5
5-21
Rev.1.0
INTERRUPT CONTROLLER (ICU)
5.5 Description of Interrupt Operation
H'0000 0080
BRA instruction
Read Interrupt Vector
Register (IVECT)
Read ICU vector table
Branch to interrupt handler
for the internal peripheral I/O
RTE
H'0080 0004
H'0000 0094
H'0000 010F
Interrupt
handler
Interrupt
handler
EI (External Interrupt) handler
EI (External Interrupt)
vector entry
Address
Program
being
executed
Interrupt
generated
IVECT
Save BPC to stack
Save PSW to stack
Save general-purpose
registers to stack
Restore BPC
Restore PSW
Restore general-
purpose registers
Read Interrupt Mask
Register (IMASK) and
save to stack
IMASK
H'0080 0000
PSW Register IE bit = 1
PSW Register IE bit = 0
Restore Interrupt Mask
Register (IMASK)
1
2
3
4
6
7
8
5
9
10
10
1
8
5
: Processing by
interrupt handler for EI
: When enabling another
interrupt in an interrupt
ICU vector
table
Note: For operations performed when accepting EIT and returning from processing,
refer to Section 4.3, "EIT Processing Procedure."
(Note)
(Note)
∼
Figure 5.5.2 Example of Operations Performed for Interrupts from Internal Peripheral I/O
Содержание 32172
Страница 20: ... This is a blank page 16 ...
Страница 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Страница 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Страница 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Страница 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Страница 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Страница 240: ...8 8 40 Rev 1 0 This is a blank page INPUT OUTPUT PORTS AND PIN FUNCTIONS 8 5 Precautions on Input Output Ports ...
Страница 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Страница 416: ...10 10 118 Rev 1 0 This is a blank page INPUT OUTPUT TIMERS 10 6 TOM Output Related 16 bit Timers ...
Страница 658: ...14 14 16 Rev 1 0 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 718: ...16 16 16 Rev 1 0 This is a blank page D A CONVERTERS 16 3 Functional Description of the D A Converters ...
Страница 766: ...18 18 22 Rev 1 0 WAIT CONTROLLER 18 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 777: ...CHAPTER 20 CHAPTER 20 OSCILLATION CIRCUIT 20 1 Oscillator Circuit 20 2 Clock Generator Circuit ...
Страница 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Страница 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Страница 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Страница 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 861: ...Appendix 2 1 M32R E Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...