MVME3100 Programmer’s Guide (V3100A/PG1)
Chapter 1 Board Description and Memory Maps
6
MOTLoad’s Processor Memory Map
MOTLoad’s processor memory map is given in the following table.
Notes
1.
Reserved for future larger FLASH devices.
2.
The FLASH is logically one bank but may be physically implemented in two banks.
After RESET, the MPC8540 does not map any PCI memory space (inbound or outbound), and does not
respond to Config cycles.
VME Memory Map
The MVME3100 is fully capable of supporting both the PReP and the CHRP VME Memory Map
examples with RAM size limited to 2GB.
Table 1-4. MOTLoad’s Processor Address Map
Processor Address
Size
Definition
Notes
Start
End
0000 0000
top_dram-1
dram_size
(2GB max)
System Memory (on-board DRAM)
8000 0000
DFFF FFFF
1.5GB
PCI Memory Space/VME
E000 0000
E0FF FFFF
16MB
PCI I/O Space
E100 0000
E10F FFFF
1MB
MPC8540 CCSR
E1100 0000
E1FF FFFF
15MB
Not Used
E200 0000
E2FF FFFF
16MB
Status/Control Registers/UARTs,
External Timers
E300 0000
EFFF FFFF
208MB
Not Used
F000 0000
F7FF FFFF
128MB
Reserved
1, 2
bottom_flash
FFFF FFFF
flash_size
(128MB max)
FLASH
2