Intel Computer Hardware PCA 6175 User Manual

PCA-6175  
Pentium® II processor-  
based PCI/ISA-bus CPU  
card  
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A Message to the Customer  
Advantech Customer Services  
Each and every Advantech product is built to the most exacting  
specifications to ensure reliable performance in the harsh and  
demanding conditions typical of industrial environments. Whether  
your new Advantech equipment is destined for the laboratory or the  
factory floor, you can be assured that your product will provide the  
reliability and ease of operation for which the name Advantech has  
come to be known.  
Your satisfaction is our primary concern. Here is a guide to  
Advantech’s customer services. To ensure you get the full benefit of  
our services, please follow the instructions below carefully.  
Technical Support  
We want you to get the maximum performance from your products.  
So if you run into technical difficulties, we are here to help. For the  
most frequently asked questions, you can easily find answers in your  
product documentation. These answers are normally a lot more  
detailed than the ones we can give over the phone.  
So please consult this manual first. If you still cannot find the answer,  
gather all the information or questions that apply to your problem, and  
with the product close at hand, call your dealer. Our dealers are well  
trained and ready to give you the support you need to get the most  
from your Advantech products. In fact, most problems reported are  
minor and are able to be easily solved over the phone.  
In addition, free technical support is available from Advantech  
engineers every business day. We are always ready to give advice on  
application requirements or specific information on the  
installation and operation of any of our products.  
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Product Warranty  
Advantech warrants to you, the original purchaser, that each of its  
products will be free from defects in materials and workmanship for  
one year from the date of purchase.  
This warranty does not apply to any products which have been  
repaired or altered by persons other than repair personnel authorized  
by Advantech, or which have been subject to misuse, abuse, accident  
or improper installation. Advantech assumes no liability under the  
terms of this warranty as a consequence of such events.  
Because of Advantech’s high quality-control standards and rigorous  
testing, most of our customers never need to use our repair service. If  
an Advantech product is defective, it will be repaired or replaced at no  
charge during the warranty period. For out-of-warranty repairs, you  
will be billed according to the cost of replacement materials, service  
time and freight. Please consult your dealer for more details.  
If you think you have a defective product, follow these steps:  
1. Collect all the information about the problem encountered. (For  
example, type of PC, CPU speed, Advantech products used, other  
hardware and software used, etc.) Note anything abnormal and list  
any on-screen messages you get when the problem occurs.  
2. Call your dealer and describe the problem. Please have your  
manual, product, and any helpful information readily available.  
3. If your product is diagnosed as defective, obtain an RMA (return  
material authorization) number from your dealer. This allows us to  
process your return more quickly.  
4. Carefully pack the defective product, a fully-completed Repair and  
Replacement Order Card and a photocopy proof of purchase date  
(such as your sales receipt) in a shippable container. A product  
returned without proof of the purchase date is not eligible for  
warranty service.  
5. Write the RMA number visibly on the outside of the package and  
ship it prepaid to your dealer.  
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Initial inspection  
Before you begin installing your card, please make sure that the  
following materials have been shipped:  
• 1 PCA-6175 Pentium® II single board computer  
• 1 Pentium II CPU and cooling fan (optional)  
• 1 PCA-6175 user's manual  
• 1 bus master & BIOS utility driver  
• 1 FDD cable  
• 2 EIDE HDD cables  
• 1 printer cable  
• 1 ivory cable for keyboard and mouse  
• 1 ATX-to-PS/2 power cable  
• 1 Pentium II CPU retention module  
If any of these items are missing or damaged, contact your  
distributor or sales representative immediately.  
We have carefully inspected the PCA-6175 mechanically and  
electrically before shipment. It should be free of marks and scratches  
and in perfect working order upon receipt.  
As you unpack the PCA-6175, check it for signs of shipping damage.  
(For example, damaged box, scratches, dents, etc.) If it is damaged or  
it fails to meet the specifications, notify our service department or  
your local sales representative immediately. Also notify the carrier.  
Retain the shipping carton and packing material for inspection by the  
carrier. After inspection, we will make arrangements to repair or  
replace the unit.  
Caution! Always ground yourself to remove any static charge  
before touching the CPU card. Modern electronic  
devices are very sensitive to static electric charges.  
Try to use a grounding wrist strap at all times. Place  
all electronic components on a static-dissipative  
surface or in a static-shielded bag when they are not  
in the chassis.  
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Contents  
Chapter 1 Hardware Configuration ....... 1  
1.1 Introduction ............................................................ 2  
1.2 Features .................................................................. 3  
1.3 Specifications ........................................................ 4  
System .................................................................................................. 4  
Memory ................................................................................................. 4  
Input/Output .......................................................................................... 4  
Industrial features ................................................................................. 5  
Mechanical and environmental specifications ...................................... 5  
1.4 Board Layout: Main Features ............................... 6  
1.5 Jumpers and Connectors...................................... 7  
1.6 Board Layout: Jumper Locations......................... 9  
1.7 Board Layout: Connector Locations.................. 10  
1.8 Safety Precautions .............................................. 11  
1.9 Jumper Settings................................................... 12  
1.9.1 How to set jumpers .................................................................... 12  
1.9.2 CPU core frequency (J5) ........................................................... 12  
1.9.3 CMOS clear (J6) ........................................................................ 13  
1.9.4 Watchdog timer output (J8) ....................................................... 13  
1.9.5 CPU clock select (J11) .............................................................. 14  
1.9.6 DiskOnChip® 2000 Flash disk address select (J12) .................. 15  
1.10 System Memory ................................................... 16  
1.11 Memory Installation Procedures ........................ 18  
1.12 Cache Memory ..................................................... 19  
1.13 Mounting the CPU and Cooling Modules........... 20  
1.14 On-board Support Bracket.................................. 22  
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Chapter 2 Connecting Peripherals ..... 23  
2.1 Primary (CN6) and Secondary (CN7) IDE  
Connectors ........................................................... 24  
2.2 Floppy Drive Connector (CN13).......................... 24  
2.3 Parallel Port Connector (CN8) ............................ 25  
2.4 Keyboard & PS/2 Mouse Connector (CN12) ...... 25  
2.5 Serial Ports (CN9: COM1; CN10: COM2) ............ 26  
2.6 Front Panel Connectors  
(CN2, CN3, CN4, J1 and J2)................................. 27  
2.6.1 Keyboard lock and power on LED (CN2) .................................. 27  
2.6.2 External speaker (CN3) ............................................................. 27  
