validRoutingLayers

Specifies the layers that can be used when routing.

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

validRoutingLayers constraints have a LayerArrayValue that is a list of layers that can be used when routing.

This example sets the valid routing layers to Metal1, Metal2, and Metal3.

Format	Example
Tcl	set_constraint -constraint validRoutingLayers \ -LayerArrayValue {Metal1 Metal2 Metal3}
Virtuoso	interconnect( (validLayers ("Metal1" "Metal2" "Metal3" )) )