Pentium ROCKY-548TX User manual

ROCKY–548TX Ver. 6.x
Pentium®
Single Board Computer
@Copyright 1998
All Rights Reserved.
Manual forth edition Apr.10,1998
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.
Tr ade mar ks
ROCKY-548TX 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.

1
Contents
1. Introduction ........................................................ 3
1.1 Specifications.....................................................................................4
1.2 What You Have................................................................................... 5
2. Installation.......................................................... 6
2.1 ROCKY-538TXV Ver. 6.x Layout......................................................... 6
2.2 Unpacking.......................................................................................... 8
2.3 Setting the CPU of ROCKY-548TX Ver 6.x........................................... 9
2.4 PS/2 Mouse IRQ12 Setting ................................................................ 11
2.5 Watch-Dog Timer ............................................................................. 12
2.6 DiskOnChip™ Flash Disk .................................................................. 12
2.7 Clear CMOS Setup............................................................................ 13
2.8 Battery Backup for CMOS Setup ....................................................... 13
2.9 BIOS Flash Chip Write Voltage Setting ............................................. 14
3. Connection....................................................... 15
3.1 Floppy Disk Drive Connector ............................................................. 15
3.2 PCI E-IDE Disk Drive Connector........................................................ 16
3.3 Parallel Port...................................................................................... 17
3.4 Serial Ports ...................................................................................... 17
2
3.5 Keyboard Connector ......................................................................... 18
3.6 External Switches and Indicators........................................................ 18
3.7 PS/2 Mouse 6-Pin Mini-DIN Connector .............................................. 19
3.8 External Battery Connector ............................................................... 20
3.9 USB Port Connector .......................................................................... 20
3.10 IrDA Infrared Interface Port ............................................................... 20
3.11 Fan Connector .................................................................................. 21
3.12 +5V Standby Connector for ATX Power Supply ................................... 21
3.13 ATX Power Switch / Soft Power Switch Connector ............................... 22
4. AWARD BIOS Setup ....................................... 23
4.1 Getting Start..................................................................................... 23
4.2 Standard CMOS Setup ...................................................................... 24
4.3 BIOS Features Setup ........................................................................ 26
4.4 Chipset Features Setup..................................................................... 27
4.5 Integrated Peripherals ...................................................................... 28
4.6 Power Management Setup ................................................................. 29
4.7 PNP/PCI Configuration...................................................................... 30
5. E2Key Function ................................................ 31
Appendix A. Watch-Dog Timer ............................. 33

3
1
Introduction
Welcome to the ROCKY-548TX Pentium® Single Board Computer.
The ROCKY-548TX board is an ISA/PCI 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 built-in DiskOnChip™(DOC) Flash Disk for embedded
application. The DOC Flash Disk is 100% compatible to hard disk.
User can use any DOS command without any extra software utility.
The DOC currently is available from 2MB to 72MB.
An advanced high performance super AT I/O chip – Winbond
W83977TF is used in the ROCKY-538TXV board. Both on-chip
UARTs are compatible with the NS16C550. The parallel port and
IDE interface are compatible with IBM PC/AT and XT architecture's.
In addition, the ROCKY-548TX Ver. 6.x provides two 168-pin DIMM
sockets for its on-board DRAM. The RAM module accepts 8MB,
16MB, 32MB,64MB or 128B. So,the total on-board memory can be
configured from 16MB to 256MB.
ROCKY-548TX uses the advanced INTEL Chipset,430TX
which is 100% ISA/PCI compatible chipset.with PCI 2.1 standard.
1.1 Specifications :
4
The ROCKY-548TX Pentium® Single Board Computer provides the
following specification:
•CPU : Pentium® MMX up to 233Mhz, AMD K6 processor up to 300MHz,
Cyrix 6x86MX processor
•Bus : ISA bus and PCI 32-bit local bus,PCI 2.1 standard
•DMA channels : 7
•Interrupt levels : 15
•Chipset : Intel 430TX
•Real-time clock/calendar : in 430TX chipset,backup by industrial Li-
battery,3V/850mAH. .
•RAM memory : up to 256MB,SDRAM supported
•Second Cache memory : 512KB Pipelined Burst SRAM on board
•Ultr a DMA/33 IDE Inter face : up to four 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
•Bi-directional Parallel Port
•IrDA port : Support Serial Infrared(SIR) and Amplitude Shift
Keyed IR(ASKIR) interface.
•USB port : Support two USB ports for future expansion.
•Watch-dog timer : can be set by 1,2,10,20,110 or 220 seconds period.
Reset or NMI was generated when CPU did not periodically trigger the timer.
Your program use hex 043 and 443 to control the watch-dog and generate a
system r eset.
•Flash Disk - DiskOnChip™ : 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.

