Unicorp Computer ENDAT-GX201 User manual

ENDAT-GX201 USER’S MANUAL
UNICORN COMPUTER CORP.
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ENDAT-GX201
User’s Manual
Rev. 1A
For GX201 PCB ver. 1C or later
03/02/2007
ENDAT-GX201 USER’S MANUAL
UNICORN COMPUTER CORP.
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Copyright Notice
The content of this manual has been checked for accuracy. The manufacturer
assumes no responsibility for any inaccuracies that may be contained in this
manual. The manufacturer reserves the right to make improvements or
modification to this document and/or the product at any time without prior
notice. No part of this document may be reproduced, transmitted, photocopied or
translated into any language, in any form or by any means, electronic, mechanical,
magnetic, optical or chemical, without the prior written permission of the
manufacturer.
AMD is registered trademark ofAMD Technology Incorporation
GEODE and GEODE GX is registered trademark of AMD Technology Incorporation
Realtek is registered trademark of Realtek Technologies Inc.
Multiscan is a trademark of Sony Corp ofAmerica
IBM, EGA, VGA, PC/XT, PC/AT, OS/2 and PS/2 are registered trademarks of
International Business Machines Corporation
Intel is a registered trademark of Intel Corporation
Plug and Play is registered trademarks of Intel Corporation
Microsoft, Windows and MS-DOS are trademarks of Microsoft Corporation
AMI is a trademark of American Megatrends Inc.
PCI is a registered trademark of PCI Special Interest Group
Other product names mentioned herein are used for identification purpose only and
may be trademarks and/or registered trademarks of their respective companies.
Installation Notice
The manufacturer recommends using a grounded plug to ensure proper
motherboard operation. Care should be used in proper conjunctionwith a grounded
power receptacle to avoid possible electrical shock. All integrated circuits on this
motherboard are sensitive to static electricity. To avoid damaging components from
electrostatic discharge, please do not remove the board from the anti-static packing
before discharging any static electricity to your body, by wearing a wrist-grounding
strap. The manufacturer is not responsible for any damage to the motherboard due
to improper operation.

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Specification:
Model ENDAT-GX201
Form Factor Mini-ITX 170 mm x 170 mm (6.69”x6.69”)
CPU AMD GEODE GX 500 processor @ 1.1W power consumption
System Chipset AMD GEODE GX + CS5536
DIMM Socket One DDR DIMM socket supports 200MHz up to 512MB DDR
VGA Adapter Integrated 2D graphics engine by AMD GEODE GX CPU
LCD
Supporting 9, 12, 18, 24bit TFT LCD Panel with TTL interface
18, 24bit LVDS interface (Optional)
LAN Adapter 2 x Realtek 8139D 10/100 Ethernet adapter
IDE Connector One IDE channel support up to 2 EIDE devices (1 x 40-pin + 1 x
44-pin shared), UDMA 33/66/100 mode and BIOS auto-detect
FDD Connector 1 x FDD connector
AC97’Audio Phone Jack + Pin Header
USB Port 4 x USB2.0 onboard
I/O Port 4 x COMs w/+5V, +12V selector /1 x Parallel port
RS-422/485 Optional via COM2
Digital IO 8 bit bi-directional I/O ports (standard on-board support) + 8 bit input
and 8 bit output while the IT8888 present (optional)
WDT programmable 1~255 seconds / minutes
Expansion Slot 1 x 120Pin PCI connector
1 x PC104 (Optional)
1 x One mini-PCI socket onboard (Optional)
Power Supply ATX power support
ENDAT-GX201 USER’S MANUAL
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TABLE OF CONTENTS
CHAPTER 1. INTRODUCTION.......................................................6
1-1. FEATURES ................................................................................................7
1-2. UNPACKING..............................................................................................9
1-3. ELECTROSTATIC DISCHARGE PRECAUTIONS....................................9
1-4. MOTHERBOARD LAYOUT......................................................................10
CHAPTER 2. SETTING UP THE MOTHERBOARD..................... 11
2-1. JUMPERS AND CONNECTORS............................................................. 11
2-2. INSTALLING MEMORY............................................................................24
2-3. SHARED VGA MEMORY.........................................................................24
2-4. IRQs MAPPING........................................................................................24
2-5. WATCH DOG TIMER ...............................................................................25
2-6. DIGITAL I/O…………………………………………………………………….28
2-7. PC104………………………………….……………………………………….31
CHAPTER 3. AWARD BIOS SETUP............................................33
3-1. STANDARD COMS FEATURES..............................................................34
3-2. ADVANCED BIOS FEATURES ................................................................35
3-3. ADVANCED CHIPSET FEATURES .........................................................36
3-4. INTEGRATED PERIPHERALS ................................................................38
3-5. POWER MANAGEMENT SETUP............................................................42
3-6. PnP/PCI CONFIGURATIONS..................................................................42
3-7. PC HEALTH STATUS...............................................................................43

