PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
PM5349
UNI-®
S/
QUAD
155-
S/UNI-QUAD
SATURN
USER NETWORK INTERFACE
(155-QUAD)
DATASHEET
ISSUE 6: JULY 1999
PMC-Sierra, Inc.
105 - 8555 Baxter Place Burnaby, BC Canada V5A 4V7 604 .415.6000
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PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
CONTENTS
1
FEATURES ........................................................................................................................1
1.1
1.2
1.3
1.4
1.5
GENERAL.............................................................................................................1
THE SONET RECEIVER......................................................................................1
THE RECEIVE ATM PROCESSOR......................................................................2
THE SONET TRANSMITTER...............................................................................2
THE TRANSMIT ATM PROCESSOR ...................................................................3
2
3
4
5
6
7
8
9
APPLICATIONS .................................................................................................................4
REFERENCES ..................................................................................................................5
DEFINITIONS....................................................................................................................6
APPLICATION EXAMPLES...............................................................................................7
BLOCK DIAGRAM.............................................................................................................8
DESCRIPTION ..................................................................................................................9
PIN DIAGRAM .................................................................................................................11
PIN DESCRIPTION .........................................................................................................12
9.1
9.2
9.3
9.4
9.5
9.6
LINE SIDE INTERFACE SIGNALS ....................................................................12
UTOPIA LEVEL 2 SYSTEM INTERFACE ..........................................................15
MICROPROCESSOR INTERFACE SIGNALS ...................................................23
JTAG TEST ACCESS PORT (TAP) SIGNALS....................................................25
ANALOG SIGNALS ............................................................................................26
POWER AND GROUND.....................................................................................26
10
FUNCTIONAL DESCRIPTION ........................................................................................32
10.1
RECEIVE LINE INTERFACE (CRSI)..................................................................32
10.1.1
10.1.2
CLOCK RECOVERY.......................................................................32
SERIAL TO PARALLEL CONVERTER ...........................................33
10.2
RECEIVE SECTION OVERHEAD PROCESSOR (RSOP) ................................33
10.2.1
10.2.2
10.2.3
10.2.4
10.2.5
FRAMER .........................................................................................33
DESCRAMBLE................................................................................34
ERROR MONITOR..........................................................................34
LOSS OF SIGNAL ..........................................................................34
LOSS OF FRAME...........................................................................35
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SATURN USER NETWORK INTERFACE (155-QUAD)
10.3
10.4
RECEIVE LINE OVERHEAD PROCESSOR (RLOP).........................................35
10.3.1
10.3.2
10.3.3
LINE RDI DETECT..........................................................................35
LINE AIS DETECT..........................................................................35
ERROR MONITOR BLOCK ............................................................35
THE RECEIVE APS, SYNCHRONIZATION EXTRACTOR AND BIT ERROR
MONITOR (RASE)..............................................................................................36
10.4.1
10.4.2
10.4.3
AUTOMATIC PROTECTION SWITCH CONTROL..........................36
BIT ERROR RATE MONITOR.........................................................37
SYNCHRONIZATION STATUS EXTRACTION................................37
10.5
10.6
RECEIVE PATH OVERHEAD PROCESSOR (RPOP)........................................38
10.5.1
10.5.2
10.5.3
POINTER INTERPRETER..............................................................38
SPE TIMING....................................................................................42
ERROR MONITOR..........................................................................42
RECEIVE ATM CELL PROCESSOR (RXCP) ....................................................43
10.6.1
10.6.2
10.6.3
10.6.4
CELL DELINEATION.......................................................................43
DESCRAMBLER.............................................................................44
CELL FILTER AND HCS VERIFICATION .......................................44
PERFORMANCE MONITOR ..........................................................46
10.7
10.8
TRANSMIT LINE INTERFACE (CSPI) ...............................................................46
10.7.1
10.7.2
CLOCK SYNTHESIS ......................................................................46
PARALLEL TO SERIAL CONVERTER ...........................................47
TRANSMIT SECTION OVERHEAD PROCESSOR (TSOP)..............................47
10.8.1
10.8.2
10.8.3
10.8.4
LINE AIS INSERT ...........................................................................47
BIP-8 INSERT .................................................................................47
FRAMING AND IDENTITY INSERT ...............................................48
SCRAMBLER..................................................................................48
10.9
TRANSMIT LINE OVERHEAD PROCESSOR (TLOP) ......................................48
10.9.1
10.9.2
10.9.3
10.9.4
APS INSERT...................................................................................48
LINE BIP CALCULATE....................................................................48
LINE RDI INSERT...........................................................................48
LINE FEBE INSERT........................................................................49
10.10 TRANSMIT PATH OVERHEAD PROCESSOR (TPOP) .....................................49
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SATURN USER NETWORK INTERFACE (155-QUAD)
10.10.1
10.10.2
10.10.3
POINTER GENERATOR.................................................................49
BIP-8 CALCULATE..........................................................................50
FEBE CALCULATE.........................................................................50
10.11 TRANSMIT ATM CELL PROCESSOR (TXCP) ..................................................50
10.11.1
10.11.2
10.11.3
IDLE/UNASSIGNED CELL GENERATOR......................................50
SCRAMBLER..................................................................................50
HCS GENERATOR..........................................................................51
10.12 UTOPIA LEVEL 2 SYSTEM INTERFACE ..........................................................51
10.12.1
10.12.2
RECEIVE ATM INTERFACE ...........................................................51
TRANSMIT ATM INTERFACE.........................................................51
10.13 JTAG TEST ACCESS PORT...............................................................................52
10.14 MICROPROCESSOR INTERFACE....................................................................52
NORMAL MODE REGISTER DESCRIPTION ................................................................59
TEST FEATURES DESCRIPTION ................................................................................193
11
12
12.1
12.2
12.3
MASTER TEST REGISTER .............................................................................193
TEST MODE 0 DETAILS..................................................................................195
JTAG TEST PORT ............................................................................................196
12.3.1
BOUNDARY SCAN CELLS...........................................................198
13
OPERATION ..................................................................................................................201
13.1
SONET/SDH FRAME MAPPINGS AND OVERHEAD BYTE USAGE .............201
13.1.1
13.1.2
ATM MAPPING..............................................................................201
TRANSPORT AND PATH OVERHEAD BYTES............................202
13.2
13.3
13.4
13.5
13.6
ATM CELL DATA STRUCTURE........................................................................204
BIT ERROR RATE MONITOR ..........................................................................205
CLOCKING OPTIONS......................................................................................206
LOOPBACK OPERATION ................................................................................208
JTAG SUPPORT...............................................................................................212
13.6.1
TAP CONTROLLER ......................................................................213
13.6.1.1
13.6.1.2
STATES ............................................................................215
INSTRUCTIONS ..............................................................216
13.7
13.8
BOARD DESIGN RECOMMENDATIONS ........................................................217
POWER SUPPLY SEQUENCING ....................................................................218
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PM5349 S/UNI-QUAD
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DATASHEET
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
13.9
ANALOG POWER SUPPLY FILTERING ..........................................................219
13.10 INTERFACING TO ECL OR PECL DEVICES ..................................................220
13.11 INITIALIZING THE S/UNI-QUAD......................................................................222
13.12 USING THE S/UNI-QUAD WITH A 5 VOLT ODL..............................................222
FUNCTIONAL TIMING ..................................................................................................223
14
14.1
ATM UTOPIA LEVEL 2 SYSTEM INTERFACE ................................................223
15
16
17
18
ABSOLUTE MAXIMUM RATINGS.................................................................................226
D.C. CHARACTERISTICS .............................................................................................227
MICROPROCESSOR INTERFACE TIMING CHARACTERISTICS ..............................229
A.C. TIMING CHARACTERISTICS................................................................................233
18.1
18.2
18.3
18.4
18.5
SYSTEM RESET TIMING.................................................................................233
REFERENCE TIMING ......................................................................................233
ATM SYSTEM INTERFACE TIMING ................................................................234
TRANSMIT AND RECEIVE FRAME PULSES.................................................238
JTAG TEST PORT TIMING...............................................................................239
19
20
ORDERING AND THERMAL INFORMATION...............................................................242
MECHANICAL INFORMATION .....................................................................................244
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
1
FEATURES
1.1 General
Single chip QUAD ATM User-Network Interface operating at 155.52 Mbit/s.
•
•
Implements the ATM Forum User Network Interface Specification and the
ATM physical layer for Broadband ISDN according to CCITT
Recommendation I.432.
Processes duplex 155.52 Mbit/s STS-3c (STM-1) data streams with on-chip
clock and data recovery and clock synthesis.
•
Exceeds Bellcore GR-253-CORE jitter tolerance and intrinsic jitter criteria.
•
•
Fully implements the ATM Forum’s Utopia Level 2 Specification with Multi-
PHY addressing and parity support.
Provides a standard 5 signal IEEE 1149.1 JTAG test port for boundary scan
board test purposes.
•
•
•
Provides a generic 8-bit microprocessor bus interface for configuration,
control, and status monitoring.
Low power 3.3V CMOS with PECL and TTL compatible inputs and
CMOS/TTL outputs, with 5V tolerance inputs (system side interface is 3.3V
only).
Industrial temperature range (-40 C to +85 C).
•
•
°
°
304 pin Super BGA package.
1.2 The SONET Receiver
Provides a serial interface at 155.52 Mbit/s.
Recovers the clock and data.
•
•
•
•
Frames to and de-scrambles the recovered stream.
Detects signal degrade (SD) and signal fail (SF) threshold crossing alarms
based on received B2 errors.
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SATURN USER NETWORK INTERFACE (155-QUAD)
Captures and debounces the synchronization status (S1) byte in a readable
register.
•
Filters and captures the automatic protection switch channel (K1, K2) bytes in
readable registers and detects APS byte failure.
•
•
Counts received section BIP-8 (B1) errors, received line BIP-24 (B2) errors,
line far end block errors (FEBE), received path BIP-8 (B3) errors and path far
end block errors (FEBE).
Detects loss of signal (LOS), out of frame (OOF), loss of frame (LOF), line
alarm indication signal (LAIS), line remote defect indication (LRDI), loss of
pointer (LOP), path alarm indication signal (PAIS), path remote defect
indication (PRDI) and path extended remote defect indicator (PERDI).
•
Interprets the received payload pointer (H1, H2) and extracts the STS-3c
(STM-1) synchronous payload envelope and path overhead.
•
•
•
Provides individual divide by 8 recovered clocks (19.44 MHz) for each
channel.
Provides individual 8KHz receive frame pulses for each channel.
1.3 The Receive ATM Processor
Extracts ATM cells from the received STS-3c (STM-1) synchronous payload
envelope using ATM cell delineation.
•
Provides ATM cell payload de-scrambling.
•
•
Performs header check sequence (HCS) error detection and correction, and
idle/unassigned cell filtering.
Detects Out of Cell Delineation (OCD) and Loss of Cell Delineation (LCD).
Counts number of received cells, idle cells, errored cells and dropped cells.
Provides a synchronous 8-bit wide, four-cell FIFO buffer.
•
•
•
1.4 The SONETTransmitter
Synthesizes the 155.52 MHz transmit clock from a 19.44 MHz reference.
•
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SATURN USER NETWORK INTERFACE (155-QUAD)
Provides a differential TTL serial interface (can be adapted to PECL levels) at
155.52 Mbit/s.
•
Provides a single transmit frame pulse input across the four channels to align
the transport frames to a system reference.
•
•
•
•
Provides a single transmit byte clock (divide by eight of the synthesized line
rate clock) to provide a timing reference for the transmit outputs.
Optionally inserts register programmable APS (K1, K2) and synchronization
status (S1) bytes.
Optionally inserts path alarm indication signal (PAIS), path remote defect
indication (PRDI), line alarm indication signal (LAIS) and line remote defect
indication (LRDI).
Inserts path BIP-8 codes (B3), path far end block error (G1) indications, line
BIP-24 codes (B2), line far end block error (M1) indications, and section BIP-8
codes (B1) to allow performance monitoring at the far end.
•
Scrambles the transmitted STS-3c (STM-1) stream and inserts the framing
bytes (A1, A2).
•
•
Inserts ATM cells into the transmitted STS-3c (STM-1) synchronous payload
envelope.
1.5 TheTransmit ATM Processor
Provides idle/unassigned cell insertion.
•
•
•
•
Provides HCS generation/insertion, and ATM cell payload scrambling.
Counts number of transmitted and idle cells.
Provides a synchronous 8-bit wide, four cell FIFO buffer.
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SATURN USER NETWORK INTERFACE (155-QUAD)
2
APPLICATIONS
LAN switches and hubs.
Layer 3 switches.
•
•
•
•
Multiservice switches (FR, ATM, IP, etc..).
Gibabit and terabit routers.
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3
REFERENCES
Bell Communications Research - GR-253-CORE “SONET Transport Systems:
Common Generic Criteria”, Issue 2, December 1995.
•
•
•
•
Bell Communications Research - GR-436-CORE “Digital Network
Synchronization Plan”, Issue 1 Revision 1, June 1996..
ITU-T Recommendation G.703 - "Physical/Electrical Characteristics of
Hierarchical Digital Interfaces", 1991.
ITU-T Recommendation G.704 - "General Aspects of Digital Transmission
Systems;Terminal Equipment - Synchronous Frame Structures Used At 1544,
6312, 2048, 8488 and 44 736 kbit/s Hierarchical Levels", July, 1995.
ITU, Recommendation G.707 - "Network Node Interface For The Synchronous
Digital Hierarchy", 1996.
•
•
•
ITU Recommendation G781, “Structure of Recommendations on Equipment
for the Synchronous Design Hierarchy (SDH)”, January 1994.
ITU, Recommendation G.783 - "Characteristics of Synchronous Digital
Hierarchy (SDH) Equipment Functional Blocks", 1996.
ITU Recommendation I.432, “ISDN User Network Interfaces”, March 93.
ATM Forum - ATM User-Network Interface Specification, V3.1, October, 1995.
•
•
•
ATM Forum - “UTOPIA, An ATM PHY Interface Specification, Level 2, Version
1”, June, 1995.
PMC-950820 “SONET/SDH Bit Error Threshold Monitoring Application Note”,
Issue 2, September 1998.
•
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SATURN USER NETWORK INTERFACE (155-QUAD)
4
DEFINITIONS
The following table defines the abbreviations for the S/UNI-QUAD.
CRSI
CRU
CRU and SIPO
Clock Recovery Unit
CSU and PISO
CSPI
CSU
Clock Synthesis Unit
RASE
Receive APS, Synchronization Extractor and
Bit Error Monitor
RLOP
RPOP
RSOP
RXCP
TLOP
TPOP
TSOP
TXCP
Receive Line Overhead Processor
Receive Path Overhead Processor
Receive Section Overhead Processor
Receive ATM Cell Processor
Transmit Line Overhead Processor
Transmit Path Overhead Processor
Transmit Section Overhead Processor
Transmit ATM Cell Processor
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SATURN USER NETWORK INTERFACE (155-QUAD)
5
APPLICATION EXAMPLES
The PM5349 S/UNI-QUAD is intended for use in equipment implementing
Asynchronous Transfer Mode (ATM) User-Network Interfaces (UNI). The S/UNI-
QUAD may find application at either end of switch-to-switch links or switch-to-
terminal links. The S/UNI-QUAD performs the mapping of ATM cells into the
SONET/SDH STS-3c (STM-1) synchronous payload envelope (SPE) and
processes applicable SONET/SDH section, line and path overhead.
In a typical STS-3c (STM-1) ATM application, the S/UNI-QUAD performs clock
and data recovery for the receive direction and clock synthesis for the transmit
direction of the line interface. On the system side, the S/UNI-QUAD interfaces
directly with ATM layer processors and switching or adaptation functions using a
Utopia Level 2 compliant synchronous FIFO style interface. The initial
configuration and ongoing control and monitoring of the S/UNI-QUAD are
normally provided via a generic microprocessor interface. This application is
shown in Figure 1.
Figure 1: Typical STS-3c (STM-1) ATM Switch Port Application
Utopia Level 2
Interface
PM5349
S/UNI-155-QUAD
ATM Layer Device
RXD1+/-
SD1
Optical
Transceiver
TXD1+/-
TxClk
TxEnb
TFCLK
TENB
RXD2+/-
SD2
TxAddr<4:0>
TxClav
TADR[4:0]
TCA
Optical
Transceiver
TXD2+/-
TxSOC
TxPrty
TSOC
TPRTY
RXD3+/-
SD3
TDAT[15:0]
TxData<15:0>
Optical
Transceiver
TXD3+/-
RxClk
RFCLK
RxEnb
RENB
RXD4+/-
SD4
RADR[4:0]
RCA
RxAddr<4:0>
RxClav
Optical
Transceiver
TXD4+/-
RxSOC
RSOC
RxPrty
RPRTY
RxData<15:0>
RDAT[15:0]
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SATURN USER NETWORK INTERFACE (155-QUAD)
6
BLOCK DIAGRAM
TRSTB
TCK
INTB
RSTB
RDB
W RB
CSB
Utopia
System Interface
TMS
TDI
TDO
ALE
A[10:0]
D[7:0]
RCLK1-4
RFPO1-4
RALRM1-4
TCLK
TFPO
TFPI
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7
DESCRIPTION
The PM5349 S/UNI-QUAD SATURN User Network Interface is a monolithic
integrated circuit that implements four channel SONET/SDH processing and ATM
mapping functions at the STS-3c (STM-1) 155.52 Mbit/s rate.
The S/UNI-QUAD receives SONET/SDH streams using a bit serial interface,
recovers the clock and data and processes section, line, and path overhead. It
performs framing (A1, A2), de-scrambling, detects alarm conditions, and monitors
section, line, and path bit interleaved parity (B1, B2, B3), accumulating error
counts at each level for performance monitoring purposes. Line and path far end
block error indications (M1, G1) are also accumulated. The S/UNI-QUAD
interprets the received payload pointers (H1, H2) and extracts the synchronous
payload envelope which carries the received ATM cell payload.
The S/UNI-QUAD frames to the ATM payload using cell delineation. HCS error
correction is provided. Idle/unassigned cells may be dropped according to a
programmable filter. Cells are also dropped upon detection of an uncorrectable
header check sequence error. The ATM cell payloads are descrambled. The ATM
cells that are passed are written to a four cell FIFO buffer. The received cells are
read from the FIFO using a 16-bit wide Utopia level 2 compliant datapath
interface. Counts of received ATM cell headers that are errored and uncorrectable
and also those that are errored and correctable are accumulated independently
for performance monitoring purposes.
The S/UNI-QUAD transmits SONET/SDH streams using a bit serial interface and
formats section, line, and path overhead appropriately. It synthesizes the transmit
clock from a lower frequency reference and performs framing pattern insertion
(A1, A2), scrambling, alarm signal insertion, and creates section, line, and path
bit interleaved parity (B1, B2, B3) as required to allow performance monitoring at
the far end. Line and path far end block error indications (M1, G1) are also
inserted. The S/UNI-QUAD generates the payload pointer (H1, H2) and inserts
the synchronous payload envelope which carries the ATM cell payload. The
S/UNI-QUAD also supports the insertion of a large variety of errors into the
transmit stream, such as framing pattern errors, bit interleaved parity errors, and
illegal pointers, which are useful for system diagnostics and tester applications.
ATM cells are written to an internal four cell FIFO using a 16-bit wide Utopia Level
2 datapath interface. Idle/unassigned cells are automatically inserted when the
internal FIFO contains less than one cell. The S/UNI-QUAD provides generation
of the header check sequence and scrambles the payload of the ATM cells. Each
of these transmit ATM cell processing functions can be enabled or bypassed.
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SATURN USER NETWORK INTERFACE (155-QUAD)
No line rate clocks are required directly by the S/UNI-QUAD as it synthesizes the
transmit clock and recovers the receive clock using a 19.44 MHz reference clock.
The S/UNI-QUAD outputs a differential TTL (externally coverted to PECL) line
data (TXD+/-).
The S/UNI-QUAD is configured, controlled and monitored via a generic 8-bit
microprocessor bus interface. The S/UNI-QUAD also provides a standard 5
signal IEEE 1149.1 JTAG test port for boundary scan board test purposes.
The S/UNI-QUAD is implemented in low power, +3.3 Volt, CMOS technology. It
has TTL and pseudo-ECL (PECL) compatible inputs and TTL/CMOS compatible
outputs and is packaged in a 304 pin SBGA package.
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8
PIN DIAGRAM
The S/UNI-QUAD is available in a 304 pin SBGA package having a body size of
31 mm by 31 mm and a ball pitch of 1.27 mm.
23
VDD
22
21
20
19
18
17
D[2]
D[1]
BIAS
N/C
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VDD
A
B
VSS
VDD
VSS
TDAT[12] TDAT[15] PHY_OEN
VSS
N/C
N/C
VDD
VSS
D[4]
D[3]
D[0]
A[0]
D[6]
D[5]
VDD
A[3]
A[2]
A[1]
D[7]
A[7]
A[6]
A[5]
A[4]
VSS
A[9]
A[8]
VDD
A[10]
CSB
ALE
RDB
WRB
RSTB
INTB
TDI
TDO
TMS
TRSTB
VDD
VSS
TCK
N/C
N/C
N/C
N/C
N/C
N/C
VSS
N/C
RAVD1_B RAVS1_B
VSS
VSS
VSS
VDD
TDAT[13]
N/C
N/C
QAVS_5
N/C
N/C
RAVD1_C
VDD
VSS
VDD
N/C
VDD
VSS
VSS
C
TDAT[7]
TDAT[10] TDAT[14]
QAVD_5
VDD
TXD1P
RX1-
D
TDAT[4] TDAT[6] TDAT[9]
VDD
TDAT[11]
RAVS1_C
TXD1N
RX1+
E
TDAT[0] TDAT[3] TDAT[5] TDAT[8]
N/C
SD1
TXD2P
VSS
F
VSS
N/C
TDAT[2]
VDD
VDD
RAVS1_A TXD2N
G
H
TADR[0] TADR[2] TADR[4] TDAT[1]
RAVD1_A
N/C
N/C
RX2-
RX2+
VSS
VSS
TCA
TPRTY
TENB
TADR[1] TADR[3]
RAVS2_A RAVD2_A
TSOC
VDD
J
VDD
SD2
N/C
N/C
RAVD2_C
N/C
DTCA[3] DTCA[4]
K
BIAS
TFCLK
RAVS2_C RAVS2_B
DTCA[1] DTCA[2]
L
N/C
N/C
N/C
RAVD2_B TAVD1_A TAVS1_A TAVD1_B
DRCA[4]
VDD
M
N
VSS
VDD
TAVS1_B RAVD3_B
VSS
N/C
DRCA[3] DRCA[2] DRCA[1]
RCA
RAVD3_C RAVS3_B
N/C
ATB0
N/C
RSOC
P
RENB
RFCLK
RADR[3]
VDD
ATB2
VDD
ATB1
N/C
RAVS3_C
ATB3
R
RADR[4] RADR[2] RADR[1]
T
VSS
RADR[0] RPRTY RDAT[13]
RAVS3_A
N/C
N/C
TXD3P
VSS
U
RDAT[15] RDAT[14] RDAT[12] RDAT[9]
SD3
RAVD3_A TXD3N
V
VSS
RDAT[11] RDAT[8]
VDD
VDD
N/C
RX3-
TXD4P
RX4-
VSS
VSS
RX3+
TXD4N
RX4+
VSS
W
Y
RDAT[10] RDAT[7] RDAT[5] RDAT[2]
RAVS4_A
VDD
SD4
RDAT[6] RDAT[4] RDAT[1]
VDD
RDAT[0]
N/C
N/C
N/C
N/C
N/C
VDD
N/C
N/C
VSS
N/C
N/C
N/C
N/C
N/C
N/C
N/C
VSS
VDD
N/C
RALRM3 RCLK2
RALRM1 RCLK1
VDD
RFPO1
RFPO2
VSS
N/C
N/C
N/C
N/C
N/C
N/C
VDD
N/C
N/C
N/C
N/C
N/C
N/C
VSS
TFPI
N/C
N/C
N/C
VDD
QAVD_1
N/C
RAVS4_C
N/C
RAVD4_A
VDD
AA
AB
AC
RDAT[3]
VSS
VSS
VDD
VSS
VDD
VSS
N/C
RAVD4_C
N/C
RALRM4
RALRM2
RCLK4
RCLK3
RFPO4
RFPO3
TFPO
TCLK
QAVS_1
VSS
VDD
VDD
N/C
VSS
REFCLK RAVD4_B RAVS4_B
VSS
VDD
BOTTOM VIEW
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S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
9
PIN DESCRIPTION
9.1 Line Side Interface Signals
Pin Name
Type
Pin
No.
Function
REFCLK
Input
AC5
The reference clock input (REFCLK) must provide a
jitter-free 19.44 MHz reference clock. It is used as
the reference clock by both clock recovery and clock
synthesis circuits.
This pin is shared by all channels.
RXD1+
RXD1-
RXD2+
RXD2-
RXD3+
RXD3-
RXD4+
RXD4-
Differential E2
The receive differential data inputs (RXD+, RXD-)
contain the NRZ bit serial receive stream. The
receive clock is recovered from the RXD+/- bit
stream. Please refer to the Operation section for a
discussion of PECL interfacing issues.
PECL
inputs
D1
G1
G2
W1
V2
This pin is available independently for each channel.
AA1
Y2
SD1
SD2
SD3
SD4
Single- E3
Ended J3
The Signal Detect pin (SD) indicates the presence
of valid receive signal power from the Optical
Physical Medium Dependent Device. A PECL high
indicates the presence of valid data and a PECL low
indicates a loss of signal. It is mandatory that SD be
terminated into the equivalent network that RXD+/-
is terminated into.
PECL
Input
U3
W3
This pin is available independently for each channel.
RCLK1
RCLK2
RCLK3
RCLK4
Output AA13 The receive byte clock (RCLK) provides a timing
Y13 reference for the S/UNI-QUAD receive outputs.
AC14 RCLK is a divide by eight of the recovered line rate
AB14 clock (19.44 MHz).
This pin is available independently for each channel.
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S/UNI-QUAD
DATASHEET
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
RFPO1
RFPO2
RFPO3
RFPO4
Output AA12 The Receive Frame Pulse Output (RFPO), when the
AB12 framing alignment is found (the OOF register bit is
AC13 logic zero), is an 8 kHz signal derived from the
AB13 receive line clock. RFPO pulses high for one RCLK
cycle every 2430 RCLK cycles (STS-3c (STM-1)).
RFPO is updated on the rising edge of RCLK.
This pin is available independently for each channel.
RALRM1
RALRM2
RALRM3
RALRM4
Output AA14 The Receive Alarm (RALRM) output indicates the
AC15 state of the receive framing. RALRM is low if no
Y14
receive alarms are active. RALRM is high if line AIS
AB15 (LAIS), path AIS (PAIS), line RDI (LRDI), path RDI
(PRDI), enhanced path RDI (PERDI), loss of signal
(LOS), loss of frame (LOF), out of frame (OOF),
loss of pointer (LOP), loss of cell delineation (LCD),
signal fail BER (SFBER), signal degrade BER
(SDBER), or path signal label mismatch (PSLM) is
detected in the associated channel. Each alarm can
be individually enabled using bits in the S/UNI-
QUAD Channel Alarm Control registers #1 and #2.
RALRM is updated on the rising edge of RCLK.
This pin is available independently for each channel.
TXD1+
TXD1-
TXD2+
TXD2-
TXD3+
TXD3-
TXD4+
TXD4-
Differential C1
TTL output D2
E1
(externally F2
converted T2
to PECL) U1
W2
The transmit differential data outputs (TXD+, TXD-)
contain the 155.52 Mbit/s transmit stream.
This pin is available independently for each channel.
Y1
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PM5349 S/UNI-QUAD
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
TFPI
Input
Y7
The active high framing position (TFPI) signal is an
8 kHz timing marker for the transmitter.TFPI is used
to align the SONET/SDH transport frame generated
by the S/UNI-QUAD device to a system reference.
TFPI is internally used to align a master frame pulse
counter. When TFPI is not used, this counter is free-
running.
TFPI should be brought high for a single TCLK
period every 2430 (STS-3c (STM-1)) TCLK cycles,
or a multiple thereof.TFPI shall be tied low if such
synchronization is not required.TFPI cannot be
used as an input to a loop-timed channel. For TFPI
to operate correctly it is required that the
TCLK/TFPO output be configured to output the
CSU byte clock.
The TFPI_EN register bits allow to individually
configure each channel to use the global framing
pulse counter and TFPI for framing alignment.
TFPI is sampled on the rising edge of TCLK, but
only when the TTSEL register bit is set to logic zero.
When TTSEL is set to logic one, TFPI is unused.
This pin is shared by all channels.
TCLK
Output AC11 The transmit byte clock (TCLK) output provides a
timing reference for the S/UNI-QUAD self-timed
channels.TCLK always provide a divide by eight of
the synthesized line rate clock and thus has a
nominal frequency of 19.44 MHz. TFPI is sampled
on the rising edge of TCLK.TCLK does not apply to
internally loop-timed channels, in which case the
channel’s RCLK provides transmit timing
information.
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PM5349 S/UNI-QUAD
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
TFPO
Output AB11 The Transmit Frame Pulse Output (TFPO) pulses
high for one TCLK cycle every 2430 TCLK cycles
and provides an 8 KHz timing reference.TFPO can
be assigned to any of the four channels using
TFPO_CH[1:0] configuration register bits, with the
restriction that the selected channel must be self-
timed (not in loop-timed or line-loopback modes).
TFPO is updated on the rising edge of TCLK.
9.2 UTOPIA Level 2 System Interface
Pin Name
Type
Pin
No.
Function
TDAT[15]
TDAT[14]
TDAT[13]
TDAT[12]
TDAT[11]
TDAT[10]
TDAT[9]
TDAT[8]
TDAT[7]
TDAT[6]
TDAT[5]
TDAT[4]
TDAT[3]
TDAT[2]
TDAT[1]
TDAT[0]
Input
A20
C19
B20
A21
D19
C20
D21
E20
C23
D22
E21
D23
E22
F21
G20
E23
UTOPIA Transmit Cell Data Bus (TDAT[15:0]).
This data bus carries the ATM cell octets that are
written to the selected transmit FIFO. TDAT[15:0] is
considered valid only when TENB is simultaneously
asserted and the S/UNI-QUAD is selected via
TADR[4:0].
TDAT[15:0] is sampled on the rising edge of TFCLK.
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PM5349 S/UNI-QUAD
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
TPRTY
Input
H22
UTOPIA Transmit bus parity (TPRTY) signal.
The transmit parity (TPRTY) signal indicates the
parity of the TDAT[15:0] bus. A parity error is
indicated by a status bit and a maskable interrupt.
Cells with parity errors are inserted in the transmit
stream, so the TPRTY input may be unused. Odd or
even parity selection is made independently for
each channel using the RXPTYP register bit.
TPRTY is considered valid only when TENB is
simultaneously asserted and the S/UNI-QUAD is
selected via TADR[4:0].
TPRTY is sampled on the rising edge of TFCLK.
UTOPIA Transmit Start of Cell (TSOC) signal.
TSOC
Input
J21
The transmit start of cell (TSOC) signal marks the
start of cell on the TDAT bus. When TSOC is high,
the first word of the cell structure is present on the
TDAT bus. It is not necessary for TSOC to be
present for each cell. An interrupt may be
generated if TSOC is high during any word other
than the first word of the cell structure.
TSOC is considered valid only when TENB is
simultaneously asserted and the S/UNI-QUAD is
selected via TADR[4:0].
TSOC is sampled on the rising edge of TFCLK.
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PM5349 S/UNI-QUAD
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
TENB
Input
J22
UTOPIA Transmit Multi-PHY Write Enable (TENB)
signal.
The TENB signal is an active low input which is
used along with the TADR[4:0] inputs to initiate
writes to the transmit FIFO’s.
TENB works as follows. When sampled high, no
write is performed, but the TADR[4:0] address is
latched to identify the transmit FIFO to be
accessed. When TENB is sampled low, the word on
the TDAT bus is written into the transmit FIFO that is
selected by the TADR[4:0] address bus. A complete
53 octet cell must be written to the transmit FIFO
before it is inserted into the transmit stream. Idle
cells are inserted when a complete cell is not
available. While TENB is deasserted, TADR[4:0] can
be used for polling TCA.
TENB is sampled on the rising edge of TFCLK.
TADR[4]
TADR[3]
TADR[2]
TADR[1]
TADR[0]
Input
G21
H20
G22
H21
G23
UTOPIA Transmit Write Address (TADR[4:0])
signals.
The TADR[4:0] bus is used to select the FIFO (and
hence port) that is written to using the TENB signal
and the FIFO's whose cell available signal is visible
on the TCA polling output.
Note that address 0x1F is the null-PHY address and
cannot be assigned to any port on the S/UNI-QUAD.
TADR[4:0] is sampled on the rising edge of TFCLK.
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S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
TCA
Output J23
UTOPIA Transmit multi-PHY Cell Available (TCA)
The TCA signal indicates when a cell is available in
the transmit FIFO for the port polled by TADR[4:0]
when TENB is asserted. When high, TCA indicates
that the corresponding transmit FIFO is not full and
a complete cell may be written. When TCA goes
low, it can be configured to indicate either that the
corresponding transmit FIFO is near full or that the
corresponding transmit FIFO is full. TCA will
transition low on the rising edge of TFCLK after the
Payload word 19 (TCALEVEL0=0) or 23
(TCALEVEL0=1) is sampled if the PHY being polled
is the same as the PHY in use. To reduce FIFO
latency, the FIFO depth at which TCA indicates "full"
can be set to one, two, three or four cells. Note that
regardless of what fill level TCA is set to indicate
"full" at, the transmit cell processor can store 4
complete cells.
TCA is tri-stated when either the null-PHY address
(0x1F) or an address not matching the address
space set by PHY_ADR[2:0] is latched from the
TADR[4:0] inputs when TENB is high.
TCA is updated on the rising edge of TFCLK.
UTOPIA Transmit FIFO Write Clock (TFCLK).
TFCLK
Input
K20
This signal is used to write ATM cells to the four cell
transmit FIFOs.
TFCLK cycles at a 50 MHz or lower instantaneous
rate.
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S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
DTCA[4]
DTCA[3]
DTCA[2]
DTCA[1]
Output K22
UTOPIA Direct Transmit Cell Available (DTCA[4:1]).
