Hub Datasheet

52 Intel
®
E7505 Chipset MCH Datasheet
Register Description
3.5.11 SVID—Subsystem Vendor Identification Register (D0:F0)
Address Offset: 2C–2Dh
Default Value: 0000h
Attribute: R/WO
Size: 16 bits
This value is used to identify the vendor of the subsystem.
3.5.12 SID—Subsystem Identification Register (D0:F0)
Address Offset: 2E–2Fh
Default Value: 0000h
Attribute: R/WO
Size: 16 bits
This value is used to identify a particular subsystem.
3.5.13 CAPPTR—Capabilities Pointer Register (D0:F0)
Address Offset: 34h
Default Value: 40h
Attribute: RO
Size: 8 bits
The CAPPTR provides the offset that is the pointer to the location where the first set of capabilities
registers are located. Read by drivers.
Bits
Default,
Access
Description
15:0
0000h
R/WO
Subsystem Vendor ID (SUBVID). This field should be programmed during boot-up to
indicate the vendor of the system board. After it has been written once, it becomes read
only.
Bits
Default,
Access
Description
15:0
0000h
R/WO
Subsystem ID (SUBID). This field should be programmed during BIOS initialization.
After it has been written once, it becomes read only.
Bits
Default,
Access
Description
7:0
40h
RO
First capability ID Pointer. This field points to the offset of the first capability ID register
block. In this case the first capability is the Product_Specific Capability, which is located
at offset 40h.