ICP PCISA-158HV User Manual

PCISA – 158HV

Pentium™ w/ VGA Half-Sized
Single Board Computer

@Copyright 1997
All Rights Reserved.
Manual second edition Sep.1,1997
The information in this document is subject to change without prior notice in
order to improve reliability, design and function and does not represent a
commitment on the part of the manufacturer.
In no event will the manufacturer be liable for direct, indirect, special,
incidental, or consequential damages arising out of the use or inability to use
the product or documentation, even if advised of the possibility of such
damages.
This document contains proprietary information protected by copyright. All
rights are reserved. No part of this manual may be reproduced by any
mechanical, electronic, or other means in any form without prior written
permission of the manufacturer.

Trademarks

PCISA-158HV is registered trademarks of Acquire Inc.,IBM PC is a registered
trademark of International Business Machines Corporation. Intel is a
registered trademark of Intel Corporation. AMI is registered trademarks of
American Megatrends, Inc. Other product names mentioned herein are used
for identification purposes only and may be trademarks and/or registered
trademarks of their respective companies.

Contents

1. Introduction...........................................................3

1.1 Specifications ..............................................................................4

1.2 What You Have ........................................................................... 5

2. Installation ............................................................6

2.1 ROCKY-518HV ...........................................................................6

2.2 Setting the CPU of PCISA-158HV............................................... 8

2.3 System Memory DRAM..............................................................10

2.4 Watch-Dog Timer ...................................................................... 11

2.5 DiskOnChip™ Flash Disk............................................................. 11

2.6 Clear CMOS Setup .................................................................... 12

3. Connection.........................................................13

3.1 Floppy Disk Drive Connector ......................................................13

3.2 PCI E-IDE Disk Drive Connector................................................14

3.3 Parallel Port ...............................................................................15

3.4 Serial Ports ................................................................................15

3.5 Keyboard Connector..................................................................16

3.6 External Switches and Indicators................................................16

1

3.7 External Speaker........................................................................ 17

3.8 PS/2 Mouse 6-Pin Mini-DIN Connector ......................................17

3.9 USB Port Connector .................................................................. 17

3.10 IrDA Infrared Interface Port …………………………………................................... 18

3.11 VGA Connector ………………………………………………………........................................18

4. AWARD BIOS Setup..........................................19

4.1 Getting Start..............................................................................19

4.2 Standard CMOS Setup............................................................... 20

4.3 BIOS Features Setup.................................................................22

4.4 Chipset Features Setup..............................................................23

4.5 Integrated Peripherals ............................................................... 24

4.6 Power Management Setup.........................................................25

4.7 PNP/PCI Configuration .............................................................. 26

5. E2Key Function ..................................................27

Appendix A. Watch-Dog Timer...............................29

2

1

Introduction

Welcome to the PCISA-158HV Pentium™ w/ VGA Single Board
Computer. The PCISA-158HV board is an ISA form factor board,
which comes equipped with high performance Pentium CPU and
advanced high performance multi-mode I/O, designed for the
system manufacturers, integrators, or VARs that want to provide
all the performance, reliability, and quality at a reasonable price.

This board has a built-in DiskOnChip™ Flash Disk socket for
embedded application. The DOC Flash Disk is software
compatible to hard disk. User can use any DOS command
without any extra software utility. The DOC currently is available
from 2MB to 72MB. There also have PROMDISK-Chip™ can be
used in the same DOC socket as an alternative solution.

An advanced high performance super AT I/O chip – Winbond
W83877F is used in the PCISA-158HV board. Both on-chip
UARTs are compatible with the NS16C550.

In addition, the PCISA-158HV provides two 72-pin SIMM
sockets for its on-board DRAM. The RAM module accepts 1MB,
2MB, 4MB, 8MB, 16MB, 32MB,and 64MB. So the total on-board
memory can be configured from 2MB to 128MB.

PCISA-158HV uses the advanced SIS Chipset,5598 which is
100% ISA/PCI compatible chipset with PCI 2.1 standard.

