82801FB Datasheet, PDF (464/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

SATA Controller Registers (D31:F2)
12.1.17 SID—Subsystem Identification Register (SATA–D31:F2)
Address Offset:
Default Value:
Lockable:
2Eh–2Fh
0000h
No
Attribute: R/WO
Size:
16 bits
Power Well: Core
Bit
Description
15:0 Subsystem ID (SID) — R/WO. Value is written by BIOS. No hardware action taken on this value.
12.1.18
CAP—Capabilities Pointer Register (SATA–D31:F2)
Address Offset: 34h
Default Value: 70h
Attribute:
Size:
RO
8 bits
Bit
Description
7:0
Capabilities Pointer (CAP_PTR) — RO. This field indicates that the first capability pointer offset is
70h, the PCI Power Management capability.
12.1.19
INT_LN—Interrupt Line Register (SATA–D31:F2)
Address Offset: 3Ch
Default Value:
00h
Attribute: R/W
Size:
8 bits
Bit
Description
7:0
Interrupt Line — R/W. This field is used to communicate to software the interrupt line that the
interrupt pin is connected to.
12.1.20
INT_PN—Interrupt Pin Register (SATA–D31:F2)
Address Offset: 3Dh
Default Value:
See Register Description
Attribute: RO
Size:
8 bits
Bit
Description
7:0
Interrupt Pin — RO. This reflects the value of D31IP.SIP (Chipset Configuration Registers:Offset
3100h:bits 11:8).
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Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet