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Altera_Forum
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13 years ago

State 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's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

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You do not want this flop to go metastable.

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Why not? Since I don't care about whether the Latch_FF goes metastable at T1 and since Tsu is guaranteed at T2 I can't see what trouble this could cause? The Latch_FF.Q will be stable after T2 regardless if Latch_FF earlier went metastable at T1.

i'm assuming that a ff in a metastable state will still clock in a correct signal at the next clock cycle. as long as this holds true, i can't see why my design would not work okay.