SPC563Mx / SPC564Ax and traceability information

AN3044

14/20

Doc ID 16196 Rev 2

5

SPC563Mx / SPC564Ax and traceability information

SPC563Mx and SPC564Ax have traceability information stored in the shadow Flash. This

information is a unique MCU identification made of wafer lot number and MCU ID for this lot.

The coding and the memory map of the traceability information is reported in the datasheet

of those products. As the goal here is to focus on showing the technical possibilities to read

the traceability information, the memory map is not showed again here (please refer to the

relevant product documentation).

5.1

Traceability code and Flash protection

As described in the product documentation, each device has a unique die identification

made by the concatenation of wafer information and a unique ID per wafer.

This can be used to generate, during ECU programming in the production line, a unique

password based on the encryption of the unique ID (readable by the application software in

the shadow Flash) and of the password selected by the OEM.

Then, for ECU level diagnostics, the OEM can send the password for the ECU wherever

analysis is needed.