8.6 SIGROW - Signature Row
The content of the Signature Row (SIGROW) fuses is preprogrammed and read-only. SIGROW contains information such as device ID, serial number, and calibration values.
All the AVR32/16DD14/20 devices have a three-byte device ID that identifies the device. The device ID can be read using the Unified Program and Debug Interface (UPDI), also when a device is locked. The device ID for the AVR32/16DD14/20 devices consists of three signature bytes, as shown in the following table.
| Device Name | Signature Byte Address and Value | ||
|---|---|---|---|
| 0x00 | 0x01 | 0x02 | |
| AVR32DD32 | 0x1E |
0x95 |
0x38 |
| AVR32DD28 | 0x1E |
0x95 |
0x39 |
| AVR16DD32 | 0x1E |
0x94 |
0x31 |
| AVR16DD28 | 0x1E |
0x94 |
0x32 |