Horner-apg XL7 OCS Manual do Utilizador descarregar pdf (Página 46)

XL7 User Manual

Width High 1 µs Counts – In this sub-mode the accumulator value will contain the number of 1 µs counts

the pulse is high.

Width Low 1 µs Counts - In this sub-mode the accumulator value will contain the number of 1 µs counts

the pulse is low.

Figures 11.1-11.2 - Pulse Width Measurements, High & Low

11.3.4 Period Measurement

In period measurement mode, the high-speed input can measure the period of a pulse stream in one of

two modes and provides a continuous indication of the last sampled value. In this mode the Disable and

Latch special functions are allowed. Please see section 11.2 for a description of these functions.

Period Rising Edges 1 µs Counts – In this sub-mode the period of the input signal is reported in one (1)

µs units. The period measurement will start on the rising edge of the input.

Period Falling Edges 1 µs Counts – In this sub-mode the period of the input signal is reported in one (1)

µs units. The period measurement will start on the falling edge of the input.

Figures 11.3-11.4 – Period Measurement, Rising Edges & Falling Edges

Width High

Width Low

Period from Rising Edge

Period from Falling Edge

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Horner-apg XL7 OCS Manual do Utilizador Página 46