Using Pfi Terminals As Timing Input Signals; Exporting Timing Output Signals Using Pfi Terminals - National Instruments X Series User Manual

Chapter 8 PFI

Using PFI Terminals as Timing Input Signals

Use PFI terminals to route external timing signals to many different X Series functions. Each
PFI terminal can be routed to any of the following signals:
x x
• (NI 632 /634
(ai/ConvertClock)
• AI Sample Clock (ai/SampleClock)
• AI Start Trigger (ai/StartTrigger)
• AI Reference Trigger (ai/ReferenceTrigger)
• AI Pause Trigger (ai/PauseTrigger)
• AI Sample Clock Timebase (ai/SampleClockTimebase)
• AO Start Trigger (ao/StartTrigger)
• AO Sample Clock (ao/SampleClock)
• AO Sample Clock Timebase (ao/SampleClockTimebase)
• AO Pause Trigger (ao/PauseTrigger)
• Counter input signals for all counters—Source, Gate, Aux, HW_Arm, A, B, Z
• Counter n Sample Clock
• DI Sample Clock (di/SampleClock)
• DI Sample Clock Timebase (di/SampleClockTimebase)
• DI Reference Trigger (di/ReferenceTrigger)
• DO Sample Clock (do/SampleClock)
Most functions allow you to configure the polarity of PFI inputs and whether the input is edge
or level sensitive.
Note ( NI PXIe-6386/6396 Devices)
several ways from other SMIO devices. For more information about sample clock
rates related to these devices, go to
smio14ms
Exporting Timing Output Signals Using PFI
Terminals
You can route any of the following timing signals to any PFI terminal configured as an output:
x x
• (NI 632 /634
(ai/ConvertClock)
• AI Hold Complete Event (ai/HoldCompleteEvent)
• AI Reference Trigger (ai/ReferenceTrigger)
• AI Sample Clock (ai/SampleClock)
8-2 | ni.com
/6351/6353/6355 / 6361/6363/6365/6375 Devices)
.
/6351/6353/63 55/ 6361/6363/6365/6375 Devices)
PXIe-6386 and PXIe-6396 devices differ in
and enter the Info Code
ni.com/info
AI Convert Clock
*
AI Convert Clock