PD17012_15 Datasheet, PDF (115/320 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17012, 17P012
11.9.3 Interrupt control block
The level of a signal input to the INT pin can be detected by using the INT flag.
This flag is set or reset independently of interrupts; therefore, it can be used as a 1-bit general-purpose input port
when the interrupt function is not used.
The INT flag can also be used as a general-purpose port that can detect the rising or falling edge by reading an
interrupt request flag if the interrupt corresponding to the flag is not enabled.
In this case, however, the interrupt request flag is not automatically reset and must be reset by program.
Also refer to 11.2.1 Configuration and function of Interrupt request flag (IRQxxx).
11.10 Internal Interrupt
Three internal interrupt sources, 12-bit timer, basic timer 1, and serial interface, are available.
11.10.1 Interrupt by 12-bit timer
This interrupt request is issued at fixed time intervals.
For details, refer to 12. TIMER.
11.10.2 Interrupt by basic timer 1
This interrupt request is issued at fixed time intervals.
For details, refer to 12. TIMER.
11.10.3 Interrupt by serial interface
This interrupt request is issued when a serial output or serial input operation has been completed.
For details, refer to 15. SERIAL INTERFACE.
Data Sheet U10101EJ4V0DS
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