Advantech PCM-3780 manual Mode F Waveforms, Non-Retriggerable One-Shot

D.7 Mode F Waveforms

Non-Retriggerable One-Shot

Mode F provides a non-retriggerable, one-shot, timing function. The counter must be armed before it will function. Application of a gate edge to the armed counter will enable counting. When the counter reaches TC, it will reload itself from the Load register. The counter will then stop counting, awaiting a new gate edge.

Note that unlike Mode C, a new ARM command is not needed after TC, only a new gate edge. After application of a triggering gate edge, the gate input is disregarded until TC.

SOURCE
GATE
COUNT	X	L	L-1	L-2	2	1	0	L
VALUE

TC OUTPUT

TC TOGGLED

OUTPUT

Mode F Waveforms

PCM-3780 User Manual 52