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PM0056 датащи(PDF) 117 Page - STMicroelectronics

номер детали PM0056
подробное описание детали  This programming manual provides information
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производитель  STMICROELECTRONICS [STMicroelectronics]
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PM0056 датащи(HTML) 117 Page - STMicroelectronics

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PM0056
Core peripherals
SIZE field values
The SIZE field defines the size of the MPU memory region specified by the MPU_RNR
register as follows:
(Region size in bytes) = 2(SIZE+1)
The smallest permitted region size is 32B, corresponding to a SIZE value of 4. Table 4-45
gives example SIZE values, with the corresponding region size and value of N in the RBAR.
Bits 7:6
Reserved, forced by hardware to 0.
Bits 5:1
SIZE: Size of the MPU protection region.
The minimum permitted value is 3 (b00010), see SIZE field values for more information.
Bit 0
ENABLE: Region enable bit.
Table 39. Example SIZE field values
SIZE value
Region size
Value of N(1)
1. In the MPU_RBAR register see Section 4.2.8 on page 114
Note
b00100 (4)
32B
5
Minimum permitted size
b01001 (9)
1KB
10
-
b10011 (19)
1MB
20
-
b11101 (29)
1GB
30
-
b11111 (31)
4GB
b01100
Maximum possible size
Table 40. MPU register map and reset values
Offset
Register
0x00
MPU_TYPER
Reserved
IREGION[7:0]
DREGION[7:0]
Reserved
Reset Value
0 0 000 0 0 0 000 000 000001 000000 00 0 0 0 0
0x04
MPU_CR
Reserved
Reset Value
0 0 000 0 0 0 000 000 000000 000000 00 0 0 0 0
0x08
MPU_RNR
Reserved
REGION[7:0]
Reset Value
0 0 000 0 0 0 000 000 000000 000000 00 0 0 0 0
0x0C
MPU_RBAR
ADDR[31:N]...
REGION
[3:0]
Reset Value
0 0 000 0 0 0 000 000 000000 000000 00 0 0 0 0



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