Intel 80312 I/O Companion Chip - ECEE

Intel ® 80312 I/O Companion ChipPCI Address Translation Unit5.7.6 ATU Class Code Register - ATUCCRClass Code Register bit definitions adhere to PCI Local Bus Specification, Revision 2.2. Autoconfiguration software reads this register to determine the PCI device function.Table 5-33.ATU Class Code Register - ATUCCRIOPAttributes23 20 16 12 8 4 0rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rwPCIAttributesrorororororororororororororororororororororororoIntel ® 80200 Processor Local Bus Address1209HPCI Configuration Address Offset09H - 0BHAttribute Legend:RV = ReservedPR = PreservedRS = Read/SetRW = Read/WriteRC = Read ClearRO = Read OnlyNA = Not AccessibleBit Default Description23:16 05H Base Class - Memory Controller15:08 80H Sub Class - Other Memory Controller07:00 00H Programming Interface - None definedDeveloper’s Manual 5-67