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CHAPTER 21 CAN CONTROLLER
21.5
Transmission of CAN Controller
When 1 is written to TREQx of the transmission request register (TREQR), transmission
by the message buffer (x) starts. At this time, TREQx becomes 1 and TCx of the
transmission complete register (TCR) becomes 0.
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Starting Transmission of CAN Controller
If RFWTx of the remote frame receiving wait register (RFWTR) is 0, transmission starts immediately. If
RFWTx is 1, transmission starts after waiting until a remote frame is received (RRTRx of the remote
request receiving register (RRTRR) becomes 1).
If a request for transmission is made to more than 1 message buffer (more than one TREQx is 1),
transmission is performed, starting with the lowest-numbered message buffer.
Message transmission to the CAN bus (by the transmit output pin TX) starts when the bus is idle.
If TRTRx of the transmission RTR register (TRTRR) is 0, a data frame is transmitted. If TRTRx is 1, a
remote frame is transmitted.
If the message buffer competes with other CAN controllers on the CAN bus for transmission and
arbitration fails, or if an error occurs during transmission, the message buffer waits until the bus is idle and
repeats retransmission until it is successful.
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Canceling Transmission Request from CAN Controller
●
Canceling by transmission cancel register (TCANR)
A transmission request for message buffer (x) having not executed transmission during transmission
pending can be canceled by writing 1 to TCANx of the transmission cancel register (TCANR). At
completion of cancellation, TREQx becomes 0.
●
Canceling by storing received message
The message buffer (x) having not executed transmission despite transmission request also performs
reception.
If the message buffer (x) has not executed transmission despite a request for transmission of a data frame
(TRTRx = 0 or TREQx = 1), the transmission request is canceled after storing received data frames passing
through the acceptance filter (TREQx = 0).
Note:
A transmission request is not canceled by storing remote frames (TREQx = 1 remains unchanged).
If the message buffer (x) has not executed transmission despite a request for transmission of a remote frame
(TRTRx = 1 or TREQx = 1), the transmission request is canceled after storing received remote frames
passing through the acceptance filter (TREQx = 0).
Note:
The transmission request is canceled by storing either data frames or remote frames.
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 ...
Страница 682: ......