I/O port addresses

Notes

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Word:

Address	Device	Use
000-01F	DMA controller	System
020-03F	Interrupt controller	System
040-05F	Timer/Counter	System
060-06F	Keyboard Controller	System
070-07F	Real-time clock, NMI mask	System
080-09F	DMA page register	System
0A0-0BF	Interrupt controller	System
0F0	Clear math coprocessor busy	System
0F1	Reset math coprocessor	System
0F8-0FF	Math coprocessor	System
170-177	Second IDE controller	I/O
1F0-1F7	First IDE controller	I/O
200-207	Game port	I/O
278-27F	Parellel printer port #2	I/O
2F8-2FF	Serial port #2	I/O
378-37F	Parallel printer port #1	I/O
3B0-3BF	MGA/first printer port	I/O
3D0-3DF	CGA	I/O
3F0-3F7	FDD Controller	I/O
3F8-3FF	Serial port #1	I/O
FF80-FF9F	USB controller	I/O