Advantech SOM-DB4400 User manual

SOM-DB4400
ETX Development Board
User's Manual

ii
Copyright notice
This document is copyrighted, 2001, byAdvantech 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. However, the original
manufacturer assumes no responsibility for its use, nor for any
infringements upon the rights of third parties which may result from its
use.
Acknowledgements
SOM and DTOS are trademarks ofAdvantech Co., Ltd.
AMD is a trademark ofAdvanced Micro Devices, Inc.
Award is a trademark ofAward Software International, Inc.
Cyrixis atrademark ofCyrix Corporation.
IBM, PC/AT, PS/2 andVGAare trademarks of International Business
Machines Corporation.
Intel and Pentium are trademarks of Intel Corporation.
Microsoft Windows®is a registered trademark of Microsoft Corp.
RTLis atrademark of RealtekSemiconductor Co.,Ltd.
C&T is a trademark of Chips andTechnologies, Inc.
UMC is a trademark of United Microelectronics Corporation.
Winbond is a trademark of Winbond Electronics Corp.
STPC is a trademark ofSGS Thomson Corp.
For more information on this and other Advantech products, please
visitour websiteat:http://www.advantech.com
For technical support and service, please visit our support website at:
http://www.advantech.com/support
Thismanualis forthe SOM-DB4400
PartNo.2006440001
2nd Edition Printed in Taiwan June 2002

iii
Version History
June,2002:SOM-DB4400 User'sManual 2nd edition(Part no.
2006440001)Correctederror onpage 14:Sec.2.5 ConnectorLocation
X3 and X4 reversed.
September2001,SOM-DB4400 User'sManual 1st edition(Part no.
2006440000)

iv
Packing list
Before you begin installing your card, please make sure that the
following materials have been shipped:
• 1 SOM-DB4400ETX DevelopmentBoard
• CD-ROM or Disks for utility, drivers, including manual (in PDF
format)
• 1 warranty certificate
If any of these items are missing or damaged, contact your distributor
or sales representative immediately.

v
Contents
CHAPTER 1 General Information .................................. 1
1.1 Introduction ......................................................................... 2
1.2 Specifications ....................................................................... 3
1.3 Safety precautions............................................................... 4
1.4 Board layout: dimensions .................................................. 5
CHAPTER 2 Connecting Peripherals ........................... 7
2.1 Board layout: Jumper and connector locations ............. 8
2.2 Jumpers and Connectors................................................... 9
2.3 Setting jumpers ................................................................. 13
2.4 Connector Locations ........................................................ 14
2.5 Pin Assignments (X1,X2,X3,X4 connectors) ................ 15
2.6 Safety precautions............................................................. 15
CHAPTER 3 Connector Descriptions ......................... 17
3.1 IDE hard drive connector (CN7).................................... 18
3.2 CompactFlash disk interface (CN6)............................... 19
3.3 Floppy drive connector (CN8) ........................................ 19
3.4 Parallel port connector (CN19) ...................................... 20
3.5 PS/2 keyboard and mouse connector (CN29) .............. 21
3.6 IR header (CN14) ............................................................. 21
3.7 Audio interfaces (CN3) .................................................... 21
3.9 Serial ports (CN13, CN15) .............................................. 22
3.10 VGA interface connections (CN11, CN31) ................. 22
3.11 Ethernet RJ-45 connector and USB connector(C21) 24
3.12 TV-out S-video connector (CN28) ............................... 24
3.13 PCI slots (PCI 1~3) ........................................................ 24
3.14 400-pin ETX socket(X1, X2, X3, X4) .......................... 24
APPENDIX A Pin Assignments .................................... 25
A.1 ATX power connector (CN2).......................................... 26
A.2 IDE hard drive connector (CN7) ................................... 27

vi
A.3 Floppy drive connector (CN8) ....................................... 28
A.4 IR connector (CN14) ....................................................... 29
A.5 S-Video connector (CN28).............................................. 30
A.6 TV-out connector (CN28) ............................................... 30
A.7 24-bit Flat panel connector (CN31)............................... 31
A.9 LCD Signal Mapping ....................................................... 32
A.10 Parallel Port connector (CN19) ................................... 33
A.11 VGA connector (CN11) ................................................. 34
A.12 COM1 RS-232 serial port (CN13) .............................. 35
A.13 COM2 RS-232 connector (CN15)............................... 35
A.14 Keyboard connnector (CN 29 lower).......................... 36
A.15 Mouse connnector (CN 29 upper) .............................. 36
APPENDIX B LVDS Connection................................. 37
B.1 LVDS Introduction ......................................................... 38
B.2 LVDS Pin assingments .................................................. 39

