19.2.9 Secure Monitor

When no bootable program is found in any external NVM memory during the boot sequence and Secure mode is enabled, the ROM code executes the secure monitor.

The communication link is a USB connection in CDC mode (seen as a serial COM port on the OS).

The set of commands implemented in the secure monitor enables the user to send all the commands to program the customer key and the HASH of the public RSA key and to configure the Secure Boot mode.

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