13.13.9 Device Identification
The information in this register is related to the Ordering Information.
| Name: | DID |
| Offset: | 0x0018 |
| Property: | PAC Write Protection |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| PROCESSOR[3:0] | FAMILY[4:1] | ||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | p | p | p | p | f | f | f | f | |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| FAMILY[0] | SERIES[5:0] | ||||||||
| Access | R | R | R | R | R | R | R | ||
| Reset | f | s | s | s | s | s | s | ||
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| DIE[3:0] | REVISION[3:0] | ||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | d | d | d | d | r | r | r | r | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| DEVSEL[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | x | x | x | x | x | x | x | x | |
Bits 31:28 – PROCESSOR[3:0] Processor
The value of this field defines the processor used on the device. For this device, the value of this field is 0x1, corresponding to the ARM Cortex-M0+ processor.
Bits 27:23 – FAMILY[4:0] Product Family
The value of this field corresponds to the product family part of the ordering code. For this device, the value of this field is 0x0, corresponding to the SAM D family of base line microcontrollers.
Bits 21:16 – SERIES[5:0] Product Series
The value of this field corresponds to the product series part of the ordering code. For this device, the value of this field is 0x01, corresponding to a product with the Cortex-M0+ processor with DMA and USB features.
Bits 15:12 – DIE[3:0] Die Number
Identifies the die family.
Bits 11:8 – REVISION[3:0] Revision Number
Identifies the die revision number. Refer the product family silicon errata and data sheet clarification document for further information.
Bits 7:0 – DEVSEL[7:0] Device Selection
This bit field identifies a device within a product family and product series. The value corresponds to the Flash memory density, pin count and device variant parts of the ordering code. The Family Silicon Device Identification table in the “SAM D21/DA1 Family Silicon Errata” document provides the link between DEVSEL and part number.