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Honored Contributor
Honored ContributorQuestion about sync/async reset and recovery/removal
I understand most of the recommendation when implementing reset scheme is using asynchronous assertion and synchronous deassertion. My question is why do we need sync deassertion given that it is alr...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- Altera(not everbody) recommends that and is meant to help achieve recovery/removal timing requirements so the two are not alternatives. Does that mean it is not necessary to have a synchronous assertion since it has already been taken into account in recovery/removal? Which double synchroniser you refer to? --- Quote End --- I was referring to the output of the synchronizer that feed into the aclr port of the system. Again, I do not understand why is it 'synchronous' since it is feeding the aclr port (which again is under recovery/removal) http://1.bp.blogspot.com/_jwnl_zs6958/sdkgixi7uyi/aaaaaaaaawq/zvzv07l0pou/s320/sync_deass_async_***.jpg
