15.2.2.5 WRERR Bit

The WRERR bit can be used to determine if a write error occurred. WRERR will be set if one of the following conditions occurs:

If WR is set while the NVMADRH:NMVADRL points to a write-protected DFM address
A Reset occurs while a self-write operation was in progress
An unlock sequence was interrupted

The WRERR bit is normally set by hardware, but can be set by the user for test purposes. Once set, WRERR must be cleared in software.

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.