CHAPTER
General Information
This chapter provides background
informationfor theSOM-DB4400.
Sections include:
• Card specifications
• Board layout
1

2SOM-DB4400 User's Manual
1.1 Introduction
With the SOM-DB4400 and its reference circuits, users may quickly
test their specific SOM-ETX module and easily design their own
solution boards for the SOM-ETX.
Advantech’s new SOM-ETX is a form factor designed to increase
efficiency and effectiveness in embedded systems. This product
facilitates easier system design by eliminating expensive connec-
tors and cumbersome adapter cables. These solutions make it more
simple to customize a system using an off the shelf embedded PC
and reduces the time to market of the product. This standard is a
reference for dimensions and pinouts of SOM-ETX boards. Each SOM-
ETX CPU board provides a different set of features. Please see the
SOM-ETX CPU board manual for details about the product or
contact your supplier to enquire about supported features.
The SOM-ETX boards are interchangeable as long as they provide
the same features (i.e. 2 channel LVDS video output). In order to
maintain this compatibility, ask your supplier or application
engineers for assistance.
To learn about SOM-ETX basic functions, refer to the SOM-ETX
evaluation schematic. This material better explains and clarifies
information about features. Some of the non-standard features,
such as the panel interface, are not usable usless the appropriate
external parts are used.
Parts for EMV/ ESD protection are not included on the SOM-ETX
CPU board.Also note that SOM-ETX signals do not need an
externalPull-upor Pulldown.
If you are creating a backplane for SOM-ETX boards ensure that
you have the appropriate experience with PCI device development.
It is also ideal to be familiar with signal integrity and timing when
laying out your backplane.

Chapter 1 General Information 3
1.2 Specifications
•FlexATXboardsizeandconnectorallocationonedge
•TwoPCI-busandtwoISAexpansionslots
•OneDB-15 VGA connector
•RJ-45Ethernetconnector
•OneDB-9 COM1serialportconnector
•OneDB-9serial port forRS-232/422/485, jumper
selected
•TwoUSBconnectors
•OneLCD connector(upto48bits)
•OneCompactFlash™socket(typeII)
•OneDB-25 printerport connector
•OneFDDconnectorandoneHDDconnector(40-pin)
•One6-pinPS/2KB/mouseconnector(Keyboard/Mouse
split)
•Threephone jackconnectors (Line-in,line-out, Mic-in)
•OneCD-inconnector
•OneTV-outconnector(AVterminal)
•OneAudioCodec
•OneIRDA
Mechanical and Environmental
Power supply : ATX power supply
Max. Power requirements: 5 W
Operating temperature: 0 to 60° C (32 to 140° F )
Board Size: 229 mm x 191mm
Weight:0.35Kg

4SOM-DB4400 User's Manual
1.3 Safety precautions
Warning! Alwayscompletelydisconnect thepower cord from
yourchassis whenever youare working on it. Do
not make connections while the power is on
because sensitive electronic components can be
damagedby the suddenrush ofpower. Only
experiencedelectronicspersonnelshould open
the PC chassis.
Caution! Alwaysground yourself toremove any static
chargebefore touching theCPU card. 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.

Chapter 1 General Information 5
1.4 Board layout: dimensions
Fig 1-1: SOM-DB4400 Dimensions

6SOM-DB4400 User's Manual

CHAPTER
2
Connecting Peripherals
This chapter tells how to set up the SOM-
DB4400 hardware.

