ICP Electronics JUKI-6752 User manual

I
JUKI-6752 Ver 1.0
Low Power Pentium® MMX 266
with CRT/LCD,Ethernet
Single Board Computer
Copyright Notice
©Copyright 2000 by ICP Electronics Inc. All Rights Reserved. Manual first edition
JUL..01, 2000.
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
JUKI-6752 is a registered trademark of ICP Electronics Inc. IBM PC is a registered
trademark of International Business Machines Corporation. Intel is a registered
trademark of Intel Corporation. Other product names mentioned herein are used for
identification purposes only and may be trademarks and/or registered trademarks of
their respective companies. www.iei.com.tw
II
Contents
Introduction.................................................................... 1
1.1 Specifications : .................................................................................... 2
1.2 What You Have................................................................................... 3
Installation ..................................................................... 4
2.1 JUKI-6752 Layout.............................................................................. 4
2.2 Unpacking ........................................................................................... 6
2.3 Compact Flash Setting (JP1) ............................................................... 7
2.4 Clear CMOS Setup (JP2) .................................................................... 7
2.5 LCD Voltage and Clock setting (JP4)................................................7
2.6 COM2 RS-232, RS-422 or RS-485 Setting (JP5) ............................... 8
2.7 COM2 PIN8 Setting (JP6)................................................................... 8
Connection .................................................................... 9
3.1 IDE Disk Drive Connector(CN1)........................................................ 9
3.2 CompactFlash Connector -- TYPE II(CN2)...................................... 10
3.3 PC/104 Connection Bus(CN3,CN4) ................................................. 11
3.4 USB Port Connector(CN5)................................................................ 12
3.5 VGA Connector(CN6) ...................................................................... 13
3.6 LCD Interface Connector(CN7)........................................................ 13
3.7 LAN RJ45 Connector (CN9)............................................................. 15

III
3.8 Serial Ports(CN10,CN11) ................................................................. 15
3.9 IrDA Infrared Interface Port (CN12-1~5) ......................................... 16
3.10 Reset Switch (CN12-6,7) ................................................................ 17
3.11 External / Internal Speaker (CN12-8~11) ....................................... 17
3.12 Hard Drive LED (CN12-13,14) ...................................................... 17
3.13 Parallel Port(CN13)......................................................................... 18
3.14 Floppy Disk Drive Connector(CN14)............................................. 18
3.15 Keyboard Connector(CN15,CN16).............................................. 19
3.16 External Power Connector(CN18) .................................................. 20
3.17 Fan Connector (FAN1) ................................................................... 20
AWARD BIOS Setup.................................................. 21
4.1 Getting Start ...................................................................................... 21
4.2 Standard CMOS Setup ...................................................................... 23
4.3 BIOS Features Setup......................................................................... 25
4.4 Chipset Features Setup...................................................................... 26
4.5 Integrated Peripherals........................................................................ 28
4.6 Power Management Setup................................................................. 29
4.7 PNP/PCI Configuration..................................................................... 31
Appendix A. Watch-Dog Timer ................................. 32
Appendix B. I/O Address Map .................................. 34
B.1 System I/O Address Map.................................................................. 34
IV
B.2 DMA channel assignments............................................................... 35
B.3 Interrupt assignments........................................................................ 36
B.4 1st MB memory map ......................................................................... 36

1
1
Introduction
Welcome to the JUKI-6752 Pentium® with VGA Single Board
Computer. The JUKI-6752 board is an ISA form factor board, which
comes equipped with high performance and low power 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 Compact Flash Disk for embedded application.
The Compact Flash Disk is 100% compatible to hard disk. User can
use any DOS command without any extra software utility.
An advanced high performance super AT I/O chip – Winbond
W83977TF-AW is used in the JUKI-6752 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 JUKI-6752 provides one 144-pin SODIMM sockets
for its on-board SDRAM. The RAM module accepts 8MB, 16MB,
32MB,64MB,128MB or 256MB. So, the total on-board memory can
be configured to 256MB.
JUKI-6752 uses the advanced INTEL Chipset,430TX
which is 100% ISA/PCI compatible chipset.with PCI 2.1 standard.
2
1.1 Specifications :
The JUKI-6752 Pentium® with VGA Single Board Computer provides
the following specification:
•CPU : Low power Pentium® MMX 166/266 MHZ(Tillamook PBGA)
•Bus : ISA bus
•DMA channels : 7
•Interrupt levels : 15
•Chipset : Intel 430TX
•PCI VGA : C&T 69000 with 2MB SDRAM built-in Chipset
Resolution : 1280x1024,256 color,60Hz
1024x768, 64K color,85Hz
800x600,full color,85Hz
•Ethernet Interface :
Chipset : Intel 82559ER 100Base-TX Fast Ethernet Controller
Ethernet Interface : Onboard 100Base-TX RJ-45+LED Connector
•H/W status Monitoring : Winbond W83782D H/W status monitoring
IC supports power supply voltages and temperatures monitoring
•Real-Time Clock/Calendar : Intel 430TX chipset, backup by industrial
Li-battery,3V/300mAH. .
•DRAM : supports up to 256MB,SDRAM.
•Second Cache Memory : 512KB Pipelined Burst SRAM on board
•Ultra DMA/33 IDE Interface : supports 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 it 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.

