ICP ROCKY-418 User Manual

ROCKY - 418

486 DX4-100 SBC

Version 3.0

User Manual

Version 3.1

August 20, 2003

@Copyright 2003 by ICP Electronics Inc. All Rights Reserved.

Copyright Notice

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

ROCKY-418 is a registered trademark of ICP Electronics
Inc., PC/104 is trademarked of PC/104 Consortium, 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.

2

Table of Contents

CHAPTER 1. INTRODUCTION............................ 3

1.1 SPECIFICATIONS........................................................ 3

1.2 P

CHAPTER 2. INSTALLATION ............................. 6

2.1 UNPACKING PRECAUTIONS ............................................ 6

2.2 ROCKY-418'

2.3 CPU O

2.3 W

2.4 D

2.5 COM2 RS-232,RS-422

2.6 F

2.7 C

2.8 COM2 RI

ACKAGE CONTENTS ................................................... 5

S LAYOUT AND DIMENSIONS ......................... 7

PERATION SPEED SETTING.................................... 9

ATCH-DOG TIMER ................................................... 9

ISKONCHIP™ FLASH DISK ...................................... 10

OR RS-485 SETTING ................ 10

REE IRQ SETTING .................................................. 11

LEAR CMOS SETUP ................................................ 11

PIN SETTING ............................................. 12

CHAPTER 3. CONNECTION.............................. 13

3.1 FLOPPY DISK DRIVE CONNECTOR .................................. 13

3.2 IDE D

3.3 P

3.4 S

3.5 K

3.6 E

3.7 E

3.8 E

3.9 PC/104 C

ISK DRIVE CONNECTOR...................................... 14

ARALLEL PORT....................................................... 14

ERIAL PORTS ........................................................ 15

EYBOARD / PS2 MOUSE CONNECTOR............................ 16

XTERNAL SWITCHES AND INDICATORS ........................... 17

XTERNAL POWER CONNECTOR..................................... 18

XTERNAL SPEAKER .................................................. 18

ONNECTION BUS......................................... 19

1

CHAPTER 4. AMI BIOS SETUP ........................ 21

4.1 GETTING START ...................................................... 21

4.2 S

4.3 A

4.4 A

4.5 P

4.6 A

4.7 C

4.8 A

4.9 A

4.10 S

4.11 E

TANDARD CMOS SETUP........................................... 22

DVANCED CMOS SETUP........................................... 23

DVANCED CHIPSET SETUP ......................................... 25

ERIPHERAL SETUP................................................... 26

UTO-DETECT HARD DISKS ........................................ 27

HANGE SUPERVISOR / USER PASSWORD ........................ 27

UTO CONFIGURATION WITH OPTIMAL SETTINGS ................ 28

UTO CONFIGURATION WITH FAIL SAVE SETTINGS .............. 29

AVE SETTINGS AND EXIT .......................................... 29

XIT WITHOUT SAVING ............................................. 29

APPENDIX B. I/O INFORMATION................... 30

APPENDIX C. WATCH-DOG TIMER .................. 32

2

Chapter 1. Introduction

Welcome to the ROCKY-418 486 DX4-100 Single Board
Computer (Version 3.0). The ROCKY-418 is an ISA with
PC/104 form factor board, which comes equipped with
advanced high-performance chipset ACC Maple. It is
designed for the system manufacturers, integrators, or
VARs that want to provide all the performance, reliability,
and quality at a reasonable price.

All advanced high performance super I/O functions are
in the ROCKY-418. And the built-in PC/104 expansion
bus let customers easily install over thousands of
PC/104 modules from hundreds' vendors in the world.
The ROCKY-418 has external power connector that
allows it to connect to power supply directly making it
very suitable for your standalone applications.

In addition, the ROCKY-418 provides two 72-pin SIMM
(Single In-line Memory Module) sockets to install max.
32MB memory (single-sided RAM).

1.1 Specifications

The ROCKY - 418 DX4-100 Single Board Computer
provides the following specifications:

System:



 CPU : ACC Maple, includes 486 DX4-100 CPU

 Real Time Clock and battery backup : ST

(internal 8KB Cache)

M4T28 Time Keeper (Lithium Battery) for data
retention up to ten years.

3

System Memory:



sockets, support up to 32MB DRAM

Input/Output:



 IDE hard disk drive interface : Supports up to

two IDE hard disk drives and can be disabled
through BIOS Setup.

