4 mode 4: single-gated pulse generation, 5 mode 5: single-triggered pulse, Mode 4: single-gated pulse generation – ADLINK USB-1903 User Manual
Page 74: Mode 5: single-triggered pulse, Figure 4-20, Mode 3-single pulse-width measurement, Figure 4-21, Mode 4-single-gated pulse

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Operation
Figure 4-20: Mode 3-Single Pulse-Width Measurement
4.8.4
Mode 4: Single-Gated Pulse Generation
This mode generates a single pulse with programmable delay and
programmable pulse-width following software start. The two pro-
grammable parameters can be specified in terms of periods of the
GPTC_CLK input by the software application. GPTC_GATE
enables/disables calculation. When GPTC_GATE is inactive, the
counter halts the current count value. Generation of a single pulse
with a pulse delay of two and a pulse-width of four is shown.
Figure 4-21: Mode 4-Single-Gated Pulse
4.8.5
Mode 5: Single-Triggered Pulse
This mode generates a single pulse with programmable delay and
programmable pulse-width following an active GPTC_GATE edge.
These programmable parameters can be specified in terms of
0
0
1
2
3
4
5
5
5
Gate
CLK
Count value
Software start
2
2
1
0
3
2
2
1
0
Gate
CLK
Count value
OUT
Software start