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Altera_Forum's avatar
Altera_Forum
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18 years ago

Asynchronous signal synchronization

I have seen two circuit for synchronizing Asynchronous signal as the following shows: http://blogimg.chinaunix.net/blog/upfile2/080115160658.jpg Any different between them?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Why don't use the second circuit to synchronise a nReset signal?

Why don't use the first circuit to synchronise general signals?