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Figure 3.37 Frequency measurement by counting number of pulses in fixed
For counter clock signal frequency higher than that specified in the previous section,
this method gives a more accurate result.
3.5.3
One-Shot (Delayed Pulse Generation)
In one-shot mode, when an active edge of gate signal is detected, a pulse will be
generated after the specified number source clock counts. The pulse width is one
period of source clock. Figure 3.38 shows an example of high-pulse, 5-clock delay
one-shot output.
3.5.4
Timer/Pulse
In timer/pulse mode, continuous pulses with specified frequency are generated at
counter output terminal, and an interrupt is also generated with each pulse as shown
in Figure 3.39.
PCI-1716_Series User Manual
duration.
Figure 3.38 One-shot operation.
Figure 3.39 Pulse output and timer interrupt.
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