LSI Network Card 20160 User Manual

USER’S  
GUIDE  
LSI20160 Single Channel  
Ultra160 SCSI to PCI  
Host Adapter  
Version 1.0  
D e c e m b e r 2 0 0 1  
®
DB15-000231-00  
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This document contains proprietary information of LSI Logic Corporation. The  
information contained herein is not to be used by or disclosed to third parties  
without the express written permission of an officer of LSI Logic Corporation.  
LSI Logic products are not intended for use in life-support appliances, devices,  
or systems. Use of any LSI Logic product in such applications without written  
consent of the appropriate LSI Logic officer is prohibited.  
Document DB15-000231-00, First Edition (December 2001)  
This document describes the LSI Logic LSI20160 Single Channel Ultra160 SCSI  
to PCI Host Adapter and will remain the official reference source for all  
revisions/releases of this product until rescinded by an update.  
LSI Logic Corporation reserves the right to make changes to any products herein  
at any time without notice. LSI Logic does not assume any responsibility or  
liability arising out of the application or use of any product described herein,  
except as expressly agreed to in writing by LSI Logic; nor does the purchase or  
use of a product from LSI Logic convey a license under any patent rights,  
copyrights, trademark rights, or any other of the intellectual property rights of  
LSI Logic or third parties.  
Copyright © 2001 by LSI Logic Corporation. All rights reserved.  
TRADEMARK ACKNOWLEDGMENT  
The LSI Logic logo design, LVDlink, SCRIPTS, SDMS, SureLINK, and TolerANT  
are registered trademarks or trademarks of LSI Logic Corporation. All other  
brand and product names may be trademarks of their respective companies.  
MH  
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Preface  
This book is the primary reference and user’s guide for the LSI Logic  
LSI20160 Single Channel Ultra160 SCSI to PCI Host Adapter. It contains  
a complete functional description for the LSI20160 board as well as  
complete physical and electrical specifications.  
Audience  
This document assumes that you have some familiarity with SCSI  
protocol and related support devices and will benefit persons installing  
and using the LSI20160.  
Organization  
This document has the following chapters and appendix:  
Chapter 1, Describing the LSI20160, defines the interfaces and  
characteristics of the LSI20160.  
Chapter 2, Installing the LSI20160, provides both quick and detailed  
installation instructions.  
Chapter 3, Technical Specifications, describes the physical and  
operational environments of the LSI20160.  
Appendix A, Glossary of Terms and Abbreviations, provides  
definitions of various terminology that is referenced throughout this  
user’s guide.  
LSI20160 Single Channel Ultra160 SCSI to PCI Host Adapter  
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Related Publications  
PCI Storage Device Management System SDMS™ 4.0 User’s Guide,  
Version 11, Order Number S14007.B  
LSI53C1000 PCI to Ultra160 SCSI Controller Technical Manual,  
Version 2.1, Order Number S14050.A  
Revision History  
Revision  
Date  
Remarks  
1.0  
12/01  
Final version.  
vi  
Preface  
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Contents  
Chapter 1  
Describing the LSI20160  
1.1  
1.2  
General Description  
Features  
1-4  
1-5  
1.2.1  
1.2.2  
1.2.3  
1.2.4  
PCI Interface  
SCSI Interface  
Board Characteristics  
SCSI Activity LED Interface  
1.3  
Ultra160 SCSI Benefits  
1.3.1  
1.3.2  
1.3.3  
Cyclic Redundancy Check (CRC)  
1.4  
1.5  
1.6  
LVDlink™ Technology Benefits  
®
TolerANT Technology Benefits  
Chapter 2  
Installing the LSI20160  
2.1  
2.2  
Quick Installation Procedure  
Detailed Installation Procedure  
2.2.1  
2.2.2  
2.2.3  
2.2.4  
2.2.5  
2.2.6  
Before You Start  
Selecting a PCI Slot  
Inserting the Host Adapter  
SCSI Bus Termination  
Setting SCSI IDs  
2-4  
2-20  
2.3  
Completing the Installation  
Chapter 3  
Technical Specifications  
3.1 Physical Environment  
3.1.1 Physical Characteristics  
3-1  
3-1  
LSI20160 Single Channel Ultra160 SCSI to PCI Host Adapter  
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3.1.2  
3.1.3  
3.1.4  
3.1.5  
Electrical Characteristics  
3-4  
3-7  
3-8  
Electromagnetic Compliance  
Safety Characteristics  
3.2  
3.3  
Operational Environment  
3.2.1  
3.2.2  
3.2.3  
The SCSI Interface  
The LED Interface  
Appendix A  
Glossary of Terms and Abbreviations  
Customer Feedback  
viii  
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Figures  
2.1  
2.2  
2.3  
2.4  
2.5  
Hardware Connections for the LSI20160  
Inserting the Host Adapter  
2-4  
SCSI Cables  
Internal SCSI Ribbon Cable to Host Adapter  
Connection  
2.6  
2.7  
2.8  
2.9  
Connecting Additional Internal SCSI Devices  
Multiple Internal SCSI Devices Chained Together  
SCSI LED Connector  
2-13  
2-14  
2-16  
2-17  
3-2  
External Cable to Host Adapter  
2.10 External Cable to External SCSI Device  
2.11 Multiple External SCSI Devices Chained Together  
2.12 Internal SCSI Device Termination  
2.13 External SCSI Device Termination  
3.1  
LSI20160 Mechanical Drawing  
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Tables  
2.1  
3.1  
3.2  
3.3  
3.4  
3.5  
3.6  
SCSI ID Record  
3-5  
3-6  
3-7  
3-8  
3-9  
Maximum Power Requirements  
PCI Connector J1 (Front)  
PCI Connector J1 (Back)  
SCSI Interface  
LED Connector J3 Pinout  
Subsystem ID and Subsystem Vendor ID  
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Chapter 1  
Describing the  
LSI20160  
This chapter describes the LSI20160 Single Channel Ultra160 SCSI to  
PCI Host Adapter interface to PCI computer systems and includes these  
topics:  
Section 1.1, “General Description,page 1-1  
Section 1.2, “Features,page 1-2  
Section 1.3, “Ultra160 SCSI Benefits,page 1-4  
Section 1.4, “SureLINK™ Ultra160 SCSI Domain Validation Benefits,”  
page 1-5  
Section 1.5, “LVDlink™ Technology Benefits,page 1-5  
Section 1.6, “TolerANT® Technology Benefits,page 1-6  
1.1 General Description  
The LSI Logic LSI20160 provides one SCSI-3, Ultra160 SCSI interface  
to PCI computer systems that require BIOS support on the add-in SCSI  
adapter. Installing this adapter in your PCI system allows connection of  
SCSI devices over a SCSI bus.  
The LSI20160 provides one Ultra160 SCSI channel. The LSI20160  
supports Low Voltage Differential (LVD) and Single-Ended (SE) SCSI.  
This board supports Fast/Ultra/Ultra2 SCSI devices as well as the newest  
Ultra160 SCSI devices.  
The LSI Logic Storage Device Management System (SDMS™) software  
operates the board. The design of the board does not prevent other SCSI  
software from being used with it. BIOS support for this host adapter is  
incorporated on the board in a 128 Kbyte Flash device. The onboard  
controller for the LSI20160 is the LSI53C1000 PCI to Ultra160 SCSI  
Controller.  