K23
L20
L21
These output signals provide direct status indication
of when a cell is available in the transmit FIFO for
the corresponding port. When high, DTCA indicates
that the corresponding transmit FIFO is not full and
a complete cell may be written. When DTCA goes
low, it can be configured to indicate either that the
corresponding transmit FIFO is near full or that the
corresponding transmit FIFO is full. DTCA will
transition low on the rising edge of TFCLK after the
Payload word 19 (TCALEVEL0=0) or 23
(TCALEVEL0=1) is sampled if the PHY being polled
is the same as the PHY in use. To reduce FIFO
latency, the FIFO depth at which DTCA indicates
"full" can be set to one, two, three or four cells. Note
that regardless of what fill level DTCA is set to
indicate "full" at, the transmit cell processor can
store 4 complete cells
DTCA[4:1] are updated on the rising edge of
TFCLK.
RDAT[15]
RDAT[14]
RDAT[13]
RDAT[12]
RDAT[11]
RDAT[10]
RDAT[9]
RDAT[8]
RDAT[7]
RDAT[6]
RDAT[5]
RDAT[4]
RDAT[3]
RDAT[2]
RDAT[1]
RDAT[0]
Output
U23 UTOPIA Receive Cell Data Bus (RDAT[15:0]).
U22
T20
U21
V22
This data bus carries the ATM cells that are read
from the receive FIFO selected by RADR[4:0].
RDAT[15:0] is tri-stated when RENB is high.
RDAT[15:0] is tristated when RENB is high.
RDAT[15:0] is also tristated when either the null-
PHY address (0x1F) or an address not matching
the address space is latched from the RADR[4:0]
inputs when RENB is high.
W23
U20
V21
W22
Y23
W21
Y22
AA23
W20
Y21
RDAT[15:0] is updated on the rising edge of
RFCLK.
AA20
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DATASHEET
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ISSUE 6
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Pin Name
Type
Pin
No.
Function
RPRTY
Output T21
UTOPIA Receive Parity (RPRTY).
The receive parity (RPRTY) signal indicates the
parity of the RDAT bus. RPRTY reflects the parity of
RDAT[15:0]. Odd or even parity selection is made
independently for every channel by using the
RXPTYP register bit (in ATM cell processors, the
four RXCP shall be programmed with the same
parity setting).RPRTY is tristated when RENB is
high. RPRTY is also tristated when either the null-
PHY address (0x1F) or an address not matching
the address space is latched from the RADR[4:0]
inputs when RENB is high.
RPRTY is updated on the rising edge of RFCLK.
UTOPIA Receive Start of Cell (RSOC).
RSOC
Output P23
RSOC marks the start of cell on the RDAT bus.
RSOC is tristated when RENB is deasserted.
RSOC is also tristated when either the null-PHY
address (0x1F) or an address not matching the
address space is latched from the RADR[4:0] inputs
when RENB is high.
RSOC is sampled on the rising edge of RFCLK.
UTOPIA Receive multi-PHY Read Enable (RENB).
RENB
Input
P22
The RENB signal is used to initiate reads from the
receive FIFO’s. RENB works as follows. When
RENB is sampled high, no read is performed and
RDAT[15:0], RPRTY and RSOC are tristated, and
the address on RADR[4:0] is latched to select the
device or port for the next FIFO access. When
RENB is sampled low, the word on the RDAT bus is
read from the selected receive FIFO.
RENB must operate in conjunction with RFCLK to
access the FIFO’s at a high enough rate to prevent
FIFO overflows. The system may de-assert RENB
at anytime it is unable to accept another byte.
RENB is sampled on the rising edge of RFCLK.
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S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
R23
P20
R22
R21
T22
RADR[4]
RADR[3]
RADR[2]
RADR[1]
RADR[0]
Input
UTOPIA Receive Read Address (RADR[4:0]).
The RADR[4:] signal is used to select the FIFO (and
hence port) that is read from using the RENB signal
and the FIFO whose cell available signal is visible
on the RCA output.
Note that address 0x1F is the null-PHY address and
will not be identified to any port on the
S/UNI-QUAD.
RADR[4:0] is sampled on the rising edge of RFCLK.
UTOPIA Receive multi-PHY Cell Available (RCA).
RCA
Output N20
RCA indicates when a cell is available in the receive
FIFO for the port selected by RADR[4:0]. RCA can
be configured to be de-asserted when either zero or
four bytes remain in the selected/addressed FIFO.
RCA will thus transition low on the rising edge of
RFCLK after Payload word 24 (RCALEVEL0=1) or
19 (RCALEVEL0=0) is output if the PHY being
polled is the same as the PHY in use.
RCA is tristated when either the null-PHY address
(0x1F) or an address not matching the address
space is latched from the RADR[4:0] inputs when
RENB is high.
RCA is updated on the rising edge of RFCLK.
UTOPIA Receive FIFO Read Clock (RFCLK).
RFCLK
Input
P21
RFCLK is used to read ATM cells from the receive
FIFO’s. RFCLK must cycle at a 50 MHz or lower
instantaneous rate, but at a high enough rate to
avoid FIFO overflows.
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PM5349 S/UNI-QUAD
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Pin Name
Type
Pin
No.
Function
DRCA[4]
DRCA[3]
DRCA[2]
DRCA[1]
Output M21
UTOPIA Direct Receive Cell Available (DRCA[4:1]).
N23
N22
N21
These output signals provides direct status
indication of when a cell is available in the receive
FIFO for the corresponding port. DRCA can be
configured to be de-asserted when either zero or
four bytes remain in the selected/addressed FIFO.
DRCA will thus transition low on the rising edge of
RFCLK after Payload word 24 (RCALEVEL0=1) or
19 (RCALEVEL0=0) is output if the PHY being
polled is the same as the PHY in use.
DRCA[x] is updated on the rising edge of RFCLK.
PHY_OEN
Input
A19
The PHY Output Enable (PHY_OEN) signal controls
the operation of the system interface. When set to
logic zero, all System Interface outputs are held
tristate. When PHY_OEN is set to logic one, the
interface is enabled. PHY_OEN can be overwritten
by the PHY_EN Master System Interface
Configuration register bit. PHY_OEN and PHY_EN
are OR’ed together to enable the interface.
When the S/UNI-QUAD is the only PHY layer device
on the bus, PHY_OEN can safely be tied to logic
one. When the S/UNI-QUAD shares the bus with
other devices, then PHY_OEN must be tied to logic
zero, and the PHY_EN register bit used to enable
the bus once its PHY_ADR[2:0] is programmed in
order to avoid conflicts.
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SATURN USER NETWORK INTERFACE (155-QUAD)
9.3 Microprocessor Interface Signals
Pin Name
Type
Pin
No.
Function
CSB
Input
B11
The active-low chip select (CSB) signal is low
during S/UNI-QUAD register accesses.
Note that when not being used, CSB must be tied
high. If CSB is not required (i.e., registers accesses
are controlled using the RDB and WRB signals
only), CSB must be connected to an inverted
version of the RSTB input.
RDB
Input
D11
A10
The active-low read enable (RDB) signal is low
during S/UNI-QUAD register read accesses. The
S/UNI-QUAD drives the D[7:0] bus with the contents
of the addressed register while RDB and CSB are
low.
WRB
Input
I/O
The active-low write strobe (WRB) signal is low
during a S/UNI-QUAD register write accesses. The
D[7:0] bus contents are clocked into the addressed
register on the rising WRB edge while CSB is low.
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D16
B17
A17
C16
B16
C15
B15
D14
The bi-directional data bus D[7:0] is used during
S/UNI-QUAD register read and write accesses.
A[0]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
A[8]
A[9]
Input
A15
C14
B14
A14
D13
C13
B13
A13
C12
B12
The address bus A[9:0] selects specific registers
during S/UNI-QUAD register accesses.
Except for S/UNI-QUAD global registers, the A[9:8]
bits allow to select which channel is being
accessed. The A[7:0] bits allow to select which
register is being access within a given channel
address space.
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Pin Name
Type
Pin
No.
Function
A[10]/TRS
RSTB
Input
A11
B10
C11
The test register select (TRS) signal selects
between normal and test mode register accesses.
TRS is high during test mode register accesses,
and is low during normal mode register accesses.
Input
pull-up
The active-low reset (RSTB) signal provides an
asynchronous S/UNI-QUAD reset. RSTB is a
Schmitt triggered input with an integral pull-up
resistor.
ALE
Input
pull-up
The address latch enable (ALE) is active-high and
latches the address bus A[7:0] when low. When
ALE is high, the internal address latches are
transparent. It allows the S/UNI-QUAD to interface
to a multiplexed address/data bus. ALE has an
integral pull-up resistor.
INTB
Output C10
Open-
drain
The active-low interrupt (INTB) signal goes low
when a S/UNI-QUAD interrupt source is active and
that source is unmasked. The S/UNI-QUAD may be
enabled to report many alarms or events via
interrupts.
Examples of interrupt sources are loss of signal
(LOS), loss of frame (LOF), line AIS, line remote
defect indication (LRDI) detect, loss of pointer
(LOP), path AIS, path remote defect indication
detect and others.
INTB is tristated when the interrupt is acknowledged
via an appropriate register access. INTB is an open
drain output.
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9.4 JTAGTest Access Port (TAP) Signals
Pin Name
Type
Pin
No.
Function
TCK
Input
B8
The test clock (TCK) signal provides timing for test
operations that are carried out using the IEEE
P1149.1 test access port.
TMS
Input
pull-up
B9
The test mode select (TMS) signal controls the test
operations that are carried out using the IEEE
P1149.1 test access port. TMS is sampled on the
rising edge of TCK. TMS has an integral pull-up
resistor.
TDI
Input
pull-up
D10
The test data input (TDI) signal carries test data into
the S/UNI-QUAD via the IEEE P1149.1 test access
port. TDI is sampled on the rising edge of TCK. TDI
has an integral pull-up resistor.
TDO
Tristate A9
The test data output (TDO) signal carries test data
out of the S/UNI-QUAD via the IEEE P1149.1 test
access port. TDO is updated on the falling edge of
TCK. TDO is a tristate output which is inactive
except when scanning of data is in progress.
TRSTB
Input
pull-up
C9
The active-low test reset (TRSTB) signal provides
an asynchronous S/UNI-QUAD test access port
reset via the IEEE P1149.1 test access port.
TRSTB is a Schmitt triggered input with an integral
pull-up resistor.
Note that when not being used, TRSTB must be
connected to the RSTB input.
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9.5 Analog Signals
Pin Name
Type
Pin
No.
Function
ATB0
ATB1
ATB2
ATB3
Analog I/O P2
The Analog Test Bus (ATB).These pins are used for
manufacturing testing only and should be connected
ground.
P3
P4
R1
9.6 Power and Ground
Pin Name
Type
Pin
No.
Function
BIAS
Bias
Voltage C17
K21
I/O Bias (BIAS). When tied to +5V via a 1 KΩ
resistor, the BIAS input is used to bias the wells in
the input and I/O pads so that the pads can tolerate
5V on their inputs without forward biasing internal
ESD protection devices. When BIAS is tied to
+3.3V, the inputs and bi-directional inputs will only
tolerate 3.3V level inputs.
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Pin Name
Type
Pin
No.
Function
VDD
Power
A1
A23
B2
The digital power (VDD) pins should be connected
to a well-decoupled +3.3 V DC supply.
B22
C3
C21
D4
D6
D9
D12
D15
D18
D20
F4
F20
J4
J20
M4
M20
R4
R20
V4
V20
Y4
Y6
Y9
Y12
Y15
Y18
Y20
AA3
AA21
AB2
AB22
AC1
AC23
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Pin Name
Type
Pin
No.
Function
VSS
Ground A2
The digital ground (VSS) pins should be connected
to ground.
A6
A8
A12
A16
A18
A22
B1
B3
B21
B23
C2
C22
F1
F23
H1
H23
M1
M23
T1
T23
V1
V23
AA2
AA22
AB1
AB3
AB21
AB23
AC2
AC6
AC8
AC12
AC16
AC18
AC22
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Pin Name
Type
Pin
No.
Function
QAVD
QAVS
AVD
Analog AA6
Power C6
QAVD1
QAVD2
The quiet analog power (QAVD) pins for the analog
core. QAVD should be connected to analog +3.3V.
Analog AB5
Ground B5
QAVS1
QAVS2
The quiet analog ground (QAVS) pins for the analog
core. QAVS should be connected to analog GND.
Analog G4
RAVD1_A - Channel #1 PECL Input Buffer
RAVD1_B - Channel #1 CRU
RAVD1_C - Channel #1 CRU
RAVD2_A - Channel #2 PECL Input Buffer
RAVD2_B - Channel #2 CRU
RAVD2_C - Channel #2 CRU
RAVD3_A - Channel #3 PECL Input Buffer
RAVD3_B - Channel #3 CRU
RAVD3_C - Channel #3 CRU
RAVD4_A - Channel #4 PECL Input Buffer
RAVD4_B - Channel #4 CRU
RAVD4_C - Channel #4 CRU
TAVD1_A - CSU
Power
A4
C4
H2
L4
J1
U2
M2
N4
Y3
AC4
AA4
L3
L1
TAVD1_B - CSU
The analog power (AVD) pins for the analog core.
AVD should be connected to analog +3.3V.
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Pin Name
Type
Pin
No.
Function
AVS
Analog F3
Ground A3
RAVS1_A - Channel #1 PECL Input Buffer
RAVS1_B - Channel #1 CRU
RAVS1_C - Channel #1 CRU
RAVS2_A - Channel #2 PECL Input Buffer
RAVS2_B - Channel #2 CRU
RAVS2_C - Channel #2 CRU
RAVS3_A - Channel #3 PECL Input Buffer
RAVS3_B - Channel #3 CRU
RAVS3_C - Channel #3 CRU
RAVS4_A - Channel #4 PECL Input Buffer
RAVS4_B - Channel #4 CRU
RAVS4_C - Channel #4 CRU
TAVS1_A - CSU
D5
H3
K3
K4
T4
N3
P1
W4
AC3
Y5
L2
M3
TAVS1_B - CSU
The analog ground (AVS) pins for the analog core.
AVS should be connected to analog GND.
Notes on Pin Description:
1. All S/UNI-QUAD inputs and bi-directionals present minimum capacitive
loading and operate at TTL logic levels except: the SD, RXD+ and RXD-
inputs which operate at pseudo-ECL (PECL) logic levels
2. The RDAT[7:0], RPRTY, RSOC, DRCA4-1, RCA, DTCA4-1, TCA, TCLK and
RCLK1-4 outputs have a 4 mA DC drive capability. The TDO output has a 1
mA drive capability. All the other outputs have a 2 mA DC drive capability.
The TXD+ and TXD- outputs are met to be terminated in a passive network
and interface at PECL levels.
3. It is mandatory that every ground pin (VSS) be connected to the printed
circuit board ground plane to ensure a reliable device operation.
4. It is mandatory that every power pin (VDD) be connected to the printed circuit
board power plane to ensure a reliable device operation.
5. All analog power and ground can be sensitive to noise. They must be
isolated from the digital power and ground. Care must be taken to decouple
these pins from each other and all other analog power and ground pins.
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Power supply filtering recommendations are provided in the
OPERATION section of this document.
6. Due to ESD protection structures in the pads it is necessary to exercise
caution when powering a device up or down. ESD protection devices behave
as diodes between power supply pins and from I/O pins to power supply pins.
Under extreme conditions it is possible to blow these ESD protection devices
or trigger latch up. Please adhere to the recommended power supply
sequencing as described in the OPERATION section of this document.
7. If it is intended to substitute a S/UNI-QUAD in a S/UNI-TETRA socket,
special attention must be given to the NC pins. The requirement is that no
S/UNI-QUAD input pin is left floating when used in a S/UNI-QUAD socket.
Please refer to the relevant PMC-Sierra, Inc. application note.
8. Some device pins can be made 5V tolerant by connecting the BIAS pins to a
5V power supply, while some other pins are 3.3V only. In summary, the
system interface is 3.3V only while the microprocessor interface, SONET and
line interfaces can be 5V tolerant.
3.3V only I/O’s:
RDAT[15:0], RSOC, RPRTY, RENB,
TDAT[15:0], TSOC, TPRTY, TENB,
RCA, DRCA4-1, TCA, DTCA4-1,
RADR[5:0], TADR[5:0], PHY_OEN
5V tolerant I/O’s:
REFCLK, RXD
RCLK4-1, RFPO4-1, RALRM4-1,
TCLK, TFPO, TFPI,
D[7:0], A[10:0], WRB, RDB, CSB, RSTB, INTB, ALE,
TRSTB, TCK, TMS, TDI, TDO,
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10 FUNCTIONAL DESCRIPTION
10.1 Receive Line Interface (CRSI)
The Receive Line Interface allows to directly interface the S/UNI-QUAD with
optical modules (ODLs) or other medium interfaces.This block performs clock
and data recovery and performs serial to parallel conversion on the incoming
155.52 Mbit/s data stream.
10.1.1 Clock Recovery
The clock recovery unit recovers the clock from the incoming bit serial data
stream. The clock recovery unit is fully compliant with SONET and SDH jitter
tolerance requirements. The clock recovery unit utilizes a low frequency
reference clock to train and monitor its clock recovery PLL. Under loss of signal
conditions, the clock recovery unit continues to output a line rate clock that is
locked to this reference for keep alive purposes. The clock recovery unit utilizes a
reference clocks at 19.44 MHz. The clock recovery unit provides status bits that
indicate whether it is locked to data or the reference. The clock recovery unit also
supports diagnostic loopback and a loss of signal input that squelches normal
input data.
Initially, the PLL locks to the reference clock, REFCLK. When the frequency of
the recovered clock is within 488 ppm of the reference clock, the PLL attempts to
lock to the data. Once in data lock, the PLL reverts to the reference clock if no
data transitions occur in 80 bit periods or if the recovered clock drifts beyond 488
ppm of the reference clock.
When the transmit clock is derived from the recovered clock (loop timing), the
accuracy of the transmit clock is directly related to the REFCLK reference
accuracy in the case of a loss of signal condition. To meet the Bellcore GR-253-
CORE SONET Network Element free-run accuracy specification, the reference
must be within +/-20ppm. When not loop timed, the REFCLK accuracy may be
relaxed to +/-50ppm.
The loop filter transfer function is optimized to enable the PLL to track the jitter,
yet tolerate the minimum transition density expected in a received SONET/SDH
data signal. The total loop dynamics of the clock recovery PLL yield a jitter
tolerance that exceeds the minimum tolerance proposed for SONET equipment
by GR-253-CORE (Figure 3).
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Figure 2: Typical STS-3c (STM-1) JitterTolerance
100
10
1
GR-253-CORE
0.1
100
1000
10000
100000
1000000
10000000
Jitte r Fre q . (Hz)
Note that for frequencies below 300 Hz, the jitter tolerance is greater than 15
UIpp; 15 UIpp is the maximum jitter tolerance of the test equipment. Also note
that the dip in the tolerance curve between 300 Hz and 10 kHz is due to the
S/UNI-QUAD's internal clock difference detector: if the recovered clock drifts
beyond 488 ppm of the reference, the PLL locks to the reference clock.
10.1.2 Serial to Parallel Converter
The Serial to Parallel Converter (SIPO) converts the received bit serial stream to
a byte serial stream. The SIPO searches for the SONET/SDH framing pattern
(A1, A2) in the receive stream, and performs serial to parallel conversion on octet
boundaries.
10.2 Receive Section Overhead Processor (RSOP)
The Receive Section Overhead Processor (RSOP) provides frame
synchronization, de-scrambling, section level alarm and performance monitoring.
10.2.1 Framer
The Framer Block determines the in-frame/out-of-frame status of the receive
stream.
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While in-frame, the framing bytes (A1, A2) in each frame are compared against
the expected pattern. Out-of-frame is declared when four consecutive frames
containing one or more framing pattern errors have been received.
While out-of-frame, the SIPO block monitors the receive stream for an occurrence
of the framing pattern. When a framing pattern is recognized, the Framer block
verifies that an error free framing pattern is present in the next frame before
declaring in-frame.
10.2.2 Descramble
The Descramble Block utilizes a frame synchronous descrambler to process the
7
6
receive stream. The generating polynomial is x + x + 1 and the sequence
length is 127. Details of the de-scrambling operation are provided in the
references. Note that the framing bytes (A1 and A2) and the trace/growth bytes
(J0/Z0) are not descrambled. A register bit is provided to disable the de-
scrambling operation.
10.2.3 Error Monitor
The Error Monitor Block calculates the received section BIP-8 error detection
code (B1) based on the scrambled data of the complete STS-3c (STM-1) frame.
The section BIP-8 code is based on a bit interleaved parity calculation using even
parity. Details are provided in the references. The calculated BIP-8 code is
compared with the BIP-8 code extracted from the B1 byte of the following frame.
Differences indicate that a section level bit error has occurred. Up to 64000 (8 x
8000) bit errors can be detected per second. The Error Monitor Block
accumulates these section level bit errors in a 16-bit saturating counter that can
be read via the microprocessor interface. Circuitry is provided to latch this
counter so that its value can be read while simultaneously resetting the internal
counter to 0 or 1, if appropriate, so that a new period of accumulation can begin
without loss of any events. It is intended that this counter be polled at least once
per second so as not to miss bit error events.
10.2.4 Loss of Signal
The Loss of Signal Block monitors the scrambled data of the receive stream for
the absence of 1's. When 20 ± 3 µs of all zeros patterns is detected, a loss of
signal (LOS) is declared. Loss of signal is cleared when two valid framing words
are detected and during the intervening time, no loss of signal condition is
detected. The LOS signal is optionally reported on the RALRM output pin when
enabled by the LOSEN Receive Alarm Control Register bit.
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10.2.5 Loss of Frame
The Loss of Frame Block monitors the in-frame / out-of-frame status of the
Framer Block. A loss of frame (LOF) is declared when an out-of-frame (OOF)
condition persists for 3 ms. The LOF is cleared when an in-frame condition
persists for a period of 3 ms. To provide for intermittent out-of-frame (or in-frame)
conditions, the 3 ms timer is not reset to zero until an in-frame (or out-of-frame)
condition persists for 3 ms. The LOF and OOF signals are optionally reported on
the RALRM output pin when enabled by the LOFEB and OOFEN Receive Alarm
Control Register bits.
10.3 Receive Line Overhead Processor (RLOP)
The Receive Line Overhead Processor (RLOP) provides line level alarm and
performance monitoring.
10.3.1 Line RDI Detect
The Line RDI Detect Block detects the presence of Line Remote Defect
Indication (LRDI) in the receive stream. Line RDI is declared when a 110 binary
pattern is detected in bits 6, 7, and 8 of the K2 byte, for three or five consecutive
frames. Line RDI is removed when any pattern other than 110 is detected in bits
6, 7, and 8 of the K2 byte for three or five consecutive frames.The LRDI signal is
optionally reported on the RALRM output pin when enabled by the LRDIEN
Receive Alarm Control Register bit.
10.3.2 Line AIS Detect
The Line AIS Block detects the presence of a Line Alarm Indication Signal (LAIS)
in the receive stream. Line AIS is declared when a 111 binary pattern is detected
in bits 6, 7, and 8 of the K2 byte, for three or five consecutive frames. Line AIS is
removed when any pattern other than 111 is detected in bits 6, 7, and 8 of the K2
byte for three or five consecutive frames.The LAIS signal is optionally reported
on the RALRM output pin when enabled by the LAISEN Receive Alarm Control
Register bit.
10.3.3 Error Monitor Block
The Error Monitor Block calculates the received line BIP-8 error detection codes
based on the Line Overhead bytes and synchronous payload envelopes of the
STS-3c (STM-1) stream.The line BIP-8 code is a bit interleaved parity calculation
using even parity. Details are provided in the references.The calculated BIP-8
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codes are compared with the BIP-8 codes extracted from the following frame. Any
differences indicate that a line layer bit error has occurred. Optionally the RLOP
can be configured to count a maximum of only one BIP error per frame.
This block also extracts the line FEBE code from the third Z2 byte.The FEBE
code is contained in bits 2 to 8 of the Z2 byte, and represents the number of line
BIP-8 errors that were detected in the last frame by the far end.The FEBE code
value has 25 legal values (0 to 24) for an STS-3c (STM-1) stream. Illegal values
are interpreted as zero errors.
The Error Monitor Block accumulates B2 error events and FEBE events in two 20
bit saturating counter that can be read via the microprocessor interface. The
contents of these counters may be transferred to internal holding registers by
writing to any one of the counter addresses, or by using the TIP register bit
feature. During a transfer, the counter value is latched and the counter is reset to
0 (or 1, if there is an outstanding event). Note, these counters should be polled at
least once per second to avoid saturation.
The B2 error events counters optionally can be configured to accumulate only
"word" errors. A B2 word error is defined as the occurrence of one or more B2 bit
error events during a frame.The B2 error counter is incremented by one for each
frame in which a B2 word error occurs.
In addition the FEBE events counters optionally can be configured to accumulate
only "word" events. In STS-3c (STM-1) framing a FEBE word event is defined as
the occurrence of one or more FEBE bit events during a frame.The FEBE event
counter is incremented by one for each frame in which a FEBE event occurs.
10.4 The Receive APS, Synchronization Extractor and Bit Error Monitor (RASE)
10.4.1 Automatic Protection Switch Control
The Automatic Protection Switch (APS) control block filters and captures the
receive automatic protection switch channel bytes (K1 and K2) allowing them to
be read via the RASE APS K1 Register and the RASE APS K2 Register. The
bytes are filtered for three frames before being written to these registers. A
protection switching byte failure alarm is declared when twelve successive
frames have been received, where no three consecutive frames contain identical
K1 bytes. The protection switching byte failure alarm is removed upon detection
of three consecutive frames containing identical K1 bytes. The detection of
invalid APS codes is done in software by polling the RASE APS K1 Register and
the RASE APS K2 Register.
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10.4.2 Bit Error Rate Monitor
The Bit Error Monitor Block (BERM) calculates the received line BIP-24 error
detection code (B2) based on the line overhead and synchronous payload
envelope of the receive data stream. The line BIP-24 code is a bit interleaved
parity calculation using even parity. Details are provided in the references. The
calculated BIP code is compared with the BIP-24 code extracted from the B2
byte(s) of the following frame. Any differences indicate that a line layer bit error
has occurred. Up to 192000 (24 BIP/frame x 8000 frames/second) bit errors can
be detected per second for STS-3c (STM-1) rate.
The BERM accumulates these line layer bit errors in a 20 bit saturating counter
that can be read via the microprocessor interface. During a read, the counter
value is latched and the counter is reset to 0 (or 1, if there is an outstanding
event). Note, this counter should be polled at least once per second to avoid
saturation which in turn may result in missed bit error events.
The BERM block is able to simultaneously monitor for signal fail (SF) or signal
degrade (SD) threshold crossing and provide alarms through software interrupts.
The bit error rates associated with the SF or SD alarms are programmable over a
-3
-9
range of 10 to 10 . Details are provided in the Operations section.
In both declaring and clearing detection states, the accumulated BIP count is
continuously compared against the threshold.This allows to rapidly declare in the
presence of error bursts or error rates that significantly exceed the monitored
BER.This behavior allows meeting the ITU-T G.783 detection requirements at
various error rates (where the detection time is a function of the actual BER, for a
given monitored BER.
10.4.3 Synchronization Status Extraction
The Synchronization Status Extraction (SSE) Block extracts the synchronization
status (S1) byte from the line overhead.The SSE block can be configured to
capture the S1 nibble after three or after eight frames with the same value
(filtering turned on) or after any change in the value (filtering turned off).The S1
nibble can be read via the microprocessor interface.
Optionally, the SSE can be configured to perform filtering based on the whole S1
byte. Although this mode of operation is not standard, it might become useful in
the future.
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10.5 Receive Path Overhead Processor (RPOP)
The Receive Path Overhead Processor (RPOP) provides pointer interpretation,
extraction of path overhead, extraction of the synchronous payload envelope, and
path level alarm indication and performance monitoring.
10.5.1 Pointer Interpreter
The Pointer Interpreter interprets the incoming pointer (H1, H2) as specified in
the references. The pointer value is used to determine the location of the path
overhead (the J1 byte) in the incoming STS-3c (STM-1) stream. The algorithm
can be modeled by a finite state machine. Within the pointer interpretation
algorithm three states are defined as shown below:
NORM_state (NORM)
AIS_state (AIS)
LOP_state (LOP)
The transition between states will be consecutive events (indications), e.g., three
consecutive AIS indications to go from the NORM_state to the AIS_state. The
kind and number of consecutive indications activating a transition is chosen such
that the behavior is stable and insensitive to low BER. The only transition on a
single event is the one from the AIS_state to the NORM_state after receiving a
NDF enabled with a valid pointer value. It should be noted that, since the
algorithm only contains transitions based on consecutive indications, this implies
that, for example, non-consecutively received invalid indications do not activate
the transitions to the LOP_state.
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Figure 3: Pointer Interpretation State Diagram
3 x eq_new_point
inc_ind /
NDF_enable
dec_ind
NORM
3 x
eq_new_point
8 x
inv_point
8 x
3 x
3 x
AIS_ind
NDF_enable
eq_new_point
NDF_enable
3 x AIS_ind
8 x inv_point
LOP
AIS
The following table defines the events (indications) shown in the state diagram.
Table 1: Pointer Interpreter Event (Indications) Description
Event (Indication) Description
norm_point
disabled NDF + ss + offset value equal to active offset
NDF_enable
enabled NDF + ss + offset value in range of 0 to 782 or
enabled NDF + ss, if NDFPOR bit is set (Note that the
current pointer is not updated by an enabled NDF if the
pointer is out of range).
AIS_ind
inc_ind
H1 = 'hFF, H2 = 'hFF
disabled NDF + ss + majority of I bits inverted + no
majority of D bits inverted + previous NDF_enable, inc_ind
or dec_ind more than 3 frames ago
dec_ind
disabled NDF + ss + majority of D bits inverted + no
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majority of I bits inverted + previous NDF_enable, inc_ind
or dec_ind more than 3 frames ago
inv_point
not any of above (i.e., not norm_point, and not
NDF_enable, and not AIS_ind, and not inc_ind and not
dec_ind)
new_point
disabled_NDF + ss + offset value in range of 0 to 782 but
not equal to active offset
inc_req
dec_req
majority of I bits inverted + no majority of D bits inverted
majority of D bits inverted + no majority of I bits inverted
Note 1.-
Note 2 -
Note 3 -
Note 4 -
active offset is defined as the accepted current phase of the SPE
(VC) in the NORM_state and is undefined in the other states.
enabled NDF is defined as the following bit patterns: 1001, 0001,
1101, 1011, 1000.
disabled NDF is defined as the following bit patterns: 0110, 1110,
0010, 0100, 0111.
the remaining six NDF codes (0000, 0011, 0101, 1010, 1100, 1111)
result in an inv_point indication.
Note 5 -
Note 6 -
ss bits are unspecified in SONET and has bit pattern 10 in SDH
the use of ss bits in definition of indications may be optionally
disabled.
Note 7 -
the requirement for previous NDF_enable, inc_ind or dec_ind be
more than 3 frames ago may be optionally disabled.
Note 8 -
Note 9 -
new_point is also an inv_point.
LOP is not declared if all the following conditions exist:
• the received pointer is out of range (>782),
• the received pointer is static,
• the received pointer can be interpreted, according
to majority voting on the I and D bits, as a
positive or negative justification indication,
• after making the requested justification, the received
pointer continues to be interpretable as a
pointer justification.
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When the received pointer returns to an in-range value, the
S/UNI/QUAD will interpret it correctly.
Note 10 -
LOP will exit at the third frame of a three frame sequence consisting
of one frame with NDF enabled followed by two frames with NDF
disabled, if all three pointers have the same legal value.
The transitions indicated in the state diagram are defined in the following table.
Table 2: Pointer InterpreterTransition Description
Transition
Description
inc_ind/dec_ind
offset adjustment (increment or decrement indication)
3 x eq_new_point three consecutive equal new_point indications
NDF_enable
3 x AIS_ind
single NDF_enable indication
three consecutive AIS indications
eight consecutive inv_point indications
eight consecutive NDF_enable indications
8 x inv_point
8 x NDF_enable
Note 1 -
Note 2 -
Note 3 -
Note 4 -
the transitions from NORM_state to NORM_state do not represent
state changes but imply offset changes.
3 x new_point takes precedence over other events and if the
IINVCNT bit is set resets the inv_point count.
all three offset values received in 3 x eq_new_point must be
identical.
"consecutive event counters" are reset to zero on a change of state
except for consecutive NDF count.
The Pointer Interpreter detects loss of pointer (LOP) in the incoming STS-3c
(STM-1) stream. LOP is declared on entry to the LOP_state as a result of eight
consecutive invalid pointers or eight consecutive NDF enabled indications.The
alarm condition is reported in the receive alarm port and is optionally returned to
the source node by signaling the corresponding Transmit Path Overhead
Processor in the local S/UNI-QUAD to insert a path RDI indication.
The Pointer Interpreter detects path AIS in the incoming STS-3c (STM-1)
stream. PAIS is declared on entry to the AIS_state after three consecutive AIS
indications.The alarm condition reported in the receive alarm port and is
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optionally returned to the source node by signaling the corresponding Transmit
Path Overhead Processor in the local SONET/SDH equipment to insert a path
RDI indication.
Invalid pointer indications (inv_point), invalid NDF codes, new pointer indications
(new_point), discontinuous change of pointer alignment, and illegal pointer
changes are also detected and reported by the Pointer Interpreter block via
register bits. An invalid NDF code is any NDF code that does not match the NDF
enabled or NDF disabled definitions. The third occurrence of equal new_point
indications (3 x eq_new_point) is reported as a discontinuous change of pointer
alignment event (DISCOPA) instead of a new pointer event and the active offset
is updated with the receive pointer value. An illegal pointer change is defined as
a inc_ind or dec_ind indication that occurs within three frames of the previous
inc_ind, dec_ind or NDF_enable indications. Illegal pointer changes may be
optionally disabled via register bits.
The active offset value is used to extract the path overhead from the incoming
stream and can be read from an internal register.
