HP 54520 Series - State Trigger Mode

Figure 5-8
Trigger
State Trigger Mode
State Trigger Mode
State triggering is similar to pattern triggering, except that you select one
channel as a clock edge, and you set the remaining channels to define a
pattern. Basically state is a selective pattern trigger. The pattern can occur
often, but it is checked for validity only on the selected clock edge. The
thresholds for the channel trigger levels (or H/L levels) are set in the edge
trigger menu.
Clock Softkey
The clock softkey allows you to select any trigger source as the clock. The
trigger source you select as the clock is indicated with an arrow under the
when softkey.
When Softkey
The when softkey sets the other channels to form a trigger pattern. An
arrow indicates which trigger source is the clock, and the direction of the
arrow indicates the selected slope. You can select the polarity of the clock
edge as either rising or falling, and you can select the pattern on the
remaining sources.
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