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C.1 io address map – IEI Integration ROCKY-3786 v4.0 User Manual

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152

IEI

®

Technology, Corp.

C.1 IO Address Map

I/O address

Range

Description

000-01F DMA

Controller

020-021 Interrupt

Controller

040-05F 8254

timer

060-06F Keyboard

Controller

070-07F

NMI Mask/Real time Clock

080-09F DMA

Controller

0A0-0BF Interrupt

Controller

0C0-0DF DMA

Controller

0F0-0FF Numeric

data

processor

1F0-1F8 Fixed

Disk

2F8-2FF Serial

Port

2

(COM2)

378-37F

Parallel Printer Port 1 (LPT1)

3C0-3CF Reserved

3D0-3DF Color/Graphics

Monitor

Adapter

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