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Miscellaneous Technical Information
91
System I/O Address Map
Address Range
(hex)
Description
0000h - 000Fh Direct memory access controller.
0010h - 001Fh Motherboard resources.
0020h - 0021h Programmable interrupt controller.
0022h - 002Dh Motherboard resources.
002Eh - 002Fh Motherboard resources.
0030h - 003Fh Motherboard resources.
0040h - 0043h System timer.
0044h - 005Fh Motherboard resources.
0060h - 0060h Standard 101/102-Key or Microsoft Natural Keyboard.
0061h - 0061h System speaker.
0062h - 0063h Motherboard resources.
0064h - 0064h Standard 101/102-Key or Microsoft Natural Keyboard.
0065h - 006Fh Motherboard resources.
0070h - 0073h System CMOS/real time clock.
0074h - 007Fh Motherboard resources.
0080h - 0090h Direct memory access controller.
0091h - 0093h Motherboard resources.
0094h - 009Fh Direct memory access controller.
00A0h - 00A1h Programmable interrupt controller.
00A2h - 00BFh Motherboard resources.
00C0h - 00DFh Direct memory access controller.
00E0h - 00EFh Motherboard resources.
00F0h - 00FFh Numeric data processor.
0170h - 0177h Secondary IDE controller (dual FIFO).
0170h - 0177h Intel 82801AA bus master IDE controller.
01F0h - 01F7h Intel 82801AA bus master IDE controller.
01F0h - 01F7h Primary IDE controller (dual FIFO).
0200h - 0207h Gameport joystick.
0290h - 0297h Motherboard resources.
0330h - 0331h MPU-401-compatible MIDI device.
0376h - 0376h Secondary IDE controller (dual FIFO).
0376h - 0376h Intel 82801AA bus master IDE controller.
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