IEI Technology WAFER-4821 User manual

WAFER-4821
DX4-100 MHz with
Ethernet SBC
Version 2.0
User Manual Version 2.0
August 22, 2003
©Copyright 2003 by ICP Electronics Inc. All Rights Reserved.

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Copyright Notice
The information in this document is subject to change without prior notice in order
to improve reliability, design and function and does not represent a commitment on
the part of the manufacturer.
In no event will the manufacturer be liable for direct, indirect, special, incidental, or
consequential damages arising out of the use or inability to use the product or
documentation, even if advised of the possibility of such damages.
This document contains proprietary information protected by copyright. All rights
are reserved. No part of this manual may be reproduced by any mechanical,
electronic, or other means in any form without prior written permission of the
manufacturer.
Trademarks
WAFER-4821 is a registered trademark of ICP Electronics Inc. IBM PC is a
registered trademark of International Business Machines Corporation. Intel is a
registered trademark of Intel Corporation. AMI is a registered trademark of
American Megatrends, Inc. Other product names mentioned herein are used for
identification purposes only and may be trademarks and/or registered trademarks
of their respective companies.
Support
For any questions regarding the content of this manual or related issues, please
email us at: [email protected].

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Table of Contents
1Introduction .................................................................. 5
1.1 Specifications....................................................................................6
1.2 Package Contents ..............................................................................7
2Installation.................................................................... 8
2.1 WAFER-4821 Layout...........................................................................8
2.2 Unpacking Precautions........................................................................9
2.3 CPU Setting for WAFER-4821...............................................................9
2.4 Watchdog Timer ..............................................................................10
2.5 DiskOnChip™ Flash Disk ...................................................................10
2.6 Serial port2 RI Pin Setting.................................................................11
2.7 Serial port2 RS-232, RS-422 or RS-485 Setting....................................11
2.8 Free IRQ3 and IRQ4 Setting ..............................................................12
2.9 Clear CMOS Setup ...........................................................................12
2.10 Realtek8019AS Setting ..................................................................12
3Connection .................................................................. 13
3.1 Floppy Disk Drive Connector..............................................................13
3.2 IDE Disk Drive Connector..................................................................14
3.3 Parallel Port ....................................................................................15
3.4 Serial Ports.....................................................................................16
3.5 Keyboard/Mouse Connector...............................................................17
3.6 External Switches and Indicators........................................................18
3.7 External Power Connector .................................................................18
3.8 External Speaker .............................................................................19
3.9 PC/104 Connection Bus ....................................................................20
3.9 IrDA Infrared Interface Port...............................................................22
3.10 LAN RJ45 Connector......................................................................22
3.11 Digital I/O....................................................................................23
4AMI BIOS Setup........................................................... 24
4.1 Getting Started................................................................................24
4.2 Standard CMOS Setup......................................................................25
4.3 Advanced CMOS Setup .....................................................................26
4.4 Advanced Chipset Setup ...................................................................28
4.5 Peripheral Setup..............................................................................28
4.6 Auto-Detect Hard Disk......................................................................30

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4.7 Change Supervisor Password.............................................................30
4.8 Auto Configuration with Optimal Settings ............................................31
4.9 Auto Configuration with Fail Safe Settings ...........................................31
4.10 Save Settings and Exit...................................................................32
4.11 Exit Without Saving.......................................................................32
Appendix A Watchdog Timer .............................................. 33
Appendix B I/O Information .............................................. 35
Appendix C Digital Input and Output.................................. 37

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Chapter 1 Introduction
Thank you for choosing WAFER-4821 DX4-100 with Ethernet Single Board
Computer. WAFER-4821 is a stand alone board with PC/104 connector, equipped
with four COM Ports and advanced high-performance multi-mode I/O and Ethernet
function, designed for the system manufacturers, integrators, or VARs to provide
all the performance, reliability, and quality.
An advanced high performance super I/O function is supported by the Maple
chipset. The on-chip UARTs are compatible with the NS16C550. The parallel port
and IDE interface are compatible with IBM PC/AT and XT architecture's, as well as
EPP and ECP.
The most outstanding feature in the WAFER-4821 is the built-in PC/104 expansion
bus. Based on the PC/104 bus, you can easily install over thousands of PC/104
modules from hundreds vendors in the world. WAFER-4821 has external power
connector that can let it connects to power supply directly. It is suitable for your
standalone applications. Also, it provides four COM Ports: three RS232C, one
RS-232C or RS-422/485 Port, for industrial field site application.

