Intel® 865G/865GV Chipset Datasheet - download.intel.nl - Intel

Register Description3.7.13 SVID2—Subsystem Vendor Identification Register(Device 2)Address Offset:Default Value:Access:Size:2C–2Dh0000hR/WO16 bitBit15:0DescriptionSubsystem Vendor ID—R/WO. This value is used to identify the vendor of the subsystem. Thisregister should be programmed by BIOS during boot-up. Once written, this register becomes readonly. This register can only be cleared by a Reset.3.7.14 SID2—Subsystem Identification Register (Device 2)Address Offset:Default Value:Access:Size:2E−2Fh0000hR/WO16 bitsBit15:0DescriptionSubsystem Identification—R/WO. This value is used to identify a particular subsystem. This fieldshould be programmed by BIOS during boot-up. Once written, this register becomes read only. Thisregister can only be cleared by a Reset.3.7.15 ROMADR—Video BIOS ROM Base Address Registers(Device 2)Address Offset:Default Value:Access:Size:30−33h00000000hRO32 bitsThe IGD does not use a separate BIOS ROM; therefore, this register is hardwired to zeros.BitDescription31:18 ROM Base Address—RO. Hardwired to 0s.17:11 Address Mask⎯RO. Hardwired to 0s to indicate 256-KB address range.10:1 Reserved. Hardwired to 0s.0ROM BIOS Enable—RO.0 = ROM not accessible.108 Intel ® 82865G/82865GV GMCH Datasheet