| Field | Offset | Width | STM32L0x3 | STM32L162 | STM32L4x6 |
|---|---|---|---|---|---|
| SWIER0 | 0 | 1 | ✘ | ✘ | ✔ |
| SWIER1 | 1 | 1 | ✘ | ✘ | ✔ |
| SWIER2 | 2 | 1 | ✘ | ✘ | ✔ |
| SWIER3 | 3 | 1 | ✘ | ✘ | ✔ |
| SWIER4 | 4 | 1 | ✘ | ✘ | ✔ |
| SWIER5 | 5 | 1 | ✘ | ✘ | ✔ |
| SWIER6 | 6 | 1 | ✘ | ✘ | ✔ |
| SWIER7 | 7 | 1 | ✘ | ✘ | ✔ |
| SWIER8 | 8 | 1 | ✘ | ✘ | ✔ |
| SWIER9 | 9 | 1 | ✘ | ✘ | ✔ |
| SWIER10 | 10 | 1 | ✘ | ✘ | ✔ |
| SWIER11 | 11 | 1 | ✘ | ✘ | ✔ |
| SWIER12 | 12 | 1 | ✘ | ✘ | ✔ |
| SWIER13 | 13 | 1 | ✘ | ✘ | ✔ |
| SWIER14 | 14 | 1 | ✘ | ✘ | ✔ |
| SWIER15 | 15 | 1 | ✘ | ✘ | ✔ |
| SWIER16 | 16 | 1 | ✘ | ✘ | ✔ |
| SWIER18 | 18 | 1 | ✘ | ✘ | ✔ |
| SWIER19 | 19 | 1 | ✘ | ✘ | ✔ |
| SWIER20 | 20 | 1 | ✘ | ✘ | ✔ |
| SWIER21 | 21 | 1 | ✘ | ✘ | ✔ |
| SWIER22 | 22 | 1 | ✘ | ✘ | ✔ |