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MAN0974-09-EN_XL7_UserManual
March 4
th
, 2019
Page 90 | 185
12.3.4 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. Refer to the
description of these functions.
Period Rising Edges 1
μ
s Counts
–
In this sub-mode the period of the input signal is reported in
one (1)
μ
s units. The period measurement will start on the rising edge of the input.
Period Falling Edges 1
μ
s Counts
–
In this sub-mode the period of the input signal is reported in
1
μ
s units. The period measurement will start on the falling edge of the input.
Figures 12.3-12.4
–
Period Measurement, Rising Edges & Falling Edges
Period from Rising Edge
Period from Falling Edge