Operation Theory
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47
2
2
1
0
3
2
2
1
0
Gate
CLK
Count value
OUT
Software start
Figure 32: Mode 4 Operation
4.2.2.5 Mode 5: 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-executed.
Figure 33 illustrates the generation of a single pulse with a pulse delay of
two and a pulse-width of four.
2
2
1
0
3
2
1
0
Gate
CLK
Count value
OUT
Software start
Figure 33: Mode 5 Operation
4.2.2.6 Mode 6: Re-triggered Single Pulse Generation
This mode is similar to mode5 except that the counter generates a pulse
following every active edge of GPTC_GATE. After the software-start, every
active GPTC_GATE edge triggers a single pulse with programmable delay
and pulse-width. Any GPTC_GATE triggers that occur when the prior pulse
is not completed would be ignored. Figure 34 i llustrates the generation of
two pulses with a pulse delay of two and a pulse-width of four.
