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How long is the default bus frequency?

Question asked by MARK BRINKMAN on Feb 16, 2017
Latest reply on Feb 27, 2017 by Kerry Zhou

Using MK20DN512VMD10, on a POR or the assertion of RESET (while powered) what is the bus clock frequency? Using register defaults I believe it to be 20.19MHz. This question arose after reading section '6.2.4 Reset Pin' in the reference manual about RESET being active for at least 128 bus clock cycles. Can this time occur before VDD reaches 3.3V?

 

thanks

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