2.6.3 IDE LED (CN4) .......................................................................... 27  
2.6.4 ATX soft power switch (J1)........................................................ 27  
2.6.5 Reset (J2) .................................................................................. 27  
2.7 ATX Power Control Connectors (J7 and J1) ..... 28  
2.7.1 ATX feature connector (J7)  
and soft power switch connector (J1) ................................................. 28  
2.7.2 Controlling the soft power switch............................................... 29  
2.8 USB Connector (CN11)........................................ 29  
2.9 IR Connector (CN1).............................................. 29  
2.10 External Keyboard Connector (J10) ................... 29  
2.11 External Suspend Switch Lead (SMI) (J3) ......... 30  
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Chapter 3 Award BIOS Setup .............. 31  
3.1 Introduction .......................................................... 32  
3.2 Entering Setup ..................................................... 32  
3.3 Standard CMOS Setup......................................... 32  
3.4 BIOS Features Setup ........................................... 33  
3.4.1 Virus Warning ............................................................................ 33  
3.4.2 Quick Power On Self Test ......................................................... 34  
3.4.3 Boot Sequence .......................................................................... 34  
3.4.4 Boot Up Floppy Seek ................................................................ 34  
3.4.5 Boot Up NumLock Status .......................................................... 35  
3.4.6 Boot Up System Speed ............................................................. 35  
3.4.7 IDE HDD Block Mode ................................................................ 35  
3.4.8 Gate A20 option......................................................................... 35  
3.4.9 Typematic Rate setting.............................................................. 35  
3.4.10 Typematic Rate (Char/Sec) ..................................................... 35  
3.4.11 Typematic Delay (msec).......................................................... 36  
3.4.12 Security Option ........................................................................ 36  
3.4.13 OS select for DRAM>64 MB.................................................... 36  
3.4.14 Video BIOS Shadow ................................................................ 36  
3.4.15 C8000 - CFFFF Shadow / DC000-DFFFF Shadow ................ 36  
3.5 CHIPSET Features Setup .................................... 37  
3.6 Power Management Setup .................................. 38  
3.6.1 Power Management .................................................................. 38  
3.6.2 HDD Power Management.......................................................... 38  
3.6.3 IRQ Activity ................................................................................ 39  
3.7 PCI Configuration Setup ..................................... 39  
3.7.1 Load BIOS Defaults ................................................................... 39  
3.7.2 Load Setup Defaults .................................................................. 39  
3.8 Integrated Peripherals ......................................... 40  
3.9 Password Setting................................................. 41  
3.10 IDE HDD Auto Detection...................................... 41  
3.11 Save & Exit Setup ................................................ 42  
3.12 Exit Without Saving ............................................. 42  
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Appendix A Programming the  
Watchdog Timer ................................ 43  
Programming the Watchdog Timer ............................ 44  
Appendix B Pin Assignments ............. 47  
B.1 COM1/COM2 RS-232 Serial Port (CN9,CN10) .... 48  
B.2 Keyboard and Mouse Connnector (CN12) ......... 48  
B.3 External Keyboard Connector (J10) ................... 48  
B.4 ATX Feature Connector (J7) ............................... 49  
B.5 IDE Hard Drive Connector (CN6, CN7) ............... 49  
B.6 USB Connector (CN11)........................................ 50  
B.7 CPU Fan Power Connector (CN5)....................... 50  
B.8 Floppy Drive Connector (CN13).......................... 51  
B.9 Parallel Port Connector (CN8) ............................ 52  
B.10 IR Connector (CN1).............................................. 53  
B.11 HDD LED Connector (CN4) ................................. 53  
B.12 Power LED and Keylock Connector (CN2) ........ 53  
B.13 External Speaker (CN3) ....................................... 54  
B.14 System I/O Ports .................................................. 55  
B.15 DMA Channel Assignments ................................ 56  
B.16 Interrupt Assignments......................................... 56  
B.17 1st MB Memory Map ............................................ 57  
Appendix C DOC® 2000 Installation  
Guide .................................................. 59  
C.1 DiskOnChip 2000 Quick Installation Guide ....... 60  
C.1.1 DiskOnChip 2000 installation instructions ................................ 60  
C.1.2 Additional information and assistance ...................................... 61  
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1
Hardware Configuration  
This chapter gives background  
information on the PCA-6175. It then  
shows you how to configure the card to  
match your application and prepare it for  
installation into your PC.  
Sections include:  
• Card specifications  
• Board layout  
• Safety precautions  
• Jumper settings  
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1.1 Introduction  
The PCA-6175 industrial grade CPU card uses Intel's highly  
acclaimed Pentium® II processor and Intel 440LX PCI chipset. The  
card works with standard ISA or PCI/ISA-bus passive backplanes.  
The CPU provides 512 KB on-chip L2 cache, eliminating the need for  
external SRAM chips. It has two PCI EIDE interfaces (for up to four  
devices), and an FDD interface (for up to two devices). Other features  
include two RS-232 serial ports (16C550 UARTs with 16-byte FIFO  
or compatible), one enhanced parallel port (supports EPP/ECP), and  
support for two USB (Universal Serial Bus) ports. The PCI BUS  
Master IDE controller supports Ultra DMA/33 operation. This  
provides data transfer rates of over 33 MB/sec, and allows drive  
capacities up to 8.4 GB. System BIOS supports boot-up from an IDE  
CD-ROM.  
A backup of CMOS data is stored in the Flash memory, which  
protects data even after a battery failure. Also included is a 63-level  
watchdog timer, which resets the CPU or generates an interrupt if a  
program cannot be executed normally. This enables reliable operation  
in unattended environments.  
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1.2 Features  
• Intel slot 1architecture  
• Pentium® II processor up to 333 MHz  
• Intel82440LXPCIset  
• ThreeDIMMsocketsforSDRAMupto384MB;supportsECC  
• AwardFlashBIOS  
• On-board ATX power control connector to meet ACPI  
requirements  
• Two enhanced IDE ports, supporting Ultra DMA/33, PIO Mode 4  
and DMA Mode 2  
• Two USB ports  
• Two serial ports  
• One bidirectional parallel port, supports ECP/EPP/SPP  
• One floppy port and one keyboard/mouse port  
• PCI V2.1 compliant  
• PICMG 2.0 compliant  
• Additional metal bracket to provide board stability with Pentium II  
processor  
• CMOS backup battery life of 7 years  
• Supports DiskOnChip® 2000 Flash disk  
Chapter 1 Hardware Configuration  
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1.3 Specifications  
System  
CPU: Intel Pentium® II up to 333 MHz  
BIOS: Award Flash BIOS  
Green function: Supports power management operation via BIOS.  
Activated by keyboard or mouse activity  
PCI enhanced IDE hard disk drive interface: Supports up to four  
IDE (AT bus) large hard disk drives (up to 8.4 GB), or other  
enhanced IDE devices. Supports PIO Mode 4 (16.67 MB/s data  
transfer rate) and Ultra DMA/33 (33 MB/s data transfer rate). BIOS  
enabled/disabled  
Floppy disk drive interface: Supports up to two floppy disk drives,  
5¼" (360 KB and 1.2 MB) and/or 3½" (720 KB, 1.44 MB, and 2.88  
MB). BIOS enabled/disabled  
Memory  
RAM: Up to 384 MB in three available 168-pin DIMM sockets.  