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•Two high speed Serial ports : NS16C550 compatible UARTs, and one
RS422/485 port with auto-direction function.
•Bi-directional Parallel Port :
•IrDA port : Support serial Infrared (SIR) .
•USB port : Support two USB ports for future expansion, USB 1.1
compliant.
•Watch-dog timer
•CompactFlash disk : The CompactFlash Storage Card also runs in True
IDE Mode that is compatible with an IDE disk drive. It can be used with a
passive adapter in a Type II socket.
•Keyboard connector
•Mouse : PS/2 Mouse Port on-board.
•Power Consumption : +5V @ 2.4A
( Pentium/MMX-266,64MB SDRAM)
•Operating Temperature : 0°~ 60 °C ( CPU needs heat sink)
1.2 What You Have
Before you install the product, please check the following materials are
included in the package:
• 1 JUKI-6752 All-in-one single board computer
• 1 CD disk for utility and drivers
• 1 3.5" IDE flat cable (40-pin 2.0mm pitch to 40-pin 2.54mm pitch)
• 1 one to two 6pin mini Din connector for keyboard and mouse
• 1 combo serial port cable (RS-232/422/485)
• 1 standard D25 connector for parallel cable
• 1 floppy cable (for 3.5" FDD only)
If any of these items are missing or damaged, contact your distributor or
sales representative immediately.
4
2
Installation
This chapter describes how to install the JUKI-6752. At first, the
layout of JUKI-6752 is shown, and the unpacking information that
you should be careful is described. The jumpers and switches
setting for the JUKI-6752's configuration, such as watch dog timer,
are also included.
2.1 JUKI-6752 Layout
(Please refer to last page)

5
6
2.2 Unpacking
Your JUKI-6752 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 JUKI-6752 Single Board
Computer.

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2.3 Compact Flash Setting (JP1)
Set the operating mode of CompactFlash disk.
•JP1 : Compact Flash Setting
Address JP1
MASTER CLOSE
SLAVE OPEN
2.4 Clear CMOS Setup (JP2)
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 JP2 pin 2-3 about 3 seconds,then
open again. Set back to normal operation mode,close pin 1-2.
•JP2 : Clear CMOS Setup (Reserve Function)
JP2 DESCRIPTION
1-2 Normal Operation
2-3 Clear CMOS Setup
2.5 LCD Voltage and Clock setting (JP4)
The LCD interface connector CN7 can provide 5V or 3.3V power supply
by selecting the JP4(2,4,6) to meet the different LCD requirement. And
the JP4(1,3,5) can provide normal or inverted Shift CLOCK for LCD.
JP4(2,4,6) DESCRIPTION
2-4 5V
4-6 3.3V
JP4(1,3,5) DESCRIPTION
1-3 Shift Clock Invert
3-5 Shift Clock (Normal)
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2.6 COM2 RS-232, RS-422 or RS-485 Setting (JP5)
The COM2 (CN11) can be set to RS-232 or RS-422/485 for industrial
field site application. Moreover when this port was set to the RS-485
mode, the board equipped with self-tuner IC will automatically sense the
data direction to eliminate the data collision. This is especially important
in WINDOWS programming which do not allow the program to catch the
control pin at your wish.
JP5 DESCRIPTION
1-2 RS232
3-4 RS422/RS485
2.7 COM2 PIN8 Setting (JP6)
In the RS232 mode,the COM2 (CN11) can supply +5V or +12V power
to the serial devices via RI pin (Pin 8) of the COM port connector . The
maximal current is 1A with fuse protection, from these two connector’s
5V/12V output. If the output is set to 12V, make sure that you have 12V
supply to the board.
CN9 Pin 8 JP6(1,3,5) JP6(2,4,6) JP5
RI Signal Don’t care 4-6 1-2
+5V 1-3 2-4 1-2
+12V 3-5 2-4 1-2

