© National Instruments | 2-15
NI 6612 User Manual
DO Pause Trigger Signal
Use the DO Pause Trigger (do/PauseTrigger) signal to mask off samples in a DAQ sequence.
That is, when DO Pause Trigger is active, no samples occur.
DO Pause Trigger does not stop a sample that is in progress. The pause does not take effect until
the beginning of the next sample.
When generating digital output signals, the generation pauses as soon as the pause trigger is
asserted. If the sample clock source is the onboard clock, the generation resumes as soon as the
pause trigger is deasserted, as shown in Figure 2-10.
Figure 2-10. DO Pause Trigger with the Onboard Clock Source
When using any signal other than the onboard clock as the source of your sample clock, the
generation resumes as soon as the pause trigger is deasserted and another edge of the sample
clock is received, as shown in Figure 2-11.
Figure 2-11. DO Pause Trigger with Other Signal Sources
Using a Digital Pause Trigger
To use DO Pause Trigger, specify a source and a polarity. You can route many signals to DO
Pause Trigger. To view the complete list of possible routes, see the Device Routes tab in MAX.
Refer to Device Routing in MAX in the NI-DAQmx Help or the LabVIEW Help for more
information.
Routing DO Pause Trigger Signal to an Output Terminal
DO Pause Trigger can be routed out to any RTSI <0..7>, PXI_Trig <0..7>, PFI <0..39>, or
PXIe-DSTARC terminal.
Pause Trigger
Sample Clock
Pause Trigger
Sample Clock
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