APB1 peripheral reset register 1
| TIM2RST | TIM2 timer reset |
| TIM3RST | TIM3 timer reset |
| TIM4RST | TIM3 timer reset |
| TIM5RST | TIM5 timer reset |
| TIM6RST | TIM6 timer reset |
| TIM7RST | TIM7 timer reset |
| SPI2RST | SPI2 reset |
| SPI3RST | SPI3 reset |
| USART2RST | USART2 reset |
| USART3RST | USART3 reset |
| UART4RST | UART4 reset |
| UART5RST | UART5 reset |
| I2C1RST | I2C1 reset |
| I2C2RST | I2C2 reset |
| I2C3RST | I2C3 reset |
| CRSRST | CRS reset |
| CAN1RST | CAN1 reset |
| PWRRST | Power interface reset |
| DAC1RST | DAC1 interface reset |
| OPAMPRST | OPAMP interface reset |
| LPTIM1RST | Low Power Timer 1 reset |