10.5.2 SPETiming
The SPE Timing Block provides SPE timing information to the Error Monitor and
the Extract blocks. The block contains a free running timeslot counter that is
initialized by a J1 byte identifier (which identifies the first byte of the SPE).
Control signals are provided to the Error Monitor and the Extract blocks to identify
the Path Overhead bytes and to downstream circuitry to extract the ATM cell
payload.
10.5.3 Error Monitor
The Error Monitor Block contains two 16-bit counters that are used to accumulate
path BIP-8 errors (B3), and far end block errors (FEBEs).The contents of the two
counters may be transferred to holding registers, and the counters reset under
microprocessor control.
Path BIP-8 errors are detected by comparing the path BIP-8 byte (B3) extracted
from the current frame, to the path BIP-8 computed for the previous frame.
FEBEs are detected by extracting the 4-bit FEBE field from the path status byte
(G1). The legal range for the 4-bit field is between 0000 and 1000, representing
zero to eight errors. Any other value is interpreted as zero errors.
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Path RDI alarm is detected by extracting bit 5 of the path status byte. The PRDI
signal is set high when bit 5 is set high for five/ten consecutive frames. PRDI is
set low when bit 5 is low for five/ten consecutive frames. Auxiliary RDI alarm is
detected by extracting bit 6 of the path status byte. The Auxiliary RDI alarm is
indicated when bit 6 is set high for five/ten consecutive frames. The Auxiliary RDI
alarm is removed when bit 6 is low for five/ten consecutive frames. The
Enhanced RDI alarm is detected when the enhanced RDI code in bits 5,6,7 of
the path status byte indicates the same error codepoint for five/ten consecutive
frames. The Enhanced RDI alarm is removed when the enhanced RDI code in
bits 5,6,7 of the path status byte indicates the same non error codepoint for
five/ten consecutive frames. The ERDII maskable interrupt is set high when bits
5, 6 & 7 of the path status byte (G1) byte are set to a new codepoint for five or ten
consecutive frames.The ERDIV[2:0] signal reflects the state of the filtered ERDI
value (G1 byte bits 5, 6, & 7).
10.6 Receive ATM Cell Processor (RXCP)
The Receive ATM Cell Processor (RXCP) performs ATM cell delineation,
provides cell filtering based on idle/unassigned cell detection and HCS error
detection, and performs ATM cell payload de-scrambling. The RXCP also
provides a four cell deep receive FIFO. This FIFO is used to separate the STS-3c
(STM-1) line timing from the higher layer ATM system timing.
10.6.1 Cell Delineation
Cell Delineation is the process of framing to ATM cell boundaries using the
header check sequence (HCS) field found in the cell header. The HCS is a
CRC-8 calculation over the first 4 octets of the ATM cell header. When
performing delineation, correct HCS calculations are assumed to indicate cell
boundaries. Cells are assumed to be byte-aligned to the synchronous payload
envelope. The cell delineation algorithm searches the 53 possible cell boundary
candidates individually to determine the valid cell boundary location. While
searching for the cell boundary location, the cell delineation circuit is in the HUNT
state. When a correct HCS is found, the cell delineation state machine locks on
the particular cell boundary, corresponding to the correct HCS, and enters the
PRESYNC state. The PRESYNC state validates the cell boundary location. If
the cell boundary is invalid, an incorrect HCS will be received within the next
DELTA cells, at which time a transition back to the HUNT state is executed. If no
HCS errors are detected in this PRESYNC period, the SYNC state is entered.
While in the SYNC state, synchronization is maintained until ALPHA consecutive
incorrect HCS patterns are detected. In such an event a transition is made back
to the HUNT state. The state diagram of the delineation process is shown in
Figure 4.
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Figure 4: Cell Delineation State Diagram
correct HCS
(byte by byte)
HUNT
Incorrect HCS
(cell by cell)
PRESYNC
ALPHA
consecutive
incorrect HCS's
(cell by cell)
DELTA
SYNC
consecutive
correct HCS's
(cell by cell)
The values of ALPHA and DELTA determine the robustness of the delineation
process. ALPHA determines the robustness against false misalignments due to
bit errors. DELTA determines the robustness against false delineation in the
synchronization process. ALPHA is chosen to be 7 and DELTA is chosen to be 6.
These values result in an average time to delineation of 33.66 µs for the STS-3c
(STM-1) rate.
10.6.2 Descrambler
The self synchronous descrambler operates on the 48 byte cell payload only. The
43
circuitry descrambles the information field using the x + 1 polynomial. The
descrambler is disabled for the duration of the header and HCS fields and may
optionally be disabled for the payload.
10.6.3 Cell Filter and HCS Verification
Cells are filtered (or dropped) based on HCS errors and/or a cell header pattern.
Cell filtering is optional and is enabled through the RXCP registers. Cells are
passed to the receive FIFO while the cell delineation state machine is in the
SYNC state as described above. When both filtering and HCS checking are
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enabled, cells are dropped if uncorrectable HCS errors are detected, or if the
corrected header contents match the pattern contained in the RXCP Match
Header Pattern and RXCP Match Header Mask registers. Idle or unassigned cell
filtering is accomplished by writing the appropriate cell header pattern into the
RXCP Match Header Pattern and RXCP Match Header Mask registers.
Idle/Unassigned cells are assumed to contain the all zeros pattern in the VCI and
VPI fields. The RXCP Match Header Pattern and RXCP Match Header Mask
registers allow filtering control over the contents of the GFC, PTI, and CLP fields
of the header.
The HCS is a CRC-8 calculation over the first 4 octets of the ATM cell header.
8
2
The RXCP block verifies the received HCS using the polynomial, x + x + x + 1.
6
4
2
The coset polynomial, x + x + x + 1, is added (modulo 2) to the received HCS
octet before comparison with the calculated result. While the cell delineation
state machine (described above) is in the SYNC state, the HCS verification circuit
implements the state machine shown in Figure 5.
Figure 5: HCS Verification State Diagram
ATM DELINEATION
SYNC STATE
ALPHA
consecutive
incorrect HCS's
(To HUNT state)
Apparent Multi-Bit Error
(Drop Cell)
No Errors
CORRECTION
Detected
MODE
(Pass Cell)
Single-Bit Error
(Correct Error
Errors
Detected
and Pass Cell)
(Drop Cell)
DETECTION
MODE
No Errors Detected
DELTA
In M Cells
consecutive
(Pass Mth Cell)
correct HCS's
No Errors Detected
(From PRESYNC
state)
(Pass Cell)
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In normal operation, the HCS verification state machine remains in the
'Correction Mode' state. Incoming cells containing no HCS errors are passed to
the receive FIFO. Incoming single-bit errors are corrected, and the resulting cell
is passed to the FIFO. Upon detection of a single-bit error or a multi-bit error, the
state machine transitions to the 'Detection Mode' state. In this state,
programmable HCS error filtering is provided. The detection of any HCS error
causes the corresponding cell to be dropped. The state machine transitions back
to the 'Correction Mode' state when M (where M = 1, 2, 4, 8) cells are received
with correct HCSs. The Mth cell is not discarded.
10.6.4 Performance Monitor
The Performance Monitor consists of two 12-bit saturating HCS error event
counters and a 21-bit saturating receive cell counter. One of the counters
accumulates correctable HCS errors which are HCS single-bit errors detected
and corrected while the HCS Verification state machine is in the 'Correction
Mode' state. The second counter accumulates uncorrectable HCS errors which
are HCS bit errors detected while the HCS Verification state machine is in the
'Detection Mode' state or HCS bit errors detected but not corrected while the
state machine is in the 'Correction Mode' state. The 21-bit receive cell counter
counts all cells written into the receive FIFO. Filtered cells are not counted.
Each counter may be read through the microprocessor interface. Circuitry is
provided to latch these counters so that their values can be read while
simultaneously resetting the internal counters to 0 or 1, if appropriate, so that a
new period of accumulation can begin without loss of any events. It is intended
that the counter be polled at least once per second so as not to miss HCS error
events.
10.7 Transmit Line Interface (CSPI)
The Transmit Line Interface allows to directly interface the S/UNI-QUAD with
optical modules (ODLs) or other medium interfaces.This block performs clock
synthesis and performs parallel to serial conversion of the incoming outgoing
155.52 Mbit/s data stream.
10.7.1 Clock Synthesis
The transmit clock is synthesized from a 19.44 MHz reference. The transfer
function yields a typical low pass corner of 2.0 MHz above which reference jitter
is attenuated at 12 dB per octave. The design of the loop filter and PLL is
optimized for minimum intrinsic jitter. With a jitter free 19.44 MHz reference, the
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intrinsic jitter is typically less than 0.01 UI RMS when measured using a high
pass filter with a 12 kHz cutoff frequency.
The REFCLK reference should be within ±20 ppm to meet the SONET free-run
accuracy requirements specified in GR-253-CORE.
10.7.2 Parallel to Serial Converter
The Parallel to Serial Converter (PISO) converts the transmit byte serial stream
to a bit serial stream. Every self-timed channel (a self-timed channel is one that
uses the CSU output clock) share a common line rate clock and byte clock, which
can be output as TCLK. Only self-timed channels can be synchronized using the
TFPI input. When a channel is loop-timed, TCLK, TFPI and TFPI are no more
available and the receive signals shall be used instead to extract timing
information.
10.8 Transmit Section Overhead Processor (TSOP)
The Transmit Section Overhead Processor (TSOP) provides frame pattern
insertion (A1, A2), scrambling, section level alarm signal insertion, and section
BIP-8 (B1) insertion.
10.8.1 Line AIS Insert
Line AIS insertion results in all bits of the SONET/SDH frame being set to 1
before scrambling except for the section overhead. The Line AIS Insert Block
substitutes all ones as described when enabled through an internal register (Reg
0x14, TSOP) accessed through the microprocessor interface. Activation or
deactivation of line AIS insertion is synchronized to frame boundaries.
10.8.2 BIP-8 Insert
The BIP-8 Insert Block calculates and inserts the BIP-8 error detection code (B1)
into the transmit stream.
The BIP-8 calculation is based on the scrambled data of the complete STS-3c
(STM-1) frame. The section BIP-8 code is based on a bit interleaved parity
calculation using even parity. Details are provided in the references. The
calculated BIP-8 code is then inserted into the B1 byte of the following frame
before scrambling. BIP-8 errors may be continuously inserted under register
control for diagnostic purposes.
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10.8.3 Framing and Identity Insert
The Framing and Identity Insert Block inserts the framing bytes (A1, A2) into the
STS-3c (STM-1) frame. Framing bit errors may be continuously inserted under
register control for diagnostic purposes.
10.8.4 Scrambler
The Scrambler Block utilizes a frame synchronous scrambler to process the
transmit stream when enabled through an internal register accessed via the
7
6
microprocessor interface. The generating polynomial is x + x + 1. Precise
details of the scrambling operation are provided in the references. Note that the
framing bytes and the identity bytes are not scrambled. All zeros may be
continuously inserted (after scrambling) under register control for diagnostic
purposes.
10.9 Transmit Line Overhead Processor (TLOP)
The Transmit Line Overhead Processor (TLOP) provides line level alarm signal
insertion, and line BIP-24 insertion (B2).
10.9.1 APS Insert
The APS Insert Block inserts the two automatic protection switch (APS) channel
bytes in the Line Overhead (K1 and K2) into the transmit stream when enabled
by an internal register.
10.9.2 Line BIP Calculate
The Line BIP Calculate Block calculates the line BIP-24 error detection code (B2)
based on the line overhead and synchronous payload envelope of the transmit
stream. The line BIP-24 code is a bit interleaved parity calculation using even
parity. Details are provided in the references. The calculated BIP-24 code is
inserted into the B2 byte positions of the following frame. BIP-24 errors may be
continuously inserted under register control for diagnostic purposes.
10.9.3 Line RDI Insert
The Line RDI Insert Block controls the insertion of line remote defect indication.
Line RDI insertion is enabled using the TLRDI input, or register control. Line RDI
is inserted by transmitting the code 110 (binary) in bit positions 6, 7, and 8 of the
K2 byte contained in the transmit stream.
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10.9.4 Line FEBE Insert
The Line FEBE Insert Block accumulates line BIP-24 errors (B2) detected by the
Receive Line Overhead Processor and encodes far end block error indications in
the transmit M1 byte.
10.10 Transmit Path Overhead Processor (TPOP)
The Transmit Path Overhead Processor (TPOP) provides transport frame
alignment generation, pointer generation (H1, H2), path overhead insertion and
the insertion of path level alarm signals.
10.10.1
Pointer Generator
The Pointer Generator Block generates the outgoing payload pointer (H1, H2) as
specified in the references. The concatenation indication (the NDF field set to
1001, I-bits and D-bits set to all ones, and unused bits set to all zeros) is inserted
in the second and third pointer byte locations in the transmit stream.
• (1) A "normal pointer value" locates the start of the SPE. Note: 0 ≤ "normal
pointer value" ≤ 782, and the new data flag (NDF) field is set to 0110. Note
that values greater than 782 may be inserted, using internal registers, to
generate a loss of pointer alarm in downstream circuitry.
• (2) Arbitrary "pointer values" may be generated using internal registers.
These new values may optionally be accompanied by a programmable new
data flag. New data flags may also be generated independently using internal
registers.
• (3) Positive pointer movements may be generated using a bit in an internal
register. A positive pointer movement is generated by inverting the five I-bits
of the pointer word. The SPE is not inserted during the positive stuff
opportunity byte position, and the pointer value is incremented by one.
Positive pointer movements may be inserted once per frame for diagnostic
purposes.
• (4) Negative pointer movements may be generated using a bit in an internal
register. A negative pointer movement is generated by inverting the five D-bits
of the pointer word. The SPE is inserted during the negative stuff opportunity
byte position, the H3 byte, and the pointer value is decremented by one.
Negative pointer movements may be inserted once per frame for diagnostic
purposes.
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The pointer value is used to insert the path overhead into the transmit stream.
The current pointer value may be read via internal registers.
10.10.2
BIP-8 Calculate
The BIP-8 Calculate Block performs a path bit interleaved parity calculation on
the SPE of the transmit stream. Details are provided in the references. The
resulting parity byte is inserted in the path BIP-8 (B3) byte position of the
subsequent frame. BIP-8 errors may be continuously inserted under register
control for diagnostic purposes.
10.10.3
FEBE Calculate
The FEBE Calculate Block accumulates far end block errors on a per frame
basis, and inserts the accumulated value (up to maximum value of eight) in the
FEBE bit positions of the path status (G1) byte. The FEBE information is derived
from path BIP-8 errors detected by the receive path overhead processor, RPOP.
Far end block errors may be inserted under register control for diagnostic
purposes.
10.11 Transmit ATM Cell Processor (TXCP)
The Transmit ATM Cell Processor (TXCP) provides rate adaptation via
idle/unassigned cell insertion, provides HCS generation and insertion, and
performs ATM cell scrambling. The TXCP contains a four cell transmit FIFO. An
idle or unassigned cell is transmitted if a complete ATM cell has not been written
into the FIFO.
10.11.1
Idle/Unassigned Cell Generator
The Idle/Unassigned Cell Generator inserts idle or unassigned cells into the cell
stream when enabled. Registers are provided to program the GFC, PTI, and
CLP fields of the idle cell header and the idle cell payload. The idle cell HCS is
automatically calculated and inserted.
10.11.2
Scrambler
The Scrambler scrambles the 48 octet information field. Scrambling is performed
43
using a parallel implementation of the self synchronous scrambler (x + 1
polynomial) described in the references. The cell headers are transmitted
unscrambled, and the scrambler may optionally be disabled.
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S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
10.11.3
HCS Generator
The HCS Generator performs a CRC-8 calculation over the first four header
8 2
octets. A parallel implementation of the polynomial, x +x +x+1, is used. The
6 4 2
coset polynomial, x +x +x +1, is added (modulo 2) to the residue. The HCS
Generator optionally inserts the result into the fifth octet of the header.
10.12 UTOPIA Level 2 System Interface
The S/UNI-QUAD system interface provides a Utopia level 2 compliant bus to
transfer ATM cells between the ATM layer device and the S/UNI-QUAD.
10.12.1
Receive ATM Interface
The Receive ATM FIFO (RXCP) provides FIFO management at the S/UNI-QUAD
receive cell interface. The receive FIFO contains four cells. The FIFO provides
the cell rate decoupling function between the transmission system physical layer
and the ATM layer.
In general, the management functions include filling the receive FIFO, indicating
when the receive FIFO contains cells, maintaining the receive FIFO read and
write pointers, and detecting FIFO overrun and underrun conditions.
The FIFO interface is “UTOPIA Level 2" compliant and accepts a read clock
(RFCLK) and read enable signal (RENB). The receive FIFO output bus
(RDAT[15:0]) is tri-stated when RENB is logic one or if the PHY device address
(RADR[4:0]) selected does not match this device's address. The interface
indicates the start of a cell (RSOC) and the receive cell available status (RCA
and DRCA[4:1]) when data is read from the receive FIFO (using the rising edges
of RFCLK). The RCA (and DRCA[x]) status changes from available to
unavailable when the FIFO is either empty (RCALEVEL0=1) or near empty
(RCALEVEL0 is logic zero). This interface also indicates FIFO overruns via a
maskable interrupt and register bits. Read accesses while RCA (or DRCA[x]) is a
logic zero will output invalid data. The FIFO is reset on FIFO overrun, causing up
to 4 cells to be lost.
10.12.2
Transmit ATM Interface
The ATM Transmit FIFO (TXCP) provides FIFO management at the S/UNI-QUAD
transmit cell interface. The transmit FIFO contains four cells. The FIFO depth
may be programmed to four, three, two, or one cells. The FIFO provides the cell
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DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
rate decoupling function between the transmission system physical layer and the
ATM layer.
In general, the management functions include emptying cells from the transmit
FIFO, indicating when the transmit FIFO is full, maintaining the transmit FIFO
read and write pointers, and detecting a FIFO overrun condition.
The FIFO interface is “UTOPIA Level 2” compliant and accepts a write clock
(TFCLK), a write enable signal (TENB), the start of a cell (TSOC) indication, the
parity bit (TPRTY), and the ATM device address (TADR[4:0]) when data is written
to the transmit FIFO (using the rising edges of TFCLK). The interface provides
the transmit cell available status (TCA and DTCA[4:1]) which can transition from
"available" to "unavailable" when the transmit FIFO is near full (when
TCALEVEL0 is logic zero) or when the FIFO is full (when TCALEVEL0 is logic
one) and can accept no more writes. To reduce FIFO latency, the FIFO depth at
which TCA and DTCA[x] indicates "full" can be set to one, two, three or four cells
by the FIFODP[1:0] bits of TXCP Configuration 2 register. If the programmed
depth is less than four, more than one cell may be written after TCA or DTCA[x] is
asserted as the TXCP still allows four cells to be stored in its FIFO. This interface
also indicates FIFO overruns via a maskable interrupt and register bit, but write
accesses while TCA or DTCA[x] is logic zero are not processed. The TXCP
automatically transmits idle cells until a full cell is available to be transmitted.
10.13 JTAGTest Access Port
The JTAG Test Access Port block provides JTAG support for boundary scan. The
standard JTAG EXTEST, SAMPLE, BYPASS, IDCODE and STCTEST
instructions are supported. The S/UNI-QUAD identification code is 053490CD
hexadecimal.
10.14 Microprocessor Interface
The microprocessor interface block provides normal and test mode registers, and
the logic required to connect to the microprocessor interface. The normal mode
registers are required for normal operation, and test mode registers are used to
enhance the testability of the S/UNI-QUAD. The register set is accessed as
shown in Table 3. In the following section every register is documented and
identified using the register number (REG #).The corresponding memory map
address for every channel (CH #1,2,3,4) is given in the table. Addresses that are
not shown are not used and must be treated as Reserved.
Table 3: Register Memory Map
Address A[10:0]
Description
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DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
REG
#
CH
#1
CH
#2
CH
#3
CH
#4
00
01
02
03
04
05
000
001
002
003
004
005
S/UNI-QUAD Master Reset and Identity
S/UNI-QUAD Master Configuration
S/UNI-QUAD Master System Interface Config
S/UNI-QUAD Master Clock Monitor
S/UNI-QUAD Master Interrupt Status
105
205
305 S/UNI-QUAD Channel Reset and Performance
Monitoring Update
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
20
21
22
23
24
006
007
008
009
00A
00B
00C
00D
00E
00F
010
011
012
013
014
015
016
017
018
019
01A
01B
01C
01D
01E
01F
020
021
022
023
024
106
107
108
109
10A
10B
206
207
208
209
20A
20B
206 S/UNI-QUAD Channel Configuration
307 S/UNI-QUAD Channel Control
308 S/UNI-QUAD Channel Control Extensions
309 Reserved
30A S/UNI-QUAD Channel Interrupt Status 1
30B Reserved
CSPI Control and Status (Clock Synthesis)
Reserved
30E CRSI Control and Status (Clock Recovery)
30F Reserved
310 RSOP Control/Interrupt Enable
311 RSOP Status/Interrupt Status
312 RSOP Section BIP-8 LSB
313 RSOP Section BIP-8 MSB
314 TSOP Control
10E
10F
110
111
112
113
114
115
116
117
118
119
11A
11B
11C
11D
11E
11F
120
121
122
123
124
20E
20F
210
211
212
213
214
215
216
217
218
219
21A
21B
21C
21D
21E
21F
220
221
222
223
224
315 TSOP Diagnostic
316 Reserved
317 Reserved
318 RLOP Control/Status
319 RLOP Interrupt Enable/Status
31A RLOP Line BIP-24 LSB
31B RLOP Line BIP-24
31C RLOP Line BIP-24 MSB
31D RLOP Line FEBE LSB
31E RLOP Line FEBE
31F RLOP Line FEBE MSB
320 TLOP Control
321 TLOP Diagnostic
322 TLOP Transmit K1
323 TLOP Transmit K2
324 S/UNI-QUAD Channel Transmit Synchronization
Message (S1)
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Description
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
Address A[10:0]
REG
#
CH
#1
CH
#2
CH
#3
CH
#4
25
26
27
28
29
2A
2B
2C
2D
2E
2F
30
30
31
31
32
33
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
40
41
42
43
44
45
46
47
025
026
027
028
029
02A
02B
02C
02D
02E
02F
030
030
031
031
032
033
033
034
035
036
037
038
039
03A
03B
03C
03D
03E
03F
040
041
042
043
044
045
046
047
125
126
127
128
129
12A
12B
12C
12D
12E
12F
130
130
131
131
132
133
133
134
135
136
137
138
139
13A
13B
13C
13D
13E
13F
140
141
142
143
144
145
146
147
225
226
227
228
229
22A
22B
22C
22D
22E
22F
230
230
231
231
232
233
233
234
235
236
237
238
239
23A
23B
23C
23D
23E
23F
240
241
242
243
244
245
246
247
325 Reserved
326 Reserved
327 Reserved
Reserved
Reserved
Reserved
Reserved
328
329
32A
32B
32C Reserved
32D Reserved
32E Reserved
32F Reserved
330 RPOP Status/Control (EXTD=0)
330 RPOP Status/Control (EXTD=1)
331 RPOP Interrupt Status (EXTD=0)
331 RPOP Interrupt Status (EXTD=1)
332 RPOP Pointer Interrupt Status
333 RPOP Interrupt Enable (EXTD=0)
333 RPOP Interrupt Enable (EXTD=1)
334 RPOP Pointer Interrupt Enable
335 RPOP Pointer LSB
336 RPOP Pointer MSB and RDI Filter Control
337 RPOP Path Signal Label
338 RPOP Path BIP-8 LSB
339 RPOP Path BIP-8 MSB
33A RPOP Path FEBE LSB
33B RPOP Path FEBE MSB
33C RPOP Auxiliary RDI
33D RPOP Path BIP-8 Configuration
33E Reserved
33F Reserved
340 TPOP Control/Diagnostic
341 TPOP Pointer Control
342 Reserved
343 TPOP Current Pointer LSB
344 TPOP Current Pointer MSB
345 TPOP Arbitrary Pointer LSB
346 TPOP Arbitrary Pointer MSB
347 Reserved
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Description
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
Address A[10:0]
REG
#
CH
#1
CH
#2
CH
#3
CH
#4
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
5A
5B
5C
5D
5E
5F
60
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
048
049
04A
04B
04C
04D
04E
04F
050
051
052
053
054
055
056
057
058
059
05A
05B
05C
05D
05E
05F
060
061
062
063
064
065
066
067
068
069
06A
06B
06C
06D
148
149
14A
14B
14C
14D
14E
14F
150
151
152
153
154
155
156
157
158
159
15A
15B
15C
15D
15E
15F
160
161
162
163
164
165
166
167
168
169
16A
16B
16C
16D
248
249
24A
24B
24C
24D
24E
24F
250
251
252
253
254
255
256
257
258
259
25A
25B
25C
25D
25E
25F
260
261
262
263
264
265
266
267
268
269
26A
26B
26C
26D
348 TPOP Path Signal Label
349 TPOP Path Status
34A Reserved
34B Reserved
34C Reserved
34D Reserved
34E Reserved
34F Reserved
350 Reserved
351 Reserved
352 Reserved
353 Reserved
354 Reserved
355 Reserved
356 Reserved
357 Reserved
358 Reserved
359 Reserved
35A Reserved
35B Reserved
35C Reserved
35D Reserved
35E Reserved
35F Reserved
360 RXCP Configuration 1
361 RXCP Configuration 2
362 RXCP FIFO/UTOPIA Control & Config
363 RXCP Interrupt Enables and Counter Status
364 RXCP Status/Interrupt Status
365 RXCP LCD Count Threshold (MSB)
366 RXCP LCD Count Threshold (LSB)
367 RXCP Idle Cell Header Pattern
368 RXCP Idle Cell Header Mask
369 RXCP Corrected HCS Error Count
36A RXCP Uncorrected HCS Error Count
36B RXCP Received Cell Count LSB
36C RXCP Received Cell Count
36D RXCP Received Cell Count MSB
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Description
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
Address A[10:0]
REG
#
CH
#1
CH
#2
CH
#3
CH
#4
6E
6F
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
7D
7E
7F
80
81
82
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
90
91
92
06E
06F
070
071
072
073
074
075
076
077
078
079
07A
07B
07C
07D
07E
07F
080
081
082
083
084
085
086
087
088
089
08A
08B
08C
08D
08E
08F
090
091
092
16E
16F
170
171
172
173
174
175
176
177
178
179
17A
17B
17C
17D
17E
17F
180
181
182
183
184
185
186
187
188
189
18A
18B
18C
18D
18E
18F
190
191
192
26E
26F
270
271
272
273
274
275
276
277
278
279
27A
27B
27C
27D
27E
27F
280
281
282
283
284
285
286
287
288
289
28A
28B
28C
28D
28E
28F
290
291
292
36E RXCP Idle Cell Count LSB
36F RXCP Idle Cell Count
370 RXCP Idle Cell Count MSB
371 Reserved
372 Reserved
373 Reserved
374 Reserved
375 Reserved
376 Reserved
377 Reserved
378 Reserved
379 Reserved
37A Reserved
37B Reserved
37C Reserved
37D Reserved
37E Reserved
37F Reserved
380 TXCP Configuration 1
381 TXCP Configuration 2
382 TXCP Transmit Cell Status/Configuration Options
383 TXCP Interrupt Enable/Status
384 TXCP Idle Cell Header Control
385 TXCP Idle Cell Payload Control
386 TXCP Transmit Cell Counter LSB
387 TXCP Transmit Cell Counter
388 TXCP Transmit Cell Counter MSB
389 Reserved
38A Reserved
38B Reserved
38C Reserved
38D Reserved
38E Reserved
38F Reserved
S/UNI-QUAD Channel Auto Line RDI Control
S/UNI-QUAD Channel Auto Path RDI Control
S/UNI-QUAD Channel Auto Enhanced Path RDI
Control
390
391
392
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Description
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
Address A[10:0]
REG
#
CH
#1
CH
#2
CH
#3
CH
#4
S/UNI-QUAD Channel Receive RDI and Enhanced
RDI Control Extensions
93
093
193
293
393
S/UNI-QUAD Channel Receive Line AIS Control
S/UNI-QUAD Channel Receive Path AIS Control
396 S/UNI-QUAD Channel Receive Alarm Control #1
397 S/UNI-QUAD Channel Receive Alarm Control #2
94
95
96
97
094
095
096
097
194
195
196
197
294
295
296
297
394
395
98 - 098 - 198 - 298 - 398 - Reserved
0DF 1DF 2DF 3DF
DF
E0
E1
E2
E3
E4
E5
E6
E7
E8
E9
EA
EB
EC
ED
EE
EF
F0
F1
F2
F3
F4
F5
F6
F7
F8
F9
FA
FB
FC
FD
0E0
0E1
0E2
0E3
0E4
0E5
0E6
0E7
0E8
0E9
1E0
1E1
1E2
1E3
1E4
1E5
1E6
1E7
1E8
1E9
2E0
2E1
2E2
2E3
2E4
2E5
2E6
2E7
2E8
2E9
3E0 RASE Interrupt Enable
3E1 RASE Interrupt Status
3E2 RASE Configuration/Control
3E3 RASE SF BERM Accumulation Period (LSB)
3E4 RASE SF BERM Accumulation Period
3E5 RASE SF BERM Accumulation Period (MSB)
3E6 RASE SF BERM Saturation Threshold (LSB)
3E7 RASE SF BERM Saturation Threshold (MSB)
3E8 RASE SF BERM Declaring Threshold (LSB)
3E9 RASE SF BERM Declaring Threshold (MSB)
0EA 1EA 2EA 3EA RASE SF BERM Clearing Threshold (LSB)
0EB 1EB 2EB 3EB RASE SF BERM Clearing Threshold (MSB)
0EC 1EC 2EC 3EC RASE SD BERM Accumulation Period (LSB)
0ED 1ED 2ED 3ED RASE SD BERM Accumulation Period
0EE 1EE 2EE 3EE RASE SD BERM Accumulation Period (MSB)
0EF
0F0
0F1
0F2
0F3
0F4
0F5
0F6
0F7
0F8
0F9
0FA
0FB
1EF
1F0
1F1
1F2
1F3
1F4
1F5
1F6
1F7
1F8
1F9
1FA
1FB
2EF
2F0
2F1
2F2
2F3
2F4
2F5
2F6
2F7
2F8
2F9
2FA
2FB
3EF RASE SD BERM Saturation Threshold (LSB)
3F0 RASE SD BERM Saturation Threshold (MSB)
3F1 RASE SD BERM Declaring Threshold (LSB)
3F2 RASE SD BERM Declaring Threshold (MSB)
3F3 RASE SD BERM Clearing Threshold (LSB)
3F4 RASE SD BERM Clearing Threshold (MSB)
3F5 RASE APS K1
3F6 RASE APS K2
3F7 RASE Synchronization Status S1
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
3F8
3F9
3FA
3FB
0FC 1FC 2FC 3FC
0FD 1FD 2FD 3FD
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Description
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
Address A[10:0]
REG
#
CH
#1
CH
#2
CH
#3
CH
#4
Reserved
Reserved
S/UNI-QUAD Master Test Register
FE
FF
0FE
0FF
400
401
-
1FE
1FF
2FE
2FF
3FE
3FF
501
-
601
-
701 Reserved for Test
-
4FF
5FF
6FF
7FF
Notes on Register Memory Map:
For all register accesses, CSB must be low.
•
•
•
Addresses that are not shown must be treated as Reserved.
A[10] is the test resister select (TRS) and should be set to logic zero for
normal mode register access.
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DATASHEET
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
11 NORMAL MODE REGISTER DESCRIPTION
Normal mode registers are used to configure and monitor the operation of the
S/UNI-QUAD. Normal mode registers (as opposed to test mode registers) are
selected when TRS (A[10]) is low.
Notes on Normal Mode Register Bits:
1. Writing values into unused register bits has no effect. However, to ensure
software compatibility with future, feature-enhanced versions of the product,
unused register bits must be written with logic zero. Reading back unused
bits can produce either a logic one or a logic zero; hence, unused register bits
should be masked off by software when read.
2. All configuration bits that can be written into can also be read back. This
allows the processor controlling the S/UNI-QUAD to determine the
programming state of the block.
3. Writable normal mode register bits are cleared to logic zero upon reset unless
otherwise noted.
4. Writing into read-only normal mode register bit locations does not affect
S/UNI-QUAD operation unless otherwise noted. Performance monitoring
counters registers are a common exception.
5. Certain register bits are reserved. These bits are associated with megacell
functions that are unused in this application. To ensure that the S/UNI-QUAD
operates as intended, reserved register bits must be written with their default
value as indicated by the register bit description.
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DATASHEET
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x00: S/UNI-QUAD Master Reset and Identity
Bit
Type
R/W
R
R
R
R
R
R
R
Function
RESET
TYPE[3]
TYPE[2]
TYPE[1]
TYPE[0]
ID[2]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
1
1
1
0
0
0
1
ID[1]
ID[0]
This register allows the revision of the S/UNI-QUAD to be read by software
permitting graceful migration to support newer feature enhanced versions of the
S/UNI-QUAD. It also provides software reset capability.
In addition, writing to this register simultaneously loads all the performance meter
registers in the RSOP, RLOP, RPOP, RXCP and TXCP blocks.
ID[2:0]:
The ID bits can be read to provide a binary S/UNI-QUAD revision number.
TYPE[3:0]:
The TYPE bits distinguish the S/UNI-QUAD from the other members of the
S/UNI family of devices.
RESET:
The RESET bit allows the S/UNI-QUAD to be reset under software control. If
the RESET bit is a logic one, the entire S/UNI-QUAD is held in reset. This bit
is not self-clearing. Therefore, a logic zero must be written to bring the
S/UNI-QUAD out of reset. Holding the S/UNI-QUAD in a reset state places it
into a low power, stand-by mode. A hardware reset clears the RESET bit,
thus negating the software reset. Otherwise, the effect of a software reset is
equivalent to that of a hardware reset.
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PM5349 S/UNI-QUAD
S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x01: S/UNI-QUAD Master Configuration
Bit
Type
R/W
R/W
R/W TFPO_CH[1]
R/W TFPO_CH[0]
R/W
R/W
R/W
R/W
Function
PECLV
Reserved
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
1
1
Reserved
Reserved
Reserved
Reserved
TFPO_CH[1:0]:
The transmit frame pulse channel select (TFPO_CH[1:0]) bits selects which
channel’s transmit frame pulse is available on the TFPO output pin. Since the
RFPO1-4 output pins are providing transmit timing information for loop-timed
channels, it is suggested (but not mandatory) that a self-timed channel be
selected. Self-timed channels all operate off the same clock synthesis unit
and thus have a common timing reference (their frequency will be identical
although their frame pulses might not be aligned).
