SOM-4450 ETX Module NS Geode 586-Level SOM-ETX CPU Module with SVGA/LCD/ LVDS/LAN/SSD Interface User's Manual
Copyright notice This document is copyrighted, 2002, by Advantech Co., Ltd. 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.
Packing list Before you begin installing your card, please make sure that the following materials have been shipped: • 1 SOM-4450 System On Module CPU module • CD-ROM or Disks for utility, drivers, and manual (in PDF format) If any of these items are missing or damaged, contact your distributor or sales representative immediately. Version History June, 2002: SOM-4450 User's Manual 2nd edition (Part no. 2006445001) Corrected error on page 10: Sec. 2.1 Connector Location X3 and X4 reversed.
Contents Chapter 1 General Information ..................................... 1 1.1 1.2 1.3 Introduction ....................................................................... 2 Specifications .................................................................... 3 1.2.1 Standard System On Module SBC functions .............. 3 1.2.2 Local-bus VGA interface ............................................ 3 1.2.3 Ethernet function ........................................................ 4 1.2.
Appendix A Programming the Watchdog Timer ........ 19 A.1 Programming the watchdog timer ............................... 20 Appendix B System Assignments .............................. 23 B.1 B.2 B.3 B.4 System I/O ports ............................................................ 24 DMA channel assignments ........................................... 25 Interrupt assignments ................................................... 26 1st MB memory map .....................................................
Figures Figure 1-1: SOM-4450 dimensions ............................................................... 6 Figure 1-2: SOM-4450 Top view ..................................................................... 7 Figure 3-1: Contents of the SOM-4450 Series utility disk ............................. 14 Figure 3-2: BIOS VGA setup screen .............................................................. 15 Tables Table B-1: System I/O ports ..............................................................................
CHAPTER 1 General Information This chapter gives background information on the SOM-4450 CPU System On Module.
1.1 Introduction Advantech's SOM-ETX form factor System On Module provides a scalable solution that meets customers' advanced CPU and application development needs. The SOM-4450 incorporates a low power, fanless GX1-300 MHz processor that has become the embedded integrators' processor of choice. It uses a NS CS5530A chipset as its VGA/LCD controller, with single 18 bit LVDS interface and 64-bit graphics engine.
1.2 Specifications 1.2.1 Standard System On Module SBC functions • CPU: Onboard NS Geode GX1-300 MHz 2.0 V processor • BIOS: Award 256KB Flash memory • System memory: One 144-pin SO-DIMM socket accepts 64~256MB SDRAM. • Enhanced IDE interface: 2EIDE channels support up to 4 IDE devices.
• TTL LCD panel display mode: Panel resolution supports up to 1024 x 768 @ 18 bpp. Supports 18-bit TTL LCD panel • CRT display mode: Non-interlaced CRT monitor resolutions up to 1280 x 1024 @ 256 colors or 1024 x 768 @ 16 bpp 1.2.3 Ethernet function • Chipset: REALTEK RTL 8139 Ethernet controller • Ethernet interface: IEEE 802.3U compatible 100/10Base-T interface. Includes software drivers and boot ROM 1.2.
• Supports 640 x 480 and 800 x 600 input resolutions • Over-scan, under-scan and postion adjustable (Windows 95/98 only) • Auto detection of TV presence 1.2.7 SSD Support • 1 CompactFlash socket on board expandable by chipDisk and external HDD (Bootable CFC HDD) • 16 MB DOC2000 on board (optional) 1.2.
1.
Figure 1-2: SOM-4450 Top view Chapter 1 General Information 7
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CHAPTER 2 Connector Assignments and Descriptions This chapter tells how to set up the SOM4450 hardware. It includes instructions on connecting peripherals, switches and indicators. Make sure you read all the safety precautions before you begin the installation procedure.
2.1 Connector Locations The board has a number of connectors that allow you to configure your system to suit your application.
2.2 Pin Assignments for X1, X2, X3, X4 connectors Please refer to SOM-ETX Design and Specification Guide, Chapter 2 2.3 Safety precautions Warning! 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 sensitive electronic components can be damaged by a sudden rush of power. Caution! Always ground yourself to remove any static charge before touching the board.
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CHAPTER 3 Software Configuration (optional for SOM-4450) This chapter details the software configuration information. It shows you how to configure the SOM-4450 card to match your application requirements. Award system BIOS is covered in Chapter 4.
3.1 Introduction The SOM-4450 system BIOS and custom drivers are located in a 256 KB, 32-pin Flash ROM device, designated U17. A single Flash chip holds the system BIOS and VGA BIOS. The display type can be configured via software. This method minimizes the number of chips and eases configuration. You can change the display BIOS simply by reprogramming the Flash chip. 3.2 Utility CD disk The SOM-4450 is supplied with a software utility on CD-ROM.
1. Apply power to the SOM-4450 application with a color TFT display attached. This is the default setting for the SOM-4450 series. Make sure that the AWDFLASH.EXE and *.BIN files are located in the working drive. Note: Make sure that you do not run AWDFLASH.EXE while your system is operating in EMM386 mode. 2. At the prompt, type AWDFLASH.EXE and press . The VGA configuration program will then display the following: Figure 3-2: BIOS VGA setup screen 3.
3.4 Connections for two standard LCDs 3.4.
3.4.
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APPENDIX A Programming the Watchdog Timer The SOM-4450 is equipped with a watchdog timer that resets the CPU or generates an interrupt if processing comes to a standstill for any reason. This feature ensures system reliability in industrial standalone or unmanned environments.
A.1 Programming the watchdog timer To program the watchdog timer, you must write a program which writes I/O port address 443 (hex). The output data is a value of time interval. The value range is from 01 (hex) to 3E (hex), and the related time interval is 1 sec. to 62 sec. Data Time Interval 01 1 sec. 02 2 sec. 03 3 sec. 04 4 sec. • • • • • • 3E 20 62 sec.
After data entry, your program must refresh the watchdog timer by rewriting the I/O port 443 (hex) while simultaneously setting it. When you want to disable the watchdog timer, your program should read I/O port 443 (hex).
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APPENDIX B System Assignments • System I/O ports • DMA channel assignments • Interrupt assignments • 1st MB memory map
B.1 System I/O ports Table B-1: System I/O ports Addr.
B.
B.
B.4 1st MB memory map Table B-4: 1st MB memory map Addr.
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APPENDIX C LVDS Connection This appendix contains information concerning the LVDS installation and pin assignments.
C.1 LVDS Introduction When you mention the impressive data rate of 400 Mbps at 15 meters for LVDS, you immediately realize how significant the differences are between analog and digital interfaces. There are several other factors other than significantly increased data transfer rate and image quality that make LVDS (Low-Voltage Differential Signaling) very attractive to industrial users.
C.
Connector X3 (VGA, LCD, Video, COM1, COM2, LPT/Floppy, Irda, Mouse, Keyboard) 32 Pin Number Signal Pin Number Signal 1 GND 2 GND 3 R 4 B 5 HSY 6 G 7 VSY 8 DDCK 9 N .C .
