RM0377 Datasheet, PDF (199/862 Pages) STMicroelectronics – This reference manual targets application developers

Reset and clock control (RCC)
Bit 19 USART4EN: USART4 clock enable bit
This bit is set and cleared by software.
0: USART4 clock disabled
1: USART4 clock enabled
Bit 18 LPUART1EN: LPUART1 clock enable bit
This bit is set and cleared by software.
0: LPUART1 clock disabled
1: LPUART1 clock enabled
Bit 17 USART2EN: USART2 clock enable bit
This bit is set and cleared by software.
0: USART2 clock disabled
1: USART2 clock enabled
Bits 16:15 Reserved, must be kept at reset value.
Bit 14 SPI2EN: SPI2 clock enable bit
This bit is set and cleared by software.
0: SPI2 clock disabled
1: SPI2 clock enabled
Bits 13:12 Reserved, must be kept at reset value.
Bit 11 WWDGEN: Window watchdog clock enable bit
This bit is set and cleared by software.
0: Window watchdog clock disabled
1: Window watchdog clock enabled
Bits 10:9 Reserved, must be kept at reset value.
Bits 8:6 Reserved, must be kept at reset value.
Bit 5 TIM7EN: Timer 7 clock enable bit
Set and cleared by software.
0: Timer 7 clock disabled
1: Timer 7 clock enabled
Bit 4 TIM6EN: Timer 6 clock enable bit
Set and cleared by software.
0: Timer 6 clock disabled
1: Timer 6 clock enabled
Bits 3:2 Reserved, must be kept at reset value.
Bit 1 TIM3EN: Timer3 clock enable bit
Set and cleared by software.
0: Timer3 clock disabled
1: Timer3 clock enabled
Bit 0 TIM2EN: Timer2 clock enable bit
Set and cleared by software.
0: Timer2 clock disabled
1: Timer2 clock enabled
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DocID025942 Rev 2
RM0377