3

1.1 Specifications :

The PCISA-158HV Pentium w/ VGA Single Board Computer
provides the following specification:

• CPU : Pentium™/MMX up to 233/266Mhz, AMD K5/K6 processor,

Cyrix 6x86MX processor

Bus

•

• DMA channels : 7

• Interrupt levels : 15

• Chipset : Sis 5598

• VGA : Built-in the SIS 5598 Chipset
Resolution : 1280x1024,256 color,75Hz
1024x768, 64K color,75Hz
800x600,full color,90Hz

: PCISA bus, meet PCI 2.1 standard

More information :

www.sis.com.tw

• Real-time clock / calendar : Dallas 12887 or equivalent device. .

• RAM memory : 2MB to 128MB,EDO and FPM DRAM supported

• Second Cache memory : 512KB Pipelined Burst SRAM on board

• Ultra DMA/33 IDE Interface : up to two PCI Enhance IDE hard

drives. The Ultra DMA/33 IDE can handle data transfer up to
33MB/s. The best of all is that is new technology is compatible with
existing ATA-2 IDE specifications. So there is no need to do any
change for customer’ s current accessory.

• Floppy disk drive interface : two 2.88 MB, 1.44MB, 1.2MB, 720KB,

or 360KB floppy disk drives.

• Two high speed Series ports : NS16C550 compatible UARTs

•

Standard/EPP/ECP Parallel Port

• IrDA port : Support Serial Infrared(SIR) and Amplitude Shift

Keyed IR(ASKIR) interface.

4

• USB port : Support USB port for future expansion.

• Watch-dog timer : can be set by 1,2,10,20,110 or 220 seconds

period. Reset or NMI is generated when CPU does not periodically
trigger the timer. Your program uses hex 043 and 443 to control the
watch-dog and generate a system reset.

• Flash Disk - DiskOnChip™ or PROMDISK-Chip™ : The Flash Disk

provide 100% compatible with hard disk. The built-in TrueFFS
Transparent Flash Block Management and Space Reclamation will
let customer to use the Flash Disk with DOS command,no need any
extra software utility.

• Keyboard connector

• Mouse : PS/2 Mouse Port on-board.

• Power Consumption : +5V @ 4.6A

( Pentium/MMX-200,16MB EDO RAM)

+12V @ 70mA , -12V@20mA

• Operating Temperature : 0° ~ 55° C ( CPU needs Cooler)

1.2 What You Have

In addition to this

User's Manual

, the PCISA-158HV package

includes the following items:

• PCISA-158HV Single Board Computer

• RS-232/Printer Cable

• FDD/HDD Cable

• 6-pin Mini-Din to 5-pin Din Keyboard Adapter Cable

If any of these items is missing or damaged, contact the dealer
from whom you purchased the product. Save the shipping
materials and carton in case you want to ship or store the
product in the future.

5

2

Installation

This chapter describes how to install the PCISA-158HV. At first,
the layout of PCISA-158HV is shown, and the unpacking
information that you should be careful is described. The
jumpers and switches setting for the PCISA-158HV's
configuration, such as CPU type selection, system clock setting,
and watch dog timer, are also included.

2.1 PCISA-158HV's Layout

<please, refer to the next page >

6

7

2.2 Setting the CPU of PCISA-158HV

CPU Clock Setting :

•

CPU Speed/Clock JP7

1-2

50MHz
55MHz

60MHz

OPEN CLOSE CLOSE
OPEN OPEN OPEN
OPEN OPEN CLOSE

JP7
3-4

JP7
5-6

66MHz OPEN CLOSE OPEN
75MHz
83MHz

CPU to Bus Multiple :

•

Multiplier JP3

1.5 x

2x

2.5x

CLOSE OPEN OPEN
CLOSE CLOSE CLOSE

1-2

JP3
3-4

JP3
5-6

OPEN OPEN OPEN
CLOSE OPEN OPEN
CLOSE CLOSE OPEN

3 x OPEN CLOSE OPEN

3.5 x

OPEN OPEN OPEN

CPU Frequency = CPU Clock x Multiplier for example
Pentium 200MHz = 66MHz CPU Clock x 3

CPU Internal Cache setting :

•

JP3 9-10 : Close Write Through
OPEN Write Back (default)

CPU Core Voltage Selection :

•
Please check the CPU Core Voltage before you install the
CPU. Right now new Intel MMX CPU is dual voltages for
core and I/O,the I/O is 3.3V but the core is 2.8V. This kind
of CPU design will enhance the low power consumption
capability. As for the general Pentium CPU is one voltage for
I/O and Core - 3.3V,3.4V,or 3.5V

