| Field | Offset | Width | STM32L0x3 | STM32L162 | STM32L4x6 |
|---|---|---|---|---|---|
| UE | 0 | 1 | ✘ | ✘ | ✔ |
| UESM | 1 | 1 | ✘ | ✘ | ✔ |
| RE | 2 | 1 | ✘ | ✘ | ✔ |
| TE | 3 | 1 | ✘ | ✘ | ✔ |
| IDLEIE | 4 | 1 | ✘ | ✘ | ✔ |
| RXNEIE | 5 | 1 | ✘ | ✘ | ✔ |
| TCIE | 6 | 1 | ✘ | ✘ | ✔ |
| TXEIE | 7 | 1 | ✘ | ✘ | ✔ |
| PEIE | 8 | 1 | ✘ | ✘ | ✔ |
| PS | 9 | 1 | ✘ | ✘ | ✔ |
| PCE | 10 | 1 | ✘ | ✘ | ✔ |
| WAKE | 11 | 1 | ✘ | ✘ | ✔ |
| M0 | 12 | 1 | ✘ | ✘ | ✔ |
| MME | 13 | 1 | ✘ | ✘ | ✔ |
| CMIE | 14 | 1 | ✘ | ✘ | ✔ |
| OVER8 | 15 | 1 | ✘ | ✘ | ✔ |
| DEDT0 | 16 | 1 | ✘ | ✘ | ✔ |
| DEDT1 | 17 | 1 | ✘ | ✘ | ✔ |
| DEDT2 | 18 | 1 | ✘ | ✘ | ✔ |
| DEDT3 | 19 | 1 | ✘ | ✘ | ✔ |
| DEDT4 | 20 | 1 | ✘ | ✘ | ✔ |
| DEAT0 | 21 | 1 | ✘ | ✘ | ✔ |
| DEAT1 | 22 | 1 | ✘ | ✘ | ✔ |
| DEAT2 | 23 | 1 | ✘ | ✘ | ✔ |
| DEAT3 | 24 | 1 | ✘ | ✘ | ✔ |
| DEAT4 | 25 | 1 | ✘ | ✘ | ✔ |
| RTOIE | 26 | 1 | ✘ | ✘ | ✔ |
| EOBIE | 27 | 1 | ✘ | ✘ | ✔ |
| M1 | 28 | 1 | ✘ | ✘ | ✔ |