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CHPATER 4. VGA, LCD AND DRIVERS......................................44
4-1. VGA FEATURE.........................................................................................44
4-2. LCD FLAT PANEL ....................................................................................45
4-3. DRIVER UTILITY INSTALLATION GUIDE...............................................49
CHPATER 5. LAN ADAPTER.......................................................50
5-1. FEATURES...............................................................................................50
5-2. UTP CABLE/RJ-45 JACK DEFINITION...................................................51
5-3. CONNECTING 100BASE-TX FAST ETHERNET NETWORK.................52
5-4. REMOTE BOOT ROM FUNCTION..........................................................52
5-5. DIAGNOSTIC PROGRAM (RSET8139) …..............................................52
APPENDIX A: FLASH MEMORY UTILITY...................................54
APPENDIX B: CONNECTOR PIN ASSIGNMENT........................55
APPENDIX C: LIMITED WARRANTY ..........................................64
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Chapter 1. Introduction
To rise to the challenges of the system heating issues and more and more demands of
diminutive embedded system in diverse applications, we designed and made ENDAT-GX201
system board as an ultimate solution integrated with AMD GEODE GX technology CPU.
ENDAT-GX201 is not only the ideal solution for Hi-End POS systems, but also could be well
adapted to various applications such as kiosks, networking systems, controlling terminals
and other embedded systems with FANLESS environment.
ENDAT-GX201 is designed with AMD GEODE GX 500 and the CS5536. One DDR
DIMM socket supports 200MHz up to 512MB DDR. The DRAM controller supports
standard DDR200 Synchronous DRAM (DDR SDRAM).
ENDAT-GX201 integrates 2D graphics controller which enables ENDAT-GX201 to
support TFT LCD panel or CRT/LCD monitor (not support LCD + CRT operate
mode).
ENDAT-GX201 supports TFT LCD panels through theTTLor LVDS interface, which
includes 9-bit, 12-bit, 18-bit, and 24-bit of TTL or LVDS interfaces.
Resolutions up to 1280 x 1024 for TFT LCD or 1600 x 1200 for CRT/LCD monitor.
ENDAT-GX201 has one standard PCI slot as well as a miniPCI socket support
standard PCI adapter with PCI 2.2 compliant; moreover, it has PC104 module
connector reserved as optional feature.
The ideal solution of ENDAT-GX201
-POS system
-KIOSK
-Interactive system
-Airport Terminal Controller
-Industrial controller
-Digital entertainment
-Embedded system equipment

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1-1. Features
Basic Feature:
zA cost effective platform with x86 architecture.
zEmbedded AMD GEODE GX 500 processor @ 1.1W power
consumption to offer a totally FANLESS solution.
zOne DDR DIMM socket supports 200MHz up to 512MB DDR.
zAn internal 2D graphics controller with 4/6/8/12/16 MB frame buffer
share with system memory
zIntegrated 2D graphics controller resolutions up to 1600 x 1200 for
CRT/LCD monitor.
zDirect Flat panel interface supports 24-bit TFT/LVDS LCD panel, the
resolution up to 1280 x 1024 x 24.
z1-channel LVDS interface on-board by optional feature.
z8 bit bi-directional I/O ports (8 bit input and 8 bit output) if IT8888
(PC104 feature) presents.
zStandard PCI slot supports standard PCI adapter with PCI 2.2
compliant. A miniPCI socket and PC104 module connector by
optional features.
zAC97’Audio with 1.2W amplifier built-in.
Software Support
zDrivers for major embedded operating systems: Windows XP,
Windows XP embedded and Windows CE 5.0.
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Ordering information:
1. ENDAT-GX201: Standard version.
2. ENDAT-GX201-P: Support 1 PC104 module connector.
3. ENDAT-GX201-M: Support 1 miniPCI socket.
4. ENDAT-GX201-L: Support 1 channel LVDS with 18, or 24-bit data
formats.
Note:
1. The standard version of ENDAT-GX201 will not equip any optional feature
listed above.
2. Both PC104 (ENDAT-GX201-P) and miniPCI (ENDAT-GX201-M) features
require a MOQ amount for production in UNICORN. Please contact the sales
department for more detail.

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1-2. Unpacking
The motherboard comes securely packaged in a sturdy cardboard shipping carton. In
addition to the User's Manual, the motherboard package includes the following items:
• ENDAT-GX201 System Board
• HDD/FDD/Serial port Cables
• LCD cable (Optional)
• IDE Driver includes: Drivers for Windows NT 3.x/4.x, Windows 95, 98, ME, 2000,
XP, Novell Netware and AMI / AWARD FLASH ROM utilities.
• Driver utilities for on-board VGA drivers, LAN adapter
If any of these items are missing or damage, please contact the dealer from whom you
purchase the motherboard. Save the shipping material and carton in the event that you want
to ship or store the board in the future.
Note: Leave the motherboard in its original package until you are ready to install it!
1-3. Electrostatic Discharge Precautions
Make sure you properly ground yourself before handling the motherboard, or other system
components. Electrostatic discharge can easily damage the components. Note: You must
take special precaution when handling the motherboard in dry or air-conditioned
environments.
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1-4. MOTHERBOARD LAYOUT

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Chapter 2. Setting up the Motherboard
2-1. Jumpers and Connectors
Connectors Overview:
Function Jumpers/Connectors
ATX Power Connector ATX1
DDR SDRAM Socket DIMM1
LAN/USB Connector LAN1, LAN2
CRT Output Connector COMVGA (lower side)
CRT Box Header VGABH1
COM1 Connector CN6 (upper side)
COM2 Connector CN6 (lower side)
COM3 Connector COMVGA (upper side)
COM3 Box Header CN8 (shared)
COM4 Box Header CN4
LINE IN/SPEAKER OUT connector LIN-SPK1
LPT1 Box Header LPT1
FDD Connector FDD1
IDE Connector IDE1, IDE1B (shared IDE1)
PC104 Connector CN1 + CN3
MINI-PCI Socket SLOT1
PCI Slot PCI1
LCD Panel Connector TTL1
LVDS Panel Connector LVDS1
USB Port Header JUSB1
Cooling Fan Connector FAN1, FAN2
PS/2 MS/KB Pin Header CN5
IR Pin Header IRDA1
SM Bus Header SMB1
DIGITAL I/O Pin Header (w/ buffer) JP7
DIGITAL I/O Pin Header (w/o buffer) UBIO1
MIC IN Header CN10
LINE IN Header CN9
LINE OUT Header CN11
CD In Header CN12
SPEAKER OUT Header CN13
Reserved for factory ISP1
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Jumpers Overview:
Function Jumpers/Connectors
Clear CMOS JBAT1
LCD Voltage Selector JP6
LVDS Trigger Edge Selector JP7
Header for Case Panel JP5
HDD active LED JP5: Pin 1(-), Pin 2(+)
External Speaker JP5: Pin 3, Pin 6
Buzzer On/Off JP5: Pin 4, Pin 5
External/Internal power good JP5: Pin 7, Pin 8 (external)
JP5: Pin 8, Pin 9 (internal)
Hardware Reset Switch JP5: Pin 10, Pin 11
Power LED JP5: Pin 12(+), Pin 13(-)
WDT Function Enable/Disable JP5: Pin 14, Pin 15
ATX Power Supply On/Off Switch JP5: Pin 16, Pin 17
COM Port Voltage Selector JP2 (COM3/4), JP4 (COM1/2)
RS232 / 422/ 485 Selector for COM2 JP1 & JP3
DIGITAL I/O Voltage Selector (JP7 only) J1
LCD / CRT selector JP8
Restore on AC power loss JP9
Please double-check the insertion and orientation of the LCD cable before applying power.
Improper installation will result in permanent damage LCD panel.