Table 5:TFPO Channel Selection
TFPO_CH[1:0]
00
Selected Channel
Channel #1
01
10
11
Channel #2
Channel #3
Channel #4
PECLV:
The PECL reveiver input voltage (PECLV) bit configures the PECL receiver
level shifter. When PECLV is set to logic zero, the PECL receivers are
configured to operate with a 3.3V input voltage. When PECLV is set to logic
one, the PECL receivers are configured to operate with a 5.0V input voltage.
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Reserved:
The reserved bits must be programmed to their default value proper
operation.
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Register 0x02: S/UNI-QUAD Master System Interface Control
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W PHY_ADR[2]
R/W PHY_ADR[1]
R/W PHY_ADR[0]
0
0
0
0
X
0
0
0
R/W
PHY_EN
Unused
R/W
R/W
R/W
Reserved
Reserved
Reserved
PHY_EN:
The PHY_EN enables the System Interface (Utopia bus).
When set to logic zero, all the output signals of the System Interface are held
in high impedance. When set to logic one, the System Interface is driven. This
register bit must be set to logic one to start using the device. If the System
Interface is shared by several PHY layer devices, they should all be
configured with their own unique PHY_ADR[2:0] (see below) value before
enabling them, otherwise conflicts could occur on the bus resulting in
damages to the devices.
PHY_ADR[2:0]:
The PHY_ADR[2:0] is Device Identification Address (PHY_ADR[2:0]). The
PHY_ADR[2:0] register bits are the most-significant bits of the address space
which this S/UNI-QUAD occupies. When the PHY_ADR[2:0] inputs match the
TADR[4:2] or RADR[4:2] inputs, then one of the four quadrants (as
determined by the TADR[1:0] or RADR[1:0] inputs) in this S/UNI-QUAD is
selected for transmit or receive operations. Note that the null-PHY address
0x1F is the null-PHY address and cannot be assigned to any port on the
S/UNI-QUAD.
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Register 0x03: S/UNI-QUAD Master Clock Monitor
Bit
Type
R
R
R
R
R
R
R
R
Function
RCLK4A
RCLK3A
RCLK2A
RCLK1A
TCLKA
RFCLKA
TFCLKA
REFCLKA
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
This register provides activity monitoring on S/UNI-QUAD clocks. When a
monitored clock signal makes a low to high transition, the corresponding register
bit is set high. The bit will remain high until this register is read, at which point, all
the bits in this register are cleared. A lack of transitions is indicated by the
corresponding register bit reading low. This register should be read at periodic
intervals to detect clock failures.
REFCLKA:
The REFCLK active (REFCLKA) bit monitors for low to high transitions on the
REFCLK reference clock input. REFCLKA is set high on a rising edge of
REFCLK, and is set low when this register is read.
TFCLKA:
The TFCLK active (TFCLKA) bit monitors for low to high transitions on the
TFCLK transmit FIFO clock input. TFCLKA is set high on a rising edge of
TFCLK, and is set low when this register is read.
RFCLKA:
The RFCLK active (RFCLKA) bit monitors for low to high transitions on the
RFCLK receive FIFO clock input. RFCLKA is set high on a rising edge of
RFCLK, and is set low when this register is read.
TCLKA:
The TCLK active (TCLKA) bit monitors for low to high transitions on the TCLK
output. TCLKA is set high on a rising edge of TCLK, and is set low when this
register is read.
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RCLK1A:
The Channel #1 RCLK active (RCLK1A) bit monitors for low to high transitions
on the RCLK1 output. RCLK1A is set high on a rising edge of RCLK1, and is
set low when this register is read.
RCLK2A:
The Channel #2 RCLK active (RCLK2A) bit monitors for low to high transitions
on the RCLK2 output. RCLK2A is set high on a rising edge of RCLK2, and is
set low when this register is read.
RCLK3A:
The Channel #3 RCLK active (RCLK3A) bit monitors for low to high transitions
on the RCLK3 output. RCLK3A is set high on a rising edge of RCLK3, and is
set low when this register is read.
RCLK4A:
The Channel #4 RCLK active (RCLK4A) bit monitors for low to high transitions
on the RCLK4 output. RCLK4A is set high on a rising edge of RCLK4, and is
set low when this register is read.
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Register 0x04: S/UNI-QUAD Master Interrupt Status
Bit
Type
Function
Unused
Unused
Unused
CSUI
CHNL4I
CHNL3I
CHNL2I
CHNL1I
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
R
When the interrupt output INTB goes low, this register allows the source of an
active interrupt to be identified down to the channel level. Further register
accesses are required for the channel in question to determine the cause of an
active interrupt and to acknowledge the interrupt source.
CHNL1I:
The CHNL1I bit is high when an interrupt request is active from the channel
#1. The Channel #1 Interrupt Status register should be read to identify the
source of the interrupt.
CHNL2I:
The CHNL2I bit is high when an interrupt request is active from the channel
#2. The Channel #2 Interrupt Status register should be read to identify the
source of the interrupt.
CHNL3I:
The CHNL3I bit is high when an interrupt request is active from the channel
#3. The Channel #3 Interrupt Status register should be read to identify the
source of the interrupt.
CHNL4I:
The CHNL4I bit is high when an interrupt request is active from the channel
#4. The Channel #4 Interrupt Status register should be read to identify the
source of the interrupt.
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CSUI:
The CSUI bit is high when an interrupt request is active from the Clock
Synthesis and PISO block (CSPI, Clock Synthesis Unit). The CSUI interrupt
sources are enabled in the Clock Synthesis Interrupt Control/Status Register.
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Register 0x05: S/UNI-QUAD Channel Reset and Monitoring Update
Bit
Type
R/W
Function
CHRESET
Unused
Unused
Unused
Unused
Unused
Unused
TIP
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
X
X
X
X
X
X
X
R
This register provides software reset capability on a per channel basis. It also
loads, by writing this register (without setting the CHRESET bit), all the error
counters in the RSOP, RLOP, RPOP, RXCP and TXCP blocks.
TIP:
The TIP bit is set to a logic one when any value with the CHRESET bit set to
logic zero is written to this register. Such a write initiates an accumulation
interval transfer and loads all the performance meter registers in the RSOP,
RLOP, RPOP, RXCP and TXCP blocks for channel #1. TIP remains high while
the transfer is in progress, and is set to a logic zero when the transfer is
complete. TIP can be polled by a microprocessor to determine when the
accumulation interval transfer is complete.
CHRESET:
The CHRESET bit allows the Channel to be reset under software control. If
the CHRESET bit is a logic one, the entire channel is held in reset. This bit is
not self-clearing. Therefore, a logic zero must be written to bring the channel
out of reset. Holding a channel in a reset state places it into a low power,
stand-by mode. A hardware reset clears the CHRESET bit, thus negating the
software reset. Otherwise, the effect of a software reset is equivalent to that
of a hardware reset.
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Register 0x06: S/UNI-QUAD Channel Configuration
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W AUTOPFEBE
R/W AUTOLFEBE
1
1
1
1
0
0
0
1
R/W
R/W
R/W
R/W
R/W
R/W
AUTOLRDI
AUTOPRDI
Reserved
Reserved
Reserved
Reserved
AUTOPRDI
The AUTOPRDI bit determines whether STS path remote defect indication
(RDI) is sent immediately upon detection of an incoming alarm. When
AUTOPRDI is set to logic one, STS path RDI is inserted immediately upon
declaration of several alarms. Each alarm can individually be enabled and
disabled using the S/UNI-QUAD Channel Path RDI Control Registers.
AUTOLRDI
The AUTOLRDI bit determines if line remote defect indication (RDI) is sent
immediately upon detection of an incoming alarm. When AUTOLRDI is set to
logic one, line RDI is inserted immediately upon declaration of several
alarms. Each alarm can individually be enabled and disabled using the S/UNI-
QUAD Channel Line RDI Control Registers.
AUTOPFEBE
The AUTOPFEBE bit determines if the path far end block errors are sent upon
detection of an incoming path BIP error events. When AUTOPFEBE is set to
logic one, one path FEBE is inserted for each path BIP error event,
respectively. When AUTOPFEBE is set to logic zero, incoming path BIP error
events do not generate FEBE events.
AUTOLFEBE
The AUTOLFEBE bit determines if line far end block errors are sent upon
detection of an incoming line BIP error events. When AUTOLFEBE is set to
logic one, one line FEBE is inserted for each line BIP error event, respectively.
When AUTOLFEBE is set to logic zero, incoming line BIP error events do not
generate FEBE events.
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Register 0x07: S/UNI-QUAD Channel Control
Bit
Type
R/W
R/W
R/W
Function
TFPI_EN
Reserved
RXDINV
Unused
PDLE
LLE
SDLE
LOOPT
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
X
0
0
0
0
R/W
R/W
R/W
R/W
This register controls the timing and high speed loopback features of the
S/UNI-QUAD.
LOOPT:
The LOOPT bit selects the source of timing for the transmit section of the
channel. When LOOPT is a logic zero, the transmitter timing is derived from
input REFCLK (Clock Synthesis Unit) is used. When LOOPT is a logic one,
the transmitter timing is derived from the recovered clock. (Clock Recovery
Unit).
SDLE:
The SDLE bit enables the serial diagnostic loopback. When SDLE is a logic
one, the transmit serial stream is connected to the receive stream. The SDLE
and the LLE bits should not be set high simultaneously.
LLE:
The LLE bit enables the S/UNI-QUAD line loopback. When LLE is a logic
one, the value on RXD+/- differential inputs is synchronously mapped to the
TXD+/- differential outputs, after clock recovery. The SDLE and the LLE bits
should not be set high simultaneously.
PDLE:
The PDLE bit enables the parallel diagnostic loopback. When PDLE is a logic
one, the transmit parallel stream is connected to the receive stream. The
loopback point is between the TPOP and the RPOP blocks. Blocks upstream
of the loopback point continue to operate normally. For example line AIS may
be inserted in the transmit stream upstream of the loopback point using the
TSOP Control register.
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RXDINV:
The RXDINV bit selects the active polarity of the RXD+/- signals. The default
configuration selects RXD+ to be active high and RXD- to be active low.
When RXDINV is set to logic one, RXD+ to be active low and RXD- to be
active high.
TFPI_EN:
The TFPI_EN bit controls the framing alignment in the transmit direction.
When TFPI_EN is set to logic one the transmit SONET/SDH framing is
aligned to a master (available to all four channels) framing pulse counter,
which can also be aligned to the TFPI device input.When TFPI_EN is set to
logic zero the transmit framing alignment is arbitrary. External framing
(TFPI_EN set to logic one) shall only be used when the channel is in self-
timed mode.TFPI_EN should always be set to logic zero when the channel is
loop-timed (LOOPT set to logic one) or in line loopback (LLE set to logic one).
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Register 0x08: S/UNI-QUAD Channel Control Extension
Bit
Type
Function
Unused
Unused
Unused
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
0
Unused
R/W
R/W
R/W
Reserved
Reserved
Reserved
0
0
This register controls the timing and high speed loopback features of the
S/UNI-QUAD.
Reserved:
The reserved bits must be programmed to their default value proper
operation.
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Register 0x0A: S/UNI-QUAD Channel Interrupt Status #1
Bit
Type
Function
Unused
RASEI
CRUI
TXCPI
RXCPI
RPOPI
RLOPI
RSOPI
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
R
R
R
This register allows the source of an active interrupt to be identified down to the
block level within a given channel. Further register accesses are required for the
block in question to determine the cause of an active interrupt and to
acknowledge the interrupt source.
RSOPI:
The RSOPI bit is high when an interrupt request is active from the RSOP
block. The RSOP interrupt sources are enabled in the RSOP Control/Interrupt
Enable Register.
RLOPI:
The RLOPI bit is high when an interrupt request is active from the RLOP
block. The RLOP interrupt sources are enabled in the RLOP Interrupt
Enable/Status Register.
RPOPI:
The RPOPI bit is high when an interrupt request is active from the RPOP
block. The RPOP interrupt sources are enabled in the RPOP Interrupt Enable
Register.
RXCPI:
The RXCPI bit is high when an interrupt request is active from the RXCP
block. The RXCP interrupt sources are enabled in the RXCP Interrupt
Enable/Status Register.
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TXCPI:
The TXCPI bit is high when an interrupt request is active from the TXCP
block. The TXCP interrupt sources are enabled in the TXCP Interrupt
Control/Status Register.
CRUI:
The CRUI bit is high when an interrupt request is active from the Clock
Recovery and SIPO block (CRSI, Clock Recovery Unit). The CRUI interrupt
sources are enabled in the Clock Recovery Interrupt Control/Status Register.
RASEI:
The RASEI bit is high when an interrupt request is active from the RASE
block. The RASE interrupt sources are enabled in the RASE Interrupt Enable
Register.
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Register 0x0C: CSPI (Clock Synthesis) Control and Status
Bit
Type
R/W
R/W
R
Function
Reserved
Reserved
TROOLI
Unused
TROOLV
Unused
TROOLE
Reserved
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
X
X
X
X
0
R
R/W
R/W
0
This register controls the clock synthesis and reports the state of the transmit
phase locked loop.
TROOLE:
The TROOLE bit is an interrupt enable for the transmit reference out of lock
status. When TROOLE is set to logic one, an interrupt is generated when the
TROOLV bit changes state.
TROOLV:
The transmit reference out of lock status indicates the clock synthesis phase
locked loop is unable to lock to the reference on REFCLK. TROOLV is a logic
one if the divided down synthesized clock frequency is not within 488 ppm of
the REFCLK frequency.
TROOLI:
The TROOLI bit is the transmit reference out of lock interrupt status bit.
TROOLI is set high when the TROOLV bit of the S/UNI-QUAD Clock
Synthesis Control and Status register changes state. TROOLV indicates the
clock synthesis phase locked loop is unable to lock to the reference on
REFCLK and is a logic one if the divided down synthesized clock frequency is
not within 488 ppm of the REFCLK frequency. TROOLI is cleared when this
register is read.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x0D: CSPI (Clock Synthesis) Reserved
Bit
Type
Function
Unused
Unused
Unused
Unused
Reserved
Reserved
Reserved
Reserved
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
0
0
0
0
R/W
R/W
R/W
R/W
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x0E: CRSI (Clock Recovery) Control and Status
Bit
Type
R/W
R
R
R
Function
Reserved
RROOLI
RDOOLI
RROOLV
RDOOLV
RROOLE
RDOOLE
Reserved
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
X
X
X
X
0
R
R/W
R/W
R/W
0
0
This register controls the clock recovery and reports the state of the receive
phase locked loop.
RDOOLE:
The RDOOLE bit is an interrupt enable for the receive data out of lock status.
When RDOOLE is set to logic one, an interrupt is generated when the
RDOOLV bit changes state.
RROOLE:
The RROOLE bit is an interrupt enable for the reference out of lock status.
When RROOLE is set to logic one, an interrupt is generated when the
RROOLV bit changes state.
RDOOLV:
The receive data out of lock status indicates the clock recovery phase locked
loop is unable to lock to the incoming data stream. RDOOLV is a logic one if
the divided down recovered clock frequency is not within 488 ppm of the
REFCLK frequency or if no transitions have occurred on the RXD+/- inputs for
more than 80 bit periods.
RROOLV:
The receive reference out of lock status indicates the clock recovery phase
locked loop is unable to lock to the receive reference (REFCLK). RROOLV
should be polled after a power up reset to determine when the CRU PLL is
operational. When RROOLV is a logic one, the CRU is unable to lock to the
receive reference. When RROOLV is a logic zero, the CRU is locked to the
receive reference. The RROOLV bit may remain set at logic one for several
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SATURN USER NETWORK INTERFACE (155-QUAD)
hundred milliseconds after the removal of the power on reset as the CRU PLL
locks to the receive reference clock.
RDOOLI:
The RDOOLI bit is the receive data out of lock interrupt status bit. RDOOLI is
set high when the RDOOLV bit of the S/UNI-QUAD Clock Recovery Control
and Status register changes state. RDOOLI is cleared when this register is
read.
RROOLI:
The RROOLI bit is the receive reference out of lock interrupt status bit.
RROOLI is set high when the RROOLV bit of the Clock Synthesis Control and
Status register changes state. RROOLI is cleared when this register is read.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x0F: CRSI (Clock Recovery) Reserved
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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DATASHEET
PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x10: RSOP Control/Interrupt Enable
Bit
Type
R/W
R/W
W
R/W
R/W
R/W
R/W
R/W
Function
BIPWORD
DDS
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
X
0
0
0
0
0
FOOF
ALGO2
BIPEE
LOSE
LOFE
OOFE
OOFE:
The OOFE bit is an interrupt enable for the out of frame alarm. When OOFE
is set to logic one, an interrupt is generated when the out of frame alarm
changes state.
LOFE:
The LOFE bit is an interrupt enable for the loss of frame alarm. When LOFE
is set to logic one, an interrupt is generated when the loss of frame alarm
changes state.
LOSE:
The LOSE bit is an interrupt enable for the loss of signal alarm. When LOSE
is set to logic one, an interrupt is generated when the loss of signal alarm
changes state.
BIPEE:
The BIPEE bit is an interrupt enable for the section BIP-8 errors. When
BIPEE is set to logic one, an interrupt is generated when a section BIP-8 error
(B1) is detected.
ALGO2:
The ALGO2 bit position selects the framing algorithm used to confirm and
maintain the frame alignment. When a logic one is written to the ALGO2 bit
position, the framer is enabled to use the second of the framing algorithms
where only the first A1 framing byte and the first 4 bits of the last A2 framing
byte (12 bits total) are examined. This algorithm examines only 12 bits of the
framing pattern regardless of the STS mode; all other framing bits are
ignored. When a logic zero is written to the ALGO2 bit position, the framer is
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PMC-971239
ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
enabled to use the first of the framing algorithms where all the A1 framing
bytes and all the A2 framing bytes are examined. This algorithm examines all
48 bits of the STS-3c (STM-1/AU3/AU4) framing pattern.
FOOF:
The FOOF bit controls the framing of the RSOP. When a logic one is written
to FOOF, the RSOP is forced out of frame at the next frame boundary. The
FOOF bit is a write only bit, register reads may yield a logic one or a logic
zero.
DDS:
The DDS bit is set to logic one to disable the de-scrambling of the STS-3c
(STM-1) stream. When DDS is a logic zero, de-scrambling is enabled.
BIPWORD:
The BIPWORD bit position enables the accumulating of section block BIP
errors. When a logic one is written to the BIPWORD bit position, one or more
errors in the BIP-8 byte result in a single error accumulated in the B1 error
counter. When a logic zero is written to the BIPWORD bit position, all errors
in the B1 byte are accumulated in the B1 error counter.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x11: RSOP Status/Interrupt Status
Bit
Type
Function
Unused
BIPEI
LOSI
LOFI
OOFI
LOSV
LOFV
OOFV
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
R
R
R
OOFV:
The OOFV bit is read to determine the out-of-frame state of the RSOP. When
OOFV is high, the RSOP is out of frame. When OOFV is low, the RSOP is in-
frame.
LOFV:
The LOFV bit is read to determine the loss of frame state of the RSOP. When
LOFV is high, the RSOP has declared loss of frame.
LOSV:
The LOSV bit is read to determine the loss of signal state of the RSOP. When
LOSV is high, the RSOP has declared loss of signal.
OOFI:
The OOFI bit is the out of frame interrupt status bit. OOFI is set high when a
change in the out-of-frame state occurs. This bit is cleared when this register
is read.
LOFI:
The LOFI bit is the loss of frame interrupt status bit. LOFI is set high when a
change in the loss-of-frame state occurs. This bit is cleared when this register
is read.
LOSI:
The LOSI bit is the loss of signal interrupt status bit. LOSI is set high when a
change in the loss-of-signal state occurs. This bit is cleared when this register
is read.
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
BIPEI:
The BIPEI bit is the section BIP-8 interrupt status bit. BIPEI is set high when
a section layer (B1) bit error is detected. This bit is cleared when this register
is read.
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x12: RSOP Section BIP-8 LSB
Bit
Type
R
R
R
R
R
R
R
R
Function
SBE[7]
SBE[6]
SBE[5]
SBE[4]
SBE[3]
SBE[2]
SBE[1]
SBE[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x13: RSOP Section BIP-8 MSB
Bit
Type
R
R
R
R
R
R
R
R
Function
SBE[15]
SBE[14]
SBE[13]
SBE[12]
SBE[11]
SBE[10]
SBE[9]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
SBE[8]
SBE[15:0]:
Bits SBE[15:0] represent the number of section BIP-8 errors (individual or
block) that have been detected since the last time the error count was polled.
The error count is polled by writing to either of the RSOP Section BIP-8
Register addresses. Such a write transfers the internally accumulated error
count to the Section BIP-8 registers within approximately 7 µs and
simultaneously resets the internal counter to begin a new cycle of error
accumulation. This transfer and reset is carried out in a manner that ensures
that coincident events are not lost.
The count can also be polled by writing to the Master Reset and Identity /
Load Performance Meters register (0x05). Writing to register 0x05
simultaneously loads all the performance meter registers in the RSOP, RLOP,
RPOP, RXCP and TXCP blocks.
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x14:TSOP Control
Bit
Type
Function
Unused
DS
Reserved
Reserved
Reserved
Reserved
Reserved
LAIS
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LAIS:
The LAIS bit controls the insertion of line alarm indication signal (AIS). When
LAIS is set to logic one, the TSOP inserts AIS into the transmit SONET/SDH
stream. Activation or deactivation of line AIS insertion is synchronized to
frame boundaries. Line AIS insertion results in all bits of the SONET/SDH
frame being set to one prior to scrambling except for the section overhead.
DS:
The DS bit is set to logic one to disable the scrambling of the STS-3c (STM-1)
stream. When DS is a logic zero, scrambling is enabled.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x15:TSOP Diagnostic
Bit
Type
Function
Unused
Unused
Unused
Unused
Unused
DLOS
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
0
R/W
R/W
R/W
DBIP8
DFP
0
0
DFP:
The DFP bit controls the insertion of a single bit error continuously in the most
significant bit (bit 1) of the A1 section overhead framing byte. When DFP is
set to logic one, the A1 bytes are set to 0x76 instead of 0xF6.
DBIP8:
The DBIP8 bit controls the insertion of bit errors continuously in the section
BIP-8 byte (B1). When DBIP8 is set to logic one, the B1 byte is inverted.
DLOS:
The DLOS bit controls the insertion of all zeros in the transmit stream. When
DLOS is set to logic one, the transmit stream is forced to 0x00.
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x18: RLOP Control/Status
Bit
Type
R/W
R/W
R/W
R/W
R/W BIPWORDO
R/W FEBEWORD
R
R
Function
BIPWORD
ALLONES
AISDET
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
X
X
LRDIDET
LAISV
LRDIV
LRDIV:
The LRDIV bit is read to determine the remote defect indication state of the
RLOP. When LRDIV is high, the RLOP has declared line RDI.
LAISV:
The LAISV bit is read to determine the line AIS state of the RLOP. When
LAISV is high, the RLOP has declared line AIS.
FEBEWORD:
The FEBEWORD bit controls the accumulation of FEBEs. When
FEBEWORD is logic one, the FEBE event counter is incremented only once
per frame, whenever one or more FEBE bits occur during that frame. When
FEBEWORD is logic zero, the FEBE event counter is incremented for each
and every FEBE bit that occurs during that frame (the counter can be
incremented up to 24).
BIPWORDO:
The BIPWORDO bit controls the indication of B2 errors reported to the TLOP
block for insertion as FEBEs. When BIPWORDO is logic one, the BIP errors
are indicated once per frame whenever one or more B2 bit errors occur
during that frame. When BIPWORD0 is logic zero, BIP errors are indicated
once for every B2 bit error that occurs during that frame. The accumulation of
B2 error events functions independently and is controlled by the BIPWORD
register bit..
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
LRDIDET:
The LRDIDET bit determines the Line LRDI detection algorithm. When
LRDIDET is set to logic one, Line LRDI is declared when a 110 binary pattern
is detected in bits 6,7 and 8 of the K2 byte for three consecutive frames.
When LRDIDET is set to logic zero, Line LRDI is declared when a 110 binary
pattern is detected in bits 6,7 and 8 of the K2 byte for five consecutive frames.
AISDET:
The AISDET bit determines the Line AIS detection algorithm. When AISDET
is set to logic one, Line AIS is declared when a 111 binary pattern is detected
in bits 6,7 and 8 of the K2 byte for three consecutive frames. When AISDET
is set to logic zero, Line AIS is declared when a 111 binary pattern is detected
in bits 6,7 and 8 of the K2 byte for five consecutive frames.
ALLONES:
The ALLONES bit controls automatically forcing the SONET frame passed to
downstream blocks to logical all-ones whenever LAIS is detected. When
ALLONES is set to logic one, the SONET frame is forced to logic one
immediately when the LAIS alarm is declared. When LAIS is removed, the
received byte is immediately returned to carrying data. When ALLONES is
set to logic zero, the received byte carries the data regardless of the state of
LAIS.
BIPWORD:
The BIPWORD bit controls the accumulation of B2 errors. When BIPWORD
is logic one, the B2 error event counter is incremented only once per frame
whenever one or more B2 bit errors occur during that frame. When
BIPWORD is logic zero, the B2 error event counter is incremented for each
B2 bit error that occurs during that frame (the counter can be incremented up
to 24 times per frame).
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x19: RLOP Interrupt Enable/Interrupt Status
Bit
Type
R/W
R/W
R/W
R/W
R
R
R
R
Function
FEBEE
BIPEE
LAISE
LRDIE
FEBEI
BIPEI
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
X
X
X
X
LAISI
LRDII
LRDII:
The LRDII bit is the line far end receive failure interrupt status bit. LRDII is set
high when a change in the line RDI state occurs. This bit is cleared when this
register is read.
LAISI:
The LAISI bit is the line AIS interrupt status bit. LAISI is set high when a
change in the line AIS state occurs. This bit is cleared when this register is
read.
BIPEI:
The BIPEI bit is the line BIP interrupt status bit. BIPEI is set high when a line
layer (B2) bit error is detected. This bit is cleared when this register is read.
FEBEI:
The FEBEI bit is the line far end block error interrupt status bit. FEBEI is set
high when a line layer FEBE (M1) is detected. This bit is cleared when this
register is read.
LRDIE:
The LRDIE bit is an interrupt enable for the line remote defect indication
alarm. When LRDIE is set to logic one, an interrupt is generated when line
RDI changes state.
LAISE:
The LAISE bit is an interrupt enable for line AIS. When LAISE is set to logic
one, an interrupt is generated when line AIS changes state.
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SATURN USER NETWORK INTERFACE (155-QUAD)
BIPEE:
The BIPEE bit is an interrupt enable for the line BIP-24 errors. When BIPEE
is set to logic one, an interrupt is generated when a line BIP-24 error (B2) is
detected.
FEBEE:
The FEBEE bit is an interrupt enable for the line far end block errors. When
FEBEE is set to logic one, an interrupt is generated when FEBE (M1) is
detected.
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ISSUE 6
SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x1A: RLOP Line BIP-24 LSB
Bit
Type
R
R
R
R
R
R
R
R
Function
LBE[7]
LBE[6]
LBE[5]
LBE[4]
LBE[3]
LBE[2]
LBE[1]
LBE[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x1B: RLOP Line BIP-24
Bit
Type
R
R
R
R
R
R
R
R
Function
LBE[15]
LBE[14]
LBE[13]
LBE[12]
LBE[11]
LBE[10]
LBE[9]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
LBE[8]
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SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x1C: RLOP Line BIP-24 MSB
Bit
Type
Function
Unused
Unused
Unused
Unused
LBE[19]
LBE[18]
LBE[17]
LBE[16]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
LBE[19:0]
Bits LBE[19:0] represent the number of line BIP-24 errors (individual or block)
that have been detected since the last time the error count was polled. The
error count is polled by writing to any of the RLOP Line BIP Registers or Line
FEBE Register addresses. Such a write transfers the internally accumulated
error count to the Line BIP Registers within approximately 7 µs and
simultaneously resets the internal counter to begin a new cycle of error
accumulation.
The count can also be polled by writing to the
S/UNI-QUAD Channel Reset
. Writing to register 0x05 simultaneously
and Monitoring Update register (0x05)
loads all the performance meter registers in the RSOP, RLOP, RPOP, RXCP
and TXCP blocks.
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Register 0x1D: RLOP Line FEBE LSB
Bit
Type
R
R
R
R
R
R
R
R
Function
LFE[7]
LFE[6]
LFE[5]
LFE[4]
LFE[3]
LFE[2]
LFE[1]
LFE[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x1E: RLOP Line FEBE
Bit
Type
R
R
R
R
R
R
R
R
Function
LFE[15]
LFE[14]
LFE[13]
LFE[12]
LFE[11]
LFE[10]
LFE[9]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
LFE[8]
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Register 0x1F: RLOP Line FEBE MSB
Bit
Type
Function
Unused
Unused
Unused
Unused
LFE[19]
LFE[18]
LFE[17]
LFE[16]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
LFE[19:0]
Bits LFE[19:0] represent the number of line FEBE errors (individual or block)
that have been detected since the last time the error count was polled. The
error count is polled by writing to any of the RLOP Line BIP Registers or Line
FEBE Register addresses. Such a write transfers the internally accumulated
error count to the Line FEBE Registers within approximately 7 µs and
simultaneously resets the internal counter to begin a new cycle of error
accumulation.
The count can also be polled by writing to the
S/UNI-QUAD Channel Reset
. Writing to register 0x05 simultaneously
and Monitoring Update register (0x05)
loads all the performance meter registers in the RSOP, RLOP, RPOP, RXCP
and TXCP blocks.
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Register 0x20:TLOP Control
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
Reserved
Reserved
APSREG
Reserved
Reserved
Reserved
Reserved
LRDI
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
LRDI:
The LRDI bit controls the insertion of line far end receive failure (LRDI). When
LRDI is set to logic one, the TLOP inserts line RDI into the transmit
SONET/SDH stream. Line RDI is inserted by transmitting the code 110 in bit
positions 6, 7 and 8 of the K2 byte of the transmit stream.
APSREG:
The APSREG bit selects the source for the transmit APS channel. When
APSREG is a logic zero, 0x0000 hexadecimal is inserted in the transmit APS
channel. When APSREG is a logic one, the transmit APS channel is inserted
from the TLOP Transmit K1 Register and the TLOP Transmit K2 Register.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x21:TLOP Diagnostic
Bit
Type
Function
Unused
Unused
Unused
Unused
Unused
Unused
Unused
DBIP
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
0
R/W
DBIP:
The DBIP bit controls the insertion of bit errors continuously in the line
BIP byte(s) (B2). When DBIP is set to logic one, the B2 byte(s) are inverted.
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Register 0x22:TLOPTransmit K1
Bit
Type
Function
K1[7]
K1[6]
K1[5]
K1[4]
K1[3]
K1[2]
K1[1]
K1[0]
Default
Bit 7 R/W
Bit 6 R/W
Bit 5 R/W
Bit 4 R/W
Bit 3 R/W
Bit 2 R/W
Bit 1 R/W
Bit 0 R/W
0
0
0
0
0
0
0
0
K1[7:0]:
The K1[7:0] bits contain the value inserted in the K1 byte when the APSREG
bit in the TLOP Control Register is a logic one. K1[7] is the most significant
bit, corresponding to the first bit (bit 1) transmitted. K1[0] is the least
significant bit, corresponding to the last bit (bit 8) transmitted. The bits in this
register are double buffered so that register writes do not need to be
synchronized to SONET/SDH frame boundaries. The insertion of a new APS
code value is initiated by a write to this register. The contents of this register,
and the TLOP Transmit K2 Register are inserted in the transmit stream
starting at the next frame boundary. Successive writes to this register must
be spaced at least two frames (250 µs) apart.
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Register 0x23:TLOPTransmit K2
Bit
Type
Function
K2[7]
K2[6]
K2[5]
K2[4]
K2[3]
K2[2]
K2[1]
K2[0]
Default
Bit 7 R/W
Bit 6 R/W
Bit 5 R/W
Bit 4 R/W
Bit 3 R/W
Bit 2 R/W
Bit 1 R/W
Bit 0 R/W
0
0
0
0
0
0
0
0
K2[7:0]:
The K2[7:0] bits contain the value inserted in the K2 byte when the APSREG
bit in the TLOP Control Register is a logic one. K2[7] is the most significant
bit, corresponding to the first bit (bit 1) transmitted. K2[0] is the least
significant bit, corresponding to the last bit (bit 8) transmitted. The bits in this
register are double buffered so that register writes do not need to be
synchronized to SONET/SDH frame boundaries. The insertion of a new APS
code value is initiated by a write to the TLOP Transmit K1 Register. A
coherent APS code value is ensured by writing the desired K2 APS code
value to this register before writing the TLOP Transmit K1 Register.
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Register 0x24: S/UNI-QUAD ChannelTransmit Sync. Message (S1)
Bit
Type
Function
Reserved
Reserved
Reserved
Reserved
TS1[3]
TS1[2]
TS1[1]
TS1[0]
Default
Bit 7 R/W
Bit 6 R/W
Bit 5 R/W
Bit 4 R/W
Bit 3 R/W
Bit 2 R/W
Bit 1 R/W
Bit 0 R/W
0
0
0
0
0
0
0
0
TS1[3:0]:
The value written to these bit positions is inserted in the first S1 byte position
of the transmit stream. The S1 byte is used to carry synchronization status
messages between line terminating network elements. TS1[3] is the most
significant bit, corresponding to the first bit transmitted. TS1[0] is the least
significant bit, corresponding to the last bit transmitted.
Reserved
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x30 (EXTD=0): RPOP Status/Control
Bit
Type
R/W
R
R
R
R
R
R
R/W
Function
Reserved
LOPCONV
LOPV
PAISONV
PAISV
PRDIV
NEWPTRI
NEWPTRE
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
X
X
X
X
X
X
0
NOTE:To facilitate additional register mapping, shadow registers have been
added to registers 0x30, 0x31 and 0x33.These shadow registers are accessed in
the same way as the normal registers.
