Motorola MVME2300 Series - Manual (Page 33)

Programming Model
http://www.motorola.com/computer/literature 1-9
1
Processor CHRP Memory Map
The following table shows a recommended CHRP memory map from the
point of view of the processor.
Notes
1. Programmable via Falcon chip set. For the MVME2300 series,
RAM size is limited to 128MB and ROM/Flash to 4MB.
2. To enable the “Processor-hole” area, program the Falcon chip set to
ignore 0x000A0000 - 0x000BFFFF address range and program the
Raven to map this address range to PCI memory space.
Table 1-3. CHRP Memory Map Example
Processor Address
Size Definition
No
te
s
Start End
0000 0000 top_dram dram_size System Memory (onboard DRAM) 1, 2
4000 0000 FCFF FFFF 3G - 48M PCI Memory Space:
4000 0000 to FCFF FFFF 3,4,8
FD00 0000 FDFF FFFF 16M Zero-Based PCI/ISA Memory Space
(mapped to 00000000 to 00FFFFFF) 3,8
FE00 0000 FE7F FFFF 8M Zero-Based PCI/ISA I/O Space
(mapped to 00000000 to 007FFFFF) 3,5,8
FE80 0000 FEF7 FFFF 7.5M Reserved
FEF8 0000 FEF8 FFFF 64K Falcon Registers
FEF9 0000 FEFE FFFF 384K Reserved
FEFF 0000 FEFF FFFF 64K Raven Registers 9
FF00 0000 FF7F FFFF 8M ROM/Flash Bank A 1,7
FF80 0000 FF8F FFFF 1M ROM/Flash Bank B 1,7
FF50 0000 FFEF FFFF 6M Reserved
FFF0 0000 FFFF FFFF 1M ROM/Flash Bank A or Bank B 7