R8C2K datasheet(116/471 Pages) RENESAS

116 / 471 page

R8C/2K Group, R8C/2L Group

12. Interrupts

Rev.1.10

Dec 21, 2007

Page 99 of 450

REJ09B0406-0110

12.1.3

Special Interrupts

Special interrupts are non-maskable.

12.1.3.1

Watchdog Timer Interrupt

The watchdog timer interrupt is generated by the watchdog timer. For details, refer to 15. Watchdog Timer.

12.1.3.2

Oscillation Stop Detection Interrupt

The oscillation stop detection interrupt is generated by the oscillation stop detection function. For details of the

oscillation stop detection function, refer to 10. Clock Generation Circuit.

12.1.3.3

Voltage Monitor 1 Interrupt

The voltage monitor 1 interrupt is generated by the voltage detection circuit. For details of the voltage detection

circuit, refer to 6. Voltage Detection Circuit.

12.1.3.4

Voltage Monitor 2 Interrupt

The voltage monitor 2 interrupt is generated by the voltage detection circuit. For details of the voltage detection

circuit, refer to 6. Voltage Detection Circuit.

12.1.3.5

Single-Step Interrupt, and Address Break Interrupt

Do not use these interrupts. They are for use by development tools only.

12.1.3.6

Address Match Interrupt

The address match interrupt is generated immediately before executing an instruction that is stored at an

address indicated by registers RMAD0 to RMAD1 when the AIER0 or AIER1 bit in the AIER register is set to

1 (address match interrupt enable). For details of the address match interrupt, refer to 12.4 Address Match

Interrupt.

12.1.4

Peripheral Function Interrupt

The peripheral function interrupt is generated by the internal peripheral function of the MCU and is a maskable

interrupt. Refer to Table 12.2 Relocatable Vector Tables for sources of the peripheral function interrupt. For

details of peripheral functions, refer to the descriptions of individual peripheral functions.

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