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DSP56303 Datenblatt(PDF) 50 Page - Freescale Semiconductor, Inc

Teilenummer DSP56303
Bauteilbeschribung  DSP56303 USER?셎 MANUAL
PDF  292 Pages
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Hersteller  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56303 Datenblatt(HTML) 50 Page - Freescale Semiconductor, Inc

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DSP56303 User’s Manual, Rev. 2
3-6
Freescale Semiconductor
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.
Table 3-1. DSP56303 RAM Configurations
Bit Settings
Memory Sizes (in K)
MS
CE
Program RAM
X data RAM
Y data RAM
Cache
004220
013221
102330
111331
Table 3-2. DSP56303 RAM Address Ranges by Configuration
MS
CE
Program RAM Location
Cache Location
0
0
$000–$FFF
N/A
0
1
$000–$BFF
$C00–$FFF (internal location not accessible; address range
assigned to external Program Memory)
1
0
$000–$7FF
N/A
1
1
$000–$3FF
$400–$7FF (internal location not accessible; addressed
assigned to external Program Memory)



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