CHAPTER 12 PORT FUNCTIONS
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User’s Manual U15195EJ5V0UD
Figure 12-15. Example of Noise Elimination Timing
Noise elimination clock
Input signal
Internal signal
Timers 1, 2, 3 rising
edge detection
Timers 1, 2, 3 falling
edge detection
2 clocks 2 clocks
5 clocks
5 clocks
4 clocks
4 clocks
3 clocks
3 clocks
Caution If there are three or less noise elimination clocks while the timer 1 or 3 input signal is high
level (or low level), the input pulse is eliminated as noise. If it is sampled at least four times,
the edge is detected as valid input.
Содержание PD703114
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