8

JP1 CPU Core Voltage Setting :

•

(The JP1 is on the power module)

CPU Core
Voltage

3.5V(P54C/CS)
VRE

3.4V(P54C/CS)
STD

3.3V

3.2V

3.1V

3.0V

2.9V

2.8V (P55C) OPEN OPEN OPEN CLOSE

2.7V

2.6V

2.5V

2.4V

2.3V

2.2V

2.1V

2.0V
JP4 Dual / Single CPU Voltage setting :

•

Vcore & VIO 1-3 2-4 3-5 4-6
Pentium

(P54C)
Pentium MMX
AMD K6
Cyrix 6x86MX
Dual Voltage

JP1
1-2

CLOSE CLOSE CLOSE CLOSE
OPEN CLOSE CLOSE CLOSE
CLOSE OPEN CLOSE CLOSE

OPEN OPEN CLOSE CLOSE
CLOSE CLOSE OPEN CLOSE
OPEN CLOSE OPEN CLOSE
CLOSE OPEN OPEN CLOSE

CLOSE CLOSE CLOSE OPEN
OPEN CLOSE CLOSE OPEN
CLOSE OPEN CLOSE OPEN
OPEN OPEN CLOSE OPEN
CLOSE CLOSE OPEN OPEN
OPEN CLOSE OPEN OPEN
CLOSE OPEN OPEN OPEN
OPEN OPEN OPEN OPEN

OPEN OPEN CLOSE CLOSE

CLOSE CLOSE OPEN OPEN

JP1
3-4

JP1
5-6

JP1
7-8

9

• Cyrix 6x86MX PR Rating Table
(Vcore : 2.9V ,dual voltage)

PR Rating Bus MHz CPU Core

6x86MX-PR133 50 100 2x
6x86MX-PR133* 55 110 2x
6x86MX-PR150 60 120 2x
6x86MX-PR150 50 125 2.5x
6x86MX-PR166 66 133 2x
6x86MX-PR166 55 138 2.5x
6x86MX-PR166 50 150 3x
6x86MX-PR166 60 150 2.5x
6x86MX-PR200 75 150 2x
6x86MX-PR200 55 165 3x
6x86MX-PR200 66 166 2.5x
6x86MX-PR200 60 180 3x
6x86MX-PR233 75 188 2.5x
6x86MX-PR233 66 200 3x
6x86MX-PR233 83 166 2x
6x86MX-PR266 66 233 3.5x
6x86MX-PR266 75 225 3x
6x86MX-PR266 83 208 2.5x

MHz

Clock
Multiplier

• AMD K6 MMX Rating Table(Dual Voltage)

Product Name Core Freq Vcore Bus MHz Multiplier
AMD-K6-233 233MHz 3.2V 66 3.5x
AMD-K6-200 200MHz 2.9V 66 3x
AMD-K6-166 166MHz 2.9V 66 2.5x

2.3 System Memory DRAM

There are two 72-pin SIMM sockets to accept Fast Paged/EDO
1MB,2MB,4MB,8MB,16MB,32MB,or 64MB memory modules.
The total capacity is from 2MB to 128MB. Customers can use
one RAM module only, but have to install at SIMM 2 which is
close to CPU.

10

2.4 Watch-Dog Timer

The Watch-Dog Timer is enabled by reading port 443H. It should
be triggered before the time-out period ends, otherwise it will
assume the program operation is abnormal and will issue a reset
signal to start again, or activate NMI to CPU. The Watch-Dog
Timer is disabled by reading port 043H.

•

JP10 : Watch-Dog Active Type Setting

JP10 DESCRIPTION
2-3 RESET WHEN WDT TIME-OUT

ACTIVATE NMI TO CPU WHEN WDT TIME-OUT
DISABLE WDT

•

1-2
OPEN

JP6: WDT Time-Out Period

PERIOD 1-2 3-4 5-6 7-8
1 sec.

2 sec.

OPEN OPEN CLOSE OPEN
OPEN OPEN CLOSE CLOSE

10 sec. OPEN CLOSE OPEN OPEN
20 sec.
110 sec.
220 sec.

