> But will PORTB read the proper state?  Meaning, if I have just read PORTB,
> then can I catch the change that way, besides through the interrupt?


Port B will always read correctly, but the interrupt on change detect logic
can miss changes whenever port B is read.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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