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1.1 Specifications
WAFER-4821 DX4-100 with Ethernet Single Board Computer provides the following
specification:
• System on Chip (SOC):
System core logic, I/O, CPU (DX4-100) in one chip.
Real-time clock/calendar and battery backup: by DS12887 or equivalent.
• Memory:
DRAM memory: up to 32MB, 1 pcs 72-pin SIMM on board 4 MB designed for
customer requirement.
Disk on Chip socket: support one Disk on Chip socket.
• Ethernet Interface:
Chipset: Realtek RTL-8019AS chipset (on board).
Type: 16-bit Ethernet, Novell NE2000 compatible, 10Base-T 10 MBps.
Connection: on-board RJ-45 connector.
• Integrated Multi I/O:
IDE hard disk drive interface: Supports up to two IDE hard disk drives. Can be
disabled by BIOS Setup.
Floppy disk drive interface: Supports two 2.88 MB, 1.44MB, 1.2MB, 720KB, or
360KB floppy disk drives. Can be disabled by BIOS Setup.
Four high speed Series ports: Three RS-232C, one RS-232C or RS-422/485
Port.
PS/2 Mouse/Keyboard Connector: 6-pin Mini DIN Keyboard Connector.
• Digital I/O: 4 TTL inputs and 4 TTL outputs
• Industrial features:
Watchdog timer: Software programmable time period can be set from 1 to 255
seconds. Reset is generated when CPU does not periodically trigger the timer.
PC/104 expansion bus: A 64-pin and 40-pin, industrial embedded-PC bus
standard.
External power connector: 5-pin male connector (model: 2571-08TS)

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Keyboard connector: 6-pin mini-DIN keyboard connector.
• General information:
Power Consumption: +5V @ 1.85A (DX4-100MHz, 32MB RAM)
Operating Temperature: 0℃~ 60℃
Humidity: 5% ~ 95%, non-condensed
Dimension: 102.01mm(W) x 146.48mm(L)
1.2 Package Contents
In addition to this User Manual, WAFER-4821 package includes the following items:
• WAFER-4821 DX4-100 with Ethernet Single Board Computer x 1
• RS-232/Printer Cable x 1
• FDD/HDD Cable x 1
• 6-pin Mini-Din Keyboard/Mouse Adapter Cable x 1
• Power/wire Cable x 1
• RS-232/422/485 Cable x 1

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Chapter 2 Installation
This chapter describes how to install the WAFER-4821. The layout of WAFER-4821
is shown on the next page and the Unpacking Precautions that you should be
careful with is described on the following page. Jumpers and switches setting is
also included for this board’s configuration, such as: system clock setting and
Watchdog timer.
1.1 WAFER-4821 Layout

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1.2 Unpacking Precautions
Some components on WAFER-4821 SBC are very sensitive to static electric charges
and can be damaged by a sudden rush of power. To protect it from unintended
damage, follow the precautions below:
i. Ground yourself to remove any static charge before touching your WAFER-4821
SBC. You can do it by using a grounded wrist strap at all times or by frequently
touching any conducting materials that is connected to the ground.
ii. Handle your WAFER-4821 SBC by its edges. Do not touch IC chips, leads or
circuitry if not necessary.
iii. Do not plug any connector or jumper while the power is on.
1.3 CPU Setting for WAFER-4821
• JP5: CPU CLOCK SETTING:
The system clock is generated by the ICS650R-01, and the different CPU clock
frequency can be selected by JP5 and shown as following table:
CPU CLK 1-2 3-4
75MHz ON ON
100MHz OFF OFF

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1.4 Watchdog Timer
Watchdog Timer is enabled by reading port 443H. It should be triggered before
the time-out period ends, otherwise it will assume the program operation is
abnormal and will issue a reset signal to start again. The Watchdog Timer is
disabled by reading port 043H, or 843H.
• JP2: Watch-Dog Timer Type Selector
1-2 RESERVED
2-3 RESET
1.5 DiskOnChip™ Flash Disk
The DiskOnChip™ does not need any extra software utility because the DOC is
100% software compatible to hard disk. It is just “plug and play”, easy and
reliable.
• JP3: DiskOnChip™ Memory Address Setting
ADDRESS 1-2 3-4 5-6
CE00H OPEN CLOSE CLOSE
D600H CLOSE OPEN CLOSE
DE00H OPEN OPEN CLOSE

