Figure 2-4. Pci To Ppc Address Decoding - Motorola MVME2400 Series Programmer's Reference Manual

Hawk PCI Host Bridge & Multi-Processor Interrupt Controller
2
There are no limits imposed by the PHB on how large of an address space
a map decoder can represent. There is a lower limit of a minimum of 64
KBytes due to the resolution of the address compare logic.
For each map, there is an independent set of attributes. These attributes are
used to enable read accesses, enable write accesses, enable write posting,
and define the PPC bus transfer characteristics.
2-20
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PCI Bus Address 8 0 8 0 1 2 3 4
31
Decode is
PSADDx Register 7 0 8 0 9 0 0 0
31

Figure 2-4. PCI to PPC Address Decoding

16 15
0
>= and <=
16 15
0
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