5
•Keyboard connector
•Mouse : PS/2 Mouse Port on-board.
•Power Consumption : +5V @ 4.5A
( Pentium/MMX-200,32MB SDRAM)
+12V @ 170mA , -12V@20mA
•Operating Temperature : 0°~ 55°C ( CPU needs Cooler)
1.2 What You Have
In addition to this User's Manual, the ROCKY-548TX package
includes the following items:
•ROCKY-548TX Pentium® Single Board Computer
•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.
6
2
Installation
This chapter describes how to install the ROCKY-548TX. At first, the
layout of ROCKY-548TX is shown, and the unpacking information
that you should be careful is described. The jumpers and switches
setting for the ROCKY-548TX's configuration, such as CPU type
selection, system clock setting, and watch dog timer, are also
included.
2.1 ROCKY-548TX Ver. 6.x Layout
< reference next page >

7 8
2.2 Unpacking
Your ROCKY-548TX Single Board Computer contains sensitive
electronic components that can be easily damaged by static
electricity.
In this section, we describe the precautions you should take while
unpacking, as well as during installation. It is very important that the
instructions be followed correctly, to avoid static damage, and to
successfully install the board.
The system board should be done on a grounded anti-static mat.
The operator should be wearing an anti-static wristband, grounded at
the same point as the anti-static mat.
Inspect the cardboard carton for obvious damage. Shipping and
handling may cause damage to your board. Be sure there are no
shipping and handing damages on the board before processing.
After opening the cardboard carton, exact the system board and
place it only on a grounded anti-static surface component side up.
Again inspect the board for damage. Press down on all the socketed
IC's to make sure that they are properly seated.
Do this only with the board place on a firm flat surface.
Note : DO NOT APPLY POWER TO THE BOARD IF IT HAS BEEN
DAMAGED.
You are now ready to install your ROCKY-548TX Single Board
Computer.

9
2.3 Setting the CPU of ROCKY-548TX 6.x
•CPU Clock Setting :
CPU Speed/Clock JP4
1-2
JP4
3-4
JP4
11-12
JP4
13-14
55MHz OPEN CLOSE CLOSE OPEN
60MHz OPEN CLOSE OPEN OPEN
66MHz OPEN OPEN OPEN OPEN
•CPU to Bus Multiple :
Multiplier JP4
5-6
JP4
7-8
JP4
9-10
1.5 x OPEN OPEN OPEN
2x CLOSE OPEN OPEN
2.5x CLOSE CLOSE OPEN
3 x OPEN CLOSE OPEN
3.5 x OPEN OPEN OPEN
4 x CLOSE OPEN CLOSE
4.5x CLOSE CLOSE CLOSE
CPU Frequency = CPU Clock x Multiplier for example
Pentium® 200MHz = 66MHz CPU Clock x 3
•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
10
•JP12 CPU Core Voltage Setting :
CPU Core
Voltage
JP12
1-2
JP12
3-4
JP12
5-6
JP12
7-8
3.5V(P54C/CS)
VRE
CLOSE CLOSE CLOSE CLOSE
3.4V(P54C/CS)
STD
OPEN CLOSE CLOSE CLOSE
3.3V CLOSE OPEN CLOSE CLOSE
3.2V OPEN OPEN CLOSE CLOSE
3.1V CLOSE CLOSE OPEN CLOSE
3.0V OPEN CLOSE OPEN CLOSE
2.9V CLOSE OPEN OPEN CLOSE
2.8V OPEN OPEN OPEN CLOSE
2.7V CLOSE CLOSE CLOSE OPEN
2.6V OPEN CLOSE CLOSE OPEN
2.5V CLOSE OPEN CLOSE OPEN
2.4V OPEN OPEN CLOSE OPEN
2.3V CLOSE CLOSE OPEN OPEN
2.2V OPEN CLOSE OPEN OPEN
2.1V CLOSE OPEN OPEN OPEN
2.0V OPEN OPEN OPEN OPEN
•Dual / Single CPU Voltage setting :
Vcore & VIO JP10 JP11 JP6 JP7
Pentium®
(P54C)
CLOSE CLOSE OPEN OPEN
Pentium®
MMX
AMD K6
Cyrix 6x86MX
Dual Voltage
OPEN OPEN CLOSE CLOSE

