Clock interrupt flag register
| LSIRDYF | LSI ready interrupt flag  |  
| LSERDYF | LSE ready interrupt flag  |  
| HSI16RDYF | HSI16 ready interrupt flag  |  
| HSERDYF | HSE ready interrupt flag  |  
| PLLRDYF | PLL ready interrupt flag  |  
| MSIRDYF | MSI ready interrupt flag  |  
| HSI48RDYF | HSI48 ready interrupt flag  |  
| CSSLSEF | LSE Clock Security System Interrupt flag  |  
| CSSHSEF | Clock Security System Interrupt flag  |