DocID13902 Rev 15 106/1128
RM0008 Low-, medium-, high- and XL-density reset and clock control (RCC)
122
7.3.4 APB2 peripheral reset register (RCC_APB2RSTR)
Address offset: 0x0C
Reset value: 0x00000 0000
Access: no wait state, word, half-word and byte access
Bit 2 HSIRDYF: HSI ready interrupt flag
Set by hardware when the Internal High Speed clock becomes stable and HSIRDYDIE is
set.
Cleared by software setting the HSIRDYC bit.
0: No clock ready interrupt caused by the internal 8 MHz RC oscillator
1: Clock ready interrupt caused by the internal 8 MHz RC oscillator
Bit 1 LSERDYF: LSE ready interrupt flag
Set by hardware when the External Low Speed clock becomes stable and LSERDYDIE is
set.
Cleared by software setting the LSERDYC bit.
0: No clock ready interrupt caused by the external 32 kHz oscillator
1: Clock ready interrupt caused by the external 32 kHz oscillator
Bit 0 LSIRDYF: LSI ready interrupt flag
Set by hardware when the internal low speed clock becomes stable and LSIRDYDIE is set.
Cleared by software setting the LSIRDYC bit.
0: No clock ready interrupt caused by the internal RC 40 kHz oscillator
1: Clock ready interrupt caused by the internal RC 40 kHz oscillator
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
TIM11
RST
TIM10
RST
TIM9
RST
Reserved
rw rw rw
15141312111098 76543210
ADC3
RST
USART1
RST
TIM8
RST
SPI1
RST
TIM1
RST
ADC2
RST
ADC1
RST
IOPG
RST
IOPF
RST
IOPE
RST
IOPD
RST
IOPC
RST
IOPB
RST
IOPA
RST
Res.
AFIO
RST
rw rw rw rw rw rw rw rw rw rw rw rw rw rw Res. rw
Bits 31:22 Reserved, must be kept at reset value.
Bit 21 TIM11RST: TIM11 timer reset
Set and cleared by software.
0: No effect
1: Reset TIM11 timer
Bit 20 TIM10RST: TIM10 timer reset
Set and cleared by software.
0: No effect
1: Reset TIM10 timer
Bit 19 TIM9RST: TIM9 timer reset
Set and cleared by software.
0: No effect
1: Reset TIM9 timer
Bits 18:16 Reserved, always read as 0.
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