LSI20160 Single Channel Ultra160 SCSI to PCI Host Adapter  
1-1  
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The LSI53C1000 contains a SCSI SCRIPTS™ processor that permits  
both DMA and SCSI commands to be fetched from host memory or  
internal SCRIPTS RAM. Algorithms written in SCSI SCRIPTS control the  
actions of the SCSI and DMA cores. The SCRIPTS processor executes  
complex SCSI bus sequences independently of the host CPU.  
In addition to this guide there is another reference that you will find  
useful. The LSI Logic PCI Storage Device Management System  
SDMS 4.0 User’s Guide contains product information and installation  
instructions.  
1.2 Features  
This section provides an overview of the PCI interface, the SCSI  
interface, and board characteristics for the LSI20160.  
1.2.1 PCI Interface  
The PCI interface operates as a 32-bit DMA bus master, where the  
connection is made through the J1 edge connector.  
The PCI interface includes these features:  
Complies with PCI Local Bus Specification, Revision 2.2  
Complies with PC99  
Complies with PCI Bus Power Management Specification,  
Revision 1.1  
Supports 32-bit 33 MHz word data bursts with variable burst lengths  
Bursts 4/8, 8/16, 16/32, or 32/64 Qword/Dword transfers across the  
PCI bus  
Bursts up to 264 Mbytes/s (@ 33 MHz) with zero wait-state bus  
master data  
Supports the PCI Cache Line Size (CLS) register  
Prefetches up to 8 Dwords of SCRIPTS instructions  
Supports PCI Write and Invalidate, Read Line, and Read Multiple  
commands  
Supports universal 3.3 V and 5 V PCI bus signaling environment  
1-2  
Describing the LSI20160  
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1.2.2 SCSI Interface  
The SCSI interface is made through connectors J2 and J4. Figure 2.1  
shows the location of these connectors. The SCSI interface includes  
these features:  
Provides one wide Ultra160 SCSI channel  
Provides two connectors:  
68-pin VHDCI for the external connection  
68-pin high density for the internal connection  
Supports SE and LVD signaling: 16-bit SE or LVD interfaces  
Supports LVD/SE termination  
Supports Fast, Ultra, Ultra2, and Ultra160 data transfer capability  
Ultra160 SCSI LVD synchronous transfers at up to 160 Mbytes/s  
Supports Domain Validation, Double Transition (DT) data transfers,  
and Cyclic Redundancy Check (CRC)  
Supports variable block size and scatter/gather data transfers  
Protects nondata phases with Asynchronous Information Protection  
(AIP)  
Supports two termination control options:  
Use manual shunts on connector J2 and J4 to disable  
termination  
Provide software control using GPIO3 to enable or disable the  
terminators  
Supplies SCSI termination power (TERMPWR) source with  
autoresetting circuit breaker  
Includes SCSI Plug and Play  
Provides Flash EEPROM for BIOS configuration storage  
Includes 8 Kbytes internal RAM for SCRIPTS instruction storage  
Provides a SCSI activity LED connector (J3)  
Features  
1-3  
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1.2.3 Board Characteristics  
The board characteristics are  
PCI board dimensions  
Approximately 4.721 x 2.536 inches  
Universal 32-bit PCI card edge connector  
Standard bracket available  
1.2.4 SCSI Activity LED Interface  
The J3 connector is a four-wire arrangement on the LSI20160 that  
represents the SCSI activity LED interface. Table 3.5 on page 3-8 lists  
the signal name and pin numbers for this LED interface.  
1.3 Ultra160 SCSI Benefits  
Ultra160 SCSI is an extension of the SPI-3 draft standard that allows  
faster synchronous SCSI data transfer rates than Ultra2 SCSI. When  
enabled, Ultra160 SCSI performs 80 megatransfers per second resulting  
in approximately double the synchronous data transfer rates of Ultra2  
SCSI. The LSI53C1000 performs 16-bit, Ultra160 SCSI synchronous  
data transfers as fast as 160 Mbytes/s. This advantage is most  
noticeable in heavily loaded systems or large block size applications  
such as video on-demand and image processing.  
1.3.1 Double Transition (DT) Clocking  
The Ultra160 data transfer speed is accomplished using DT clocking.  
DT clocking refers to transferring data on both rising and falling edges of  
the request and acknowledge signals. Double-edge clocking doubles  
data transfer speeds without increasing the clock rate.  
1-4  
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1.3.2 Cyclic Redundancy Check (CRC)  
Ultra160 SCSI includes CRC which offers higher levels of data reliability  
by ensuring complete integrity of transferred data. CRC is a 32-bit  
scheme, referred to as CRC-32. CRC is guaranteed to detect all single  
bit errors, any two bits in error, or any combination of errors within a  
single 32-bit range.  
1.3.3 Asynchronous Information Protection (AIP)  
The LSI53C1000 also supports AIP, which protects all nondata phases,  
including command, status, and messages. CRC, along with AIP,  
provides end-to-end protection of the SCSI I/O.  
1.4 SureLINKUltra160 SCSI Domain Validation Benefits  
SureLINK software represents the very latest SCSI interconnect  
management solution. It ensures robust and low risk Ultra160 SCSI  
implementations by extending the Domain Validation guidelines  
documented in the ANSI T10 SPI-3 specifications. Domain Validation  
verifies that the system is capable of transferring data at Ultra160  
speeds, allowing it to renegotiate to lower speed and bus width if  
necessary.  
SureLINK software is the control for the manageability enhancements in  
the LSI53C1000. Fully integrated in the SDMS software solution,  
SureLINK software provides Domain Validation at boot time, as well as  
throughout system operation.  
1.5 LVDlink™ Technology Benefits  
The LSI20160 supports LVD for SCSI, a signaling technology that  
increases the reliability of SCSI data transfers over longer distances than  
are supported by SE SCSI. The low current output of LVD allows the I/O  
transceivers to be integrated directly onto the chip. LVDlink technology  
lowers the amplitude of noise reflections and allows higher transmission  
frequencies. LVD provides a long-term migration path to even faster  
SCSI transfer rates without compromising signal integrity, cable length,  
or connectivity.  
SureLINK™ Ultra160 SCSI Domain Validation Benefits  
1-5  
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Important: All bus devices must be LVD or SE. If a High Voltage  
Differential (HVD) device is detected, the board puts the  
SCSI bus in the high impedance state and shuts down.  
®
1.6 TolerANT Technology Benefits  
The LSI20160 features TolerANT technology, which includes active  
negation on the SCSI drivers and input signal filtering on the SCSI  
receivers. The benefits of TolerANT technology include increased  
immunity to noise when the signal is going HIGH, better performance  
due to balanced duty cycles, and improved fast SCSI transfer rates. In  
addition, TolerANT SCSI devices do not cause glitches on the SCSI bus  
at power up or power down, so other devices on the bus are also  
protected from data corruption.  
When it is used with the LVDlink transceivers, TolerANT technology  
provides excellent signal quality and data reliability in real world cabling  
environments. TolerANT input signal filtering is a built-in feature of the  
LSI53C1000 device as well as all LSI Logic SCSI devices.  
