PD17012_15 Datasheet, PDF (110/320 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17012, 17P012
Figure 11-9. Timing Chart of Acknowledging Interrupt (2/3)
(b) If interrupt is kept pending by interrupt enable flag
Instruction
EI
INTE
MOV
POKE
Interrupt
WR, #0001B INTPM1, WR cycle
INT pin
IRQ flag
IP flag
Interrupt acknowledged
Interrupt pending period
Interrupt servicing routine
108
Data Sheet U10101EJ4V0DS