User`s manual

62 Operation

4.8.7 Mode 7: Single-Triggered Continuous Pulse Generation

This mode is similar to Mode 5 except that the counter generates contin-

uous periodic pulses with programmable pulse interval and pulse-width

following the first active edge of GPTC_GATE. When the first

GPTC_GATE edge triggers the counter, GPTC_GATE has no effect until

software start is executed again. Generation of two pulses with a pulse

delay of four and a pulse-width of three is shown.

Figure 4-24: Mode 7-Single-Triggered Continuous Pulse

4.8.8 Mode 8: Continuous Gated Pulse Generation

This mode generates periodic pulses with programmable pulse interval

and pulse-width following software start. GPTC_GATE enables/disables

calculation. When GPTC_GATE is inactive, the counter halts the current

count value. Generation of two pulses with a pulse delay of four and a

pulse-width of three is shown.

Figure 4-25: Mode 8-Continuous Gated Pulse

4.8.9 Mode 9: Edge Separation Measurement

Measures the time differentiation between two different pulse signals.

The first pulse signal is connected to GPTC_GATE and the second signal

is connected to GPTC_AUX. Clocks that pass between the rising edge

signal of two different pulses through the 40 MHz internal clock or exter-

nal clock are calculated. You can calculate the time period via the known

44 4321021

S o f t w a r e s t a r t

0321021

032

G a t e

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