Aaeon ETX-821 User manual

ETX CPU Module ETX-821
ETX-821
Onboard Intel®LV Pentium®M/
ULV Celeron®M Processor
ETX CPU Module
With LCD, Ethernet,
Audio, PCI, ISA
ETX-821 Rev. A Manual 1st Ed.
August 2005

ETX CPU Module ETX-821
i
Copyright Notice
This document is copyrighted, 2005. All rights are reserved. The
original manufacturer reserves the right to make improvements
to the products described in this manual at any time without
notice.
No part of this manual may be reproduced, copied, translated,
or transmitted in any form or by any means without the prior
written permission of the original manufacturer. Information
provided in this manual is intended to be accurate and reliable.
However, the original manufacturer assumes no responsibility
for its use, or for any infringements upon the rights of third
parties that may result from its use.
The material inthis document is for product information only
and is subject to change without notice. While reasonable
efforts have been made in the preparation of this document to
assure its accuracy, AAEON assumes no liabilities resulting
from errors or omissions in this document, or from the use of the
information contained herein.
AAEON reserves the right to make changes in the product
design without notice to its users.

ETX CPU Module ETX-821
ii
Acknowledgments
All other products’name or trademarks are properties of their
respective owners.
lAward is a trademark of Award Software International, Inc.
lCompactFlash™is a trademark of the Compact Flash
Association.
lIntel® ,Pentium® M, and Celeron® M are trademarks of Intel®
Corporation.
lMicrosoft Windows®is a registered trademark of Microsoft Corp.
lITE is a trademark of Integrated Technology Express, Inc.
lIBM, PC/AT, PS/2, and VGA are trademarks of International
Business Machines Corporation.

ETX CPU Module ETX-821
iii
Packing List
Before you begin installing your card, please make sure that the
following materials have been shipped:
•1 ETX-821 CPU Module
•1 Quick Installation Guide
•1 CD-ROM for manual (in PDF format) and drivers
If any of these items should be missing or damaged, please
contact your distributor or sales representative immediately.

ETX CPU Module ETX-821
iv
Contents
Chapter 1 General Information
1.1Introduction.............................................................1-2
1.2Features..................................................................1-4
1.3Specifications..........................................................1-5
Chapter 2 Quick Installation Guide
2.1 Safety Precautions..................................................2-2
2.2 Location of Connectors and Jumpers.......................2-3
2.3 Mechanical Drawing................................................2-5
2.4 List of Connectors ...................................................2-7
2.5 ETX 1......................................................................2-8
2.6 ETX 2......................................................................2-9
2.7 ETX 3......................................................................2-10
2.8 ETX 4......................................................................2-11
Chapter 3 Award BIOS Setup
3.1 System Test and Initialization..................................3-2
3.2 Award BIOS Setup..................................................3-3
Chapter 4 Driver Installation
4.1 Installation...............................................................4-3
Appendix A Programming The Watchdog Timer
A.1 Programming.......................................................... A-2
A.2 IT8712 Watchdog Timer Initial Program ................. A-7

ETX CPU Module ETX-821
v
Appendix B I/O Information
B.1 I/O Address Map................................................. B-2
B.2 1st MB Memory Address Map.............................. B-4
B.3 IRQ Mapping Chart............................................. B-5
B.4 DMA Channel Assignments ................................ B-5

ETX CPU Module ETX-821
Chapter 1 General Information 1-1
General
Information
Chapter
1

ETX CPU Module ETX-821
Chapter 1 General Information 1-2
1.1 Introduction
We are appreciating your purchase of AAEON's Embedded
Technology EXtended (ETX) product –the ETX-821.
Being an ETX compatible module, the ETX-821 was designed
specially to improve the quality and speed of your product
development. It will provide a more compact size and more
flexibility for your various applications.
The features of the ETX-821 are based on the Intel®Ultra Low
Voltage Celeron®M or LV Pentium®Mprocessor combined with
Intel®852/855 (GM/GME) and ICH4 chipsets. It has one 200-pin
SODIMM socket that allows a system memory capacity up to 1GB
with DDR SDRAM module. Hence, the ETX-821 can provide
common PC peripheral functions such as graphics, USB, serial,
parallel ports, keyboard/mouse, Ethernet, and IDE. The baseboard
designer can optimize exactly which and how these functions are
implemented physically.
All of AAEON's ETX modules have a standard form factor and a
standard connector layout that carry a specified set of signals. By
adopting this standardization, the designers can create a single
system of “baseboards” that can accept present and future ETX
modules. The baseboard designer can optimize exactly how each

ETX CPU Module ETX-821
Chapter 1 General Information 1 -3
of these functions is implemented physically. Designers can place
connectors precisely where needed for the application on a
baseboard designed to optimally fit a system’s packaging.
AAEON’s ETX system is your stepping-stone to a whole new world
of embedded product development. Once again, thank you for your
purchase of this AAEON product and we trust that your product
development will be swift, sure and successful!

