ADLINK PXI-2208 - Manual (Page 80)

68 Operation Theory
Mode4: Single Gated Pulse Generation
This mode generates a single pulse with programmable delay
and programmable pulse-width following the software-start.
The two programmable parameters could be specified in terms
of periods of the GPTC_CLK input by software. GPTC_GATE
is used to enable/disable counting. When GPTC_GATE is inac-
tive, the counter halts the current count value. Figure 4-26 illus-
trates the generation of a single pulse with a pulse delay of two
and a pulse-width of four.
Figure 4-26: Mode4 Operation
Mode5: Single Triggered Pulse Generation
This function generates a single pulse with programmable
delay and pro-grammable pulse-width following an active
GPTC_GATE edge. You could specify these programmable
parameters in terms of periods of the GPTC_CLK input. Once
the first GPTC_GATE edge triggers the single pulse,
GPTC_GATE takes no effect until the software-start is re-exe-
cuted. Figure 4-27 illustrates the generation of a single pulse
with a pulse delay of two and a pulse-width of four.