8SOM-DB4400 User's Manual
CN2
CN8
J2
CN5
CN7
CN6
J1CN28
CN14
•
•
•
•
•
•
•
•
•
J4J7
J5 •
•
•
J6
CN15 •
•
CN19,13,11 •
CN3 •
CN16,17, 32, 33 CN1,18,34
•
•
•
••
•
•
CN29
CN21 •
•
2.1 Board layout: Jumper and connector
locations
SOM-DB4400 Jumpers & Connectors
CN22
•
•
X1 •X2
X3
X4 ••
CN31
•

Chapter 2 Connecting peripherals 9
2.2 Jumpers and connectors
Connectors on the board link it to external devices such as hard disk
drives, a keyboard or expansion bus connectors. In addition, the board
has a number of jumpers that allow you to configure your system to
suit your application.
The table below lists the function of each of the board jumpers and
connectors:
Table 2-1: connectors
Name Function
CN 1 ISA Slot
CN 2 ATX Power Connector
CN 3 Audio Connector
CN 5 Secondary Slaver IDE 22X2 Pins Box Header
Connector
CN 6 Compact Flash
CN 7 Primary IDE 20X2 Pins Box Header Connector
CN 8 FDD 17X2 Pins Box Header Connector
CN 11 CRT 15 Pins D-Type Connector
CN 13 COM1 9 Pins D-Type Connector
CN 14 SIR 5X1 Pins Wafer Box Connector
CN 15 COM2 5X2 Box Header Connector
CN 16 PCI1 Slot
CN 17 PCI2 Slot
CN 18 ISA Slot
CN 19 LPT1 25 Pins D-Type Connector
CN 21 USB & LAN Connector
CN 22 Internal KB & Mouse 6X1 Wafer Box Connector
CN 28 TV Out 3X2 Pins Pin Header Connector
CN 29 PS2 KB & Mouse Connector
CN 31 24-bit LCD connector
CN 32 PCI3 Slot
CN 33 PCI4 Slot
CN 34 ISA Slot

10 SOM-DB4400 User's Manual
Table 2-2: Jumpers
Label Function
J1 System Function
J2 WatchDog Reset Clear RTC
J4 COM1, COM2 Voltage select
J5 COM1, COM2 Ring/Voltage select
J6 Select RS232 or RS485 or RS422
J7 Select KB and MOUSE
Table 2-3: J1: System Function Connector *: LOW ACTIVE
Pin Function Pin Function
1 PW LED 2 +5V
3 PW LED 4 GND
5 PW LED GND 6 SPKB
7 KBLOCK* 8 SPKA
9 KBLOCK* GND 10 NC
11 PANSW* GND 12 HDDLED
13 PANSW* 14 HDDLED +5V
15 NC 16 NC
17 NC 18 FPRST*
19 GND 20 FPRST* GND

Chapter 2 Connecting peripherals 11
Table 2-4: J2: Watchdog Reset Clear RTC
Close Pins Function
1-2 Reset
2-3 Clear RTC
Table 2-5: J4: COM1, COM2 Voltage select
Close Pins COM1
2-4 +5 V*
4-6 + 12 V
Close Pins COM2
1-3 +5 V*
3-5 + 12 V
Table 2-6: J5: COM3, COM4 Ring/Voltage select
Close Pins COM3
2-4 Voltage
4-6 Ring*
Close Pins COM4
1-3 Voltage
3-5 Ring*
*default
*default

12 SOM-DB4400 User's Manual
Table 2-7: J6: RS-232, RS-485, RS-422 Select
RS232* RS485 RS422
5-6 3-4 1-2
7-9 9-11 9-11
8-10 10-12 10-12
13-15 15-17 15-17
14-16 16-18 16-18
*default

Chapter 2 Connecting peripherals 13
You may configure your card to match the needs of your application
by setting jumpers. A jumper is a metal bridge used to close an electric
circuit. It consists of two metal pins and a small metal clip (often
protected by a plastic cover) that slides over the pins to connect them.
To "close" a jumper, you connect the pins with the clip. To "open” a
jumper, you remove the clip. Sometimes a jumper will have three pins,
labeled 1, 2 and 3. In this case you would connect either pins 1 and 2,
or 2 and 3.
The jumper settings are schematically depicted in this manual as
follows:
A pair of needle-nose pliers may be helpful when working with
jumpers.
If you have any doubts about the best hardware configuration for
your application, contact your local distributor or sales representative
before you make any changes.
Generally, you simply need a standard cable to make most connec-
tions.
2.3 Setting jumpers
1
3
2
Closed 2-3Open Closed
Closed 2-3Open Closed
1 2 3

14 SOM-DB4400 User's Manual
2.4 Connector Locations
The board has a number of connectors that allow you to configure
your system to suit your application.
The tables below shows the function of each of the board's connec-
tors:
SOM-DB4400 ETX Pinout