RCC APB1L enable register
| TIM2ENC | TIM2 enable |
| TIM3ENC | TIM3 enable |
| TIM4ENC | TIM4 enable |
| TIM5ENC | TIM5 enable |
| TIM6ENC | TIM6 enable |
| TIM7ENC | TIM7 enable |
| TIM12ENC | TIM12 enable |
| TIM13ENC | TIM13 enable |
| TIM14ENC | TIM14 enable |
| LPTIM1ENC | LPTIM1 enable |
| TIM10ENC | TIM10 enable |
| TIM11ENC | TIM11 enable |
| SPI2ENC | SPI2 enable |
| SPI3ENC | SPI3 enable |
| SPDIFRX1ENC | SPDIFRX1 enable |
| USART2ENC | USART2 enable |
| USART3ENC | USART3 enable |
| UART4ENC | UART4 enable |
| UART5ENC | UART5 enable |
| I2C1ENC | I2C1 enable |
| I2C2ENC | I2C2 enable |
| I2C3ENC | I2C3 enable |
| I3C1ENC | I3C1 enable |
| I3C2ENC | I3C2 enable |
| UART7ENC | UART7 enable |
| UART8ENC | UART8 enable |