Product Documentation
Virtuoso Space-based Router Constraint Reference
Product Version IC23.1, June 2023

maxGroundCapDiff

Specifies the maximum allowed difference in the amount of ground capacitance between the nets within a pair (or group) as an absolute value in Farads.

maxGroundCapDiff Quick Reference

Constraint Type

Simple

Value Types

FltValue

Database Types

Design, Technology

Scope

design, foundry

Category

Mixed Signal Routing

Value Type

maxGroundCapDiff constraints have a FltValue that represents the maximum allowed difference in the amount of ground capacitance as an absolute value in Farads.

Examples

This example sets the maximum allowed difference in ground capacitance to 1.0 Farad.

set_constraint -constraint maxGroundCapDiff -FltValue 1.0 

Related Topics

Mixed-Signal Routing Constraints

maxGroundCapDiffPercent

Specifies the maximum allowed difference in the amount of ground capacitance between the nets within a pair (or group) as a percentage value.

maxGroundCapDiffPercent Quick Reference

Constraint Type

Simple

Value Types

IntValue

Database Types

Design, Technology

Scope

design, foundry

Category

Mixed Signal Routing

Value Type

maxGroundCapDiffPercent constraint IntValue that represents the maximum allowed difference in the amount of ground capacitance between the nets as a percentage value.

Examples

This example sets the maximum allowed difference in ground capacitance to 15%.

set_constraint -constraint maxGroundCapDiffPercent -IntValue 15 

Related Topics

Mixed-Signal Routing Constraints

maxSingleCoupling

Specifies the maximum allowed amount of coupling capacitance from all neighbor nets that only couple to one of the nets in a pair as an absolute value in Farads.

maxSingleCoupling Quick Reference

Constraint Type

Simple

Value Types

FltValue

Database Types

Design, Technology

Scope

design, foundry

Category

Mixed Signal Routing

Value Type

maxSingleCoupling constraints have a FltValue that specifies the maximum coupling capacitance as an absolute value in Farads.

Examples

This example sets the maximum amount of coupling from all neighbor nets to a single net to 1.0 Farad.

set_constraint -constraint maxSingleCoupling -FltValue 1.0 

Related Topics

Mixed-Signal Routing Constraints


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