System input/output addresses – IBM 2193 User Manual

Page 172

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A-4

IBM Personal Computer User Guide

System input/output addresses

This table shows the hexadecimal addresses for each of the system board Input/
Output (I/O) functions. You may want to use this information if you install an adapter
card that requires you to set I/O addresses.

Table 3: System input/output addresses

Address range

(hexadecimal)

Function

000-00F

DMA controller-1

020-021

Interrupt controller-1

040-043

System timer

060-060

Keyboard controller 8742

061-061

System Speaker

070-071

CMOS RAM Address and Real Time Clock

081-08F

DMA controller-2

0A0-0A1

Interrupt controller-2

0C0-0DF

DMA controller-2

0F0-0FF

Math Co-Processor

170-177

Secondary IDE

1F0-1F7

Primary IDE

200-207

Game Port

278-27F

Parallel Printer Port 2

2F8-2FF

Serial Asynchronous Port 2

378-37F

Parallel Printer Port 1

3F0-3F5

Floppy Disk Controller

3F6-3F6

Secondary EIDE

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