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UPD784938 Datasheet, PDF (258/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers
CHAPTER 9 TIMER/EVENT COUNTER 0
Figure 9-40. Interrupt Request Servicing that Calculates Pulse Width
INTP3 interrupt
Calculate pulse width
Yn = CR02 – Xn
Store capture value in memory
Xn+1 ← CR02
RETI
258
Preliminary User’s Manual U13987EJ1V0UM00