| Field | Offset | Width | STM32F301 | STM32F302 | STM32F303 | STM32F373 | STM32F3x4 |
|---|---|---|---|---|---|---|---|
| MSWU | 0 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TASWU | 1 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TBSWU | 2 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TCSWU | 3 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TDSWU | 4 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TESWU | 5 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| MRST | 8 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TARST | 9 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TBRST | 10 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TCRST | 11 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TDRST | 12 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |
| TERST | 13 | 1 | ✘ | ✘ | ✘ | ✘ | ✔ |