M16C User Manual.pdf

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InterruptMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERPriority level of each interruptINT1Timer B2Level 0 (initial value)HighTimer B0Timer A3Timer A1Timer B4INT3INT2INT0Timer B1Timer A4Timer A2Timer B3Timer B5UART1 receptionUART0 receptionUART2 reception/ACKPriority of peripheral I/O interrupts(if priority levels are same)A-D conversionDMA1Bus collision detectionSerial I/O4/INT5Timer A0UART1 transmissionUART0 transmissionUART2 transmission/NACKKey input interruptDMA0Serial I/O3/INT4Processor interrupt priority level (IPL)LowInterrupt request level judgment outputTo clock generating circuit (Fig.1.13.3)Interrupt enable flag (I flag)Address matchWatchdog timerDBCNMIResetInterruptrequestacceptedFigure 1.14.9. Maskable interrupts priorities (peripheral I/O interrupts)65
______INT InterruptMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTER______INT Interrupt________ ________INT0 to INT5 are triggered by the edges of external inputs. The edge polarity is selected using the polarityselect bit.________Of interrupt control registers, 004816 is used both as serial I/O4 and external interrupt INT5 input control________register, and 004916 is used both as serial I/O3 and as external interrupt INT4 input control register. Use theinterrupt request cause select bits - bits 6 and 7 of the interrupt request cause select register (035F16) - tospecify which interrupt request cause to select. After having set an interrupt request cause, be sure to clearthe corresponding interrupt request bit before enabling an interrupt.Either of the interrupt control registers - 004816, 004916 - has the polarity-switching bit. Be sure to set this bitto “0” to select an serial I/O as the interrupt request cause.As for external interrupt input, an interrupt can be generated both at the rising edge and at the falling edgeby setting “1” in the INTi interrupt polarity switching bit of the interrupt request cause select register(035F16). To select both edges, set the polarity switching bit of the corresponding interrupt control registerto ‘falling edge’ (“0”).Figure 1.14.10 shows the Interrupt request cause select register.Interrupt request cause select registerb7 b6 b5 b4 b3 b2 b1 b0Bit symbolIFSR0IFSR1IFSR2IFSR3IFSR4IFSR5IFSR6IFSR7Symbol Address When resetIFSR 035F16 0016Bit nameINT0 interrupt polarityswitching bitINT1 interrupt polarityswitching bitINT2 interrupt polarityswitching bitINT3 interrupt polarityswitching bitINT4 interrupt polarityswitching bitINT5 interrupt polarityswitching bitInterrupt request causeselect bitInterrupt request causeselect bitFunction0 : One edge1 : Two edges0 : One edge1 : Two edges0 : One edge1 : Two edges0 : One edge1 : Two edges0 : One edge1 : Two edges0 : One edge1 : Two edges0 : SIO31 : INT40 : SIO41 : INT5RWFigure 1.14.10. Interrupt request cause select register66
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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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Page 31 and 32: ResetMitsubishi microcomputersM16C
Page 33 and 34: ResetMitsubishi microcomputersM16C
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Page 37 and 38: Memory Space Expansion FunctionsMit
Page 43 and 44: Software ResetMitsubishi microcompu
Page 45 and 46: Processor ModeMitsubishi microcompu
Page 47 and 48: Bus SettingsMitsubishi microcompute
Page 49 and 50: Specified address rangeBus ControlM
Page 51 and 52: Bus ControlMitsubishi microcomputer
Page 57 and 58: Clock Generating CircuitMitsubishi
Page 59 and 60: Clock Generating CircuitMitsubishi
Page 61 and 62: Wait ModeMitsubishi microcomputersM
Page 63 and 64: Power controlMitsubishi microcomput
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Page 67 and 68: InterruptMitsubishi microcomputersM
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Page 83 and 84: Address Match InterruptMitsubishi m
Page 85 and 86: Precautions for InterruptsMitsubish
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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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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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Timer AMitsubishi microcomputersM16
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Counter content (hex)Timer AMitsubi
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Timer BMitsubishi microcomputersM16
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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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DMACMitsubishi microcomputersM16C /
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CRC Calculation CircuitMitsubishi m
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Watchdog TimerMitsubishi microcompu
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Watchdog TimerMitsubishi microcompu
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Address Match InterruptMitsubishi m
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Address Match InterruptMitsubishi 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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InterruptMitsubishi microcomputersM
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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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