MSI IMGS45M User Guide - Page 61

I/O Map, DMA Controller Registers

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I/O Map I/O Port 0000-000F 0020-0021 002E-002F 0040-0043 004E-004F 0060,0064 0070-0073 0080-0090 00A0-00A1 00B2-00B3 00C0-00DF 00F0-00FF 01F0-01F7 02E0-03E8 03F8-03FF 0400-045F 0500-050F 0CF8-0CFF Description DMA Controller 1 Interrupt Controller 1 SIO Port 1 System Timer SIO Port 2 Keyboard Controller RTC and CMOS DMA Controller Page Registers Interrupt Controller 2 APM Register DMA Controller 2 Numeric Data Processor Primary IDE Controller COM2, COM3, COM4, COM5 COM1 ACPI I/O Space SMBus I/O Space PCI Configuration Port MS-9871 4-9

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4-9
MS-9871
I/O Map
I/O Port
Description
0000-000F
DMA Controller 1
0020-0021
Interrupt Controller 1
002E-002F
SIO Port
1
0040-0043
System Timer
004E-004F
SIO Port 2
0060,0064
Keyboard Controller
0070-0073
RTC and CMOS
0080-0090
DMA Controller Page Registers
00A0-00A1
Interrupt Controller 2
00B2-00B3
APM Register
00C0-00DF
DMA Controller 2
00F0-00FF
Numeric Data Processor
01F0-01F7
Primary IDE Controller
02E0-03E8
COM2, COM3, COM4, COM5
03F8-03FF
COM1
0400-045F
ACPI I/O Space
0500-050F
SMBus I/O Space
0CF8-0CFF
PCI Configuration Port