82801FB Datasheet, PDF (700/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

PCI Express* Configuration Registers
19.1.38
MD—Message Signaled Interrupt Message Data Register
(PCI Express—D28:F0/F1/F2/F3)
Address Offset: 88–89h
Default Value: 0000h
Attribute:
Size:
R/W
16 bits
Bit
Description
Data (DATA) — R/W. This 16-bit field is programmed by system software if MSI is enabled. Its
15:0 content is driven onto the lower word (PCI AD[15:0]) during the data phase of the MSI memory write
transaction.
19.1.39
SVCAP—Subsystem Vendor Capability Register
(PCI Express—D28:F0/F1/F2/F3)
Address Offset: 90–91h
Default Value: A00Dh
Attribute:
Size:
RO
16 bits
Bit
Description
15:8 Next Capability (NEXT) — RO. This field indicates the location of the next pointer in the list.
7:0
Capability Identifier (CID) — RO. Value of 0Dh indicates this is a PCI bridge subsystem vendor
capability.
19.1.40 SVID—Subsystem Vendor Identification Register
(PCI Express—D28:F0/F1/F2/F3)
Address Offset: 94–97h
Default Value: 00000000h
Attribute:
Size:
R/WO
32 bits
Bit
Description
31:16
Subsystem Identifier (SID) — R/WO. This field indicates the subsystem as identified by the vendor.
This field is write once and is locked down until a bridge reset occurs (not the PCI bus reset).
Subsystem Vendor Identifier (SVID) — R/WO. This field indicates the manufacturer of the
15:0 subsystem. This field is write once and is locked down until a bridge reset occurs (not the PCI bus
reset).
19.1.41 PMCAP—Power Management Capability Register
(PCI Express—D28:F0/F1/F2/F3)
Address Offset: A0–A1h
Default Value: 0001h
Attribute:
Size:
RO
16 bits
Bit
Description
15:8 Next Capability (NEXT) — RO. This field indicates this is the last item in the list.
7:0
Capability Identifier (CID) — RO. Value of 01h indicates this is a PCI power management
capability.
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Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet