System i/o address map – Sony PCV-L400 User Manual

Page 94

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VAIO Computer Reference Manual

86

System I/O Address Map

Address Range
(hex)

Description

0000 - 000F

DMA controller 1

0020 - 0021

Programmable interrupt controller 1

002E - 002F

Super I/O controller configuration registers

0040 - 0043

Counter/timer 1

0048 - 004B

Counter/timer 2

0060

Keyboard controller byte - reset IRQ

0061

NMI status and speaker controller

0064

Keyboard controller, CMD/STAT byte

0070 (bit 7)

Enable NMI

0070 (bits 6:0)

Real time clock, address

0071

Real time clock, data

0078

Reserved for system board configuration

0079

Reserved for system board configuration

0080 - 008F

DMA page registers

00A0 - 00A1

Programmable interrupt controller 2

00C0 - 00DE

DMA controller 2

00F0

Clear numeric data processor error

0170 - 0177

Secondary IDE controller

01F0 - 01F7

Primary IDE controller

0201

Audio/game port controller

0220-022F

Sound port (Sound Blaster compatible)

0228 - 022F

LPT3

0240 - 024F

Sound port (Sound Blaster compatible)

0278 - 027F

LPT2

0290 - 0297

Management extension hardware

02E8 - 02EF

COM4/Video (8514A)

02F8 - 02FF

COM2

0300 - 0301

MPU-401 (MIDI)

0330 - 0331

MPU-401 (MIDI)

0330 - 0333

MPU-401 (MIDI)

0334 - 0335

MPU-401 (MIDI)

0376

Secondary IDE controller command port

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