Supports SDRAM  
Error correction (parity DRAM only): Modules can detect  
multi-bit memory errors. Correction of 1-bit memory errors  
Input/Output  
Bus interface: PCI/ISA bus, PICMG compliant  
Data bus: 64-bit  
Bus speed:  
ISA: 8 MHz  
PCI: 33 MHz  
DMA channels: 7  
Interrupt levels: 15  
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Enhanced parallel port: Configurable to LPT1, LPT2, LPT3 or  
disabled. Standard DB-25 female connector provided. Supports  
EPP/ECP/SPP  
Serial ports: Two RS-232 ports with 16C550 UARTs (or  
compatible) with 16-byte FIFO buffer. Supports speeds up to 115.2  
Kbps. Ports can be individually configured to COM1, COM2 or  
disabled  
Keyboard and PS/2 mouse connector: A 6-pin mini DIN  
connector is located on the mounting bracket for easy connection to  
a keyboard or PS/2 mouse. An on-board keyboard pin header  
connector is also available  
Industrial features  
Watchdog timer: Can generate a system reset or IRQ11. The  
watchdog timer is programmable, with each unit equal to one second  
(63 levels). The program uses I/O ports hex 043h and 443h to  
control the watchdog timer  
Mechanical and environmental specifications  
Operating temperature: 0 ~ 60° C (32 ~ 140° F)  
Power supply voltage: +5 V, ±12 V  
Power consumption: +5 V @ 6.0 A (for Pentium® II 233 MHz)  
+5 V @ 7.5 A (for Pentium® II 300 MHz)  
+5 V @ 4.5 A (for Pentium® II 333 MHz)  
Board size: 338 x 122 mm (13.3" x 4.8")  
Board weight: 0.5 kg (1.2 lb)  
Chapter 1 Hardware Configuration  
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1.4 Board Layout: Main Features  
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1.5 Jumpers and Connectors  
Connectors on the PCA-6175 board link it to external devices such as  
hard disk drives and a keyboard. In addition, the board has a number  
of jumpers used to configure your system for your application.  
The tables below list the function of each of the board jumpers and  
connectors. Later sections in this chapter give instructions on setting  
jumpers. Chapter 2 gives instructions for connecting external devices  
to your card.  
Table 1-1: Jumpers  
Label  
J5  
J6  
Function  
CPU core frequency  
Clear CMOS  
J8  
Watchdog output  
J11  
J12  
Clock select  
DiskOnChip® 2000 address select  
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Table 1-2: Connectors  
NumberFunction  
CN1  
CN2  
CN3  
CN4  
CN5  
CN6  
CN7  
CN8  
CN9  
CN10  
CN11  
CN12  
CN13  
CN14  
J1  
Infrared (IR) connector  
Keyboard lock  
External speaker  
IDE LED  
CPU fan connector  
Primary IDE connector  
Secondary IDE connector  
Parallel port  
Serial port: COM 1  
Serial port: COM 2  
USB port  
PS/2 keyboard and mouse  
Floppy drive connector  
(Reserved)  
ATX soft power switch  
Reset  
J2  
J3  
External SMI  
J7  
J10  
RT1  
ATX feature connector  
External keyboard connector  
(Reserved)  
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1.6 Board Layout: Jumper Locations  
Figure 1-1: Board layout: jumper locations  
Chapter 1 Hardware Configuration  
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1.7 Board Layout: Connector Locations  
Figure 1-2: Board layout: connecter locations  
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1.8 Safety Precautions  
Warning! Always completely disconnect the power cord from  
your chassis whenever you work with the hardware.  
Do not make connections while the power is on.  
Sensitive electronic components can be damaged  
by sudden power surges. Only experienced  
electronics personnel should open the PC chassis.  
Caution! Always ground yourself to remove any static charge  
before touching the CPU card. Modern electronic  
devices are very sensitive to static electric charges.  
As a safety precaution, use a grounding wrist strap  
at all times. Place all electronic components in a  
static-dissipative surface or static-shielded bag when  
they are not in the chassis.  
Chapter 1 Hardware Configuration  
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1.9 Jumper Settings  
This section provides instructions on how to configure your card by  
setting jumpers. It also includes the card's default settings and your  
options for each jumper.  
1.9.1 How to set jumpers  
You configure your card to match the needs of your application by  
setting jumpers. A jumper is the simplest kind of electric switch. It  
consists of two metal pins and a small metal clip (often protected by a  
plastic cover) that slides over the pins to connect them. To “close” a  
jumper you connect the pins with the clip. To “open” a jumper you  
remove the clip. Sometimes a jumper consists of a set of three pins,  
labeled 1, 2 and 3. In this case you connect either pins 1 and 2, or 2 and 3.  
A pair of needle-nose pliers may be useful when setting jumpers.  
1.9.2 CPU core frequency (J5)  
You must configure your PCA-6175 CPU card to the frequency of your  
Intel Pentium® II processor by setting jumper J5. The PCA-6175 is  
equpped to use Pentium processors with speeds of 233, 266, 300 and  
333 MHz. Configure your PCA-6175 as follows:  
Table 1-3: CPU core frequency (J5)  
A
B
C
D
A
A
B
B
C
C
D
D
233 MHz  
266 MHz  
300 MHz  
333 MHz  
open  
closed  
closed  
closed  
open  
open  
open  
open  
open  
open  
open  
open  
A
A
B
B
C
C
D
D
closed  
open  
open  
closed  
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1.9.3 CMOS clear (J6)  
The PCA-6175 CPU card contains a jumper that can erase CMOS data  
and reset the system BIOS information. Normally this jumper should  
be set with pins 1-2 closed. If you want to reset the CMOS data, set J6  
to 2-3 closed for just a few seconds, and then move the jumper back to  
1-2 closed. This procedure will reset the CMOS to its default setting.  
Table 1-4: CMOS clear jumper settings (J6)  
Function  
Jumper setting  
1
1
Keep CMOS data  
1-2 closed  
Clear CMOS data  
2-3 closed  
1.9.4 Watchdog timer output (J8)  
The PCA-6175 contains a watchdog timer that will reset the CPU or  
send a signal to IRQ11 in the event the CPU stops processing. This  
feature means the PCA-6175 will recover from a software failure or an  
EMI problem. The J8 jumper settings control the outcome of what the  
computer will do in the event the watchdog timer is tripped.  
Table 1-5: Watchdog timer output (J8)  
Function  
Jumper setting  
1
1
IRQ11  
1-2 closed  
Reset  
2-3 closed  
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1.9.5 CPU bus clock select (J11)  
The CPU clock varies according to the Pentium® II processor's CPU bus  
clock. There are two settings for the CPU clock, 66.6 MHz and 75 MHz.  
Table 1-6: CPU clock select jumper settings (J11)  
Function  
Jumper setting  
1
1
66.6 MHz  
1-2 closed  
75 MHz  
Note:  
2-3 closed  
75 MHz exceeds the product's specifications.  
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1.9.6 DiskOnChip® 2000 Flash disk address select  
(J12)  
The PCA-6175 includes a 32-pin socket for M-System's DiskOnChip  
2000 Flash disk module. This revolutionary solid state disk enables  
critical system information to be stored within an on-board Flash disk  
for virtually instantaneous data access.  
