Host-PCI Express* Graphics Bridge Registers (D1:F0)
R
130 Intel
®
82925X/82925XE MCH Datasheet
8.1.25 SS_CAPID—Subsystem ID and Vendor ID Capabilities
(D1:F0)
PCI Device: 1
Address Offset: 88h
Default Value: 0000800Dh
Access: RO
Size: 32 bits
This capability is used to uniquely identify the subsystem where the PCI device resides. Because
this device is an integrated part of the system and not an add-in device, it is anticipated that this
capability will never be used. However, it is necessary because Microsoft will test for its
presence.
Bit Access &
Default
Description
31:16 Reserved
15:8 RO
80h
Pointer to Next Capability: This field contains a pointer to the next item in the
capabilities list which is the PCI Power Management capability.
7:0 RO
0D h
Capability ID: A value of 0Dh identifies this linked list item (capability structure)
as being for SSID/SSVID registers in a PCI-to-PCI Bridge.
8.1.26 SS—Subsystem ID and Subsystem Vendor ID (D1:F0)
PCI Device: 1
Address Offset: 8Ch
Default Value: 00008086h
Access: RO
Size: 32 bits
System BIOS can be used as the mechanism for loading the SSID/SVID values. These values
must be preserved through power management transitions and hardware reset.
Bit Access &
Default
Description
31:16 R/WO
0000h
Subsystem ID (SSID): This field identifies the particular subsystem and is
assigned by the vendor.
15:0 R/WO
8086h
Subsystem Vendor ID (SSVID): This field identifies the manufacturer of the
subsystem and is the same as the vendor ID that is assigned by the PCI Special
Interest Group.