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3
Connection
This chapter describes how to connect peripherals, switches and
indicators to the JUKI-6752 board.
3.1 IDE Disk Drive Connector(CN1)
You can attach two IDE( Integrated Device Electronics) hard disk
drives to the JUKI-6752 IDE controller(Primary). The IDE supports
Ultra DMA/33 interface .
•CN1: IDE Interface Connector (2.0MM)
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
41 VCC 42 VCC
43 GROUND 44 N/C
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3.2 CompactFlash Connector -- TYPE II(CN2)
You can attach one Compact Flash Disk to CN2 that occupy the
secondary IDE channel. The CN2 supports the TYPE II and TYPE I
module.
•CN2 : CompactFlash Connector (Secondary IDE)
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GROUND 26 VCC-IN CHECK1
2 DATA 3 27 DATA 11
3 DATA 4 28 DATA 12
4 DATA 5 29 DATA 13
5 DATA 6 30 DATA 14
6 DATA 7 31 DATA 15
7 HDC_CS0# 32 HDC_CS1
8 N/C 33 N/C
9 GROUND 34 IOR#
10 N/C 35 IOW#
11 N/C 36 N/C
12 N/C 37 INTERRUPT
13 VCC_COM 38 VCC_COM
14 N/C 39 CSEL
15 N/C 40 N/C
16 N/C 41 HDD_RESET
17 N/C 42 IORDY
18 SA2 43 N/C
19 SA1 44 VCC_COM
20 SA0 45 HDD_ACTIVE#
21 DATA 0 46 N/C
22 DATA 1 47 DATA 8
23 DATA 2 48 DAYA 9
24 N/C 49 DATA 10
25 VCC-IN CHECK2 50 GROUND

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3.3 PC/104 Connection Bus(CN3,CN4)
The JUKI-6752 PC/104 expansion bus let you attach any kind of
PC/104 modules. The PC/104 bus has already become the
industrial embedded PC bus standard, so you can easily install over
thousands of PC/104 modules from hundreds of vendors in the
world. There are two PC/104 connectors on this board: PC/104-64
and PC/104-40.
•CN3 : PC/104-64 Connector
PIN NO. Description PIN NO. Description
1 IOCHCK# 2 GND
3 SD7 4 IRSTDRV
5 SD6 6 VCC
7 SD5 8 IRQ9
9 SD4 10 -5V
11 SD3 12 N/C
13 SD2 14 -12V
15 SD1 16 ZWS
17 SD0 18 +12V
19 IOCHRDY 20 GND
21 AEN 22 SMEMW#
23 SA19 24 SMEMR#
25 SA18 26 IOW#
27 SA17 28 IOR#
29 SA16 30 DACK3#
31 SA15 32 DRQ3
33 SA14 34 DACK1#
35 SA13 36 DRQ1
37 SA12 38 REFRESH#
39 SA11 40 SYSCLK
41 SA10 42 IRQ7
43 SA9 44 N/C
45 SA8 46 IRQ5
47 SA7 48 IRQ4
49 SA6 50 IRQ3
51 SA5 52 N/C
53 SA4 54 TC
55 SA3 56 BALE
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57 SA2 58 VCC
59 SA1 60 OSC
61 SA0 62 GND
63 GND 64 GND
•CN4 : PC/104-40 Connector
PIN NO. Description PIN NO Description
1 GND 2 GND
3 SBHE# 4 MCS16#
5 LA23 6 IOCS16#
7 LA22 8 IRQ10
9 LA21 10 IRQ11
11 LA20 12 IRQ12
13 LA19 14 IRQ15
15 LA18 16 IRQ14
17 LA17 18 DACK0#
19 MEMR# 20 DRQ0
21 MEMW# 22 DACK5#
23 SD8 24 DRQ5
25 SD9 26 DACK6#
27 SD10 28 DRQ6
29 SD11 30 DACK7#
31 SD12 32 DRQ7
33 SD13 34 VCC
35 SD14 36 MASTER#
37 SD15 38 GND
39 GND 40 GND
3.4 USB Port Connector(CN5)
The JUKI-6752 built in two USB ports for the future new I/O bus
expansion. It is USB 1.1 compliant
•CN5: USB 0 & USB 1
1 VCC 5 GROUND
2 DATA0- 6 DATA1+
3 DATA0+ 7 DATA1-
4 GROUND 8 VCC

