Re: Clock gating
Hi,
Clock gating does affect critical path depending on clocking. Actually, clock gating results in a small delay Δ to the gated clock. If this same signal will be used to clock two DFFs of a synchronous structure, the critical path remain the same.
However if you will use The original clock to synch the first DFF and the gated clock to synch the second DFF the critical path increases or decreases by the amount of the delay due to the gating.