Signal Integrity - Signal Base Value

Now reading version 19.1. For the latest, read: Signal Integrity - Signal Base Value for version 21

Rule category: Signal Integrity

Rule classification: Unary


This rule specifies the maximum voltage level that a signal can settle to in the low state (the base value).

All design rules are created and managed within the PCB Rules and Constraints Editor dialog. For a high-level view of working with the design rules system, see Defining, Scoping & Managing PCB Design Rules.


Default constraints for the Signal Base Value rule.Default constraints for the Signal Base Value rule.

  • Maximum (Volts) - the value for the maximum permissible base value voltage.

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 matches the object(s) being checked.

Rule Application

Batch DRC and during Signal Integrity analysis.


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