OPEN CLOSE OPEN CLOSE
CLOSE OPEN OPEN OPEN
CLOSE OPEN OPEN CLOSE

2.5 DiskOnChip™ Flash Disk

Because the DOC is software compatible to hard disk and
DOS.Customer don‘ t need any extra software utility. It is just
“plug and play”,easy and reliable. Right now the DOC is
available from 2MB to 72MB.There also have PROMDISK­Chip™ can be used with the same socket. The MD-2200-xMB
series DOC will share only 8KB memory address.

•

JP8 : DiskOnChip Memory Address Setting
Address 1-2 3-4 5-6 7-8
D0000 CLOSE OPEN OPEN OPEN
D8000

OPEN CLOSE OPEN OPEN

11

2.6 Clear CMOS Setup

If want to clear the CMOS Setup(for example forgot the
password you should clear the setup and then set the password
again.),you should close the JP5 about 3 seconds, then
open again. Set back to normal operation mode, take it off

JP5: Clear CMOS Setup (Reserve Function)

•

JP5 DESCRIPTION
OPEN Normal Operation

CLOSE

Clear CMOS Setup

12

3

Connection

This chapter describes how to connect peripherals, switches and
indicators to the PCISA-158HV board.

3.1 Floppy Disk Drive Connector

PCISA-158HV board equipped with a 34-pin daisy-chain driver
connector cable.

CN2 : FDC CONNECTOR

•

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 GROUND 2 REDUCE WRITE
3 GROUND 4 N/C
5 GROUND 6 N/C
7 GROUND 8 INDEX#

9 GROUND 10 MOTOR ENABLE A#
11 GROUND 12 DRIVE SELECT B#
13 GROUND 14 DRIVE SELECT A#
15 GROUND 16 MOTOR ENABLE B#
17 GROUND 18 DIRECTION#
19 GROUND 20 STEP#
21 GROUND 22 WRITE DATA#
23 GROUND 24 WRITE GATE#
25 GROUND 26 TRACK 0#
27 GROUND 28 WRITE PROTECT#
29 GROUND 30 READ DATA#
31 GROUND 32 SIDE 1 SELECT#
33 GROUND 34 DISK CHANGE#

13

3.2 PCI E-IDE Disk Drive Connector

You can attach four IDE( Integrated Device Electronics) hard
disk drives to the PCISA-158HV IDE controller.

Please note the IDE support Ultra DMA/33 high performance
interface.

CN1 : IDE Interface Connector

•

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 RESET# 2 GROUND
3 DATA 7 4 DATA 8
5 DATA 6 6 DATA 9
7 DATA 5 8 DATA 10

9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 N/C
21 IDE DRQ 22 GROUND
23 IOW# 24 GROUND
25 IOR# 26 GROUND
27 IDE CHRDY 28 GROUND
29 IDE DACK 30 GROUND - DEFAULT
31 INTERRUPT 32 NC
33 SA1 34 N/C
35 SA0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND

14

3.3 Parallel Port

This port is usually connected to a printer, The PCISA-158HV includes
an on-board parallel port, accessed through a 26-pin flat-cable connector
CN3.

CN3 : Parallel Port Connector

•

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 STROBE# 2 DATA 0
3 DATA 1 4 DATA 2
5 DATA 3 6 DATA 4
7 DATA 5 8 DATA 6
9 DATA 7 10 ACKNOWLEDGE

11 BUSY 12 PAPER EMPTY
13 PRINTER SELECT 14 AUTO FORM FEED #
15 ERROR# 16 INITIALIZE
17 PRINTER SELECT LN# 18 GROUND
19 GROUND 20 GROUND
21 GROUND 22 GROUND
23 GROUND 24 GROUND
25 GROUND 26 N/C

3.4 Serial Ports

The PCISA-158HV offers two high speed NS16C550 compatible UARTs
with Read/Receive 16 byte FIFO serial ports.

CN12 : Serial Port DB-9 Connector( ACE0 )

•

PIN NO. DESCRIPTION

1 DATA CARRIER DETECT (DCD)

2 RECEIVE DATA (RXD)

3 TRANSMIT DATA (TXD)

4 DATA TERMINAL READY (DTR)

5 GROUND (GND)

6 DATA SET READY (DSR)

7 REQUEST TO SEND (RTS)

8 CLEAR TO SEND (CTS)

9 RING INDICATOR (RI)

15

CN8 : Serial Port 10-pin Header( ACE1)

•

Pin No. Description Pin No. Description
1 DCD 2. DSR
3 RXD 4 RTS

5 TXD 6 CTS
7 DTR 8 RI
9 GND 10 NC

3.5 Keyboard Connector

The PCISA-158HV provides two keyboard connectors.

