M16C User Manual.pdf

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Clock-Synchronous Serial I/OMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERUARTi transmit buffer register(b15)(b8)b7b0 b7b0Symbol Address When resetU0TB 03A316, 03A216 IndeterminateU1TB 03AB16, 03AA16 IndeterminateU2TB 037B16, 037A16 IndeterminateTransmit dataFunctionNothing is assigned.In an attempt to write to these bits, write “0”. The value, if read, turn out to be indeterminate.R WUARTi receive buffer register(b15) (b8)Symbol Address When resetb7b0 b7b0U0RB 03A716, 03A616 IndeterminateU1RB 03AF16, 03AE16 IndeterminateU2RB 037F16, 037E16 IndeterminateBitsymbolBit nameFunction(During clock synchronousserial I/O mode)Receive dataFunction(During UART mode)Nothing is assigned.In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.ABTOERArbitration lost detectingflag (Note 2)Overrun error flag (Note 1)0 : Not detected1 : Detected0 : No overrun error1 : Overrun error foundReceive dataInvalid0 : No overrun error1 : Overrun error foundR W FERFraming error flag (Note 1)Invalid0 : No framing error1 : Framing error foundPERParity error flag (Note 1)Invalid0 : No parity error1 : Parity error foundSUMError sum flag (Note 1)Invalid0 : No error1 : Error foundNote 1: Bits 15 through 12 are set to “0” when the serial I/O mode select bit (bits 2 to 0 at addresses 03A016,03A816 and 037816) are set to “0002” or the receive enable bit is set to “0”.(Bit 15 is set to “0” when bits 14 to 12 all are set to “0”.) Bits 14 and 13 are also set to “0” when thelower byte of the UARTi receive buffer register (addresses 03A616, 03AE16 and 037E16) is read out.Note 2: Arbitration lost detecting flag is allocated to U2RB and noting but “0” may be written. Nothing isassigned in bit 11 of U0RB and U1RB. These bits can neither be set or reset. When read, the valueof this bit is “0”.UARTi bit rate generatorb7b0 Symbol Address When resetU0BRG 03A116 IndeterminateU1BRG 03A916 IndeterminateU2BRG 037916 IndeterminateFunctionAssuming that set value = n, BRGi divides the count source byn + 1Values that can be set0016 to FF16R WFigure 2.4.2. Serial I/O-related registers (1)329
Clock-Synchronous Serial I/OMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERUARTi transmit/receive mode registerb7 b6 b5 b4 b3 b2 b1 b0Symbol Address When resetUiMR(i=0,1) 03A016, 03A816 0016BitsymbolSMD0SMD1SMD2CKDIRSTPSPRYPRYESLEPBit nameSerial I/O mode select bitInternal/external clockselect bitStop bit length select bitOdd/even parity select bitParity enable bitSleep select bitFunction(During clock synchronousserial I/O mode)Must be fixed to 001b2 b1 b00 0 0 : Serial I/O invalid0 1 0 : Inhibited0 1 1 : Inhibited1 1 1 : Inhibited0 : Internal clock1 : External clock (Note)InvalidInvalidInvalidMust always be “0”Note : Set the corresponding port direction register to “0”.b2 b1 b0Function(During UART mode)1 0 0 : Transfer data 7 bits long1 0 1 : Transfer data 8 bits long1 1 0 : Transfer data 9 bits long0 0 0 : Serial I/O invalid0 1 0 : Inhibited0 1 1 : Inhibited1 1 1 : Inhibited0 : Internal clock1 : External clock (Note)0 : One stop bit1 : Two stop bitsValid when bit 6 = “1”0 : Odd parity1 : Even parity0 : Parity disabled1 : Parity enabled0 : Sleep mode deselected1 : Sleep mode selectedR W UART2 transmit/receive mode registerb7 b6 b5 b4 b3 b2 b1 b0Symbol Address When resetU2MR 037816 0016BitsymbolSMD0SMD1SMD2CKDIRSTPSPRYPRYEIOPOLBit nameSerial I/O mode select bitInternal/external clockselect bitStop bit length select bitOdd/even parity select bitParity enable bitTxD, RxD I/O polarityreverse bitFunction(During clock synchronousserial I/O mode)Must be fixed to 001b2 b1 b00 0 0 : Serial I/O invalid0 1 0 : (Note 1)0 1 1 : Inhibited1 1 1 : Inhibited0 : Internal clock1 : External clock (Note 2)InvalidInvalidInvalid0 : No reverse1 : ReverseUsually set to “0”Note 1: Bit 2 to bit 0 are set to “0102” when I 2 C mode is used.Note 2: Set the corresponding port direction register to “0”.b2 b1 b0Function(During UART mode)1 0 0 : Transfer data 7 bits long1 0 1 : Transfer data 8 bits long1 1 0 : Transfer data 9 bits long0 0 0 : Serial I/O invalid0 1 0 : Inhibited0 1 1 : Inhibited1 1 1 : InhibitedMust always be fixed to “0”0 : One stop bit1 : Two stop bitsValid when bit 6 = “1”0 : Odd parity1 : Even parity0 : Parity disabled1 : Parity enabled0 : No reverse1 : ReverseUsually set to “0”R W Figure 2.4.3. Serial I/O-related registers (2)330
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To all our customersRegarding the c
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Keep safety first in your circuit d
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This manual comprises of eight chap
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Table of ContentsChapter 1 Hardware
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2.5 Clock-Asynchronous Serial I/O (
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4.2.1 Interrupt Enable Flag .......
