4.15 ROM Code

The SAM9X60 ROM code features a secure bootloader supporting code integrity check, code authentication and code encryption.

A boot sequence register is added to define the NVM boot order. The boot select controller (BSC) is a 32-bit register in OTP. It is a scratchpad used by the boot program to store and read the bootable media location. It features a 16-bit write protection key on the MSBs and a 16-bit scratchpad on the LSBs.

Refer to the SAM9X60 data sheet for more details.

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