QSPI NOR flash on top STM32, may I know if QSPI NOR flash can work half as memory map and half as block mode ?

[jiangpen]

A file system runs on half of NOR flash (64M) as raw block mode, and the memory map mode (32M) run other half of NOR flash (32M run code as XIP). These two modes don't need work same time.

May I know if that is possible?

Thanks a lot for advise.