1-6  
Describing the LSI20160  
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Chapter 2  
Installing the LSI20160  
This chapter provides instructions on how to install the LSI20160 and  
includes these topics:  
Section 2.1, “Quick Installation Procedure,page 2-1  
Section 2.2, “Detailed Installation Procedure,page 2-2  
Section 2.3, “Completing the Installation,page 2-20  
2.1 Quick Installation Procedure  
This section provides an overview of the installation procedure. If you are  
an experienced computer user with prior host adapter installation and  
SCSI bus setup experience, this section may sufficiently describe the  
procedure for you. If you prefer more detailed guidance for installing the  
LSI20160, proceed to Section 2.2, “Detailed Installation Procedure.”  
For safe and proper installation, check the user’s manual supplied with  
your computer and perform the following steps.  
Step 1. Ground yourself before handling the host adapter board.  
Step 2. Remove the LSI20160 from its packing and examine it for any  
damage.  
Figure 2.1 shows an example of this host adapter board.  
Step 3. Switch off and unplug the system.  
Step 4. Open your PC cabinet.  
Step 5. Locate the PCI slots on your computer.  
Step 6. Insert the LSI20160 into the selected PCI slot.  
Step 7. Connect the internal and external SCSI peripherals.  
LSI20160 Single Channel Ultra160 SCSI to PCI Host Adapter  
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Step 8. Connect the LED cable to J3 on your SCSI host adapter, if you  
wish to connect the LED to the SCSI LED connector.  
Step 9. Terminate the SCSI bus.  
The SCSI bus requires proper termination and no duplicate  
SCSI IDs.  
Step 10. Set the peripheral SCSI IDs.  
Step 11. Make any configuration changes.  
Step 12. Close your PC cabinet cover.  
Step 13. Make all external SCSI bus connections.  
Step 14. Refer to the PCI Storage Device Management System  
SDMS 4.0 User’s Guide (or the guide for the software you will  
use) to load the driver software for your particular operating  
system.  
2.2 Detailed Installation Procedure  
This section provides step-by-step instructions for installing the  
LSI20160, and connecting it to your SCSI peripherals. If you are  
experienced in these tasks, you may prefer to use the preceding  
Section 2.1, “Quick Installation Procedure.”  
2.2.1 Before You Start  
Before starting, read through the steps defined within the detailed  
installation procedure. If you are not confident that you can perform the  
tasks as described in this section, LSI Logic suggests getting assistance.  
The SCSI host adapter acts on your computer’s behalf as the host to  
your suite of SCSI peripherals. Each chain of SCSI peripheral devices  
and their host adapter work together and are referred to as a SCSI bus.  
Each SCSI host adapter that you install can act as host for up to  
15 peripheral devices, not including the adapter itself.  
2-2  
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2.2.2 Selecting a PCI Slot  
For safe and proper installation, check the user’s manual supplied with  
your computer and perform the following steps.  
Step 1. Ground yourself before removing the host adapter board from  
its package.  
Step 2. Remove the LSI20160 from its packing and verify it is not  
damaged.  
Figure 2.1 shows an example of this host adapter board.  
Step 3. Switch off and unplug the system.  
Step 4. Remove the cabinet cover on your computer to access the PCI  
slots.  
Caution:  
Ground yourself by touching a metal surface before  
handling boards. Static charges on your body can damage  
electronic components. Handle plug-in boards by the edge;  
do not touch board components or gold connector contacts.  
The use of a static ground strap is recommended.  
Step 5. Locate the PCI slots on your computer.  
Refer to the user’s manual supplied with your computer to  
confirm the location of the PCI slots. Also, the LSI20160  
requires a PCI slot that allows bus master operation and  
provides 3.3 Volts. Figure 2.2 is a representative drawing of a  
computer mainboard.  
Detailed Installation Procedure  
2-3  
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2.2.3 Inserting the Host Adapter  
Perform the following steps to install the LSI20160 in your PC mainboard.  
Step 1. Remove the blank bracket panel on the back of the computer  
aligned with the PCI slot you intend to use.  
Save the bracket screw.  
Step 2. Carefully insert the edge connector J1 of the host adapter into  
the PCI slot.  
Make sure the edge connector is properly aligned before  
pressing the board into place. The bracket around connector J2  
should fit where the blank bracket panel was removed. Refer to  
Figures 2.1 and 2.2.  
Figure 2.1 Hardware Connections for the LSI20160  
68-pin Internal  
High Density SCSI  
Connector J4  
Busy LED  
Connector J3  
68-pin VHDCI  
External SCSI  
Connector J2  
LSI20160 to PCI Bus  
Edge Connector J1  
Note:  
You may notice that the components on a PCI host adapter  
face the opposite way from non-PCI adapter boards you  
have in your system. This is correct. The board is keyed to  
go in only one way.  
2-4  
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Step 3. Secure the bracket with the bracket screw before making the  
internal and external SCSI bus connections. Figure 2.2 shows  
an example on how to insert your host adapter.  
Figure 2.2 Inserting the Host Adapter  
Bracket Screw  
32-bit Slots  
64-bit Slots  
Detailed Installation Procedure  
2-5  
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2.2.4 Connecting SCSI Peripherals  
All internal SCSI bus connections to the LSI20160 can be made with an  
unshielded, 68-conductor ribbon cable (see Figure 2.3). One side of this  
cable is marked with a color to indicate the pin-1 side. The connectors  
on this cable are keyed to ensure proper pin-1 connection. Some internal  
cables come with an LVD/SE terminator on one end. This end should be  
furthest from the host adapter.  
All external SCSI bus connections to the LSI20160 are made with  
shielded, 68-conductor cables (see Figure 2.3). The connectors on this  
cable are always keyed to ensure proper pin-1 connection.  
Figure 2.3 SCSI Cables  
SCSI Cable for Internal Connections  
68-pin  
High Density  
SCSI Cable for External Connections  
68-pin  
VHDCI  
2-6  
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2.2.4.1 Making Internal SCSI Bus Connections  
This section provides step-by-step instructions for making internal SCSI  
bus connections. If you only have external connections, skip to  
Section 2.2.4.3, “Making External SCSI Bus Connections.”  
Step 1. Plug a 68-pin connector on the end of the internal SCSI ribbon  
cable into connector J4. Figure 2.4 illustrates how to make this  
connection.  
Figure 2.4 Internal SCSI Ribbon Cable to Host Adapter  
Detailed Installation Procedure  
2-7  
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Step 2. Plug the 68-pin connector on the other end of the internal SCSI  
ribbon cable into the SCSI connector on the internal SCSI  
device.  
Pin 1 must match on all connections. The lead in the cable  
adjacent to pin 1 is colored. Figure 2.5 illustrates a connection  
to an internal SCSI device.  
Figure 2.5 Internal SCSI Ribbon Cable to Internal SCSI Device  
Connection  
If you have more than one internal SCSI device, you must have  
a cable with at least as many connectors as devices.  
2-8  
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Step 3. Plug in any additional internal SCSI devices, as required. Refer  
to the example in Figure 2.6.  
Figure 2.7 illustrates the connection of multiple internal SCSI  
devices chained together. Make sure to match pin 1 on all  
connections.  
