ZHCSDF6F October 2014 – December 2021 MSP430FR4131 , MSP430FR4132 , MSP430FR4133
PRODUCTION DATA
The device features memory protection that can restrict user access and enable write protection:
The FRAM is protected by default on PUC. To write to FRAM during code execution, the application must first clear the corresponding PFWP or DFWP bit in System Configuration Register 0 to unprotect the FRAM.