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PCI7421 Datasheet(PDF) 286 Page - Texas Instruments |
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PCI7421 Datasheet(HTML) 286 Page - Texas Instruments |
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286 / 298 page  13−14 13.23 Subsystem ID Alias Register The contents of the subsystem access register are aliased to the subsystem vendor ID and subsystem ID registers at PCI offsets 2Ch and 2Eh, respectively. See Table 13−14 for a complete description of the register contents. Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Name Subsystem ID alias Type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW Default 1 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Name Subsystem ID alias Type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW Default 0 0 0 1 0 0 0 0 0 1 0 0 1 1 0 0 Register: Subsystem ID alias Offset: 50h Type: Read/Write (EEPROM, GRST only) Default: 8035 104Ch Table 13−14. Subsystem ID Alias Register Description BIT FIELD NAME TYPE DESCRIPTION 31−16 SubsystemID RW Subsystem device ID. The value written to this field is aliased to the subsystem ID register at PCI offset 2Eh. 15−0 SubsystemVendorID RW Subsystem vendor ID. The value written to this field is aliased to the subsystem vendor ID register at PCI offset 2Ch. 13.24 Class Code Alias Register This register is alias of the class code. Not like original register, this register is read/write and loadable from EEPROM. Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Name Class code alias Type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW Default 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Name Class code alias Type RW RW RW RW RW RW RW RW RW RW R R R R R R Default 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Register: Class code alias Offset: 54h Type: Read-only, Read/Write (EEPROM, GRST only) Default: 0780 0000h |
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