Figure 2.6 Connecting Additional Internal SCSI Devices  
Detailed Installation Procedure  
2-9  
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Figure 2.7 Multiple Internal SCSI Devices Chained Together  
2.2.4.2 Making Activity LED Connection  
Most PC cabinets are designed with a front panel LED to indicate bus  
activity. It may already be connected to an existing IDE controller. If you  
want, you can connect the LED to the SCSI LED connector.  
Connect the LED cable to J3 on your SCSI host adapter, as shown in  
Figure 2.8.  
The Busy LED connector J3 is not keyed. The J3 connector is a 4-pin  
one row right angle header. Some LED cables have only two wires. In  
this case, place the connector on one end of J3. If the LED does not light  
during SCSI bus activity, you may have to rotate the LED cable 180˚ on  
J3 or move it to the other end of the jack.  
2-10  
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After the correct connection is established, the front panel LED indicates  
activity on the SCSI bus. Refer to Table 3.5 on page 3-8 for connector  
pinout information.  
Figure 2.8 SCSI LED Connector  
LED  
Cable  
LED  
Connector J3  
Detailed Installation Procedure  
2-11  
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2.2.4.3 Making External SCSI Bus Connections  
This section provides step-by-step instructions for making external SCSI  
bus connections.  
Step 1. Plug the 68-pin VHDCI connector on one end of a shielded  
external high density cable (see Figure 2.3) into the host  
adapter connector J2.  
This connector is exposed on the back panel of your computer.  
Figure 2.9 illustrates where this connection is made.  
Figure 2.9 External Cable to Host Adapter  
2-12  
Installing the LSI20160  
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Step 2. Plug the 68-pin connector on the other end of the shielded  
external SCSI cable into the SCSI connector on your external  
SCSI device.  
Figure 2.10 illustrates a connection to an external SCSI device.  
Figure 2.10 External Cable to External SCSI Device  
Detailed Installation Procedure  
2-13  
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Step 3. Chain any additional SCSI devices together with shielded  
external SCSI cables.  
Figure 2.11 shows an example of multiple external SCSI  
devices that are chained together.  
Figure 2.11 Multiple External SCSI Devices Chained Together  
2-14  
Installing the LSI20160  
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2.2.5 SCSI Bus Termination  
The devices making up the SCSI bus are connected serially (chained  
together) with SCSI cables. The first and last physical SCSI devices  
connected on the ends of the SCSI bus must have their terminators  
active. All other SCSI devices on the bus must have their terminators  
removed or disabled.  
Termination control has two options which allow a different termination  
mode:  
Termination can be disabled by placing a manual shunt over the  
post. When the shunt is off, the terminator is active. When the shunt  
is on the post, the terminator is disabled.  
Termination can be enabled or disabled for a specific channel using  
software control with GPIO3.  
LVD peripheral devices are normally terminated with external  
terminators, but are sometimes set with jumpers or with a switch on the  
peripheral. Refer to the peripheral manufacturer’s instructions and to the  
user’s manual for your computer for information on how to identify the  
terminator setting of each device and how to change it.  
The LSI20160 automatically controls SCSI bus termination for two  
different bus configurations (see Figure 2.1). The two bus configurations  
are  
Termination on  
Termination off  
You can disable termination in two ways:  
Use BIOS software control, where the BIOS termination option is  
changed from Automatic to Off.  
Manually place a shunt on the post of the respective jumpers, J2DIS  
and J4DIS.  
Detailed Installation Procedure  
2-15  
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2.2.5.1 Internal SCSI Terminations  
If you are making internal SCSI device connections on your host adapter,  
you must terminate the last internal device on the SCSI bus. You must  
disable the termination on all other devices. Termination on your host  
adapter is automatically enabled in this case if there are no external  
SCSI devices connected through J2.  
Figure 2.12 shows an example of how termination is determined for this  
SCSI bus configuration.  
Figure 2.12 Internal SCSI Device Termination  
Last Device on  
Chain-  
Termination  
Enabled  
Does Not End Chain-  
Termination Disabled  
Host Adapter  
Automatically  
Terminated  
2-16  
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2.2.5.2 External SCSI Terminations  
If you are making external SCSI device connections on your host  
adapter, you must terminate the last external device on the SCSI bus.  
Termination on all other devices must be disabled. Termination on your  
host adapter is automatically enabled in this case if there are no internal  
devices connected through J4.  
Figure 2.13 shows an example of how termination is determined for this  
SCSI bus configuration on your host adapter.  
Figure 2.13 External SCSI Device Termination  
Last Device on  
Chain-Termination  
Enabled  
Does Not End  
Chain-Termination  
Disabled  
Host Adapter  
Automatically  
Terminated  
Detailed Installation Procedure  
2-17  
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2.2.6 Setting SCSI IDs  
You must set each SCSI device and the host adapter to a separate SCSI  
ID. The IDs are 0 through 7 for an 8-bit bus and 0 through 15 for a 16-bit  
bus. SCSI ID 7 is the preset host adapter setting, giving it the highest  
priority on the SCSI bus. If you plan to boot your computer from a hard  
disk drive on the SCSI bus, that drive should have SCSI ID 0, or the  
lowest SCSI ID on the bus. The PCI Storage Device Management  
System SDMS 4.0 User’s Guide explains how to set your host adapter  
ID using the SCSI BIOS Configuration Utility.  
The peripheral device SCSI IDs are usually set with jumpers or with a  
switch on the peripheral. Refer to the peripheral manufacturer’s  
instructions and to the user’s manual for your computer to determine the  
ID of each device and how to change it. No duplication of SCSI IDs is  
allowed on a SCSI bus.  
Step 1. Determine the SCSI ID of each device on the SCSI bus. Note  
any duplications.  
Step 2. Make any necessary changes to the SCSI IDs and record the  
IDs for future reference. Correct any duplications at this time.  
Table 2.1 on page 2-19 is provided as a place to keep this  
record.  
2-18  
Installing the LSI20160  
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Table 2.1  
SCSI ID  
SCSI ID Record  
SCSI Device  
15  
14  
13  
12  
11  
10  
9
8
7
LSI20160 (default)  
6
5
4
3
2
1
0
Detailed Installation Procedure  
2-19  
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2.3 Completing the Installation  
Before replacing the cover on your computer, review this installation  
procedure check list. This can save you effort later.  
Verify Installation Procedures  
Done  
Host adapter connection in PCI bus slot secure  
Internal SCSI bus connections secure (pin-1 continuity)  
External SCSI bus connections secure  
Proper SCSI bus termination established  
Unique SCSI IDs set and recorded for each device  
Step 1. Replace the cabinet cover on your computer.  
Step 2. Plug in all power cords, and switch on power to all devices and  
your computer.  
Step 3. Wait for your computer to boot up.  
Step 4. Refer to the LSI Logic PCI Storage Device Management  
System SDMS 4.0 User’s Guide (or the guide for the software  
you will use) to load the driver software for your particular  
operating system and to change the configuration of your host  
adapter, if needed.  
