Accuracy of the enCoRe's internal clock?

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    Question: When operating as a general microcontroller (non-USB), what is the accuracy of the enCoRe internal clock?

     

    Answer:

    The internal clock circuitry needs USB traffic from the host to provide 6MHz +/- 1.5% tolerance.
    Without USB traffic (general MCU mode), the internal clock accuracy is 6MHz +/- 5%.