SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 208
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SAM3X8E
Manufacturer Part Number
SAM3X8E
Description
Manufacturer
Atmel Corporation
- Current page: 208 of 1465
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11.23.9.1
208
208
SAM3X/A
SAM3X/A
MPU configuration for a microcontroller
Usually, a microcontroller system has only a single processor and no caches. In such a system,
program the MPU as follows:
Table 11-40. Memory region attributes for a microcontroller
In most microcontroller implementations, the share ability and cache policy attributes do not
affect the system behavior. However, using these settings for the MPU regions can make the
application code more portable. The values given are for typical situations. In special systems,
such as multiprocessor designs or designs with a separate DMA engine, the share ability attri-
bute might be important. In these cases refer to the recommendations of the memory device
manufacturer.
Memory region
Flash memory
Internal SRAM
External SRAM
Peripherals
TEX
b000
b000
b000
b000
C
1
1
1
0
B
0
0
1
1
S
0
1
1
1
Memory type and attributes
Normal memory, Non-shareable, write-through
Normal memory, Shareable, write-through
Normal memory, Shareable, write-back, write-allocate
Device memory, Shareable
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
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