Why clock gating timing is difficult to meet?

Q: "Why clock gating timing is difficult to meet?"

"oUsually, data path logic is high\nIf gater is not cloned or not cloned efficiently, can create balancing issues and result in timing vios. If latency is not in control or net and high drive strength cells are don’t use can create difficulty in ckg timing closure. Usually, CKG path having negative skew resulting in difficulty in setup fixes. Negative skew because CTS try to balance skews between CKG fanout and FF before it. "

on 23-08-2025 in CTS

oUsually, data path logic is high

If gater is not cloned or not cloned efficiently, can create balancing issues and result in timing vios.
If latency is not in control or net and high drive strength cells are don’t use can create difficulty in ckg timing closure.
Usually, CKG path having negative skew resulting in difficulty in setup fixes. Negative skew because CTS try to balance skews between CKG fanout and FF before it.

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