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K10 Internal Clock Reference

Question asked by Deelip Omana on Feb 26, 2013
Latest reply on Mar 5, 2013 by Monica Arvizu

I am using MK10DX series micro controller. I want to use Internal Clock reference (either 32.768KHz or 4MHZ) to achieve 72MHz core frequency.

1. Is it recommended to use internal clock reference for generating such high core clock (72MHz)?

2. If using Internal clock reference is recommended then which mode should I use (FEI or FBI) if I want to use Fast Internal Clock Reference (4MHz)