M32CSLASH8B datasheet(112/406 Pages) RENESAS

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M32C/8B Group

11. Interrupts

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 95 of 385

11. Interrupts

11.1

Types of Interrupts

Figure 11.1 shows the types of interrupts.

Figure 11.1

Interrupts

• Maskable interrupts

The I flag and IPL can enable and disable these interrupts.

The interrupt priority order can be changed by using interrupt priority level settings.

• Non-maskable interrupt

These interrupts cannot be disabled regardless of the I flag and IPL settings.

Interrupts

Software

(Non-maskable interrupts)

Hardware

Undefined instruction (UND instruction)

Overflow (INTO instruction)

BRK instruction

BRK2 instruction(2)

INT instruction

Special

(Non-maskable interrupts)

Peripheral function(1)

(Maskable interrupts)

NMI

Watchdog timer

Oscillation stop detection

Voltage monitor

Single step(2)

Address match

DMACII transfer complete

NOTES:

1. Peripheral function interrupts are generated by the on-chip peripheral functions in the MCU.

2. Do not use these interrupts. They are for use with development tool only.

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