MSI IM-GME965 User Manual

Page 76

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MS-9821 Mainboard

4-10

I/O Map

I/O Port

Description

0000-000F

DMA Controller 1

0020-0021

Interrupt Controller 1

002E-002F

SIO Port

0040-0043

System Timer

004E-004F

TPM Port

0060, 0064

Keyboard Controller

0070-0073

RTC and CMOS

0080-0090

DMA Controller Page Registers

0092

Port 92h

00A0-00A1

Interrupt Controller 2

00B2-00B3

APM Register

00C0-00DF DMA Controller 2
00F0-00FF

Numeric Data Processor

01F0-01F7

Primary IDE Controller

02F8-02FF

COM2

0376

Secondary IDE Controller

0378-037F

LPT1

03F6

Primary IDE Controller

03F8-03FF

COM1

0400-045F

ACPI I/O Space

0500-050F

SMBus I/O Space

0CF8-0CFF PCI Configuration Port

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