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Altera_Forum
Honored Contributor
14 years agoStratix IV FF Sync V/s Async Clear
Is there any distinct disadvantage to using the synchronous clear in the Flip/Flops in Stratix IV (like restricted no. per LAB or using more logic or slower timing etc?) versus using the async. c...
Altera_Forum
Honored Contributor
14 years agoBesides better resource utilization, there are other reasons to use the asynchronous clear (with synchronized release) as the system wide reset.
- it's the only means to achieve defined output states before the clock is running - built-in resources like PLLs or Altera IP are relying on asynchronous reset