Renesas R8C/Tiny Series Handbuch PDF herunterladen (Seite 43)

R8C/10 Group

Rev.1.20 Jan 27, 2006 page 33 of 180

REJ09B0019-0120

• Maskable Interrupt: An interrupt which can be enabled (disabled) by the interrupt enable flag (I flag) or

whose interrupt priority can be changed by priority level.

• Non-maskable Interrupt: An interrupt which cannot be enabled (disabled) by the interrupt enable flag

(I flag) or whose interrupt priority cannot be changed by priority level.

Figure 10.1 Interrupts

Interrupt











Software

(Non-maskable interrupt)

Hardware











Special

(Non-maskable interrupt)

Peripheral function

(1)

(Maskable interrupt)











Undefined instruction (UND instruction)

Overflow (INTO instruction)

BRK instruction

INT instruction











Watchdog timer

Oscillation stop detection

Single step

(2)

Address match

NOTES:

1. Peripheral function interrupts are generated by the peripheral functions built in the microcomputer system.

2. Avoid using this interrupt because this is a dedicated interrupt for development support tools only.

10. Interrupt

10.1 Interrupt Overview

10.1.1 Type of Interrupts

Figure 10.1 shows types of interrupts.

10.1 Interrupt Overview

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 198 199

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