When Key; Clock Key - HP 54501A Operation Reference

State Trigger
Mode
STATE
TRiGGER
trig'd .auto.]
tv
p a t t e r n
x x
I s n o l
p r e s e n t

clock Key

when Key

The State trigger mode
is selected as a clock edge and the other three channels
one channel
defme a pattern. When the pattern becomes true the HP
on the next clock edge if the�pattern meets setup and hold criteria.
The trlg'd1auto and trigger mode selection keys remain displayed in all
trigg e r modes.
can
select any chann e l to be used as the state clock. Select the
You
channel by pressing the selection key until the d e sired channel is
highlighted. The clock selection
arrow, pointing either up for a positive slope
The when key depicts the desired pattern. The displayed pattern shows
the arrow at the selected clock channel. The other three channels define
the logic pattern that must be satisfied to generate a trigger event using
the H, 1., X convention descnbed in the Pattern Trigger Mode.
is similar to the pattern trigger mode except that
TRIG t.!ENIJ
STATE TRIGGER
t r l g ' C/Duto
e l Qek
prU"nt
i S l l s not
holacff
4BI'I.-32em.
Figure 6-10. State Trigger Menu
is reflected in the next field with an
5450lA
triggers
H
xxx
or
down for a negative slope.
Trigger Menu
6-15