 Floppy disk drive interface : Supports two

2.88 MB, 1.44MB, 1.2MB, 720KB, or 360KB
floppy disk drives and can be disabled by BIOS
Setup.

 Two high speed serial ports : NS16C550

compatible UARTs with send/receive 16-byte
FIFOs, data rates are independently
programmable from 115.2K baud down to 50
baud. Modem control circuitry. RS-232 or RS­422/485 on the COM2.

 Multi-mode Parallel Port :

1. Standard mode - IBM PC/XT, PC/AT, PS/2
compatible bi-directional parallel port.

2. Enhanced mode - Enhanced parallel port
(EPP) compatible with IEEE 1284
specification.

Provides two 72-pin SIMM

3. High speed mode - Microsoft and Hewlett
Packard extended capabilities port ( ECP),
compatible with IEEE 1248 specification.

 Industrial Features :

 Watch-dog timer : Can be set to 1, 2, 10, 20,

110 or 220 seconds per 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.

4

 PC/104 expansion bus : A 64-pin and 40-pin,

industrial embedded-PC bus standard.

 External power connector : 8-pin male

connector (Molex 6410 series compatible)

 Keyboard connector : A 5-pin header on board

and 6-pin mini-DIN keyboard connector is
located on the mounting bracket.

 General :

 Power Consumption : max. +5V @ 2.5A

( 32MB RAM)

 Operating Temperature : 0° ~ 60° C ( CPU

needs Cooler)

 Humidity : 5% ~ 95%, non-condense

 Dimension: 180mm(W) x 122mm(L), standard

AT form factor

1.2 Package Contents

In addition to this User's Manual, the ROCKY-418 package
includes the following items:

 ROCKY-418 486 DX4-100 Single Board Computer

 Printer Cable

 FDD/HDD Cable Sets

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

Chapter 2. Installation

This chapter describes how to install the ROCKY-418.
The unpacking information that you should be careful
with is described and the layout of ROCKY-418 is shown.
The jumpers and switches setting for the ROCKY-418's
configuration, such as RS422/485 selection, system
clock setting, and watch dog timer setting …etc. are also
included.

2.1 Unpacking Precautions

Some components on ROCKY-418 SBC are very sensitive to
static electric charges and can be damaged by a sudden rush of
power. To protect it from unintended damage, be sure to follow
these precautions:

 Ground yourself to remove any static charge before

 Handle your ROCKY-418 SBC by its edges. Don’t touch IC

 Do not plug any connector or jumper while the power is on.

touching your ROCKY-418 SBC. You can do it by using a
grounded wrist strap at all times or by frequently touching
any conducting materials that is connected to the ground.

chips, leads or circuitry if not necessary.

6

2.2 ROCKY-418's Layout and Dimensions

7

8

2.3 CPU Operation Speed Setting

The system clock is generated by the ICS650, and the different
CPU clock frequency can be selected through JP2 and shown as
shown in the following table:

• CPU SPEED SETTING:

JP2 1-2 3-4

75MHz ON ON

100MHz OFF OFF

2.3 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 disable by reading port 843H. The Watch­Dog Timer time-out period can be set to 1, 2, 10, 20, 110 or
220 sec.

• JP3 : Watch-Dog Timer Type Setting

JP3 DESCRIPTION

1-2 NMI

2-3 RESET

• JP6 : WDT TIME-OUT PERIOD

JP6 1-2 3-4 5-6 7-8

1sec OFF OFF ON OFF

2sec OFF OFF ON ON
10sec OFF ON OFF OFF
20sec OFF ON OFF ON

110sec ON OFF OFF OFF
220sec ON OFF OFF ON

9

2.4 DiskOnChip™ Flash Disk

The DOC (MD-2200-xMB) is 32-pin DIP package. It is software
compatible to hard disk and DOS. Customer doesn‘t need to
install any extra software utility. “Plug and play” function is not
only easy to use but also reliable.

JP9 : DiskOnChip™ Memory Address Setting

•

1-2 CE000

3-4 D6000

5-6 DE000

2.5 COM2 RS-232,RS-422 or RS-485 setting

The COM2 (CN9) can be set as RS-232,RS-422,or RS-485
mode by the JP10, JP11 or JP14.