CN14 : 5-pin Header Keyboard Connector

•

PIN NO. DESCRIPTION

1 KEYBOARD CLOCK
2 KEYBOARD DATA
3 N/C
4 GROUND
5 +5V

CN15 : 6-pin Mini-DIN Keyboard Connector

•

PIN NO. DESCRIPTION

1 KEYBOARD DATA
2 N/C
3 GROUND
4 +5V
5 KEYBOARD CLOCK
6 N/C

3.6 External Switches and Indicators

There are many external switches and indicators for monitoring
and controlling your CPU board.

CN11 : KeyLock and Power LED

•

PIN NO. DESCRIPTION

1 +5V
2 N/C
3 Ground
4 KeyLock Signal
5 Ground

16

CN9 : RESET BUTTON

•

PIN NO. DESCRIPTION

1 EXTERNAL RESET
2 GROUND

CN16 : HDD LED

•

PIN NO. DESCRIPTION

1 HDD ACTIVE #
2 +5V

3.7 External Speaker

The PCISA-158HV has its own buzzer, you also can connect to
the external speaker through the connector CN10..

CN10 : Speaker Connector

•

PIN NO. DESCRIPTION

1 +5V
2 Speaker Signal

3.8 PS/2 Mouse 6-pin Mini-DIN Connector

CN7 : PS/2 Mouse Connector

•

PIN NO. DESCRIPTION

1 MS DATA
2 NC
3 GROUND
4 +5V
5 MS CLOCK
6 NC

3.9 USB Port Connector

The PCISA-158HV built-in USB ports for the future new I/O bus
expansion.

17

CN13 : USB Connector

•

1 VCC
2 DATA­3 DATA+
4 GROUND

3.10 IrDA Infrared Interface Port

The PCISA-158HV built-in a IrDA port which support Serial
Infrared(SIR) or Amplitude Shift Keyed IR(ASKIR) interface.
When use the IrDA port have to set SIR or ASKIR model in the
BIOS’ s Peripheral Setup’ s COM 2. Then the normal RS-232
COM 2 will be disabled.

•

CN4 : IrDA connector

PIN NO. DESCRIPTION

1 VCC
2 NC
3 IR-RX
4 Ground
5 IR-TX

3.11 VGA Connector

The PCISA-158HV built-in 15-pin VGA connector directly to your
CRT monitor.

• CN5 : 15-pin Female Connector

1 RED 2 GREEN
3 BLUE 4 NC
5 GROUND 6 GROUND
7 GROUND 8 GROUND

9 NC 10 GROUND
11 NC 12 DDC DAT
13 HSYNC 14 VSYNC
15 DDCCLK

18

4

AWARD BIOS Setup

The PCISA-158HV uses the AWARD PCI/ISA BIOS for system
configuration. The AWARD BIOS setup program is designed to
provide maximum flexibility in configuring the system by offering
various options which may be selected for end-user
requirements. This chapter is written to assist you in the proper
usage of these features.

4.1 Getting Start

When power on the system, the BIOS will enter the Power-On­Self-Test routines. These routines will be executed for system
test and initialization and system configuration verification. After
the POST routines are completed, the following message
appears :

" Hit DEL if you want to run SETUP"

To access AWARD PCI/ISA BIOS Setup program, press <Del>
key. The following screen will be displayed at this time.

When choose
settings for Troubleshooting. The performance should be very
poor when use this setting.

When choose
for regular use. Choosing this setting, will modify all applicable
settings.

Load BIOS Defaults

Load Setup Defaults

19

will load the minimized

will load optimized defaults

4.2 Standard CMOS Setup

The Standard CMOS Setup is used for basic hardware system
configuration. The main function is for Date/Time setting and
Floppy/Hard Disk Drive setting. Please refer the following screen
for this setup.

