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Appendix B I/O Information

IO Address Map

I/O address Range

Description

000-01F

DMA Controller #1

020-021

Interrupt Controller #1, Master

040-05F 8254

timer

060-06F

8042 (Keyboard Controller)

070-07F

Real time Clock, NMI Mask

080-09F DMA

Page

0A0-0BF

Interrupt Controller #2

0C0-0DF

DMA Controller #2

0F0

Clear Math Coprocessor Busy

0F1 Reset

Math

Coprocessor

0F8-0FF Math

Coprocessor

1F0-1F8 Fixed

Disk

200-207 Game

I/O

278-27F

Parallel Printer Port 2 (LPT3)

2E8-2EF Serial

Port

2F8-2FF Serial

Port

300-31F Prototype

Card

360-36F Reserved

378-37F

Parallel Printer Port 1 (LPT2)

3B0-3BF

Monochrome Display and Printer Adapter (LPT1)

3C0-3CF Reserved

3D0-3DF Color/Graphics

Monitor

Adapter

3E8-3EF Serial

Port

3F0-3F7 Diskette

Controller

3F8-3FF Serial

Port

443

Watchdog timer enable

843 or 043

Watchdog timer disable

Содержание WAFER-4821

Страница 2: ...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...

Страница 3: ...12 2 10 Realtek8019AS Setting 12 3 Connection 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 Externa...

Страница 4: ...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 Informat...

Страница 5: ...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 outstandin...

Страница 6: ...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 o...

Страница 7: ...ity 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 Bo...

Страница 8: ...ut 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...

Страница 9: ...ing 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 cir...

Страница 10: ...n 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...

Страница 11: ...2V 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...

Страница 12: ...rt2 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...

Страница 13: ...r 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...

Страница 14: ...g 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 1...

Страница 15: ...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...

Страница 16: ...tailed 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 G...

Страница 17: ...R 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 CN...

Страница 18: ...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 po...

Страница 19: ...ED 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 Des...

Страница 20: ...ndors 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...

Страница 21: ...9 SD0 41 12V 10 IOCHRDY 42 GND 11 AEN 43 SMEMW 12 LA19 44 SMEMR 13 LA18 45 IOW 14 LA17 46 IOR 15 SA16 47 DACK3 16 SA15 48 DRQ3 17 SA14 49 DACK1 18 SA13 50 DRQ1 19 SA12 51 REFRESH 20 SA11 52 SYSCLK 21...

Страница 22: ...IR model in BIOS Peripheral Setup COM4 Then the normal RS 232 COM4 will be disabled CN9 IR Connector PIN Description 1 VCC 2 N C 3 IR RX 4 GND 5 IR TX 1 10 LAN RJ45 Connector WAFER 4821 built in RJ45...

Страница 23: ...y we design 4 bit digital inputs and 4 bit digital outputs on the WAFER 4821 Digital Input and Output generally are control signals You can use these signals to control external devices that needs On...

Страница 24: ...n you turn on the power button the BIOS will enter the Power On Self Test routines These routines will be executed for system test and initialization and system configuration verification Note for you...

Страница 25: ...or Enter button on your keyboard to select one of the fields Months Date or Year then press either PgUp or PgDn to set it to the current Months Date and Year Do the same steps for Time setting For IDE...

Страница 26: ...test all system memory when it boots up It will spend about 40 seconds until it receives a Ready signal from the HDD It will also wait for you to press the Del key or not 1st 2nd 3rd Boot Device To d...

Страница 27: ...Keyboard To testify whether or not a keyboard is attached to the computer Primary Display To define the type of display monitor of the system The Absent option is for network file servers Password Che...

Страница 28: ...OnBoard IDE to define the on board Integrated Drive Electronics controller channel s to be used Available options are Primary Secondary and Disabled OnBoard FDC The floppy disk drive controller can be...

Страница 29: ...The options are Auto Disable 3BC 378 or 278 You can set the I O address of the parallel port or disable it IrDA Protocol To specify the function mode if an IrDA mode is selected Parallel Port Mode WA...

Страница 30: ...sets a password that is used to protect your system and Setup Utility Supervisor Password has higher priority than User Password Once you setup the password the system will always ask you to key in p...

Страница 31: ...e best performance Whenever your CMOS RAM is damaged this optimal setting will be loaded automatically 4 9 Auto Configuration with Fail Safe Settings This option lets you load the Fail Safe default se...

Страница 32: ...ant to save them into the CMOS Just simply press Enter key and all the configuration changes will be saved 4 11 Exit Without Saving Select this option if you want to exit the Setup without saving the...

Страница 33: ...hdog Timer 843 043 hex Read Disable the Watchdog Timer To enable the Watchdog Timer user has to define Timer before enable the Watchdog Timer function The output data is a value of time interval and t...

Страница 34: ...ng a program it is necessary to disable the Watch Dog Timer otherwise the system will reset Example program TIMER_PORT 443H TIMER_START 443H TIMER_STOP 843H INITIAL TIME PERIOD COUNTER MOV DX TIME_POR...

Страница 35: ...ear Math Coprocessor Busy 0F1 Reset Math Coprocessor 0F8 0FF Math Coprocessor 1F0 1F8 Fixed Disk 200 207 Game I O 278 27F Parallel Printer Port 2 LPT3 2E8 2EF Serial Port 4 2F8 2FF Serial Port 2 300 3...

Страница 36: ...Mapping Chart IRQ0 System Timer IRQ8 RTC Clock IRQ1 Keyboard IRQ9 Unused IRQ2 Cascade to IRQ Controller IRQ10 COM4 IRQ3 COM2 IRQ11 COM3 IRQ4 COM1 IRQ12 PS 2 mouse IRQ5 Unused IRQ13 FPU IRQ6 FDC IRQ14...

Страница 37: ...Name 1 GND 6 VCC 2 DO3 7 DO2 3 DO1 8 DO0 4 DIN3 9 DIN2 5 DIN1 10 DIN0 Below is the specifications of WAFER 4821 Digital I O Digital Input Output channels 4 bits TTL Devices compatible Digital Logic l...

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