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Altera_Forum
Honored Contributor
14 years agoState A => State B multicycle path?
Is there a way to tell TimeQuest that all signals launched by State A and captured by State B are part of a multi-cycle path? My combinational path delay is too large so i'm adding a timer to delay m...
Altera_Forum
Honored Contributor
14 years ago --- Quote Start --- But if the output of Latch_FF isn't considered to be 'valid' until T2 then the Downstream_FF won't be 'using' this value until T3 at which point it will be a solid '1' or '0'. --- Quote End --- It is very unsafe design to violate register timing and then wait until it recovers. A register may not end up in the right state if it is violated. This practice is unavoidable across clk domain transfers (but two synchroniser stages are needed in this case)