29.3.3 Committing of the Write Cache

A single-page write cache is used internally to buffer data written to pages in order to reduce the number of physical writes required to store the user data, and to preserve the physical memory lifespan. As a result, it is important that the write cache is committed to physical memory as soon as possible after a BOD low power condition, to ensure that enough power is available to guarantee a completed write so that no data is lost.

The write cache must also be manually committed to physical memory if the user application is to perform any NVM operations using the NVM controller directly.