SIGROW - Signature Row

The content of the Signature Row fuses (SIGROW) is pre-programmed and read-only. SIGROW contains information such as device ID, serial number, and calibration values.

All the AVR32DB28/32/48 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 AVR32DB28/32/48 devices consists of three signature bytes, which is given by the following table.

Table 1. Device ID
Device Name Signature Byte Address and Value
0x00 0x01 0x02
AVR32DB28 0x1E 0x95 0x37
AVR32DB32 0x1E 0x95 0x36
AVR32DB48 0x1E 0x95 0x35