4-9
IM DLM3054-01EN
Pattern Trigger [ENHANCED]
The instrument triggers on whether the trigger source pattern matches the specified patter or on the pattern
duration. You can also use a clock source.
When a Clock Source Is Specified
Example 1
The results of comparing the combination (Logic) of the trigger source signal pattern (Pattern) and the
specified pattern are sampled on the edges of the clock source, and the instrument triggers at the point of
change in the comparison results (Enter or Exit of the trigger condition (Condition)).
Clock source: CH3
Pattern: CH1 = H, CH2 = L, other channels = X, Logic = AND
Condition: Enter
Not met
Not met
Not met
Not met
Met
Met
CH1
CH2
Trigger
CH3
L H
H
CH1
CH2
H
H
L
L
L
Results of comparisons
that have been sampled
using the clock
Comparison with the
specified pattern
Example 2
When the result of comparing the combination (Logic) of the trigger source signal pattern (Pattern) and the
specified pattern is true or false as specified by the trigger condition (Condition), the instrument triggers on
the edge of the clock source.
L H
H
CH1
CH2
Trigger
CH3
CH1
CH2
H
H
L
L
L
Not met
Not met
Met
Trigger
Clock source: CH3
Pattern: CH1 = H, CH2 = L, other channels = X, Logic = AND
Condition: True
Comparison with the
specified pattern
4 Triggering