1 RUNNING A PROGRAM
1.7 Interrupt Program
67
1
1.7 Interrupt Program
A program from an interrupt pointer (I) through the IRET instruction.
*1 Only one interrupt program can be created with a single interrupt pointer number.
*2 The interrupt pointers are not required to be defined in an ascending order.
When an interrupt factor occurs, the interrupt program corresponding to its interrupt pointer number is executed ( Page
364 The priority for the interrupt pointer numbers and interrupt factors). However, before that, interrupt must be enabled by
using the EI instruction.
Making a program a standby type allows it to be managed as a separate program. ( Page 63 Standby
type program)
(1) This indicates the end of the main routine program.
I0: Interrupt factor for I0
I29: Interrupt factor for I29
FEND
EI
IRET
IRET
END
I0
I29
(1)
Main routine program
Interrupt program (I0)
Interrupt program (I29)
Interrupt pointer
*1*2
IRET
IRET
I0
I29
Main routine program
Interrupt program (I0)
Interrupt program (I29)
Execution
Execution Execution Execution
Execution
Time
To Next Page
Loading...
