31.1.13 Boot Support

The NVM Controller supports the following boot methods:

  • Dual Boot regions each with half the available total BFM size.
  • Single contiguous Boot region using the total BFM size.

Additionally, a Secure Boot page can be setup within each Boot region in both Single and Dual Boot modes.

Single and Dual Boot

In a dual panel system, each panel has BFM. The BFM can be used in either Dual Boot or Single Boot. Dual Boot designates each panel’s BFM as a boot source. This allows the safe updating of one boot image while the other image stays intact. Single boot allows the boot image to span both panel’s in the single BFM.

For BLM you can select to lock a swap setting or determine how a panel is swapped. However, you cannot choose if a single or dual boot will be initiated. The Microcontroller makes this decision based on how your device is designed.