307013-003 Datasheet, PDF (727/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

Intel® High Definition Audio Controller Registers (D27:F0)
19.1.49 L1DESC—Link 1 Description Register
(Intel^® High Definition Audio Controller—D27:F0)
Address Offset: 140h–143h
Default Value: 00000001h
Attribute:
Size:
RO
32 bits
Bit
Description
31:24
Target Port Number — RO. The Intel High Definition Audio controller targets the Intel^®
ICH7’s Port #0.
23:16
Target Component ID — RO. This field returns the value of the ESD.CID field of the chip
configuration section. ESD.CID is programmed by BIOS.
15:2 Reserved.
1 Link Type — RO. Hardwired to 0 indicating Type 0.
0 Link Valid — RO. Hardwired to 1.
19.1.50 L1ADDL—Link 1 Lower Address Register
(Intel^® High Definition Audio Controller—D27:F0)
Address Offset: 148h–14Bh
Attribute:
Default Value: See Register Description Size:
RO
32 bits
Bit
Description
31:14
Link 1 Lower Address — RO. Hardwired to match the RCBA register value in the PCI-LPC
bridge (D31:F0:F0h).
13:0 Reserved.
19.1.51 L1ADDU—Link 1 Upper Address Register
(Intel^® High Definition Audio Controller—D27:F0)
Address Offset: 14Ch–14Fh
Default Value: 00000000h
Attribute:
Size:
RO
32 bits
Bit
Description
31:0 Link 1 Upper Address — RO. Hardwired to 00000000h.
Intel ^® ICH7 Family Datasheet
727