2-20  
Installing the LSI20160  
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Chapter 3  
Technical  
Specifications  
This chapter discusses the physical environment associated with the  
LSI20160. It includes a mechanical drawing of this board, which is shown  
in Figure 3.1. It also includes these topics:  
Section 3.1, “Physical Environment,page 3-1  
Section 3.2, “Operational Environment,page 3-4  
Section 3.3, “Subsystem ID and Subsystem Vendor ID,page 3-9  
3.1 Physical Environment  
This section discusses the physical, electrical, thermal, and safety  
characteristics of the LSI20160. Additionally, this board is compliant with  
electromagnetic standards set by the FCC.  
3.1.1 Physical Characteristics  
The dimensions of the LSI20160 are 4.721 x 2.536 inches. Edge  
connector J1 makes the PCI connection. The component height on the  
top and bottom of the LSI20160 follows the PCI specification.  
Connector J4 is a 68-pin high density connector that makes the internal  
SCSI connection. Connector J2 is a 68-pin VHDCI connector that makes  
the external SCSI connection. The J2 connector extends through the  
standard bracket, which is attached to the face of the connector outside  
of the cabinet where the LSI20160 is installed. Connector J3 provides  
connection to the computer’s drive activity LED. It is a 4-pin, one-row,  
right-angle header.  
LSI20160 Single Channel Ultra160 SCSI to PCI Host Adapter  
3-1  
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Figure 3.1 LSI20160 Mechanical Drawing  
J4  
J3 LED  
Channel A  
Ultra160 SCSI LVD only  
LSI53C1000  
J1T-PCI  
J2  
Channel A  
Ultra160 SCSI LVD/SE  
Note:  
J1: PCI 32-bit universal type board edge connector.  
J2: 68-pin VHDCI connector for external SCSI connection.  
J4: 68-pin high density internal SCSI connection.  
J3: 4-pin low density unshrouded right-angle LED connector.  
Subsystem Vendor ID is 1000.  
Subsystem ID is 1060.  
3.1.2 Electrical Characteristics  
The LSI20160 maximum power requirements that include SCSI  
TERMPWR under normal operation are shown in Table 3.1:  
Table 3.1  
Maximum Power Requirements  
+5 V DC  
5%  
5%  
1.3 A  
Over the operating range 0–55 °C (with SCSI  
TERMPWR, supplied to external connection)  
+5 V DC  
0.40 A  
Over the operating range 0–55 ˚C (without  
SCSI TERMPWR, supplied to external  
connection)  
+3.3 V DC 5%  
1.00 A  
Over the operating range 0–55 ˚C  
The PCI PRSNT1 and PRSNT2 pins are set to indicate a 7.5 W maximum  
configuration.  
3-2  
Technical Specifications  
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Under abnormal conditions, such as a short on SCSI TERMPWR, + 5 V  
current may be higher. At temperatures of at least 25 °C, a current of  
8 A is sustained no longer than 0.5 seconds before the self-resetting  
TERMPWR short circuit protection device opens.  
3.1.3 Thermal, Atmospheric Characteristics  
The thermal, atmospheric characteristics of the LSI20160 are:  
Temperature range: 0 °C to 55 °C (dry bulb)  
Relative humidity range: 5% to 90% noncondensing  
Maximum dew point temperature: 32 °C  
The following parameters define the storage and transit environment for  
the LSI20160:  
Temperature range: 45 °C to + 105 °C (dry bulb)  
Relative humidity range: 5% to 90% noncondensing  
3.1.4 Electromagnetic Compliance  
This board is tested to and meets class B regulatory requirements for the  
United States, Canadian, European, Japanese, and Australian markets.  
This board carries the appropriate markings (FCC, CE, VCCI, C-Tick)  
indicating such compliance.  
3.1.5 Safety Characteristics  
The bare board meets or exceeds the requirements of UL flammability  
rating 94 V0. The bare board is also marked with the supplier’s name or  
trademark, type, and UL flammability rating. Since this board is installed  
in a PCI bus slot, all voltages are below the SELV 42.4 V limit.  
Physical Environment  
3-3  
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3.2 Operational Environment  
The LSI20160 is designed for use in PCI computer systems with a  
standard bracket type. The SDMS software operates the board, but the  
design of the board does not prevent the use of other software. An on-  
board Flash memory device allows you to use BIOS code and open boot  
code support through PCI and a serial EEPROM.  
3.2.1 The PCI Interface  
The PCI interface operates as a 32-bit DMA bus master. The connection  
is made through edge connector J1, which provides connections on both  
the front and back of the board. The signal definitions and pin numbers  
conform to the PCI Local Bus Specification, Revision 2.2 standard. The  
signal assignments appear in Table 3.2, Table 3.3, and Table 3.4.  
Note:  
The LSI20160 uses 3.3 V pins to run the LSI53C1000 and  
some other parts. The LSI20160 requires 3.3 V from the  
PCI + 3.3 V power rail for proper operation.  
3-4  
Technical Specifications  
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1
Table 3.2  
PCI Connector J1 (Front)  
Signal Name  
Pin  
Signal Name  
Pin  
12 V  
TCK  
1
AD17  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
2
2
C_BE2  
GND  
GND  
TDO  
+5 V  
+5 V  
3
2
4
IRDY  
5
+3.3 V  
2
6
DEVSEL  
2
2
INTB  
7
GND  
2
2
INTD  
8
LOCK  
2
2
GND(PRSNT1 )  
RESERVED  
9
PERR  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
+3.3 V  
2
2
GND(PRSNT2 )  
SERR  
KEYWAY  
KEYWAY  
RESERVED  
GND  
+3.3 V  
2
C_BE1  
AD14  
GND  
AD12  
AD10  
CLK  
GND  
2
REQ  
M66EN (LVD)  
KEYWAY  
KEYWAY  
AD08  
3 V/5 V  
AD31  
AD29  
GND  
AD07  
AD27  
AD25  
+3.3 V  
+3.3 V  
AD05  
AD03  
2
C_BE3  
GND  
AD23  
GND  
AD01  
3 V/5 V  
2
AD21  
AD19  
+3.3 V  
ACK64  
+5 V  
+5 V  
1. Shaded lines are not connected.  
2. Active LOW signal.  
Operational Environment  
3-5  
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)
1
Table 3.3  
PCI Connector J1 (Back)  
Signal Name  
Pin  
Signal Name  
Pin  
2
TRST  
1
AD16  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
+12 V  
TMS  
TDI  
2
+3.3 V  
FRAME  
GND  
2
3
4
2
+5 V  
5
TRDY  
2
INTA  
6
GND  
2
2
INTC  
7
STOP  
+5 V  
8
+3.3 V  
RESERVED  
3 V/5 V  
9
SDONE  
2
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
SBO  
RESERVED  
KEYWAY  
KEYWAY  
RESERVED  
GND  
PAR  
AD15  
+3.3 V  
AD13  
2
RST  
3 V/5 V  
AD11  
2
GNT  
GND  
GND  
AD09  
RESERVED  
AD30  
KEYWAY  
KEYWAY  
2
+3.3 V  
AD28  
C_BE0  
+3.3 V  
AD06  
AD04  
GND  
AD26  
GND  
AD24  
IDSEL  
+3.3 V  
AD22  
AD02  
AD00  
3 V/5 V  
2
AD20  
REQ64  
GND  
+5 V  
+5 V  
AD18  
1. Shaded lines are not connected.  
2. Active LOW signal.  
3-6  
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3.2.2 The SCSI Interface  
The SCSI interface conforms to ANSI X 3T10.11/1142. The SCSI  
interface operates as 16-bit, synchronous or asynchronous, SE or LVD,  
and supports Ultra160 SCSI protocols. Arbitration is supported for 8-bit  
(at lower SCSI speeds) and 16-bit. Active SE or LVD SCSI termination  
is provided automatically. The LSI20160 supplies the SCSI termination  
power.  