For IDE hard disk drive setup,please check the following
possible

20

setup procedure,

1. Use the Auto setting for detection during bootup.

2. Use the IDE HDD AUTO DETECTION in the main menu to
automatically enter the drive specifications.

3. Manually enter the specifications by yourself from
the ”User“ option.

Halt On (All Errors) :

All,but Keyboard , All.but Diskette

As for some embedded system which don’ t need keyboard and
monitor in application,then you could choose No Errors.

You could choose

All Errors, No Errors

All,but Disk/Key

, and

4.3 BIOS Features Setup

21

This BIOS Features Setup is designed for customer‘ s tuning
best performance of the PCISA-158HV board. As for normal
operation customers don‘ t have to change any default setting.
The default setting is pre-set for most reliable operation.

BootUp Sequence :

You could set the sequence of A:,C:,and CDROM.

Video BIOS Shadow C000,32K:

Enable

Shadow C8000-CFFFF,D0000-D7FFF,& D8000-DFFFF :

When the installed add-on card‘ s ROM address is as
above address,you could enable the shadow to get higher
operation performance.When you enable the shadow
function,it will also reduce the memory available by between
640KB and 1024KB.

- Will increase the video speed.

4.4 Chipset Features Setup

22

This setup functions are almost working for ChipSet(SIS 5598).
These options are used to change the ChipSet‘ s registers.
Please carefully change any default setting ,otherwise the
system could be running unstable.

Auto Configuration : Enable or Disable

When use the 60nS general type DRAM,please enable the
setting to get the optimal timings.

VGA Shared Memory : 0.5MB to 4MB

The SIS5598 provides UMA architect which can share the on
board memory from 0.5MB to 4MB. The default setting is 2MB.

Memory Hole at 15M-16M : Enable or Disable

This setting reserve 15MB to 16MB memory address space for
ISA expansion cards that specifically require this setting.
Memory from 15MB and up will be unavailable to the system
because expansion cards can only access memory up to 16MB.

4.5 Integrated Peripherals

This setup is almost working for Multi-I/O Chip(W83877F ).
These options are used to change the ChipSet‘ s registers.

23

Please carefully change any default setting to meet your
application need perfectly. The only special concern is Onboard
Serial Port2. If you are using the IrDA port,you have to set this
port accordingly.

4.6 Power Management Setup

Power Management Setup help user handles the PCISA-158HV
board‘ s “ green” function. The features could shut down the
video display and hard disk to save energy for example. The
power management setup screen is as following,

24

Power Management : Disable, Max Saving, Min Saving,
or User Defined

Max Saving puts the system into power saving mode after a
brief inactivity period. Min Saving is almost the same as Max
Saving except that the inactivity period is longer. User Defined
allows you to set power saving options according to your
requirement.

Note : Advanced Power Management(APM

installed to keep the system time updated when the computer
enters suspend mode activated by the Power Management.
Under DOS environment, you need to add
DEVICE=C:\DOS\POWER.EXE in your CONFIG.SYS
Under Windows 3.x and Windows 95,you have to install
Windows with APM feature. A battery and power cord icon
labeled “Power”
Will appear in the “Control Panel”

) have to be

4.7 PNP/PCI Configuration

25

The PNP/PCI Configuration help user handles the PCISA­158HV board‘ s “ PCI” function. All PCI bus slots on the system
use INTA#, thus all installed PCI slots must be set to this value.

PNP OS Installed : Yes or No

When PNP OS is installed, interrupts may be reassigned by the
OS when the setting is Yes. When a non-PNP OS is installed or
to prevent reassigning of interrupt settings, select setting to No.

5

26

E2 Key™ Function

The PCISA-158HV provides an outstanding E2KEY™ function for
system integrator. Based on the E2KEY™ you could free to store

the ID Code, Pass Word, or Critical Data in the 1Kbit EEPROM.
Because the EEPROM is nonvolatile memory, you don’ t have to
worry the losing of the very important data.

Basically the E2KEY™ is based on a 1Kbit EEPROM which is
configured to 64 words(from 0 to 63). You could access(read or
write) each word at any time.

When you start to use the E2KEY™ you should have the utility in
the package. The software utility will include four files as follows,

README.DOC
E2KEY.OBJ
EKEYDEMO.C
EKEYDEMO.EXE.

