User`s guide

4.2 21164 Address Mapping to PCI Space
Figure 4–4 PCI Sparse I/O Space Address Translation—Region A
CPU Address
Length in Bytes
Byte Offset
PCI Address
0 0 0 0 0 0 0
Decoded from
CPU Address<6:3>
39
SBZ
31 25 24 2 1
34 33 32 31 30 29 7 6 5 4 3 2 1 0
PCI Quadword Addr10110
<4:3> Generated from INT4_VALID
0
MK−2306−08
1
Figure 4–5 PCI Sparse I/O Space Address Translation—Region B
<4:3> Generated from INT4_VALID
HAE_IO CSR
CPU Address<6:3>
CPU Address
39
SBZ
34 33 32 31 30 29 7 6 5 4 3 2 1 0
PCI Quadword Addr10 11
31
31
PCI Address
25
25 24 2 1 0
MK−2306−09
Length in Bytes
Byte Offset
Decoded from
11
4–12 System Address Mapping