11
•Cyrix 6x86MX PR Rating Table
( Vcore : 2.9V,dual voltage )
PR Rating Bus MHz CPU Core
MHz
Clock
Multiplier
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 55 165 3x
6x86MX-PR200 66 166 2.5x
6x86MX-PR200 60 180 3x
6x86MX-PR233 66 200 3x
6x86MX-PR266 66 233 3.5x
•AMD K6 MMX Rating Table, dual voltage
Product Name Core
Freq
Vcore Bus MHz Multiplier
K6-233 model 6 233MHz 3.2V 66 3.5x
K6-200 model 6 200MHz 2.9V 66 3x
K6-166 model 6 166MHz 2.9V 66 2.5x
K6-300 model 7 300MHz 2.2V 66 4.5x
K6-266 model 7 266MHz 2.2V 66 4x
K6-233 model 7 233MHz 2.2V 66 3.5x
2.4 PS/2 Mouse IRQ12 Setting
The on board PS/2 mouse will use IRQ12 when operation.
.
12
•JP16 : IRQ12 Enable/Disable Setting
JP16 DESCRIPTION
CLOSE IRQ12 Enable for PS/2 Mouse Operating
OPEN PS/2 Mouse Disable. IRQ12 to bus
2.5 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 043H.
•JP13 : Watch-Dog Active Type Setting
JP13 DESCRIPTION
2-3 RESET WHEN WDT TIME-OUT
1-2 ACTIVATE NMI TO CPU WHEN WDT TIME-OUT
OPEN DISABLE WDT
•JP15: WDT Time-Out Period
PERIOD 1-2 3-4 5-6 7-8
1 sec. OPEN OPEN CLOSE OPEN
2 sec. OPEN OPEN CLOSE CLOSE
10 sec. OPEN CLOSE OPEN OPEN
20 sec. OPEN CLOSE OPEN CLOSE
110 sec. CLOSE OPEN OPEN OPEN
220 sec. CLOSE OPEN OPEN CLOSE
2.6 DiskOnChip™ Flash Disk
The DiskOnChip™ Flash Disk Chip(DOC) is produced by M-
Systems. Because the DOC is 100% 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.T There have four sockets for the DOC,thru the

13
software utility customer can combine four DOCs as an HDD drive.
Then the max. capacity will be 288MB.
Please contact ftp.icpacquire.com.tw or www.m-sys.com to get the
software utility for the multi-DOC application.
•JP17 : DiskOnChip Memory Address Setting
JP17 DOC 1 DOC 2 DOC 3 DOC 4
7-8 Enable
9-10 Enable
11-12 Enable
13-14 Enable
1-2 C8000H CA000H CC000H CE000H
3-4 D0000H D2000H D4000H D6000H
5-6 D8000H DA000H DC000H DE000H
2.7 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 JP1 pin 2-3 about 3 seconds,then
open again. Set back to normal operation mode,close pin 1-2.
•JP1 : Clear CMOS Setup (Reserve Function)
JP1 DESCRIPTION
1-2 Normal Operation
2-3 Clear CMOS Setup
2.8 BatteryBackup for CMOS Setup
There have one 4-pin header CN8 using for battery backup
function. When close the pin 1-2 will use the on board battery.
When use external battery you should take off the jumper and
use the connector as external battery connector.
14
•CN8 : Battery Backup Function
CN8 DESCRIPTION
1-2 CLOSE
3-4 OPEN
Using Internal Battery
1-2 OPEN
3-4 OPEN
Use as External Battery
Connector
2.9 BIOS Flash Chip Write Voltage Setting
The BIOS Flash Chip could be two types,one is 12V write voltage
and other one is 5V.
•JP14 : 5V/12V Flash Chip Write Voltage Setting
(This jumper is factory setting ,customer may not change it)
JP14 Description
2-3 5V Flash Write Voltage
1-2 12V Flash Write Voltage

