Clock interrupt clear register
| LSIRDYC | LSI ready Interrupt clear |
| LSERDYC | LSE ready Interrupt clear |
| HSI16RDYC | HSI16 ready Interrupt clear |
| HSERDYC | HSE ready Interrupt clear |
| PLLRDYC | PLL ready Interrupt clear |
| MSIRDYC | MSI ready Interrupt clear |
| HSI48RDYC | HSI48 ready Interrupt clear |
| CSSLSEC | LSE Clock Security System Interrupt clear |
| CSSHSEC | Clock Security System Interrupt clear |