Intel 80312 I/O Companion Chip - ECEE

Intel ® 80312 I/O Companion ChipPCI Address Translation Unit5.7.24 Secondary Inbound ATU Translate Value Register - SIATVRThe Secondary Inbound ATU Translate Value Register (SIATVR) contains the Intel ® 80312 I/Ocompanion chip internal bus address used to convert the secondary PCI bus address to a internalbus address. This address is driven on the Intel ® 80312 I/O companion chip internal bus as a resultof the secondary inbound ATU address translation.Table 5-52.Secondary Inbound Translate ATU Value Register - SIATVRIOPAttributes31 28 24 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 rv rv rv rv rv rv rv rv rv rv rv rvPCIAttributesrw rw rw rw rw rw rw rw rw rw rw rwrw rw rw rw rw rw rw rwrvrvrvrvrvrvrvrvrvrvrvrvIntel ® 80200 Processor Local Bus Address1250HPCI Configuration Address Offset50H - 53HAttribute Legend:RV = ReservedPR = PreservedRS = Read/SetRW = Read/WriteRC = Read ClearRO = Read OnlyNA = Not AccessibleBit Default DescriptionSecondary Inbound ATU Translate Value - Used to convert the secondary PCI address to a internal bus31:12 00001H address. The secondary inbound address translation value must be 64-bit aligned on the Intel ® 80312I/O companion chip internal bus. (The default value of the entire register is 0000 1000H.)11:00 000H ReservedDeveloper’s Manual 5-85