Renesas 4514 - Manual (Page 122)

APPLICATION
2.2 Interrupts
2-19 4513/4514 Group User’s Manual
Fig. 2.2.3 INT1 interrupt operation example
P3 1 /INT1
P3 1 /INT1
“H”
“H”
“L”
“L”
An interrupt occurs after the valid waveform “falling” is detected.
An interrupt occurs after the valid waveform “rising” is detected.