307013-003 Datasheet, PDF (713/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

Intel® High Definition Audio Controller Registers (D27:F0)
19.1.16 CAPPTR—Capabilities Pointer Register (Audio—D30:F2)
Address Offset: 34h
Default Value: 50h
Attribute:
Size:
RO
8 bits
This register indicates the offset for the capability pointer.
Bit
Description
7:0
Capabilities Pointer (CAP_PTR) — RO. This field indicates that the first capability pointer
offset is offset 50h (Power Management Capability)
19.1.17 INTLN—Interrupt Line Register
(Intel^® High Definition Audio Controller—D27:F0)
Address Offset: 3Ch
Default Value: 00h
Attribute:
Size:
R/W
8 bits
Bit
Description
7:0
Interrupt Line (INT_LN) — R/W. This data is not used by the Intel^® ICH7. It is used
to communicate to software the interrupt line that the interrupt pin is connected to.
19.1.18 INTPN—Interrupt Pin Register
(Intel^® High Definition Audio Controller—D27:F0)
Address Offset: 3Dh
Default Value: See Description
Attribute:
Size:
RO
8 bits
Bit
Description
7:4 Reserved.
Interrupt Pin — RO. This reflects the value of D27IP.ZIP (Chipset Config
3:0 Registers:Offset 3110h:
bits 3:0).
Intel ^® ICH7 Family Datasheet
713