The E2KEY.OBJ provides two library function for user to
integrate their application with E2KEY™ function. These library

(read_e2key and write_e2key)

format. Please check the following statement, then you will know
how to implement it easily.

are written and compiled in C

unsigned int read_e2key(unsigned int address)

/* This function will return the E2KEY™’ s data at address. The
address range is from 0 to 63. Return data is one word,16 bits */

void write_e2key(unsigned int address,unsigned data)

/* This function will write the given data to E2KEY™ at address.
The address range is from 0 to 63. The data value is from 0 to
0xffff. */

27

To easy start to use the function, please refer the include
EKEYDEMO.C code at first.

Please note the E2KEY™ function is based on the working of
parallel port. So you should enable the PCISA-158HV’ s parallel
port, otherwise will be not working.

Appendix A. Watch-Dog Timer

The Watch-Dog Timer is provided to ensure that standalone
systems can always recover from catastrophic conditions that
caused the CPU to crash. This condition may have occurred by

28

external EMI or a software bug. When the CPU stops working
correctly, hardware on the board will either perform a hardware
reset (cold boot) or a non-maskable interrupt (NMI) to bring the
system back to a known state.

The Watch-Dog Timer is controlled by two I/O ports.

443
(hex)
043
(hex)

To enable the Watch-Dog Timer, a read from I/O port 443H
must be performed. This will enable and activate the countdown
timer which will eventually time out and either reset the CPU or
cause an NMI depending on the setting of JP10. To ensure that
this reset condition does not occur, the Watch-Dog Timer must
be periodically refreshed by reading the same I/O port 433H.
This must be done within the time out period that is selected by
jumper group JP6.

A tolerance of at least 30% must be maintained to avoid
unknown routines within the operating system (DOS), such as
disk I/O that can be very time consuming. Therefore if the time
out period has been set to 10 seconds, the I/O port 443H must
be read within 7 seconds.

Note: when exiting a program it is necessary to disable the Watch-

Dog Timer, otherwise the system will reset.

Read Enable the refresh the Watch-Dog

Timer.

Read Disable the Watch-Dog Timer.

29

PCISA-158HV Ver. 3.0

User Manual Update Notice

2.5 DiskOnChip™ Flash Disk

The DiskOnChip™ Flash Disk Chip(DOC) is produced by M­ Systems. The MD-2200-xMB series DOC will share only 8KB memory
address.

JP8 : DiskOnChip Memory Address Setting

Address 1-2 3-4 5-6 7-8

CE000
D6000
DE000

CLOSE OPEN OPEN OPEN

OPEN CLOSE OPEN OPEN

OPEN OPEN CLOSE OPEN

2.7 Power Good Signal

PCISA-158HV provides an option to get power good status from
on-board circuit or backplane. Get power good status from
backplane, can make PCISA-158HV synchronize with external
device.

JP9: power good signal source (Reserve Function)

JP9 DESCRIPTION
2-3 On Board Power good

1-2

From backplane

3.9 USB Port

The PCISA-158HV built-in two USB ports for the future new I/O bus
expansion.

CN13, CN17 : USB Connector

1 VCC
2 DATA­3 DATA+
4 GROUND

PCISA-158HV Ver. 4.0

User Manual Update Notice

2.5 DiskOnChip™ Flash Disk

The DiskOnChip™ Flash Disk Chip(DOC) is produced by M­ Systems. The MD-2200-xMB series DOC will share only 8KB memory
address.

JP8 : DiskOnChip Memory Address Setting

Address 1-2 3-4 5-6 7-8

CE000
D6000
DE000

CLOSE OPEN OPEN OPEN

OPEN CLOSE OPEN OPEN

OPEN OPEN CLOSE OPEN

2.7 Power Good Signal

PCISA-158HV provides an option to get power good status from
on-board circuit or backplane. Get power good status from
backplane, can make PCISA-158HV synchronize with external
device.

JP9: power good signal source (Reserve Function)

JP9 DESCRIPTION
2-3 On Board Power good

1-2

From backplane

3.9 USB Port and FAN Connector

The PCISA-158HV built-in two USB ports for the future new I/O bus
expansion.

CN13, CN17 : USB Connector

1 VCC
2 DATA­3 DATA+
4 GROUND

CN19 : 3-pin Fan Connector

Pin Description
1 NC
2 +12V
3 GND