3.3 ECC608-TMNGTLS EEPROM One Time Programmable (OTP) Zone
The OTP zone of 64 bytes (512 bits) is part of the EEPROM array and is used for read-only storage. It is organized as two blocks of 32 bytes each. For the ECC608-TMNGTLS, the OTP zone is shipped pre-locked and contains the following data:
02 25 70 13 37 B9 CF F0 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00The data byte values written into the OTP zone are always available for
reading using either 4 or 32-byte reads but can never be modified.
: The bytes in the OTP zone may change
over time. These values are recommended to not be used in any cryptographic
calculations.