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PM0223 Datasheet(PDF) 89 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) 89 Page - STMicroelectronics

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89/110
PM0223
STM32L0 Core Peripherals
108
4.3.3
Interrupt Control and State Register (ICSR)
The ICSR:
•
Provides:
–
A set-pending bit for the Non-Maskable Interrupt (NMI) exception.
–
Set-pending and clear-pending bits for the PendSV and SysTick exceptions.
•
Indicates:
–
The exception number of the highest priority pending exception.
See the register summary in Table 30 on page 88 for the ICSR attributes. The bit
assignments are
Bits 31:24 Implementer: Implementer code
0x41
: ARM
Bits 23:20 Variant: Major revision number n in the rnpm revision status:
0x0
: Revision 0
Bits 19:16 Architecture: Constant that defines the architecture of the processor:
0xC
: ARMv6-M architecture
Bits 15:4 PartNo: Part number of the processor
0xC60
: = STM32L0 Cortex-M0+
Bits 3:0 Revision: Minor revision number m in the rnpm revision status:
0x1
: patch 1
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
NMIPE
NDSET
Reserved
PEND
SVSET
PEND
SVCLR
PEND
STSET
PENDS
TCLR
Reserved
ISRPE
NDING
Reserved
VECTPENDING[6:4]
rw
rw
w
rw
w
r
r
r
r
15
14
13
12
11
10
9
8
76
5432
1
0
VECTPENDING[3:0]
RETOB
ASE
Reserved
VECTACTIVE[8:0]
r
rrrr
rw
rw
rw
rw
rw
rw
rw
rw
rw



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