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Question about Quail pin


#1

I was looking at a Quail pinout diagram by ZERYNTH.
All of the PWM pins are also marked ICU.

Does anyone know what ICU means?

Thanks.


#2

Input Capture Unit


#3

Thank You for the reply


#4

gezzz, have to admit Ive not heard of this before
Is this what that means?

Cool feature!