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Altera_Forum's avatar
Altera_Forum
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13 years ago

clock loss detection

Hi all! Any ideas to build a fast and robust clock loss detector? A reference clock is available.
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

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The clock to be observed is used for asynchronous resetting only.

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That is not a good choice.

An Asynchronous reset must still meet reset recovery and removal timing requirements. That is why a reset synchronizer is recommended on your reset input into each and every clock domain.

Cheers,

Dave