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Quick Reference to Pages Classified
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Quick Reference to Pages Classified
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DescriptionMitsubishi microcomputer
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Pin DescriptionMitsubishi microcomp
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CPUMitsubishi microcomputersM16C /
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CPUMitsubishi microcomputersM16C /
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ResetMitsubishi microcomputersM16C
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ResetMitsubishi microcomputersM16C
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SFRMitsubishi microcomputersM16C /
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Memory Space Expansion FunctionsMit
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Software ResetMitsubishi microcompu
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Processor ModeMitsubishi microcompu
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Bus SettingsMitsubishi microcompute
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Specified address rangeBus ControlM
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Bus ControlMitsubishi microcomputer
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Clock Generating CircuitMitsubishi
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Clock Generating CircuitMitsubishi
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Wait ModeMitsubishi microcomputersM
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Power controlMitsubishi microcomput
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ProtectionMitsubishi microcomputers
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InterruptMitsubishi microcomputersM
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______INT InterruptMitsubishi micro
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Address Match InterruptMitsubishi m
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Precautions for InterruptsMitsubish
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Watchdog TimerMitsubishi microcompu
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DMACMitsubishi microcomputersM16C /
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TimerMitsubishi microcomputersM16C
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Timer AMitsubishi microcomputersM16
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Timer BMitsubishi microcomputersM16
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Timers’ functions for three-phase
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Serial I/OMitsubishi microcomputers
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Clock synchronous serial I/O modeMi
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Clock asynchronous serial I/O (UART
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UART2 Special Mode RegisterMitsubis
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UART2 Special Mode RegisterMitsubis
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UART2 Special Mode Register 2Mitsub
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UART2 Special Mode Register 2Mitsub
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S I/O3, 4Mitsubishi microcomputersM
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S I/O3, 4Mitsubishi microcomputersM
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A-D ConverterMitsubishi microcomput
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D-A ConverterMitsubishi microcomput
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CRCMitsubishi microcomputersM16C /
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Programmable I/O PortMitsubishi mic
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Usage precautionMitsubishi microcom
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Usage precautionMitsubishi microcom
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Electrical characteristicsMitsubish
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Electrical characteristics (Vcc = 5
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Timing (VCC=5V)Mitsubishi microcomp
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TimingMitsubishi microcomputersM16C
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Timing (Vcc = 5V)Mitsubishi microco
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Electrical characteristics (Vcc = 3
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Mitsubishi microcomputersM16C / 62
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IssuancesignatureReceiptMitsubishi
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Description (Flash Memory Version)M
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CPU Rewrite Mode (Flash Memory Vers
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Functions To Inhibit Rewriting (Fla
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Appendix Parallel I/O Mode (Flash M
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Appendix Standard Serial I/O Mode (
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274Mitsubishi microcomputersM16C /
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ProtectMitsubishi microcomputersM16
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Page 295 and 296: Timer AMitsubishi microcomputersM16
Page 301 and 302: Counter content (hex)Timer AMitsubi
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SI/O3, 4Mitsubishi microcomputersM1
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Converted analog input pinConverted
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D-A ConverterMitsubishi microcomput
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CRC Calculation CircuitMitsubishi m
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Key-Input InterruptMitsubishi micro
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Key-Input InterruptMitsubishi micro
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Power ControlMitsubishi microcomput
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ApplicationsMitsubishi microcompute
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Timer A1 countercontent (hex)Timer
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Timer A ApplicationsMitsubishi micr
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DMAC ApplicationsMitsubishi microco
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DMAC ApplicationsMitsubishi microco
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Controlling Power ApplicationsMitsu
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External BusesMitsubishi microcompu
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External ROMMitsubishi microcompute
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Standard CharacteristicsMitsubishi
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Absolute error [LSB]Standard Charac
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Absolute accuracy [mV]Absolute accu
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Appendix 1Mitsubishi microcomputers
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Appendix 2 Hexadecimal instruction
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Appendix 3 Setting register for pin
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MITSUBISHI Single-Chip Microcompute
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