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Table 10. I/O Map (continued)
Address (hex) Size Description
0377, bits 6:0 7 bits Secondary IDE channel status port
0378 - 037F 8 bytes LPT 1
0388- 038B 6 bytes AdLib
†
(FM synthesizer)
03B0 – 03BB 4 bytes Intel 82810 – DC100 Graphics Controller Hub (GCH)
03C0 – 03DF 2 bytes Graphics Controller Hub (GCH)
03CC 1 byte Video (VGA)
03CE – 03CF 2 bytes Video (VGA)
03D4 – 03D5 2 bytes Video (VGA)
03DA 1 byte Video (VGA)
03E8 – 03EF 8 bytes COM3
03F0 - 03F5 6 bytes Diskette channel 1
03F6 1 byte Primary IDE channel command port
03F8 - 03FF 8 bytes COM1
One of these ranges:
0530 – 0537
0E80 – 0E87
0F40 – 0F47
8 bytes Windows Sound System
0800 – 087F Motherboard resources
9000 – 9FFF Intel 82810AA PCI bridge
LPTn + 400h 8 bytes ECP port, LPTn base address + 400h
0CF8 - 0CFB* 4 bytes PCI configuration address register
0CF9** 1 byte Turbo and reset control register
0CFC - 0CFF 4 bytes PCI configuration data register
EF00 – EF3F 64 bytes Windows Sound System
FFA0 - FFA7 8 bytes Primary bus master IDE registers
FFA8 - FFAF 8 bytes Secondary bus master IDE registers
32 contiguous bytes starting on a 32-byte
divisible boundary
Intel 82559 LAN controller
64 contiguous bytes starting on a 64-byte
divisible boundary
Onboard audio controller
* Dword access only
** Byte access only