AnsweredAssumed Answered

MPC55xx,FMPLL,Loss-of-clock

Question asked by wenby chen on Dec 24, 2017
Latest reply on Jan 2, 2018 by David Tosenovjan

Hello NXP:

MPC55xx,External Reference Mode-- 16MHz , and the system clock is 132MHz.

The other SYNCR's configuration is as follows:

FMPLL_SYNCR[LOCEN]  = 0;

FMPLL_SYNCR[LOLRE]  = 0;

FMPLL_SYNCR[LOCRE]  = 0

If the external  clocks fall below the threshold frequency, what the system will happen ?  stop ,or enter self-clock mode ?

Outcomes