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Part 1: Onboard Jumpers
JBAT1: CMOS Data Clear (1x3 with 2.0mm)
Pin 1-2 * Normal
Pin 2-3 Close for clear CMOS
JP8: LCD / CRT selector (1x3 with 2.0mm)
Pin 1-2 LCD
Pin 2-3* CRT
JP6: LCD Voltage Selector (2x3 with 2.0mm)
Pin 1-2 * +3.3V
Pin 3-4 +5V
Pin 5-6 +12V
Caution: Improper setting will damage LCD panel.
JP7: LVDS Trigger Edge Selector (1x3 with 2.0mm)
Pin 1-2 * Rising edge
Pin 2-3 Falling edge
JP5: Pin Header for Case Panel (1x17 with 2.54mm)
Pin No. Function
1(-), 2(+) HDD active LED
3,6 External Speaker
4,5 * Buzzer On/Off
7,8 External power good
8,9 * Internal power good
10,11 Hardware Reset Switch
12(+), 13(-) Power LED
14,15 Close: Enable WDT function
16,17 ATX Power On/Off
JP1, JP3: RS232 / 422 / 485 Selectors for COM2 (2.0mm)
TYPE JP1 (3x4 with 2mm) JP3 (2x7 with 2mm)
RS-232 * 1-2, 4-5, 7-8, 10-11 1-2
RS-422/485 2-3, 5-6, 8-9, 11-12 3-4, 5-6
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JP2, JP4: COM Port Voltage Selector (2x6 with 2.0mm)
Voltage +12V(DC) R.I. * +5V(DC)
COM1 (JP4) 1-2 3-4 5-6
COM2 (JP4) 7-8 9-10 11-12
COM3 (JP2) 1-2 3-4 5-6
COM4 (JP2) 7-8 9-10 11-12
J1: DIGITAL Output Voltage Selector (CN7 only, 1x3 with 2.0mm)
Pin 1-2 * +3.3V
Pin 2-3 +5V
JP9: Restore on AC power loss (1x2 with 2.54mm)
Close Enable
Open* Disable
When JP9 was been closed, the system power will turn on automatically when AC
power apply.

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Part 2: Onboard connectors
VGABH1: CRT Box Header Connector (2x8 with 2.54mm)
Pin No. Description Pin No. Description
1 RED 9 N.C / +5V
2 GREEN 10 GND
3 BLUE 11 N.C.
4 N.C. 12 DDC DAT
5 GND 13 H-Sync
6 GND 14 V-Sync
7 GND 15 DDC CLK
8 GND
CN8/4: Box Header Type Connector for COM3/4 port (2x5 with 2.54mm)
Pin No. Function Pin No. Function
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 GND 10 N.C.
LPT1: Printer Port Box Header (2x13 with 2.54mm)
Pin No. Description Pin No. Description
1 STB# 10 ACK#
2 PD0 11 BUSY
3 PD1 12 PE
4 PD2 13 SLCT
5 PD3 14 AFD#
6 PD4 15 ERR#
7 PD5 16 INIT#
8 PD6 17 SLIN#
9 PD7 18-25 GND
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FDD1: FDD Box Header (2x17 with 2.54mm)
Pin No. Description Pin No. Description
1,3,5,7 GND 14 DSA#
9,11,13 GND 16 MOB#
15,17,19 GND 18 DIR
21,23,25 GND 20 STEP#
27,29,31 GND 22 WD#
33 GND 24 WE#
2 RWC# 26 TRAK0
4,6 N.C 28 WP#
8 INDEX# 30 RDATA#
10 MOA# 32 HEAD#
12 DSB# 34 DSKCHG#

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IDE1 Box Header (2x20 with 2.54mm)
Pin No. Description Pin No. Description
1 IDE Reset# 2 GND
3 IDE data7 4 IDE data8
5 IDE data6 6 IDE data9
7 IDE data5 8 IDE data10
9 IDE data4 10 IDE data11
11 IDE data3 12 IDE data12
13 IDE data2 14 IDE data13
15 IDE data1 16 IDE data14
17 IDE data0 18 IDE data15
19 GND 20 N.C.
21 IDE REQ 22 GND
23 IDE IOW# 24 GND
25 IDE IOR# 26 GND
27 IDE Ready 28 GND
29 IDE ACK# 30 GND
31 IDE IRQ 32 N.C.
33 IDE A1 34 P66DET
35 IDE A0 36 IDE A2
37 IDECS1# 38 IDESC3#
39 HDLED# 40 GND
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IDE1B: Slim IDE1 Connector (2x22 with 2.0mm)
Pin No. Description Pin No. Description
1 IDE Reset# 2 GND
3 IDE data7 4 IDE data8
5 IDE data6 6 IDE data9
7 IDE data5 8 IDE data10
9 IDE data4 10 IDE data11
11 IDE data3 12 IDE data12
13 IDE data2 14 IDE data13
15 IDE data1 16 IDE data14
17 IDE data0 18 IDE data15
19 GND 20 N.C.
21 IDE REQ 22 GND
23 IDE IOW# 24 GND
25 IDE IOR# 26 GND
27 IDE Ready 28 GND
29 IDE ACK# 30 GND
31 IDE IRQ 32 N.C.
33 IDE A1 34 P66DET
35 IDE A0 36 IDE A2
37 IDECS1# 38 IDESC3#
39 HDLED# 40 GND
41 VCC (+5V) 42 VCC (+5V)
43 GND 44 N.C.

