HP 16550A User Reference page 90

The Trigger Menu
Modifying the User-level Macro
Using the Timer
Timers are like other resource terms in that they are either true or false.
Timers can be set to Start, Stop, Pause, or Continue as the analyzer enters a
sequence level. The two timers are global, so each sequence level has the
ability to control the same timer. The default timer condition in all sequence
levels is Off.
Example
The following statement assigns the "Timer 1" to the secondary "else on"
branch. If the bit pattern is not seen before the timer counts 400ns, the
secondary branch is taken to level 2.
See Also
The "Timer Terms" found later in this chapter for information on how timers
work and how to assign a value to a timer.
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