The Trigger Sequence - Agilent Technologies HP 1660E Series User Manual

Logic Analyzer Concepts

The Trigger Sequence

The Trigger Sequence
HP 1660E/ES/EP and HP 1670E-series logic analyzers have triggering
and data storage features that allow you to capture only the system
activity of interest. Understanding how these features work will help
you set up analyzer trigger specifications that satisfy your
measurement needs.
In both the state and timing analyzers, the trigger sequence acts as a
filtering mechanism, with a minimum of two steps and a maximum of
twelve steps in the state analyzer and ten steps in the timing analyzer.
Some trigger macros may use more than one step. The steps are the
sequence level specifications. The analyzer searches for a trigger
sequence by matching input values on the pods to branch conditions,
which control transitions between sequence levels. You can insert or
delete levels to make the trigger sequence as simple or complex as is
needed for your application.
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