Connector J2 makes the external connection, which provides LVD/SE  
SCSI termination. Connector J4 makes the internal connection, which  
only provides LVD SCSI termination.  
Table 3.4 shows the signal assignments for J2 and J4.  
Table 3.4  
SCSI Interface  
Signal Name  
Pin Signal Name Pin Signal Name Pin  
SD12+  
SD13+  
SD14+  
SD15+  
SDP1+  
SD0+  
1
2
3
4
5
6
7
8
9
SACK+  
SRST+  
SMSG+  
SSEL+  
SC_D+  
SREQ+  
SI_O+  
SD8+  
24 SD7−  
25 SDP−  
26 GND  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
27 Cable_prnt  
28 TERMPWR  
29 TERMPWR  
30 N/C  
SD1+  
SD2+  
31 GND  
SD3+  
SD9+  
32 SATN−  
33 GND  
SD4+  
10 SD10+  
11 SD11+  
12 SD12−  
13 SD13−  
14 SD14−  
15 SD15−  
16 SDP1−  
17 SD0−  
18 SD1−  
19 SD2−  
20 SD3−  
21 SD4−  
22 SD5−  
23 SD6−  
SD5+  
34 SBSY−  
35 SACK−  
36 SRST−  
37 SMSG−  
38 SSEL−  
39 SC_D−  
40 SREQ−  
41 SI_O−  
42 SD8−  
43 SD9−  
44 SD10−  
45 SD11−  
46  
SD6+  
SD7+  
SDP+  
GND  
DIFFSENS  
TERMPWR  
TERMPWR  
N/C  
GND  
SATN+  
GND  
SBSY+  
Operational Environment  
3-7  
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3.2.3 The LED Interface  
The LSI20160 LED interface is a four-wire arrangement that allows you  
to connect an LED harness to the board. The GPIO0_FETCH line has a  
maximum output low voltage of 0.4 V and minimum output low current of  
16 mA. It is driven low to complete the circuit when a harness with an  
LED is attached. The J3 connector provides the LED connection on the  
LSI20160. Table 3.5 lists the signal and pin numbers for the LED  
interface.  
Table 3.5  
LED Connector J3 Pinout  
Signal Name  
Pin  
A_LED+  
A_LED−  
A_LED−  
A_LED+  
1
2
3
4
3-8  
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3.3 Subsystem ID and Subsystem Vendor ID  
Table 3.6 provides the Subsystem ID and System Vendor ID for the  
LSI20160. The serial EEPROM on this board contains the ID numbers.  
During system initialization, the system loads the ID numbers into the  
Subsystem Vendor ID and Subsystem ID registers of the LSI20160 SCSI  
Controller (the LSI53C1000). For more information on the operation of  
the Subsystem Vendor ID and Subsystem ID registers, refer to the  
LSI53C1000 PCI to Ultra160 SCSI Controller Technical Manual.  
Table 3.6  
Subsystem ID and Subsystem Vendor ID  
Subsystem  
ID  
Subsystem Vendor ID  
Subsystem ID  
1000  
1060  
Subsystem ID and Subsystem Vendor ID  
3-9  
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3-10  
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Appendix A  
Glossary of Terms and  
Abbreviations  
160/m  
An industry initiative extension of the Ultra160 SCSI specification that  
requires support of Double Transition Clocking, Domain Validation, and  
Cyclic Redundancy Check (CRC).  
Active  
Termination  
The electrical connection required at each end of the SCSI bus,  
composed of active voltage regulation and a set of termination resistors.  
Ultra, Ultra2, and Ultra160 SCSI require active termination.  
Address  
AIP  
A specific location in memory, designated either numerically or by a  
symbolic name.  
Asynchronous Information Protection provides error checking for  
asynchronous, nondata phases of the SCSI bus.  
Asynchronous  
Data Transfer  
One of the ways data is transferred over the SCSI bus. It is slower than  
synchronous data transfer.  
BIOS  
Basic Input/Output System. Software that provides basic read/write  
capability. Usually kept as firmware (ROM based). The system BIOS on  
the mainboard of a computer is used to boot and control the system. The  
SCSI BIOS on your host adapter acts as an extension of the system  
BIOS.  
Bit  
A binary digit. The smallest unit of information a computer uses. The  
value of a bit (0 or 1) represents a two-way choice, such as on or off,  
true or false, and so on.  
Bus  
A collection of unbroken signal lines across which information is  
transmitted from one part of a computer system to another. Connections  
to the bus are made using taps on the lines.  
LSI20160 Single Channel Ultra160 SCSI to PCI Host Adapter  
A-1  
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Bus Mastering  
A high-performance way to transfer data. The host adapter controls the  
transfer of data directly to and from system memory without interrupting  
the computer’s microprocessor. This is the fastest way for multitasking  
operating systems to transfer data.  
Byte  
A unit of information consisting of eight bits.  
CISPR  
A special international committee on radio interference (Committee,  
International and Special, for Protection in Radio).  
Configuration  
CRC  
Refers to the way a computer is setup; the combined hardware  
components (computer, monitor, keyboard, and peripheral devices) that  
make up a computer system; or the software settings that allow the  
hardware components to communicate with each other.  
Cyclic Redundancy Check is an error detection code used in Ultra160  
SCSI. Four bytes are transferred with the data to increase the reliability  
of data transfers. CRC is used on the Double Transition (DT) Data-In and  
DT Data-Out phases.  
CPU  
Central Processing Unit. The “brain” of the computer that performs the  
actual computations. The term Microprocessor Unit (MPU) is also used.  
DMA Bus  
Master  
A feature that allows a peripheral to control the flow of data to and from  
system memory by blocks, as opposed to PIO (Programmed I/O) where  
the processor is in control and the flow is by byte.  
Device Driver  
A program that allows a microprocessor (through the operating system)  
to direct the operation of a peripheral device.  
Differential SCSI A hardware configuration for connecting SCSI devices. It uses a pair of  
lines for each signal transfer (as opposed to Single-Ended SCSI which  
references each SCSI signal to a common ground).  
DMI  
Desktop Management Interface.  
Domain  
Validation  
Domain Validation is a software procedure in which a host queries a  
device to determine its ability to communicate at the negotiated Ultra160  
data rate.  
Double  
Transition (DT)  
Clocking  
In DT Clocking data is sampled on both the asserting and deasserting  
edge of the REQ/ACK signal. DT Clocking may only be implemented on  
an LVD SCSI bus.  
A-2  
Glossary of Terms and Abbreviations  
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Dword  
A double word is a group of four consecutive bytes or characters that are  
stored, addressed, transmitted, and operated on as a unit. The lower two  
address bits of the least significant byte must equal zero in order to be  
Dword aligned.  
