8-bit AVR Microcontrollers

Reading the Signature Bytes

The algorithm for reading the Signature bytes is as follows (refer to Programming the Flash for details on Command and Address loading):

  1. 1.Step A: Load Command “0000 1000”.
  2. 2.Step B: Load Address Low Byte (0x00 - 0x02).
  3. 3.Set OE to “0”, and BS1 to “0”. The selected Signature byte can now be read at DATA.
  4. 4.Set OE to “1”.