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Register Index
A-6
82801AA and 82801AB Datasheet
Vendor Identification
00h–01h
Section 12.1.1, “VID—Vendor Identification Register
(Audio—D31:F5)” on page 12-2
Section 12.1.2, “DID—Device Identification Register
(Audio—D31:F5)” on page 12-2
Section 12.1.3, “PCICMD—PCI Command Register
(Audio—D31:F5)” on page 12-2
Section 12.1.4, “PCISTA—PCI Device Status Register
(Audio—D31:F5)” on page 12-3
Section 12.1.5, “RID—Revision Identification Register
(Audio—D31:F5)” on page 12-3
Section 12.1.6, “PI—Programming Interface Register
(Audio—D31:F5)” on page 12-3
Section 12.1.7, “SCC—Sub Class Code Register
(Audio—D31:F5)” on page 12-4
Section 12.1.8, “BCC—Base Class Code Register
(Audio—D31:F5)” on page 12-4
Section 12.1.9, “HEADTYP—Header Type Register
(Audio—D31:F5)” on page 12-4
Section 12.1.10, “NAMBAR—Native Audio Mixer Base
Address Register (Audio—D31:F5)” on page 12-5
Section 12.1.11, “NABMBAR—Native Audio Bus
Mastering Base Address Register (Audio—D31:F5)” on
page 12-5
Section 12.1.12, “SVID—Subsystem Vendor ID Register
(Audio—D31:F5)” on page 12-6
Section 12.1.13, “SID—Subsystem ID Register (Audio—
D31:F5)” on page 12-6
Section 12.1.14, “INTR_LN—Interrupt Line Register
(Audio—D31:F5)” on page 12-6
Section 12.1.15, “INTR_PN—Interrupt Pin Register
(Audio—D31:F5)” on page 12-7
Device Identification
02h–03h
PCI Command
04h–05h
PCI Device Status
06h–07h
Revision Identification
08h
Programming Interface
09h
Sub Class Code
0Ah
Base Class Code
0Bh
Header Type
0Eh
Native Audio Mixer Base Address
10h–13h
Native Audio Bus Mastering Base
Address
14h–17h
Subsystem Vendor ID
2Ch–2Dh
Subsystem ID
2Eh–2Fh
Interrupt Line
3Ch
Interrupt Pin
3Dh
AC’97 Modem Controller (D31:F6)
Vendor Identification
00h–01h
Section 13.1.1, “VID—Vendor Identification Register
(Modem—D31:F6)” on page 13-2
Section 13.1.2, “DID—Device Identification Register
(Modem—D31:F6)” on page 13-2
Section 13.1.3, “PCICMD—PCI Command Register
(Modem—D31:F6)” on page 13-2
Section 13.1.4, “PCISTA—Device Status Register
(Modem—D31:F6)” on page 13-3
Section 13.1.5, “RID—Revision Identification Register
(Modem—D31:F6)” on page 13-3
Section 13.1.6, “PI—Programming Interface Register
(Modem—D31:F6)” on page 13-3
Section 13.1.7, “SCC—Sub Class Code Register
(Modem—D31:F6)” on page 13-4
Section 13.1.8, “BCC—Base Class Code Register
(Modem—D31:F6)” on page 13-4
Section 13.1.9, “HEDTYP—Header Type Register
(Modem—D31:F6)” on page 13-4
Section 13.1.10, “MMBAR—Modem Mixer Base
Address Register (Modem—D31:F6)” on page 13-5
Device Identification
02h–03h
PCI Command
04h–05h
PCI Device Status
06h–07h
Revision Identification
08h
Programming Interface
09h
Sub Class Code
0Ah
Base Class Code
0Bh
Header Type
0Eh
Modem Mixer Base Address
10h–13h
Table A-1. ICH PCI Configuration Registers (Sheet 6 of 7)
Register Name
Offset
Datasheet Section and Location