FAMILY=0, SERIES=0, PROCESSOR=0
Device Identification
| DEVSEL | Device Select |
| REVISION | Revision Number |
| DIE | Die Number |
| SERIES | Series 0 (0): Cortex-M0+ processor, basic feature set 1 (1): Cortex-M0+ processor, USB |
| FAMILY | Family 0 (0): General purpose microcontroller 1 (1): PicoPower |
| PROCESSOR | Processor 0 (0): Cortex-M0 1 (1): Cortex-M0+ 2 (2): Cortex-M3 3 (3): Cortex-M4 |