| Field | Offset | Width | STM32L0x3 | STM32L162 | STM32L4x6 |
|---|---|---|---|---|---|
| LSIRDYF | 0 | 1 | ✘ | ✔ | ✘ |
| LSERDYF | 1 | 1 | ✘ | ✔ | ✘ |
| HSIRDYF | 2 | 1 | ✘ | ✔ | ✘ |
| HSERDYF | 3 | 1 | ✘ | ✔ | ✘ |
| PLLRDYF | 4 | 1 | ✘ | ✔ | ✘ |
| MSIRDYF | 5 | 1 | ✘ | ✔ | ✘ |
| CSSF | 7 | 1 | ✘ | ✔ | ✘ |
| LSIRDYIE | 8 | 1 | ✘ | ✔ | ✘ |
| LSERDYIE | 9 | 1 | ✘ | ✔ | ✘ |
| HSIRDYIE | 10 | 1 | ✘ | ✔ | ✘ |
| HSERDYIE | 11 | 1 | ✘ | ✔ | ✘ |
| PLLRDYIE | 12 | 1 | ✘ | ✔ | ✘ |
| MSIRDYIE | 13 | 1 | ✘ | ✔ | ✘ |
| LSIRDYC | 16 | 1 | ✘ | ✔ | ✘ |
| LSERDYC | 17 | 1 | ✘ | ✔ | ✘ |
| HSIRDYC | 18 | 1 | ✘ | ✔ | ✘ |
| HSERDYC | 19 | 1 | ✘ | ✔ | ✘ |
| PLLRDYC | 20 | 1 | ✘ | ✔ | ✘ |
| MSIRDYC | 21 | 1 | ✘ | ✔ | ✘ |
| CSSC | 23 | 1 | ✘ | ✔ | ✘ |