Motorola CPCI-6115 用户手册

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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.
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).
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 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*