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Capturing Data In The Trace Memory
Building a State Diagram
Setting Up the Trigger Sequencer
The next step is to determine the sequence in which the patterns are to
be detected and what is to happen to the trigger and storage qualifier.
Especially when planning for long and difficult sequences, it is
recommended that you use a state diagram like the following:
This state diagram can easily be translated into a sequencer description
table.
Each transition (arrow) in the state diagram requires a row in the table.
The sequencer description table for the example is as follows:
Table 4
84
Example Sequencer Description Table
Trigger
Condition
Storage
Qualifier
Condition
State
Next State
Transition
Condition
0
0
!pt1
0
0
0
1
pt1
1
1
1
1
!pt3
0
pt2
1
0
pt3
0
1
Agilent E2925B PCI Analyzer User’s Guide, August 2002