4
4-21
Ver.0.10
Figure 4.10.1 Example of a Return Address for Trap (TRAP)
(4) Branching to the EIT vector entry
Control branches to the addresses H'0000 0040 through H'0000 007C in the user space.
This is the last operation performed in hardware preprocessing by the M32R/E.
(5) Jumping from the EIT vector entry to the user-created handler
The M32R/E executes the "BRA" instruction written at addresses H'0000 0040 through
H'0000 007C of the EIT vector entry by the user to jump to the start address of the user-
created handler. At the beginning of the EIT handler you created, first save the BPC and
PSW registers and the necessary general-purpose registers to the stack.
(6) Returning from the EIT handler
At the end of the EIT handler, restore the general-purpose registers and the BPC and PSW
registers from the stack and then execute the "RTE" instruction. As you execute the "RTE"
instruction, hardware postprocessing is automatically performed by the M32R/E.
H'00
H'04
H'08
H'0C
+0
+1
+2
+3
H'00
H'04
H'08
H'0C
+0
+1
+2
+3
BPC
H'0A
BPC
H'08
Address
TRAP occurred
Return
address
~
~
~
~
Return
address
Address
TRAP occurred
~
~
~
~
EIT
4.10 Trap Processing
Summary of Contents for M32170F3VFP
Page 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Page 56: ...2 2 14 Ver 0 10 This is a blank page ...
Page 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Page 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Page 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Page 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Page 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Page 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...