Chapter4 ConnectingSignals
©NationalInstruments Corporation 4-5 NI6013/6014 User Manual
PFI8/GPCTR0_SOURCE DGND Input
Output
PFI8/Counter0 Source—As an input, this signal is a PFI.
Asan output, this signal is the GPCTR0_SOURCE signal.
Thissignal reflects the actual source connected to the
general-purposecount er 0.
PFI9/GPCTR0_GATE DGND Input
Output
PFI9/Counter0 Gate—As an input, this signal is a PFI.
Asan output, this signal is the GPCTR0_GATE signal.
Thissignal reflects the actual gate signal connected to the
general-purposecount er 0.
GPCTR0_OUT DGND Output Counter0 Output—This output is from the general-purpose
counter0 output.
FREQ_OUT DGND Output FrequencyOutput—This output is from the frequency
generatoroutput.
*Indicatesthat the signal is active low.
1Notavailable on the NI 6013.
Table4-3. I/OSignal Summary for the NI 6013/6014
SignalName
Signal
Typeand
Direction
Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mAat V)
Sink
(mA
atV)
Rise
Time
(ns) Bias
ACH<0..15> AI 100GΩ
in
parallel
with
100pF
25/15 — — — ±200pA
AISENSE AI 100GΩ
in
parallel
with
100pF
25/15 — — — ±200pA
AIGND AO — — — — — —
DAC0OUT
(NI6014only)
AO 0.1ΩShort-circuit
toground
5at10 5at
–10
4
V/µs
—
DAC1OUT
(NI6014 only)
AO 0.1ΩShort-circuit
toground
5at10 5at
–10
4
V/µs
—
AOGND AO — — — — — —
DGND DO — — — — — —
VCC DO 0.1ΩShort-circuit
toground
1Afused — — —
Table4-2. SignalDescriptions for I/O Connector Pins (Continued)
SignalName Reference Direction Description