The EXTD (extend register) bit must be set in register 0x36 to allow switching
between accessing the normal registers and the shadow registers.
This register allows the status of path level alarms to be monitored.
NEWPTRE:
The NEWPTRE bit is the interrupt enable for the receive new pointer status.
When NEWPTRE is a logic one, an interrupt is generated when the pointer
interpreter validates a new pointer.
NEWPTRI:
The NEWPTRI bit is the receive new pointer interrupt status bit. NEWPTRI is
a logic one when the pointer interpreter has validated a new pointer value
(H1, H2). NEWPTRI is cleared when this register is read.
PRDIV:
The PRDIV bit is read to determine the remote defect indication state. When
PRDIV is a logic one, the S/UNI-QUAD has declared path RDI.
PAISV:
The PAISV bit is read to determine the path AIS state. When PAISV is a logic
one, the S/UNI-QUAD has declared path AIS.
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PAISCONV:
The PAISCONV bit is read to determine the concatenation path AIS state.
When PAISCONV is a logic one, the S/UNI-QUAD has declared a
concatenation path AIS.
PLOPV:
The PLOPV bit is read to determine the loss of pointer state. When PLOPV is
a logic one, the S/UNI-QUAD has declared LOP.
LOPCONV:
The LOPCONV bit is read to determine the loss of pointer concatenation
state. When LOPCONV is a logic one, the S/UNI-QUAD has declared loss of
pointer concatenation.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x30 (EXTD=1): RPOP Status/Control
Bit
Type
R/W
R/W
R/W
R/W
Function
Reserved
IINVCNT
PSL5
Reserved
Unused
ERDIV[2]
ERDIV[1]
ERDIV[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
X
X
X
X
R
R
R
NOTE:To facilitate additional register mapping, shadow registers have been
added to registers 0x30, 0x31 and 0x33.These shadow registers are accessed in
the same way as the normal registers.
The EXTD (extend register) bit must be set in register 0x36 to allow switching
between accessing the normal registers and the shadow registers.
The Status Register is provided at RPOP read address 0, if the extend register
(EXTD) bit is set in register 0x36.
ERDIV[2:0]:
The ERDIV[2:0] bits reflect the current state of the detected enhanced RDI,
(filtered G1 bits 5, 6, and 7).
IINVCNT:
When a logic one is written to the IINVCNT (Intuitive Invalid Pointer Counter)
bit, if in the LOP state 3 x new point resets the inv_point count. If this bit is set
to 0 the inv_point count will not be reset if in the LOP state and 3 x new
pointers are detected.
PSL5:
The PSL5 bit controls the filtering of the path signal label byte (C2). When
PSL5 is set high, the PSL is updated when the same value is received for 5
consecutive frames. When the PSL5 is set low, the PSL is updated when the
same value is received for 3 consecutive frames.
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Register 0x31 (EXTD=0): RPOP Interrupt Status
Bit
Type
R
Function
PSLI
Unused
LOPI
Unused
PAISI
PRDII
BIPEI
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
R
FEBEI
NOTE:To facilitate additional register mapping, shadow registers have been
added to registers 0x30, 0x31 and 0x33.These shadow registers are accessed in
the same way as the normal registers.
The EXTD (extend register) bit must be set in register 0x36 to allow switching
between accessing the normal registers and the shadow registers.
This register allows identification and acknowledgment of path level alarm and
error event interrupts.
FEBEI:
The FEBEI bit is the path FEBE interrupt status bit. FEBEI is a logic one
when a FEBE error is detected. This bit is cleared when this register is read.
BIPEI:
The BIPEI bit is the path BIP-8 interrupt status bit. BIPEI is a logic one when
a B3 error is detected. This bit is cleared when this register is read.
PRDII:
The PRDII bit is the path remote defect indication interrupt status bit. PRDII is
a logic one when a change in the path RDI state or the auxiliary path RDI
state occurs. This bit is cleared when this register is read.
PAISI:
The PAISI bit is the path alarm indication signal interrupt status bit. PAISI is a
logic one when a change in the path AIS state occurs. This bit is cleared
when this register is read.
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LOPI:
The LOPI bit is the loss of pointer interrupt status bit. LOPI is a logic one
when a change in the LOP state occurs. This bit is cleared when this register
is read.
PSLI:
The PSLI bit is the change of path signal label interrupt status bit. PSLI is a
logic one when a change is detected in the path signal label register. The
current path signal label can be read from the RPOP Path Signal Label
register. This bit is cleared when this register is read.
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Register 0x31 (EXTD=1): RPOP Interrupt Status
Bit
Type
Function
Unused
Unused
Unused
Unused
Unused
Unused
Unused
ERDII
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
NOTE:To facilitate additional register mapping, shadow registers have been
added to registers 0x30, 0x31 and 0x33.These shadow registers are accessed in
the same way as the normal registers.
The EXTD (extend register) bit must be set in register 0x36 to allow switching
between accessing the normal registers and the shadow registers
This register allows identification and acknowledgment of path level alarm and
error event interrupts.
ERDII:
The ERDII bit is set to logic one when a change is detected in the received
enhanced RDI state. ERDII is cleared when the RPOP Interrupt Status
register is read.
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Register 0x32: RPOP Pointer Interrupt Status
Bit
Type
R
Function
ILLJREQI
Unused
DISCOPAI
INVNDFI
ILLPTRI
NSEI
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
R
R
PSEI
NDFI
This register allows identification and acknowledgment of pointer event interrupts.
NDFI:
The NDFI bit is the new data flag interrupt status bit. NDFI is set to a logic
one when the NDF field is active in the received pointer (H1, H2). This bit is
cleared when this register is read.
PSEI:
The PSEI bit is the positive stuff event interrupt status bit. PSEI is a logic one
when a positive stuff event is detected in the received pointer (H1, H2). This
bit is cleared when this register is read.
NSEI:
The NSEI bit is the negative stuff event interrupt status bit. NSEI is a logic
one when a negative stuff event is detected in the received pointer (H1, H2).
This bit is cleared when this register is read.
ILLPTRI:
The ILLPTRI bit is the illegal pointer interrupt status bit. ILLPTRI is a logic
one when an illegal pointer value is detected. This bit is cleared when this
register is read.
INVNDFI:
The INVNDFI bit is the illegal new data field value interrupt status bit.
INVNDFI is a logic one when an illegal NDF field value is detected in the
receive payload pointer. An illegal NDF field is any one of the following six
values: 0x0, 0x3, 0x5, 0xA, 0xC, and 0xF. This bit is cleared when this register
is read.
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DISCOPAI:
The DISCOPAI bit is the discontinuous change of pointer interrupt status bit.
DISCOPAI is a logic one when a new pointer value is validated without an
accompanying NDF indication. This bit is cleared when this register is read.
ILLJREQI:
The ILLJREQI bit is the illegal justification request interrupt status bit.
ILLJREQI is a logic one when the pointer interpreter detects an illegal pointer
justification request event. This bit is cleared when this register is read.
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Register 0x33 (EXTD=0): RPOP Interrupt Enable
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
PSLE
Reserved
LOPE
Reserved
PAISE
PRDIE
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
BIPEE
FEBEE
NOTE:To facilitate additional register mapping, shadow registers have been
added to registers 0x30, 0x31 and 0x33.These shadow registers are accessed in
the same way as the normal registers.
The EXTD (extend register) bit must be set in register 0x36 to allow switching
between accessing the normal registers and the shadow registers
This register allows interrupt generation to be enabled for path level alarm and
error events.
FEBEE:
The FEBEE bit is the interrupt enable for path FEBEs. When FEBEE is a
logic one, an interrupt is generated when a path FEBE is detected.
BIPEE:
The BIPEE bit is the interrupt enable for path BIP-8 errors. When BIPEE is a
logic one, an interrupt is generated when a B3 error is detected.
PRDIE:
The PRDIE bit is the interrupt enable for path RDI. When PRDIE is a logic
one, an interrupt is generated when the path RDI state changes.
PAISE:
The PAISE bit is the interrupt enable for path AIS. When PAISE is a logic one,
an interrupt is generated when the path AIS state changes.
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LOPE:
The LOPE bit is the interrupt enable for LOP. When LOPE is a logic one, an
interrupt is generated when the LOP state changes.
PSLE:
The PSLE bit is the interrupt enable for changes in the received path signal
label. When PSLE is a logic one, an interrupt is generated when the received
C2 byte changes.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x33 (EXTD=1): RPOP Interrupt Enable
Bit
Type
Function
Unused
Unused
Unused
Unused
Unused
Unused
Unused
ERDIE
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
0
R/W
NOTE:To facilitate additional register mapping, shadow registers have been
added to registers 0x30, 0x31 and 0x33.These shadow registers are accessed in
the same way as the normal registers.
The EXTD (extend register) bit must be set in register 0x36 to allow switching
between accessing the normal registers and the shadow registers
This register allows interrupt generation to be enabled for path level alarm and
error events.
ERDIE:
When EREDIE is a logic one, an interrupt is generated when a path
Enhanced RDI is detected.
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Register 0x34: RPOP Pointer Interrupt Enable
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
ILLJREQE
Reserved
DISCOPAE
INVNDFE
ILLPTRE
NSEE
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
PSEE
NDFE
This register is used to enable pointer event interrupts.
NDFE:
When a logic one is written to the NDFE interrupt enable bit position, a
change in active offset due to the reception of an enabled NDF (NDF_enabled
indication) will activate the interrupt out, INTB.
PSEE:
When a logic one is written to the PSEE interrupt enable bit position, a
positive pointer adjustment event will active the interrupt output, INTB.
NSEE:
When a logic one is written to the NSEE interrupt enable bit position, a
negative pointer adjustment event will activate the interrupt output, INTB.
ILLPTRE:
When a logic one is written to the ILLPTRE interrupt enable bit position, an
illegal pointer will activate the interrupt output, INTB.
INVNDFE:
When a logic one is written to the INVNDFE interrupt enable bit position, an
invalid NDF code will activate the interrupt output, INTB.
DISCOPAE:
When a logic one is written to the DISCOPAE interrupt enable bit position, a
change of pointer alignment event will activate the interrupt output, INTB.
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ILLJREQE:
When a logic one is written tot he ILLJREQE interrupt enable bit position, an
illegal pointer justification request will activate the interrupt output, INTB.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x35: RPOP Pointer LSB
Bit
Type
R
R
R
R
R
R
R
R
Function
PTR[7]
PTR[6]
PTR[5]
PTR[4]
PTR[3]
PTR[2]
PTR[1]
PTR[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
PTR[7:0]:
The PTR[7:0] bits contain the eight LSBs of the current pointer value that is
interpreted from the H1 and H2 bytes. The NDFI, NSEI and PSEI bits of the
RPOP Pointer Interrupt Status register should be read before and after
reading this register to ensure that the pointer value did not change during the
register read.
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Register 0x36: RPOP Pointer MSB and RDI Filter Control
Bit
Type
R/W
R/W
R/W
Function
NDFPOR
EXTD
RDI10
Unused
S1
S0
PTR[9]
PTR[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
X
X
X
X
X
R
R
R
R
PTR[9:8]:
The PTR[9:8] bits contain the two MSBs of the current pointer value that is
interpreted from the H1 and H2 bytes. The NDFI, NSEI and PSEI bits of the
RPOP Pointer Interrupt Status register should be read before and after
reading this register to ensure that the pointer value did not change during the
register read.
S0, S1:
The S0 and S1 bits contain the two S bits received in the last H1 byte. These
bits should be software debounced by reading this register at least twice.
RDI10:
The RDI10 bit controls the filtering of the remote defect indication and the
auxiliary remote defect indication. When RDI10 is a logic one, the PRDI and
APRDI status is updated when the same value is received in the
corresponding bit of the G1 byte for ten consecutive frames. When RDI10 is a
logic zero, the PRDI and APRDI status is updated when the same value is
received for five consecutive frames.
NDFPOR:
The NDFPOR (new data flag pointer outside range) bit allows an NDF counter
enable, if the pointer value is outside the range (0-782). If this bit is set to logic
one the definition for NDF counter enable is enabled NDF + ss. If this bit is set
to logic zero the definition for NDF counter enable is enabled NDF + ss +
offset in the range of 0 to 782. Note that this bit only allows the NDF counter
to count towards LOP when the pointer is out of range, no active offset
change will occur.
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EXTD:
The EXTD bit extends the registers to facilitate additional mapping. If this bit is
set to logic one the register mapping, for registers 0x30, 0x31 and 0x33, are
extended.
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Register 0x37: RPOP Path Signal Label
Bit
Type
R
R
R
R
R
R
R
R
Function
PSL[7]
PSL[6]
PSL[5]
PSL[4]
PSL[3]
PSL[2]
PSL[1]
PSL[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
PSL[7:0]:
The PSL[7:0] bits contain the path signal label byte (C2). The value in this
register is updated to a new path signal label value if the same new value is
observed for three or five consecutive frames, depending on the status of the
PSL5 bit.
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Register 0x38: RPOP Path BIP-8 LSB
Bit
Type
R
R
R
R
R
R
R
R
Function
PBE[7]
PBE[6]
PBE[5]
PBE[4]
PBE[3]
PBE[2]
PBE[1]
PBE[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x39: RPOP Path BIP-8 MSB
Bit
Type
R
R
R
R
R
R
R
R
Function
PBE[15]
PBE[14]
PBE[13]
PBE[12]
PBE[11]
PBE[10]
PBE[9]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
PBE[8]
PBE[15:0]:
PBE[15:0] represent the number of B3 errors (individual or block) that have
been detected since the last time the error count was polled. The error count
is polled by writing to either of the RPOP Path BIP-8 Register addresses or to
either of the RPOP Path FEBE Register addresses. Such a write transfers
the internally accumulated error count to the Path BIP-8 registers within a
maximum of 7 µs and simultaneously resets the internal counter to begin a
new cycle of error accumulation. This transfer and reset is carried out in a
manner that ensures that coincident events are not lost.
The count can also be polled by writing to the S/UNI-QUAD Channel Reset
and Monitoring Update register (0x05).
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Register 0x3A: RPOP Path FEBE LSB
Bit
Type
R
R
R
R
R
R
R
R
Function
PFE[7]
PFE[6]
PFE[5]
PFE[4]
PFE[3]
PFE[2]
PFE[1]
PFE[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x3B: RPOP Path FEBE MSB
Bit
Type
R
R
R
R
R
R
R
R
Function
PFE[15]
PFE[14]
PFE[13]
PFE[12]
PFE[11]
PFE[10]
PFE[9]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
PFE[8]
These registers allow path FEBEs to be accumulated.
PFE[15:0]:
PFE[15:0] represent the number of path FEBE errors (G1) that have been
detected since the last time the error count was polled. The error count is
polled by writing to either of the RPOP Path BIP-8 Register addresses or to
either of the RPOP Path FEBE Register addresses. Such a write transfers
the internally accumulated error count to the Path FEBE Registers within a
maximum of 7 µs and simultaneously resets the internal counter to begin a
new cycle of error accumulation. This transfer and reset is carried out in a
manner that ensures that coincident events are not lost.
The count can also be polled by writing to the S/UNI-QUAD Channel Reset
and Monitoring Update register (0x05).
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Register 0x3C: RPOP Auxiliary RDI
Bit
Type
Function
Unused
Unused
Reserved
BLKFEBE
Unused
Reserved
APRDIE
APRDIV
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
0
0
X
0
0
X
R/W
R/W
R/W
R/W
R
APRDIE:
The APRDIE bit is the interrupt enable for auxiliary path RDI. When APRDIE
is a logic one, an interrupt is generated when the auxiliary path RDI state
changes.
APRDIV:
The APRDIV bit is read to determine the auxiliary path RDI state. When
APRDIV is a logic one, the S/UNI-QUAD has declared auxiliary path RDI.
BLKFEBE:
When set to logic one, the block FEBE bitg (BLKFEBE) causes path FEBE
errors to be reported and accumulated on a block basis. A single path FEBE
error is accumulated for a block if the received FEBE code for that block is
between 1 and 8 inclusive. When BLKFEBE is set low, path FEBE errors are
accumulated on an error basis.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x3D: RPOP Error Event Control
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SOS
ENSS
BLKBIP
Reserved
BLKBIPO
Reserved
Reserved
Reserved
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
This register contains error event control bits.
BLKBIPO:
When BLKBIPO is a logic one, path FEBE indications are generated on a
block basis. A single FEBE is transmitted if one or more path B3 error
indications are detected per frame. When BLKBIPO is a logic zero, the
transmitted FEBE indicates the number of B3 errors detected (between 0 and
8 errors per frame).
BLKBIP:
When BLKBIP is a logic one, B3 errors are reported and accumulated on a
block basis. A single B3 error is accumulated and reported to the TPOP if one
or more B3 errors are detected per frame. When BLKBIP is a logic zero, each
B3 error is accumulated and reported.
ENSS:
The ENSS bit controls whether the SS bits in the payload pointer are included
in the pointer interpreter state machine. When ENSS is a logic one, an
incorrect SS bit pattern causes the pointer interpreter to enter the LOP (loss
of pointer) state and prevents a new pointer indication. When ENSS is a logic
zero, the SS bits are ignored by the pointer interpreter.
SOS:
The SOS controls the spacing between consecutive pointer justification
events in the receive stream. When SOS is a logic one, the definition of
inc_ind and dec_ind indications includes the requirement that active offset
changes have occurred at least three frames ago. When SOS is a logic zero,
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pointer justification indications in the receive stream are followed without
regard to the proximity of previous active offset changes.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x40:TPOP Control/Diagnostic
Bit
Type
Function
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
EPRDIEN
EPRDISRC
PERSIST
Reserved
Reserved
DBIP8
Reserved
This register allows insertion of path level alarms and diagnostic signals.
DBIP8:
The DBIP8 bit controls the insertion of bit errors continuously in the B3 byte.
When DBIP8 is a logic one, the B3 byte is inverted.
PERSIST
The path far end receive failure alarm persistence bit (PERSIST) controls the
persistence of the RDI asserted into the transmit stream. When PERSIST is a
logic one, the RDI code inserted into the transmit stream as a result of
consequential actions is asserted for a minimum of 20 frames in non-enhanced
RDI mode, or the last valid RDI code before an idle code (idle codes are when
bits 5,6,7 are 000, 001, or 011) is asserted for 20 frames in enhanced RDI mode.
When PERSIST is logic zero, the transmit RDI code changes immediately based
on received alarm conditions.
EPRDISRC
The enhanced path receive defect indication alarm source bit (EPRDISRC)
controls the source of RDI input to be inserted onto the G1 byte.. When
EPRDIEN is logic zero, the extended RDI bits of the G1 byte not overwritten
by the TPOP block, regardless of EPRDISRC.When EPRDIEN is logic one
and EPRDISCR is logic zero, the extended RDI bits of the G1 byte, bits 6 and
7, are inserted according to the value in the G1[1:0] register bits (register
0x49). When EPRDIEN is logic one and EPRDISCR is logic one, the value
register 0x49 G1[1:0] is ignored and the EPRDI bits in the G1 byte are set
according to the setting of the Channel Auto Enhanced Path RDI Control
registers (0x92 and 0x93).
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EPRDIEN
The enhanced path receive defect indication alarm enable bit (EPRDIEN)
controls the use of 3-bit RDI mode. When EPRDIEN is set to logic 0, the basic
path RDI scheme is used and only G1[5] is used to indicate PRDI. When
EPRDIEN is set to logic 1, the enhanced path RDI scheme is used and the
three G1[7:5] bits are used to indicate PRDI. The actual three bit code will be
controlled according to the EPRDISRC.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x41:TPOP Pointer Control
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
Reserved
FTPTR
SOS
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
PLD
NDF
NSE
PSE
Reserved
This register allows control over the transmitted payload pointer for diagnostic
purposes.
PSE:
The PSE bit controls the insertion of positive pointer movements. A logic zero
to logic one transition on this bit enables the insertion of a single positive
pointer justification in the transmit stream. This register bit is automatically
cleared when the pointer movement is inserted.
NSE:
The NSE bit controls the insertion of negative pointer movements. A logic
zero to logic one transition on this bit enables the insertion of a single
negative pointer justification in the transmit stream. This register bit is
automatically cleared when the pointer movement is inserted.
NDF:
The NDF bit controls the insertion of new data flags in the inserted payload
pointer. When a logic one is written to this bit position, the pattern contained
in the NDF[3:0] bit positions in the TPOP Arbitrary Pointer MSB Register is
inserted continuously in the payload pointer. When a logic zero is written to
this bit position, the normal pattern (0110) is inserted in the payload pointer.
PLD:
The PLD bit controls the loading of the pointer value contained in the TPOP
Arbitrary Pointer Registers. Normally the TPOP Arbitrary Pointer Registers
are written to set up the arbitrary new pointer value, the S-bit values, and the
NDF pattern. A logic one is then written to this bit position to load the new
pointer value. The new data flag bit positions are set to the programmed NDF
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pattern for the first frame; subsequent frames have the new data flag bit
positions set to the normal pattern (0110) unless the NDF bit described above
is set to a logic one. This bit is automatically cleared after the new payload
pointer is loaded.
Note: When loading an out of range pointer (that is a pointer with a value
greater than 782), the TPOP continues to operate with timing based on the
last valid pointer value. The out of range pointer value is inserted in the
transmit stream. Although a valid SPE will continue to be generated, it is
unlikely to be extracted by downstream circuitry which should be in a loss of
pointer state.
SOS:
The SOS bit controls the stuff opportunity spacing between consecutive SPE
positive or negative stuff events. When SOS is a logic zero, stuff events may
be generated every frame as controlled by the PSE and NSE register bits
described above. When SOS is a logic one, stuff events may be generated at
a maximum rate of once every four frames.
FTPTR:
The force transient pointer bit (FTPTR) enables the insertion of the pointer
value contained in the Arbitrary Pointer Registers into the transmit stream for
diagnostic purposes. When FTPTR is a logic one, the APTR[9:0] bits of the
Arbitrary Pointer Registers are inserted into the H1 and H2 bytes of the
transmit stream. At least one corrupted pointer is guaranteed to be sent.
When FTPTR is a logic zero, the pointer value in the Current Pointer registers
is inserted in the transmit stream.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x43:TPOP Current Pointer LSB
Bit
Type
R
R
R
R
R
R
R
R
Function
CPTR[7]
CPTR[6]
CPTR[5]
CPTR[4]
CPTR[3]
CPTR[2]
CPTR[1]
CPTR[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
CPTR[7:0]:
The CPTR[7:0] bits, along with the CPTR[9:8] bits in the TPOP Current
Pointer MSB Register reflect the value of the current payload pointer being
inserted in the transmit stream. The value may be changed by loading a new
pointer value using the TPOP Arbitrary Pointer LSB and MSB Registers, or by
inserting positive and negative pointer movements using the PSE and NSE
register bits.
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Register 0x44:TPOP Current Pointer MSB
Bit
Type
Function
Unused
Unused
Unused
Unused
Unused
Unused
CPTR[9]
CPTR[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
CPTR[9:8]:
The CPTR[9:8] bits, along with the CPTR[7:0] bits in the TPOP Current
Pointer LSB Register reflect the value of the current payload pointer being
inserted in the transmit stream. The value may be changed by loading a new
pointer value using the TPOP Arbitrary Pointer LSB and MSB Registers, or by
inserting positive and negative pointer movements using the PSE and NSE
register bits.
It is recommended the CPTR[9:0] value be software de-bounced to ensure a
correct value is received.
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Register 0x45:TPOP Arbitrary Pointer LSB
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
APTR[7]
APTR[6]
APTR[5]
APTR[4]
APTR[3]
APTR[2]
APTR[1]
APTR[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
This register allows an arbitrary pointer to be inserted for diagnostic purposes.
APTR[7:0]:
The APTR[7:0] bits, along with the APTR[9:8] bits in the TPOP Arbitrary
Pointer MSB Register are used to set an arbitrary payload pointer value. The
arbitrary pointer value is inserted in the transmit stream by writing a logic one
to the PLD bit in the TPOP Pointer Control Register.
If the FTPTR bit in the TPOP Pointer Control register is a logic one, the
current APTR[9:0] value is inserted into the payload pointer bytes (H1 and
H2) in the transmit stream.
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Register 0x46:TPOP Arbitrary Pointer MSB
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
NDF[3]
NDF[2]
NDF[1]
NDF[0]
S[1]
S[0]
APTR[9]
APTR[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
0
0
1
1
0
0
0
This register allows an arbitrary pointer to be inserted for diagnostic purposes.
APTR[9:8]:
The APTR[9:8] bits, along with the APTR[7:0] bits in the TPOP Arbitrary
Pointer LSB Register are used to set an arbitrary payload pointer value. The
arbitrary pointer value is inserted in the transmit stream by writing a logic one
to the PLD bit in the TPOP Pointer Control Register.
If the FTPTR bit in the TPOP Pointer Control register is a logic one, the
current APTR[9:0] value is inserted into the payload pointer bytes (H1 and
H2) in the transmit stream.
S[1], S[0]:
The S[1:0] bits contain the value inserted in the S[1:0] bit positions (also
referred to as the unused bits) in the payload pointer.
NDF[3:0]:
The NDF[3:0] bits contain the value inserted in the NDF bit positions when an
arbitrary new payload pointer value is inserted (using the PLD bit in the TPOP
Pointer Control Register) or when new data flag generation is enabled using
primary input NDF, or the NDF bit in the TPOP Pointer Control Register.
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Register 0x48:TPOP Path Signal Label
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
C2[7]
C2[6]
C2[5]
C2[4]
C2[3]
C2[2]
C2[1]
C2[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
1
This register allows control over the path signal label. Upon reset the register
defaults to 0x01, which signifies an equipped but not specific payload. This
register should be reprogrammmed with the value 0x13 for Asynchronous
Transfer Mode (ATM) mode.
C2[7:0]:
The C2[7:0] bits are inserted in the C2 byte position in the transmit stream. .
Upon reset the register defaults to 0x01, which signifies an equipped but not
specific payload. This register should be reprogrammed with the value 0x13
when in Asynchronous Transfer Mode (ATM) mode.
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Register 0x49:TPOP Path Status
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
FEBE[3]
FEBE[2]
FEBE[1]
FEBE[0]
PRDI
APRDI
G1[1]
G1[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
This register allows control over the path status byte.
G[1:0]:
The G1[1:0] bits are inserted in bits 1 and 2 of the path status byte G1. These
bits are ignored when EPRDIEN is logic zero or when EPRDIEN and
EPRDISRC are both logic one. See the description of EPRDIEN and
EPRDISRC for more details on how G1 can be controlled.
APRDI
The APRDI bit controls the insertion of the auxiliary path remote defect
indication. When APRDI is a logic one, the APRDI bit position in the path
status byte is set high. When APRDI is a logic zero, the APRDI bit position in
the path status byte is set low.
PRDI:
The PRDI bit controls the insertion of the path remote defect indication. When
a logic one is written to this bit position, the PRDI bit position in the path
status byte is set high. When a logic zero is written to this bit position, the
PRDI bit position in the path status byte is set low. This bit is ignored when
EPRDIEN is logic zero or when EPRDIEN and EPRDISRC are both logic one
and the PRDI bit in the G1 byte (bit 6) is set according to the setting of the
Channel Auto Enhanced Path RDI Control registers (0x92 and 0x93).
FEBE[3:0]:
The FEBE[3:0] bits are inserted in the FEBE bit positions in the path status
byte. The value contained in FEBE[3:0] is cleared after being inserted in the
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path status byte. Any non-zero FEBE value overwrites the value that would
normally have been inserted based on the number of receive B3 errors during
the last frame. When reading this register, a non-zero value in these bit
positions indicates that the insertion of this value is still pending.
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Register 0x60: RXCP Configuration 1
Bit
Type
R/W
R/W
Function
DDSCR
Reserved
Unused
Unused
Unused
HCSADD
Reserved
DISCOR
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
X
X
X
1
0
0
R/W
R/W
R/W
DISCOR:
The DISCOR bit controls the HCS error correction algorithm. When DISCOR
is a logic zero, the error correction algorithm is enabled, and single-bit errors
detected in the cell header are corrected. When DISCOR is a logic one, the
error correction algorithm is disabled, and any error detected in the cell
header is treated as an uncorrectable HCS error.
HCSADD:
6
4
2
The HCSADD bit controls the addition of the coset polynomial, x +x +x +1, to
the HCS octet prior to comparison. When HCSADD is a logic one, the
polynomial is added, and the resulting HCS is compared. When HCSADD is
a logic zero, the polynomial is not added, and the unmodified HCS is
compared.
DDSCR:
The DDSCR bit controls the de-scrambling of the cell payload with the
polynomial x43 + 1. When DDSCR is set to logic one, cell payload de-
scrambling is disabled. When DDSCR is set to logic zero, payload de-
scrambling is enabled.
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Register 0x61: RXCP Configuration 2
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
CCDIS
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
HCSPASS
IDLEPASS
Reserved
Reserved
Reserved
HCSFTR[1]
HCSFTR[0]
HCSFTR[1:0]:
The HCS filter bits, HCSFTR[1:0] indicate the number of consecutive error-
free cells required, while in detection mode, before reverting back to
correction mode.
HCSFTR[1:0] Cell Acceptance Threshold
00
01
10
11
One ATM cell with correct HCS before resumption of cell
acceptance. This cell is accepted.
Two ATM cells with correct HCS before resumption of cell
acceptance. The last cell is accepted.
Four ATM cells with correct HCS before resumption of cell
acceptance. The last cell is accepted.
Eight ATM cells with correct HCS before resumption of cell
acceptance. The last cell is accepted.
IDLEPASS:
The IDLEPASS bit controls the function of the Idle Cell filter. When IDLEPASS
is written with a logic zero, all cells that match the Idle Cell Header Pattern
and Idle Cell Header Mask are filtered out. When IDLEPASS is a logic one,
the Idle Cell Header Pattern and Mask registers are ignored. The default
state of this bit and the bits in the Idle Cell Header Mask and Idle Cell Header
Pattern Registers enable the dropping of idle cells.
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HCSPASS:
The HCSPASS bit controls the dropping of cells based on the detection of an
uncorrectable HCS error. When HCSPASS is a logic zero, cells containing an
uncorrectable HCS error are dropped. When HCSPASS is a logic one, cells
are passed to the receive FIFO regardless of errors detected in the HCS.
Additionally, the HCS verification finite state machine never exits the
correction mode.
Regardless of the programming of this bit, cells are always dropped while the
cell delineation state machine is in the 'HUNT' or 'PRESYNC' states unless
the CCDIS bit in this register is set to logic one.
CCDIS:
The CCDIS bit can be used to disable all cell filtering and cell delineation. All
payload data read from the RXCP is passed into its FIFO without the
requirement of having to find cell delineation first.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x62: RXCP FIFO/UTOPIA Control & Config
Bit
Type
R/W
Function
RXPTYP
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
X
0
R/W
RCAINV
R/W RCALEVEL0
Unused
1
X
X
X
0
Unused
Unused
FIFORST
R/W
FIFORST:
The FIFORST bit is used to reset the four-cell receive FIFO. When FIFORST
is set to logic zero, the FIFO operates normally. When FIFORST is set to
logic one, the FIFO is immediately emptied and ignores writes. The FIFO
remains empty and continues to ignore writes until a logic zero is written to
FIFORST.
RCALEVEL0:
The RCA (and DRCA[x]) level 0 bit, RCALEVEL0, determines what output
RCA (and DRCA[x]) indicates when it transitions low. When RCALEVEL0 is
set to logic one, a high-to-low transition on output DRCA[x] and RCA indicates
that the receive FIFO is empty (DRCA[x] and RCA, if polled, will de-assert on
the rising RFCLK edge after Payload word 24 is output. When RCALEVEL0
is set to logic zero, a high-to-low transition on output DRCA[x] and RCA, if
polled, indicates that the receive FIFO is near empty. DRCA[x] and RCA, if
polled, will de-assert on the rising RFCLK edge after Payload byte 19 is
output.
RCAINV:
The RCAINV bit inverts the polarity of the DRCA[x] and RCA output signal.
When RCAINV is a logic one, the polarity of DRCA[x] and RCA is inverted
(DRCA[x] and RCA at logic zero means there is a receive cell available to be
read). When RCAINV is a logic zero, the polarity of RCA and DRCA[x] is not
inverted.
RXPTYP:
The RXPTYP bit selects even or odd parity for output RPRTY. When set to
logic one, output RPRTY is the even parity bit for outputs RDAT[15:0]. When
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RXPTYP is set to logic zero, RPRTY is the odd parity bit for outputs
RDAT[15:0].
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Register 0x63: RXCP Interrupt Enables and Counter Status
Bit
Type
R
R
Function
XFERI
OVR
Unused
XFERE
OOCDE
HCSE
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
FOVRE
LCDE
LCDE:
The LCDE bit enables the generation of an interrupt due to a change in the
LCD state. When LCDE is set to logic one, the interrupt is enabled.
FOVRE:
The FOVRE bit enables the generation of an interrupt due to a FIFO overrun
error condition. When FOVRE is set to logic one, the interrupt is enabled.
HCSE:
The HCSE bit enables the generation of an interrupt due to the detection of a
corrected or an uncorrected HCS error. When HCSE is set to logic one, the
interrupt is enabled.
OOCDE:
The OOCDE bit enables the generation of an interrupt due to a change in cell
delineation state. When OOCDE is set to logic one, the interrupt is enabled.
XFERE:
The XFERE bit enables the generation of an interrupt when an accumulation
interval is completed and new values are stored in the RXCP Count registers.
When XFERE is set to logic one, the interrupt is enabled.
OVR:
The OVR bit is the overrun status of the RXCP Performance Monitoring Count
registers. A logic one in this bit position indicates that a previous transfer
(indicated by XFERI being logic one) has not been acknowledged before the
next accumulation interval has occurred and that the contents of the RXCP
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Count registers have been overwritten. OVR is set to logic zero when this
register is read.
XFERI:
The XFERI bit indicates that a transfer of RXCP Performance Monitoring
Count data has occurred. A logic one in this bit position indicates that the
RXCP Count registers have been updated. This update is initiated by writing
to one of the RXCP Count register locations or to the S/UNI-QUAD
Identification, Master Reset, and Global Monitor Update register. XFERI is set
to logic zero when this register is read.
