Rohde & Schwarz RTE - Page 917

Mixed signal option (MSO, R&S RTE-B1)
R&S
®
RTE
917User Manual 1326.1032.02 ─ 20
ical expression, if "Logic" is used for trigger source. For a parallel bus trigger source,
the pattern is defined by setting the state of each digital channel.
The timing starts when the pattern comes true. The decision level is the logical thresh-
old.
Figure 14-6: Pattern trigger settings for trigger source = parallel bus and timeout
Channel states
Available for "Trigger Source"= "Par. Bus1/2/3/4"
For each digital channel that is used in the bus, set the required state: 1, 0, or X (do
not care).
Remote command:
TRIGger<m>:PARallel:PATTern:BIT<0..15> on page 1918
Logical expression
Defines a logic combination of several digital channels as trigger condition if "Logic" is
set for "Source". The "Qualification Editor" supports the entry of the expression.
Remote command:
TRIGger<m>:PARallel:TIMeout:EXPRession[:DEFine] on page 1913
TRIGger<m>:PARallel:STATe:EXPRession[:DEFine] on page 1913
TRIGger<m>:PARallel:PATTern:EXPRession[:DEFine] on page 1913
TRIGger<m>:PARallel:SPATtern:EXPRession[:DEFine] on page 1913
Mode: Off, Timeout, Width
Sets the mode of the timing condition.
"Off"
No timing condition, only the logical pattern condition is relevant.
"Timeout"
Defines a minimum time qualification to avoid triggering on unstable
or transitional conditions. Even in best-designed systems, there are
slight delays between the signal when digital signals change states.
This means that there are always transitional state conditions when
signals are switching.
See "Timeout settings" on page 918 for a description of the settings.
The trigger event occurs when the pattern stays unchanged for the
specified time.
Trigger