ATmega128/2556: Reset behavior

Jul 13, 2005 0 Replies

Hi there, hopefully someone knows:



On a system using external RAM, what happens when the reset pin drops ? Is a running write-access to external RAM abborted asynchronously ( = immediately ), or, is such a bus cycle completed before ?



And, what happens to all other I/O pins/ports in this case ? Are they driven high immediately (=asynchronously), or, are they driven high as soon as a bus cycle has completed ?



Thanks in advance, Norbert


Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required