The figures below summarize the start-up behavior of the device as firmware-controlled after different reset types.

Figure 1. System firmware flow (HOST cluster)

Figure 2. CSRM firmware flow (SECURE cluster)

Attention: Hardware resources used by Firmware

The start-up procedure executed during device boot uses some memories, which means that they can be overwritten during start-up and the content is not preserved through resets, as follows:

  • Data scratch-pad RAM (DSPR) of CPU0 and CPUcs - the first 8KBytes, upon any device reset

  • Program scratch-pad RAM (PSPR) of CPU0 and CPUcs - the first 2KBytes, upon any device reset