JP10,11,14: RS-232/422/485 setting

•

COM2 Mode JP11 JP10 JP14

RS-232 Don’t care 2-3

RS-422 2-3 1-2

RS-485 1-2 1-2

Note : IRQ3 and IRQ4 are dedicated to be used for
two Serial Ports application

1-9 , 3-10

5-11 , 7-12

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

10

2.6 Free IRQ Setting

COM1 and COM2 will use IRQ3 and IRQ4, respectively, when in
use. However, the IRQ3 and IRQ4 can be released by JP16 and
JP17 setting.

JP16 :Free IRQ3 Setting

•

OFF Enable COM2

ON

JP17 :Free IRQ4 Setting

•

OFF Enable COM1

ON

Disable COM2 (BIOS)
IRQ3 Release

Disable COM1 (BIOS)
IRQ4 Release

2.7 Clear CMOS Setup

If you forget the CMOS password, you can clear or reset it by
closing the JP18 for about 3 seconds. After the password has
been cleared from your CMOS, set it back to normal operation
mode by opening it.

JP18 : CLEAR CMOS Setup

•

OFF Normal Operation

ON CLEAR CMOS

11

2.8 COM2 RI pin setting

The CN9/COM2 RI pin (pin 9) can be set as RI, +5V or
+12V mode.

JP12/13 :COM2 RI pin setting

•

COMB CN9 Pin 9 JP12 JP13

RI 2-3 Don’t Care

+5V 1-2 2-3

+12V 1-2 1-2

12

Chapter 3. Connection

This chapter describes how to connect peripherals,
switches and indicators to the ROCKY-418 board. You
can access most of the connectors from the top of the
board while it is installed in the chassis.

3.1 Floppy Disk Drive Connector

ROCKY-418 board comes equipped with a 34-pin daisy-chain
driver connector cable. The detailed pin assignment of the
connector is specified as following table:

• 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 D4IRECTION#
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 IDE Disk Drive Connector

You can attach two IDE (Integrated Device Electronics) hard
disk drives to the ROCKY-418 internal controller. The board
comes equipped with a 40-pin flat-cable connector. The detailed
pin assignment of the connector is specified in the following
table:

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 N/C 22 GROUND
23 IOW# 24 GROUND
25 IOR# 26 GROUND
27 IDE CHRDY 28 BALE
29 N/C 30 GROUND
31 IRQ14 32 IOCS16
33 SA1 34 N/C
35 SA0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND

3.3 Parallel Port

This port is usually connected to a printer, The ROCKY-418
includes an on-board parallel port, accessed through a 26-pin
flat-cable connector CN7. The detailed pin assignment of the
connector is specified in the following table:

14

CN7 : 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 LPT 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 ROCKY-418 offers two high speed NS16C550 compatible
UARTs with Read/Receive 16 byte FIFO serial ports. These ports
let you connect to serial devices or a communication network.
Two DB-9 connectors are provides by the ROCKY-418 The
detailed pin assignment of the connectors are specified in the
following tables:

CN11 : Serial Port Connector (Port1)

•

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

CN9 : Serial Port Connector (Port2)

•

RS-232 or RS-422/485

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 DCD/TX2- 6 DSR/RX2+
2 RX/TX2+ 7 RTS/RX2­3 TX 8 CTS
4 DTR 9 RI/+5V/+12V
5 GND 10 N/C

Note:

 RS-485 Control Programming

The RTS signal is used to control/enable the RS485
output driver. It must be set to 1 for sending data
and 0 for receiving data. Please refer to the below
table for this function.

RTS 1 0

RS485 driver output input

3.5 Keyboard / PS2 Mouse Connector

The ROCKY-418 provides two keyboard connectors and one
PS/2 mouse connector. A 5-pin header connector CN13
supports passive backplane applications. Another one is a 6-pin
Mini-DIN connector CN12 on the board mounting bracket for
single board computer applications. The detailed pin
assignment of the connector is specified in the following table:

CN13 : 5-pin Header Keyboard Connector

•

PIN NO. DESCRIPTION

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

16

CN12 : 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

CN10 : 6-pin PS/2 Mouse Connector

•

PIN NO. DESCRIPTION

1 MOUSE CLOCK
2 N/C
3 MOUSE DATA
4 GND
5 +5V
6 N/C

3.6 External Switches and Indicators

There are many external switches and indicators for monitoring
and controlling your CPU board. These features are completely
optional so please install them if you need them. The detailed
pin assignment of the connectors is specified in the following
tables:

