13.3 Boot ROM Dependencies
Clocks
The device selects the OSC16M oscillator which is enabled by default after reset and configured at 4 MHz.
NVM User (UROW) and Boot Configuration (BOCOR) Configuration rows
The Boot ROM reads the different NVM Configuration rows during its execution.
The relevant fuses must be set appropriately by any configuration tools supporting the device in order to operate correctly.
Refer to the NVM Configuration Rows section for additional information.
Debug Operations
For security reasons, no debug is possible during the Boot ROM execution except when entering the Boot ROM CPU Park mode.