Motorola CPCI-6115 用户手册
8
CPCI-6115 CompactPCI Single Board Computer Installation and Use (6806800A68D)
125
Memory Maps
8.1
Overview
This chapter supplies information for use of the CPCI-6115 family of Single Board Computers
in a system configuration. Here you will find descriptions of the memory maps and software
initialization.
in a system configuration. Here you will find descriptions of the memory maps and software
initialization.
8.2
Memory Maps
There are three points of view for memory maps:
z
Mapping of all resources as viewed by the processor (MPU bus memory map)
z
Mapping of onboard resources as viewed by PCI local bus masters (PCI bus memory map)
z
Mapping of onboard resources as viewed by the CompactPCI bus
The following sections give a general description of the CPCI-6115 memory organization from
the above three points of view. Detailed memory maps can be found in the MCPN905
CompactPCI Single Board Computer Programmer’s Reference Guide (MCPN905A/PG).
the above three points of view. Detailed memory maps can be found in the MCPN905
CompactPCI Single Board Computer Programmer’s Reference Guide (MCPN905A/PG).
8.2.1
Default Processor Memory Map
The MV64360 presents a default CPU memory map following RESET negation. The following
table shows the default Memory Map from the point of view of the Processor. Address bits
[35:32] are only relevant for the MPC7457 extended address mode and are not shown in the
following tables.
table shows the default Memory Map from the point of view of the Processor. Address bits
[35:32] are only relevant for the MPC7457 extended address mode and are not shown in the
following tables.
Table 8-1 Default Processor Memory Map
Processor Address
Size
Definition
No
tes
Start
End
0000 0000
007F FFFF
8 MB
DRAM Bank 0
0080 0000
00FF FFFF
8 MB
DRAM Bank 1
0100 0000
017F FFFF
8 MB
DRAM Bank 2
0180 0000
01FF FFFF
8 MB
DRAM Bank 3
0200 0000
0FFF FFFF
224 MB
Unassigned
1000 0000
11FF FFFF
32 MB
PCI Bus 0 I/O Space
1200 0000
13FF FFFF
32 MB
PCI Bus 0 Memory Space 0
1400 0000
1BFF FFFF
128 MB
Unassigned
1C00 0000
1C7F FFFF
8 MB
Device CS0*