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PM0214 데이터시트(PDF) 237 Page - STMicroelectronics

부품명 PM0214
상세설명  This programming manual provides information
PDF  245 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0214 데이터시트(HTML) 237 Page - STMicroelectronics

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DocID022708 Rev 4
237/245
PM0214
Core peripherals
244
4.6.1
Coprocessor access control register (CPACR)
Address offset (from SCB): 0x88
Reset value: 0x0000000
Required privilege: Privileged
The CPACR register specifies the access privileges for coprocessors.
4.6.2
Floating-point context control register (FPCCR)
Address offset: 0x04
Reset value: 0xC000000
Required privilege: Privileged
The FPCCR register sets or returns FPU control data.
31
3029
28
27
26
25
24
23
22
21
20
19
18
17
16
Reserved
CP11
CP10
Reserved
rw
rw
15
14
13
12
11
10
9
8
76
54
3
21
0
Reserved
Bits 31:24
Reserved. Read as Zero, Write Ignore.
Bits 23:20
CPn: [2n+1:2n] for n values 10 and 11. Access privileges for coprocessor n. The possible
values of each field are:
0b00: Access denied. Any attempted access generates a NOCP UsageFault.
0b01: Privileged access only. An unprivileged access generates a NOCP fault.
0b10: Reserved. The result of any access is Unpredictable.
0b11: Full access.
Bits 19:0
Reserved. Read as Zero, Write Ignore.
31
3029
28
27
26
25
24
23
22
21
20
19
18
17
16
ASPEN LSPEN
Reserved
rw
rw
15
14
13
12
11
10
9
8
76
54
3
21
0
Reserved
BFRDY
HFRDY
USER
rw
rw
rw
rw
rw
rw
rw



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