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PM0223 Datasheet(PDF) 100 Page - STMicroelectronics

No. de pieza PM0223
Descripción Electrónicos  This programming manual provides information for application and system-level software developers
PDF  110 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0223 Datasheet(HTML) 100 Page - STMicroelectronics

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STM32L0 Core Peripherals
PM0223
100/110
DocID025763 Rev 1
4.5.2
MPU Control Register
The MPU_CTRL register:
•
Enables the MPU.
•
Enables the default memory map background region.
•
Enables use of the MPU when in the HardFault or Non-Maskable Interrupt (NMI)
handler.
See the register summary in Table 35 on page 99 for the MPU_CTRL attributes. The bit
assignments are:
15
14
13
12
11
10
9
8
76
5432
1
0
DREGION[7:0]
Reserved
SEPA
RATE
r
rrrr
r
r
r
r
Bits 31:24
Reserved.
Bits 23:16
IREGION[7:0]: Indicates the number of supported MPU instruction regions.
Always contains 0x00. The MPU memory map is unified and is described by the DREGION
field.
Bits 15:8
DREGION[7:0]: Indicates the number of supported MPU data regions:
0x00
= Zero regions if your device does not include the MPU.
0x08
= Eight regions if your device includes the MPU.
Bits 7:1
Reserved.
Bit 0
SEPARATE: Indicates support for unified or separate instruction and date memory maps:
0 = Unified.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
76
5432
1
0
Reserved
PRIVD
EFENA
HFNMI
ENA
EN
ABLE
rw
rw
rw



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