Connectivity line devices: reset and clock control (RCC)
Bit 4 IOPCRST : IO port C reset
Set and cleared by software.
0: No effect
1: Reset I/O port C
Bit 3 IOPBRST : IO port B reset
Set and cleared by software.
0: No effect
1: Reset I/O port B
Bit 2 IOPARST : I/O port A reset
Set and cleared by software.
0: No effect
1: Reset I/O port A
Bit 1 Reserved, always read as 0.
Bit 0 AFIORST : Alternate function I/O reset
Set and cleared by software.
0: No effect
1: Reset Alternate Function
RM0008
7.3.5
APB1 peripheral reset register (RCC_APB1RSTR)
Address offset: 0x10
Reset value: 0x0000 0000
Access: no wait state, word, half-word and byte access
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Reserved
DAC
RST
PWR
RST
BKP
RST
CAN2
RST
CAN1
RST
Reserved
I2C2
RST
I2C1
RST
UART
5
RST
UART
4
RST
USART
3
RST
USART
2
RST
Res.
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SPI3
SPI2
WWD
TIM7
TIM6
TIM5
TIM4
TIM3
TIM2
RST
rw
RST
rw
Reserved
GRST
rw
Reserved
RST
rw
RST
rw
RST
rw
RST
rw
RST
rw
RST
rw
Bits 31:30 Reserved, always read as 0.
Bit 29 DACRST : DAC interface reset
Set and cleared by software.
0: No effect
1: Reset DAC interface
Bit 28 PWRRST : Power interface reset
Set and cleared by software.
0: No effect
1: Reset power interface
122/995
Doc ID 13902 Rev 9
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