AXIOMTEK SBC856A1 User manual

SBC856A1
POS Board
with DualView and Serial ATA
User’s Manual

ii
Disclaimers
The information in this manual has been carefully checked and is believed to
be accurate. Axiomtek Co., Ltd. assumes no responsibility for any
infringements of patents or other rights of third parties which may result from
its use.
Axiomtek assumes no responsibility for any inaccuracies that may be
contained in this document. Axiomtek makes no commitment to update or to
keep current the information contained in this manual.
Axiomtek reserves the right to make improvements to this document and/or
product at any time and without notice.
No part of this document may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without the prior written permission of
Axiomtek Co., Ltd.
©Copyright 2005 by Axiomtek Co., Ltd.
All rights reserved.
May 2005, Version A1
Printed in Taiwan

iii
ESD Precautions
Integrated circuits on computer boards are sensitive to static electricity.
To avoid damaging chips from electrostatic discharge, observe the
following precautions:
Do not remove boards or integrated circuits from their anti-static
packaging until you are ready to install them.
Before handling a board or integrated circuit, touch an unpainted
portion of the system unit chassis for a few seconds. This helps to
discharge any static electricity on your body.
Wear a wrist-grounding strap, available from most electronic
component stores, when handling boards and components.
Trademarks Acknowledgments
AXIOMTEK is a trademark of Axiomtek Co., Ltd.
IBM is a registered trademark of International Business Machines
Corporation.
MS-DOS, and Windows 95/98/NT/2000 are trademarks of
Microsoft Corporation.
Phoenix-Award is a trademark of Phoenix-Award Software, Inc.
IBM, PC/AT, PS/2, VGA are trademarks of International Business
Machines Corporation.
VIA EDEN are trademarks of VIA Corporation.
Other brand names and trademarks are the properties and
registered brands of their respective owners.

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Table of Contents v
Table of Contents
Disclaimers............................................................................ii
ESD Precautions..................................................................iii
C h a p t e r 1..............................................................................1
Introduction ...............................................................................1
1.1 Specifications ....................................................2
1.2 Utilities Supported.............................................4
C h a p t e r 2..............................................................................5
Jumpers and Connectors .........................................................5
2.1 Board Dimensions.............................................5
2.2 Board Layout......................................................6
2.3 Jumper Settings.................................................7
2.3.1 Audio Line Out/Speaker Out Jumper: JP1 ...................... 9
2.3.2 CMOS Clear Jumper: JP2 .................................................... 9
2.3.3 DiskOnChip
Memory Segment: JP3 ............................... 9
2.3.4 AT&ATX Selection: JP4...................................................... 9
2.3.5 COM1~COM6 Mode Select: JP6, JP7, JP14, JP15, JP16,
JP17 10
2.3.6 Watchdog Timer Trigger Mode Setting: JP8 .................. 11
2.3.7 COM2 RS232/422/485 Settings: JP9, JP10, JP11......... 11
2.3.8 IGA2 TTL/LVDS LCD VDD Selection (VDD of LCD1
and CN14): JP13.................................................................................... 11
2.3.9 IGA1 LVDS LCD VDD Selection (VDD of CN12):
JP12 12
2.3.10 DiskOnChip/NVRAM Selection JP18,JP19,JP20:........ 12
2.4 Connectors.......................................................12
2.4.1 ATX Connector: CN4........................................................ 14
2.4.2 SATA-150 1, 2 Connector: CN6, CN7............................ 14
2.4.3 Front Panel Bezel Connector: CN2 ................................. 15
2.4.4 USB 1&2, USB 3&4 Connector: USB1, USB2............... 17
2.4.5 IRDA Connector: CN5...................................................... 17
2.4.6 VGA Connector: VGA1 .................................................... 17
2.4.7 IGA1 LVDS Power Connector: CN8.............................. 18