13
3.5 VGA Connector(CN6)
The JUKI-6752 built in a 15-pin VGA connector that accepts the CRT
monitor.
•CN6 : 15-pin Female Connector
1 RED 2 GREEN
3 BLUE 4 NC
5 GROUND 6 GROUND
7 GROUND 8 GROUND
9 VCC 10 GROUND
11 NC 12 DDC DATA
13 HSYNC 14 VSYNC
15 DDC CLOCK
3.6 LCD Interface Connector(CN7)
The JUKI-6752 provides a 2x25-pin connector for the LCD flat panel
interface .
The JUKI-6752 comes to support TFT/DSTN LCD panels at following
display options : (This is a reference table only, may support more
type of panels)
Display type Resolution Example
TFT VGA 640X480 , 64K Color,
18bits Toshiba LTM10C209A
TFT SVGA 800X600 , 64K Color,
18bits Toshiba LTM12C275A
TFT XGA 1024X768,64K Color,
36bits Sharp LQ150X1DG11
The display options need to be setup manually from BIOS. The BIOS
“Standard CMOS” Setup will allow you to choose display resolution either
640X480 or 800X600.
14
•CN7: LCD Interface Connector – support up to 36 bit LCD. For
better display quality, the length of LCD cable should be shorter
than 45 cm.
PIN NO. Description PIN NO. Description
1 NC 2 P33
3 P34 4 P31
5 P35 6 P32
7 P30 8 P28
9 P29 10 P27
11 P25 12 P26
13 P24 14 P21
15 P23 16 P22
17 P16 18 P20
19 P17 20 P18
21 P19 22 P14
23 P13 24 P12
25 P15 26 P11
27 P7 28 P10
29 FPVCC 30 FPVCC
31 P9 32 P8
33 P4 34 P6
35 P3 36 P5
37 P2 38 P1
39 M 40 P0
41 SHIFT CLOCK 42
ENABKL
43 FPVDD 44 FLM
45 ENAVEE 46 LP
47 GND 48 GND
49 +12V 50 +12V

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3.7 LAN RJ45 Connector (CN9)
The JUKI-6752 built-in RJ45 LAN connector is for 10/100Mbps
Ethernet (82559ER).
•CN9: LAN RJ45 Connector
1 TX+ 5 NC
2 TX- 6 RX-
3 RX+ 7 NC
4 NC 8 NC
3.8 Serial Ports(CN10,CN11)
The JUKI-6752 offers two high speed NS16C550 compatible UARTs
with Read/Receive 16 byte FIFO serial ports.
•CN10 : 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)
•CN11 : Serial Port 14-pin Header( COM2)
Pin No. Description Pin No. Description
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTX
7 DTR 8 RI
9 GND 10 NC
11 RS422/RS485 TX2+ 12 RS422/RS485 TX2-
13 RS422 RX2+ 14 RS422 RX2-
16
Notes:If you want to use the RS485 mode that just connect to TX2-
,TX2+.If you want to use the RS422 mode that connect to TX2-
,TX2+,RX2+,RX2-.
3.9 IrDA Infrared Interface Port (CN12-1~5)
The JUKI-6752 built in a IrDA port which support Serial Infrared (SIR) .
When use the IrDA port have to set SIR model in the BIOS’s
Peripheral Setup’s COM2. Then the normal RS-232 COM2 will be
disabled.
•CN12(PIN 1 ~5): IrDA connector
PIN NO. DISCRPTION
1 VCC
2 N/C
3 IRRX
4 Ground
5 IRTX

