A-2 Pci Memory Master Address Map - Motorola MPC8240 User Manual

Address Space for Map A
PCI Master
Memory Space
PCI
memory addresses in
0 to 2GB - 16MB
range
Local memory
space in range
2GB to 3GB
If ROM is local, then
reserved
if ROM is remote, then
PCI memory space
Figure A-2. PCI Memory Master Address Map A
A-4
Memory Controller
0
Ignored.
Not forwarded to
PCI local memory.
memory
cycles
2GB
Forwarded to memory
Interface with A31
Local
(msb) cleared
memory
cycles
3GB
Memory select error
4GB-16MB
4GB
MPC8240 Integrated Processor User's Manual
Reserved
MPC107 Memory Space
0
Local memory in
0 to 1GB range.
Memory controller
performs memory
cycles.
1GB
2GB