Specifications

17 January 1997 – Subject to Change
System Address Mapping A–3
21164 Address Space Configuration Supported by the CIA
Figure A–2 21164 Address Space Configuration
LJ-04868.AI4
000XX
0Size
313233343536373839 30
Physical
Address
00
0=Cached
Memory
Space
1=Noncached
I/O
Space
00.0000.0000
01.FFFF.FFFF
02.0000.0000
7F.FFFF.FFFF
00XXX 80.0000.0000
PCI - Memory
Sparse Space
704MB Maximum
Reserved
8GB Cached
Memory
PCI - I/O Sparse
Space - 64MB
Byte/Word PCI
Space - 16GB
PCI - Memory Dense
Space - 4GB
PCI - Configuration,
CIA CSRs, Flash ROM
83.FFFF.FFFF
0100X 84.0000.0000
86.FFFF.FFFF
0111X 87.0000.0000
87.FFFF.FFFF
8B.FFFF.FFFF
1000X 88.0000.0000
84.FFFF.FFFF
01010 85.0000.0000
01011 85.8000.0000
0110X 86.0000.0000