CN4 : RESET Button Connector

•

PIN NO. DESCRIPTION

1 EXTERNAL RESET
2 GROUND

CN3 : IDE HD LED Connector

•

PIN-NO DESCRIPTION

1 HDD ACTIVE#
2 +5V

17

• JP4 : POWER LED Connector

PIN NO. DESCRIPTION

1 GROUND
2 +5V

3.7 External Power Connector

The ROCKY-418 has an on-board external power connector CN8.
You can connect power directly to the CPU board for some
single-board-computer (without passive backplane) application.

• CN8 : EXTERNAL POWER CONNECTOR

PIN NO. DESCRIPTION

1 +5V
2 +12V
3 -12V
4 GND
5 GND
6 -5V
7 +12V
8 +5V

3.8 External Speaker

The ROCKY-418 has its own buzzer, you also can connect it to a
external speaker through JP5 connector.

JP5 : SPEAKER

•

PIN NO. DESCRIPTION

1 +5V
2 SPEAKER SIGNAL

18

3.9 PC/104 Connection Bus

The ROCKY-418's PC/104 expansion bus let you attach any kind
of PC/104 modules. The PC/104 bus has already become an
industrial embedded PC bus standard, so you could easily install
over thousands of PC/104 modules from hundreds of venders
worldwide.

CN5 : PC/104-40 CONNECTOR

•

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 GROUND 21 GROUND
2 MCS16# 22 SBHE#
3 IOCS16# 23 LA23
4 IRQ10 24 LA22
5 IRQ11 25 LA21
6 IRQ12 26 LA20
7 IRQ15 27 LA19
8 IRQ14 28 LA18

9 DACK0# 29 LA17
10 DRQ0 30 MEMR#
11 DACK5# 31 MEMW#
12 DRQ5 32 SD8
13 DACK6# 33 SD9
14 DRQ6 34 SD10
15 DACK7# 35 SD11
16 DRQ7 36 SD12
17 VCC 37 SD13
18 MASTER# 38 SD14
19 GROUND 39 SD15
20 GROUND 40 GROUND

CN6 : PC/104-60 CONNECTOR

•

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 IOCHCK# 33 GROUND

2 SD7 34 IRSTDRV

3 SD6 35 VCC

4 SD5 36 IRQ9

5 SD4 37 -5V

6 SD3 38 DRQ2

7 SD2 39 -12V

8 SD1 40 ZWS#

19

9 SD0 41 +12V
10 IOCHRDY 42 GROUND
11 AEN 43 SMEMW#
12 LA19 44 SMEMR#
13 LA18 45 IOW#
14 LA17 46 IOR#
15 SA16 47 DACK3#
16 SA15 48 DRQ3
17 SA14 49 DACK1#
18 SA13 50 DRQ1
19 SA12 51 REFRESH#
20 SA11 52 SYSCLK
21 SA10 53 IRQ7
22 SA9 54 N/C
23 SA8 55 IRQ5
24 SA7 56 IRQ4
25 SA6 57 IRQ3
26 SA5 58 DACK2
27 SA4 59 TC
28 SA3 60 BALE
29 SA2 61 VCC
30 SA1 62 OSC
31 SA0 63 GROUND
32 GROUND 64 GROUND

NOTE : ROCKY-418 allows directly plug in PC/104

module, it doesn‘t need PC/104
Connection Kit.

20

Chapter 4. AMI BIOS Setup

The ROCKY-418 uses AMI BIOS for system configuration,
and the AMI BIOS setup program is designed to provide
maximum flexibility in configuring the system by offering
various options which may be selected to fit end-user
requirements. This chapter is written to assist you in the
proper usage of these features.

4.1 Getting Start

When the system is powered on, the BIOS will enter the Power­On-Self-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 AMI BIOS Setup program, press <Del> key. The
following screen will be displayed at this time.

21

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 setting. Please refer to the following screen
for this setup

 To set the Date, for example, press either the arrow or

<Enter> button on your keyboard to select one of the
fields (Months, Date or Year) then press either <PgUp> or
<PgDn> to set it to the current Months, Date and Year. Do
the same steps for Time setting.

