82801BA Datasheet, PDF (367/498 Pages) Intel Corporation – Intel 82801BA I/O Controller Hub 2 (ICH2) and Intel 82801BAM I/O Controller Hub 2 Mobile

USB Controller Registers
USB Controller Registers
11
11.1 PCI Configuration Registers (D31:F2/F4)
Note: Registers that are not shown should be treated as Reserved (See Section 6.2 for details).
Table 11-1. PCI Configuration Map (USB—D31:F2/F4)
Offset
Mnemonic
Register Name/Function
00–01h
02–03h
04–05h
06–07h
08h
09h
0Ah
0Bh
0Eh
20–23h
2C–2Dh
2E–2Fh
3Ch
3Dh
60h
C0–C1h
C4h
VID
Vendor ID
DID
Device ID
CMD
Command Register
STA
Device Status
RID
Revision ID
PI
Programming Interface
SCC
Sub Class Code
BCC
Base Class Code
HTYPE
Header Type
Base
Base Address Register
SVID
Subsystem Vendor ID
SID
Subsystem ID
INTR_LN Interrupt Line
INTR_PN Interrupt Pin
SB_RELNUM Serial Bus Release Number
USB_LEGKEY
USB Legacy Keyboard/
Mouse Control
USB_RES USB Resume Enable
Function 2
Default
8086h
2442h
0000h
0280h
See Note
00h
03h
0Ch
00h
00000001h
00
00
00h
03h
10h
2000h
00h
Function 4
Default
8086h
2444h
0000h
0280h
See Note
00h
03h
0Ch
00h
00000001h
00
00
00h
03h
10h
2000h
00h
Type
RO
RO
R/W
R/W
RO
RO
RO
RO
RO
R/W
RO
RO
R/W
RO
RO
R/W
R/W
NOTE: Refer to the Specification Update for the value of the Revision ID Register.
11.1.1
VID—Vendor Identification Register (USB—D31:F2/F4)
Address Offset:
Default Value:
00–01h
8086h
Attribute:
Size:
RO
16 bits
Bit
Description
15:0 Vendor ID Value—RO. This is a 16-bit value assigned to Intel.
82801BA ICH2 and 82801BAM ICH2-M Datasheet
11-1