M16C65 Datasheet, PDF (267/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
14.3 Types of Interrupt
Figure 14.1 shows Types of Interrupt.
14. Interrupts
Software
(non-maskable interrupt)
Interrupt
Hardware
Special
(non-maskable interrupt)
Peripheral function ⁽¹⁾
(maskable interrupt)
Undefined instruction (UND instruction)
Overflow (INTO instruction)
BRK instruction
INT instruction
NMI
DBC ⁽²⁾
Watchdog timer
Oscillation stop
and reoscillation detection
Voltage monitor 1
Voltage monitor 2
Single-step ⁽²⁾
Address match
Note :
1. The peripheral functions in the MCU are used to generate peripheral interrupts.
2. Do not use this interrupt because it is provided exclusively for use by development tools.
Figure 14.1 Types of Interrupt
• Maskable interrupt
• Non-maskable interrupt
: The interrupt priority can be changed by enabling (disabling) an
interrupt with the interrupt enable flag (I flag) or by using interrupt
priority levels.
: The interrupt priority cannot be changed by enabling (disabling) an
interrupt with the interrupt enable flag (I flag) or by using interrupt
priority levels.
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 232 of 791