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AI GND
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—
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Analog Input Ground—These terminals are the reference point for single-ended AI measurements in RSE mode and the bias current return point for
DIFF measurements. All ground references—AI GND, AO GND, and D GND—are connected on the device.
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AI <0..15>
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Varies
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Analog Input Channels—
For single-ended measurements, each signal is an analog input voltage channel. In RSE mode, AI GND is the reference for these signals. In NRSE mode, the reference for each AI signal is an AI SENSE.
For differential measurements, AI 0 and AI 8 are the positive and negative inputs of differential analog input channel 0. Similarly, the following signal pairs also form
differential input channels: AI <1,9>, AI <2,10>, and so on.
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AI SENSE
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—
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Analog Input Sense—In NRSE mode, the reference for each AI <0..15> signal is AI SENSE.
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AO <0,1>
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AO GND
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Analog Output Channels—These terminals supply voltage output.
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AO GND
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—
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Analog Output Ground—AO GND is the reference for AO. All ground references—AI GND, AO GND, and D GND—are connected on the device.
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D GND
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—
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Digital Ground—D GND supplies the reference for digital channels, PFI, and +5 V. All ground references—AI GND, AO GND, and D GND—are connected on the device.
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P0.<0..7>
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D GND
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Port 0 Digital I/O Channels—You can configure each signal individually as an input or output.
P0.6 and P0.7 can also control the up/down signal of Counters 0 and 1, respectively.
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AO EXT REF
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D GND
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External Reference—This pin is the external reference input for the AO circuitry.
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+5 V
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D GND
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+5 V Power Source—These terminals supply a +5 V power source.
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AI HOLD COMP
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D GND
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AI Hold Complete Event Signal——When enabled, this signal pulses once for each A/D conversion in sample mode. The low-to-high edge indicates when the input signal can be removed from the input or switched to another signal.
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EXT STROBE
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D GND
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External Strobe Signal—Do not connect signals to this terminal.
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PFI 0/AI START TRIG
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D GND
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Programmable Function Interface or AI Start Trigger Signal—As an input, this terminal is a PFI. As an output, this pin is the ai/StartTrigger signal. In applications with pre-trigger samples, a low-to-high transition indicates the initiation of the pre-trigger samples.
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PFI 1/AI REF TRIG
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D GND
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Programmable Function Interface or AI Reference Trigger Signal—As an input, this terminal is a PFI.
As an output, this terminal emits the AI Reference Trigger signal. In applications with pre-trigger samples, a low-to-high transition indicates the initiation of the pre-trigger samples. AI Reference Trigger is not used in applications with post-trigger samples.
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PFI 2/AI CONV CLK
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D GND
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Programmable Function Interface or AI Convert Clock Signal—As an input, this terminal is a PFI. As an output, this terminal is the AI Convert Clock signal. A high-to-low edge on AI CONV indicates that an A/D conversion is occurring.
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PFI 3/CTR 1 SOURCE
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D GND
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Programmable Function Interface or Counter 1 Source Signal—As an input, this terminal is a PFI.
As an output, this terminal emits the selected Ctr1Source signal. This signal reflects the actual source signal connected
to Counter 1.
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PFI 4/CTR 1 GATE
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D GND
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Programmable Function Interface or Counter 1 Gate Signal—As an input, this terminal is a PFI.
As an output, this terminal emits the selected Ctr1Gate signal. This signal reflects the actual gate signal connected to Counter
1.
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PFI 5/AO SAMP CLK*
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D GND
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Programmable Function Interface or AO Sample Clock Signal—As an input, this terminal is a PFI.
As an output, this terminal emits the AO Sample Clock signal. A high-to-low transition of this signal indicates that the AO primary group is being updated.
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PFI 6/AO START TRIG
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D GND
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Programmable Function Interface or AO Start Trigger Signal—As an input, this terminal is a PFI.
As an output, this terminal emits the AO Start Trigger signal. In timed AO sequences, a low-to-high transition indicates the initiation of the waveform generation.
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PFI 7/AI SAMP CLK*
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D GND
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Programmable Function Interface or AI Sample Clock Signal—As an input, this terminal is a PFI.
As an output, this terminal emits the AI Sample Clock signal. This terminal pulses once at the start of each AI sample in the interval sample. A high-to-low transition of this signal indicates the initiation of the waveform generation.
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PFI 8/CTR 0 SOURCE
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D GND
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Programmable Function Interface or Counter 0 Source Signal—As an input, this terminal is a PFI.
As an output, this terminal emits the Ctr0Source signal. This signal reflects the actual source signal connected to Counter
0.
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PFI 9/CTR 0 GATE
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D GND
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Programmable Function Interface or Counter 0 Gate Signal—As an input, this terminal is a PFI.
As an output, this terminal emits the Ctr0Gate signal. This signal reflects the actual gate signal connected to Counter 0.
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CTR 1 OUT
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D GND
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Counter 1 Output Signal—As an input, this terminal can be used to route signals directly to the RTSI bus. As an output, this
terminal emits the Ctr1InternalOutput signal.
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CTR 0 OUT
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D GND
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Counter 0 Output Signal—As an input, this terminal can be used to route signals directly to the RTSI bus. As an output, this
terminal emits the Ctr0InternalOutput signal.
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FREQ OUT
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D GND
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Frequency Output Signal—This output is from the frequency generator.
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