ST STM32F410 Reference Manual page 120

Reset and clock control (RCC)
Bit 8 ADC1EN: ADC1 clock enable
Bits 7:6 Reserved, must be kept at reset value.
Bit 5 USART6EN: USART6 clock enable
Bit 4 USART1EN: USART1 clock enable
Bits 3:1 Reserved, must be kept at reset value.
Bit 0 TIM1EN: TIM1 clock enable
120/771
Set and cleared by software.
0: ADC1 clock disabled
1: ADC1 clock disabled
Set and cleared by software.
0: USART6 clock disabled
1: USART6 clock enabled
Set and cleared by software.
0: USART1 clock disabled
1: USART1 clock enabled
Set and cleared by software.
0: TIM1 clock disabled
1: TIM1 clock enabled
RM0401 Rev 3
RM0401