| Register | Offset | STM32L0x3 | STM32L162 | STM32L4x6 |
|---|---|---|---|---|
| ACR | 0x0000 | ✘ | ✔ | ✘ |
| PECR | 0x0004 | ✘ | ✔ | ✘ |
| PDKEYR | 0x0008 | ✘ | ✔ | ✘ |
| PEKEYR | 0x000C | ✘ | ✔ | ✘ |
| PRGKEYR | 0x0010 | ✘ | ✔ | ✘ |
| OPTKEYR | 0x0014 | ✘ | ✔ | ✘ |
| SR | 0x0018 | ✘ | ✔ | ✘ |
| OBR | 0x001C | ✘ | ✔ | ✘ |
| WRPR1 | 0x0020 | ✘ | ✔ | ✘ |
| WRPR2 | 0x0080 | ✘ | ✔ | ✘ |
| WRPR3 | 0x0084 | ✘ | ✔ | ✘ |