uPD789074 Subseries 8-Bit Single-Chip Microcontrollers UD - Home

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CHAPTER 1 GENERAL1.9 Overview of FunctionsItemPart NumberµPD789071µPD789071(A)µPD789072µPD789072(A)µPD789074µPD789074(A)µPD78F9076Internal memoryROMMask ROMFlash memory2 KB 4 KB 8 KB 16 KBHigh-speed RAMMinimum instruction execution timeGeneral-purpose registersInstruction set256 bytes0.2/0.8 µs (@10.0 MHz, VDD = 4.5 to 5.5 V operation with system clock)8 bits × 8 registers• 16-bit operations• Bit manipulations (such as set, reset, and test)I/O ports CMOS I/O: 24Serial interfaceSwitchable between 3-wire serial I/O and UART modes: 1 channelTimers • 16-bit timer: 1 channel• 8-bit timer/event counter: 1 channel• Watchdog timer:1 channelTimer outputs 2Vectored interruptMaskable Internal: 5, external: 3sources Non-maskable Internal: 1Power supply voltageOperating ambient temperatureVDD = 1.8 to 5.5 VTA = −40 to +85°CPackage 30-pin plastic SSOP (7.62 mm (300))The outline of the timers are as follows.16-Bit Timer 908-Bit Timer/Event Counter80Watchdog TimerOperatingmodeFunctionInterval timer − 1 channel 1 channel NoteExternal event counter − 1 channel −Timer outputs 1 1 −PWM outputs − 1 −Square-wave outputs − 1 −Buzzer outputs 1 − −Capture 1 input − −Interrupt sources 1 1 2Note The watchdog timer provides a watchdog timer function and interval timer function. Use either of thefunctions.28User’s Manual U14801EJ3V1UD
CHAPTER 1 GENERAL1.10 Differences Between Standard Quality Grade Products and (A) ProductsThe differences between standard grade products (µPD789071, 789072, 789074) and (A) products(µPD789071(A), 789072(A), 789074(A)) are shown in Table 1-2.Table 1-2. Differences Between Standard Quality Grade Products and (A) ProductsPart NumberStandard Products(A) ProductsItemQuality grade Standard SpecialElectrical specificationsRefer to CHAPTER 15 ELECRIDAL SPECIFICATIONS (EXPANDED-SPECIFICATIONPRODUCTS) and CHAPTER 16 ELECTRICAL SPECIFICATIONS (CONVENTIONALPRODUCTS)User’s Manual U14801EJ3V1UD 29
Page 1 and 2: User’s ManualµPD789074 Subseries
Page 3 and 4: NOTES FOR CMOS DEVICES1VOLTAGE APPL
Page 5 and 6: Regional InformationSome informatio
Page 7 and 8: INTRODUCTIONReadersPurposeOrganizat
Page 9: Documents for Flash Memory WritingP
Page 13 and 14: CHAPTER 11 STANDBY FUNCTION .......
Page 15 and 16: LIST OF FIGURES (1/3)Figure No. Tit
Page 17 and 18: LIST OF FIGURES (3/3)Figure No. Tit
Page 19 and 20: LIST OF TABLES (2/2)Table No. Title
Page 21 and 22: CHAPTER 1 GENERAL1.2 Features• RO
Page 23 and 24: CHAPTER 1 GENERAL1.6 Pin Configurat
Page 25 and 26: CHAPTER 1 GENERALThe major function
Page 27: CHAPTER 1 GENERAL1.8 Block DiagramT
Page 31 and 32: CHAPTER 2 PIN FUNCTIONS(2) Non-port
Page 33 and 34: CHAPTER 2 PIN FUNCTIONS(h) RxD20, T
Page 35 and 36: CHAPTER 2 PIN FUNCTIONS2.3 Pin I/O
Page 37 and 38: CHAPTER 3 CPU ARCHITECTURE3.1 Memor
Page 39 and 40: CHAPTER 3 CPU ARCHITECTUREFigure 3-
Page 41 and 42: CHAPTER 3 CPU ARCHITECTURE3.1.1 Int
Page 47 and 48: CHAPTER 3 CPU ARCHITECTURE(a) Inter
Page 49 and 50: CHAPTER 3 CPU ARCHITECTURE3.2.2 Gen
Page 51 and 52: CHAPTER 3 CPU ARCHITECTURETable 3-3
Page 53 and 54: CHAPTER 3 CPU ARCHITECTURE3.3 Instr
Page 55 and 56: CHAPTER 3 CPU ARCHITECTURE3.3.3 Tab
Page 57 and 58: CHAPTER 3 CPU ARCHITECTURE3.4.2 Sho
Page 59 and 60: CHAPTER 3 CPU ARCHITECTURE3.4.4 Reg
Page 61 and 62: CHAPTER 3 CPU ARCHITECTURE3.4.6 Bas
Page 63 and 64: CHAPTER 4 PORT FUNCTIONSTable 4-1.
