M16C User Manual.pdf

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Controlling Power ApplicationsMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERKey-input interruptStore the registersKey matrix scanb7b0Port P10 register [Address 03F416]P10Key scan data1110, 1101, 1011, 0111Decision of key-input datab7000b00Port P10 register [Address 03F416]P10Key scan dataRestore the registersREIT instructionFigure 3.7.4. Set-up procedure of controlling power using stop mode (2)479
Controlling Power ApplicationsMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTER3.8 Controling Power Using Wait ModeOverviewThe following are steps for controling power using wait mode. Figure 3.8.1 shows the operationtiming, and Figures 3.8.2 to 3.8.4 show the set-up procedure.Use the following peripheral functions:• Timer mode of timer B• Wait modeA flag named “F-WIT” is used in the set-up procedure. The purpose of this flag is to decidewhether or not to clear wait mode. If F_WIT = “1” in the main program, the wait mode is entered;if F_WIT = “0”, the wait mode is cleared.Specifications(1) Connect a 32.768-kHz oscillator to XCIN to serve as the timer count source. As interruptsoccur every one second, which is a count the timer reaches, the controller returns from waitmode and count the clock using a program.________(2) Clear wait mode if a INT0 interrupt request occurs.Operation(1) Switch the system clock from XIN to XCIN to get low-speed mode._______(2) Stop XIN and enter wait mode. In this instance, enable the timer B2 interrupt and the INT0 interrupt.(3) When a timer B2 interrupt request occurs (at 1-second intervals), start supplying the BCLKfrom XCIN.At this time, count the clock within the routine that handles the timer B2 interrupts and enter waitmode again._______(4) If a INT0 interrupt occurs, start supplying the BCLK from XCIN. Start the XIN oscillation within_______the INT0 interrupt, and switch the system clock to XIN.(1) Shift to low-speed mode(2) Stop XIN(3) Timer B2 interrupt (4) INT0 interruptXOUTXCINTimer B overflowTimer B2interrupt processingINT0“H”“L”BCLKHigh-speedHigh-speedLow-speed Low-speed Low-speed Low-speedFigure 3.8.1. Operation timing of controling power using wait mode480
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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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UARTMitsubishi microcomputersM16C /
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SIM interfaceMitsubishi microcomput
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SI/O3, 4Mitsubishi microcomputersM1
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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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Watchdog TimerMitsubishi microcompu
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Page 445 and 446: Address Match InterruptMitsubishi m
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Page 449 and 450: Key-Input InterruptMitsubishi micro
Page 451 and 452: Key-Input InterruptMitsubishi micro
Page 453 and 454: Power ControlMitsubishi microcomput
Page 461 and 462: Programmable I/O PortsMitsubishi mi
Page 469 and 470: ApplicationsMitsubishi microcompute
Page 471 and 472: Timer A1 countercontent (hex)Timer
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Page 491 and 492: 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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