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Register 0x64: RXCP Status/Interrupt Status
Bit
Type
R
R
Function
OOCDV
LCDV
Unused
OOCDI
CHCSI
UHCSI
FOVRI
LCDI
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
R
LCDI:
The LCDI bit is set high when there is a change in the loss of cell delineation
(LCD) state. This bit is reset immediately after a read to this register.
FOVRI:
The FOVRI bit is set to logic one when a FIFO overrun occurs. This bit is
reset immediately after a read to this register.
UHCSI:
The UHCSI bit is set high when an uncorrected HCS error is detected. This
bit is reset immediately after a read to this register.
CHCSI:
The CHCSI bit is set high when a corrected HCS error is detected. This bit is
reset immediately after a read to this register.
OOCDI:
The OOCDI bit is set high when the RXCP enters or exits the SYNC state.
The OOCDV bit indicates whether the RXCP is in the SYNC state or not. The
OOCDI bit is reset immediately after a read to this register.
LCDV:
The LCDV bit gives the Loss of Cell Delineation state. When LCD is logic
one, an out of cell delineation (OCD) defect has persisted for the number of
cells specified in the LCD Count Threshold register. When LCD is logic zero,
no OCD has persisted for the number of cells specified in the LCD Count
Threshold register. The cell time period can be varied by using the LCDC[7:0]
register bits in the RXCP LCD Count Threshold register.
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OOCDV:
The OOCDV bit indicates the cell delineation state. When OOCDV is high, the
cell delineation state machine is in the 'HUNT' or 'PRESYNC' states and is
hunting for the cell boundaries. When OOCDV is low, the cell delineation
state machine is in the 'SYNC' state and cells are passed through the receive
FIFO.
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Register 0x65: RXCP LCD CountThreshold (MSB)
Bit
Type
Function
Unused
Unused
Unused
Unused
Unused
LCDC[10]
LCDC[9]
LCDC[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
0
R/W
R/W
R/W
0
1
Register 0x66: RXCP LCD CountThreshold (LSB)
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
LCDC[7]
LCDC[6]
LCDC[5]
LCDC[4]
LCDC[3]
LCDC[2]
LCDC[1]
LCDC[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
1
1
0
1
0
0
0
LCDC[10:0]:
The LCDC[10:0] bits represent the number of consecutive cell periods the
receive cell processor must be out of cell delineation before loss of cell
delineation (LCD) is declared. Likewise, LCD is not de-asserted until receive
cell processor is in cell delineation for the number of cell periods specified by
LCDC[10:0].
The default value of LCD[10:0] is 360, which translates to an average cell
period of 2.83 µs and a default LCD integration period of 1.02 ms.
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Register 0x67: RXCP Idle Cell Header Pattern
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
GFC[3]
GFC[2]
GFC[1]
GFC[0]
PTI[3]
PTI[2]
PTI[1]
CLP
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
1
GFC[3:0]:
The GFC[3:0] bits contain the pattern to match in the first, second, third, and
fourth bits of the first octet of the 53-octet cell, in conjunction with the Idle Cell
Header Mask Register. The IDLEPASS bit in the Configuration 2 Register
must be set to logic zero to enable dropping of cells matching this pattern.
Note that an all-zeros pattern must be present in the VPI and VCI fields of the
idle or unassigned cell.
PTI[2:0]:
The PTI[2:0] bits contain the pattern to match in the fifth, sixth, and seventh
bits of the fourth octet of the 53-octet cell, in conjunction with the Idle Cell
Header Mask Register. The IDLEPASS bit in the Configuration 2 Register
must be set to logic zero to enable dropping of cells matching this pattern.
CLP:
The CLP bit contains the pattern to match in the eighth bit of the fourth octet
of the 53-octet cell, in conjunction with the Match Header Mask Register. The
IDLEPASS bit in the RXCP Configuration 2 Register must be set to logic zero
to enable dropping of cells matching this pattern.
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Register 0x68: RXCP Idle Cell Header Mask
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
MGFC[3]
MGFC[2]
MGFC[1]
MGFC[0]
MPTI2]
MPTI[1]
MPTI[0]
MCLP
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
1
1
1
1
1
1
1
MGFC[3:0]:
The MGFC[3:0] bits contain the mask pattern for the first, second, third, and
fourth bits of the first octet of the 53-octet cell. This mask is applied to the Idle
Cell Header Pattern Register to select the bits included in the cell filter. A
logic one in any bit position enables the corresponding bit in the pattern
register to be compared. A logic zero causes the masking of the
corresponding bit.
MPTI[3:0]:
The MPTI[3:0] bits contain the mask pattern for the fifth, sixth, and seventh
bits of the fourth octet of the 53-octet cell. This mask is applied to the Idle
Cell Header Pattern Register to select the bits included in the cell filter. A
logic one in any bit position enables the corresponding bit in the pattern
register to be compared. A logic zero causes the masking of the
corresponding bit.
MCLP:
The CLP bit contains the mask pattern for the eighth bit of the fourth octet of
the 53-octet cell. This mask is applied to the Idle Cell Header Pattern
Register to select the bits included in the cell filter. A logic one in this bit
position enables the MCLP bit in the pattern register to be compared. A logic
zero causes the masking of the MCLP bit.
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Register 0x69: RXCP Corrected HCS Error Count
Bit
Type
R
R
R
R
R
R
R
R
Function
CHCS[7]
CHCS[6]
CHCS[5]
CHCS[4]
CHCS[3]
CHCS[2]
CHCS[1]
CHCS[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
CHCS[7:0]:
The CHCS[7:0] bits indicate the number of corrected HCS error events that
occurred during the last accumulation interval. The contents of these
registers are valid a maximum of 40 RCLK periods after a transfer is triggered
by a write to one of RXCP's performance monitor counters or to the
S/UNI-QUAD Channel Reset, and Monitoring Update register.
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Register 0x6A: RXCP Uncorrected HCS Error Count
Bit
Type
R
R
R
R
R
R
R
R
Function
UHCS[7]
UHCS[6]
UHCS[5]
UHCS[4]
UHCS[3]
UHCS[2]
UHCS[1]
UHCS[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
UHCS[7:0]:
The UHCS[7:0] bits indicate the number of uncorrectable HCS error events
that occurred during the last accumulation interval. The contents of these
registers are valid a maximum of 40 RCLK periods after a transfer is triggered
by a write to one of RXCP's performance monitor counters or to the
S/UNI-QUAD Channel Reset and Monitoring Update register.
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Register 0x6B: RXCP Receive Cell Counter (LSB)
Bit
Type
R
R
R
R
R
R
R
R
Function
RCELL[7]
RCELL[6]
RCELL[5]
RCELL[4]
RCELL[3]
RCELL[2]
RCELL[1]
RCELL[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x6C: RXCP Receive Cell Counter
Bit
Type
R
R
R
R
R
R
R
R
Function
RCELL[15]
RCELL[14]
RCELL[13]
RCELL[12]
RCELL[11]
RCELL[10]
RCELL[9]
RCELL[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x6D: RXCP Receive Cell Counter (MSB)
Bit
Type
Function
Unused
Unused
Unused
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Unused
R
R
R
RCELL[18]
RCELL[17]
RCELL[16]
RCELL[20:0]:
The RCELL[18:0] bits indicate the number of cells received and written into
the receive FIFO during the last accumulation interval. Cells received and
filtered due to HCS errors or Idle cell matches are not counted. The counter
should be polled every second to avoid saturation. The contents of these
registers are valid a maximum of 67 RCLK periods after a transfer is triggered
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by a write to one of RXCP's performance monitor counters or to the
S/UNI-QUAD Channel Reset and Monitoring Update register.
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Register 0x6E: RXCP Idle Cell Counter (LSB)
Bit
Type
R
R
R
R
R
R
R
R
Function
ICELL[7]
ICELL[6]
ICELL[5]
ICELL[4]
ICELL[3]
ICELL[2]
ICELL[1]
ICELL[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x6F: RXCP Idle Cell Counter
Bit
Type
R
R
R
R
R
R
R
R
Function
ICELL[15]
ICELL[14]
ICELL[13]
ICELL[12]
ICELL[11]
ICELL[10]
ICELL[9]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
ICELL[8]
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Register 0x70: RXCP Idle Cell Counter (MSB)
Bit
Type
Function
Unused
Unused
Unused
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Unused
R
R
R
ICELL[18]
ICELL[17]
ICELL[16]
ICELL[18:0]:
The ICELL[18:0] bits indicate the number of idle cells received during the last
accumulation interval. The counter should be polled every second to avoid
saturation. The contents of these registers are valid a maximum of 67 RCLK
periods after a transfer is triggered by a write to one of RXCP's performance
monitor counters or to the S/UNI-QUAD’s Channel Reset, and Monitoring
Update register.
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Register 0x80: TXCP Configuration 1
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
TPTYP
0
0
0
0
0
1
0
0
R/W TCALEVEL0
R/W
R/W
R/W
R/W
R/W
R/W
Reserved
Reserved
HCSB
HCSADD
DSCR
FIFORST
FIFORST:
The FIFORST bit is used to reset the four cell transmit FIFO. When FIFORST
is set to logic zero, the FIFO operates normally. When FIFORST is set to logic
one, the FIFO is immediately emptied and ignores writes.The FIFO remains
empty and continues to ignore writes until a logic zero is written to FIFORST.
Null/unassigned cells are transmitted until a subsequent cell is written to the
FIFO.
DSCR:
The DSCR bit controls the scrambling of the cell payload. When DSCR is a
logic one, cell payload scrambling is disabled. When DSCR is a logic zero,
payload scrambling is enabled.
HCSADD:
6 4 2
The HCSADD bit controls the addition of the coset polynomial, x +x +x +1,
to the HCS octet prior to insertion in the synchronous payload envelope.
When HCSADD is a logic one, the polynomial is added, and the resulting
HCS is inserted. When HCSADD is a logic zero, the polynomial is not added,
and the unmodified HCS is inserted. HCSADD takes effect unconditionally
regardless of whether a null/unassigned cell is being transmitted or whether
the HCS octet was read from the FIFO.
HCSB:
The active low HCSB bit enables the internal generation and insertion of the
HCS octet into the transmit cell stream. When HCSB is logic zero, the HCS is
generated and inserted internally. If HCSB is logic one , then no HCS octet is
inserted in the transmit data stream.
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TCALEVEL0:
The active high TCA (and DTCA[x]) level 0 bit, TCALEVEL0 determines what
output TCA (and DTCA[x]) indicates when it transitions low. When
TCALEVEL0 is set to logic one, output TCA (and DTCA[x]) indicates that the
transmit FIFO is full and can accept no more writes. When TCALEVEL0 is set
to logic zero, output TCA (and DTCA[x]) indicates that the transmit FIFO is
near full.
TPTYP:
The TPTYP bit selects even or odd parity for input TPRTY. When set to logic
one, input TPRTY is the even parity bit for the TDAT input bus. When set to
logic zero, input TPRTY is the odd parity bit for the TDAT input bus. Reserved
The reserved bits must be programmed to logic zero for proper operation.
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Register 0x81: TXCP Configuration 2
Bit
Type
Function
Unused
Unused
Unused
TCAINV
FIFODP[1]
FIFODP[0]
DHCS
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
HCSCTLEB
HCSCTLEB:
The active low HCS control enable, HCSCTLEB bit enables the XORing of the
HCS Control byte with the generated HCS.When set to logic zero, the HCS
Control byte provided in the third word of the 27 word data structure is XORed
with the generated HCS. When set to logic one, XORing is disabled and the
HCS Control byte is ignored.
DHCS:
The DHCS bit controls the insertion of HCS errors for diagnostic purposes.
When DHCS is set to logic one, the HCS octet is inverted prior to insertion in
the synchronous payload envelope. DHCS takes effect unconditionally
regardless of whether a null/unassigned cell is being transmitted or whether
the HCS octet was read from the FIFO. DHCS occurs after any error insertion
caused by the Control Byte in the 27-word data structure.
FIFODP[1:0]:
The FIFODP[1:0] bits determine the transmit FIFO cell depth at which TCA
and DTCA[x] de-assert. FIFO depth control may be important in systems
where the cell latency through the TXCP must be minimized. When the FIFO
is filled to the specified depth, the transmit cell available signal, TCA (and
DTCA[x]) is asserted. Note that regardless of what fill level FIFODP[1:0] is
set to, the transmit cell processor can store 4 complete cells. The selectable
FIFO cell depths are shown below:
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FIFODP[1] FIFODP[0]
FIFO DEPTH
4 cells
0
0
1
1
0
1
0
1
3 cells
2 cells
1 cell
TCAINV:
The TCAINV bit inverts the polarity of the TCA (and DTCA[x]) output
signal. When TCAINV is a logic one, the polarity of TCA (and DTCA[x])
is inverted (TCA (and DTCA[x]) at logic zero means there is transmit
cell space available to be written to). When TCAINV is a logic zero, the
polarity of TCA (and DTCA[x]) is not inverted.
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Register 0x82: TXCP Cell Count Status/Configuration Options
Bit
Type
Function
XFERE
XFERI
Default
Bit 7 R/W
0
X
X
X
1
0
0
0
Bit 6
Bit 5
Bit 4
Bit 3 R/W
Bit 2 R/W
Bit 1 R/W
Bit 0 R/W
R
R
OVR
Unused
Reserved
H4INSB
Reserved
Reserved
H4INSB:
The active low H4 insert enable, H4INSB, determines the contents of the H4
byte in the outgoing path overhead. If H4INSB is set to logic one, the H4 byte
is set to the value of 00 hexadecimal. If H4INSB is set to logic zero, the H4
byte is set to the cell indicator offset value.
XFERI:
The XFERI bit indicates that a transfer of Transmit Cell Count data has
occurred. A logic one in this bit position indicates that the Transmit Cell Count
registers have been updated. This update is initiated by writing to one of the
Transmit Cell Count register locations or to the S/UNI-QUAD Identification,
Master Reset, and Global Monitor Update register. XFERI is set to logic zero
when this register is read.
OVR:
The OVR bit is the overrun status of the Transmit Cell Count registers. A logic
one in this bit position indicates that a previous transfer (indicated by XFERI
being logic one) has not been acknowledged before the next accumulation
interval has occurred and that the contents of the Transmit Cell Count
registers have been overwritten. OVR is set to logic zero when this register is
read.
XFERE:
The XFERE bit enables the generation of an interrupt when an accumulation
interval is completed and new values are stored in the Transmit Cell Count
registers. When XFERE is set to logic one, the interrupt is enabled.
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Reserved:
These bits should be set to their default values for proper operation
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Register 0x83: TXCP Interrupt Enable/Status
Bit
Type
R/W
R/W
R/W
Function
TPRTYE
FOVRE
TSOCE
Unused
Unused
TPRTYI
FOVRI
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
X
X
X
X
X
R
R
R
TSOCI
TSOCI:
The TSOCI bit is set high when the TSOC input is sampled high during any
position other than the first word of the selected data structure. The write
address counter is reset to the first word of the data structure when TSOC is
sampled high. This bit is reset immediately after a read to this register.
FOVRI:
The FOVRI bit is set high when an attempt is made to write into the FIFO
when it is already full. This bit is reset immediately after a read to this register
TPRTYI:
The TPRTYI bit indicates if a parity error was detected on the TDAT input bus.
When logic one, the TPRTYI bit indicates a parity error over the active TDAT
bus. This bit is cleared when this register is read. Odd or even parity is
selected using the TPTYPE bit.
TSOCE:
The TSOCE bit enables the generation of an interrupt when the TSOC input is
sampled high during any position other than the first word of the selected data
structure. When TSOCE is set to logic one, the interrupt is enabled.
FOVRE:
The FOVRE bit enables the generation of an interrupt due to an attempt to
write the FIFO when it is already full. When FOVRE is set to logic one, the
interrupt is enabled.
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TPRTYE:
The TPRTYE bit enables transmit parity interrupts. When set to logic one,
parity errors are indicated on INT and TPRTYI. When set to logic zero, parity
errors are indicated using bit TPRTYI but are not indicated on output INT.
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Register 0x84: TXCP Idle Cell Header Control
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
GFC[3]
GFC[2]
GFC[1]
GFC[0]
PTI[2]
PTI[1]
PTI[0]
CLP
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
1
CLP:
The CLP bit contains the eighth bit position of the fourth octet of the
idle/unassigned cell pattern. Cell rate decoupling is accomplished by
transmitting idle cells when the TXCP detects that no outstanding cells exist in
the transmit FIFO.
PTI[3:0]:
The PTI[3:0] bits contains the fifth, sixth, and seventh bit positions of the
fourth octet of the idle/unassigned cell pattern. Idle cells are transmitted when
the TXCP detects that no outstanding cells exist in the transmit FIFO.
GFC[3:0]:
The GFC[3:0] bits contain the first, second, third, and fourth bit positions of
the first octet of the idle/unassigned cell pattern. Idle/unassigned cells are
transmitted when the TXCP detects that no outstanding cells exist in the
transmit FIFO. The all zeros pattern is transmitted in the VCI and VPI fields of
the idle cell.
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Register 0x85: TXCP Idle Cell Payload Control
Bit
Type
Function
PAYLD[7]
PAYLD[6]
PAYLD[5]
PAYLD[4]
PAYLD[3]
PAYLD[2]
PAYLD[1]
PAYLD[0]
Default
Bit 7 R/W
Bit 6 R/W
Bit 5 R/W
Bit 4 R/W
Bit 3 R/W
Bit 2 R/W
Bit 1 R/W
Bit 0 R/W
0
1
1
0
1
0
1
0
PAYLD[7:0]:
The PAYLD[7:0] bits contain the pattern inserted in the idle cell payload. Idle
cells are inserted when the TXCP detects that the transmit FIFO contains no
outstanding cells. PAYLD[7] is the most significant bit and is the first bit
transmitted. PAYLD[0] is the least significant bit.
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Register 0x86: TXCPTransmit Cell Count (LSB)
Bit
Type
R
R
R
R
R
R
R
R
Function
TCELL[7]
TCELL[6]
TCELL[5]
TCELL[4]
TCELL[3]
TCELL[2]
TCELL[1]
TCELL[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x87: TXCPTransmit Cell Count
Bit
Type
R
R
R
R
R
R
R
R
Function
TCELL[15]
TCELL[14]
TCELL[13]
TCELL[12]
TCELL[11]
TCELL[10]
TCELL[9]
TCELL[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Register 0x88: TXCPTransmit Cell Count (MSB)
Bit
Type
Function
Unused
Unused
Unused
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Unused
R
R
R
TCELL[18]
TCELL[17]
TCELL[16]
TCELL[18:0]:
The TCELL[18:0] bits indicate the number of cells read from the transmit FIFO
and inserted into the transmission stream during the last accumulation
interval. Idle cells inserted into the transmission stream are not counted.
A write to any one of the TXCP_50 Transmit Cell Counter registers or to the
S/UNI-QUAD Channel Reset and Monitoring Update register (Register 0x05)
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loads the registers with the current counter value and resets the internal 19 bit
counter to 1 or 0.The counter reset value is dependent on if there was a
count event during the transfer of the count to the Transmit Cell Counter
registers.The counter should be polled every second to avoid saturating.The
contents of these registers are valid after a maximum of 5 µs after a transfer
is triggered by a write to a TXCP_50 Transmit Cell count Register or the
S/UNI-QUAD Channel Reset and Monitoring Update register (Register 0x05).
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Register 0x90: S/UNI-QUAD Channel Auto Line RDI Control
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SDLRDI
SFLRDI
LOFLRDI
LOSLRDI
Reserved
Reserved
LAISLRDI
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
1
1
0
0
1
X
This register controls the auto assertion of line RDI in the local TLOP. Since the
S/UNI-QUAD provides STS-3c (STM-1/AU4) mappings, this register controls the
assertion of line RDI for the entire SONET/SDH stream.
LAISLRDI:
The Line Alarm Indication Signal LRDI (LAISLRDI) controls the insertion of a
Line RDI in the transmit data stream upon detection of this alarm condition.
When LAISLRDI is set to logic one, the transmit line RDI will be inserted.
When LAISLRDI is set to logic zero, no action is taken.This register bit has
effect only if the AUTOLRDI register bit is also set to logic one.
LOSLRDI:
The Loss of Signal LRDI (LOSLRDI) controls the insertion of a Line RDI in the
transmit data stream upon detection of this alarm condition. When LOSLRDI
is set to logic one, the transmit line RDI will be inserted. When LOSLRDI is set
to logic zero, no action is taken.This register bit has effect only if the
AUTOLRDI register bit is also set to logic one.
LOFLRDI:
The Loss of Frame LRDI (LOFLRDI) controls the insertion of a Line RDI in the
transmit data stream upon detection of this alarm condition. When LOFLRDI
is set to logic one, the transmit line RDI will be inserted. When LOFLRDI is set
to logic zero, no action is taken.This register bit has effect only if the
AUTOLRDI register bit is also set to logic one.
SFLRDI:
The Signal Fail BER LRDI (SFLRDI) controls the insertion of a Line RDI in the
transmit data stream upon detection of this alarm condition. When SFLRDI is
set to logic one, the transmit line RDI will be inserted. When SFLRDI is set to
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logic zero, no action is taken.This register bit has effect only if the AUTOLRDI
register bit is also set to logic one.
SDLRDI:
The Signal Degrade BER LRDI (SDLRDI) controls the insertion of a Line RDI
in the transmit data stream upon detection of this alarm condition. When
SDLRDI is set to logic one, the transmit line RDI will be inserted. When
SDLRDI is set to logic zero, no action is taken.This register bit has effect only
if the AUTOLRDI register bit is also set to logic one.
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Register 0x91: S/UNI-QUAD Channel Auto Path RDI Control
Bit
Type
R/W
R/W
R/W
R/W
R/W
Function
LCDPRDI
ALRMPRDI
PAISPRDI
Reserved
LOPPRDI
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
1
1
1
1
1
1
R/W LOPCONPRDI
R/W
R/W
Reserved
Reserved
This register controls the auto assertion of path RDI (G1 bit 5) in the local TPOP.
Since the S/UNI-QUAD provides STS-3c (STM-1/AU4) mappings, this register
controls the assertion of path RDI for the entire SONET/SDH stream. See also
the S/UNI-QUAD Channel Auto Enhanced Path RDI register.
LOPCONPRDI:
The Loss of Pointer Concatenation Indication PRDI (LOPCONPRDI) controls
the insertion of a Path RDI in the transmit data stream upon detection of this
alarm condition. When LOPCONPRDI is set to logic one, the transmit line RDI
will be inserted. When LOPCONPRDI is set to logic zero, no action is taken.
This register bit has effect only if the AUTOPRDI register bit is also set to logic
one.
LOPPRDI:
The Loss of Pointer PRDI (LOPPRDI) controls the insertion of a Path RDI in
the transmit data stream upon detection of this alarm condition. When
LOPPRDI is set to logic one, the transmit line RDI will be inserted.When
LOPPRDI is set to logic zero, no action is taken.This register bit has effect
only if the AUTOPRDI register bit is also set to logic one.
PAISPRDI:
The Path Alarm Indication Signal PRDI (PAISPRDI) controls the insertion of a
Path RDI in the transmit data stream upon detection of this alarm condition.
When PAISPRDI is set to logic one, the transmit line RDI will be inserted.
When PAISPRDI is set to logic zero, no action is taken.This register bit has
effect only if the AUTOPRDI register bit is also set to logic one.
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ALRMPRDI:
The Line Alarm Indication Signal PRDI (ALRMPRDI) controls the insertion of
a Path RDI in the transmit data stream upon detection of one of the following
alarm conditions: Loss of Signal (LOS), Loss of Frame (LOF) and Line Alarm
Indication Signal (LAIS). When ALRMPRDI is set to logic one, the transmit
line RDI will be inserted. When ALRMPRDI is set to logic zero, no action is
taken.This register bit has effect only if the AUTOPRDI register bit is also set
to logic one.
LCDPRDI
The Loss of ATM Cell Delineation Signal PRDI (LCDPRDI) controls the
insertion of Path RDI in the transmit data stream upon detection of this alarm.
When LCDPRDI is set to logic zero, no action is taken. This register bit is
used only if the AUTOPRDI register bit is also set to logic one.
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Register 0x92: S/UNI-QUAD Channel Auto Enhanced Path RDI Control
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
LCDEPRDI
0
0
0
1
0
0
0
1
R/W NOALMEPRDI
R/W NOPAISEPRDI
R/W PSLMEPRDI
R/W NOLOPEPRDI
R/W NOLOPCONEPRDI
R/W
R/W
Reserved
Reserved
This register and the S/UNI-QUAD Channel Auto Path RDI Control register
controls the auto assertion of enhanced path RDI (G1 bits 5,6,7) in the local
TPOP. Since the S/UNI-QUAD provides a STS-3c (STM-1) mapping, this register
with its companion register controls auto enhanced path RDI assertion on the
entire transmit stream.
NOLOPCONEPRDI:
When set high, the NOLOPCONEPRDI bit disables enhanced path RDI
assertion when loss of pointer concatenation (LOPCON) events are detected
in the receive stream. If enabled, when the event occurs, bit 6 of the G1 byte
is set low while bit 7 of the G1 byte is set high. NOLOPCONEPRDI has
precedence over PSLMERDI and UNEQERDI.
When NOLOPCONEPRDI is set low, reporting of enhanced RDI is according
to PSLMERDI and UNEQERDI and the associated alarm states.
NOLOPEPRDI:
When set high, the NOLOPEPRDI bit disables enhanced path RDI assertion
when loss of pointer (LOP) events are detected in the receive stream. If
enabled, when the event occurs, bit 6 of the G1 byte is set low while bit 7 of
the G1 byte is set high. NOLOPEPRDI has precedence over PSLMERDI and
UNEQERDI.
When NOLOPEPRDI is set low, reporting of enhanced RDI is according to
PSLMERDI and UNEQERDI and the associated alarm states.
PSLMEPRDI:
When set high, the PSLMEPRDI bit enables enhanced path RDI assertion
when path signal label mismatch (PSLM) events are detected in the receive
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stream. If enabled, when the event occurs, bit 6 of the G1 byte is set high
while bit 7 of the G1 byte is set low.
When PSLMEPRDI is set low, path signal label mismatch events have no
effect on path RDI. In addition, this bit has no effect when EPRDI_EN is set
low.
NOPAISEPRDI:
When set high, the NOPAISEPRDI bit disables enhanced path RDI assertion
when the path alarm indication signal state (PAIS) is detected in the receive
stream. If enabled, when the event occurs, bit 6 of the G1 byte is set low
while bit 7 of the G1 byte is set high. NOPAISEPRDI has precedence over
PSLMERDI and UNEQERDI.
When NOPAISEPRDI is set low, reporting of enhanced RDI is according to
PSLMERDI and UNEQERDI and the associated alarm states.
NOALMEPRDI:
When set high, the NOALMEPRDI bit disables enhanced path RDI assertion
when loss of signal (LOS), loss of frame (LOF) or line alarm indication signal
(LAIS) events are detected in the receive stream. If enabled, when these
events occurs, bit 6 of the G1 byte is set low while bit 7 of the G1 byte is set
high. NOALMEPRDI has precedence over PSLMERDI and UNEQERDI.
When NOALMEPRDI is set low, reporting of enhanced RDI is according to
PSLMERDI and UNEQERDI and the associated alarm states.
LCDEPRDI:
When set high, the LCDEPRDI bit enables enhanced path RDI assertion
when loss of cell delineation (LCD) events are detected in the receive stream.
If enabled, when the event occurs, bit 6 of the G1 byte is set high while bit 7 of
the G1 byte is set low.
When LCDEPRDI is set low, loss of ATM cell delineation has no effect on path
RDI. In addition, this bit has no effect when EPRDI_EN is set low.
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Register 0x93: S/UNI-QUAD Channel Receive RDI and Enhanced RDI
Control Extensions
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W PAISCONPRDI
R/W NOPAISCONEPRDI
Unused
0
0
X
X
X
0
1
1
Unused
Unused
W
R/W
R/W
EPRDI_EN
Reserved
Reserved
This register along with the S/UNI-QUAD Channel Path RDI Control register
controls the auto assertion of path RDI on the TPOP transmit stream. This
register along with the S/UNI-QUAD Channel Enhanced Path RDI Control
register controls the auto assertion of enhanced path RDI on the TPOP transmit
stream.
Since the S/UNI-QUAD provides STS-3c (STM-1) mapping, this register controls
the entire SONET/SDH stream.
EPRDI_EN:
The EPRDI_EN bit enables the automatic insertion of enhanced RDI in the
local transmitter. When EPRDI_EN is a logic one, auto insertion is enabled
using the event enable bits in this register. When EPRDI_EN is a logic zero,
enhanced path RDI is not automatically inserted in the transmit stream.
NOPAISCONEPRDI:
When set high, the NOPAISCONEPRDI bit disables enhanced path RDI
assertion when path AIS concatenation (PAISCON) events are detected in the
receive stream. If enabled, when the event occurs, bit 6 of the G1 byte is set
low while bit 7 of the G1 byte is set high. NOPAISCONEPRDI has
precedence over PSLMERDI and UNEQERDI.
When NOPAISCONEPRDI is set low, reporting of enhanced RDI is according
to PSLMERDI and UNEQERDI and the associated alarm states.
PAISCONPRDI:
When set high, the PAISCONPRDI bit enables path RDI assertion when path
AIS concatenation (PAISCON) events are detected in the receive stream.
When PAISCONPRDI is set low, path AIS concatenation events have no effect
on path RDI.
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Register 0x94: S/UNI-QUAD Channel Receive Line AIS Control
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
Function
SDINS
SFINS
LOFINS
LOSINS
Reserved
Reserved
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
1
1
0
0
X
0
R/W
Reserved
LOSINS:
This bit is active only when the ALLONES bit in the RLOP Control/Status
register is set high; it is ignored if the ALLONES bit is set low. The LOSINS bit
enables the insertion of line AIS in the receive direction upon the declaration
of loss of signal (LOS). If LOSINS is a logic one, line AIS is inserted into the
SONET/SDH frame when LOS is declared. Line AIS is terminated when LOS
is removed.
LOFINS:
This bit is active only when the ALLONES bit in the RLOP Control/Status
register is set high; it is ignored if the ALLONES bit is set low. The LOFINS bit
enables the insertion of line AIS in the receive direction upon the declaration
of loss of frame (LOF). If LOSINS is a logic one, line AIS is inserted into the
SONET/SDH frame when LOS is declared. Line AIS is terminated when LOS
is removed.
SFINS:
This bit is active only when the ALLONES bit in the RLOP Control/Status
register is set high; it is ignored if the ALLONES bit is set low. The SFINS bit
enables the insertion of line AIS in the receive direction upon the declaration
of signal fail (SF). If SFINS is a logic one, line AIS is inserted into the
SONET/SDH frame when SF is declared. Line AIS is terminated when SF is
removed.
SDINS:
This bit is active only when the ALLONES bit in the RLOP Control/Status
register is set high; it is ignored if the ALLONES bit is set low. The SDINS bit
enables the insertion of line AIS in the receive direction upon the declaration
of signal degrade (SD). If SDINS is a logic one, line AIS is inserted into the
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SONET/SDH frame when SD is declared. Line AIS is terminated when SD is
removed.
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Register 0x95: S/UNI-QUAD Channel Receive Path AIS Control
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W PAISCONPAIS
R/W LOPCONPAIS
1
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
Reserved
Reserved
LOPPAIS
PAISPAIS
Reserved
Reserved
This register controls the auto assertion of path AIS on the receive side of the
system interface. AIS forces a loss of cell delineation.
PAISPAIS:
When set high, the PAISPAIS bit enables path AIS insertion when path AIS
events are detected in the receive stream. When PAISPAIS is set low, path
AIS events will not assert path AIS.
LOPPAIS:
When set high, the LOPPAIS bit enables path AIS insertion when loss of
pointer (LOP) events are detected in the receive stream. When LOPPAIS is
set low, loss of pointer events will not assert path AIS.
LOPCONPAIS:
When set high, the LOPCONPAIS bit enables path AIS insertion when loss of
pointer concatenation (LOPCON) events are detected in the receive stream.
When LOPCONPAIS is set low, loss of pointer concatenation events have will
not assert path AIS.
PAISCONPAIS:
When set high, the PAISCONPAIS bit enables path AIS insertion when Path
AIS concatenation (PAISCON) events are detected in the receive stream.
When PAISCONPAIS is set low, Path AIS concatenation events will not assert
path AIS.
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SATURN USER NETWORK INTERFACE (155-QUAD)
Register 0x96: S/UNI-QUAD Channel Receive Alarm Control #1
Bit
Type
Function
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved
Reserved
PERDIEN
PRDIEN
PAISEN
LCDEN
LOPEN
Register 0x97: S/UNI-QUAD Channel Receive Alarm Control #2
Bit
Type
Function
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
SFBEREN
SDBEREN
LRDIEN
LAISEN
OOFEN
LOFEN
LOSEN
LOSEN, LOFEN, OOFEN, LAISEN, LRDIEN, SDBEREN, SFBEREN, LOPEN,
LCDEN, PAISEN, PRDIEN, PERDIEN:
The above enable bits allow the corresponding alarm indications to be
reported (Ored) into the RALRM output. When the enable bit is high, the
corresponding alarm indication is combined with other alarm indications and
output on RALRM. When the enable bit is low, the corresponding alarm
indication does not affect the RALRM output.
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Alarm
LOS
LOF
Description
Loss of signal
Loss of frame
Out of Frame
OOF
LAIS
Line Alarm Indication Signal
LRDI
SDBER
SFBER
LOP
Line Remote Defect Indication
Signal Degrade Bit Error Rate
Signal Fail Bit Error Rate
Loss of Pointer
LCD
Loss of cell delineation
PAIS
Path Alarm Indication Signal
Path Remote Defect Indication
Path Enhanced Remote Defect Indication
Path Signal Label Mismatch
PRDI
PERDI
PSLM
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Register 0xE0: RASE Interrupt Enable
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
PSBFE
COAPSE
Z1/S1E
SFBERE
SDBERE
Unused
Unused
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
X
X
X
SDBERE:
The SDBERE bit is the interrupt enable for the signal degrade threshold
alarm. When SDBERE is a logic one, an interrupt is generated when the SD
alarm is declared or removed.
SFBERE:
The SFBERE bit is the interrupt enable for the signal fail threshold alarm.
