Agilent Technologies 1670E Series, User Manual

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Logic Analyzer Reference
The Analyzer Trigger Menu
After the assignment menu closes, you may see "$" indicators in the
field display. A "$" indicates the assignment can’t be displayed in the
selected base because of Don’t Cares. When you display the
assignment in binary, however, you can see the actual pattern.
Range terms. Range terms require an upper and lower bit pattern
boundary. The range is recognized as the data that is numerically
between or on the two specified boundaries. In addition, the range
must be contained in a single label across a single pod pair, with no
clock bits allowed.
Timer terms. Timers are either true or false. Timers start as you enter
the sequence level, and when the count expires, the it becomes true. If
a timer is paused in one level, it must be continued in another level
before it can count through.
As more sequence levels are added, the timer status in the new levels
defaults to Off. Timers must be continued or started in each new level
if it is appropriate. When a timer expires or stops, its count resets to
zero.
Combination of terms
Combination terms are configured and selected from within trigger
sequence levels. All user-defined resource terms can be combined to
create complex qualifiers that occupy a single assignment field space.
When you select the term field in a Sequence Level menu, a pop-up
selection list appears. If you then select "Combination," a logical
assignment menu appears. Use this menu to turn on resource terms
and input them into a chain of logical operators.
When the combination is placed in the assignment field, if the term is
too long to fit in the assignment field, the display is truncated.