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CHAPTER 20 LIN-UART
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Transmission operation
If the Transmission Data Register Empty (TDRE) flag bit of the Serial Status Register (SSR) is "1",
transmission data is allowed to be written to the Transmission Data Register (TDR). When data is written,
the TDRE flag goes "0". If the transmission operation is enabled by the TXE-Bit ("1") of the Serial Control
Register (SCR), the data is written next to the transmission shift register and the transmission starts at the
next clock cycle of the serial clock, beginning with the start bit.
If transmission interrupt is enabled (TIE = 1), the interrupt is generated by the TDRE flag. Note, that the
initial value of the TDRE flag is "1", so that in this case if TIE is set to "1" an interrupt will occur
immediately.
When the data length is set to 7 bits (CL=0), the unused bit of the TDR is always the MSB, independently
from the transfer direction selection in the BDS bit (LSB first or MSB first).
Note:
As the initial value of transmission data empty flag bit (SSR: TDRE) is "1" if the transmission interrupt
is enabled (SSR: TIE=1), the interrupt occurs immediately.
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Reception operation
Reception operation is performed when it is enabled by the Reception Enable (RXE) flag bit of the SCR. If
a start bit is detected, a data frame is received according to the data format specified by the SCR. In case of
errors, the corresponding error flags are set (SSR: PE, ORE, FRE). After the reception of the data frame,
the data is transferred from the reception shift register to the Reception Data Register (RDR) and the
Receive Data Register Full (RDRF) flag bit of the SSR is set to "1". In this case, if the reception interrupt
request is enabled (SSR: RIE=1), the reception interrupt request is occurred. When reading data after
reception of one frame data, check the error flag state and read reception data from the RDR register if the
reception is performed normally. If the reception error occurs, perform error processing. The data then has
to be read by the CPU. By doing so, the RDRF flag of SSR is cleared to "0".
When the data length is set to 7 bits (CL=0), the unused bit of the TDR is always the MSB, independently
from the bit transfer direction selection in the BDS bit (LSB first or MSB first).
Note:
Only when the RDRF flag bit of SSR is set to "1" and no errors have occurred (SSR: PE, ORE, FRE=0)
the Reception Data Register (RDR) contains valid data.
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Used clock
Use the internal clock or external clock. Select the baud rate generator (SMR: EXT = 0 or 1, OTO = 0) for
desired baud rate.
Summary of Contents for F2MCTM-16LX
Page 2: ......
Page 3: ...FUJITSU LIMITED F2MCTM 16LX 16 BIT MICROCONTROLLER MB90360 Series HARDWARE MANUAL ...
Page 4: ......
Page 42: ...26 CHAPTER 1 OVERVIEW ...
Page 70: ...54 CHAPTER 2 CPU ...
Page 134: ...118 CHAPTER 6 CLOCK SUPERVISOR ...
Page 176: ...160 CHAPTER 8 LOW POWER CONSUMPTION MODE ...
Page 194: ...178 CHAPTER 10 I O PORTS ...
Page 252: ...236 CHAPTER 13 16 Bit I O TIMER ...
Page 282: ...266 CHAPTER 14 16 BIT RELOAD TIMER ...
Page 296: ...280 CHAPTER 15 WATCH TIMER ...
Page 386: ...370 CHAPTER 18 8 10 BIT A D CONVERTER ...
Page 426: ...410 CHAPTER 20 LIN UART Figure 20 5 2 ORE Flag Set Timing RDRF ORE Reception data ...
Page 540: ...524 CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION ...
Page 568: ...552 CHAPTER 24 512K BIT FLASH MEMORY ...
Page 633: ...617 APPENDIX B Instructions Table B 9 3 Bit Operation Instruction Map first byte 6CH ...
Page 634: ...618 APPENDIX Table B 9 4 Character String Operation Instruction Map first byte 6EH ...
Page 637: ...621 APPENDIX B Instructions Table B 9 7 ea Instruction 2 first byte 71H ...
Page 638: ...622 APPENDIX Table B 9 8 ea Instruction 3 first byte 72H ...
Page 639: ...623 APPENDIX B Instructions Table B 9 9 ea Instruction 4 first byte 73H ...
Page 640: ...624 APPENDIX Table B 9 10 ea Instruction 5 first byte 74H ...
Page 641: ...625 APPENDIX B Instructions Table B 9 11 ea Instruction 6 first byte 75H ...
Page 642: ...626 APPENDIX Table B 9 12 ea Instruction 7 first byte 76H ...
Page 643: ...627 APPENDIX B Instructions Table B 9 13 ea Instruction 8 first byte 77H ...
Page 644: ...628 APPENDIX Table B 9 14 ea Instruction 9 first byte 78H ...
Page 645: ...629 APPENDIX B Instructions Table B 9 15 MOVEA RWi ea Instruction first byte 79H ...
Page 646: ...630 APPENDIX Table B 9 16 MOV Ri ea Instruction first byte 7AH ...
Page 647: ...631 APPENDIX B Instructions Table B 9 17 MOVW RWi ea Instruction first byte 7BH ...
Page 648: ...632 APPENDIX Table B 9 18 MOV Ri ea Instruction first byte 7CH ...
Page 649: ...633 APPENDIX B Instructions Table B 9 19 MOVW ea Rwi Instruction first byte 7DH ...
Page 650: ...634 APPENDIX Table B 9 20 XCH Ri ea Instruction first byte 7EH ...
Page 651: ...635 APPENDIX B Instructions Table B 9 21 XCHW RWi ea Instruction first byte 7FH ...
Page 664: ...648 APPENDIX ...
Page 665: ...649 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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