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TTL1: TTL LCD Panel Box Header (2x22 with 2.0mm)
LVDS1: LVDS LCD Pin Header (2x8 with 2.54mm)
Pin No. Description Pin No. Description
1 Y0- 2 Y2-
3 Y0+ 4 Y2+
5 Y1- 6 LCD-PWR
7 GND 8 Y3-
9 Y1+ 10 Y3
11 CK- 12 LCD-PWR
13 CK+ 14 ENBKLT
15 VBL (+12V) 16 GND
Please make sure the Pin 1 location before inserting the LCD connector.
Pin No. Signal Pin No. Signal
1 VBL (+12V) 2 VBL (+12V)
3 GND 4 GND
5 LCD-PWR 6 LCD-PWR
7 ENBKLT 8 GND
9 B0 10 B1
11 B2 12 B3
13 B4 14 B5
15 B6 16 B7
17 G0 18 G1
19 G2 20 G3
21 G4 22 G5
23 G6 24 G7
25 R0 26 R1
27 R2 28 R3
29 R4 30 R5
31 R6 32 R7
33 GND 34 GND
35 CLK 36 V-SYNC
37 DE 38 H-SYNC
39 GND 40 LCD-PWR
41 LCD-PWR 42 KEY
43 LCD-PWR 44 LCD-PWR
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JUSB1: Pin Header for USB port (2x5 with 2.54mm)
Pin No. Function Pin No. Function
1 USB_VCC 2 USB_VCC
3 USBD2- 4 USBD3-
5 USBD2+ 6 USBD3+
7 USB_GND 8 USB_GND
9 USB_GND 10 USB_GND
FAN1, FAN2: Cooling Fan Connector
Pin No. Function
1 GND
2 +12V
3 Sensor Pin
CN5: PS/2 Keyboard / Mouse Pin Header (2x5 with 2.0mm)
Pin No. Signal (KB) Pin No. Signal (MS)
1 KB Data 2 MS Data
3 KEY 4 KEY
5 GND 6 GND
7 +5V(DC) 8 +5V(DC)
9 KB_CLK 10 MS_CLK
IRDA1: IR Pin Header (1x5 with 2.54mm)
Pin No. Function Pin No. Function
1 +5V 4 GND
2 N.C 5 IRTX
3 IRRX
SMB1: SM Bus Pin Header (1x4 with 2.54mm)
Pin No. Function Pin No. Function
1 SMBCK 3 +3.3V
2 SMBDT 4 GND

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CN7: DIGITAL I/O Pin Header (2x13 with 2.0mm)
Pin No. Function Pin No. Function
1 DIO-O0 2 DIO-O4
3 DIO-O1 4 DIO-O5
5 DIO-O2 6 DIO-O6
7 DIO-O3 8 DIO-O7
9 GND 10 +5V
11 +12V 12 +3.3V
13 GND 14 KEY
15 +3.3V 16 +12V
17 +5V 18 GND
19 DIO-I0 20 DIO-I4
21 DIO-I1 22 DIO-I5
23 DIO-I2 24 DIO-I6
25 DIO-I3 26 DIO-I7
Note: Only available when PC104 function present
UBIO1: DIGITAL I/O (w/o buffer) Pin Header (2x6 with 2.0mm)
Pin No. Function Pin No. Function
1 +3.3V 2 GND
3 GPIO0 4 GPIO4
5 GPIO1 6 GPIO5
7 GPIO2 8 GPIO6
9 GPIO3 10 GPIO7
11 GND 12 +3.3V
CN10: MIC IN (1x4 with 2.54mm)
Pin No. Function Pin No. Function
1 MIC POWER 2 GND
3 GND 4 MIC IN
CN9: LINE IN (1x4 with 2.54mm)
Pin No. Function Pin No. Function
1 LINE IN-L 2 GND
3 GND 4 LINE IN-R
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CN11: LINE OUT (1x4 with 2.54mm)
Pin No. Function Pin No. Function
1 LINE OUT-R 2 GND
3 GND 4 LINE OUT-L
CN12: CD IN Pin Header (1x4 with 2.54mm)
Pin No. Function Pin No. Function
1 CD IN-R 2 GND
3 GND 4 CD IN-L
CN13: SPEAKER OUT (1x4 with 2.54mm)
Pin No. Function Pin No. Function
1 SPEAKER OUT-R 2 GND
3 GND 4 SPEAKER OUT-L
D-SUB Type Connector for COM2 port (RS-232)
Pin No. Description Pin No. Description
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 GND

