| Hex Address |
Motherboard and Chip Set Port Addresses |
| 000-000F |
Chip set 8237 - DMA 1 |
| 0020-0021 |
Chip set 8259 Programmable interrupt controller IC #1 |
| 002E-002F |
Super I/O Controller configuration registers |
| 0040-0043 |
Chip set System Timer IC #1 |
| 0048-004B |
Chip set System Timer IC #2 |
| 0060 |
Keyboard/mouse controller IC |
| 0061 |
Chip set NMI, speaker control |
| 0064 |
Keyboard/mouse controller IC |
| 0070-0071 |
RTC port and NMI mask port |
| 0078-0079 |
Reserved |
| 0080-008F |
Chip set DMA page registers |
| 00A0-00A1 |
Chip set 8259 Programmable interrupt controller IC #2 |
| 00B2 |
APM control port |
| 00B3 |
APM status port |
| 00C0-00DE |
Chip set 8237 - DMA 2 |
| 00F0 |
Math coprocessor reset numeric error |
|
|
| Hex Address |
Bus-Based Device Port Addresses |
| 0130-0133 |
Adaptec SCSI adapter (alternate) |
| 0134-0137 |
Adaptec SCSI adapter (alternate) |
| 0168-016F |
Fourth IDE interface |
| 0170-0177 |
Secondary IDE interface |
| 01E8-01EF |
Third IDE interface |
| 01F0-01F7 |
Primary IDE / AT hard disk controller |
| 0200-0207 |
Game port or joystick adapter |
| 0210-0217 |
IBM XT expansion chassis |
| 0220-0233 |
Creative labs sound blaster 16 audio (default) |
| 0230-0233 |
Adaptec SCSI adapter (alternate) |
| 0234-0237 |
Adaptec SCSI adapter (alternate) |
| 0238-023B |
MS bus mouse (alternate) |
| 023C-023F |
MS bus mouse (default) |
| 0240-024F |
SMC Ethernet adapter (default) |
| 0240-0253 |
Creative labs sound blaster 16 audio (alternative) |
| 0258-025F |
Intel above board |
| 0260-026F |
SMC Ethernet adapter (alternate) |
| 0260-0273 |
Creative labs sound blaster 16 audio (alternate) |
| 0270-0273 |
Plug and play I/O read ports |
| 0278-027F |
Parallel port 2 (LPT2) |
| 0280-028F |
SMC Ethernet adapter (alternate) |
| 0280-0293 |
Creative labs sound blaster 16 audio (alternate) |
| 02A0-02AF |
SMC Ethernet adapter (alternate) |
| 02C0-02CF |
SMC Ethernet adapter (alternate) |
| 02E0-02EF |
SMC Ethernet adapter (alternate) |
| 02E8-02EF |
Serial port 4 (COM4) |
| 02EC-02EF |
Video, 8514 or ATI standard ports |
| 02F8-02FF |
Serial port 2 (COM2) |
| 0300-0301 |
MPU-401 MIDI port (secondary) |
| 0300-030F |
SMC Ethernet adapter (alternate) |
| 0320-0323 |
XT hard disk controller |
| 0320-032F |
SMC Ethernet adapter (alternate) |
| 0330-0331 |
MPU-401 MIDI port (secondary) |
| 0330-0333 |
Adaptec SCSI adapter (default) |
| 0334-0337 |
Adaptec SCSI adapter (alternate) |
| 0340-034F |
SMC Ethernet adapter (alternate) |
| 0360-036F |
SMC Ethernet adapter (alternate) |
| 0366 |
Fourth IDE command port |
| 0367 |
Fourth IDE status port |
| 0370-0375 |
Secondary floppy controller |
| 0376 |
Secondary IDE command port |
| 0377 |
Secondary IDE status port/floppy controller |
| 0378-037F |
Parallel port 1 (LPT1) |
| 0380-038F |
SMC Ethernet adapter (alternate) |
| 0388-038B |
Audio - FM synthesizer |
| 03B0-03BB |
Video, Monochrome/EGA/VGA standard ports |
| 03BC-03BF |
Parallel port 1 (LPT1) or Parallel port 3 (LPT3) |
| 03C0-03CF |
Video and EGA/VGA standard ports |
| 03D0-03DF |
Video and CGA/EGA/VGA standard ports |
| 03E6 |
Third IDE command port |
| 03E7 |
Third IDE status port |
| 30E8-03EF |
Serial port 3 (COM3) |
| 03F0-30F7 |
Primary floppy disk controller ports |
| 03F8-03FF |
Serial port 1 (COM1) |
| 04D0-04D1 |
Edge/level triggered PI interrupt controller |
| 0530-0537 |
Windows sound system (default) |
| 0604-060B |
Windows sound system (alternate) |
| 0678-067F |
LPT2 in ECP mode |
| 0778-077F |
LPT1 in ECP mode |
| 0A20-0A23 |
IBM token ring adapter (default) |
| 0A24-0A27 |
IBM token ring adapter (alternate) |
| 0CF8-0CFB |
PCI configuration address registers |
| 0CF9 |
Turbo and reset control register |
| 0CFC-0CFF |
PCI configuration data registers |
| FF00-FF07 |
IDE bus master registers |
| FF80-FF9F |
Universal serial bus |
| FFA0-FFA7 |
Primary bus master IDE registers |
| FFA8-FFAF |
Secondary bus master IDE registers |