You must specify the memory address you wish to use for your  
DiskOnChip 2000 Flash disk module by setting jumper (J12).  
Available settings are as follows:  
Table 1-7: DiskOnChip® 2000 Flash disk memory address jumper settings  
(J12)  
Address  
1-2  
3-4  
5-6  
1
5
2
6
C800  
closed  
closed  
closed  
1
5
1
2
6
2
CC00  
D000  
closed  
closed  
closed  
open  
closed  
open  
open  
closed  
open  
5
1
6
2
D400  
open  
5
1
5
1
5
1
5
6
2
6
2
6
2
6
D800  
closed  
closed  
open  
closed  
open  
DC00  
E000  
open  
open  
closed  
open  
1
5
2
6
Disabled  
open  
open  
Chapter 1 Hardware Configuration  
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1.10 System Memory  
The top-left edge of the PCA-6175 contains three sockets for 168-pin  
dual inline memory modules (DIMMs). All three sockets use 3.3 V  
unbuffered synchronous DRAMs (SDRAM). DIMMs are available in  
capacities of 16, 32, 64 or 128 MB. The sockets can be filled in any  
combination with DIMMs of any size, giving your PCA-6175 single  
board computer between 16 and 384 MB of memory. Use the following  
table to calculate the total DRAM memory within your computer:  
Table 1-8: DIMM module allocation table  
Socket number  
168-pin DIMM memory  
(8, 16, 32, 64 or 128 MB) x 1  
(8, 16, 32, 64 or 128 MB) x 1  
(8, 16, 32, 64 or 128 MB) x 1  
1
2
3
1.10.1 Sample calculation: DIMM memory capacity  
Suppose you install a 128 MB DIMM into your PCA-6175's socket 1,  
a 32 MB DIMM into socket 2, and you leave socket 3 empty. Your  
total system memory is calculated as follows, and is 160 MB:  
Table 1-9: DIMM memory capacity sample calculation  
Socket number 168-pin DIMM memory Total memory  
1
128 MB  
32 MB  
-
x 1  
x 1  
x 1  
128 MB  
32 MB  
0 MB  
2
3
Total memory  
160 MB  
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1.10.2 Supplementary information about DIMMs  
Your PCA-6175 can accept four kinds of memory chips: EDO (with or  
without parity), and SDRAM (with or without parity). Also:  
SDRAM chips are usually thinner and have higher pin density than  
EDO chips.  
The BIOS displays EDO and SDRAM memory on the boot-up  
screen.  
Chips with 9 chips/side support parity; chips with 8 chips/side do not  
support parity.  
Single-sided modules are typically 16 or 64 MB; double-sided  
modules are usually 8, 32 or 128 MB.  
Note:  
The PCA-6175 accepts EDOs both with and without  
parity, but this is not recommended.  
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1.11 Memory Installation Procedures  
To install DIMMs, first make sure the two handles of the DIMM  
socket are in the "open" position. i.e. The handles remain outward.  
Slowly slide the DIMM module along the plastic guides on both ends  
of the socket. Then press the DIMM module right down into the  
socket, until you hear a click. This is when the two handles have  
automatically locked the memory module into the correct position of  
the DIMM socket. (See Figure 1-3.) To take away the memory  
module, just push both handles outward, and the memory module will  
be ejected by the mechanism in the socket.  
Figure 1-3: DIMM installation  
18  
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1.12 Cache Memory  
Since the second level cache has been embedded into the Pentium® II  
CPU, you do not have to take care of either SRAM chips or SRAM  
modules. The built-in second level cache in the Pentium II yields much  
higher performance than the external cache memories. The cache size  
in the Pentium II CPU is either 256 KB or 512 KB. Normally, for  
workstation and server application, the 256 KB version is enough.  
However, if your system is for heavy duty applications, the 512 KB  
version will help a lot. Specifically for our Pentium II based SBC, the  
Pentium II has another version that provides much better data security  
if combined with the DRAM ECC. Check with your vendor for various  
Pentium II models.  
Chapter 1 Hardware Configuration  
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1.13 Mounting the CPU and Cooling Modules  
The Pentium® II is a module-type CPU which runs at high speeds, for  
exampe 233 ~ 333 MHz, so the cooling mechanism becomes critical  
for system reliability. There are two types of cooling methods: one  
with a cooling fan attached to the heat sink of the Pentium II module,  
the other with a huge heat sink without any cooling fan attached.  
Both cooling methods for the Pentium II require a "retention module"  
to firmly fix the PentiumII CPU to slot 1. The following Figures 1-4  
through 1-6 illustrate the steps involved in mounting the retention  
module and installing the CPU and cooling modules.  
Step 1  
Figure 1-4: Mounting CPU and cooling modules - Step 1  
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Figure 1-5: Mounting CPU and cooling modules - Step 2  
Step 2  
Step 3  
Figure 1-6: Mounting CPU and cooling modules - Step 3  
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1.14 On-board Support Bracket  
Advantech's PCA-6175 Pentium® II also includes an on-board metal  
bracket to provide balanced support for the Pentium II processor  
cartridge.  
Figure 1-7: On-board support bracket  
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2
Connecting Peripherals  
This chapter tells how to connect  
peripherals, switches and indicators to the  
PCA-6175 board. You can access most of  
the connectors from the top of the board  
while it is installed in the chassis. If you  
have a number of cards installed, or your  
chassis is very tight, you may need to  
partially remove the card to make all the  
connections.  
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2.1 Primary (CN6) and Secondary (CN7) IDE  
Connectors  
You can attach up to four IDE (Integrated Device Electronics) drives  
to the PCA-6175’s internal controller. The primary (CN6) and  
secondary (CN7) connectors can each accommodate two drives.  
Wire number 1 on the cable is red or blue and the other wires are  
gray. Connect one end to connector CN6 or CN7 on the CPU card.  
Make sure that the red/blue wire corresponds to pin 1 on the connec-  
tor (in the upper right hand corner). See Chapter 1 for help finding the  
connector.  
Unlike floppy drives, IDE hard drives can connect in either position  
on the cable. If you install two drives to a single connector, you will  
need to set one as the master and one as the slave. You do this by  
setting the jumpers on the drives. If you use just one drive per  
connector, you should set each drive as the master. See the documen-  
tation that came with your drive for more information.  
Connect the first hard drive to the other end of the cable. Wire 1 on  
the cable should also connect to pin 1 on the hard drive connector,  
which is labeled on the drive circuit board. Check the documentation  
that came with the drive for more information.  
Connect the second hard drive to the remaining connector (CN7 or  
CN6), in the same way as described above.  
2.2 Floppy Drive Connector (CN13)  
You can attach up to two floppy disk drives to the PCA-6175's  
on-board controller. You can use any combination of 5.25"  
(360 KB/1.2 MB) and/or 3.5" (720 KB/1.44/2.88 MB) drives.  
