SLAZ283AA October 2012 – May 2021 MSP430F5435
UCS Module
Functional
Non-monotonic behavior of DCO
When FLL modulation is enabled, the modification of DCO & MOD bits in the UCSCTL0 register can result in an unexpected increment or decrement of the DCO tap. This leads to the non-monotonic behavior of the DCO.
Modify the DCO & MOD values when modulation is disabled (DISMOD = 1).
BIS.W #DISMOD, &UCSCTL1
MOV.W #-YOUR_DCO_MOD_SETTING-, &UCSCTL0
BIC.W #DISMOD, &UCSCTL1