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D-SUB Type Connector for COM2 port (RS-422Æ4 Wire)
Pin No. Function Pin No. Function
1 –TXD 6 NA
2 +RXD 7 NA
3 +TXD 8 NA
4 NA 9 –RXD
5 NA
D-SUB Type Connector for COM2 port (RS-485Æ2 Wire)
Pin No. Function Pin No. Function
1 Data – 6 NA
2 NA 7 NA
3 Data + 8 NA
4 NA 9 NA
5 NA
ATXPWR: ATX Power connector
ATX
3.3V 11 1 3.3V
–12V 12 2 3.3V
GND 13 3 GND
PS ON 14 4 +5V
GND 15 5 GND
GND 16 6 +5V
GND 17 7 GND
–5V 18 8 POWER OK
+5V 19 9 5V SB
+5V 20 10 +12V
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2-2. Installing Memory
The ENDAT-GX201 CPU board offers one 184pin DDR DIMM socket supporting up to
512MB of memory. The DDR memory can be DDR200, DDR266, DDR333 or DDR400.
2-3. Shared VGA Memory
The ENDAT-GX201 is using built-in graphic controller with Unified Memory Architecture
(UMA) -
up to 16MB of system memory. The amount of video memory on motherboard
determines the number of colors and the video graphic resolution.
2-4. IRQs Mapping
The IRQ number is automatically assigned to PCI expansion cards after those used by
onboard device. To install a PCI riser card, you need to set the correct "ADSEL" and "INT"
(interrupt) assignment.
IRQ Status Assignment
0 Occupied Timer
1 Occupied Keyboard
2 Occupied Second 8259
3 Occupied COM2/COM4 shared
4 Occupied COM1/COM3 shared
5 Occupied LPT1
6 Occupied Floppy Disk
7 Free Any
8 Occupied RTC
9 Shareable ACPI controller
10 Free Any
11 Free Any
12 Free When PS/2 mouse absent
13 Occupied Coprocessor
14 Free When IDE device absent
15 Occupied Reserved

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2-5. Watch Dog Timer
zH/W jumper:
JP5: Pin 14, Pin 15, WDT Function Enable (close) Disable (open).
zS/W Port Address: Base address (0x800).
Offset: 0x47 (GPIO register)
Bit Function 00 01 10 11
1..0 Reserved
3..2 Function selector Reserved WDT
7..4 Reserved
Offset: 0x65 (Time unit register)
Bit. Function 0 1
6..0 Reserved
7 Minute/Second Minute Second
Offset: 0x66 (Time out value register)
Bit. 0x00~0xff
7..0 1~255 minutes/seconds (0x00 is disable WDT)
Offset: 0x67 (Configuration register)
Bit Function 0 1
0 Reserved
1 Keyboard enable WDT ignore KB interrupt WDT reset by KB interrupt
2 Mouse enable WDT ignore MS interrupt WDT reset by MS interrupt
7..3 Reserved
Offset: 0x68 (Control register)
Bit Function 0 1
0 WDT status (read only) WDT continue WDT time out occurred
1 Reserved
2 Force time out Keep status Force time out
7..3 Reserved
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Sample code (using TurboC/C++ 3.0):
#include <dos.h>
#include <stdio.h>
#include <conio.h>
#include <iostream.h>
#include <process.h>
#define RUNTIME_REG_BASE 0x800
#define WDT_TIME_OUT_OFFSET 0x65 //Bit7=0(default) mean minute, bit7=1 mean second.
#define WDT_VAL_OFFSET 0x66 //Time out value (1~255), 0 (default) is mean disable.
#define WDT_CFG_OFFSET 0x67 //Bit1=1 (default) will clear WDT flag when KB interrupt,bit2=1 is MOUSE
interrupt.
#define WDT_CTRL_OFFSET 0x68 //Bit0=1 mean time out event occured (read only and it'll be clear
automatically),bit2=1 will force WDT event.
#define WDT_GP60_TYPE_OFFSET 0x47 //Bit3-2=11 mean WDT function, bit3-2=00 mean GPIO function.
Bit0=1 mean input, bit0=0 mean output or WDT.
void title(void);
void init(unsigned char,unsigned char);
unsigned char dec2hex(unsigned int);
void main()
{
unsigned char val,val1;
unsigned int val2;
clrscr();
title();
cout<<"\n Now testing the WDT function on GX platform!\n";
cout<<"Please select the time unit is minute (M) or second (S):";
cin>>val;
if ((val=='m')||(val=='M'))
{
val=0;
}
else
{
val=1;
}
cout<<"Please key in how many minutes/seconds for reset system(1~255):";
cin>>val2;
val1=dec2hex(val2);
init(val,val1);
cout<<"\nReady to start WDT count down ('s' to start or 'q' to quit)?";
cin>>val;
if((val=='q')||(val=='Q'))
{
exit(0);
}
else if ((val=='s')||(val=='S'))
{
outportb(RUNTIME_REG_BASE+WDT_GP60_TYPE_OFFSET,0x0c); //Enable WDT
and starting count down.
}
exit(0);
}

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void init(unsigned char flag,unsigned char time)
{
unsigned char tmp0;
outportb(RUNTIME_REG_BASE+WDT_GP60_TYPE_OFFSET,0x0d); //Disable WDT function
(set it as input).
tmp0=inportb(RUNTIME_REG_BASE+WDT_TIME_OUT_OFFSET);
if (flag)
{
tmp0=tmp0|0x80; //Set time unit is second.
}
else
{
tmp0=tmp0&0x7f; //Set time unit is minute.
}
outportb(RUNTIME_REG_BASE+WDT_TIME_OUT_OFFSET,tmp0);
outportb(RUNTIME_REG_BASE+WDT_VAL_OFFSET,time); //Set time out vlaue.
tmp0=inportb(RUNTIME_REG_BASE+WDT_CFG_OFFSET);
tmp0=tmp0|0x06;
outportb(RUNTIME_REG_BASE+WDT_CFG_OFFSET,tmp0); //Set WDT interrupt by KB and
MOUSE.
}
void title(void)
{
cout<<"\nUNICORN COMPUTER Corp,. 2006/09/14(ver:0.1 beta)";
cout<<"\nDesigned by Robert Liou for testing WDT on GX2v1!\n\n";
}
unsigned char dec2hex(unsigned int number)
{
unsigned char tmp_num0,tmp_num1;
if(number>=255)
{
tmp_num0=number&0xff;
}
else
{
tmp_num1=(number/16)&0x0f;
tmp_num1=tmp_num1<<4;
tmp_num0=number%16;
tmp_num0=tmp_num0|tmp_num1;
}
return(tmp_num0);
}
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2-6. Digital I/O
z16 Bits Digital I/O (CN7)
I/O type: Unidirectional for 8 bits input and 8 bits output with buffer
Pin definition:
CN7: DIGITAL I/O Pin Header (2x13 with 2.0mm)
Pin No. H/W S/W Pin No. H/W S/W
1 OUTPUT-0 BIT0 2 OUTPUT-4 BIT4
3 OUTPUT-1 BIT1 4 OUTPUT-5 BIT5
5 OUTPUT-2 BIT2 6 OUTPUT-6 BIT6
7 OUTPUT-3 BIT3 8 OUTPUT-7 BIT7
9 GND N/A 10 +5V N/A
11 +12V N/A 12 +3.3V N/A
13 GND N/A 14 KEY N/A
15 +3.3V N/A 16 +12V N/A
17 +5V N/A 18 GND N/A
19 INPUT-0 BIT0 20 INPUT-4 BIT4
21 INPUT-1 BIT1 22 INPUT-5 BIT5
23 INPUT-2 BIT2 24 INPUT-6 BIT6
25 INPUT-3 BIT3 26 INPUT-7 BIT7
Operating condition: Due to this feature is addressing from ISAbus!
So, the ISA Bridge (IT8888G) must present on system for this feature support.
H/W jumper:
J1: DIGITAL Output Voltage Selector (CN7 only, 1x3 with 2.0mm)
Pin 1-2 * +3.3V
Pin 3-4 +5V
S/W Port Address: Output (0x300), Input (0x301).
Sample code (using TurboC/C++ 3.0):
#define WRITE_OUT 0x300 //8bit I/O output
#define READ_IN 0x301 //8bit I/O input
unsigned char val=0;
val=inportb(READ_IN); //Read 8 bits data from DIO port
outportb(WRITE_OUT,val); //Write 8 bits data to DIO port

