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MPD789322 Datasheet(PDF) 6 Page - NEC |
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MPD789322 Datasheet(HTML) 6 Page - NEC |
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6 / 96 page  Preliminary Product Information U14673EJ1V0PM00 6 µµµµPD789322,789324,789326,789327 CONTENTS 1. PIN CONFIGURATION (TOP VIEW)..................................................................................................... 8 2. BLOCK DIAGRAM ................................................................................................................................. 9 3. PIN FUNCTIONS .................................................................................................................................. 10 3.1 Port Pins ....................................................................................................................................... 10 3.2 Non-Port Pins............................................................................................................................... 11 3.3 Pin I/O Circuits and Recommended Connection of Unused Pins .......................................... 12 4. CPU ARCHITECTURE ......................................................................................................................... 14 4.1 Memory Space ............................................................................................................................. 14 4.2 Data Memory Addressing ........................................................................................................... 15 4.3 Processor Registers.................................................................................................................... 16 5. PERIPHERAL HARDWARE FUNCTIONS.......................................................................................... 20 5.1 Ports ............................................................................................................................................. 20 5.2 Clock Generator........................................................................................................................... 26 5.3 8-Bit Timer 30, 40......................................................................................................................... 31 5.4 Watch Timer ................................................................................................................................. 41 5.5 Watchdog Timer .......................................................................................................................... 44 5.6 Serial Interface 10 ........................................................................................................................ 46 5.7 LCD Controller/Driver.................................................................................................................. 50 6. INTERRUPT FUNCTION ...................................................................................................................... 56 6.1 Interrupt Types ............................................................................................................................ 56 6.2 Interrupt Sources and Configuration ........................................................................................56 6.3 Interrupt Function Control Registers ........................................................................................ 59 7. STANDBY FUNCTION ......................................................................................................................... 65 7.1 Standby Function ........................................................................................................................ 65 7.2 Standby Function Control Register........................................................................................... 67 8. RESET FUNCTION............................................................................................................................... 68 8.1 Reset Function............................................................................................................................. 68 8.2 Power Failure Detection Function ............................................................................................. 70 9. MASK OPTION ...................................................................................................................................... 71 10. INSTRUCTION SET OVERVIEW ...................................................................................................... 72 10.1 Conventions............................................................................................................................... 72 10.2 Operations.................................................................................................................................. 74 11. ELECTRICAL SPECIFICATIONS ...................................................................................................... 79 12. PACKAGE DRAWING......................................................................................................................... 90 |
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