RCC APB2 Sleep Clock Register
| TIM1LPEN | TIM1 peripheral clock enable during CSleep mode |
| TIM8LPEN | TIM8 peripheral clock enable during CSleep mode |
| USART1LPEN | USART1 Peripheral Clocks Enable During CSleep Mode |
| USART6LPEN | USART6 Peripheral Clocks Enable During CSleep Mode |
| SPI1LPEN | SPI1 Peripheral Clocks Enable During CSleep Mode |
| SPI4LPEN | SPI4 Peripheral Clocks Enable During CSleep Mode |
| TIM15LPEN | TIM15 peripheral clock enable during CSleep mode |
| TIM16LPEN | TIM16 peripheral clock enable during CSleep mode |
| TIM17LPEN | TIM17 peripheral clock enable during CSleep mode |
| SPI5LPEN | SPI5 Peripheral Clocks Enable During CSleep Mode |
| SAI1LPEN | SAI1 Peripheral Clocks Enable During CSleep Mode |
| SAI2LPEN | SAI2 Peripheral Clocks Enable During CSleep Mode |
| SAI3LPEN | SAI3 Peripheral Clocks Enable During CSleep Mode |
| DFSDM1LPEN | DFSDM1 Peripheral Clocks Enable During CSleep Mode |
| HRTIMLPEN | HRTIM peripheral clock enable during CSleep mode |