The card comes with a 34-pin daisy-chain drive connector cable. On  
one end of the cable is a 34-pin flat-cable connector. On the other end  
are two sets of floppy disk drive connectors. Each set consists of a  
34-pin flat-cable connector (usually used for 3.5" drives) and a printed  
circuit-board connector (usually used for 5.25" drives). You can use  
only one connector in each set. The set on the end (after the twist in  
the cable) connects to the A: floppy drive. The set in the middle  
connects to the B: floppy drive.  
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2.3 Parallel Port Connector (CN8)  
The parallel port is normally used to connect the CPU card to a  
printer. The PCA-6175 includes an on-board parallel port, accessed  
through a 26-pin flat-cable connector, CN8. The card comes with an  
adapter cable which lets you use a traditional DB-25 connector. The  
cable has a 26-pin connector on one end and a DB-25 connector on  
the other, mounted on a retaining bracket. The bracket installs at the  
end of an empty slot in your chassis, giving you access to the connec-  
tor.  
The parallel port is designated as LPT1 and can be disabled or  
changed to LPT2 or LPT3 in the system BIOS setup.  
To install the bracket, find an empty slot in your chassis. Unscrew the  
plate that covers the end of the slot. Screw in the bracket in place of  
the plate. Next, attach the flat-cable connector to CN8 on the CPU  
card. Wire 1 of the cable is red or blue, and the other wires are gray.  
Make sure that wire 1 corresponds to pin 1 of CN8. Pin 1 is on the  
upper right side of CN8.  
2.4 Keyboard & PS/2 Mouse Connector (CN12)  
The PCA-6175 board provides a keyboard connector. A 6-pin  
mini-DIN connector (CN12) on the card mounting bracket supports  
single-board computer applications. The card comes with an adapter  
to convert from the 6-pin mini-DIN connector to a standard DIN  
connector and to a PS/2 mouse connector.  
Chapter 2 Connecting Peripherals  
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2.5 Serial Ports (CN9: COM1; CN10: COM2)  
The PCA-6175 offers two serial ports, CN1 as COM1 and CN2 as  
COM2. These ports can connect to serial devices (such as a mouse,  
printers, and so on) or to a communication network.  
Table 2-1: Serial port connections (COM1, COM2)  
Connector  
CN9  
CN10  
Ports  
COM1  
COM2  
Address  
3F8*, 3E8  
2F8*, 2E8  
Interrupt  
IRQ4  
IRQ3  
* default settings  
The IRQ and address ranges for both ports are fixed. However, if you  
want to disable the port or change these parameters later, you can do  
this in the system BIOS setup.  
Different devices implement the RS-232 standard in different ways. If  
you are having problems with a serial device, be sure to check the pin  
assignments for the connector.  
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2.6 Front Panel Connectors  
(CN2, CN3, CN4, J1 and J2)  
There are several external switches to monitor and control the  
PCA-6175.  
2.6.1 Keyboard lock and power on LED (CN2)  
CN2 is a 5-pin connector for the keyboard lock and power on LED  
connection. Refer to Appendix B.12 for detailed information on the  
pin assignments. If a PS/2 power supply is used, the system's power  
LED status will be one of the following:  
PS/2 Power Mode LED Status  
System On  
O n  
System Suspend  
System Off  
Flashes eight times/sec.  
O f f  
If an ATX power supply is used, refer to Section 2.7.2.  
2.6.2 External speaker (CN3)  
CN3 is a 4-pin connector for an extenal speaker connection. If there is  
no external speaker, the PCA-6175 provides an on-board buzzer as an  
alternative. To enable the buzzer, set pins 3-4 as closed.  
2.6.3 IDE LED (CN4)  
You can connect an LED to connector CN4 to indicate when the HDD  
is active.  
2.6.4 ATX soft power switch (J1)  
If your computer case is equipped with an ATX power supply, you  
should connect the power on/off button on your computer case to J1.  
This connection enables you to turn your computer on and off.  
2.6.5 Reset (J2)  
Many computer cases offer the convenience of a reset button. Connect  
the wire from the reset button to J2.  
Chapter 2 Connecting Peripherals  
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2.7 ATX Power Control Connectors  
(J7 and J1)  
2.7.1 ATX feature connector (J7) and soft power  
switch connector (J1)  
The PCA-6175 can support an advanced soft power switch function if  
an ATX power supply is used. To enable the soft power switch  
function:  
1. Take the specially designed ATX-to-PS/2 power cable out of the  
PCA-6175's accessory bag.  
2. Connect the 3-pin plug of the cable to J7 (ATX feature connector).  
3. Connect the power on/off button to J1. (A momentary type of  
button should be used.)  
Important: Be sure that the ATX power supply can take at least  
a 10 mA load on the 5 V standby lead (5VSB). If not,  
you may have difficulty powering on your system.  
Figure 2-1: Wiring for ATX soft power switch function  
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2.7.2 Controlling the soft power switch  
It is easy to control the ATX soft power switch. Pushing the button  
once will switch the system between the "On" and "Suspend" power  
modes. Pushing the button for more than 4 seconds while in the "On"  
mode will turn the system off. Users can also identify the current  
power mode through the system's power LED, as indicated below:  
ATX Power Mode LED Status  
System On  
On  
System Suspend  
System Off  
Flashes eight times/sec.  
Flashes once/sec.  
2.8 USB Connector (CN11)  
The PCA-6175 CPU card provides two USB (Universal Serial Bus)  
interfaces, which give complete plug and play, hot attach/detach for  
up to 127 external devices.The USB interfaces comply with USB  
Specification Rev. 1.0, and are fuse-protected.  
The USB interfaces are accessed through a 10-pin flat-cable  
connector, CN11. The adapter cable has a 10-pin connector on one  
end and a USB connector on the bracket.  
The USB interfaces can be disabled in the system BIOS setup.  
2.9 IR Connector (CN1)  
This connector supports the optional wireless infrared transmitting  
and receiving module. This module mounts on the system case. You  
must configure the setting through the BIOS setup.  
2.10 External Keyboard Connector (J10)  
In addition the the PS/2 mouse/keyboard connector on the PCA-  
6175's rear plate, there is also an extra on-board external keyboard  
connector. This gives system integrators greater flexibility in design-  
ing their systems.  
Chapter 2 Connecting Peripherals  
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2.11 External Suspend Switch Lead (SMI) (J3)  
This allows the user to manually place the system into a suspend  
mode or "Green" mode when the system is not in use. System activity  
is decreased to save electricity and prolong the life of certain compo-  
nents. The 2-pin connector connects to the case-mounted suspend  
switch. If you do not have a switch for the connector, you may use the  
"turbo switch", because it does not have any other function. SMI is  
activated when it detects a "short to open" moment. Therefore, leaving  
it shorted will not cause any problems. It may require one or two  
pushes  
depending on the position of the switch. Wake-up can be controlled  
by settings in the BIOS, but the keyboard will always allow wake-up.  
(The SMI lead cannot wake up the system.) If you want to use the  
SMI connector, the "Suspend" switch in the Power Management  
Setup of the BIOS software should be on the default setting "Enable".  