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1.6 Serial port2 RI Pin Setting
The serial port2 (CN16) can supply +5V or +12V power to the serial devices via RI
pin (Pin 9) of the serial port connector. The maximum current is 1A with fuse
protection. If the output is set to 12V, make sure that you have 12V to supply to
the board.
• JP13, JP14: for CN16, Pin 8 Selector
CN16 Pin9 JP14 JP13
RI Signal 2-3 Any is applicable
when JP 14 uses 2-3
+5V 1-2 2-3
+12V 1-2 1-2
* +5V or +12V output is fuse protected.
1.7 Serial port2 RS-232, RS-422 or RS-485 Setting
The serial port2 (CN16) can be set to RS-232 or RS-422/485 for industrial field site
application.
• JP8: COM2 (CN16) RS-232/422/485 setting
RS-232 RS-422 RS-485
1-2 CLOSE OPEN OPEN
3-4 OPEN CLOSE CLOSE
5-6 OPEN OPEN CLOSE

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1.8 Free IRQ3 and IRQ4 Setting
If you want to free IRQ3 and IRQ4 for other application then the serial port2 and
serial port1 have to be disabled by BIOS setting and the jumper JP9 and JP10 have
to be closed to free IRQ3 and IRQ4, respectively.
• JP 9: Free IRQ3 Setting
OFF Enable serial port2
ON Disable serial port2
• JP 10: Free IRQ4 Setting
OFF Enable serial port1
ON Disable serial port1
1.9 Clear CMOS Setup
If you forget the CMOS password, you can clear or reset it by closing the JP11. After
JP11 is closed, turn on the power for about 3 seconds then turn it off and open the
JP11. Now, the password and CMOS contents have been cleared from your CMOS.
• JP11: Clear CMOS
OFF NORMAL
ON CLEAR
1.10 Realtek8019AS Setting
Realtek8019AS can be set to PNP MODE or JUMPERLESS MODE.
• JP1: Realtek8019AS Setting
OFF PNP mode
ON JUMPERLESS mode

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Chapter 3 Connection
This chapter describes how to connect peripherals, switches and indicators to the
WAFER-4821 board. You can access most of the connectors from the top of the
board while it is installed in the chassis.
1.1 Floppy Disk Drive Connector
WAFER-4821 board comes equipped with a 34-pin daisy-chain driver connector
cable. The detailed pin assignment of the connector is specified as following
table:
• CN8: Floppy Disk Drive Connector
PIN Description PIN Description
1 GROUND 2 REDUCE WRITE
3 GROUND 4 N/C
5 GROUND 6 N/C
7 GROUND 8 INDEX#
9 GROUND 10 MOTOR ENABLE 0#
11 GROUND 12 DRIVE SELECT 1#
13 GROUND 14 DRIVE SELECT 0#
15 GROUND 16 MOTOR ENABLE 1#
17 GROUND 18 DIRECTION#
19 GROUND 20 STEP#
21 GROUND 22 WRITE DATA#
23 GROUND 24 FDCWE#
25 GROUND 26 TRACK 0#
27 GROUND 28 WRITE PROTECT#
29 GROUND 30 READ DATA#
31 GROUND 32 HEAD#
33 GROUND 34 DISK CHANGE#

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1.2 IDE Disk Drive Connector
You can attach two IDE (Integrated Device Electronics) hard disk drives to the
WAFER-4821 internal controller. The board comes equipped with a 44-pin
flat-cable connector. The detailed pin assignment of the connector is specified as
following table:
• CN1: IDE Interface Connector
PIN Description PIN Description
1 RESET# 2 GROUND
3 DATA 7 4 DATA 8
5 DATA 6 6 DATA 9
7 DATA 5 8 DATA 10
9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GND 20 N/C
21 N/C 22 GROUND
23 IOW# 24 GROUND
25 IOR# 26 GROUND
27 IDE CHRDY 28 BALE
29 N/C 30 GROUND
31 IRQ14 32 IOCS16
33 SA 1 34 N/C
35 SA 0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND
41 VCC 42 VCC
43 GND 44 VCC

