M16C/62 Group DATASHEET

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Memory Space Expansion FunctionsMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERA connection exampleFigure 1.8.3 shows a connection example of the MCU with the external memories in expansion mode 1.______________In this example, CS0 is connected with a 1-M byte flash ROM and CS2 is connected with a 128-K byteSRAM.An example of connecting the MCU with external memories in expansion mode 1(An example of using M30622MC in microprocessor mode)M30622MCD0 to D7A0 to A16A17A18A19CS1CS2CS3RDCS0817DQ0 to DQ7AD0 to AD16AD17AD18AD19OECS1M byte flash ROMWRDQ0 to DQ7AD0 to AD16OES2S1W128K bytes SRAM00000160040016SFR areaInternal RAMarea017FF16Internal area reserved0400016080001628000163000016D000016FFFFF16External areaSRAM(128K bytes)Usable fordata onlyCS2(128K bytes)FlashROM(1M byte)Usable forprograms onlyUsable both forprograms andfor dataCS0(1008K bytes)Figure 1.8.3. External memory connect example in expansion mode 123
Memory Space Expansion FunctionsMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTER(3) Expansion mode 2In expansion mode 2, the data bank register (0000B16) goes effective. Figure 1.8.4 shows the data bankregister.Data bank registerb7 b6 b5 b4 b3 b2 b1 b0Symbol Address When resetDBR 000B16 0016Bit symbol Bit nameDescriptionNothing is assigned.In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.R WOFS Offset bit 0: Not offset1: OffsetBSRBank selection bitsb5 b4 b3b5 b4 b30 0 0: Bank 0 0 0 1: Bank 10 1 0: Bank 2 0 1 1: Bank 31 0 0: Bank 4 1 0 1: Bank 51 1 0: Bank 6 1 1 1: Bank 7Nothing is assigned.In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.Figure 1.8.4. Data bank registerExpansion mode 2 (memory space = 4M bytes for PM15 = 1, PM14 = 1)00000160040016XXXXX16MicroprocessormodeSFR areaInternal RAM areaInternal area reservedExternal area External areaInternal area reservedInternal ROM area0400016080001628000164000016D000016YYYYY16Memoryexpansion modeSFR areaInternal RAM areaInternal area reservedFFFFF16Type No. Address XXXXX16 Address YYYYY16M30622M4 00FFF16 F800016M30620M8 02BFF16 F000016M30620MA02BFF16E800016M30620MC/EC 02BFF16E000016M30622M8/E8013FF16F000016M30622MA017FF16E800016M30622MC017FF16E000016M30624MG/FG 053FF16C000016CS3 (16K bytes)CS2 (128K bytes)CS1 (96K bytes)CS0Memory expansion mode:512K bytes x 7banks +256K bytesMicroprocessor mode:512K bytes x 8banksAddresses from 4000016 through BFFFF16Bank 7 in fetching a programA bank selected by use of the bank selectionbits in accessing dataAddresses from C000016 through FFFFF16Bank 7 invariablyBank number is output to CS3 to CS1Note 1: These memory maps show an instance in which PM13 is set to 0; but in the case of M30624MG/FG, theyshow an instance in which PM13 is set to 1.Note 2: The memory maps in single-chip mode are omitted.Figure 1.8.5. Memory location and chip select area in expansion mode 224
Page 1 and 2: Customer Interface Publication: KCH
Page 3: DescriptionMitsubishi microcomputer
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Page 9 and 10: Pin DescriptionMitsubishi microcomp
Page 11 and 12: MemoryMitsubishi microcomputersM16C
Page 13 and 14: CPUMitsubishi microcomputersM16C /
Page 15 and 16: ResetMitsubishi microcomputersM16C
Page 17 and 18: ResetMitsubishi microcomputersM16C
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Page 41 and 42: Clock Generating CircuitMitsubishi
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Page 67 and 68: ________NMI InterruptMitsubishi mic
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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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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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Operating maximum frequency [MHZ]Op
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Electrical characteristics (Vcc = 5
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Timing (VCC=5V)Mitsubishi microcomp
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Timing (Vcc = 5V)Mitsubishi microco
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IssuancesignatureReceiptMitsubishi
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CPU Rewrite Mode (Flash Memory Vers
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Functions To Inhibit Rewriting (Fla
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Appendix Standard Serial I/O Mode (
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CNVSSRESETP93/DA0/TB3INP94/DA1/TB4I
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MITSUBISHI SEMICONDUCTORSM16C/62 Gr
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