Panasonic GM1 User Manual page 516

12.6 High-speed Counter Function
When "rising edge" and "falling edge" of the same signal are specified as the
capture trigger conditions
● The sign of the capture differential value changes according to the sequence of the capture
enable request bit and capture flag.
● For continuous operation, capture 0 value, capture 1 value, and capture differential value are
overwritten each time a capture operation is completed.
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Sampling capture function (one operation)
● When the specified sampling time elapses after the capture flag turns ON or OFF, the count
value is stored in the capture 0 value and capture 1 value registers and the differential value
is stored in the capture differential value register.
● The sampling capture function is always executable when the control 0 signal is allocated to
the sampling capture function.
● The trigger condition that starts sampling capture can be selected from control 0 signal
(positive logic), control 1 signal (negative logic), and capture enable request bit (positive
logic).
● For one operation, the capture 1 status bit is activated. Note that the capture 0 status bit is
not activated.
12-54 WUME-GM1RTXOP-01