Mitsubishi Electric M32R Series User Manual page 112

4
Hardware
preprocessing
Program
being executed
•
•
•
•
EIT
•
event •
•
occurs
•
•
•
•
•
•
•
Hardware
postprocessing
Figure 4.12.3 Example of EIT Processing
EIT vector entry
~ ~
BRA instruction
~ ~
EIT handler
PC BPC
PSW (B)PSW
(B)PSW PSW
BPC PC
4.12 Example of EIT Processing
(Any event other than SBI)
Save BPC to stack
Save PSW to stack
Save general-purpose
registers to stack
Processing by EIT
handler
Restore general-
purpose registers
Restore PSW
Restore BPC
RTE
4-24
(SBI)
System Break
Interrupt processing
Program terminated
or system reset
Ver.0.10
EIT