Triggering 4
InfiniiVision 7000B Series Oscilloscopes User’s Guide 125
Pattern Trigger
The Pattern trigger identifies a trigger condition by looking for a specified
pattern. This pattern is a logical AND combination of the channels. Each
channel can have a value of 0 (low), 1 (high), or don't care (X). A rising
or falling edge can be specified for one channel included in the pattern.
You can also trigger on a hex bus value as described on page 126.
1 Press the [Pattern] key in the Trigger section of the front panel to
display the PatternTrigger Menu.
2 For each analog or digital channel you want to include in the desired
pattern, press the Channel softkey to select the channel.
This is the channel source for the 0, 1, X, or edge condition. As you
press the Channel softkey (or rotate the Entry knob), the channel you
select is highlighted in the Pattern = line directly above the softkeys
and in the upper- right corner of the display next to “Pat”. External
trigger may also be specified as a channel in the pattern when using
the 2- channel and 4- channel oscilloscopes.
Trigger level
or threshold
Selected
channel
Pattern
trigger
Channel
select
Logic Low Logic Low
or High
Don’t care
Rising or
falling edge
Bus 1 Bus 2
Analog
Channels
Digital
Channels
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