IBM PC兼容机上的I/O地址分配

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