Format of PCI Configuration Data for Intel 82371AB (PIIX4), USB Controller |
| Offset | Size | Description | ||||||
|---|---|---|---|---|---|---|---|---|
|
00h |
64 BYTEs |
header (see #00878) (vendor ID 8086h, device ID 7112h) | ||||||
|
20h |
DWORD |
I/O base address (for 32 contiguous PORTs) | ||||||
| ??? | ||||||||
|
40h |
32 BYTEs |
reserved | ||||||
|
60h |
BYTE |
USB specification release number
|
||||||
|
61h |
95 BYTEs |
reserved | ||||||
|
C0h |
WORD |
legacy support | ||||||
|
C2h |
61 BYTEs |
reserved | ||||||
|
FFh |
BYTE |
miscellaneous support | ||||||
|
See Also: |