150 Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide
10 Triggers
Pulse width
trigger < qualifier
time set softkey
• When the less than (<) qualifier is selected, the Entry knob sets the
oscilloscope to trigger on a pulse width less than the time value
displayed on the softkey.
• When the time range (><) qualifier is selected, the Entry knob sets the
upper time range value.
Pulse width
trigger > qualifier
time set softkey
• When the greater than (>) qualifier is selected, the Entry knob sets the
oscilloscope to trigger on a pulse width greater than the time value
displayed on the softkey.
• When the time range (><) qualifier is selected, the Entry knob sets the
lower time range value.
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 "Hex Bus Pattern
Trigger" on page 153.
1 Press the [Trigger] key.
2 In the Trigger Menu, press the Trigger softkey; then, turn the Entry knob
to select Pattern.
3 Press the Qualifier softkey; then, turn the Entry knob to select from the
pattern duration qualifier options:
• Entered – when the pattern is entered.
• < (Less Than) – when the pattern is present for less than a time
value.
• > (Greater Than) – when the pattern is present for greater than a
time value. The trigger occurs when the pattern exits (not when the
> softkey time value is exceeded).
• Timeout – when the pattern is present for greater than a time value.
In this case, the trigger occurs when the > softkey time value is
exceeded (not when the pattern exits).
• >< (In Range) – when the pattern is present for a time within a range
of values.
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