 For IDE hard disk drive setup, please check the

following possible setup procedure:

1. Use the Auto setting for detection during boot-up.

2. Use the Auto-Detect Hard Disk option in the main
menu; the computer will automatically detect the
HDD specifications.

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

22

4.3 Advanced CMOS Setup

This Advanced CMOS Setup is designed for tuning the best
performance of the ROCKY-418 board. As for normal operation
customers don‘t have to change any default setting. The default
setting is pre-set for most reliable operation.

The following screen will be displayed if you select Advanced
CMOS Setup:

You can change the value of each options by using <PgUp> and
<PgDn> key. The available values are shown on the right
screen.

 Quick Boot > Enabled: this will enable the BIOS to boot

quickly when you turn on your computer. The BIOS will
only check the first 1MB of the system memory.

 Quick Boot > Disabled: the BIOS will test all system

memory when it boots up. It will spend about 40 seconds
until it receives a Ready signal from the HDD. It will also
wait for you to press the <Del> key or not.

st

 1

, 2nd, 3rd Boot Device > to define the sequence of

boot drives after the routines check up completes. If the

st

Boot Device fails, the BIOS will attempt to boot from

1

23

the 2nd or the 3rd device. The Optimal and Fail-Safe default
settings are C:,A:,CDROM.

 Try Other Boot Devices > the BIOS will try to boot from

any other available device in the system if the 1

rd

device fails to boot.

3

st

, 2nd and

 Floppy Access Control > to define the read/write access

which is set when booting from a floppy drive.

 Hard Disk Access Control > to define the read/write

access which is set when booting from a HDD.

 S.M.A.R.T. for Hard Disks > to allow BIOS to use the

System Management and Reporting Technologies protocol

for reporting server system information on a network

 BootUp Num-Lock > to turn on/off the Num-Lock option

on a enhanced keyboard when you boot. If you turn it off,
the arrow keys on the numeric keypad can be used just as
the other set of arrow keys on the keyboard and vice versa.

 Floppy Drive Swap > this function enables you to swap

the floppy disk drives via software or without moving the
hardware.

 PS/2 Mouse Support > to testify whether or not a PS/2

mouse is supported.

 System Keyboard > to configure the keyboard. If you set

it Absent, BIOS will not report keyboard errors.

 Primary Display > to define the type of display monitor

of the system. The Absent option is for network file servers.

 Password Check > to define if a password is necessary or

not for access to the BIOS setup.

 Boot to OS/2 > if you run the OS/2 operating system,

this option must be set to yes. It means you permit BIOS
to run properly if OS/2 or any other OS that does not
support Plug and Play is found in your computer.

 System BIOS Cacheable > to define whether or not the

memory segment FOOOH can be read from or written to
cache memory. Setting it Enabled will give faster execution
in your system.

 XXXX, 16k Shadow > ROM Shadow is a technique in

which BIOS code is copied from slower ROM to faster RAM.
If you enable it then the BIOS will be executed from the
RAM. Each option allows 16KB segment to be shadowed to
the RAM.

24

4.4 Advanced Chipset Setup

 AT Bus Clock > to specify the timing for AT Bus. Optimal

Setting: Automatic.

 RAS Precharge Time > this option specifies the length of

time for Row Address Strobe to precharge.

 RAS to CAS Read Cycle Delay > to specify the relative

read cycle delay between row and column address strobe.

 RAS to CAS Write Cycle Delay > to specify the relative

write cycle delay between row and columns address strobe.

 CAS Precharge Read Time > to specify the Precharge

Read Time for Column Address Strobe.

 CAS Precharge Write Time > to specify the write time

for Column Address Strobe Precharge.

25

4.5 Peripheral Setup

 Onboard IDE > to define which on-board IDE controller

channel(s) to be used. Available options are: Primary,
Secondary, Both and Disabled.

 Onboard FDC > to enable the FDC on your board. If you

set it Auto, the BIOS will decide if the FDC should be
enabled, automatically).

 Onboard Serial Port 1 (/2) > to specify the I/O port

address of the serial port 1(/2). If you set it Auto, the
BIOS will decide the correct I/O port address,
automatically.

 Onboard Parallel Port > to specify the I/O port address

of the parallel port.

 Parallel Port Mode > to specify the mode of parallel port.
 Parallel Port IRQ > to assign certain IRQ to the parallel

port.

 Parallel Port DMA Channel > available only if the

parallel port mode is ECP.