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3
Award BIOS Setup  
This chapter describes how to set the  
card’s BIOS configuration data.  
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3.1 Introduction  
Award’s BIOS ROM has a built-in setup program that allows users to  
modify the basic system configuration. This type of information is  
stored in battery-backed RAM so that it retains the setup information  
when the power is turned off.  
3.2 Entering Setup  
Turn on the computer and press <Del> immediately, to allow you to  
enter the setup.  
3.3 Standard CMOS Setup  
Choose the “STANDARD CMOS SETUP” option from the "INITIAL  
SETUP SCREEN" menu, and the screen below will be displayed. This  
standard setup menu allows users to configure system components  
such as date, time, hard disk drive, floppy drive, display, and memory.  
Figure 3-1: CMOS setup screen  
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3.4 BIOS Features Setup  
The “BIOS FEATURES SETUP” screen appears when choosing the  
"BIOS FEATURES SETUP" item from the "CMOS SETUP  
UTILITY" menu. It allows the user to configure the PCA-6175  
according to his particular requirements.  
Below are some major items that are provided in the BIOS  
FEATURES SETUP screen:  
Figure 3-2: BIOS features setup screen  
3.4.1 Virus Warning  
During and after the system boots up, any attempt to write to the boot  
sector or partition table of the hard disk drive will halt the system. In  
this case, a warning message will be displayed. You can run the  
anti-virus program to locate the problem.  
If Virus Warning is disabled, no warning message will appear if  
anything attempts to access the boot sector or hard disk partition.  
Chapter 3 Award BIOS Setup  
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3.4.2 Quick Power On Self Test  
This option speeds up the Power-On Self Test (POST) conducted as  
soon as the computer is turned on. When enabled, BIOS shortens or  
skips some of the items during the test. When disabled, the computer  
conducts normal POST procedures.  
3.4.3 Boot Sequence  
This function determines the sequence in which the computer will  
search the drives for the disk operating system (i.e. DOS). The BIOS  
provides the folllowing boot sequences:  
A,C, SCSI  
C,A. SCSI (Default)  
C, CDROM, A  
CDROM, C, A  
D, A, SCSI  
E, A, SCSI  
F, A, SCSI  
SCSI, A, C  
SCSI, C, A  
C only  
LS120, C  
3.4.4 Boot Up Floppy Seek  
During POST, BIOS will determine if the floppy disk drive installed is  
40 or 80 tracks. A 360 KB type drive is 40 tracks; while 720 KB, 1.2  
MB, and 1.44 MB type drives are all 80 tracks.  
Enabled BIOS searches the floppy drive to determine if it is 40 or  
80  
tracks. Note that BIOS cannot differentiate 720 KB, 1.2  
MB, and 1.44 MB type drives as they are all 80 tracks.  
Disabled BIOS will not search for the floppy drive type by track  
number. Note that there will not be any warning message if  
the drive installed is 360 KB.  
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3.4.5 Boot Up NumLock Status  
The default is “On”.  
On  
Keypad boots up to number keys.  
Keypad boots up to arrow keys.  
Off  
3.4.6 Boot Up System Speed  
High  
Low  
Sets the speed to high.  
Sets the speed to low.  
3.4.7 IDE HDD Block Mode  
Enabled Enable IDE HDD Block Mode.  
BIOS will detect the block size of the HDD and send a  
block command automatically.  
Disabled Disable IDE HDD Block Mode.  
3.4.8 Gate A20 Option  
Normal  
The A20 signal is controlled by the keyboard  
controller or chipset hardware.  
Fast (Default)  
The A20 signal is controlled by Port 92 or the  
chipset specific method.  
3.4.9 Typematic Rate Setting  
The typematic rate determines the characters per second accepted by  
the computer. The Typematic Rate setting enables or disables the  
typematic rate.  
3.4.10 Typematic Rate (Chars/Sec)  
BIOS accepts the following input values (characters/second) for  
typematic rate: 6, 8, 10, 12, 15, 20, 24, 30.  
Chapter 3 Award BIOS Setup  
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3.4.11 Typematic Delay (msec)  
Typematic delay is the time interval between the appearance of the  
first and second characters, when holding down a key. The input  
values for this category are: 250, 500, 750, 1000 (msec).  
3.4.12 Security Option  
This setting determines whether the system will boot up if the  
password is denied. Access to Setup is, however, always limited.  
System The system will not boot, and access to Setup will be  
denied if the correct password is not entered at the prompt.  
Setup  
The system will boot, but access to Setup will be denied if  
the correct password is not entered at the prompt.  
Note:  
To disable security, select "PASSWORD SETTING"  
in the main menu. At this point, you will be asked to  
enter a password. Simply press <Enter> to disable  
security. When security is disabled, the system will  
boot, and you can enter Setup freely.  
3.4.13 OS Select for DRAM > 64 MB  
This setting is under the OS/2 system.  
3.4.14 Video BIOS Shadow  
This determines whether video BIOS will be copied to RAM, which is  
optional according to the chipset design. When enabled, Video BIOS  
Shadow increases the video speed.  
3.4.15 C8000-CBFFF Shadow / DC000-DFFFF Shadow  
These determine whether optional ROM will be copied to RAM in  
blocks of 16 KB.  
Enabled Optional shadow is enabled.  
Disabled Optional shadow is disabled.  
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3.5 CHIPSET Features Setup  
By choosing the “CHIPSET FEATURES SETUP” option from the  
INITIAL SETUP SCREEN menu, the screen below will be displayed.  
This sample screen contains the manufacturer’s default values for the  
PCA-6175.  
Figure 3-3: CHIPSET features setup screen  
Note:  
If you enable the IDE HDD block mode, the  
enhanced IDE driver will be enabled.  
Chapter 3 Award BIOS Setup  
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3.6 Power Management Setup  
The power management setup controls the CPU card's “green”  
features. The following screen shows the manufacturer’s defaults.  
Figure 3-4: Power management setup screen  
3.6.1 Power Management  
This option allows you to determine if the values in power  
management are disabled, user-defined, or predefined.  
3.6.2 HDD Power Management  
You can choose to turn the HDD off after one of the time intervals  
listed, or when the system is in Suspend mode. If the HDD is in a  
power saving mode, any access to it will wake it up.  
Note:  
The HDD will not power down if the Power  
Management option is disabled.  
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3.6.3 IRQ Activity  
IRQ can be set independently. Activity on any enabled IRQ will wake  
up the system.  
3.7 PCI Configuration Setup  
Figure 3-5: PCI configuration screen  
3.7.1 Load BIOS Defaults  
“LOAD BIOS DEFAULTS” indicates the most appropriate values for  
the system parameters for minimum performance. These default  
values are loaded automatically if the stored record created by the  
setup program becomes corrupted (and therefore unusable).  
3.7.2 Load Setup Defaults  
“LOAD SETUP DEFAULTS” loads the values required by the system  
for maximum performance.  