ETX CPU Module ETX-821
Chapter 1 General Information 1-4
1.2Features
•Onboard Intel®Celeron®M 600MHz(w/o L2 on-die
cache, w/ 852GM), Celeron®M 1.3GHz(w/ 852GM)
and LV Pentium®M 1.1GHz(w/ 855GME)
•266MHz Memory Bus Supports One 200-pin DDR
SO-DIMM up to 1GB(852GM), 333MHz Memory Bus
Supports One 200-pin DDR SO-DIMM up to
1GB(855GME)
•Supports 2 Channel LVDS LCD and TV-out
•Supports 10/100Mbps Ethernet
•Supports AC97 Audio CODEC
•Supports 2 COM / 1 Parallel / 4 USB2.0

ETX CPU Module ETX-821
Chapter 1 General Information 1 -5
1.3 Specifications
System
•CPU: Onboard Intel®Celeron®M
600MHz (w/o L2 on-die cache),
Celeron®M 1.3GHz, and LV
Pentium®M 1.1GHz
lMemory:266MHz memory bus supports
one 200-pin DDR SO-DIMM up
to 1GB (852GM), 333MHz
memory bus supports one
200-pin DDR SO-DIMM up to
1GB (855GME)
lChipset: Intel®852GM or 855GME/ICH4
lEthernet:Intel®82562ET, 10/100 Base-TX
lBIOS:Award Plug & Play BIOS
lWatchdog Timer:Generate a Time-out System
Reset
lH/W Status Monitoring: Supports Power Supply
Voltages, Fan Speed and
Temperatures Monitoring
lExpansion Interface:ISA, PCI
lPower Supply Voltage:+5V. DC
lBoard Size:4.5”(L) x 3.75”(W) (114mm x
95mm)

ETX CPU Module ETX-821
Chapter 1 General Information 1-6
lGross Weight: 0.66lb (0.3kg)
lOperating Temperature: 32°F~140°F(0°C~60°C)
Display
lChip:Intel®852GM or 855GME/ICH4
lMemory: Shared Memory Up to 64MB
with DVMT
lResolutions:Up to 1600 x1200
lLCD Interface: Up to 24-bit Dual Channel LVDS
TFT LCD
lTV-out: Supports NTSC and PAL
Standard
I/O
lMIO: EIDE x 2, Keyboard + Mouse x1,
Parallel x 1, RS-232 x 2
lIrDA: One IrDA Tx/Rx Header
lAudio:2CH AC97 CODEC
lUSB: 4 USB 2.0 Ports

ETX CPU Module ETX-821
Chapter 2 Quick Installation Guide 2 -1
Quick
Installation
Guide
Chapter
2
Part No. 2007821010 1st Ed. Printed in TaiwanAug. 2005
Notice:
The Quick Installation Guide is derived from
Chapter 2 of
user manual. For other chapters and
further installation
instructions, please refer to the user manual CD-ROM
that
came with the product.

ETX CPU Module ETX-821
Chapter 2 Quick Installation Guide 2 -2
2.1 Safety Precautions
Always completely disconnect the power cord from
your board whenever you are working on it. Do not
make connections while the power is on, because a
sudden rush of power can damage sensitive
electronic components.
Always ground yourself to remove any static charge
before touching the board. Modern electronic
devices are very sensitive to static electric charges.
Use a grounding wrist strap at all times. Place all
electronic components on a static-dissipative surface
or in a static-shielded bag when they are not in the
chassis

ETX CPU Module ETX-821
Chapter 2 Quick Installation Guide 2 -3
2.2Location of Connectors and Jumpers
Component Side

ETX CPU Module ETX-821
Chapter 2 Quick Installation Guide 2 -4
Solder Side

ETX CPU Module ETX-821
Chapter 2 Quick Installation Guide 2 -5
2.3 Mechanical Drawing
Component Side

ETX CPU Module ETX-821
Chapter 2 Quick Installation Guide 2 -6
Solder Side

ETX CPU Module ETX-821
Chapter 2 Quick Installation Guide 2 -7
2.4List of Connectors
The board has a number of connectors that allow you to configure
your system to suit your application. The table below shows the
function of each board's connectors:
Connectors
Label Function
ETX 1 PCI / USB / Audio
ETX 2ISA
ETX 3 VGA / LCD / Video out / COMs / LPT / FDD /
IrDA / Mouse / Keyboard
ETX 4IDE 1 / IDE 2 / Miscellaneous
CN 1 DDR SODIMM
Caution:
In order to properly clear the CMOS when using this ETX module
with ECB-901A, please ensure to turn off the main switch on the
power supply before taking actions. That should include both AT
and ATX power supply. Fail to turn off the main switch of power
supply might result in unsuccessful CLEAR CMOS action.

ETX CPU Module ETX-821
Chapter 2 Quick Installation Guide 2 -8
2.5 ETX 1
Pin
Signal Pin Signal
Pin
Signal Pin
Signal
1
GND
2
GND
51
VCC
52
VCC
3PCICLK3
4PCICLK4
53 PAR 54 SERR#
5GND 6GND
55 PERR# 56 NC
7PCICLK1 8PCICLK2
57 PCI_PME#
58 USB2#
9REQ3# 10 GNT3#
59 PLOCK# 60 DEVSEL#
11 GNT2# 12 3V
61 TRDY# 62 USB3#
13 REQ2# 14 GNT1#
63 IRDY# 64 STOP#
15 REQ1# 16 3V
65 FRAME# 66 USB2
17 GNT0# 18 NC
67 GND 68 GND
19 VCC 20 VCC
69 AD16 70 CBE2#
21 DREQ2 /
SERIRQ 22 REQ0#
71 AD17 72 USB3
23 AD0 24 3V
73 AD19 74 AD18
25 AD1 26 AD2
75 AD20 76 USB0#
27 AD4 28 AD3
77 AD22 78 AD21
29 AD6 30 AD5
79 AD23 80 USB1#
31 CBE0# 32 AD7
81 AD24 82 CBE3#
33 AD8 34 AD9
83 VCC 84 VCC
35 GND 36 GND
85 AD25 86 AD26
37 AD10 38 LIN_L
87 AD28 88 USB0
39 AD11 40 MIC_IN
89 AD27 90 AD29
41 AD12 42 LIN_R
91 AD30 92 USB1
43 AD13 44 VCCAUD
93 PCIRST#
94 AD31
45 AD14 46 LOUT_L
95 INTC# 96 INTD#
47 AD15 48 GNDAUD
97 INTA# 98 INTB#
49 CBE1# 50 LOUT_R
99 GND 100
GND