M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 156

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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154
The timing example of digital noise elimination at an input pin of INTP6 and the timer ENC.
Caution If there are four or less noise elimination clocks while INTP6 and timer ENC input signals are
Noise elimination clock
INTP6 and timer
INTP6 and timer
edge detection
edge detection
Internal signal
high level (or low level), the input pulse is eliminated as noise. If it is sampled at least five
times, the edge is detected as valid input.
Input signal
ENC falling
ENC rising
Figure 4-26. Example of Noise Elimination Timing
2 clocks 2 clocks
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16543EJ4V0UD
3 clocks
3 clocks
4 clocks
4 clocks
Sampling
5 times
5 clocks
Sampling
5 times
5 clocks