2.1 ATECC608A-TNGLoRaWAN Configuration Zone

The ATECC608A-TNGLoRaWAN is largely fixed and cannot be modified by the customer. When using the Microchip Trust Platform Suite, all configuration information is taken into account by the tools. Relevant Information about how the device is configured is shown below or in the slot information.

Device Configuration Information

The serial number for each device is unique and stored in configuration zone bytes [0:3,8:12]. Serial number bytes [0:1] are 0x01 0x23. Serial number byte[8] is dependent on the vendor. Note that the serial number stored in the configuration zone is split and configuration zone byte[12] maps to the vendor specific serial number byte[8].
- For TTN byte[8] = 27
- For Actility byte[8] = 10
All other serial number bytes are unique.
The default 7-bit I²C address is 0x59. The I²C address can be overwritten using the UpdateExtra command.
Important: The default I²C address of the ATECC608A-TNGLoRaWAN is not the same as that of the generic non-configured ATECC608A device.
The I/O levels are set to a fixed reference level and, therefore, the micro can operate at a lower voltage than the ATECC608A-TNGLoRaWAN.
The watchdog timer is set to a max timeout of 1.3s.
The use of an I/O Protection key is enabled and stored in Slot 14.
Slot locking is possible for some of the slots of the ATECC608A-TNGLoRaWAN. For the ATECC608A-TNGLoRaWAN, the following individual slots may be locked: Slots 8, 10 and 14.
Monotonic counters are available for use by the system and are not attached to any keys.
The Health Test Failure bit is cleared after any time that a command fails as a result of a health test failure. If the failure symptom was transient, the command may pass when run a second time.
AES Operations are enabled.
The KDF AES mode is enabled and the output of the KDF command is encrypted by the I/O Protection Key stored in Slot 14.
Output of the ECDH command is encrypted by the I/O Protection Key stored in Slot 14..