When SFBERE is a logic one, an interrupt is generated when the SF alarm is
declared or removed.
Z1/S1E:
The Z1/S1 interrupt enable is an interrupt mask for changes in the received
synchronization status. When Z1/S1E is a logic one, an interrupt is generated
when a new synchronization status message is extracted into the Receive
Z1/S1 register.
COAPSE:
The COAPS interrupt enable is an interrupt mask for changes in the received
APS code. When COAPSE is a logic one, an interrupt is generated when a
new K1/K2 code value is extracted into the RASE Receive K1 and RASE
Receive K2 registers.
PSBFE:
The PSBF interrupt enable is an interrupt mask for protection switch byte
failure alarms. When PSBFE is a logic one, an interrupt is generated when
PSBF is declared or removed.
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Register 0xE1: RASE Interrupt Status
Bit
Type
R
R
R
R
R
R
R
R
Function
PSBFI
COAPSI
Z1/S1I
SFBERI
SDBERI
SFBERV
SDBERV
PSBFV
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
PSBFV:
The PSBFV bit indicates the protection switching byte failure alarm state. The
alarm is declared (PSBFV is set high) when twelve successive frames have
been received without three consecutive frames containing identical K1 bytes.
The alarm is removed (PSBFV is set low) when three consecutive frames
containing identical K1 bytes have been received.
SDBERV:
The SDBERV bit indicates the signal degrade threshold crossing alarm state.
The alarm is declared (SDBERV is set high) when the bit error rate exceeds
the threshold programmed in the RASE SD Declaring Threshold registers.
The alarm is removed (SDBERV is set low) when the bit error rate is below
the threshold programmed in the RASE SD Clearing Threshold registers.
SFBERV:
The SFBERV bit indicates the signal failure threshold crossing alarm state.
The alarm is declared (SFBERV is set high) when the bit error rate exceeds
the threshold programmed in the RASE SF Declaring Threshold registers.
The alarm is removed (SFBERV is set low) when the bit error rate is below
the threshold programmed in the RASE SF Clearing Threshold registers.
SDBERI:
The SDBERI bit is set high when the signal degrade threshold crossing alarm
is declared or removed. This bit is cleared when the RASE Interrupt Status
register is read.
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SFBERI:
The SFBERI bit is set high when the signal failure threshold crossing alarm is
declared or removed. This bit is cleared when the RASE Interrupt Status
register is read.
Z1/S1I:
The Z1/S1I bit is set high when a new synchronization status message is
extracted into the RASE Receive Z1/S1 register. This bit is cleared when the
RASE Interrupt Status register is read.
COAPSI:
The COAPSI bit is set high when a new APS code value is extracted into the
RASE Receive K1 and RASE Receive K2 registers. This bit is cleared when
the RASE Interrupt Status register is read.
PSBFI:
The PSBFI bit is set high when the protection switching byte failure alarm is
declared or removed. This bit is cleared when the RASE Interrupt Status
register is read.
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Register 0xE2: RASE Configuration/Control
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
Z1/S1_CAP
SFBERTEN
SFSMODE
SFCMODE
SDBERTEN
SDSMODE
SDCMODE
Unused
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
X
SDCMODE:
The SDCMODE alarm bit selects the RASE window size to use for clearing
the SD alarm. When SDCMODE is a logic zero the RASE clears the SD alarm
using the same window size used for declaration. When SDCMODE is a logic
one the RASE clears the SD alarm using a window size that is 8 times longer
than the alarm declaration window size.The declaration window size is
determined by the RASE SD Accumulation Period registers.
SDSMODE:
The SDSMODE bit selects the RASE saturation mode. When SDSMODE is a
logic zero the RASE limits the number of B2 errors accumulated in one frame
period to the RASE SD Saturation Threshold register value. When SDSMODE
is a logic one the RASE limits the number of B2 errors accumulated in one
window subtotal accumulation period to the RASE SD Saturation Threshold
register value. Note that the number of frames in a window subtotal
accumulation period is determined by the RASE SD Accumulation Period
register value.
SDBERTEN:
The SDBERTEN bit selects automatic monitoring of line bit error rate
threshold events by the RASE. When SDBERTEN is a logic one, the RASE
continuously monitors line BIP errors over a period defined in the RASE
configuration registers. When SDBERTEN is a logic zero, the RASE BIP
accumulation logic is disabled, and the RASE logic is reset to the declaration
monitoring state.
All RASE accumulation period and threshold registers should be set up before
SDBERTEN is written.
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SFCMODE:
The SFCMODE alarm bit selects the RASE window size to use for clearing
the SF alarm. When SFCMODE is a logic zero the RASE clears the SF alarm
using the same window size used for declaration. When SFCMODE is a logic
one the RASE clears the SF alarm using a window size that is 8 times longer
than the alarm declaration window size.The declaration window size is
determined by the RASE SF Accumulation Period registers.
SFSMODE:
The SFSMODE bit selects the RASE saturation mode. When SFSMODE is a
logic zero the RASE limits the number of B2 errors accumulated in one frame
period to the RASE SF Saturation Threshold register value. When SFSMODE
is a logic one the RASE limits the number of B2 errors accumulated in one
window subtotal accumulation period to the RASE SF Saturation Threshold
register value. Note that the number of frames in a window subtotal
accumulation period is determined by the RASE SF Accumulation Period
register value.
SFBERTEN:
The SFBERTEN bit enables automatic monitoring of line bit error rate
threshold events by the RASE. When SFBERTEN is a logic one, the RASE
continuously monitors line BIP errors over a period defined in the RASE
configuration registers. When SFBERTEN is a logic zero, the RASE BIP
accumulation logic is disabled, and the RASE logic is reset to the declaration
monitoring state.
All RASE accumulation period and threshold registers should be set up before
SFBERTEN is written.
Z1/S1_CAP:
The Z1/S1_CAP bit enables the Z1/S1 Capture algorithm. When Z1/S1_CAP
is a logic one, the Z1/S1 clock synchronization status message nibble must
have the same value for eight consecutive frames before writing the new
value into the RASE Receive Z1/S1 register. When Z1/S1_CAP is logic zero,
the Z1/S1 nibble value is written directly into the RASE Receive Z1/S1
register.
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Register 0xE3: RASE SF Accumulation Period
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SFSAP[7]
SFSAP[6]
SFSAP[5]
SFSAP[4]
SFSAP[3]
SFSAP[2]
SFSAP[1]
SFSAP[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Register 0xE4: RASE SF Accumulation Period
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SFSAP[15]
SFSAP[14]
SFSAP[13]
SFSAP[12]
SFSAP[11]
SFSAP[10]
SFSAP[9]
SFSAP[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
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Register 0xE5: RASE SF Accumulation Period
Bit
Type
Function
SFSAP[23]
SFSAP[22]
SFSAP[21]
SFSAP[20]
SFSAP[19]
SFSAP[18]
SFSAP[17]
SFSAP[16]
Default
Bit 7 R/W
Bit 6 R/W
Bit 5 R/W
Bit 4 R/W
Bit 3 R/W
Bit 2 R/W
Bit 1 R/W
Bit 0 R/W
0
0
0
0
0
0
0
0
SFSAP[23:0]:
The SFSAP[23:0] bits represent the number of 8 KHz frames used to
accumulate the B2 error subtotal.The total evaluation window to declare the
SF alarm is broken into 8 subtotals, so this register value represents 1/8 of
the total sliding window size. Refer to the Operations section for
recommended settings.
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Register 0xE6: RASE SF SaturationThreshold
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SFSTH[7]
SFSTH[6]
SFSTH[5]
SFSTH[4]
SFSTH[3]
SFSTH[2]
SFSTH[1]
SFSTH[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Register 0xE7: RASE SF SaturationThreshold
Bit
Type
Function
Unused
Unused
Unused
Unused
SFSTH[11]
SFSTH[10]
SFSTH[9]
SFSTH[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
0
0
0
0
R/W
R/W
R/W
R/W
SFSTH[11:0]:
The SFSTH[11:0] value represents the allowable number of B2 errors that can
be accumulated during an evaluation window before an SF threshold event is
declared. Setting this threshold to 0xFFF disables the saturation functionality.
Refer to the Operations section for the recommended settings.
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Register 0xE8: RASE SF DeclaringThreshold
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SFDTH[7]
SFDTH[6]
SFDTH[5]
SFDTH[4]
SFDTH[3]
SFDTH[2]
SFDTH[1]
SFDTH[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Register 0xE9: RASE SF DeclaringThreshold
Bit
Type
Function
Unused
Unused
Unused
Unused
SFDTH[11]
SFDTH[10]
SFDTH[9]
SFDTH[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
0
0
0
0
R/W
R/W
R/W
R/W
SFDTH[11:0]:
The SFDTH[11:0] value determines the threshold for the declaration of the SF
alarm. The SF alarm is declared when the number of B2 errors accumulated
during an evaluation window is greater than or equal to the SFDTH[11:0]
value. Refer to the Operations section for the recommended settings.
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Register 0xEA: RASE SF ClearingThreshold
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SFCTH[7]
SFCTH[6]
SFCTH[5]
SFCTH[4]
SFCTH[3]
SFCTH[2]
SFCTH[1]
SFCTH[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Register 0xEB: RASE SF ClearingThreshold
Bit
Type
Function
Unused
Unused
Unused
Unused
SFCTH[11]
SFCTH[10]
SFCTH[9]
SFCTH[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
0
0
0
0
R/W
R/W
R/W
R/W
SFCTH[11:0]:
The SFCTH[11:0] value determines the threshold for the removal of the SF
alarm. The SF alarm is removed when the number of B2 errors accumulated
during an evaluation window is less than the SFCTH[11:0] value. Refer to the
Operations section for the recommended settings.
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Register 0xEC: RASE SD Accumulation Period
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SDSAP[7]
SDSAP[6]
SDSAP[5]
SDSAP[4]
SDSAP[3]
SDSAP[2]
SDSAP[1]
SDSAP[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Register 0xED: RASE SD Accumulation Period
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SDSAP[15]
SDSAP[14]
SDSAP[13]
SDSAP[12]
SDSAP[11]
SDSAP[10]
SDSAP[9]
SDSAP[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
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Register 0xEE: RASE SD Accumulation Period
Bit
Type
Function
SDSAP[23]
SDSAP[22]
SDSAP[21]
SDSAP[20]
SDSAP[19]
SDSAP[18]
SDSAP[17]
SDSAP[16]
Default
Bit 7 R/W
Bit 6 R/W
Bit 5 R/W
Bit 4 R/W
Bit 3 R/W
Bit 2 R/W
Bit 1 R/W
Bit 0 R/W
0
0
0
0
0
0
0
0
SDSAP[23:0]:
The SDSAP[23:0] bits represent the number of 8 KHz frames used to
accumulate the B2 error subtotal.The total evaluation window to declare the
SD alarm is broken into 8 subtotals, so this register value represents 1/8 of
the total sliding window size. Refer to the Operations section for
recommended settings.
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Register 0xEF: RASE SD SaturationThreshold
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SDSTH[7]
SDSTH[6]
SDSTH[5]
SDSTH[4]
SDSTH[3]
SDSTH[2]
SDSTH[1]
SDSTH[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Register 0xF0: RASE SD SaturationThreshold
Bit
Type
Function
Unused
Unused
Unused
Unused
SDSTH[11]
SDSTH[10]
SDSTH[9]
SDSTH[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
0
0
0
0
R/W
R/W
R/W
R/W
SDSTH[11:0]:
The SDSTH[11:0] value represents the allowable number of B2 errors that
can be accumulated during an evaluation window before an SD threshold
event is declared. Setting this threshold to 0xFFF disables the saturation
functionality. Refer to the Operations section for the recommended settings.
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Register 0xF1: RASE SD DeclaringThreshold
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SDDTH[7]
SDDTH[6]
SDDTH[5]
SDDTH[4]
SDDTH[3]
SDDTH[2]
SDDTH[1]
SDDTH[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Register 0xF2: RASE SD DeclaringThreshold
Bit
Type
Function
Unused
Unused
Unused
Unused
SDDTH[11]
SDDTH[10]
SDDTH[9]
SDDTH[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
0
0
0
0
R/W
R/W
R/W
R/W
SDDTH[11:0]:
The SDDTH[11:0] value determines the threshold for the declaration of the
SD alarm. The SD alarm is declared when the number of B2 errors
accumulated during an evaluation window is greater than or equal to the
SDDTH[11:0] value. Refer to the Operations section for the recommended
settings.
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Register 0xF3: RASE SD ClearingThreshold
Bit
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
SDCTH[7]
SDCTH[6]
SDCTH[5]
SDCTH[4]
SDCTH[3]
SDCTH[2]
SDCTH[1]
SDCTH[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
0
Register 0xF4: RASE SD ClearingThreshold
Bit
Type
Function
Unused
Unused
Unused
Unused
SDCTH[11]
SDCTH[10]
SDCTH[9]
SDCTH[8]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
0
0
0
0
R/W
R/W
R/W
R/W
SDCTH[11:0]:
The SDCTH[11:0] value determines the threshold for the removal of the SD
alarm. The SD alarm is removed when the number of B2 errors accumulated
during an evaluation window is less than the SDCTH[11:0] value. Refer to the
Operations section for the recommended settings.
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Register 0xF5: RASE Receive K1
Bit
Type
R
R
R
R
R
R
R
R
Function
K1[7]
K1[6]
K1[5]
K1[4]
K1[3]
K1[2]
K1[1]
K1[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
K1[7:0]:
The K1[7:0] bits contain the current K1 code value. The contents of this
register are updated when a new K1 code value (different from the current K1
code value) is received for three consecutive frames. An interrupt may be
generated when a new code value is received (using the COAPSE bit in the
RASE Interrupt Enable Register). K1[7] is the most significant bit
corresponding to bit 1, the first bit received. K1[0] is the least significant bit,
corresponding to bit 8, the last bit received.
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Register 0xF6: RASE Receive K2
Bit
Type
R
R
R
R
R
R
R
R
Function
K2[7]
K2[6]
K2[5]
K2[4]
K2[3]
K2[2]
K2[1]
K2[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
K2[7:0]:
The K2[7:0] bits contain the current K2 code value. The contents of this
register are updated when a new K2 code value (different from the current K2
code value) is received for three consecutive frames. An interrupt may be
generated when a new code value is received (using the COAPSE bit in the
RASE Interrupt Enable Register). K2[7] is the most significant bit
corresponding to bit 1, the first bit received. K2[0] is the least significant bit,
corresponding to bit 8, the last bit received.
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Register 0xF7: RASE Receive Z1/S1
Bit
Type
R
R
R
R
R
R
R
R
Function
Z1/S1[7]
Z1/S1[6]
Z1/S1[5]
Z1/S1[4]
Z1/S1[3]
Z1/S1[2]
Z1/S1[1]
Z1/S1[0]
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
Z1/S1[3:0]:
The lower nibble of the first Z1/S1 byte contained in the receive stream is
extracted into this register. The Z1/S1 byte is used to carry synchronization
status messages between line terminating network elements. Z1/S1[3] is the
most significant bit corresponding to bit 5, the first bit received. Z1/S1[0] is
the least significant bit, corresponding to bit 8, the last bit received. An
interrupt may be generated when a byte value is received that differs from the
value extracted in the previous frame (using the Z1/S1E bit in the RASE
Interrupt Enable Register). In addition, debouncing can be performed where
the register is not loaded until eight of the same consecutive nibbles are
received. Debouncing is controlled using the Z1/S1_CAP bit in the RASE
Configuration/Control register.
Z1/S1[7:4]:
The upper nibble of the first Z1/S1 byte contained in the receive stream is
extracted into this register. No interrupt is asserted on the change of this
nibble. In addition, when the Z1/S1_CAP bit in the RASE
Configuration/Control register selects debouncing, the upper nibble is only
updated when eight of the same consecutive lower nibbles are received.
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12 TEST FEATURES DESCRIPTION
Simultaneously asserting (low) the CSB, RDB and WRB inputs causes all digital
output pins and the data bus to be held in a high-impedance state. This test
feature may be used for board testing.
Test mode registers are used to apply test vectors during production testing of
the S/UNI-QUAD. Test mode registers (as opposed to normal mode registers)
are selected when TRS (A[10]) is high.
Test mode registers may also be used for board testing. When all of the TSBs
within the S/UNI-QUAD are placed in test mode 0, device inputs may be read and
device outputs may be forced via the microprocessor interface (refer to the
section "Test Mode 0" for details).
In addition, the S/UNI-QUAD also supports a standard IEEE 1149.1 five-signal
JTAG boundary scan test port for use in board testing. All digital device inputs
may be read and all digital device outputs may be forced via the JTAG test port.
Table 6:Test Mode Register Memory Map
Address
Register
0x000-0x3FF
0x400
0x401-0x7FF
Normal Mode Registers
Master Test Register
Reserved For Test
12.1 MasterTest Register
Notes onTest Mode Register Bits:
1. Writing values into unused register bits has no effect. However, to ensure
software compatibility with future, feature-enhanced versions of the product,
unused register bits must be written with logic zero. Reading back unused
bits can produce either a logic one or a logic zero; hence, unused register bits
should be masked off by software when read.
2. Writable test mode register bits are not initialized upon reset unless otherwise
noted.
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Register 0x400: MasterTest
Bit
Type
Function
Default
Unused
Reserved
PMCATST
PMCTST
DBCTRL
IOTST
X
X
X
X
0
0
0
0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
W
W
W
W
R/W
W
HIZDATA
HIZIO
R/W
This register is used to enable S/UNI-QUAD test features. All bits, except
PMCTST, PMCATST and BYPASS are reset to zero by a reset of the
S/UNI-QUAD using either the RSTB input or the Master Reset register. PMCTST
and BYPASS are reset when CSB is logic one. PMCATST is reset when both
CSB is high and RSTB is low. PMCTST, PMCATST and BYPASS can also be
reset by writing a logic zero to the corresponding register bit.
HIZIO, HIZDATA:
The HIZIO and HIZDATA bits control the tri-state modes of the S/UNI-QUAD .
While the HIZIO bit is a logic one, all output pins of the S/UNI-QUAD except
the data bus and output TDO are held tri-state. The microprocessor interface
is still active. While the HIZDATA bit is a logic one, the data bus is also held in
a high-impedance state which inhibits microprocessor read cycles. The
HIZDATA bit is overridden by the DBCTRL bit.
IOTST:
The IOTST bit is used to allow normal microprocessor access to the test
registers and control the test mode in each TSB block in the S/UNI-QUAD for
board level testing. When IOTST is a logic one, all blocks are held in test
mode and the microprocessor may write to a block's test mode 0 registers to
manipulate the outputs of the block and consequentially the device outputs
(refer to the "Test Mode 0 Details" in the "Test Features" section).
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DBCTRL:
The DBCTRL bit is used to pass control of the data bus drivers to the CSB
pin. When the DBCTRL bit is set to logic one and either IOTST or PMCTST
are logic one, the CSB pin controls the output enable for the data bus. While
the DBCTRL bit is set, holding the CSB pin high causes the S/UNI-QUAD to
drive the data bus and holding the CSB pin low tri-states the data bus. The
DBCTRL bit overrides the HIZDATA bit. The DBCTRL bit is used to measure
the drive capability of the data bus driver pads.
PMCTST:
The PMCTST bit is used to configure the S/UNI-QUAD for PMC's
manufacturing tests. When PMCTST is set to logic one, the S/UNI-QUAD
microprocessor port becomes the test access port used to run the PMC
"canned" manufacturing test vectors. The PMCTST bit is logically "ORed"
with the IOTST bit, and can be cleared by setting CSB to logic one or by
writing logic zero to the bit.
PMCATST:
The PMCATST bit is used to configure the analog portion of the S/UNI-QUAD
for PMC's manufacturing tests.
Reserved:
The reserved bit must be programmed to logic one for proper operation.
12.2 Test Mode 0 Details
In test mode 0, the S/UNI-QUAD allows the logic levels on the device inputs to be
read through the microprocessor interface and allows the device outputs to be
forced to either logic level through the microprocessor interface. The IOTST bit in
the Master Test register must be set to logic one to access the device I/O.
To enable test mode 0, the IOTST bit in the Master Test register is set to logic one
and the following addresses must be written with 00H:TBD.
Reading the following address locations returns the values on the indicated
inputs:
Table 7:Test Mode 0 Read Locations
Addr
08H
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0FH
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Addr
8BH
8CH
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
The following inputs cannot be read using the IOTST feature: D[7:0], A[7:0], ALE,
CSB, WRB, RDB, RSTB, TRSTB, TMS, TCK, and TDI.
Writing the following address locations forces the outputs to the value in the
corresponding bit position (zeros should be written to all unused test register
locations):
Table 8:Test Mode 0 Write Locations
Addr
06H
8BH
8CH
90H
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
The following outputs can not be controlled using the IOTST feature: D[7:0], and
TDO.
1. INT corresponds to output INTB. INTB is an open drain output and should be
pulled high for proper operation. Writing a logic one to the INT bit allows the
S/UNI-QUAD to drive INTB low. Writing a logic zero to the INT bit tristates the
INTB output.
12.3 JTAGTest Port
The S/UNI-QUAD JTAG Test Access Port (TAP) allows access to the TAP
controller and the 4 TAP registers: instruction, bypass, device identification and
boundary scan. Using the TAP, device input logic levels can be read, device
outputs can be forced, the device can be identified and the device scan path can
be bypassed. For more details on the JTAG port, please refer to the Operations
section.
Table 9: Instruction Register (Length - 3 bits)
Instructions
Selected Register
Instruction Codes,
IR[2:0]
EXTEST
Boundary Scan
000
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Instructions
Selected Register
Instruction Codes,
IR[2:0]
IDCODE
SAMPLE
BYPASS
BYPASS
STCTEST
BYPASS
BYPASS
Identification
Boundary Scan
Bypass
001
010
011
100
101
110
111
Bypass
Boundary Scan
Bypass
Bypass
Table 10: Identification Register
Length
32 bits
0H
Version number
Part Number
5349H
Manufacturer's identification code
Device identification
0CDH
053490CDH
Table 11: Boundary Scan Register
Length - 155 bits
Pin/
Register
Bit
Cell Type
I.D. Bit Pin/ Enable
Register
Bit
Cell Type
I.D. Bit
Enable
A[7:0]5
154:147
IN_CELL
00000
101
ALE
146
IN_CELL
IN_CELL
IN_CELL
IN_CELL
IN_CELL
IO_CELL
0
0
1
1
0
CSB
145
WRB
RDB
RSTB
D[7:0]
144
143
142
141:134
10101
010
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NOTES:
1. OENB is the active low output enable for D[7:0].
2. RDATENB is the active low output enable for RSOC, RDAT[15:0], and
RXPRTY[1:0].
3. When set high, INTB will be set to high impedance.
4. HIZ is the active low output enable for all OUT_CELL types except D[7:0],
RXPRTY[1:0], RDAT[15:0], and INTB
5. A[7] is the first bit of the boundary scan chain.
12.3.1 Boundary Scan Cells
In the following diagrams, CLOCK-DR is equal to TCK when the current controller
state is SHIFT-DR or CAPTURE-DR, and unchanging otherwise. The multiplexer
in the center of the diagram selects one of four inputs, depending on the status of
select lines G1 and G2.The ID Code bit is as listed in the Boundary Scan
Register table located above.
Figure 6: Input Observation Cell (IN_CELL)
IDCODE
Scan Chain Out
INPUT
to internal
Input
Pad
logic
G1
G2
SHIFT-DR
1 2
1 2
1 2
1 2
D
MUX
C
I.D. Code bit
CLOCK-DR
Scan Chain In
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Figure 7: Output Cell (OUT_CELL)
Scan Chain Out
G1
1
EXTEST
Output or Enable
from system logic
OUTPUT
or Enable
MUX
1
G1
G2
IDOODE
SHIFT-DR
1 2
1 2 MUX
1 2
D
D
C
I.D. code bit
C
1 2
CLOCK-DR
UPDATE-DR
Scan Chain In
Figure 8: Bidirectional Cell (IO_CELL)
Scan Chain Out
INPUT
to internal
logic
G1
EXTEST
OUTPUT from
internal logic
1
OUTPUT
to pin
MUX
IDCODE
1
G1
G2
SHIFT-DR
INPUT
from pin
1 2
1 2
1 2
1 2
D
MUX
D
C
I.D. code bit
C
CLOCK-DR
UPDATE-DR
Scan Chain In
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Figure 9: Layout of Output Enable and Bidirectional Cells
Scan Chain Out
OUTPUT ENABLE
OUT_CELL
from internal
logic (0 = drive)
INPUT to
internal logic
IO_CELL
I/O
PAD
OUTPUT from
internal logic
Scan Chain In
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13 OPERATION
13.1 SONET/SDH Frame Mappings and Overhead Byte Usage
13.1.1 ATM Mapping
The S/UNI-QUAD processes the ATM cell mapping for STS-3c (STM-1) as shown
below in Figure 10. The S/UNI-QUAD processes the transport and path
overhead required to support ATM UNIs and NNIs. In addition, the S/UNI-QUAD
provides support for the APS bytes. In Figure 10, the STS-3c (STM-1) mapping
is shown. In this mapping, no stuff columns are included in the SPE.The entire
SPE is used for ATM cells.
Figure 10: ATM Mapping into the STS-3c (STM-1) SPE
270 bytes
9
261 bytes
bytes
Section
Overhead
(Regen.
Section)
ATM Cell
B3
C2
G1
Pointer
9
bytes
ATM Cell
Line
H4
Overhead
(M ultiplex
Section)
ATM Cell
ATM Cell
STS-3c Transport Overhead
STM-1 Section Overhead
A1 A1 A1 A2 A2 A2 J0 Z0 Z0
B1
H1 H1 H1 H2 H2 H2 H3 H3 H3
B2 B2 B2 K1
K2
S1
M1 E2
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13.1.2 Transport and Path Overhead Bytes
Under normal operating conditions, the S/UNI-QUAD processes a subset of the
complete transport overhead present in an STS-3c (STM-1) stream. The byte
positions processed by the S/UNI-QUAD are indicated in Figure 11.
Figure 11: STS-3c (STM-1) Overhead
A1
B1
A1
A1
A2
A2
H 2
A2
H 2
J0
Z0
Z0
B 3
C 2
G 1
H1
B2
H1
B2
H1
B2
H 2
K 1
H3
K2
H3
H3
H 4
S1
M 1
TRANSPORT OVERHEAD
SOH
PATH OVERHEAD
POH
Transport Overhead Bytes
A1, A2:
Z0:
The frame alignment bytes (A1, A2) locate the SONET/SDH
frame in the STS-3c (STM-1) serial stream.
The Z0 bytes are currently defined as the STS-3c (STM-1) section
growth bytes for SONET/SDH. Z0 bytes are not scrambled by the
frame synchronous scrambler.
B1:
The section bit interleaved parity byte provides a section error
monitoring function.
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H1, H2:
The pointer value bytes locate the path overhead column in the
SONET/SDH frame.
H3:
The pointer action bytes contain synchronous payload envelope
data when a negative stuff event occurs. The all zeros pattern is
inserted in the transmit direction. This byte is ignored in the
receive direction unless a negative stuff event is detected.
B2:
The line bit interleaved parity bytes provide a line error monitoring
function.
K1, K2:
The K1 and K2 bytes provide the automatic protection switching
channel. The K2 byte is also used to identify line layer
maintenance signals. Line RDI is indicated when bits 6, 7, and 8
of the K2 byte are set to the pattern '110'. Line AIS is indicated
when bits 6, 7, and 8 of the K2 byte are set to the pattern '111'.
S1:
The S1 byte provides the synchronization status byte. Bits 5
through 8 of the synchronization status byte identifies the
synchronization source of the STS-3c (STM-1) signal. Bits 1
through 4 are currently undefined.
M1:
The M1 byte is located in the third STS-1 locations of a STS-3c
(STM-1) and provides a line far end block error function for
remote performance monitoring.
Path Overhead Bytes
J1:
B3:
C2:
G1:
This byte is set to transmit continuous null characters. Null is
defined as the ASCII code, 0x00.
The path bit interleaved parity byte provides a path error
monitoring function.
The path signal label indicator identifies the equipped payload
type. For ATM payloads, the identification code is 0x13
The path status byte provides a path FEBE function, and a path
remote defect indication function. Three bits are allocated for
remote defect indications: bit 5 (the path RDI bit), bit 6 (the
auxiliary path RDI bit) and bit 7 (Enhanced RDI bit). Taken
together these bits provide a eight state path RDI code that can
be used to categorize path defect indications.
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H4:
The multiframe indicator byte is a payload specific byte, and is not
used for ATM payloads.
13.2 ATM Cell Data Structure
ATM cells may be passed to/from the S/UNI-QUAD using a twenty-seven word,
16-bit Utopia level 2 compliant data structure. This data structure is shown in
Figure 12.
Figure 12: 16-bit Wide, 27 Word ATM Cell Structure
Bit 15
Bit 8
Bit 7
Bit 0
Word 1
Word 2
Word 3
Word 4
Word 5
Word 6
H1
H3
H5
H2
H4
HCS
STATUS/CONTROL
PAYLOAD1
PAYLOAD3
PAYLOAD5
PAYLOAD2
PAYLOAD4
PAYLOAD6
Word 27
PAYLOAD47
PAYLOAD48
Bit 15 of each word is the most significant bit (which corresponds to the first bit
transmitted or received). The header check sequence octet (HCS) is passed
through this structure. The start of cell indication input and output (TSOC and
RSOC) are coincident with Word 1 (containing the first two header octets). Word
3 of this structure contains the HCS octet in bits 15 to 8.
In the receive direction, the lower 8 bits of Word 3 contain the HCS status octet.
An all-zeros pattern in these 8 bits indicates that the associated header is error
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free. An all-ones pattern indicates that the header contains an uncorrectable
error (if the HCSPASS bit in the RXCP Control Register is set to logic zero, the
all-ones pattern will never be passed in this structure). An alternating ones and
zeros pattern (0xAA) indicates that the header contained a correctable error. In
this case the header passed through the structure is the "corrected" header.
In the transmit direction, the HCS bit in the TXCP Control register determines
whether the HCS is calculated internally or is inserted directly from the upper 8
bits of Word 3. The lower 8 bits of Word 3 contain the HCS control octet. The
HCS control octet is an error mask that allows the insertion of one or more errors
in the HCS octet. A logic one in a given bit position causes the inversion of the
corresponding HCS bit position (for example a logic one in bit 7 causes the most
significant bit of the HCS to be inverted).
13.3 Bit Error Rate Monitor
The S/UN-QUAD provides two BERM blocks. One can be dedicated to monitor at
the Signal Degrade (SD) error rate and the other dedicated to monitor at the
Signal Fail (SF) error rate.
The Bit Error Rate Monitor (BERM) block counts and monitor line BIP errors over
programmable periods of time (window size). It can monitor to declare an alarm
or to clear it if the alarm is already set. A different threshold and accumulation
period must be used to declare or clear the alarm, whether or not those two
operations are not performed at the same BER.The following table list the
recommended content of the BERM registers for different error rates (BER). Both
BERMs in the TSB are equivalent and are programmed similarly. In a normal
application they will be set to monitor different BER.
When the SF/SD CMODE bit is 1 this indicates that the clearing monitoring is
recommended to be performed using a window size that is 8 times longer than
the declaration window size. When the SF/SD CMODE bit is 0 this indicates that
the clearing monitoring is recommended to be performed using a window size
equal to the declaration window size. In all cases the clearing threshold is
calculated for a BER that is 10 times lower than the declaration BER, as required
in the references.The table indicates the declare BER and evaluation period only.
The Saturation threshold is not listed in the table, and should be programmed
with the value 0xFFF by default, deactivating saturation. Saturation capabilities
are provided to allow the user to address issues associated with error bursts.
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Table 12: Recommended BERM settings
declare Eval Per SF/SD SF/SD SF/SD SF/SD SF/SD
BER
(s)
0.008
0.013
0.100
SMODE CMODE SAP
DTH
CTH
-3
-4
-5
-6
-7
-8
-9
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0x000008 0x245 0x083
0x00000D 0x0A3 0x0B4
0x000064 0x084 0x08E
0x0003E8 0x085 0x08E
0x002710 0x085 0x08E
0x014438 0x06D 0x077
0x0A2D78 0x055 0x061
10
10
10
10
10
10
10
1.000
10.000
83.000
667.000
It is important to notice that the Table 12 was designed around the Bellcore
GR-253 specification. Please refer to the SONET/SDH/SDH Bit error Threshold
Monitoring application note for more details as well as a recommended
programming meeting the ITU G.783 specification.
13.4 Clocking Options
The S/UNI-QUAD supports several clocking modes. Figure 13 is an abstraction
of the clocking topology.
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Figure 13: Conceptual Clocking Structure
Conceptual Clocking Structure
REFCLK
Internal
Tx Clock
Source
Clock Synthesizer
A
Mode A
B
Source timed
÷8
÷8
TCLK
Internal
Rx Clock
Source
Mode B
Internally
Loop timed
Clock Recovery
RXD+/-
RCLK
Mode A is provided for all public user network interfaces (UNIs) and for private
UNIs and private network node interfaces (NNIs) that are not synchronized to the
recovered clock.
The transmit clock in a private UNI or a private NNI may be locked to an external
reference or may free-run. The simplest implementation requires an oscillator
free-running at 19.44 MHz.
Mode A is selected by clearing the LOOPT bit of the Channel Control register.
REFCLK is multiplied by 8 to become the 155.52 MHz MHz transmit clock.
REFCLK must be jitter free. The source REFCLK is also internally used as the
clock recovery reference.
Mode B is provided for private UNIs and private NNIs that require synchronization
to the recovered clock. Mode B is selected by setting the LOOPT bit of the Master
Control register. Normally, the transmit clock is locked to the receive data. In the
event of a loss of signal condition, the transmit clock is synthesized from
REFCLK.
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13.5 Loopback Operation
The S/UNI-QUAD supports three loopback functions: line loopback, parallel
diagnostic loopback and serial diagnostic loopback. Each channel's loopback
modes operate independently. The loopback modes are activated by the PDLE,
LLE and SDLE bits contained in the S/UNI-QUAD Channel Control Register.
