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Altera_Forum
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14 years ago

Setup Hold times for Cyclone IV Flops

Hi All, I have looked in Cyclone IV Handbook and did not find T'su or T'hold for the flops. Is this info available somewhere? Can I safely assume t'hold to be zero? I am also trying to ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

TimeQuest handles all of this. You need to constrain your clocks coming in, the PLL if you have one, and might have some multicycles on paths that take multiple clock cycles(but the default analysis will be more restrictive, so if it passes that, it will pass with multicycles). Go to www.alterawiki.com, click on Popular Pages, and there is a TimeQuest User Guide I put together, which might be a good place to get started.