15
3
Connection
This chapter describes how to connect peripherals, switches and
indicators to the ROCKY-548TX board.
3.1 Floppy Disk Drive Connector
ROCKY-548TX 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#
16
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#

17
3.2 PCI E-IDE Disk Drive Connector
You can attach four IDE( Integrated Device Electronics) hard disk
drives to the ROCKY-548TX IDE controller. The IDE support Ultra
DMA/33 interface.
CN1(IDE 1) : Primary IDE Connector
CN4(IDE 2) : Secondary IDE Connector
•CN1/CN4: 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 N/C 28 BALE - DEFAULT
29 N/C 30 GROUND - DEFAULT
31 INTERRUPT 32 IOCS16#-DEFAULT
33 SA1 34 N/C
35 SA0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND
18
3.3 Parallel Port
This port is usually connected to a printer, The ROCKY-548TX 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# 1 6 INITIAL IZE
17 PRINTER SELECT LN# 18 GROUND
19 GROUND 20 GROUND
21 GROUND 22 GROUND
23 GROUND 24 GROUND
25 GROUND
3.4 Serial Ports
The ROCKY-548TX offers two high speed NS16C550 compatible UARTs
with Read/Receive 16 byte FIFO serial ports.
•CN12 : Serial Port DB-9 Connector( COM1 )
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)

19
•CN13 : Serial Port 10-pin Header( COM2)
Pin No. Description Pin No. Description
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTX
4 DTR 9 RI
5 GND 10 NC
3.5 Keyboard Connector
The ROCKY-548TX provides two keyboard connectors.
•CN6 : 5-pin Header Keyboard Connector
PIN NO. DESCRIPTION
1 KEYBOARD CLOCK
2 KEYBOARD DATA
3 N/C
4 GROUND
5 +5V
•CN16 : 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.
20
JP3 : External Switches and Indicators
PIN
NO.
DESCRIPTION PIN
NO.
DESCRIPTION
1 SPEAKER
SIGNAL
2 +5V
(POWER LED)
3 N/C 4 N/C
5 N/C 6 GROUND
7 +5V 8 KEYLOCK
SIGNAL
9 RESET 10. GROUND
11 GROUND 12 GROUND
13 HDD ACTIVE# 14
15 +5V 16 SUSPEND
CONTROL
17 SWITCH CONTROL
SIGNAL
18 5V STANDBY
19 GROUND 20 5V STANDBY
3.7 PS/2 Mouse 6-pin Mini-DIN Connector
•CN11 : PS/2 Mouse Connector
PIN NO. DESCRIPTION
1 MS DATA
2 NC
3 GROUND
4 +5V
5 MS CLOCK
6 NC

21
3.8 External Battery Connector
The ROCKY-548TX built-in a 3V/850mAH industrial Li-battery for
CMOS and RTC backup. W hen normal operation will not need
external battery to backup the data. If want to connect the external
battery you could take off the CN8 ’s pin 1-2 jumper. Then connect
the external battery to pin 1-4.
•CN8 : External Battery Connector
PIN NO. DESCRIPTION
1 External Battery +
2 NC
3 N/C
4 Ground
3.9 USB Port Connector
The ROCKY-548TX built-in two USB ports for the future new I/O bus
expansion.
•CN14 : USB 0
CN15 : USB 1
CN14 CN15
1 VCC 1 Ground
2 DATA0- 2 DATA1+
3 DATA0+ 3 DATA1-
4 Ground 4 VCC
3.10 IrDA Infrared Interface Port
The ROCKY-548TX 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.
22
•CN5 : IrDA connector
PIN NO. DESCRIPTION
1 VCC
2 FIR-RX
3 IR-RX
4 Ground
5 IR-TX
6 CIRRX
3.11 Fan Connector
The ROCKY-548TX provides CPU cooling fan connector,
chassis fan connector. These connectors can supply 12V/500mA
to the cooling fan. In the connector there have a “rotation” pin . The
rotation pin is to get the fan’s rotation signal to system. So the
system BIOS could recognize the fan speed. Please note only
specified fan offers the rotation signal.
•CN7 : CPU Fan Connector
PIN NO. DESCRIPTION
1 Rotation Signal
2 12V
3 Ground
•CN9 : Chassis Fan Connector
PIN NO. DESCRIPTION
1 Rotation Signal
2 12V
3 Ground
3.12 5V Standby Connector for ATX power supply
If you use the ATX power supply then you could connect the
5V standby connector to the power supply connector’s 5V standby