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z8 Bits Digital I/O (UBIO1)
I/O type: bidirectional for 8 bits I/O without buffer
Pin definition:
UBIO1: DIGITAL I/O (w/o buffer) Pin Header (2x6 with 2.0mm)
Pin No. Function Pin No. Function
1 +3.3V 2 GND
3 GPIO0 4 GPIO4
5 GPIO1 6 GPIO5
7 GPIO2 8 GPIO6
9 GPIO3 10 GPIO7
11 GND 12 +3.3V
Operating condition: None, all of the standard types of M/B support this feature.
This feature is sourcing from GPIO pin of super I/O chip (SCH3114 by SMSC).
Please refer to the datasheet of SMSC for detail describe of register or the sample
code of below.
S/W Port address: Base address (0x800).
Register offset:
Pin No. Control Data Pin No. Control Data
GPIO0 0x3A 0x4d/bit7 GPIO4 0x6e 0x85/bit 4
GPIO1 0x39 0x4d/bit 6 GPIO5 0x6f 0x85/ bit 5
GPIO2 0x48 0x50/bit 2 GPIO6 0x72 0x85/ bit 6
GPIO3 0x33 0x4d/bit 1 GPIO7 0x73 0x85/ bit 7
Control register configuration (GPIO0 to GPIO3):
Pin No. Function 0 1
BIT0 Input/Output Output Input
BIT1 Polarity No invert Invert
BIT2 GPIO/other function GPIO Other function
BIT [7..3] Reserved
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Control register configuration (GPIO4 to GPIO7):
Pin No. Function 0 1
BIT0 Input/Output Output Input
BIT1 Polarity No invert Invert
BIT2 GPIO/other function Other function GPIO
BIT [7..3] Reserved
Sample code (using TurboC/C++ 3.0):
#define BASE_ADDR 0x800 //Base address
#define GPIO0_IO_CTRL 0x3a //Control offset of GPIO0
#define GPIO0_DATA 0x4d //Data port of GPIO0
#define GPIO0_MASK 0x80 //Data mask of GPIO0
unsigned char tmp;
tmp=inportb(BASE_ADDR+GPIO0_IO_CTRL);
tmp=tmp|0x01; //Set GPIO0 as input
; tmp=tmp&0xfe; //Set GPIO0 as output
outportb(BASE_ADDR+GPIO0_IO_CTRL,tmp);
tmp=inportb(BASE_ADDR+GPIO0_DATA); //Get data from GPIO0
tmp=tmp&GPIO0_MASK; //Clear un-used bit
; outportb(BASE_ADDR+GPIO0_DATA,0x80); //Set GPIO0 as logical “1”
; outportb(BASE_ADDR+GPIO0_DATA,0x00); //Set GPIO0 as logical “0”

