82801BA Datasheet, PDF (395/498 Pages) Intel Corporation – Intel 82801BA I/O Controller Hub 2 (ICH2) and Intel 82801BAM I/O Controller Hub 2 Mobile

AC’97 Audio Controller Registers (D31:F5)
AC’97 Audio Controller Registers
(D31:F5)
13
13.1 AC’97 Audio PCI Configuration Space (D31:F5)
Note: Registers that are not shown should be treated as Reserved (See Section 6.2 for details).
Table 13-1. PCI Configuration Map (Audio—D31:F5)
Offset
00h–01h
02h–03h
04h–05h
06h–07h
08h
09h
0Ah
0Bh
0Eh
10h–13h
14h–17h
18h–2Bh
2Ch–2Dh
2Eh–2Fh
30h–3Bh
3Ch
3Dh
3Eh–FFh
Mnemonic
Register
VID
DID
PCICMD
PCISTS
RID
PI
SCC
BCC
HEDT
NAMBAR
NABMBAR
—
SVID
SID
—
INTR_LN
INTR_PN
—
Vendor Identification
Device Identification
PCI Command
PCI Device Status
Revision Identification
Programming Interface
Sub Class Code
Base Class Code
Header Type
Native Audio Mixer Base Address
Native Audio Bus Mastering Base Address
Reserved
Subsystem Vendor ID
Subsystem ID
Reserved
Interrupt Line
Interrupt Pin
Reserved
Default
8086h
2445h
0000
0280h
See Note
00
01h
04h
00
00000001h
00000001h
00h
0000h
0000h
—
00h
02h
—
Access
RO
RO
R/W
R/WC
RO
RO
RO
RO
RO
R/W
R/W
RO
Write-Once
Write-Once
—
R/W
RO
—
NOTE: Refer to the Specification Update for the value of the Revision ID Register
13.1.1
VID—Vendor Identification Register (Audio—D31:F5)
Offset:
Default Value:
Lockable:
01h-00h
8086h
No
Attribute:
Size:
Power Well:
RO
16 Bits
Core
Bit
Description
15:0 Vendor ID Value. This is a 16 bit value assigned to Intel
82801BA ICH2 and 82801BAM ICH2-M Datasheet
13-1