ADLINK DAQe-2214 - Manual (Page 72)

60 Operation Theory
Figure 4-22: Mode2 Operation
Mode3: Single Pulse-width Measurement
In this mode, the counter counts the pulse-width of the signal
on GPTC_GATE in terms of GPTC_CLK. Initial count can be
loaded from software. After the software-start, the counter
counts the number of active edges on GPTC_CLK when
GPTC_GATE is in its active state. After the completion of the
pulse-width interval on GPTC_GATE, GPTC_OUT outputs
high, then current count value can be read-back by software.
Figure 4-23 illustrates the operation where initial count = 0,
count-up mode.
Figure 4-23: Mode3 Operation