vi Table of Contents
2.4.8 IGA1 24bit LVDS Connector: CN9................................ 18
2.4.9 IGA2 LVDS Power Connector: CN11 ........................... 18
2.4.10 IGA2 24bit LVDS Connector: CN12.............................. 19
2.4.11 Ethernet PJ-45 Connector: LAN1.................................... 19
2.4.12 FAN Connector: FAN1, FAN2........................................ 20
2.4.13 Floopy Disk Connector: FDD1........................................ 21
2.4.14 Keyboard & Mouse Connector: CN1, CN3 ................... 21
2.4.15 COM PORT Connector: COM1~COM6 ...................... 22
2.4.16 Print Port Connector: LPT................................................ 23
2.4.17 Audio Connector: AUDIO1 ............................................. 23
2.4.18 IGA2 24bit TTL Connector: LCD................................... 24
C h a p t e r 3............................................................................26
Hardware Description............................................................26
3.1 Microprocessors..............................................26
3.2 BIOS..................................................................26
3.3 System Memory ...............................................26
3.4 I/O Port Address Map ......................................27
C h a p t e r 4............................................................................30
Award BIOS Utility................................................................30
4.1 BIOS Introduction............................................30
4.2 BIOS Setup.......................................................30
4.2.1 Standard CMOS Setup ....................................................... 32
4.2.2 Advanced BIOS Features .................................................. 35
4.2.3 Advanced Chipset Features ............................................... 40
4.2.4 Integrated Peripherals......................................................... 43
4.2.5 Power Management Setup ................................................. 48
4.2.6 PNP / PCI Configuration.................................................. 50
4.2.7 PC Health Status ................................................................. 51
4.2.8 Frequency/Voltage Control .............................................. 52
4.2.9 Load Fail-Safe Defaults...................................................... 53
4.2.10 Set Supervisor / User Password ....................................... 54
4.2.11 Save & Exit Setup ............................................................... 55
4.2.12 Exit Without Saving............................................................ 56
A p p e n d i x A ......................................................................58

Table of Contents vii
Serial ATA Setup Information.............................................58
On-Chip Serial ATA configuration: ................................................... 58
A p p e n d i x B ......................................................................60
Watch Dog Timer....................................................................60
Watchdog Timer Setting ....................................................60
Using the Watchdog Function...........................................61

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SBC856A1 Series All-in-One POS Board User’s Manual
Introduction 1
C h a p t e r 1
Introduction
The SBC856A1 is a VIA EDEN 400/667/800/1G FANLESS -based
POS board with Ethernet and audio interface. Designed with the
space-limited applications in mind, the SBC856A1 is practically the
finest embedded PIII-level in existence. SBC856A1 can adapt a wide
variety of VIA EDEN microprocessors by BIOS auto-detection. To
simplify system integration, it packs embedded provisions such as
super I/Os, Graphics with DualView features, LCD (TTL & LVDS),
Ethernet (Gigabit & Fast), solid state disk, all on a single board.
Unique embedded features such as 4 serial ports (3 x RS-232, 1 x
RS-232/422/485) with +5V/12V power capability and simple
automation control are exclusive design features that allow adoption
of an extensive array of PC peripherals.

SBC856A1 Series All-in-One POS Board User’s Manual
2 Introduction
Designed for the professional embedded developers, the VIA EDEN
embedded board SBC856A1 is virtually the ultimate one-step solution
for embedded system applications.
1.1 Specifications
Chipset: CLE266+VT8237
Bus Clock: 66,100,133MHz
CPU: EDEN 400/667/800/1G
L2 Cache: Integrated in CPU
BIOS: 4Mbit PnP Flash BIOS
System Memory:
1 x 184-pin DIMM sockets
Maximum of 1GB DDR266 RAM
Onboard 128MB DDR RAM
IDE Interface:
2 Port of IDE x 40-pin
PIO Mode 0-4, DMA Mode 0-2 and Ultra
DMA/33/66/100/133
2 channels of SATA-150 with IDE mode supported(optional)
BIOS programmable for 4 IE channels (2*PATA-133 & 2*SATA-
150) as primary/secondary/third/forth IDE
Onboard Multi-I/O
One floppy port (26-pin FPC connector on the soldering
side) supporting one device
One SPP/EPP/ECP parallel port (box header)
Six 16550 UARTs compatible serial ports with +5V/+12V
power output in pin 1 or pin 9 via jumper setting
3~5 x RS-232 (box header)
1x RS-232/422/485 box header and selectable via
jumper setting(COM2)
1 x IrDA (box header) for wireless communcation