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User’s Manual
μPD78078, 78078Y Subseries
8-bit Single-chip Microcontrollers
μPD78076
μPD78078
μPD78P078
μPD78076Y
μPD78078Y
μPD78P078Y
Document No. U10641EJ4V0UM00 (4th edition)
Date Published December 1997 N
© 1994
Printed in Japan
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NOTES FOR CMOS DEVICES 1 PRECAUTION AGAINST ESD FOR SEMICONDUCTORS Note: Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and ultimately degrade the device operation. Steps must be taken to stop generation of static electricity as much as possible, and quickly dissipate it once, when it has occurred. Environmental control must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using insulators that easily build stati
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The export of these products from Japan is regulated by the Japanese government. The export of some or all of these products may be prohibited without governmental license. To export or re-export some or all of these products from a country other than Japan may also be prohibited without a license from that country. Please call an NEC sales representative. License not needed: μPD78P078KL-T, 78P078YKL-T The customer must judge the need for license: μPD78076GC-xxx-7EA, 78076GC-xxx-8EU, 78076GF-
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Regional Information Some information contained in this document may vary from country to country. Before using any NEC product in your application, please contact the NEC office in your country to obtain a list of authorized representatives and distributors. They will verify: • Device availability • Ordering information • Product release schedule • Availability of related technical literature • Development environment specifications (for example, specifications for third-party tools and compo
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Major Revisions in This Edition Page Description Throughout The following products have been changed from “under development” to “already developed”. μPD78078Y Subseries: μPD78076Y, 78078Y, 78P078Y The following packages have been added to the μPD78078Y Subseries. 100-pin plastic LQFP (Fine pitch) (14 × 14 mm, resin thickness 1.4 mm) p. 139 to 143, Block diagrams of ports have been changed. 149, 153 Figure 6-5. Block Diagram of P20, P21, P23 to P26, Figure 6-6. Block Diagram of P22 and P27, Figu
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INTRODUCTION Readers This manual has been prepared for user engineers who understand the functions of the μPD78078 and 78078Y Subseries and design and develop its application systems and programs. The μPD78078 and 78078Y Subseries consist of the following members. • μPD78078 Subseries: μPD78076, 78078, 78P078 • μPD78078Y Subseries: μPD78076Y, 78078Y, 78P078Y Caution Of the above members, the following devices with the suffix KL-T should be used only for experiment or function evaluation, because
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Chapter Organization: This manual divides the descriptions for the μPD78078 and 78078Y Subseries into different chapters as shown below. Read only the chapters related to the device you use. Chapter μPD78078 μPD78078Y Subseries Subseries Chapter 1 Outline (μPD78078 Subseries) √ — Chapter 2 Outline (μPD78078Y Subseries) — √ Chapter 3 Pin Function (μPD78078 Subseries) √ — Chapter 4 Pin Function (μPD78078Y Subseries) — √ Chapter 5 CPU Architecture √√ Chapter 6 Port Functions √√ Chapter 7 Clock Gen
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Differences between μPD78078 and μPD78078Y Subseries The μPD78078 and μPD78078Y Subseries are different in the following functions of the serial interface channel 0. Mode of serial interface channel 0 μPD78078 μPD78078Y Subseries Subseries 3-wire serial I/O mode √√ 2-wire serial I/O mode √√ bus interface) mode √ — SBI (serial 2 I C (Inter IC) bus mode — √ √ : Supported — : Not supported Legend Data significance : High digits on the left and low digits on the right Active low representations : x
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• Development Tool Documents (User’s Manuals) Document Name Document No. English Japanese RA78K Series Assembler Package Operation EEU-1399 EEU-809 Language EEU-1404 EEU-815 RA78K Series Structured Assembler Preprocessor EEU-1402 U12323J RA78K0 Assembler Package Operation U11802E U11802J Language U11801E U11801J Structured Assembly U11789E U11789J Language CC78K Series C Compiler Operation EEU-1280 EEU-656 Language EEU-1284 EEU-655 CC78K0 C Compiler Operation U11517E U11517J Language U11518E U11
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• Documents for Embedded Software (User’s Manuals) Document Name Document No. English Japanese 78K/0 Series Real-time OS Basics U11537E U11537J Installation U11536E U11536J 78K/0 Series OS MX78K0 Basics U12257E U12257J • Other Documents Document Name Document No. English Japanese IC Package Manual C10943X Semiconductor Device Mounting Technology Manual C10535E C10535J Quality Grades on NEC Semiconductor Devices C11531E C11531J NEC Semiconductor Device Reliability/Quality Control System U10983E
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TABLE OF CONTENTS CHAPTER 1 OUTLINE (μPD78078 SUBSERIES) ................................................................................. 33 1.1 Features .................................................................................................................................. 33 1.2 Application Fields .................................................................................................................. 34 1.3 Ordering Information............................................
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3.2.17 AVSS ............................................................................................................................................. 76 3.2.18 RESET ......................................................................................................................................... 76 3.2.19 X1 and X2 .................................................................................................................................... 76 3.2.20 XT1 and XT2 .................
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5.2 Processor Registers ............................................................................................................ 110 5.2.1 Control registers ........................................................................................................................ 110 5.2.2 General registers ....................................................................................................................... 113 5.2.3 Special function register (SFR) ............................
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CHAPTER 7 CLOCK GENERATOR .................................................................................................... 165 7.1 Clock Generator Functions ................................................................................................ 165 7.2 Clock Generator Configuration.......................................................................................... 166 7.3 Clock Generator Control Register........................................................................
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CHAPTER 10 8-BIT TIMER/EVENT COUNTERS 5 AND 6................................................................. 249 10.1 8-Bit Timer/Event Counters 5 and 6 Functions ............................................................... 249 10.2 8-Bit Timer/Event Counters 5 and 6 Configurations ...................................................... 252 10.3 8-Bit Timer/Event Counters 5 and 6 Control Registers ................................................. 254 10.4 8-Bit Timer/Event Counters 5 and 6
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CHAPTER 16 D/A CONVERTER ......................................................................................................... 309 16.1 D/A Converter Functions .................................................................................................... 309 16.2 D/A Converter Configuration ............................................................................................. 310 16.3 D/A Converter Control Registers .............................................................
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CHAPTER 21 REAL-TIME OUTPUT PORT ........................................................................................ 495 21.1 Real-Time Output Port Functions ..................................................................................... 495 21.2 Real-Time Output Port Configuration ............................................................................... 495 21.3 Real-Time Output Port Control Registers ........................................................................ 49
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CHAPTER 27 μPD78P078, 78P078Y .................................................................................................. 569 27.1 Internal Memory Size Switching Register ........................................................................ 570 27.2 Internal Extension RAM Size Switching Register ........................................................... 571 27.3 PROM Programming..........................................................................................................
