APB2 peripheral clock enabled in low power mode register
| TIM1LPEN | TIM1 clock enable during Sleep mode |
| USART1LPEN | USART1 clock enable during Sleep mode |
| USART6LPEN | USART6 clock enable during Sleep mode |
| ADC1LPEN | ADC1 clock enable during Sleep mode |
| SDIOLPEN | SDIO clock enable during Sleep mode |
| SPI1LPEN | SPI 1 clock enable during Sleep mode |
| SYSCFGLPEN | System configuration controller clock enable during Sleep mode |
| EXTITLPEN | EXTI and External IT clock enable during sleep mode |
| TIM9LPEN | TIM9 clock enable during sleep mode |
| TIM11LPEN | TIM11 clock enable during Sleep mode |