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3.10 Reset Switch (CN12-6,7)
You can connect an external switch to reset your computer easily.
•CN12(PIN 6,7): Reset Switch connector
PIN NO. DISCRPTION
6 Reset _In
7 GND
3.11 External / Internal Speaker (CN12-8~11)
The CPU card has its own buzzer. You can also connect to the
External speaker on your chassis.
•CN12(PIN 8~11): Speaker connector
PIN NO. DISCRPTION
8 VCC
9 N/C
10 Buzzer Internal
11 Buzzer External
3.12 Hard Drive LED (CN12-13,14)
You can connect an LED to indicate when an IDE device is in use.
•CN12(PIN 13,14): LED connector
PIN NO. DISCRPTION
13 HDD_LED +
14 HDD_LED -
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3.13 Parallel Port(CN13)
This port is usually connected to a printer, The JUKI-6752 includes an
on-board parallel port, accessed through a 26-pin flat-cable connector
CN13.
•CN13 : Parallel Port Connector(2.0MM)
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 STROBE# 14 AUTO FORM FEED#
2 DATA 0 15 ERROR#
3 DATA 1 16 INITIALIZE
4 DATA 2 17 PRINTER SELECT LN#
5 DATA 3 18 GROUND
6 DATA 4 19 GROUND
7 DATA 5 20 GROUND
8 DATA 6 21 GROUND
9 DATA 7 22 GROUND
10 ACKNOWLEDGE 23 GROUND
11 BUSY 24 GROUND
12 PAPER EMPTY 25 GROUND
13 PRINTER SELECT 26 NC
3.14 Floppy Disk Drive Connector(CN14)
JUKI-6752 board equipped with a 34-pin daisy-chain driver
connector cable.
•CN14 : FDC CONNECTOR (2.0MM)
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 GROUND 2 REDUCE WRITE
3 GROUND 4 N/C
5 N/C 6 DRVDEN1
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#

19
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#
3.15 Keyboard Connector(CN15,CN16)
The JUKI-6752 provides one external keyboard and one PS/2
keyboard & mouse connectors.
•CN15 : 6-pin Mini-DIN Keyboard & Mouse Connector
PIN NO. DESCRIPTION
1 KB DATA
2 MS DATA
3 GND
4 +5V
5 KB CLOCK
6 MS CLOCK
•CN16 : 5-pin external Keyboard Connector
PIN NO. DESCRIPTION
1 KB CLOCK
2 KB DATA
3 N/C
4 GND
5 +5V
20
3.16 External Power Connector(CN18)
The JUKI-6752 has an on-board external power connector CN18. You
can connect power directly to the CPU board.
•CN18: External Power Connector
PIN NO. DESCRIPTION
1 +12V
2 GROUND
3 GROUND
4 +5V
3.17 Fan Connector (FAN1)
The JUKI-6752 provides a CPU cooling fan connector. This
connector can supply 5V/500mA to the cooling fan.
•FAN1 : CPU Fan Connector
PIN NO. DESCRIPTION
1 +5V
2 GND

21
4
AWARD BIOS Setup
The JUKI-6752 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 AWARD PCI/ISA BIOS Setup program, press <Del> key.
The following screen will be displayed at this time.
22
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.

23
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,
1. Use the Auto setting for detection during boot up.
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.
LCD&CRT: This field may appear as an alternative to the video
Field. Select your video display device.
LCD: Liquid Crystal Display
24
CRT: Auxiliary monitor. When you want to use CRT only, please
select this option. The CRT will have good screen.
Both: Display on both device. When you want to use both display,
please select this option.
Panel: This field have eight option that have
1024x768 DSTN,
640X480 MONO,
640X480 DSTN ,
800X600 DSTN ,
640X480 TFT(12bits),
640X480 TFT(18bits),
1024X768 TFT,
800X600 TFT.
Please refer to page 13 .
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.

25
4.3 BIOS Features Setup
This BIOS Features Setup is designed for customer‘s tuning best
performance of the JUKI-6752 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.
26
4.4 Chipset Features Setup
This setup functions are almost working for ChipSet(Intel
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.

27
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 temperature sensor near the 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 Temperature, Vcore voltage, Vio
voltage,+5V,-5V,+12V,and –12V status.You can see the
temperature of the CPU but you must supptort the –5V ,-12V.
28
4.5 Integrated Peripherals
This setup is almost working for Multi-I/O Chip(W83977TF-AW ).
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.

