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RIVA128 Datasheet(PDF) 70 Page - STMicroelectronics |
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RIVA128 Datasheet(HTML) 70 Page - STMicroelectronics |
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70 / 77 page  128-BIT 3D MULTIMEDIA ACCELERATOR RIVA 128 70/77 Byte offsets 0x2F - 0x2C Subsystem Vendor ID (0x2F - 0x2C) 0x2F 0x2E 0x2D 0x2C 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bits Function R W I 31:16 SUBSYSTEM_ID is a unique code defined by the vendor to identify this prod- uct. R - 0 15:0 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 BIOS automatically during reset. This is useful for add-in card implementa- tions. 2 These bytes may be written from PCI configuration space at locations 0x40 - 0x43. R - 0 |
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