IBM PC兼容机上的I/O地址分配

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我是靠谱客的博主暴躁棒球，这篇文章主要介绍IBM PC兼容机上的I/O地址分配，现在分享给大家，希望可以做个参考。

Common I/O Base Address Device Assignments in IBM PC compatible computers

Base Address	Device
00 - 1f	First DMA Controller 8237 A-5
20 - 3f	First Interrupt Controller 8259A, Master
40 - 5f	8254-2 System Timer
60 - 6f	8042, Keyboard
70 - 7f	Real Time Clock, NMI mask
80 - 9f	DMA Page Register, 74LS612
87	DMA Channel 0
83	DMA Channel 1
81	DMA Channel 2
82	DMA Channel 3
8b	DMA Channel 5
89	DMA Channel 6
8a	DMA Channel 7
8f	Refresh
a0 - bf	Second Interrupt Controller 8259A, Slave
c0 - df	Second DMA Controller 8237 A-5
f0	Clear 80287 Busy
f1	Reset 80287
f8 - ff	80287 Math coprocessor
0f0 - 0f5	PCjr Disk Controller
0f8 - 0ff	Reserved for future microprocessor extensions
100 - 10f	POS Programmable Option Select (PS/2)
110 - 1ef	System I/O channel
140 - 15f	Secondary SCSI host adapter
170 - 177	Secondary Parallel ATA Disk Controller
1f0 - 1f7	Primary Parallel ATA Hard Disk Controller
200 - 20f	Game port
210 - 217	Expansion Unit
220 - 233	Sound Blaster and most other sound cards
278 - 27f	LPT2 parallel port
280 - 29f	LCD on Wyse 2108 PC SMC Elite default factory setting
2b0 - 2df	Alternate Enhanced Graphics Adapter (EGA) display control
2e8 - 2ef	COM4 serial port
2e1	GPIB/IEEE-488 Adapter 0
2f8 - 2ff	COM2 serial port
2e2 - 2e3	Data acquisition
300 - 31f	Prototype Card
300 - 31f	Novell NE1000 compatible Ethernet network interfaces
320 - 323	ST-506 and compatible hard disk drive interface
330 - 331	MPU-401 UART on most sound cards
340 - 35f	Primary SCSI host adapter
370 - 377	Secondary floppy disk drive controller
378 - 37f	LPT1 parallel port
380 - 38c	Secondary Binary Synchronous Data Link Control (SDLC) adapter
388 - 389	AdLib Music Synthesizer Card
3a0 - 3a9	Primary Binary Synchronous Data Link Control (SDLC) adapter
3b0 - 3bb	Monochrome Display Adapter (MDA) display control
3bc - 3bf	MDA LPT parallel port
3c0 - 3cf	Enhanced Graphics Adapter (EGA) display control
3d0 - 3df	Color Graphics Adapter (CGA)
3e8 - 3ef	COM3 serial port
3f0 - 3f7	Primary floppy disk drive controller
3f8 - 3ff	COM1 serial port