APB1SMENR1
| TIM2SMEN | TIM2 timer clocks enable during Sleep and Stop modes |
| TIM3SMEN | TIM3 timer clocks enable during Sleep and Stop modes |
| TIM4SMEN | TIM4 timer clocks enable during Sleep and Stop modes |
| TIM5SMEN | TIM5 timer clocks enable during Sleep and Stop modes |
| TIM6SMEN | TIM6 timer clocks enable during Sleep and Stop modes |
| TIM7SMEN | TIM7 timer clocks enable during Sleep and Stop modes |
| RTCAPBSMEN | RTC APB clock enable during Sleep and Stop modes |
| WWDGSMEN | Window watchdog clocks enable during Sleep and Stop modes |
| SPI2SMEN | SPI2 clocks enable during Sleep and Stop modes |
| SP3SMEN | SPI3 clocks enable during Sleep and Stop modes |
| USART2SMEN | USART2 clocks enable during Sleep and Stop modes |
| USART3SMEN | USART3 clocks enable during Sleep and Stop modes |
| UART4SMEN | UART4 clocks enable during Sleep and Stop modes |
| UART5SMEN | UART5 clocks enable during Sleep and Stop modes |
| I2C1SMEN | I2C1 clocks enable during Sleep and Stop modes |
| I2C2SMEN | I2C2 clocks enable during Sleep and Stop modes |
| I2C3SMEN | I2C3 clocks enable during Sleep and Stop modes |
| CRSSMEN | CRS clock enable during Sleep and Stop modes |
| CAN1SMEN | CAN1 clocks enable during Sleep and Stop modes |
| PWRSMEN | Power interface clocks enable during Sleep and Stop modes |
| DAC1SMEN | DAC1 interface clocks enable during Sleep and Stop modes |
| OPAMPSMEN | OPAMP interface clocks enable during Sleep and Stop modes |
| LPTIM1SMEN | Low power timer 1 clocks enable during Sleep and Stop modes |