M16C User Manual.pdf

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Timer AMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERSelecting event counter mode and functionsb70 10 1 0 0b00 1Timer Ai mode register (i= 2, 3) [Address 039816, 039916]TAiMR (i= 2, 3)Selection of event counter mode0 (Must always be “0” when using two-phase pulse signal processing)0 (Must always be “0” when using two-phase pulse signal processing)1 (Must always be “1” when using two-phase pulse signal processing)0 (Must always be “0” when using two-phase pulse signal processing)Count operation type select bit1 : Free-run typeTwo-phase pulse signal processing operation select bit0 : Normal processing operationTwo-phase pulse signal processing select bitb7b0Up/down flag [Address 038416]UDFTimer A2 two-phase pulse signal processing select bit1 : Two-phase pulse signal processing enabledTimer A3 two-phase pulse signal processing select bit1 : Two-phase pulse signal processing enabledSetting divide ratio(b15)b7(b8)b0 b7 b0 Timer A2 register [Address 038B16, 038A16] TA2Timer A3 register [Address 038D16, 038C16]TA3Can be set to 000016 to FFFF16Setting count start flagb7b0Count start flag [Address 038016]TABSRTimer A2 count start flagTimer A3 count start flagStart countFigure 2.2.17. Set-up procedure of 2-phase pulse signal process in event counter mode, normal mode selected297
Timer AMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTER2.2.8 Operation of timer A (2-phase pulse signal process in event counter mode,multiply-by-4 mode selected)In processing 2-phase pulse signals in event counter mode, choose functions from those listed in Table2.2.7. Operations of the circled items are described below. Figure 2.2.18 shows the operation timing, andFigure 2.2.19 shows the set-up procedure.Table 2.2.7. Choosed functionsItemSet-upItemSet-upCount operation typeOReload typeFree run typeProcessing 2 phasepulses (Note)ONormal processing4-multiplication processingNote: Timer A3 alone can be selected. Timer A2 is solely used for normal processes, and timer A4 is solely used for 4-multiplication processes.Operation(1) Setting the count start flag to “1” causes the counter to count effective edges of the count source.(2) Even if an underflow occurs, the content of the reload register is not reloaded, but the countcontinues. At this time, the interrupt request bit goes to “1”.(3) Even if an overflow occurs, the content of the reload register is not reloaded, but the countcontinues. At this time, the interrupt request bit goes to “1”.Note• The up count or down count conditions are as follows:Table 2.2.8. The up count or down count conditionsInput signal to theTAiOUT pinInput signal to theTAiIN pinInput signal to theTAiOUT pinInput signal to theTAiIN pinUp count“H” level“L” levelRisingFallingDowncount“H” level“L” levelFallingRisingRising“L” levelRising“H” levelFalling“H” levelFalling“L” level“H”TAiOUT“L”“H”TAiIN“L”(1) Start countCounter content (hex) Input pulseFFFF16“1”Count start flag“0”Timer Ai interrupt “1”request bit“0”000016Set to “1” by softwareTime(2) Underflow (3) OverflowCleared to “0” when interrupt request is accepted, or cleared by softwareFigure 2.2.18. Operation timing of 2-phase pulse signal process in event counter mode, multiply-by-4 mode selected298
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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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Page 261 and 262: CPU Rewrite Mode (Flash Memory Vers
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Page 267 and 268: Appendix Parallel I/O Mode (Flash M
Page 269 and 270: Appendix Standard Serial I/O Mode (
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Page 291 and 292: 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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UARTMitsubishi microcomputersM16C /
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SIM interfaceMitsubishi microcomput
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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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Programmable I/O PortsMitsubishi mi
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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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