NEC switch User Manual

NEC Hardware

User’s Manual

µµµµPD789800

µµµµPD78F9801

µµµµ

PD789800 Subseries

8-Bit Single-Chip Microcontrollers

Printed in Japan

Document No. U12978EJ3V0UD00 (3rd edition)
Date Published February 2003 N CP (K)

1998, 2003

Table of contents

Document Outline

COVER
Major Revisions in This Edition
INTRODUCTION
CHAPTER 1 GENERAL
- 1.1 Features
- 1.2 Applications
- 1.3 Ordering Information
- 1.4 Pin Configuration (Top View)
- 1.5 78K/0S Series Lineup
- 1.6 Block Diagram
- 1.7 Functions
CHAPTER 2 PIN FUNCTIONS
- 2.1 List of Pin Functions
- 2.2 Pin Functions
- 2.3 Pin I/O Circuits and Recommended Connection of Unused Pins
CHAPTER 3 CPU ARCHITECTURE
- 3.1 Memory Space
- 3.2 Processor Registers
- 3.3 Instruction Address Addressing
- 3.4 Operand Address Addressing
CHAPTER 4 PORT FUNCTIONS
- 4.1 Port Functions
- 4.2 Port Configuration
- 4.3 Registers Controlling Port Function
- 4.4 Port Function Operation
CHAPTER 5 CLOCK GENERATOR
- 5.1 Clock Generator Functions
- 5.2 Clock Generator Configuration
- 5.3 Register Controlling Clock Generator
- 5.4 System Clock Oscillators
- 5.5 Clock Generator Operation
- 5.6 Changing Setting of CPU Clock
  - 5.6.1 Time required for switching CPU clock
  - 5.6.2 Switching CPU clock
CHAPTER 6 8-BIT TIMER/EVENT COUNTERS 00 AND 01
- 6.1 Functions of 8-Bit Timer/Event Counters 00 and 01
- 6.2 Configuration of 8-Bit Timer/Event Counters 00 and 01
- 6.3 Registers Controlling 8-Bit Timer/Event Counters 00 and 01
- 6.4 Operation of 8-Bit Timer/Event Counters 00 and 01
- 6.5 Notes on Using 8-Bit Timer/Event Counters 00 and 01
CHAPTER 7 WATCHDOG TIMER
- 7.1 Watchdog Timer Functions
- 7.2 Watchdog Timer Configuration
- 7.3 Registers Controlling Watchdog Timer
- 7.4 Watchdog Timer Operation
  - 7.4.1 Operation as watchdog timer
  - 7.4.2 Operation as interval timer
CHAPTER 8 USB FUNCTION
- 8.1 USB Overview
- 8.2 USB Function Features
- 8.3 USB Function Configuration
- 8.4 Registers Controlling USB Function
- 8.5 USB Function Operation
  - 8.5.1 USB timer operation
  - 8.5.2 Remote wakeup control operation
- 8.6 Interrupt Request from USB Function
  - 8.6.1 Interrupt sources
  - 8.6.2 Cautions when using interrupts
- 8.7 USB Function Control
  - 8.7.1 Relationship between packets and operation modes
  - 8.7.2 Interrupt servicing flow
- 8.8 USB Function Internal Circuit Operations
CHAPTER 9 SERIAL INTERFACE 10
- 9.1 Functions of Serial Interface 10
- 9.2 Configuration of Serial Interface 10
- 9.3 Register Controlling Serial Interface 10
- 9.4 Operation of Serial Interface 10
  - 9.4.1 Operation stop mode
  - 9.4.2 3-wire serial I/O mode
CHAPTER 10 REGULATOR
CHAPTER 11 INTERRUPT FUNCTIONS
- 11.1 Interrupt Function Types
- 11.2 Interrupt Sources and Configuration
- 11.3 Registers Controlling Interrupt Function
- 11.4 Interrupt Servicing Operation
CHAPTER 12 STANDBY FUNCTION
- 12.1 Standby Function and Configuration
  - 12.1.1 Standby function
  - 12.1.2 Register controlling standby function
- 12.2 Standby Function Operation
  - 12.2.1 HALT mode
  - 12.2.2 STOP mode
CHAPTER 13 RESET FUNCTION
CHAPTER 14 uPD78F9801
- 14.1 Flash Memory Characteristics
CHAPTER 15 INSTRUCTION SET
- 15.1 Operation
- 15.2 Operation List
- 15.3 Instructions Listed by Addressing Type
CHAPTER 16 ELECTRICAL SPECIFICATIONS
CHAPTER 17 PACKAGE DRAWINGS
CHAPTER 18 RECOMMENDED SOLDERING CONDITIONS
- A.1 Software Package
- A.2 Language Processing Software
- A.3 Control Software
- A.4 Flash Memory Writing Tools
- A.5 Debugging Tools (Hardware)
- A.6 Debugging Tools (Software)
- A.7 Notes on Target System Design
APPENDIX A DEVELOPMENT TOOLS
APPENDIX B REGISTER INDEX
- B.1 Register Index (Alphabetic Order of Register Name)
- B.2 Register Index (Alphabetic Order of Register Symbol)
APPENDIX C REVISION HISTORY