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M16C/6N Group (M16C/6NK, M16C/6NM)
10. Interrupt
10.1 Type of Interrupts
Figure 10.1 shows the types of interrupts.
Software
(Non-maskable interrupt)
Interrupt
Hardware
NOTES:
1. The peripheral functions in the microcomputer are used to generate the peripheral interrupt.
2. Do not normally use this interrupt because it is provided exclusively for use by development
tools.
Figure 10.1 Interrupts
• Maskable Interrupt:
• Non-Maskable Interrupt: An interrupt which cannot be enabled (disabled) by the interrupt enable flag
Rev.2.00
Nov 28, 2005
REJ09B0124-0200
Special
(Non-maskable interrupt)
Peripheral function
(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.
(I flag) or whose interrupt priority cannot be changed by priority level.
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Undefined instruction (UND instruction)
Overflow (INTO instruction)
BRK instruction
INT instruction
_______
NMI
________
DBC
(2)
Oscillation stop and re-oscillation detection
Watchdog timer
Single step
(2)
Address match
(1)
10. Interrupt
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