Page 65 and 66: CHAPTER 4 PORT FUNCTIONS4.2.2 Port
Page 67 and 68: CHAPTER 4 PORT FUNCTIONSFigure 4-5.
Page 69 and 70: CHAPTER 4 PORT FUNCTIONSFigure 4-7.
Page 71 and 72: CHAPTER 4 PORT FUNCTIONS4.3 Port Fu
Page 73 and 74: CHAPTER 4 PORT FUNCTIONS(3) Pull-up
Page 75 and 76: CHAPTER 5 CLOCK GENERATOR5.1 Clock
Page 77 and 78: CHAPTER 5 CLOCK GENERATOR5.4 System
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CHAPTER 5 CLOCK GENERATORFigure 5-4
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CHAPTER 5 CLOCK GENERATOR5.6 Changi
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Figure 6-1. Block Diagram of 16-Bit
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CHAPTER 6 16-BIT TIMER 906.3 Contro
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CHAPTER 6 16-BIT TIMER 90(2) Buzzer
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CHAPTER 6 16-BIT TIMER 906.4 Operat
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CHAPTER 6 16-BIT TIMER 906.4.2 Oper
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CHAPTER 6 16-BIT TIMER 906.4.4 16-b
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CHAPTER 6 16-BIT TIMER 906.5 Notes
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CHAPTER 7 8-BIT TIMER/EVENT COUNTER
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CHAPTER 8 WATCHDOG TIMER8.1 Watchdo
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CHAPTER 9 SERIAL INTERFACE 209.1 Fu
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Figure 9-2. Block Diagram of Baud R
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CHAPTER 9 SERIAL INTERFACE 209.3 Co
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CHAPTER 9 SERIAL INTERFACE 20(1) Op
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CHAPTER 9 SERIAL INTERFACE 20(4) Ba
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CHAPTER 9 SERIAL INTERFACE 20(b) Ge
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CHAPTER 9 SERIAL INTERFACE 209.4.2
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CHAPTER 9 SERIAL INTERFACE 20(b) As
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CHAPTER 9 SERIAL INTERFACE 20(d) Ba
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CHAPTER 9 SERIAL INTERFACE 20(2) Co
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CHAPTER 9 SERIAL INTERFACE 20(c) Tr
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CHAPTER 9 SERIAL INTERFACE 20(e) Re
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CHAPTER 9 SERIAL INTERFACE 20(3) Ca
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CHAPTER 9 SERIAL INTERFACE 20(b) As
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CHAPTER 9 SERIAL INTERFACE 20(2) Co
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CHAPTER 9 SERIAL INTERFACE 20Figure
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CHAPTER 10 INTERRUPT FUNCTIONSTable
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CHAPTER 10 INTERRUPT FUNCTIONS10.3
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CHAPTER 10 INTERRUPT FUNCTIONS(2) I
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CHAPTER 10 INTERRUPT FUNCTIONS(4) P
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CHAPTER 10 INTERRUPT FUNCTIONSFigur
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CHAPTER 11 STANDBY FUNCTION11.1 Sta
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CHAPTER 11 STANDBY FUNCTION11.2 Ope
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CHAPTER 11 STANDBY FUNCTION11.2.2 S
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CHAPTER 12 RESET FUNCTIONThe follow
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CHAPTER 12 RESET FUNCTIONTable 12-1
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CHAPTER 13 µPD78F907613.1 Flash Me
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CHAPTER 13 µPD78F9076Figure 13-3.
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CHAPTER 13 µPD78F907613.1.3 On-boa
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CHAPTER 13 µPD78F9076When the rese
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CHAPTER 13 µPD78F9076Figure 13-9.
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CHAPTER 14 INSTRUCTION SET OVERVIEW
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CHAPTER 15 ELECTRICAL SPECIFICATION
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CHAPTER 18 RECOMMENDED SOLDERING CO
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APPENDIX A DEVELOPMENT TOOLSThe fol
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APPENDIX A DEVELOPMENT TOOLSA.1 Sof
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APPENDIX A DEVELOPMENT TOOLSA.4 Fla
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APPENDIX B NOTES ON TARGET SYSTEM D
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APPENDIX C REGISTER INDEXC.1 Regist
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APPENDIX C REGISTER INDEXC.2 Regist
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APPENDIX D REVISION HISTORYThe foll
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uPD789074 Subseries 8-Bit Single-Chip Microcontrollers UD - Home

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