RM0316 Datasheet, PDF (154/1141 Pages) STMicroelectronics – This reference manual targets application developers

Reset and clock control (RCC)
RM0316
Bit 26 DAC2EN: DAC2 interface clock enable (STM32F303x6/8 and STM32F328x8 devices only)
Set and cleared by software.
0: DAC2 interface clock disabled
1: DAC2 interface clock enabled
Bit 25 CANEN: CAN clock enable
Set and reset by software.
0: CAN clock disabled
1: CAN clock enabled
Bit 24 Reserved, must be kept at reset value.
Bit 23 USBEN: USB clock enable (STM32F303xB/C/D/E devices only)
Set and reset by software.
0: USB clock disabled
1: USB clock enabled
Bit 22 I2C2EN: I2C2 clock enable (STM32F303xB/C/D/E, STM32F358xC and STM32F398xE
devices only)
Set and cleared by software.
0: I2C2 clock disabled
1: I2C2 clock enabled
Bit 21 I2C1EN: I2C1 clock enable
Set and cleared by software.
0: I2C1 clock disabled
1: I2C1 clock enabled
Bit 20 UART5EN: UART5 clock enable (STM32F303xB/C/D/E, STM32F358xC and STM32F398xE
devices only)
Set and cleared by software.
0: UART5 clock disabled
1: UART5 clock enabled
Bit 19 UART4EN: UART4 clock enable (STM32F303xB/C/D/E, STM32F358xC and STM32F398xE
devices only)
Set and cleared by software.
0: UART4 clock disabled
1: UART4 clock enabled
Bit 18 USART3EN: USART3 clock enable
Set and cleared by software.
0: USART3 clock disabled
1: USART3 clock enabled
Bit 17 USART2EN: USART2 clock enable
Set and cleared by software.
0: USART2 clock disabled
1: USART2 clock enabled
Bit 16 Reserved, must be kept at reset value.
Bit 15 SPI3EN: SPI3 clock enable (STM32F303xB/C/D/E, STM32F358xC and STM32F398xE
devices only)
Set and cleared by software.
0: SPI3 clock disabled
1: SPI3 clock enabled
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