STG3000X-RIVA128 STMicroelectronics, STG3000X-RIVA128 Datasheet - Page 70

• Manufacturer Part Number: STG3000X-RIVA128
• Description: 128-BIT 3D MULTIMEDIA ACCELERATOR
• Manufacturer: STMicroelectronics

RIVA 128
Byte offsets 0x2F - 0x2C
Subsystem Vendor ID (0x2F - 0x2C)
70/77
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31:16
Bits
15:0
0x2F
Function
SUBSYSTEM_ID is a unique code defined by the vendor to identify this prod-
uct.
SUB_VENDOR_ID bits allocated by the PCI Special Interest Group to
uniquely identify the manufacturer of the sub-system. Based on the strapping
options read from ROM during PCI reset, this field may behave in one of two
ways:
1 These bytes can be read from address locations 0x54 - 0x57 of the ROM
2 These bytes may be written from PCI configuration space at locations 0x40
BIOS automatically during reset. This is useful for add-in card implementa-
tions.
- 0x43.
0x2E
128-BIT 3D MULTIMEDIA ACCELERATOR
0x2D
9
8
7
6
5
0x2C
4
3
R W I
R - 0
R - 0
2
1
0