R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 58

• Manufacturer Part Number: R5F21133DFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/13 Group
Rev.1.20
REJ09B0111-0120
10. Interrupt
Figure 10.1 Interrupts
10.1 Interrupt Overview
Interrupt
• Maskable Interrupt: An interrupt which can be enabled (disabled) by the interrupt enable flag (I flag) or
• Non-maskable Interrupt: An interrupt which cannot be enabled (disabled) by the interrupt enable flag
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.
10.1.1 Type of Interrupts
Figure 10.1 shows types of interrupts.
Jan 27, 2006
Software
(Non-maskable interrupt)
Hardware
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whose interrupt priority can be changed by priority level.
(I flag) or whose interrupt priority cannot be changed by priority level.
Peripheral function
(Maskable interrupt)
Special
(Non-maskable interrupt)
(1)
Watchdog timer
Oscillation stop detection
Voltage detection
Single step
Address match
Undefined instruction (UND instruction)
Overflow (INTO instruction)
BRK instruction
INT instruction
(2)
10.1 Interrupt Overview