EEPROM  
EISA  
Electronically Erasable Programmable Read Only Memory. A memory  
chip typically used to store configuration information. See NVRAM.  
Extended Industry Standard Architecture. An extension of the 16-bit ISA  
bus standard. It allows devices to perform 32-bit data transfers.  
External SCSI  
Device  
A SCSI device installed outside the computer cabinet. These devices are  
connected in a continuous chain using specific types of shielded cables.  
Fast-20  
The SCSI Trade Association (STA) supports the use of “Ultra SCSI” over  
the term “Fast-20”. Please see Ultra SCSI.  
Fast-40  
The SCSI Trade Association (STA) supports the use of “Ultra2 SCSI”  
over the term “Fast-40”. Please see Ultra2 SCSI.  
Fast SCSI  
A standard for SCSI data transfers. It allows a transfer rate of up to  
10 Mbytes/s over an 8-bit SCSI bus and up to 20 Mbytes/s over a 16-bit  
SCSI bus.  
FCC  
Federal Communications Commission.  
File  
A named collection of information stored on a disk.  
Firmware  
Software that is permanently stored in ROM. Therefore, it can be  
accessed during boot time.  
Hard Disk  
Host  
A disk made of metal and permanently sealed into a drive cartridge. A  
hard disk can store very large amounts of information.  
The computer system in which a SCSI host adapter is installed. It uses  
the SCSI host adapter to transfer information to and from devices  
attached to the SCSI bus.  
Host Adapter  
A circuit board or integrated circuit that provides a SCSI bus connection  
to the computer system.  
Internal SCSI  
Device  
A SCSI device installed inside the computer cabinet. These devices are  
connected in a continuous chain using an unshielded ribbon cable.  
A-3  
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IRQ  
ISA  
Interrupt Request Channel. A path through which a device can get the  
immediate attention of the computer’s CPU. The PCI bus assigns an IRQ  
path for each SCSI host adapter.  
Industry Standard Architecture. A type of computer bus used in most  
PCs. It allows devices to send and receive data up to 16 bits at a time.  
Kbyte  
Kilobyte. A measure of computer storage equal to 1024 bytes.  
Local Bus  
A way to connect peripherals directly to computer memory. It bypasses  
the slower ISA and EISA buses. PCI is a local bus standard.  
Logical Unit  
A subdivision, either logical or physical, of a SCSI device (actually the  
place for the device on the SCSI bus). Most devices have only one  
logical unit, but up to eight are allowed for each of the eight possible  
devices on a SCSI bus.  
LUN  
Logical Unit Number. An identifier, zero to seven, for a logical unit.  
LVDlink  
Low Voltage Differential link allows greater Ultra2 SCSI device  
connectability and longer SCSI cables. LVDlink lowers the amplitude of  
noise reflections and allows higher transmission frequencies. Detailed  
information may be found in Section 1.5, “LVDlink™ Technology  
Benefits,page 1-5.  
Mainboard  
A large circuit board that holds RAM, ROM, the microprocessor, custom  
integrated circuits, and other components that make a computer work. It  
also has expansion slots for host adapters and other expansion boards.  
Main Memory  
The part of a computer’s memory which is directly accessible by the CPU  
(usually synonymous with RAM).  
Mbyte  
Megabyte. A measure of computer storage equal to 1024 kilobytes.  
Motherboard  
See Mainboard. In some countries, the term Motherboard is not  
appropriate.  
Multitasking  
The executing of more than one command at the same time. This allows  
programs to operate in parallel.  
Multithreading  
The simultaneous accessing of data by more than one SCSI device. This  
increases the data throughput.  
A-4  
Glossary of Terms and Abbreviations  
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NVRAM  
NonVolatile Random Access Memory. Actually an EEPROM  
(Electronically Erasable Read Only Memory chip) used to store  
configuration information. See EEPROM.  
Operating  
System  
A program that organizes the internal activities of the computer and its  
peripheral devices. An operating system performs basic tasks such as  
moving data to and from devices, and managing information in memory.  
It also provides the user interface.  
Parity Checking A way to verify the accuracy of data transmitted over the SCSI bus. The  
parity bit in the transfer is used to make the sum of all the 1 bits either  
odd or even (for odd or even parity). If the sum is not correct, the  
information may be retransmitted or an error message may appear.  
Passive  
The electrical connection required at each end of the SCSI bus,  
Termination  
composed of a set of resistors. It improves the integrity of bus signals.  
PC99  
A set of design standards that developers must comply with to be  
Windows NT compatible.  
PCI  
Peripheral Component Interconnect. A local bus specification that allows  
connection of peripherals directly to computer memory. It bypasses the  
slower ISA and EISA buses.  
Peripheral  
Devices  
A piece of hardware (such as a video monitor, disk drive, printer, or  
CD-ROM) used with a computer and under the computer’s control. SCSI  
peripherals are controlled through a SCSI host adapter.  
Pin-1  
Orientation  
The alignment of pin 1 on a SCSI cable connector and the pin-1 position  
on the SCSI connector into which it is inserted. External SCSI cables are  
always keyed to insure proper alignment, but internal SCSI ribbon cables  
sometimes are not keyed.  
PIO  
Programmed Input/Output. A way the CPU can transfer data to and from  
memory using the computer’s I/O ports. PIO is usually faster than DMA,  
but requires CPU time.  
Port Address  
Also Port Number. The address through which commands are sent to a  
host adapter board. This address is assigned by the PCI bus.  
Port Number  
Queue Tags  
See Port Address.  
A way to keep track of multiple commands that allow for increased  
throughput on the SCSI bus.  
A-5  
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RAM  
Random Access Memory. The computer’s primary working memory in  
which program instructions and data are stored and are accessible to the  
CPU. Information can be written to and read from RAM. The contents of  
RAM are lost when the computer is turned off.  
RISC Core  
ROM  
LSI Logic SCSI chips contain a RISC (Reduced Instruction Set  
Computer) processor, programmed through SCRIPTS microcode.  
Read Only Memory. Memory from which information can be read but not  
changed. The contents of ROM are not erased when the computer is  
turned off.  
SCAM  
SCSI  
SCSI Configured AutoMatically. A method to automatically allocate SCSI  
IDs using software when SCAM compliant SCSI devices are attached.  
Small Computer System Interface. A specification for a high-performance  
peripheral bus and command set. The original standard is referred to as  
SCSI-1.  
SCSI-2  
The SCSI specification which adds features to the original SCSI  
standard.  
SCSI-3  
The SCSI specification which adds features to the SCSI-2 standard.  
SCSI Bus  
A host adapter and one or more SCSI peripherals connected by cables  
in a linear chain configuration. The host adapter may exist anywhere on  
the chain, allowing connection of both internal and external SCSI  
devices. A system may have more than one SCSI bus by using multiple  
host adapters.  
SCSI Device  
SCSI ID  
Any device that conforms to the SCSI standard and is attached to the  
SCSI bus by a SCSI cable. This includes SCSI host adapters and SCSI  
peripherals.  
A way to uniquely identify each SCSI device on the SCSI bus. Each  
SCSI bus has eight available SCSI IDs numbered 0 through 7 (or 0  
through 15 for Wide SCSI). The host adapter usually gets the highest ID  
(7 or 15) giving it priority to control the bus.  