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2-8. PC104
zThere have 4 items in “Integrated Peripherals” menu of
BIOS need to defined for PC104
1. IT8888 ISA Decode IO
There have 5 sets (4..0) of decode addresses available in this item:
a). Decode I/O Space [4..0]: Enabled / Disabled
This item needs to set as “Enabled” to change the setting of below (from b to d).
b). Decode I/O Speed [4..0]: Subtractive Speed / Slow Speed / Medium Speed / Fast Speed.
Set decode speed as needs, generally is “Fast Speed”.
c). Decode I/O Addr. [4..0] [15:4]: 0001 to 0fff (HEX number).
Set decodes address according to the interface need.
d). Decode I/O Size [4..0]: 1 / 2 / 4 / 8 / 16 / 32 / 64 /128 Bytes
Set how many size will be used on the interface.
2. IT8888 ISA Decode Memory
There have 4 sets (3..0) of decode addresses available in this item:
a). Decode Memory Space [3..0]: Enabled / Disabled
This item needs to set as “Enabled” to change the setting of below (b to d).
b). Decode Memory Speed [3..0]: Subtractive Speed/Slow Speed/Medium Speed/Fast Speed.
Set decodes speed as needs.
c). Decode Momory Addr. [3..0] [23:12]: 0000 to 0fff (HEX number).
Set decodes address according to the interface need.
d). Decode Momory Size [3..0]: 16K/32K/64K/128K/256K/512K/1M/2M Bytes
Set how many size will be used on the interface.
3. IT8888 DDMA
There have 6 DMA channels available on this item (0/1/2/3/5/6/7), please set one or more DMA channel
as interface needs.
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4. IRQ Resources
Please set the item “Resources Controlled By” as “Manual” from “Auto (ESCD)”, then reserved one or
more interrupt number for interface usage. Available number is: 3/4/5/7/10/11/14/15.
zExample operation (RS-232 card):
Step 1: Setting the IO card jumper to assign the IO port address and IRQ number.
In this case, the port address of jumpers was been set as “3F8/IRQ4 (COM1)” and “2F8/IRQ3 (COM2)”.
Step 2: Press “Del” key to get in the BIOS utility and disable all onboard COM ports, then select the
“Integrated Peripherals” to set the decode address for RS-232 card. In the ”IT8888 ISA Decode IO”,
change these 5 items as follows:
a). Decode I/O Space 0 / 1: Enable.
b). Decode I/O Speed 0 / 1: Fast Speed.
c). Decode I/O Addr. 0 / 1: 03f (COM1) / 02f (COM2).
d). Decode I/O Size 0 / 1: 16 Bytes.
e). Change the item “Resources Controlled By” as “Manual” from “Auto (ESCD)” and change the number
3 and 4 of interrupt as “Legacy ISA” from “PCI/ISA PnP”.
Step 3: Plug the RS-232 card in M/B and turn on the power, the COM1 and COM2 of RS-232 card
should be found in “System configuration table”. Then, continue boot up to WINDOWS system and
connect MODEM or other COM port devices to verify function.

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Chapter 3. AWARD BIOS SETUP
Phoenix – Award BIOS CMOS Setup Utility
> Standard CMOS Features
> Advanced BIOS Features
> Advanced Chipset Features
> Integrated Peripherals
> Power Management Setup
> PnP/PCI Configurations
> PC Health Status
Load Optimized Defaults
Set Password
Save & Exit Setup
Exit Without Saving
Use the BIOS CMOS setup program to modify the system parameters to reflect the
environment installed in your system and to customize the system as desired.
Press the <DEL> key to enter into the BIOS CMOS setup program when you turn
on the power. Settings can be accessed via arrow keys. Press <Enter> to choose
an option to configure the system properly.
In the main menu, press F10 or “SAVE & EXIT SETUP” to save your changes and
reboot the system. Choose “EXIT WITHOUT SAVING” to ignore the changes and
exit the setup procedure. Pressing <ESC> at anywhere during the setup will return
to the main menu.
All of the above CMOS BIOS items require board knowledge on PC/AT system
architecture. Incorrect setup could cause system malfunctions.
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3-1. Standard CMOS Features
The Standard Setup is used for the basic hardware system configuration. The main
function is for Data/Time and Hard Disk Drive settings.
˙Video
Select the type of primary video subsystem.
<Choice: EGA/ VGA, CGA 40, CGA80, MONO>
˙Halt On
Set the system’s response to specific boot errors.
<Choice: All Errors, No Errors, All, But Keyboard,
All, But Diskette, All, But Disk/Key >
IDE Primary Master/Slaver
Item Optimized defaults
IDE HDD Auto-Detection Press Enter
IDE Channel Auto
Access Mode Auto
The specifications of your drive must match with the drive table. The hard disk will
not work properly if you enter incorrect information in this category. Select “Auto”
whenever possible. If you select “Manual”, make sure the information is from your
hard disk vendor or system manufacturer.
Item Optimized defaults
Date (mm:dd:yy)
Time (hh:mm:ss)
IDE Primary Master Press Enter
IDE Primary Slave Press Enter
Driver A 1.44M, 3.5 in.
Video EGA/VGA
Halt On All , But Keyboard

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3-2. Advanced BIOS Features
This section allows you configuring your system for basic operation. You have the
opportunity to select the system’s default speed, boot-up priority, keyboard
operation and security.
Item Optimized defaults
Virus Warning Disabled
CPU Internal Cache Enabled
First Boot Device Floppy
Second Boot Device HDD-0
Third Boot Device LS120
Boot Other Device Enabled
Swap Floppy Drive Disabled
Boot Up Floppy Seek Disabled
Boot Up NumLock Status On
Gate A20 Option Fast
Typematic Rate Setting Disabled
Typematic Rate (Chars/Sec) 6
Typematic Delay (Msec) 250
Security Option Setup
OS Select For DRAM > 64MB Non-OS2
HDD S.M.A.R.T. Capability Disabled
Video BIOS Shadow Enabled
C8000-CBFFF Shadow Disabled
CC000-CFFFF Shadow Disabled
D0000-D3FFF Shadow Disabled
D4000-D7FFF Shadow Disabled
D8000-DBFFF Shadow Disabled
DC000-DFFFF Shadow Disabled
Small Logo(EPA) Show Enabled
Cyrix 6x86/MII CPUID Enabled
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3-3. Advanced Chipset Features
This section allows you to configure the system based on the specific features of
the installed chipset. This chipset manages bus speeds and the access to the
system memory resources, such as DRAM and the external cache. It also
coordinates the communications with the PCI bus. It must be stated that these
items should never be altered. The default settings have been chosen because they
provide the best operating conditions for your system. You might consider making
any changes only if you discover that the data has been lost while using your
system.
Item Optimized defaults
Video Memory Size 16M
Flat Panel Configuration Press Enter
Onboard Audio Enabled
Onboard USB1.1 Enabled
Onboard USB2.0 Enabled
˙Video Memory Size
This field is used to select the onboard VGA’s frame buffer size that is shared
from the system memory.
<Choice: Disabled, 4M, 6M,8M,12M,16M>
˙Flat Panel Configuration
˙Flat Panel Type
This field is used to select the type of display to use when the system boot.
<Choice: CRT/LCD>
Item Optimized defaults
Flat Panel Type CRT
Resolution 640x480
Bus Width 24 Bit
Data Type Normal
Refresh Rate 60 Hz
HSYNC Polarity Low
VSYNC Polarity Active Low
SHFCLK Active Period Free runing
LP Active Period Free runing

