M16C User Manual.pdf

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Processor ModeMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERProcessor mode register 0 (Note 1)b7 b6 b5 b4 b3 b2 b1 b0Symbol Address When resetPM0 000416 0016 (Note 2)Bit symbolPM00PM01PM03Bit nameProcessor mode bitFunctionb1 b00 0: Single-chip mode0 1: Memory expansion mode1 0: Inhibited1 1: Microprocessor modePM02 R/W mode select bit 0 : RD,BHE,WR1 : RD,WRH,WRLPM04PM05PM06PM07Software reset bitMultiplexed bus spaceselect bitPort P40 to P43 functionselect bit (Note 3)BCLK output disable bitThe device is reset when this bit is setto “1”. The value of this bit is “0” whenread.b5 b40 0 : Multiplexed bus is not used0 1 : Allocated to CS2 space1 0 : Allocated to CS1 space1 1 : Allocated to entire space (Note4)0 : Address output1 : Port function(Address is not output)0 : BCLK is output1 : BCLK is not output(Pin is left floating)R WNote 1: Set bit 1 of the protect register (address 000A16) to “1” when writing newvalues to this register.Note 2: If the VCC voltage is applied to the CNVSS, the value of this register whenreset is 0316. (PM00 and PM01 both are set to “1”.)Note 3: Valid in microprocessor and memory expansion modes.Note 4: If the entire space is of multiplexed bus in memory expansion mode, choose an 8-bit width.The processor operates using the separate bus after reset is revoked, so the entirespace multiplexed bus cannot be chosen in microprocessor mode.The higher-order address becomes a port if the entire space multiplexed bus is chosen, soonly 256 bytes can be used in each chip select.Processor mode register 1 (Note 1)b7 b6 b5 b4 b3 b2 b1 b000Symbol Address When resetPM1 000516 00000XX02Bit symbol Bit nameFunctionReserved bit Must always be set to “0”Nothing is assigned.In an attempt to write to these bits, write “0”. The value, if read, turnsout to be indeterminate.PM13PM14PM15Internal reserved areaexpansion bit (Note 2)Memory areaexpansion bit (Note 3)0: The same internal reservedarea as that of M16C/60 andM16C/61 group1: Expands the internal RAM areaand internal ROM area to 23 Kbytes and to 256K bytesrespectively. (Note 2)b5 b40 0 : Normal mode(Do not expand)0 1 : Inhibited1 0 : Memory area expansionmode 11 1 : Memory area expansionmode 2Reserved bit Must always be set to “0”PM17 Wait bit 0 : No wait state1 : Wait state insertedR W Note 1: Set bit 1 of the protect register (address 000A16) to “1” when writing new values to this register.Note 2: Be sure to set this bit to 0 except products whose RAM size and ROM size exceed 15K bytesand 192K bytes respectively.In using M30624MG/FG, a product having a RAM of more than 15K bytes and a ROM of morethan 192K bytes, set this bit to 1 at the beginning of user program.Specify D000016 or a subsequent address, which becomes an internal ROM area if PM13 is setto “0” at the time reset is revoked, for the reset vector table of user program.Note 3: With the processor running in memory expansion mode or in microprocessor mode, setting thisbit provides the means of expanding the external memory area. (Normal mode: up to 1M byte,expansion mode 1: up to 1.2 M bytes, expansion mode 2: up to 4M bytes)For details, see “Memory space expansion functions”.Figure 1.9.1. Processor mode register 0 and 129
Processor ModeMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERSingle-chip modeMemory expansion modeMicroprocessor mode0000016SFR areaSFR areaSFR area0040016InternalRAM areaInternalRAM areaInternalRAM areaXXXXX160400016Internallyreserved areaInternallyreserved areaInhibitedExternalareaExternalareaD000016YYYYY16Internallyreserved areaInternalROM areaInternalROM areaFFFFF16Type No. Address XXXXX16 Address YYYYY16M30622M4 00FFF16 F800016M30620M8 02BFF16 F000016M30620MA02BFF16E800016M30620MC/EC 02BFF16E000016M30622M8/E8013FF16F000016M30622MA017FF16E800016M30622MC017FF16E000016M30624MG/FG053FF16C000016External area : Accessing this area allows the user toaccess a device connected externallyto the microcomputer.Note : These memory maps show an instance in which PM13 is set to 0; but in the case of M30624MG/FG,they show an instance in which PM13 is set to 1.Figure 1.10.1. Memory maps in each processor mode (without memory area expansion, normal mode)30
Page 1 and 2: To all our customersRegarding the c
Page 3 and 4: Keep safety first in your circuit d
Page 5 and 6: This manual comprises of eight chap
Page 7 and 8: Table of ContentsChapter 1 Hardware
Page 9 and 10: 2.5 Clock-Asynchronous Serial I/O (
Page 11 and 12: 4.2.1 Interrupt Enable Flag .......
Page 13 and 14: Quick Reference to Pages Classified
Page 15 and 16: Quick Reference to Pages Classified
Page 17 and 18: DescriptionMitsubishi microcomputer
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Page 31 and 32: ResetMitsubishi microcomputersM16C
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Page 37 and 38: Memory Space Expansion FunctionsMit
Page 43: Software ResetMitsubishi 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
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Timer AMitsubishi microcomputersM16
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Timer BMitsubishi microcomputersM16
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Serial I/OMitsubishi microcomputers
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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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CRCMitsubishi microcomputersM16C /
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Programmable I/O PortMitsubishi mic
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Usage precautionMitsubishi microcom
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Electrical characteristicsMitsubish
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TimingMitsubishi microcomputersM16C
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Timing (Vcc = 5V)Mitsubishi microco
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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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SI/O3, 4Mitsubishi microcomputersM1
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Address Match InterruptMitsubishi m
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ApplicationsMitsubishi microcompute
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Standard CharacteristicsMitsubishi
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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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