The line loopback, see Figure 14, connects the high speed receive data and
clock to the high speed transmit data and clock, and can be used for line side
investigations (including clock recovery and clock synthesis). While in this mode,
the entire receive path is operating normally and cells can be received through
the FIFO interface.
The serial diagnostic loopback, see Figure 15, connects the high speed transmit
data and clock to the high speed receive data and clock. While in this mode, the
entire transmit path is operating normally and data is transmitted on the TXD+/-
outputs.
The parallel diagnostic loopback, see Figure 16, connects the byte wide transmit
data and clock to the byte wide receive data and clock. While in this mode, the
entire transmit path is operating normally and data is transmitted on the TXD+/-
outputs.
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Figure 14: Line Loopback Mode
TRSTB
TCK
INTB
RSTB
RDB
W RB
CSB
Utopia
System Interface
TMS
TDI
TDO
ALE
A[10:0]
D[7:0]
RCLK1-4
RFPO1-4
RALRM1-4
TCLK
TFPO
TFPI
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Figure 15: Serial Diagnostic Loopback Mode
TRSTB
TCK
INTB
RSTB
Utopia
System Interface
RDB
W RB
CSB
TMS
TDI
TDO
ALE
A[10:0]
D[7:0]
RCLK1-4
RFPO1-4
RALRM1-4
TCLK
TFPO
TFPI
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Figure 16: Parallel Diagnostic Loopback Mode
TRSTB
TCK
INTB
RSTB
Utopia
System Interface
RDB
W RB
CSB
TMS
TDI
TDO
ALE
A[10:0]
D[7:0]
RCLK1-4
RFPO1-4
RALRM1-4
TCLK
TFPO
TFPI
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13.6 JTAG Support
The S/UNI-QUAD supports the IEEE Boundary Scan Specification as described
in the IEEE 1149.1 standards. The Test Access Port (TAP) consists of the five
standard pins, TRSTB, TCK, TMS, TDI and TDO used to control the TAP
controller and the boundary scan registers. The TRSTB input is the active-low
reset signal used to reset the TAP controller. TCK is the test clock used to
sample data on input, TDI and to output data on output, TDO. The TMS input is
used to direct the TAP controller through its states. The basic boundary scan
architecture is shown below.
Figure 17: Boundary Scan Architecture
Boundary Scan
TDI
Register
Device Identification
Register
Bypass
Register
Instruction
Register
and
Mux
DFF
TDO
Decode
Control
TMS
Test
Access
Port
Select
Tri-state Enable
Controller
TRSTB
TCK
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The boundary scan architecture consists of a TAP controller, an instruction
register with instruction decode, a bypass register, a device identification register
and a boundary scan register. The TAP controller interprets the TMS input and
generates control signals to load the instruction and data registers. The
instruction register with instruction decode block is used to select the test to be
executed and/or the register to be accessed. The bypass register offers a single-
bit delay from primary input, TDI to primary output, TDO. The device identification
register contains the device identification code.
The boundary scan register allows testing of board inter-connectivity. The
boundary scan register consists of a shift register place in series with device
inputs and outputs. Using the boundary scan register, all digital inputs can be
sampled and shifted out on primary output, TDO. In addition, patterns can be
shifted in on primary input, TDI and forced onto all digital outputs.
13.6.1 TAP Controller
The TAP controller is a synchronous finite state machine clocked by the rising
edge of primary input, TCK. All state transitions are controlled using primary
input, TMS. The finite state machine is described below.
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Figure 18: TAP Controller Finite State Machine
TRSTB=0
Test-Logic-Reset
0
1
0
1
1
1
Run-Test-Idle
Select-IR-Scan
0
Select-DR-Scan
0
1
1
Capture-IR
0
Capture-DR
0
Shift-IR
1
Shift-DR
1
0
0
1
1
Exit1-IR
0
Exit1-DR
0
Pause-IR
1
Pause-DR
1
0
0
0
0
Exit2-IR
1
Exit2-DR
1
Update-IR
Update-DR
1
0
1
0
All transitions dependent on input TMS
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13.6.1.1
States
Test-Logic-Reset
The test logic reset state is used to disable the TAP logic when the device is in
normal mode operation. The state is entered asynchronously by asserting input,
TRSTB. The state is entered synchronously regardless of the current TAP
controller state by forcing input, TMS high for 5 TCK clock cycles. While in this
state, the instruction register is set to the IDCODE instruction.
Run-Test-Idle
The run test/idle state is used to execute tests.
Capture-DR
The capture data register state is used to load parallel data into the test data
registers selected by the current instruction. If the selected register does not
allow parallel loads or no loading is required by the current instruction, the test
register maintains its value. Loading occurs on the rising edge of TCK.
Shift-DR
The shift data register state is used to shift the selected test data registers by one
stage. Shifting is from MSB to LSB and occurs on the rising edge of TCK.
Update-DR
The update data register state is used to load a test register's parallel output
latch. In general, the output latches are used to control the device. For example,
for the EXTEST instruction, the boundary scan test register's parallel output
latches are used to control the device's outputs. The parallel output latches are
updated on the falling edge of TCK.
Capture-IR
The capture instruction register state is used to load the instruction register with a
fixed instruction. The load occurs on the rising edge of TCK.
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Shift-IR
The shift instruction register state is used to shift both the instruction register and
the selected test data registers by one stage. Shifting is from MSB to LSB and
occurs on the rising edge of TCK.
Update-IR
The update instruction register state is used to load a new instruction into the
instruction register. The new instruction must be scanned in using the Shift-IR
state. The load occurs on the falling edge of TCK.
The Pause-DR and Pause-IR states are provided to allow shifting through the
test data and/or instruction registers to be momentarily paused.
Boundary Scan Instructions
The following is an description of the standard instructions. Each instruction
selects an serial test data register path between input, TDI and output, TDO.
13.6.1.2
Instructions
BYPASS
The bypass instruction shifts data from input, TDI to output, TDO with one TCK
clock period delay. The instruction is used to bypass the device.
EXTEST
The external test instruction allows testing of the interconnection to other devices.
When the current instruction is the EXTEST instruction, the boundary scan
register is place between input, TDI and output, TDO. Primary device inputs can
be sampled by loading the boundary scan register using the Capture-DR state.
The sampled values can then be viewed by shifting the boundary scan register
using the Shift-DR state. Primary device outputs can be controlled by loading
patterns shifted in through input TDI into the boundary scan register using the
Update-DR state.
SAMPLE
The sample instruction samples all the device inputs and outputs. For this
instruction, the boundary scan register is placed between TDI and TDO. Primary
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device inputs and outputs can be sampled by loading the boundary scan register
using the Capture-DR state. The sampled values can then be viewed by shifting
the boundary scan register using the Shift-DR state.
IDCODE
The identification instruction is used to connect the identification register between
TDI and TDO. The device's identification code can then be shifted out using the
Shift-DR state.
STCTEST
The single transport chain instruction is used to test out the TAP controller and
the boundary scan register during production test. When this instruction is the
current instruction, the boundary scan register is connected between TDI and
TDO. During the Capture-DR state, the device identification code is loaded into
the boundary scan register. The code can then be shifted out output, TDO using
the Shift-DR state.
13.7 Board Design Recommendations
The noise environment and signal integrity are often the limiting factors in system
performance. Therefore, the following board design guidelines must be followed
in order to ensure proper operation:
1. Use a single plane for both digital and analog grounds.
2. Provide separate +3.3 volt analog transmit, +3.3 volt analog receive, and +3.3
volt digital supplies, but otherwise connect the supply voltages together at one
point close to the connector where +3.3 volts is brought to the card.
3. Ferrite beads are not advisable in digital switching circuits because inductive
spiking (di/dt noise) is introduced into the power rail. Simple RC filtering is
probably the best approach provided care is taken to ensure the IR drop in
the resistance does not lower the supply voltage below the recommended
operating voltage.
4. Separate high-frequency decoupling capacitors are recommended for each
analog power (TAVD, RAVD and QAVD) pin as close to the package pin as
possible. Separate decoupling is required to prevent the transmitter from
coupling noise into the receiver and to prevent transients from coupling into
some reference circuitry.
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5. The high speed serial streams (TXD+/- and RXD+/) must be routed with
controlled impedance circuit board traces and must be terminated with a
matched load. Normal CMOS-type design rules are not recommended and
will reduce the performance of the device.
13.8 Power Supply Sequencing
Due to ESD protection structures in the pads it is necessary to exercise caution
when powering a device up or down. ESD protection devices behave as diodes
between power supply pins and from I/O pins to power supply pins. Under
extreme conditions it is possible to blow these ESD protection devices or trigger
latch up. The recommended power supply sequencing follows:
1.) To prevent damage to the ESD protection on the device inputs the
maximum DC input current specification must be respected. This is
accomplished by either ensuring that the VDD power is applied before input
pins are driven or by increasing the source impedance of the driver so that
the maximum driver short circuit current is less than the maximum DC input
current specification. (20 mA)
2.) QAVD power must be supplied either after VDD or simultaneously with VDD
to prevent current flow through the ESD protection devices which exist
between QAVD and VDD power supplies. To prevent forward biasing the
ESD protection diode between QAVD supplies and VDD the differential
voltage measured between these power supplies must be less than 0.5 volt.
This recommended differential voltage is to include peak to peak noise on
the VDD power supply as digital noise will otherwise be coupled into the
analog circuitry. Current limiting can be accomplished by using an off chip
three terminal voltage regulator supplied by a quiet high voltage supply.
3.) BIAS voltage must be supplied either before VDD or simultaneously with
VDD to prevent current flow through the ESD protection devices which exist
between BIAS and VDD power supplies.
4.) Analog power supplies (AVD, includes RAVDs, TAVDs but not QAVD)
should be applied after QAVD, but can be applied at the same time as
QAVD providing the 100ohm resistor in series with QAVD (shown in Figure
29 and Figure 30) is in place. The AVD supplies should also be current
limited to the maximum latchup current specification (100 mA). To prevent
forward biasing the ESD protection diode between AVD supplies and QAVD
the differential voltage measured between these power supplies must be
less than 0.5 volt. This recommended differential voltage is to include peak
to peak noise on the QAVD and AVD power supplies as digital noise will
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otherwise be coupled into the analog circuitry. Current limiting can be
accomplished by using an off chip three terminal voltage regulator supplied
by a quiet high voltage supply. If the VDD power supply is relatively quiet,
VDD can be filtered using a ferrite bead and a high frequency decoupling
capacitor to supply AVD. The relative power sequencing of the multiple
AVD power supplies is not important.
5.) Power down the device in the reverse sequence. Use the above current
limiting technique for the analog power supplies. Small offsets in VDD /
AVD discharge times will not damage the device.
Figure 19 illustrates a power sequencing circuit to avoid latch-up or damage to
3.3V devices that are 5V tolerant. This circuit will ensure Vbias is greater than Vdd
and protect against designs which require the 3.3V power supply appearing
before the 5V supply.
Figure 19: Power Sequencing Circuit
1 K Ω
V bias
5 V
0.1µF
Schottky
Diode
3.3V
V dd
13.9 Analog Power Supply Filtering
The noise environment and signal integrity are often the limiting factors of the
system performance, thus the following analog power filtering scheme is
recommended.
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Figure 20: LAN Mode Analog Power Filters with 3.3V Supply
Ω
27
TAVD1_A
3.3V
+
4.7uF
0.1uF
2.7
Ω
TAVD1_B
3.3V
+
47uF
0.1uF
Ω
100
QAVD1
QAVD2
3.3V
+
0.1uF
NOTES
1) Use 0.1uF on all other analog and digital power pins
2) place 0.1uF as close to power pin as possible.
3) 47uF and resistors do not have to be very close to power pins
TAVD1_A is pin # L3
TAVD1_B is pin # L1
QAVD1 is pin # AA6
QAVD2 is pin # C6
Please note:
13.10 Interfacing to ECL or PECL Devices
Although the TXD+/- outputs are TTL compatible, only a few passive components
are required to convert the signals to ECL (or PECL) logic levels. Figure 21
illustrates the recommended configuration. The capacitors AC couple the outputs
so that the ECL inputs are free to swing around the ECL bias voltage (V ). The
BB
combination of the RS, RS1 and Z0 resistors divide the voltage down to a
nominally 800mV swing. The Z0 resistors also terminate the signals.
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The RXD+/- inputs to the S/UNI-QUAD are DC coupled as shown. The device
has a true PECL receiver so only termination resistors are required.
Ceramic coupling capacitors are recommended.
Figure 21: Interfacing to ECL or PECL
Optics
PMD
S/UNI-QUAD
RxD+
RD+
Zo
Zo
Rd
2*Zo
RxD-
TxD+
RD-
Rd
Gnd
Gnd
RS1
RS1
0.1 uF
TD+
TD-
Zo
Zo
Zo
Zo
0.1uF
TxD-
VDD
R1
VDD
0.01uF or
0.1 uF
Vdd * R2/(R1+R2) = Vbb
R2
Gnd
SD
SD
Rd
Gnd
Notes: Vpp is minimum input swing required by the optical PMD device.
Vbb is the switching threshold of the PMD device (typically Vdd - 1.3 volts)
Vpp is Voh - Vol (typically 800 mVolts)
Vpp = (Zo/((RS1+Rs)+Z0) * Vdd
- Vdd (S/UNI-QUAD’s analog transmit power) 3.3V
- Zo (trace impedance) typically 50Ω
- Rs (TxD source impedance) typically 15-20Ω
- RS1 : ~ 158Ω
For interfacing to 5.0V ODL, R1 : 237Ω , R2 : 698Ω
Rd : 330Ω
For interfacing to 3.3V ODL, R1 : 220Ω, R2: 330Ω
Rd : 150Ω
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13.11 Initializing the S/UNI-QUAD
The S/UNI-QUAD defaults to the Asynchronous Transfer Mode (ATM) operation
but it is recommended to implement the following initialization sequence.
1. Reset the device. This can be done by asserting the RSTB pin or setting the
RESET bit in the Master Reset and ID Register (Register 00).
2. Set the TPOP Path Signal Label (Register 0x48 ) to 0x13, which indicates an
ATM payload.
3. For every channel, reset all the Rx and Tx ATM FIFO’s by setting the
FIFORST register bit in the TXCP and RXCP blocks. Keep this bit set for at
least 1 µs, then set the bit back to its inactive logic zero value.
4. For every channel, reset the performance monitoring counters in TXCP and
RXCP blocks, and preferably in all the blocks. The easiest way to do this is to
use the TIP register bit.
13.12 Using the S/UNI-QUAD with a 5 Volt ODL
The S/UNI-QUAD defaults to a 3.3V PECL optical data link (ODL) module
interface. It can also be used with a 5V ODL. This is accomplished by setting to
logic 1 the PECLV bit located in the Master Configuration Register (Register
0x01). Notice that all four channels are reconfigured.
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14 FUNCTIONALTIMING
All functional timing diagrams assume that polarity control is not being applied to
input and output data and clock lines (i.e. polarity control bits in the S/UNI-QUAD
registers are set to their default states).
14.1 ATM Utopia Level 2 System Interface
Figure 22: Multi-PHY Polling and AddressingTransmit Cell Interface
TFCLK
CA(A)
CA(B)
CA(C)
X
CA(B)
CA(A)
TCA
TENB
A
1Fh
B
1Fh
C
1Fh
X
B
1Fh
A
1Fh
C
TADR[4:0]
TSOC
W (n-7) W (n-6) W (n-5) W (n-4) W (n-3) W (n-2) W (n-1) W (n)
X
X
W 1
W 2
W 3
W 4
TDAT[15:0]
TPRTY
Figure 66 is an example of the multi-PHY polling and selection sequence
supported by the S/UNI-QUAD. "A", "B", and "C" represent any arbitrary address
values of PHY devices which may be occupied by the S/UNI-QUAD. The ATM
Layer device is not restricted in its polling order. The PHY associated with
address "A" indicates it cannot accept a cell, but PHY "B" indicates it is willing to
accept a cell. As a result, the ATM Layer places address "B" on TADR[4:0] the
cycle before TENB is asserted to select PHY "B" as the next cell destination. In
this example, the PHY "C" status is ignored. The ATM Layer device is not
constrained to select the latest PHY polled. As soon as the cell transfer is
started, the polling process may be restarted.
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During multi-PHY operation, several PHY layer devices share the TCA signal. As
a result, this signals must be tri-stated in all PHY devices which have not been
selected for polling by the ATM Layer. The value of TADR[4:0] selects the PHY
being polled for the TCA signal, and all devices not corresponding to this address
must tri-state its TCA output. This multi-PHY operation is directly supported by
the S/UNI-QUAD.
Figure 23: Multi-PHY Polling and Addressing Receive Cell Interface
RFCLK
CA(A)
CA(B)
CA(C)
CA(B)
CA(D)
X
RCA
RENB
A
1Fh
B
1Fh
C
1Fh
X
B
1Fh
D
1Fh
E
RADR[4:0]
RSOC
W (n-7) W (n-6) W (n-5) W (n-4) W (n-3) W (n-2) W (n-1)
W(n)
W 1
W 2 W 3
RDAT[15:0]
RPRTY
Figure 67 shows an example of the multi-PHY polling and selection sequence
supported by the S/UNI-QUAD. "A", "B", "C", "D", and "E" represent any arbitrary
address values which may be occupied by the S/UNI-QUAD. The ATM Layer
device is not restricted in its polling order. The PHY associated with address "A"
indicates it does not have a cell available, but PHY "B" indicates that it does. As
a result, the ATM Layer places address "B" on RADR[4:0] the cycle before RENB
is asserted to select PHY "B" as the next cell source. In this example, PHY "C"s
status is ignored. The ATM Layer device is not constrained to select the latest
PHY polled. As soon as the cell transfer is started, the polling process may be
restarted.
During multi-PHY operation, several PHY layer devices share the RDAT[15:0],
RSOC, RPRTY, and RCA signals. As a result, these signals must be tri-stated in
all PHY devices which have not been selected for reading or polling by the ATM
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Layer. Selection of which PHY layer device is being read is made by the value on
RADR[4:0] the cycle before RENB is asserted and affects the RDAT[15:0],
RSOC, and RPRTY signals. The value of RADR[4:0] selects the PHY being
polled for the RCA signal, and all devices not corresponding to this address must
tri-state its RCA output. These multi-PHY operations are directly supported by
the S/UNI-QUAD.
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15 ABSOLUTE MAXIMUM RATINGS
Maximum rating are the worst case limits that the device can withstand without
sustaining permanent damage.They are not indicative of normal mode operation
conditions.
Table 13: Absolute Maximum Ratings
Ambient Temperature under Bias
Storage Temperature
Supply Voltage
-40°C to +85°C
-40°C to +125°C
-0.3V to +4.6V
(VDD - .3) to +5.5V
-0.3V to VBIAS+0.3V
±1000 V
Bias Voltage (VBIAS)
Voltage on Any Pin
Static Discharge Voltage
Latch-Up Current
±100 mA
DC Input Current
±20 mA
Lead Temperature
+230°C
Absolute Maximum Junction
Temperature
+150°C
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16 D.C. CHARACTERISTICS
T = -40°C to +85°C,V = 3.3V ±10%,V < BIAS < 5.5V
A
DD
DD
(Typical Conditions:T = 25°C,V = 3.3V,V = 5V)
BIAS
A
DD
Table 14: D.C Characteristics
Symbol Parameter
Power Supply
Min Typ Max Units Conditions
V
2.97 3.3 3.63 Volts
DD
BIAS
5V Tolerant Bias
VDD 5.0 5.5
0.8
Volts
V
V
V
Input Low Voltage
(TTL Only)
0
Volts Guaranteed Input Low
voltage.
IL
Input Low Voltage
(PECL Only)
A
A
Volts Guaranteed Input Low
voltage.
PIL
IH
VD
VD
- 1.8
- 1.6
Input High
Voltage
2.0
Volts Guaranteed Input High
voltage.
(TTL Only)
V
V
Input Low Voltage
(PECL Only)
A
–1.0
A
VD
–0.8
Volts Guaranteed Input High
voltage.
PIH
OL
VD
Output or Bi-
directional Low
Voltage
0.4
Volts Guaranteed output Low
voltage at VDD=2.97V and
I =maximum rated for
OL
pad. Note 4.
V
Output or Bi-
directional High
Voltage
2.4
2.0
Volts Guaranteed output High
voltage at VDD=2.97V and
OH
I
=maximum rated
OH
current for pad. Note 4.
V
V
V
Reset Input High
Voltage
Volts Applies to RSTB and
TRSTB only.
T+
T-
Reset Input Low
Voltage
0.8
Volts Applies to RSTB and
TRSTB only.
Reset Input
Hysteresis
Voltage
TBD
Volts Applies to RSTB and
TRSTB only.
TH
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I
I
Input Low Current -100 -50
-4
µA
µA
V = GND. Notes 1 and 3.
IL
ILPU
IHPU
Input High Current -10
0
+10
V
= V . Notes 1 and
DD
IH
3.
I
I
Input Low Current -10
Input High Current -10
Input Capacitance
0
0
5
5
+10
+10
µA
µA
pF
pF
V = GND. Notes 2 and 3.
IL
IL
V
= V . Notes 2 and 3.
DD
IH
IH
C
C
t =25°C, f = 1 MHz
A
IN
Output
t =25°C, f = 1 MHz
A
OUT
Capacitance
C
IO
Bi-directional
Capacitance
5
pF
t =25°C, f = 1 MHz
A
I
Operating Current
320 530
mA
V
DD
= 3.63V, Outputs
DDOP
Unloaded
Notes on D.C. Characteristics:
1. Input pin or bi-directional pin with internal pull-up resistor.
2. Input pin or bi-directional pin without internal pull-up resistor
3. Negative currents flow into the device (sinking), positive currents flow out of
the device (sourcing).
4. Refer to the footnotes at the bottom of the PIN DESCRIPTION table for the
DC current rating of each device output.
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17 MICROPROCESSOR INTERFACETIMING CHARACTERISTICS
(T = -40°C to +85°C,V = 3.3V ±10%)
A
DD
Table 15: Microprocessor Interface Read Access (Figure 24)
Symbol
Parameter
Min
10
5
Max
Units
ns
tS
Address to Valid Read Set-up Time
Address to Valid Read Hold Time
Address to Latch Set-up Time
Address to Latch Hold Time
AR
tH
ns
AR
tS
10
10
ns
ALR
tH
ns
ALR
tV
tS
L
Valid Latch Pulse Width
5
0
5
ns
ns
ns
ns
ns
ns
LR
Latch to Read Set-up
tH
LR
Latch to Read Hold
tP
Valid Read to Valid Data Propagation Delay
Valid Read Negated to Output Tri-state
Valid Read Negated to Output Tri-state
70
20
50
RD
tZ
RD
tZ
INTH
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Figure 24: Microprocessor Interface ReadTiming
tS
AR
A[10:0]
Valid
Address
tH
AR
tS
ALR
tV
tH
L
ALR
ALE
tH
tS
LR
LR
(CSB+RDB)
INTB
tZ
INTH
tZ
tP
RD
RD
D[7:0]
Valid Data
Notes on Microprocessor Interface ReadTiming:
1. Output propagation delay time is the time in nanoseconds from the 1.4 Volt
point of the reference signal to the 1.4 Volt point of the output.
2. Maximum output propagation delays are measured with a 100 pF load on the
Microprocessor Interface data bus, (D[7:0]).
3. A valid read cycle is defined as a logical OR of the CSB and the RDB signals.
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4. In non-multiplexed address/data bus architectures, ALE should be held high
so parameters tS , tH , tV , tS , and tH are not applicable.
ALR
ALR
L
LR
LR
5. Parameter tH
is not applicable if address latching is used.
AR
6. When a set-up time is specified between an input and a clock, the set-up time
is the time in nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt
point of the clock.
7. When a hold time is specified between an input and a clock, the hold time is
the time in nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt
point of the clock.
Table 16: Microprocessor Interface Write Access (Figure 25)
Symbol
Parameter
Min
10
Max
Units
ns
tS
tS
tS
Address to Valid Write Set-up Time
Data to Valid Write Set-up Time
Address to Latch Set-up Time
Address to Latch Hold Time
AW
20
ns
DW
ALW
10
ns
tH
10
ns
ALW
tV
tS
L
Valid Latch Pulse Width
Latch to Write Set-up
5
0
ns
ns
ns
ns
ns
ns
LW
tH
tH
tH
LW
DW
AW
WR
Latch to Write Hold
5
Data to Valid Write Hold Time
Address to Valid Write Hold Time
Valid Write Pulse Width
5
5
tV
40
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Figure 25: Microprocessor Interface WriteTiming
A[10:0]
Valid Address
tS
tH
ALW
ALW
tV
L
tS
tH
LW
LW
ALE
tS
tV
tS
tH
AW
AW
WR
(CSB+WRB)
D[7:0]
tH
DW
DW
Valid Data
Notes on Microprocessor Interface WriteTiming:
1 A valid write cycle is defined as a logical OR of the CSB and the WRB
signals.
2 In non-multiplexed address/data bus architectures, ALE should be held high
so parameters tS
, tH
, tV , tS , and tH are not applicable.
ALW
ALW LW LW
L
3 Parameter tH
is not applicable if address latching is used.
AW
4 When a set-up time is specified between an input and a clock, the set-up time
is the time in nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt
point of the clock.
5 When a hold time is specified between an input and a clock, the hold time is
the time in nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt
point of the clock.
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18 A.C.TIMING CHARACTERISTICS
(T = -40°C to +85°C,V = 3.3V ±10%)
A
DD
18.1 System ResetTiming
Table 17: RSTBTiming (Figure 26)
Description Min
RSTB Pulse Width 100
Symbol
tV
Max
Units
ns
RSTB
Figure 26: RSTBTiming Diagram
tV
RSTB
RSTB
18.2 ReferenceTiming
Line Side Reference Clock
Symbol
Description
Min
Max
Units
MHz
%
REFCLK Nominal Frequency
REFCLK Duty Cycle
19.44 19.44
30
70
REFCLK Frequency Tolerance
-50
+50
ppm
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18.3 ATM System InterfaceTiming
Table 18: Transmit ATM System InterfaceTiming (Figure 27)
Symbol
Description
TFCLK Frequency
Min
Max
50
Units
MHz
%
f
TFCLK
D
TFCLK
TFCLK Duty Cycle
40
3
60
tS
TENB Set-up time to TFCLK
ns
TENB
tH
tS
TENB Hold time to TFCLK
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
TENB
TADR
TADR[4:0] Set-up time to TFCLK
TADR[4:0] Hold time to TFCLK
TDAT[15:0] Set-up time to TFCLK
TDAT[15:0] Hold time to TFCLK
TPRTY Set-up time to TFCLK
TPRTY Hold time to TFCLK
TSOC Set-up time to TFCLK
TSOC Hold time to TFCLK
3
tH
0
TADR
tS
3
TDAT
tH
tS
0
3
0
3
0
1
1
1
0
TDAT
TPRTY
tH
TPRTY
tS
tH
TSOC
TSOC
DTCA
TCA
tP
tP
TFCLK High to DTCA[4:1] Valid
TFCLK High to TCA Valid
12
12
10
tZ
TFCLK High to TCA Tri-state
TFCLK High to TCA Driven
TCA
tZB
TCA
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Figure 27: Transmit ATM System InterfaceTiming Diagram
TFCLK
TENB
tS
tS
tS
tH
tH
TFCLK
TFCLK
TFCLK
TFCLK
TDAT[15:0]
tH
TFCLK
TFCLK
TFCLK
TPRTY
tH
tS
TFCLK
TSOC
tP
tZ
DTCA,
TCA
DTCA[x]/TCA
TCA
TCA
TCA
tZB
TCA
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Table 19: Receive ATM System InterfaceTiming (Figure 28)
Symbol
Description
RFCLK Frequency
Min
Max
50
Units
MHz
%
f
RFCLK
D
RFCLK
RFCLK Duty Cycle
40
3
60
tS
RENB Set-up time to RFCLK
ns
RENB
tH
tS
RENB Hold time to RFCLK
0
ns
ns
ns
RENB
RADR
RADR[4:0] Set-up time to RFCLK
RADR[4:0] Hold time to RFCLK
3
tH
0
RADR
tP
tZ
RFCLK High to RDAT Valid
RFCLK High to RDAT Tri-state
RFCLK High to RDAT Driven
1
1
0
12
12
ns
ns
ns
RDAT
RDAT
tZB
RDAT
tP
tZ
RFCLK High to RSOC Valid
1
1
12
12
ns
ns
RSOC
RFCLK High to RSOC Tri-state
RSOC
tZB
RFCLK High to RSOC Driven
0
ns
RSOC
tP
tZ
RFCLK High to RPRTY Valid
RFCLK High to RPRTY Tri-state
RFCLK High to RPRTY Driven
1
1
0
12
12
ns
ns
ns
RPRTY
RPRTY
tZB
RPRTY
tP
tZ
RFCLK High to RCA Valid
1
1
12
12
ns
ns
RCA
RFCLK High to RCA Tri-state
RCA
tZB
RFCLK High to RCA Driven
0
1
ns
ns
RCA
tP
RFCLK High to DRCA[4:1] Valid
12
DRCA
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Figure 28: Receive ATM System InterfaceTiming Diagram
RFCLK
tS
tH
RADR
RENB
RADR
RENB
RADR[4:0]
RENB
tP
RDAT, RSOC,
RPRTY
RDAT[15:0]
RXPRTY
RSOC
tZ
RDAT, RSOC,
RPRTY
RDAT[15:0]
RXPRTY
RSOC
tZB
RDAT, RSOC,
RPRTY
RDAT[15:0]
RXPRTY
RSOC
tP
DRCA
DRCA[4:1]
tP
RCA
RCA
tZ
RCA
RCA
RCA
tZB
RCA
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18.4 Transmit and Receive Frame Pulses
Table 20: Transmit and Receive Frame PulseTiming (Figure 29)
Symbol
tS
Description
Min
15
0
Max
Units
ns
TFPI Set-up Time to TCLK High
TFPI Hold Time to TCLK High
TCLK High to TFPO Valid
RCLK1-4 High to RFPO1-4 Valid
TFPI
tH
ns
TFPI
tP
tP
0
10
10
ns
TFPO
RFPO
0
ns
Figure 29: Transmit and Receive Frame Pulses
TCLK
TFPI
tS
tH
TFPI
TFPI
tP
TFPO
TFPO
RCLK1-4
RFPO1-4
tP
RFPO
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18.5 JTAGTest PortTiming
Table 21: JTAG Port Interface (Figure 30)
Symbol
Description
Min
Max
Units
TCK Frequency
1
MHz
%
TCK Duty Cycle
40
50
50
50
50
2
60
tSTMS
tHTMS
tSTDI
TMS Set-up time to TCK
TMS Hold time to TCK
TDI Set-up time to TCK
TDI Hold time to TCK
TCK Low to TDO Valid
TRSTB Pulse Width
ns
ns
ns
ns
ns
ns
tHTDI
tPTDO
tVTRSTB
50
100
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Figure 30: JTAG Port InterfaceTiming
TCK
TMS
TDI
tS
tS
tH
tH
TMS
TDI
TMS
TDI
TCK
TDO
tP
TDO
tV
TRSTB
TRSTB
Notes on InputTiming:
1. When a set-up time is specified between an input and a clock, the set-up time
is the time in nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt
point of the clock.
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2. When a hold time is specified between an input and a clock, the hold time is
the time in nanoseconds from the 1.4 Volt point of the clock to the 1.4 Volt
point of the input.
Notes on OutputTiming:
1. Output propagation delay time is the time in nanoseconds from the 1.4 Volt
point of the reference signal to the 1.4 Volt point of the output.
2. Maximum output propagation delays are measured with a 50 pF load on the
outputs with the exception of the RDAT[15:0], RPRTY, RSOC, RCA,
DRCA[4:1], TCA, DTCA[4:1] for which propagation delays are measured with
a 30 pF load.
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19 ORDERING ANDTHERMAL INFORMATION
Table 22: Ordering Information
DESCRIPTION
PART NO.
PM5349-BI
304-pin Ball Grid Array (SBGA)
Table 23:Thermal Information
PART NO.
PM5349-BI
AMBIENTTEMPERATURE
-40°C to 85°C
Theta Ja
22 °C/W
Theta Jc
1 °C/W
30
25
20
15
10
5
0
Conv 100 200 300 400 500
Dense Board JEDEC Board
The junction temperature (Tj) is less than 105°C for a ambient temperature (Ta) of
60°C and a 300LFM of airflow. The device must operate at Ta=70°C with 100LFM
and must not be damaged with Ta=70°C and no airflow. This assumes a dense
board and a ThetaJA of 16.
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Loaded power at 3.63V with TXC pins enable, mean = 2.83W
Loaded power at 3.63V with TXC pins enable, mean + 2 sigma = 2.89W
The junction temperature = 105°C.
Therefore, the package is approved for use without enhanced cooling.
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20 MECHANICAL INFORMATION
Figure 31:- Mechanical Drawing 304 Pin Super Ball Grid Array (SBGA)
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NOTES
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CONTACTING PMC-SIERRA, INC.
PMC-Sierra, Inc.
105-8555 Baxter Place Burnaby, BC
Canada V5A 4V7
Tel: (604) 415-6000
Fax: (604) 415-6200
Document Information:
Corporate Information:
Application Information:
Web Site:
http://www.pmc-sierra.com
None of the information contained in this document constitutes an express or implied warranty by PMC-Sierra, Inc. as to the sufficiency, fitness or
suitability for a particular purpose of any such information or the fitness, or suitability for a particular purpose, merchantability, performance,
compatibility with other parts or systems, of any of the products of PMC-Sierra, Inc., or any portion thereof, referred to in this document.
PMC-Sierra, Inc. expressly disclaims all representations and warranties of any kind regarding the contents or use of the information, including, but not
limited to, express and implied warranties of accuracy, completeness, merchantability, fitness for a particular use, or non-infringement.
In no event will PMC-Sierra, Inc. be liable for any direct, indirect, special, incidental or consequential damages, including, but not limited to, lost profits,
lost business or lost data resulting from any use of or reliance upon the information, whether or not PMC-Sierra, Inc. has been advised of the possibility
of such damage.
© 1998, 1999 PMC-Sierra, Inc.
PMC-971239 (P6) ref PMC-971028 (R5)
Issue date: July, 1999
PMC-Sierra, Inc.. 105 - 8555 Baxter Place Burnaby, BC Canada V5A 4V7 604
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