DSP56303 FREESCALE [Freescale Semiconductor, Inc], DSP56303 Datasheet - Page 50

• Manufacturer Part Number: DSP56303
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Memory Configuration
The actual memory locations for Program RAM and the Instruction Cache in the Program
memory space are determined by the MS and CE bits, and their addresses are given in Table 3-2.
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.
3-6
MS
0
0
1
1
MS
0
0
1
1
Bit Settings
Table 3-2. DSP56303 RAM Address Ranges by Configuration
CE
0
1
0
1
CE
0
1
0
1
Program RAM Location
Table 3-1. DSP56303 RAM Configurations
$000–$FFF
$000–$BFF
$000–$7FF
$000–$3FF
Program RAM
DSP56303 User’s Manual, Rev. 2
4
3
2
1
$C00–$FFF (internal location not accessible; address range
assigned to external Program Memory)
N/A
$400–$7FF (internal location not accessible; addressed
assigned to external Program Memory)
X data RAM
2
2
3
3
Memory Sizes (in K)
Cache Location
Y data RAM
N/A
2
2
3
3
Freescale Semiconductor
Cache
0
1
0
1