| Field | Offset | Width | STM32F100 | STM32F101 | STM32F102 | STM32F103 | STM32F107 |
|---|---|---|---|---|---|---|---|
| FBM0 | 0 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM1 | 1 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM2 | 2 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM3 | 3 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM4 | 4 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM5 | 5 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM6 | 6 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM7 | 7 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM8 | 8 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM9 | 9 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM10 | 10 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM11 | 11 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM12 | 12 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |
| FBM13 | 13 | 1 | ✘ | ✘ | ✘ | ✔ | ✘ |