C.1 io address map – IEI Integration IEM-LX v1.10 User Manual

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IEM-LX-800 ETX CPU Module

Page 126

C.1 IO Address Map

I/O address

Range

Description

000-01F

DMA Controller

020-021

Interrupt Controller

040-043

System time

060-06F

Keyboard Controller

070-07F

System CMOS/Real time Clock

080-09F

DMA Controller

0A0-0A1

Interrupt Controller

0C0-0DF

DMA Controller

0F0-0FF

Numeric data processor

1F0-1F7

Primary IDE Channel

2F8-2FF

Serial Port 2 (COM2)

378-37F

Parallel Printer Port 1 (LPT1)

3B0-3BB

AMD Graphics Controller

3C0-3DF

AMD Graphics Controller

3F6-3F6

Primary IDE Channel

3F7-3F7

Standard floppy disk controller

3F8-3FF

Serial Port 1 (COM1)

Table C-1: IO Address Map

C.2 1st MB Memory Address Map

Memory address

Description

00000-9FFFF

System memory

A0000-BFFFF

VGA buffer

F0000-FFFFF

System BIOS

1000000-

Extend BIOS

Table C-2: 1

st

MB Memory Address Map

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