23
signal. Then the standby function will work well.
•JP3 : 5V Standby Connector
PIN NO. DESCRIPTION
20 +5V Standby Signal
16 Suspend Control Signal
19 Ground
When connect to ATX power supply connector(20-pin),please
connect to the following pins.
•ATX Power Supply 20-pin power connector
1 12V 2 5V
3 5V standby 4 5V
5 PW-0K 6 -5V
7 Ground 8 Ground
9 5V 10 Ground
11 Ground 12 Ground
13 5V 14 Suspend Control
15 Ground 16 Ground
17 3.3V 18 -12V
19 3.3V 20 3.3V
3.13 ATX Pow er Sw itch / Soft Power Sw itch Connector
When use the ATX power supply the system power is controlled by
a momentary switch connected to this connector . Push the button
once will switch the system between ON and SLEEP. Pushing the
switch while in the ON mode for more than 4 seconds will turn the
system OFF. The system power LED
shows the status of the system’s power.
•JP3 : ATX Power Switch/Soft Power Switch Connector
PIN NO. DESCRIPTION
17 Switch Control Signal +
24
18 +5V Standby Signal

25
4
AWARD BIOS Setup
The ROCKY-548TX 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-On-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 AW ARD PCI/ISA BIOS Setup program, press <Del> key.
The following screen will be displayed at this time.
When choose Load BIOS Defaults will load the minimized settings
for Troubleshooting. The performance should be very poor when
use this setting.
When choose Load Setup Defaults will load optimized defaults for
regular use. Choosing this setting, will modify all applicable settings.
26
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
setup procedure,

27
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) : You could choose All Errors, No Errors
All,but Keyboard , All.but Diskette, and All,but Disk/Key
As for some embedded system which don’t need keyboard and
monitor in application, then you could choose No Errors.
4.3 BIOS Features Setup
28
This BIOS Features Setup is designed for customer‘s tuning best
performance of the ROCKY-548TX 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 - Will increase the video speed.
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.
4.4 Chipset Features Setup
This setup functions are almost working for ChipSet(Intel

29
430TX). These options are used to change the ChipSet‘s registers.
Please carefully change any default setting ,otherwise the system
could be running un-stable.
Auto Configuration : Enable or Disable
When use the 60nS general type DRAM,please enable the setting to
get the optimal timings.
SDRAM Speculative Read : Enable or Disable
When enable this option, the PCU will send predict commands to the
SDRAM, if a miss happens, the CPU will cancel this command.
Because some OS under certain situations have problem for this
feature, it is normally disable.
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.
CPU Warring Temperature : Disable,50 ..
There have a LM75 temperature sensor under the bottom of
CPU,when set the CPU Warring Tempture to a certain limit which will
help customer secure the system not burn out because of fan failed
or other accident.
Hardware Monitoring : Customer could see the working status of
this board for Current CPU T emperature, Current System
Temperature, Current CPUFAN1 Speed, Current CPUFAN2
Speed, Vcore voltage, Vio voltage,+5V,-5V,+12V,and –12V
status.
30
4.5 Integrated Peripherals
This setup is almost working for Multi-I/O Chip(W83977F ). These
options are used to change the ChipSet‘s registers. 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.

31
4.6 Power Management Setup
Power Management Setup help user handles the ROCKY-548TX
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,
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) have to be 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 W indows 3.x and W indows 95,you have to install Windows
with APM feature. A battery and power cord icon labeled “Power”
Will appear in the “Control Panel”
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4.7 PNP/PCI Configuration
The PNP/PCI Configuration help user handles the ROCKY-548TX
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.

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5
E2Key™ Function
The ROCKY-548TX 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) are written and compiled in C format. Please
check the following statement, then you will know how to implement it
easily.
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 */
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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. */
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 ROCKY-548TX’s parallel port,
otherwise will be not working.
Appendix A. Watch-Dog Timer

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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
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.
043
(hex)
Read Disable the W atch-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 JP13. 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 JP15.
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.
*