29
4.6 Power Management Setup
Power Management Setup help user handles the JUKI-6752
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
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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”

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4.7 PNP/PCI Configuration
The PNP/PCI Configuration help user handles the JUKI-6752
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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Appendix A. Watch-Dog Timer
The WatchDog Timer is a device to ensure that standalone systems can
always recover from abnormal conditions that cause the system to crash.
These conditions may result from an external EMI or a software bug. When
the system stops working, hardware on the board will perform hardware
reset (cold boot) to bring the system back to a known state.
Three I/O ports control the operation of WatchDog Timer.
443 (hex) Write Set WatchDog Time period
443 (hex) Read Enable the refresh the WatchDog Timer.
043/843 (hex) Read Disable the WatchDog Timer.
Prior to enable the WatchDog Timer, user has to set the time-out period.
The resolution of the timer is 1 second and the range of the timer is from 1
sec to 255 sec. You need to send the time-out value to the I/O port – 443H,
and then enable it by reading data from the same I/O port – 443H. This will
activate the timer that will eventually time out and reset the CPU board. To
ensure that this reset condition won’t occur, the WatchDog Timer must be
periodically refreshed by reading the same I/O port 443H. This must be
done within the time-out period that is set by the software, please refer to
the example program. Finally, we have to disable the WatchDog timer by
reading the I/O port -- 843H or 043H. Otherwise the system could reset
unconditionally.
A tolerance of at least 5% must be maintained to avoid unknown routines in 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.

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Example assembly program:
TIMER_PORT = 443H
TIMER_START = 443H
TIMER_STOP = 843H
;;INITIAL TIMER COUNTER
MOV DX, TIMER_PORT
MOV AL, 8 ;;8 seconds
OUT DX, AL
MOV DX, TIMER_START
IN AL, DX. ;;START COUNTER
W_LOOP:
MOV DX, TIMER_STOP
IN AL, DX
MOV DX, TIMER_START
IN AL, DX ;;RESTART COUNTER
;;ADD YOUR APPLICATION HERE
CMP EXIT_AP, 0
JNE W_LOOP
MOV DX, TIMER_STOP
IN AL, DX
;;EXIT AP
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Appendix B. I/O Address Map
B.1 System I/O Address Map
I/O Address Map Description
000-01F DMA Controller #1
020-021 Interrupt Controller # 1, Master
022-023 Chipset address
040-05F System Timer
060-06F Standard 101/102 keyboard Controller
070-07F Real time Clock, NMI Controller
080-0BF DMA Page Register
0A0-0BF Interrupt Controller # 2
0C0-0DF DMA Controller # 2
0F0-0F0 Clear Math Coprocessor Busy
0F1-0F1 Reset Math Coprocessor
0F8-OFF Math Coprocessor
1F0-1F8 VIR BUS Master PCI IDE Controller
200-207 Game I/O
278-27F Reserved
2F8-2FF Serial Port 2
378-37F Parallel Printer Port 1
3B0-3DF Cyrix Graphic Adapter
3F0-3F7 Floppy Disk Controller
3F8-3FF Serial Port 1
443 Watch dog timer enable
043/843 Watch dog timer disable

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B.2 DMA channel assignments
Channel Function
0 Available
1 Audio*
2 Floppy disk (8-bit transfer)
3 Parallel**
4 Cascade for DMA controller 1
5 Audio*
6 Available
7 Available
**parallel port DMA default setting: DMA 3
parallel port DMA select: DMA 1.3
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B.3 Interrupt assignments
Interrupt # Interrupt source
NMI Parity error detected
IRQ 0 System timer
IRQ 1 Keyboard
IRQ 2 Interrupt from controller 2 (cascade)
IRQ 8 Real-time clock
IRQ 9 Available
IRQ 10 Available
IRQ 11 Available
IRQ 12 PS/2 mouse
IRQ 13 Numeric data processor
IRQ 14 Fixed disk controller
IRQ 15 USB controller
IRQ 3 Available
IRQ 4 Serial communication port 1
IRQ 5 Audio*
IRQ 6 Diskette controller (FDC)
IRQ 7 Parallel port 1 (print port)
* Audio default setting: IRQ5
Ethernet IRQ is automatic set by the system
B.4 1st MB memory map
Address Description
F000h-FFFFh System ROM
D800h-EFFFh Unused
D000h-D7FFh Unused
C000h-C9FFh Expansion ROM*
B800h-BFFFh CGA/EGA/VGA text
B000h-B7FFh Unused
A000h-AFFFh EGA/VGA graphics
0000h-9FFFh Base memory
* Default setting