Pci Memory Master Address Map B In Host Mode - Motorola MPC8240 User Manual

PCI Master
Memory Space
0
Local memory space
0 to 1GB
1GB
2GB
PCI
memory addresses in
2GB to 2GB - 48MB
range
4GB - 16M
ROM (read only)
4GB
Figure 3-2. PCI Memory Master Address Map B in Host Mode
MPC8240 Memory Controller
Forwarded to local
memory Interface
Memory select error
Ignored.
Not forwarded to
local memory.
If local ROM
forwarded to ROM
Chapter 3. Address Maps
Address Map B
MPC8240 Memory Space
0
Local memory in
0 to 1GB range.
Memory controller
performs memory
cycles
1GB
2GB
Reserved
MPC8240 ROM Space
4GB - 16M
Local ROM space
4GB
3-5