HP 1652B Getting Started Manual page 334

If you want to delete a glitch specification, place the cursor on the
asterisk and press SELECT. The asterisk is replaced with a period.
Note ,I$
d
If you are not in Binary base, you will see dollar signs ($$..) in the
Glitch field when you close the pop-up. This indicates that glitches
have been specified; however, the logic analyzer can't display them
correctly unless you have selected Binary for the base.
When more than one glitch has been specified, the logic analyzer
logically ORs them together. In addition, the logic analyzer dRs the
glitch specifications with the edge specifications, then ANDs the result
with the pattern you specified in the Find Pattern fields in order to find
the trigger point. A boolean expression illustrating this is:
(glitch + glitch + edge + edge) * pattern
Note I
81 t
If you select c (less than) in the present for
field, edge and glitch
d
triggering are turned off. The Then find Edge or Glitch field no longer
appears on the screen. The logic analyzer then triggers only on the
pattern specified in the Find Pattern fields.
Timing Trace Specification Menu
18-14
HP 16528/1653B
Front-Panel Reference