Chapter 3 Award BIOS Setup  
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3.8 Integrated Peripherals  
Figure 3-6: Integrated peripherals  
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3.9 Password Setting  
To change the password:  
1. Choose the "PASSWORD SETTING" option from the Setup  
main menu and press <Enter>.  
The screen will display the following message:  
Enter Password:  
Press <Enter>.  
2. If the CMOS is good or if this option has been used to change the  
default password, the user is asked for the password stored in the  
CMOS. The screen will display the following message:  
Confirm Password:  
Enter the current password and press <Enter>.  
3. After pressing <Enter> (ROM password) or the current password  
(user-defined), you can change the password stored in the CMOS.  
The password must be no longer than eight (8) characters.  
Remember, to enable the password setting feature, you must first  
select either Setup or System to secure your option in "BIOS FEA-  
TURES SETUP".  
3.10 IDE HDD Auto Detection  
"IDE HDD AUTO DETECTION" automatically self-detects for the  
correct hard disk type.  
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3.11 Save & Exit Setup  
If you select this and press <Enter>, the values entered in the setup  
utilities will be recorded in the CMOS memory of the chipset. The  
microprocessor will check this every time you turn your system on  
and compare this to what it finds as it checks the system. This record  
is required for the system to operate.  
3.12 Exit Without Saving  
Selecting this option and pressing <Enter> lets you exit the setup  
program without recording any new values or changing old ones.  
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A
Programming the  
Watchdog Timer  
The PCA-6175 is equipped with a  
watchdog timer that resets the CPU or  
generates an interrupt if processing comes  
to a standstill for any reason. This feature  
ensures system reliability in industrial  
standalone or unmanned environments.  
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Programming the Watchdog Timer  
To program the watchdog timer, you must write a program which  
writes I/O port address 443 (hex). The output data is a time interval  
value. The value range is from 01 (hex) to 3F (hex), and the related  
time interval is 1 sec. to 63 sec.  
Data  
01  
02  
03  
04  
Time Interval  
1 sec.  
2 sec.  
3 sec.  
4 sec.  
3F  
63 sec.  
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After data entry, your program must refresh the watchdog timer by  
rewriting I/O port 443 (hex) while simultaneously setting it. When you  
want to disable the watchdog timer, your program should read I/O port  
443 (hex).  
The following example shows how you might program the watchdog  
timer in BASIC:  
10  
20  
30  
40  
50  
60  
70  
80  
REM Watchdog timer example program  
OUT &H443, data REM Start and restart the watchdog  
GOSUB 1000 REM Your application task #1,  
OUT &H443, data REM Reset the timer  
GOSUB 2000 REM Your application task #2,  
OUT &H043, data REM Reset the timer  
X=INP (&H043) REM, Disable the watchdog timer  
END  
1000  
REM Subroutine #1, your application task  
1070  
2000  
RETURN  
REM Subroutine #2, your application task  
2090  
RETURN  
Appendix A Programming the Watchdog Timer  
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B
Pin Assignments  
This appendix contains information of a  
detailed or specialized nature. It includes:  
• RS-232 serial port connector  
• Keyboard and mouse connector  
• External keyboard connector  
• ATX feature connector  
• IDE hard drive connector  
• USB connector  
• CPU fan power connector  
• Floppy drive connector  
• Parallel port connector  
• IR connector  
• HDD LED connector  
• Power LED and keylock connector  
• External speaker  
• System I/O ports  
• DMA channel assignments  
• Interrupt assignments  
• 1st MB memory map  
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B.1 COM1/COM2 RS-232 Serial Port  
(CN9,CN10)  
Table B-1: COM1/COM2 RS-232 serial port (CN9)  
Pin  
1
2
3
4
5
6
7
8
Signal  
DCD  
RXD  
TXD  
DTR  
GND  
DSR  
RTS  
CTS  
RI  
9
B.2 Keyboard and Mouse Connnector (CN12)  
Table B-2: Keyboard and mouse connector (CN12)  
Pin  
Signal  
1
2
3
4
5
6
KB DATA  
MS DATA  
GND  
VCC  
KB CLOCK  
MS CLOCK  
B.3 External Keyboard Connector (J10)  
Table B-3: External keyboard connector (J10)  
Pin  
1
2
Signal  
CLK  
DATA  
NC  
3
4
5
GND  
VCC  
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B.4 ATX Feature Connector (J7)  
Table B-4: ATX feature connector (J7)  
Pin  
Signal  
1
2
3
5VSB  
NC  
PS-ON  
B.5 IDE Hard Drive Connector (CN6, CN7)  
39 37 ....  
3
1
40 38 ....  
4
2
Table B-5: IDE hard drive connector (CN6, CN7)  
Pin  
1
3
5
7
Signal  
Pin  
2
4
6
8
10  
12  
14  
16  
18  
20  
22  
24  
26  
Signal  
GND  
IDE RESET*  
DATA 7  
DATA 6  
DATA 5  
DATA 4  
DATA 3  
DATA 2  
DATA 1  
DATA 0  
SIGNAL GND  
N/C  
IO WRITE  
IO READ  
IO CHANNEL READY 28  
HDACKO*  
IRQ14  
ADDR 1  
ADDR 0  
DATA 8  
DATA 9  
DATA 10  
DATA 11  
DATA 12  
DATA 13  
DATA 14  
DATA 15  
N/C  
GND  
GND  
GND  
N/C  
GND  
IOCS16  
N/C  
ADDR 2  
HARD DISK SELECT 1*  
GND  
9
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
33  
35  
37  
39  
30  
32  
34  
36  
HARD DISK SELECT 0* 38  
IDE ACTIVE* 40  
* Low active  
Appendix B Pin Assignments  
49  
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B.6 USB Connector (CN11)  
1
2
9
10  
Table B-6: USB1/USB2 connector (CN11)  
Pin  
1
USB1 Signal  
+5 V  
Pin  
2
USB2 Signal  
+5 V  
3
UV-  
4
UV-  
5
UV+  
6
UV+  
7
GND  
8
GND  
9
Chassis GND  
10  
N/C  
B.7 CPU Fan Power Connector (CN5)  
1
2
3
Table B-7: CPU fan power connector (CN5)  
Pin  
1
2
Signal  
Detect  
+12 V  
GND  
3
50  
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B.8 Floppy Drive Connector (CN13)  
33 31 ....  
3
1
34 32 ....  
4
2
Table B-8: Floppy drive connector (CN13)  
Pin  
1
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
Signal  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
Pin  
2
4
6
8
Signal  
DENSITY SELECT*  
N/C  
N/C  
INDEX*  
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
MOTOR 0*  
DRIVE SELECT 1*  
DRIVE SELECT 0*  
MOTOR 1*  
DIRECTION*  
STEP*  
WRITE DATA*  
WRITE GATE*  
TRACK 0*  
WRITE PROTECT*  
READ DATA*  
HEAD SELECT*  
DISK CHANGE*  
31  
33  
* Low active  
Appendix B Pin Assignments  
51  
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B.9 Parallel Port Connector (CN8)  
13 12 ....  
