Triggering 4
InfiniiVision 7000B Series Oscilloscopes User’s Guide 117
Edge Trigger
The Edge trigger type identifies a trigger by looking for a specified edge
(slope) and voltage level on a waveform. You can define the trigger source
and slope in this menu. The slope can be set to rising edge or falling edge,
and can be set to alternating edges or either edge on all sources except
Line. The trigger type, source, and level are displayed in the upper- right
corner of the display.
1 Press the [Edge] key in the Trigger section of the front panel to display
the Edge Trigger Menu.
2 Press the Slope softkey and select rising edge, falling edge, alternating
edges, or either edge. The selected slope is displayed in the upper- right
corner of the display.
Slope
Trigger
source
Trigger level
or threshold
Trigger
source
Edge
Alternating edge mode is useful when you want to trigger on both edges of a clock (for
example, DDR signals). Either edge mode is useful when you want to trigger on any activity
of a selected source. All modes operate up to the bandwidth of the oscilloscope except
Either edge mode, which has a limitation. Either edge mode will trigger on Constant Wave
signals up to 100 MHz, but can trigger on isolated pulses down to 1/(2*oscilloscope's
bandwidth).
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