SLAZ283AA October 2012 – May 2021 MSP430F5435
SYS Module
Functional
OFIFG is wrongly cleared by a SYSUNIV read
In a situation where more than one NMI flag is set, and software reads the SYSUNIV register, and then the very next memory access is also to the SYS module, then it is possible that an additional, lower priority NMI flag will also be cleared.
After reading the SYSUNIV register, insert an access to an address outside of the SYS module address space before making another access to the SYS module.