Slope - Falling Edge

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Rule categorySignal Integrity

Rule classification: Unary

Summary

Specifies the maximum allowable slope time on the falling edge of the signal. Falling edge slope is the time it takes for a signal to fall from the threshold voltage (VT), to a valid low (VIL). Constraints.

Constraints

Default constraints for the Slope - Falling Edge rule.

  • Maximum (seconds) - the value for the maximum permissible falling edge slope time. (Default = 1.000ns).

 

How Duplicate Rule Contentions are Resolved

All rules are resolved by the priority setting. The system goes through the rules from highest to lowest priority and picks the first one whose scope expression(s) match the object(s) being checked.

Rule Application

Batch DRC and during Signal Integrity analysis.

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