56
CHAPTER 3 INTERRUPTS
3.1
Outline of Interrupts
The F
2
MC-16LX has interrupt functions that terminate the currently executing
processing and transfer control to another specified program when a specified event
occurs. There are four types of interrupt functions:
• Hardware interrupt: Interrupt processing due to an internal resource event
• Software interrupt: Interrupt processing due to a software event occurrence instruction
• Extended intelligent I/O service (EI
2
OS): Transfer processing due to an internal
resource event
• Exception: Termination due to an operation exception
■
Hardware Interrupts
A hardware interrupt is activated by an interrupt request from an internal resource. A hardware interrupt
request occurs when both the interrupt request flag and the interrupt enable flag in an internal resource are
set. Therefore, an internal resource must have an interrupt request flag and interrupt enable flag to issue a
hardware interrupt request.
●
Specifying an interrupt level
An interrupt level can be specified for the hardware interrupt. To specify an interrupt level, use
the level setting bits (IL0, IL1, and IL2) of the interrupt controller.
●
Masking a hardware interrupt request
A hardware interrupt request can be masked by using the I flag of the processor status register
(PS) in the CPU and the ILM bits (IL0, IL1, and IL2). When an unmasked interrupt request
occurs, the CPU saves 12 bytes of data that consists of registers PS, PC, PCB, DTB, ADB, DPR,
and A in the memory area indicated by the SSB and SSP registers.
Figure 3.1-1 Overview of Hardware Interrupts
IR
PS
I
ILM
AND
F
2
MC-16LX CPU
F
2
MC-16LX
Enable FF
Factor FF
Register file
Micro code
Check
Comparator
bu
s
Peripheral
Interrupt
controller
PS : Processor status
I
: Interrupt enable flag
ILM : Interrupt level mask register
IR
: Instruction register
Inte
rru
pt level IL
L
e
ve
l com
par
ato
r
Содержание F2MCTM-16LX
Страница 2: ......
Страница 3: ...FUJITSU LIMITED F2MCTM 16LX 16 BIT MICROCONTROLLER MB90360 Series HARDWARE MANUAL ...
Страница 4: ......
Страница 42: ...26 CHAPTER 1 OVERVIEW ...
Страница 66: ...50 CHAPTER 2 CPU MOV ILM imm8 The instruction is executed normally but the prefix affects the next instruction ...
Страница 70: ...54 CHAPTER 2 CPU ...
Страница 134: ...118 CHAPTER 6 CLOCK SUPERVISOR ...
Страница 176: ...160 CHAPTER 8 LOW POWER CONSUMPTION MODE ...
Страница 194: ...178 CHAPTER 10 I O PORTS ...
Страница 252: ...236 CHAPTER 13 16 Bit I O TIMER ...
Страница 282: ...266 CHAPTER 14 16 BIT RELOAD TIMER ...
Страница 295: ...279 CHAPTER 15 WATCH TIMER ORG 00FFDCH Reset vector set DSL START DB 00H Set to single chip mode VECT ENDS END START ...
Страница 296: ...280 CHAPTER 15 WATCH TIMER ...
Страница 386: ...370 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 426: ...410 CHAPTER 20 LIN UART Figure 20 5 2 ORE Flag Set Timing RDRF ORE Reception data ...
Страница 540: ...524 CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION ...
Страница 568: ...552 CHAPTER 24 512K BIT FLASH MEMORY ...
Страница 633: ...617 APPENDIX B Instructions Table B 9 3 Bit Operation Instruction Map first byte 6CH ...
Страница 634: ...618 APPENDIX Table B 9 4 Character String Operation Instruction Map first byte 6EH ...
Страница 635: ...619 APPENDIX B Instructions Table B 9 5 2 byte Instruction Map first byte 6FH MUL MULW DIVU A A A ...
Страница 637: ...621 APPENDIX B Instructions Table B 9 7 ea Instruction 2 first byte 71H ...
Страница 638: ...622 APPENDIX Table B 9 8 ea Instruction 3 first byte 72H ...
Страница 639: ...623 APPENDIX B Instructions Table B 9 9 ea Instruction 4 first byte 73H ...
Страница 640: ...624 APPENDIX Table B 9 10 ea Instruction 5 first byte 74H ...
Страница 641: ...625 APPENDIX B Instructions Table B 9 11 ea Instruction 6 first byte 75H ...
Страница 642: ...626 APPENDIX Table B 9 12 ea Instruction 7 first byte 76H ...
Страница 643: ...627 APPENDIX B Instructions Table B 9 13 ea Instruction 8 first byte 77H ...
Страница 644: ...628 APPENDIX Table B 9 14 ea Instruction 9 first byte 78H ...
Страница 645: ...629 APPENDIX B Instructions Table B 9 15 MOVEA RWi ea Instruction first byte 79H ...
Страница 646: ...630 APPENDIX Table B 9 16 MOV Ri ea Instruction first byte 7AH ...
Страница 647: ...631 APPENDIX B Instructions Table B 9 17 MOVW RWi ea Instruction first byte 7BH ...
Страница 648: ...632 APPENDIX Table B 9 18 MOV Ri ea Instruction first byte 7CH ...
Страница 649: ...633 APPENDIX B Instructions Table B 9 19 MOVW ea Rwi Instruction first byte 7DH ...
Страница 650: ...634 APPENDIX Table B 9 20 XCH Ri ea Instruction first byte 7EH ...
Страница 651: ...635 APPENDIX B Instructions Table B 9 21 XCHW RWi ea Instruction first byte 7FH ...
Страница 664: ...648 APPENDIX ...
Страница 665: ...649 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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