Memory Maps; Default Settings (0, 0, 0) - Motorola DSP56303 User Manual

3.7

Memory Maps

The following figures describe each of the memory space and RAM configurations defined by
the settings of the SC, MS, and CE bits. The figures show the configuration and the table
describes the bit settings, memory sizes, and memory locations.
Program
$FFFFFF
Internal
Reserved
$FFF0C0
Bootstrap ROM
$FF0000
External
$001000
Internal
Program RAM
$000000
Bit Settings
SC MS CE
0 0 0
Default
$FFFFFF
$FFFF80
$FFF000
$FF0000
$000800
4 K
X data RAM
$000000
Program RAM X Data RAM
4 K 2 K
$000–$FFF $000–$7FF
Figure 3-1. Default Settings (0, 0, 0)
Memory Configuration
X Data
$FFFFFF
Internal I/O
$FFFF80
External
$FFF000
Internal
Reserved
$FF0000
External
$000800
Internal
2 K
$000000
Memory Configuration
Y Data RAM
2 K
$000–$7FF
Memory Maps
Y Data
External I/O
External
Internal
Reserved
External
Internal
Y data RAM
2 K
Addressable
Cache
Memory Size
None 16 M
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