SLAZ267AC October 2012 – August 2021 MSP430F5310
PORT Module
Functional
In-system debugging causes the PMALOCKED bit to be always set
The port mapping controller registers cannot be modified when single-stepping or halting at break points between a valid password write to the PMAPWD register and the expected lock of the port mapping (PMAP) registers. This causes the PMAPLOCKED bit to remain set and not clear as expected.
Note: This erratum only applies to in-system debugging and is not applicable when operating in free-running mode.
Do not single step through or place break points in the port mapping configuration section of code.