
Chapter 9 | Counters |
Figure
GATE (Start Trigger)
SOURCE
OUT
Figure
Retriggerable Single Pulse Generation
The counter can output a single pulse in response to each pulse on a hardware Start Trigger signal. The pulses appear on the Counter n Internal Output signal of the counter.
You can route the Start Trigger signal to the Gate input of the counter. You can specify a delay from the Start Trigger to the beginning of each pulse. You also can specify the pulse width. The delay and pulse width are measured in terms of a number of active edges of the Source input.
The counter ignores the Gate input while a pulse generation is in progress. After the pulse generation is finished, the counter waits for another Start Trigger signal to begin another pulse generation.
Figure
GATE (Start Trigger)
SOURCE
OUT
Figure
For information about connecting counter signals, refer to the Default Counter/Timer Pinouts section.
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