26

4.6 Auto-Detect Hard Disks

This option detects the parameters of an IDE hard disk drive
(HDD sector, cylinder, head, etc) automatically and will put the
parameters into the Standard CMOS Setup screen. Up to 4 IDE
drives can be detected and the parameters will be listed in the
box. Press <Y> if you accept these parameters. Press <N> to
skip the next IDE drives.

Note: If your IDE HDD was formatted in previous older system,
incorrect parameters may be detected. In this case, you need
to enter the correct parameters manually or low-level format
the disk.

4.7 Change Supervisor / User Password

This option sets a password that is used to protect your system
and Setup Utility. Supervisor Password has higher priority than
User Password. Once you setup the password, the system will
always ask you to key-in password every time you enter the
BIOS SETUP. If you enter the BIOS SETUP with Supervisor
Password, you can access every setup option on the main menu
but with User Password you can only choose three setup
options (USER PASSWORD, SAVE SETTING AND EXIT and EXIT
WITHOUT SAVING). To disable these passwords, enter the

27

BIOS SETUP menu with Supervisor Password and then just
press the <Enter> key instead of entering a new password
when the 'Enter Password' prompt pop-up.

4.8 Auto Configuration with Optimal Settings

This option lets you load the Optimal default settings. These
settings are best-case values which will provide the best
performance. Whenever your CMOS RAM is damaged, this
Optimal settings will be loaded automatically.

28

4.9 Auto Configuration with Fail Save
Settings

This option lets you load the Fail Safe default settings when
something happens to your computer so that it cannot boot
normally. These settings are not the most optimal settings but
are the most stable settings.

4.10 Save Settings and Exit

Select this option when you finish setting all the parameters
and want to save them into the CMOS. Just simply press
<Enter> key and all the configuration changes will be saved.

4.11 Exit Without Saving

Select this option if you want to exit the Setup without saving
the changes that you made. Just simply press <Enter> key and
you will exit the BIOS SETUP without saving the changes.

29

Appendix B. I/O Information

I/O Address Map

I/O Address Range Description

000-01F DMA Controller #1
020-021 Interrupt Controller #1, Master
040-05F 8254 Timer
060-06F 8042 (Keyboard Controller)
070-07F Real Time Clock, NMI Mask
080-09F DMA Page Register
0A0-0BF Interrupt Controller #2
0C0-0DF DMA Controller #2

0F0 Clear Math Coprocessor Busy
0F1 Reset Math Coprocessor

0F2 Core Logic Programming Configuration
0F8-0FF Math Coprocessor
1F0-1F8 Fixed Disk

200-207 Game I/O
278-27F Parallel Printer Port 2 (LPT3)
2E8-2EF Serial Port 4

2F8-2FF Serial Port 2

300-31F Prototype Card
360-36F Reserved
378-37F Parallel Printer Port 1 (LPT2)
3B0-3BF Monochrome Display and Printer

Adapter (LPT1)

3C0-3CF Reserved

3D0-3DF Color/Graphics Monitor Adapter

3E8-3EF Serial Port 3

3F0-3F7 Diskette Controller
3F8-3FF Serial Port 1

443 Watchdog Timer Enable

843 or 043 Watchdog Timer Disable

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1st MB Memory Address Map

Memory Address Description

00000-9FFFF System Memory
A0000-BFFFF VGA Buffer
C0000-C7FFF VGA BIOS
*D6000-DDFFF DOC 2000
F0000-FFFFF System BIOS
1000000- Extend BIOS

* Default Setting

IRQ Mapping Chart

IRQ0 System Timer IRQ8 RTC Clock
IRQ1 Keyboard IRQ9 Unused
IRQ2 Cascade to IRQ Controller
IRQ3 COM2/COM4 IRQ11 Unused
IRQ4 COM1/COM3 IRQ12 PS/2 Mouse
IRQ5 Unused IRQ13 FPU
IRQ6 FDC IRQ14 Primary IDE
IRQ7 Printer IRQ15 Unused

IRQ10 Unused

DMA Channel Assignments

Channel Function

0 Available
1 Available
2 Floppy Disk (8-bit transfer)
3 Available
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available

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Appendix C. 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 be caused by
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) Read Enable the refresh the Watch-Dog Timer.
843 (hex) Read Disable the Watch-Dog Timer.

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 JP3. 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 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.

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