M16C User Manual.pdf

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A-D ConverterMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTER(4) Functions selection(a) Sample & Hold functionSample & Hold function samples input voltage when A-D conversion starts and carries out A-Dconversion on the voltage sampled. When A-D conversion starts, input voltage is sampled for 3cycles of the operation clock. When the Sample & Hold function is selected, set the operation clockfor A-D conversion to 1 MHz or higher.(b) 8-bit A-D to 10-bit A-D switching functionEither 8-bit resolution or 10-bit resolution can be selected. When 8-bit resolution is selected, the 8higher-order bits of the 10-bit A-D are subjected to A-D conversion. The equations for 10-bit resolutionand 8-bit resolution are given below:10-bit resolution (Vref X n / 2 10 ) – (Vref X 0.5 / 10 10 ) (n = 1 to 1023), 0 (n = 0)8-bit resolution (Vref X n / 2 8 ) – (Vref X 0.5 / 2 10 ) (n = 1 to 255), 0 (n = 0)(c) A-D conversion by external triggerThe user can select software or an external pin input to start A-D conversion.(d) External operation amplifier connection functionThe selected A-D convertor pin input voltage can be output from the ANEX0 pin. By connecting anoperation amplifier between the ANEX1 pin and ANEX0 pin when using this function, the input voltageto all A-D conversion pins can be amplified with one operation amplifier.(e) Expanded analog input pins functionA-D conversion can be done for voltage input from either the ANEX0 pin or the ANEX1 pin.(f) Connecting or cutting VrefCutting Vref allows decrease of the current flowing into the A-D converter. To decrease themicrocomputer's power consumption, cut Vref. To carry out A-D conversion, start A-D conversion 1µs or longer after connecting Vref.The following are exsamples in which functions (a) through (f) are selected:• One-shot mode ......................................................................................................................... P388___________• One-shot mode, trigger by ADTRG ................................................................................................................... P390• One-shot mode, software trigger, expanded analog input........................................................ P392• One-shot mode, software trigger, external operation amplifier connected ............................... P394• Repeat mode, software trigger ................................................................................................. P396• One-shot sweep mode, software trigger................................................................................... P398• Repeated sweep mode 0, software trigger ............................................................................... P400• Repeated sweep mode 1, software trigger ............................................................................... P402383
A-D ConverterMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTER(5) Input to A-D converter and direction registerTo use the A-D converter, set the direction register of the relevant port to input.(6) Pins related to A-D converter(a) AN0 pin through AN7 pin(b) AVcc pin(c) VREF pin(d) AVss pin(e) ANEX0 pin and ANEX1 pin___________(f) ADTRG pinInput pins of the A-D converterPower source pin of the analog sectionInput pin of reference voltageGND pin of the analog sectionExpanded input pins of the A-D converterTrigger input pin of the A-D converter(7) A-D converter and related registersFigure 2.7.1 shows the memory map of A-D converter-related registers, and Figures 2.7.2 through2.7.4 show A-D converter-related registers.004E16A-D conversion interrupt control register (ADIC)03C01603C11603C21603C31603C41603C51603C61603C71603C81603C91603CA1603CB1603CC1603CD1603CE1603CF16A-D register 0 (AD0)A-D register 1 (AD1)A-D register 2 (AD2)A-D register 3 (AD3)A-D register 4 (AD4)A-D register 5 (AD5)A-D register 6 (AD6)A-D register 7 (AD7)03D41603D51603D61603D716A-D control register 2 (ADCON2)A-D control register 0 (ADCON0)A-D control register 1 (ADCON1)Figure 2.7.1. Memory map of A-D converter-related registers384
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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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ProtectMitsubishi microcomputersM16
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Counter content (hex)Timer AMitsubi
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Counter content (hex)Timer BMitsubi
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Counter content (hex)Timer BMitsubi
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Clock-Synchronous Serial I/OMitsubi
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Page 439 and 440: 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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