Interrupt Program - Mitsubishi Electric Q01UCPU User Manual

2.9

Interrupt Program

An interrupt program is from an interrupt pointer (I ) to the IRET instruction.
The interrupt pointer (I ) number varies depending on the interrupt factor. (
)
4.11
When an interrupt factor occurs, the interrupt program of the interrupt pointer number corresponding to that factor
is executed. (Interrupt programs are executed only when the interrupt factor occurs.
Main routine
program
Interrupt
program (I0)
Interrupt
program (I29)
80
Main routine
program
I0
Interrupt
program (I0)
I29
Interrupt
program (I29)
Occurrence of the
interrupt factor for I0
Execution
Execution
EI
Indicates the end
of the main routine
FEND
program.
IRET
IRET
END
Interrupt pointer
Occurrence of the
interrupt factor for I29
Execution
IRET
Execution
IRET
Page 408, Section
Execution
Time