30.2.17.3 Single Boot Model

Using a Single Boot region model allows the user to make use of almost all the Boot memory provided. The Boot ROM does not differentiate between Dual and Single Boot models, so Boot ROM always reads and tests the sequence numbers from each panel. Consequently, it is the user’s responsibility to ensure that the sequence number, SeqNum, for each panel remains consistent with the desired panel order. It is highly recommended that the default Lower Boot region have a higher SeqNum than the default Upper Boot region, therefore preserving their natural order (See Device Memory Map Example).

Single Boot and Boot Page Protection

When operating with a Single Boot model, it is recommended that all Boot pages containing code be write protected. This could include pages within both the Lower and Upper address regions. It is also recommended to lock the BFSWAP bit (SWAP.BFSLOCK=1).