SCSI SCRIPTS  
A SCSI programming language that works with the SCRIPTS processor.  
The SCRIPTS processor fetches SCRIPTS instructions from system  
memory to control processor operation.  
A-6  
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SCRIPTS  
Processor  
The SCRIPTS processor allows users to fine tune SCSI operations with  
regard to unique vendor commands or new SCSI specifications. The  
SCRIPTS processor fetches SCRIPTS instructions from system memory  
to control processor operation.  
SDMS  
Storage Device Management System. An LSI Logic software product that  
manages SCSI system I/O.  
Single-Ended  
SCSI  
A hardware specification for connecting SCSI devices. It references each  
SCSI signal to a common ground. This is the most common method (as  
opposed to differential SCSI which uses a separate ground for each  
signal).  
STA  
SCSI Trade Association. A group of companies that cooperate to  
promote SCSI parallel interface technology as a viable mainstream I/O  
interconnect for commercial computing.  
SureLINK  
The domain validation method developed and used by LSI Logic.  
SureLINK provides three levels of integrity checking: Basic (level 1),  
Enhanced (level 2), and Margined (level 3).  
Synchronous  
Data Transfer  
One of the ways data is transferred over the SCSI bus. Transfers are  
clocked with fixed frequency pulses. This is faster than asynchronous  
data transfer. Synchronous data transfers are negotiated between the  
SCSI host adapter and each SCSI device.  
System BIOS  
TolerANT  
Controls the low-level POST (Power-On Self-Test), and basic operation  
of the CPU and computer system.  
A technology developed and used by LSI Logic to improve data integrity,  
data transfer rates, and noise immunity through the use of active  
negation and input signal filtering.  
Ultra SCSI  
A standard for SCSI data transfers. It allows a transfer rate of up to  
20 Mbytes/s over an 8-bit SCSI bus and up to 40 Mbytes/s over a 16-bit  
SCSI bus. SCSI Trade Association (STA) supports using the term “Ultra  
SCSI” over the older term “Fast-20”.  
Ultra2 SCSI  
A standard for SCSI data transfers. It allows a transfer rate of up to  
40 Mbytes/s over an 8-bit SCSI bus, and up to 80 Mbytes/s over a  
16-bit SCSI bus. SCSI Trade Association (STA) supports using the term  
“Ultra2 SCSI” over the term “Fast-40”.  
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Ultra160 SCSI  
A standard for SCSI data transfers. It allows a transfer rate of up to  
160 Mbytes/s over a 16-bit SCSI bus.  
VCCI  
VDE  
Voluntary Control Council for Interference.  
Verband Deucher Elektroniker (Association of German Electrical  
Engineers).  
VHDCI  
Very High Density Cable Interconnect.  
Virtual Memory  
Wide SCSI  
Space on a hard disk that can be used as if it were RAM.  
A SCSI-2 feature allowing 16-bit or 32-bit transfers on the SCSI bus. This  
dramatically increases the transfer rate over the standard 8-bit SCSI bus.  
Wide Ultra SCSI The SCSI Trade Association (STA) term for SCSI bus width 16-bits, SCSI  
bus speed maximum data rate 40 Mbytes/s.  
Wide Ultra2  
SCSI  
The SCSI Trade Association (STA) term for SCSI bus width 16-bits, SCSI  
bus speed maximum data rate 80 Mbytes/s.  
Word  
A two byte (or 16-bit) unit of information.  
A-8  
Glossary of Terms and Abbreviations  
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Index  
A
asynchronous information protection  
feature of Ultra160 SCSI 1-5  
features  
board characteristics 1-4, 3-1  
PCI interface 1-2, 3-4  
SCSI interface 1-3, 3-7  
B
board characteristics 1-4, 3-1  
board software 1-1  
bracket type 1-4, 3-4  
bus configurations 2-15  
additional internal devices 2-9  
making 2-7  
to internal device 2-8  
internal SCSI device terminations 2-16  
C
completing the installation  
using a checklist 2-20  
connecting the SCSI peripherals 2-6  
connector  
J1 3-1  
J2 3-1  
J3 3-8  
J4 3-1  
cyclic redundancy check  
feature of Ultra160 SCSI 1-5  
cables 2-10  
J3 connector 3-8  
D
LSI20160 host adapter  
connecting SCSI peripherals 2-6  
features 1-2 to 1-4  
descriptions  
PCI interface 1-2, 3-4  
SCSI activity LED interface 1-4, 3-8  
SCSI interface 1-3, 3-7  
detailed installation procedure 2-2 to 2-5  
domain validation  
inserting 2-4  
LED interface 1-4  
maximum power requirements 3-2  
operational environment 3-4 to 3-8  
physical environment 3-1 to 3-3  
selecting a PCI slot 2-3  
LSI53C1000 device  
benefits 1-5  
double transition clocking  
feature of Ultra160 SCSI 1-4  
performing Ultra160 SCSI 1-4  
using TolerANT technology 1-6  
LVD peripheral devices 2-15  
LVD SCSI termination 3-7  
LVDlink technology 1-5  
E
EEPROM  
for configuration storage 1-3  
electrical characteristics 3-2  
electromagnetic compliance 3-3  
external SCSI bus connections  
external chaining 2-14  
making 2-12  
M
maximum power 3-2  
mechanical drawing 3-2  
to external device 2-13  
external SCSI terminations 2-17  
LSI20160 Single Channel Ultra160 SCSI to PCI Host Adapter  
IX-1  
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benefits 1-6  
O
operational environment 3-4 to 3-8  
P
UL flammability rating 3-3  
Ultra160 SCSI 1-4  
PCI board dimensions 1-4, 3-1  
PCI connector 3-5 to 3-6  
PCI interface 1-2, 3-4  
PCI slot  
asynchronous information protection 1-5  
benefits 1-4  
double transition 1-4  
selecting 2-3  
peripheral devices 2-18  
physical environment 3-1 to 3-3  
preset host adapter setting  
SCSI ID 2-18  
SureLINK software 1-5  
Q
quick installation procedure 2-1 to 2-2  
S
safety characteristics 3-3  
SCSI  
activity LED interface 1-4  
bus termination 2-15  
cables 2-6  
connecting peripherals 2-6  
devices using TolerANT technology 1-6  
disabling termination 2-15  
drivers  
active negation 1-6  
interface 1-3, 3-7  
making external connections 2-12 to 2-14  
making internal connections 2-7 to 2-10  
plug and play 1-3  
receivers  
input signal filtering 1-6  
SE or LVD termination 3-7  
setting IDs 2-18  
termination power 1-3  
SCSI BIOS configuration utility  
using 2-18  
serial EEPROM  
containing system ID numbers 3-9  
signal assignments  
PCI interface 3-4  
SCSI interface 3-7  
software  
operating the board 1-1, 2-20  
standard bracket 3-1  
subsystem ID 3-9  
subsystem vendor ID 3-9  
SureLINK software  
for domain validation 1-5  
T
termination  
disabling 2-15  
external SCSI connections 2-17  
internal SCSI connections 2-16  
SCSI bus 2-15  
SE or LVD SCSI 3-7  
thermal, atmospheric characteristics 3-3  
IX-2  
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