Teledyne LeCroy WaveRunner 6 Zi and 12-Bit HRO Getting Started Manual User Manual
Page 80
WaveRunner 6 Zi and 12-Bit HRO
72
922136-00 Rev A
Touching this MultiStage trigger type shows the additional MultiStage
types on the dialog. Select from Cascaded, QualFirst, and Qualified as
follows:
C
ASCADED
The Cascaded trigger allows you to define successive trigger Stages
(referred to as Stage A, B, C, and D) as arm, trigger/arm, trigger/arm,
trigger criteria, respectively.
Q
UAL
F
IRST
In single trigger mode, QualFirst arms the oscilloscope on the A event, and
then triggers on all subsequent B events.
Note
: This button is enabled when using the sequence sampling mode. It is
commonly used in sequence mode for disk drive applications with the index pulse
defined as the A qualifier signal and the servo gate signal as the B triggering
events.
Q
UALIFIED
A-B
In single trigger mode, Qualify A-B arms the oscilloscope on the A event,
and then triggers on the B event. If the oscilloscope is in Normal trigger
mode, it automatically resets after the B event. Arm trigger events can be
set for Edge, Pattern, State, and PatState. State is briefly explained as
follows:
State
The State trigger is a level-qualified trigger which requires that the
qualifying signal remain above or below a specified voltage level for a
trigger to occur. For State trigger, you specify the time or number of events
after the signal has gone above or below the voltage level when you want
the trigger to occur.