Intel BX80605I7870 Data Sheet - Page 38
HDR - Header Type Register, SID/SVID - Subsystem Identity/Subsystem Vendor, Identification Register
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Register Description 2.5.5 2.5.6 HDR - Header Type Register This register identifies the header layout of the configuration space. Device: Function: Offset: 0 0-1 0Eh Device: Function: Offset: 2 0-1, 4-5 0Eh Device: Function: Offset: 3 0-2, 4 0Eh Device: Function: Offset: 4-6 0-3 0Eh Bit Type Reset Value Description 7 RO 6:0 RO Multi-function Device 1 Selects whether this is a multi-function device, that may have alternative configuration layouts. This bit is hardwired to 1 for devices in the processor. Configuration Layout 0 This field identifies the format of the configuration header layout for a PCI-toPCI bridge from bytes 10h through 3Fh. For all devices the default is 00h, indicating a conventional type 00h PCI header. SID/SVID - Subsystem Identity/Subsystem Vendor Identification Register This register identifies the manufacturer of the system. This 32-bit register uniquely identifies any PCI device. Device: Function: Offset: 0 0-1 2Ch, 2Eh Device: Function: Offset: 2 0-1, 4-5 2Ch, 2Eh Device: Function: Offset: 3 0-2, 4 2Ch, 2Eh Device: Function: Offset: 4-6 0-3 2Ch, 2Eh Access as a Dword Bit 31:16 15:0 Type RWO RWO Reset Value Description Subsystem Identification Number 8086h The default value specifies Intel Vendor Identification Number 8086h The default value specifies Intel. 38 Datasheet
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