M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 518

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

Interrupt
Figure 4.6.1. Multiple interrupts
Time
Interrupt priority level = 5
Interrupt priority level = 3
Interrupt priority level = 2
Interrupt request
Interrupt 3
Interrupt 2
Interrupt 1
generated
Reset
Main routine
IPL = 0
I = 0
I = 1
Interrupt 1
Interrupt 3
IPL = 3
IPL = 0
IPL = 2
IPL = 0
REIT
REIT
I = 0
I = 1
I = 1
I = 0
I = 1
Nesting
IPL : Processor interrupt priority level
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Interrupt 2
Interrupt 3
I : Interrupt enable flag
: Automatically executed.
: Be sure to set in software.
IPL = 5
IPL = 3
Main routine instructions
are not executed.
REIT
I = 0
I = 1
Not acknowledged because
of low interrupt priority
Multiple interrupts
Mitsubishi microcomputers
M16C / 62 Group
503