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Table 29. I/O Map (continued)
Address (hex) Size Description
03F0 - 03F5 6 bytes Diskette channel 1
03F6 1 byte Primary IDE channel command port
03F8 - 03FF 8 bytes COM1
04D0 - 04D1 2 bytes Edge / level triggered PIC
One of these ranges:
0530 - 0537
0E80 - 0E87
0F40 - 0F47
8 bytes Windows Sound System
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
FFA0 - FFA7 8 bytes Primary bus master IDE registers
FFA8 - FFAF 8 bytes Secondary bus master IDE registers
96 contiguous bytes
starting on a 128-byte
divisible boundary
ICH (ACPI + TCO)
64 contiguous bytes
starting on a 64-byte
divisible boundary
D815EEA desktop board resource
64 contiguous bytes
starting on a 64-byte
divisible boundary
Onboard audio controller
32 contiguous bytes
starting on a 32-byte
divisible boundary
ICH2 (USB#1)
32 contiguous bytes
starting on a 32-byte
divisible boundary
ICH2 (USB#2)
16 contiguous bytes
starting on a 16-byte
divisible boundary
ICH2 (SMBus)
64 contiguous bytes
starting on a 64-byte
divisible boundary
ICH2 modem controller
32 contiguous bytes
starting on a 32-byte
divisible boundary
ICH2 audio mixer
64 contiguous bytes
starting on a 64-byte
divisible boundary
ICH2 LAN controller
4096 contiguous bytes
starting on a
4096-byte divisible
boundary
Intel 82801BA PCI bridge
* Default, but can be changed to another address range.
** Dword access only.
*** Byte access only.