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Clock Loss Interrupt Graceful Transition

Question asked by Nick Borton on Nov 8, 2016
Latest reply on Nov 16, 2016 by Gordy Carlson



I am currently working on a set of custom boards with K60F120 micros. I have a few corner  cases in operation in which the "main" clock on OSC0 may be lost. I would like to enable the Clock Loss interrupt to gracefully transition to a different MCG state without resetting the device.


From which states can one successfully transition to in the interrupt? Also, when a clock loss occurs, how is the device clocked until a new source is selected? Unless I missed it, I did not see any of this documented in the K60 reference manual.