2
1
26 25 .... 15 14  
Table B-9: Parallel port connector (CN8)  
Pin  
1
2
Signal  
\STROBE  
\AUTOFD  
D0  
3
4
5
ERR  
D1  
6
7
\INIT  
D2  
8
9
\SLCTINI  
D3  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
GND  
D4  
GND  
D5  
GND  
D6  
GND  
D7  
GND  
\ACK  
GND  
BUSY  
GND  
PE  
GND  
SLCT  
N/C  
52  
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B.10 IR Connector (CN1)  
Table B-10: IR connector (CN1)  
Pin  
1
Signal  
+5 V  
2
N/C  
3
4
IR_RX  
GND  
5
IR_TX  
B.11 HDD LED Connector (CN4)  
Table B-11: HDD LED connector  
Pin  
1
Signal  
VCC  
2
LED  
B.12 Power LED and Keylock Connector (CN2)  
You can use an LED to indicate when the CPU card is on. Pin 1 of  
CN2 supplies the LED's power, and Pin 3 is the ground.  
You can use a switch (or a lock) to disable the keyboard so that the  
PC will not respond to any input. This is useful if you do not want  
anyone to change or stop a program which is running. Simply  
connect the switch from Pin 4 to Pin 5 of CN2.  
Table B-12: Power LED and keylock connector (CN2)  
Pin  
1
Function  
LED power (+5 V)  
NC  
2
3
GND  
4
Keyboard lock  
GND  
5
Appendix B Pin Assignments  
53  
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B.13 External Speaker (CN3)  
The CPU card has its own buzzer. You can also connect it to the  
external speaker on your computer chassis.  
Table B-13: External speaker (CN3)  
Pin  
1
Function  
+5 VCC  
2
GND  
3
Internal buzzer  
Speaker out  
4
54  
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B.14 System I/O Ports  
Table B-14: System I/O ports  
Addr. range (Hex) Device  
000-01F  
020-021  
022-023  
040-05F  
060-06F  
070-07F  
DMA controller  
Interrupt controller 1, master  
Chipset address  
8254 timer  
8042 (keyboard controller)  
Real-time clock, non-maskable interrupt (NMI)  
mask  
080-09F  
0A0-0BF  
0C0-0DF  
0F0  
DMA page register,  
Interrupt controller 2  
DMA controller  
Clear math co-processor  
Reset math co-processor  
Math co-processor  
Fixed disk  
Game I/O  
Parallel printer port 2 (LPT 3)  
Serial port 2  
Prototype card  
Reserved  
Parallel printer port 1 (LPT 2)  
SDLC, bisynchronous 2  
Bisynchronous 1  
Monochrome display and printer adapter (LPT1)  
Reserved  
Color/graphics monitor adapter  
Diskette controller  
Serial port 1  
0F1  
0F8-0FF  
1F0-1F8  
200-207  
278-27F  
2F8-2FF  
300-31F  
360-36F  
378-37F  
380-38F  
3A0-3AF  
3B0-3BF  
3C0-3CF  
3D0-3DF  
3F0-3F7  
3F8-3FF  
Appendix B Pin Assignments  
55  
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B.15 DMA Channel Assignments  
Table B-15: DMA channel assignments  
Channel  
Function  
0
1
2
3
4
5
6
7
Available  
Available  
Floppy disk (8-bit transfer)  
Available  
Cascade for DMA controller 1  
Available  
Available  
Available  
B.16 Interrupt Assignments  
Table B-16: Interrupt assignments  
Priority Interrupt#  
Interrupt source  
1
2
3
-
4
5
6
7
NMI  
Parity error detected  
Interval timer  
Keyboard  
Interrupt from controller 2 (cascade)  
Real-time clock  
Cascaded to INT 0A (IRQ 2)  
Available  
IRQ 0  
IRQ 1  
IRQ 2  
IRQ 8  
IRQ 9  
IRQ 10  
IRQ 11  
IRQ 12  
IRQ 13  
IRQ 14  
IRQ 15  
IRQ 3  
IRQ 4  
IRQ 5  
IRQ 6  
IRQ 7  
Available  
PS/2 mouse  
8
9
INT from co-processor  
Fixed disk controller  
Available  
Serial communication port 2  
Serial communication port 1  
Parallel port 2  
10  
11  
12  
13  
14  
15  
16  
Diskette controller (FDC)  
Parallel port 1 (print port)  
56  
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B.17 1st MB Memory Map  
Table B-17:1st MB memory map  
Addr. range (Hex)  
F000h - FFFFh  
C800h - EFFFh  
C000h - C7FFh  
B800h - BFFFh  
B000h - B7FFh  
A000h - AFFFh  
0000h - 9FFFh  
Device  
System ROM  
Unused  
VGA BIOS  
CGA/EGA/VGA text  
Unused  
EGA/VGA graphics  
Base memory  
Appendix B Pin Assignments  
57  
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58  
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C
DOC® 2000  
Installation Guide  
This appendix contains information on the  
DiskOnChip® 2000 quick installation guide. It  
includes:  
• DiskOnChip2000installation  
instructions  
• Additional information and assistance  
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C.1 DiskOnChip® 2000 Quick Installation  
Guide  
C.1.1 DiskOnChip 2000 installation instructions  
1. Make sure the target platform is powered OFF.  
2. Plug the DiskOnChip® 2000 device into its socket. Verify the  
direction is correct (pin 1 of the DiskOnChip® 2000 is aligned with  
pin 1 of the socket).  
3. Power up the system.  
4. During power up you may observe the messages displayed by the  
DiskOnChip® 2000 when its drivers are automatically loaded into  
the system's memory.  
5. At this stage the DiskOnChip® 2000 can be accessed as any disk in  
the system.  
6. If the DiskOnChip® 2000 is the only disk in the system, it will  
appear as the first disk (drive C: in DOS).  
7. If there are more disks besides the DiskOnChip 2000, the DiskOn-  
Chip® 2000 will appear by default as the last drive, unless it was  
programmed as the first drive. (Please refer to the DiskOnChip®  
2000 utilities user manual.)  
8. If you want the DiskOnChip® 2000 to be bootable:  
a . Copy the operating system files into the DiskOnChip® by using  
the standard DOS command (for example: sys d:).  
b . The DiskOnChip® should be the only disk in the systems or  
would be configured as the first disk in the system (c:) using the  
DUPDATE utility.  
DUPDATE D /S: DOC104.EXB /FIRST (set as c:)  
DUPDATE C /S: DOC104.EXB  
(set as d:)  
60  
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C.1.2 Additional information and assistance  
find Utilities Manual, Data Sheet and Application Notes. In  
addition, you can find the latest DiskOnChip® 2000 S/W  
Utilities.  
2. Contact your dealer for technical support if you need additional  
assistance, and have the following information ready:  
Product name and serial number.  
Description of your computer hardware (manufacturer, model,  
attached devices, etc.)  
Description of your software (operating system, version,  
application software, etc.)  
A complete description of the problem.  
The exact wording of any error messages.  
Appendix C DOC® 2000 Installation Guide  
61  
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62  
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