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

crossTalkNeighborIndex

Associates a cost for routing nets on same-layer parallel wires within a neighborhood which can affect signal integrity by introducing crosstalk. The constraint is supported only as a group-to-group constraint.

crossTalkNeighborIndex Quick Reference

Constraint Type

Simple

Value Types

IntValue

Database Types

Design

Scope

design, foundry

Category

Mixed Signal Routing

Value Type

The crossTalkNeighborIndex constraint has an IntValue of 0, 1, or 2, where 0 is low cost for good neighbors, and 2 is high cost for groups that should be routed apart.

Parameters

None

Related Topics

Mixed-Signal Routing Constraints

Classifying Neighbor Nets

Avoiding Crosstalk

Half-Shielding Nets


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