176 6000 Series Oscilloscope User’s Guide
4 Triggering the Oscilloscope
• Pattern 2 Entered — A pattern is entered on the last edge that
makes the pattern true (logical AND).
• Pattern 2 Exited — A pattern is exited on the first edge that
makes the pattern false (logical NAND).
• Edge 2
• Pattern 2 and Edge 2
• Nth Edge 2
• Nth Edge 2 (no re-find)
2 Press the Trigger: softkey and select a stage to trigger on.
3 To define the term(s) used in the Trigger on: stage, press the
Term softkey and select the pattern or edge term displayed in
the Trigger: softkey.
4 If you select a pattern term, each channel in the pattern must
be set to a H (high), L (low), or X (don't care).
a Press the Channel softkey (or rotate the Entry knob on
mixed-signal oscilloscopes) to select the channel.
b Press the L H X softkey to set a level for the channel.
c Repeat for all channels in the pattern.
5 If you select an edge term, one channel must be set to a rising
edge or a falling edge. All other channel edges will be set to
don’t care (X).
a Press the Channel softkey (or rotate the Entry knob on
mixed-signal oscilloscopes) to select the channel.
The channel you select is shown in the upper-right corner
of the display next to “Seq”.
b Then press
the X softkey to select rising edge or
falling edge. All other channel edges will be defaulted
to don’t care.
6 When you set a Trigger on: condition to trigger on Edge 2, you
can also select which occurrence of Edge 2 to trigger on.
a Make sure Nth Edge 2 or Nth Edge 2 (no re-find) is selected in
the Trigger: softkey.
When Nth Edge 2 is selected, if the Find event occurs again
before the Count (N) event is satisfied, Count (N) will be
reset to zero.
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