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1.3 Parallel Port
This port is usually connected to a printer. WAFER-4821 includes an on-board
parallel port, accessed through a 26-pin flat-cable connector CN6. The detailed
pin assignment of the connector is specified as following table:
• CN6: Parallel Port Connector
PIN Description PIN Description
1 STROBE# 2 DATA 0
3 DATA 1 4 DATA 2
5 DATA 3 6 DATA 4
7 DATA 5 8 DATA 6
9 DATA 7 10 ACKNOWLEDGE
11 BUSY 12 PAPER EMPTY
13 PRINTER SELECT 14 AUTO FORM FEED #
15 ERROR# 16 INITIALIZE
17 LPT SELECT LN# 18 GND
19 GND 20 GND
21 GND 22 GND
23 GND 24 GND
25 GND 26 N/C

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1.4 Serial Ports
WAFER-4821 offers four high speed NS16C550 compatible UARTs with
Read/Receive 16 byte FIFO serial ports. These ports enable you connect to serial
devices or a communication network. Two 9-pin DSUB connectors, one 10-pin
header and one 14-pin header are provided by WAFER-4821. The detailed pin
assignment of the connectors are specified as following tables:
• CN17: Serial Port1 Connector (9-pin DSUB)
PIN Signal Name
PIN Signal Name
1 DCD 6 DSR
2 RX 7 RTS
3 TX 8 CTS
4 DTR 9 RI
5 GND 10 GND
• CN16: Serial Port2 Connector (14-pin Header/W Housing)
PIN Description PIN Description
1 DCD 2 DSR
3 RX 4 RTS
5 TX 6 CTS
7 DTR 8 RI
9 GND 10 NC
11 TX2+ 12 TX2-
13 RX2+ 14 RX2-
• CN11: Serial Port3 Connector (9-pin DSUB)
PIN Signal Name
PIN Signal Name
1 DCD 6 DSR
2 RX 7 RTS
3 TX 8 CTS
4 DTR 9 RI
5 GND 10 NC

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• CN10: Serial Port4 Connector (10-pin Header/W Housing)
PIN Description PIN Description
1 DCD 6 DSR
2 RX 7 RTS
3 TX 8 CTS
4 DTR 9 RI
5 GND 10 GND
1.5 Keyboard/Mouse Connector
WAFER-4821 provides a 6-pin Mini-DIN connector CN13 on the board-mounting
bracket for single board computer applications.
• CN13: PS/2Mouse, Keyboard Connector (Mini Din)
PIN Description
1 KBDAT
2 MDAT
3 GND
4 +5V
5 KBCLK
6 MCLK

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1.6 External Switches and Indicators
There are many external switches and indicators for monitoring and controlling
your CPU board. These features are optional. The detailed pin assignment of the
connectors is specified as following table:
• CN5: Reset button
PIN Description
1 RESET
2 GND
• CN2: IDE LED connector
PIN Description
1 HDD ACTIVE#
2 +5V
1.7 External Power Connector
WAFER-4821 has an on-board external power connector CN3 and a 2-pin power
connector CN7. You can connect power directly to the CPU board without passive
backplane application.
• CN3: External Power Connector
PIN Description
1 VCC
2 VCC
3 GND
4 GND
5 +12V

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• CN7: External Power LED Connector
PIN Description
1 +5V
2 GND
1.8 External Speaker
WAFER-4821 has its own buzzer, which can be connected to external speaker
through the connector CN15:
• CN15: External Speaker Connector
PIN Description
1 +5V
2 Speaker

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3.9 PC/104 Connection Bus
WAFER-4821 PC/104 expansion bus enables you to attach any kind of PC/104
modules. The PC/104 bus has already become the industrial embedded PC bus
standard, so you can easily install over thousands of PC/104 modules from
hundreds of vendors in the world. There are two PC/104 connectors on this board:
PC/104-64 and PC/104-40.
• CN19: PC/104-40 Connector
PIN Description PIN Description
1 GND 21 GND
2 MCS16# 22 SBHE#
3 IOCS16# 23 LA23
4 IRQ10 24 LA22
5 IRQ11 25 LA21
6 IRQ12 26 LA20
7 IRQ15 27 LA19
8 IRQ14 28 LA18
9 DACK0# 29 AL17
10 DRQ0 30 MEMR#
11 DACK5# 31 MEMW#
12 DRQ5 32 SD8
13 DACK6# 33 SD9
14 DRQ6 34 SD10
15 DACK7# 35 SD11
16 DRQ7 36 SD12
17 VCC 37 SD13
18 MASTER# 38 SD14
19 GND 39 SD15
20 GND 40 GND