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˙Resolution
This field is used to select the resolution of LCD panel.
<Choice: 640x480/800x600/1024x768/1152x864/1280x1024/1600x1200>
˙Bus Width
This field is used to select the bus width of LCD panel. Generally is “24bits”.
<Choice: 8/9/12/16/18/24>
˙Data type
This field is used to select the data type of LCD panel. Generally is “Normal”.
<Choice: Normal/2 X>
˙Refresh Rate
This field is used to select the refresh rate (VSYNC frequency) to LCD panel.
Default is “60 Hz”.
<Choice: 60/65/70/72/75/85>
˙HSYNC Polarity
This field is used to select the polarity of HSYNC for LCD. Default is “Low”.
<Choice: Low/High>
˙VSYNC Polarity Active
This field is used to select the polarity of VSYNC for LCD. Default is “Low”.
<Choice: Low/High>
˙SHFCLK Active Period
This field is used to select the working period of shift clock. Generally is “Free
running”.
<Choice: Free running/Active only>
˙LP Active Period
This field is used to select the working period of line pulse. Generally is “Normal”.
<Choice: Free running/Active only>
If you apply one of the standard panels shown above, select the appropriate
option according to the type of panel that you apply. Or, please contact your
dealer or sales representative for custom-made BIOS that will suit the panel that
you apply.
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3-4. Integrated Peripherals
The IDE hard drive controllers support up to two separate hard drives. These drives
have a master/slave relationship that is determined by the cabling configuration
used to attach them to the controller. Your system supports two IDE controllers--a
primary and a secondary--so you can install up to four separate hard disks.
Integrated Peripherals
Item Optimized defaults
Master Drive PIO Mode Auto
Slave Drive PIO Mode Auto
IDE Primary Master UDMA Auto
IDE Primary Slave UDMA Auto
IDE DMA transfer access Enabled
IT8888 ISA Decode IO Press Enter
IT8888 ISA Decode Memory Press Enter
IT8888 DDMA Press Enter
IDE HDD Block Mode Enabled
Onboard Lan Boot ROM Disabled
Onboard FDC Controller: Enabled
Onboard Serial Port 1 3F8/IRQ4
Onboard Serial Port 2 2F8/IRQ3
Onboard Serial Port 3 3E8/IRQ4
Onboard Serial Port 4 2E8/IRQ3
Onboard Parallel Port 378/IRQ5
Parallel Port Mode Standard
ECP Mode Use DMA 3
˙Master/Slave PIO Mode
The two IDE PIO (programmed Input/Output) fields let you set a PIO mode (0-4)
for each IDE device that the internal PCI IDE interface supports. Modes 0
through 4 provide successively increased performance. In Auto mode, the
system automatically determines the best mode for each device.
˙IDE Primary Master/Slave UDMA
These fields allow you to set the Ultra DMA in use. When Auto is selected, the
BIOS will select the best available option after checking your hard drive or
CD-ROM.

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˙IDE HDD Block Mode
Block mode is also called block transfer, multiple commands, or multiple sectors
read/write.
˙IT8888 ISA Decode IO
Item Optimized defaults
Decode I/O Space 0 Disable
Decode I/O Speed 0 Subtractive Speed
Decode I/O Addr. 0 [15:4] 001
Decode I/O Size 0 1 Bytes
Decode I/O Space 1 Disable
Decode I/O Speed 1 Subtractive Speed
Decode I/O Addr. 1[15:4] 001
Decode I/O Size 1 1 Bytes
Decode I/O Space 2 Disable
Decode I/O Speed 2 Subtractive Speed
Decode I/O Addr. 2[15:4] 001
Decode I/O Size 2 1 Bytes
Decode I/O Space 3 Disable
Decode I/O Speed 3 Subtractive Speed
Decode I/O Addr. 3[15:4] 001
Decode I/O Size 3 1 Bytes
Decode I/O Space 4 Disable
Decode I/O Speed 4 Subtractive Speed
Decode I/O Addr. 4[15:4] 001
Decode I/O Size 4 1 Bytes
Decode I/O Space 5 Disable
Decode I/O Speed 5 Subtractive Speed
Decode I/O Addr. 5[15:4] 001
Decode I/O Size 5 1 Bytes
˙Decode I/O Space 0~5
Enable or Disable the Decode I/O space function (0~5).
˙Decode I/O Speed 0~5
Set the Decode I/O speed (0~5)
<Choice: Subtractive Speed/Slow Speed/Medium Speed/Fast Speed>
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˙Decode I/O Addr. 0~5 [15:4]
Set the Decode I/O base address (0~5, the available range of this value is “0001”
to “0FFF”).
˙Decode I/O Size 0~5
Set the Decode I/O size.
<Choice: 1/2/4/8/16/32/64/128 Bytes >
˙IT8888 ISA Decode Memory
Item Optimized defaults
Decode Memory Space 0 Disable
Decode Memory Speed 0 Subtractive Speed
Decode Memory Addr. 0 [23:12] 000
Decode Memory Size 0 16 KB
Decode Memory Space 1 Disable
Decode Memory Speed 1 Subtractive Speed
Decode Memory Addr. 1 [23:12] 000
Decode Memory Size 1 16 KB
Decode Memory Space 2 Disable
Decode Memory Speed 2 Subtractive Speed
Decode Memory Addr. 2 [23:12] 000
Decode Memory Size 2 16 KB
Decode Memory Space 3 Disable
Decode Memory Speed 3 Subtractive Speed
Decode Memory Addr. 3 [23:12] 000
Decode Memory Size 3 16 KB
˙Decode Memory Space 0~3
Enable or Disable the Decode memory space function (0~3).