| Field | Offset | Width | STM32F301 | STM32F302 | STM32F303 | STM32F373 | STM32F3x4 |
|---|---|---|---|---|---|---|---|
| SFT | 0 | 3 | ✘ | ✘ | ✘ | ✔ | ✘ |
| RXTOL | 3 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| BRESTP | 4 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| BREGEN | 5 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| LBPEGEN | 6 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| BRDNOGEN | 7 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| SFTOP | 8 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| OAR | 16 | 15 | ✘ | ✘ | ✘ | ✔ | ✘ |
| LSTN | 31 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |