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Figure 4–1 sysBus Address Map

LJ-03952.AI

Cacheable Memory Space

Noncacheable Memory Space

0 0000 0000

0 FFFF FFFF

1 0000 0000

1 7FFF FFFF

21071-CA CSR Space

21071-DA CSR Space

1 8000 0000

1 9FFF FFFF

1 A000 0000

1 AFFF FFFF

PCI Interrupt Acknowledge

Special Cycle Space

1 B000 0000

1 BFFF FFFF

1 C000 0000

1 DFFF FFFF

1 E000 0000

1 FFFF FFFF

PCI Sparse I/O Space

PCI Configuration Space

PCI Sparse Memory Space

PCI Dense Memory Space

3 0000 0000

3 FFFF FFFF

2 0000 0000

2 7FFF FFFF

4–2 System Address Mapping