limitRoutingLayers

Limits routing to the layers specified by the constraint ANDed with the layers defined by the viaBarAdjacentSpacing constraint.

limitRoutingLayers Quick Reference

Constraint Type	Simple
Value Types	LayerArrayValue
Database Types	Design, Technology
Scope	net, route, Term, instTerm, design, foundry
Category	Routing

Value Type

limitRoutingLayers constraints have a LayerArrayValue that specifies the layers that can be used for routing. Only layers in the list that are also specified by the viaBarAdjacentSpacing constraint can be used for routing.

Examples

This example restricts routing to layers Metal1 and Metal2.

set_constraint -constraint limitRoutingLayers -LayerArrayValue {Metal1 Metal2}

Related Topics

Routing Constraints

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