I/O Map - Intel Motherboard Raptor AT Installation Manual

Raptor AT – Installation Guide

I/O Map

Address (hex)
0000-000F
0020-0021
0040
0041
0042
0043
0060
0061
0070, bit 7
0070, bits 6:0
0071
0072
0073
0080-008F
0092
00A0-00A1
00B2-00B3
00C0-00DE
00F0
0110
0170 _ 0177
01F0 _ 01F7
029x
0278-027F
02E8-02EF
02F8-02FF
0310
0376
0377
0377, bit 7
0377, bits 6:0
0378-037F
03B4-03B5
03BA
03BC-03CD
03C0-03CA
03CC
03CE-03CF
44
Description
DMA 1
Interrupt Controller 1
Timer/Counter 0
Timer/Counter 1
Timer/Counter 2
Timer Control Word
Keyboard Controller Byte _ Reset IRQ
NMI Status and Control
NMI enable
RTC Index
RTC Data
RTC Extended Index
RTC Extended Data
DMA page registers / POST code display also
located at 0080h
Port 92
Interrupt Controller 2
APM control
DMA 2
Coprocessor Error
Watch-Dog Timer (default)
Secondary IDE channel
Primary IDE channel
LM79
LPT2 (if selected)
COM4 (if selected)
COM2 (default)
Watch-Dog Timer (if selected)
Secondary IDE channel command port
Floppy channel 2 command
Floppy disk change, channel 2
Secondary IDE channel status port
LPT1 (default)
Video (VGA)
Video (VGA)
LPT3 (if selected)
Video (VGA)
Video (VGA)
Video (VGA)