ADLINK DAQe-2502 - Manual (Page 59)

Operation Theory 49
Mode4: Single Gated Pulse Generation
This mode generates a single pulse with programmable delay
and programmable pulse-width following the software start.
These software programmable parameters could be specified
in terms of periods of the GPTC_CLK. GPTC_GATE is used to
enable/disable counting. When GPTC_GATE is inactive, the
counter halts the counting. Figure 4-20 illustrates the genera-
tion of a single pulse with pulse-delay of two and pulse-width of
four.
Figure 4-20: Mode4 Operation
Mode5: Single Triggered Pulse Generation
This function generates a single pulse with programmable
delay and programmable pulse-width following an active
GPTC_GATE edge. These software programmable parame-
ters can be specified 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-executed. Figure 4-21 illustrates the generation of a single
pulse with pulse delay of two and pulse-width of four.
Figure 4-21: Mode5 Operation