[STA] Transition Delay Calculation

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ivlsi

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Hi All,

As for the NLDM Tables they represent propagation delay on the cells.

As for WLM or RC-extraction, they represent propagation delay on the nets.

But, how Transition Delay is represented for STA calculations.

Thank you!
 

NLDM tables represent transition cell delay in the same way (the similar tables), as for propagation delay. You know, more output load -> more propagation delay -> more transition delay of the cell. You can try report_delay_calculation in PrimeTime to see how the tool calculate real delay/transition based on the NLDM tables.
 

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