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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:
•
(NI 632
x
/634
x
/6351/6353/6355
/
6361/6363/6365/6375 Devices)
AI Convert Clock
(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)
PXIe-6386 and PXIe-6396 devices differ in
several ways from other SMIO devices. For more information about sample clock
rates related to these devices, go to
ni.com/info
and enter the Info Code
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:
•
(NI 632
x
/634
x
/6351/6353/63
55/
6361/6363/6365/6375 Devices)
AI Convert Clock
*
(ai/ConvertClock)
•
AI Hold Complete Event (ai/HoldCompleteEvent)
•
AI Reference Trigger (ai/ReferenceTrigger)
•
AI Sample Clock (ai/SampleClock)
Summary of Contents for 6368
Page 1: ...PXIe 6368...
