RCC APB1 Clock Register
| CRSEN | Clock Recovery System peripheral clock enable |
| SWPMIEN | SWPMI Peripheral Clocks Enable |
| OPAMPEN | OPAMP peripheral clock enable |
| MDIOSEN | MDIOS peripheral clock enable |
| FDCANEN | FDCAN Peripheral Clocks Enable |
| TIM23EN | TIM23 Peripheral Clocks Enable |
| TIM24EN | TIM24 Peripheral Clocks Enable |