7.7 SIGROW - Signature Row
The content of the Signature Row (SIGROW) fuses is preprogrammed and read-only. SIGROW contains information as device ID, serial number, and calibration values.
All the AVR32/16DU32/28/20/14 devices have a device ID to identify family, Flash size, and pin count. The device ID consists of three DEVICEIDn bytes, as shown in the following table.
| Device Name | Signature Byte Address and Value | ||
|---|---|---|---|
| 0x00 | 0x01 | 0x02 | |
| AVR32DU32 | 0x1E |
0x95 |
0x3F |
| AVR32DU28 | 0x1E |
0x95 |
0x40 |
| AVR32DU20 | 0x1E |
0x95 |
0x4E |
| AVR32DU14 | 0x1E |
0x95 |
0x4F |
| AVR16DU32 | 0x1E |
0x94 |
0x38 |
| AVR16DU28 | 0x1E |
0x94 |
0x39 |
| AVR16DU20 | 0x1E |
0x94 |
0x3A |
| AVR16DU14 | 0x1E |
0x94 |
0x3B |