NEC PD789860 Manuals

Manuals and User Guides for NEC PD789860. We have 1 NEC PD789860 manual available for free PDF download: User Manual

NEC PD789860 User Manual (210 pages)

8-Bit Single-Chip Microcontrollers PD789860 Subseries; PD789861 Subseries

Brand: NEC | Category: Microcontrollers | Size: 1.34 MB

Table of Contents
10
CHAPTER 1 GENERAL ( Μ PD789860 SUBSERIES)

21
- Features
  
  21
- Applications
  
  21
- Ordering Information
  
  21
- Quality Grade
  
  22
- Pin Configuration (Top View)
  
  22
- 0S Series Lineup
  
  23
- Block Diagram
  
  26
- Overview of Functions
  
  27
- Differences between Standard Quality Grade Products and (A) Products
  
  27
CHAPTER 2 GENERAL ( Μ PD789861 SUBSERIES)

28
- Features
  
  28
- Applications
  
  28
- Ordering Information
  
  28
- Pin Configuration (Top View)
  
  29
- 0S Series Lineup
  
  30
- Block Diagram
  
  33
- Overview of Functions
  
  34
Chapter 3 Pin Functions

35
- Pin Function List
  
  35
- Description of Pin Functions
  
  36
  - P00 to P07 (Port 0)
    36
  - P20, P21 (Port 2)
    36
  - P40 to P43 (Port 4)
    36
  - Reset
    36
  - X1, X2 ( Μ PD789860 Subseries)
    36
  - CL1, CL2 ( Μ PD789861 Subseries)
    36
  - VDD
    37
  - Vss
    37
  - VPP ( Μ PD78E9860A, 78E9861A Only)
    37
  - IC (Mask ROM Version Only)
    37
- Pin I/O Circuits and Recommended Connection of Unused Pins
  
  38
Chapter 4 Cpu Architecture

39
- Memory Space
  
  39
- Processor Registers
  
  44
  - Control Registers
    44
  - Stack Pointer Configuration
    45
    
    General-Purpose Registers
    46
    
    Special Function Registers (Sfrs)
    47
    
    Special Function Registers
    48
- Instruction Address Addressing
  
  49
  - Relative Addressing
    49
  - Immediate Addressing
    50
  - Register Addressing
    51
- Operand Address Addressing
  
  52
  - Direct Addressing
    52
  - Short Direct Addressing
    53
  - Special Function Register (SFR) Addressing
    54
  - Register Addressing
    55
  - Register Indirect Addressing
    56
  - Based Addressing
    57
  - Stack Addressing
    57
Chapter 5 Eeprom (Data Memory)

58
- Memory Space
  
  58
- EEPROM Configuration
  
  58
- EEPROM Control Register
  
  58
  - Format of EEPROM Write Control Register 10
    59
- Notes for EEPROM Writing
  
  61
Chapter 6 Port Functions

63
- Port Functions
  63
- Port Configuration
  
  63
  - Port 0
    64
  - Port 2
    65
  - Port 4
    66
- Port Function Control Registers
  
  67
- Operation of Port Functions
  
  68
  - Writing to I/O Port
    68
  - Reading from I/O Port
    68
  - Arithmetic Operation of I/O Port
    68
CHAPTER 7 CLOCK GENERATOR ( Μ PD789860 SUBSERIES)

69
- Clock Generator Functions
  
  69
- Clock Generator Configuration
  
  69
- Clock Generator Control Register
  
  70
- System Clock Oscillators
  
  71
- Clock Generator Operation
  
  74
- Changing Setting of CPU Clock
  
  75
  - Time Required for Switching CPU Clock
    75
  - Switching CPU Clock
    75
CHAPTER 8 CLOCK GENERATOR ( Μ PD789861 SUBSERIES)

76
- Clock Generator Functions
  
  76
- Clock Generator Configuration
  
  76
- Clock Generator Control Register
  
  77
- System Clock Oscillators
  
  78
- Clock Generator Operation
  
  81
- Changing Setting of CPU Clock
  
  82
  - Time Required for Switching CPU Clock
    82
  - Switching CPU Clock
    82
Chapter 9 8-Bit Timers 30 and 40

83
Chapter 10 Watchdog Timer

118
- Watchdog Timer Functions
  
  118
- Watchdog Timer Configuration
  
  119
- Watchdog Timer Control Registers
  
  120
  - Format of Watchdog Timer Mode Register
    121
- Watchdog Timer Operation
  
  122
  - Operation as Watchdog Timer
    122
  - Operation as Interval Timer
    123
Chapter 11 Power-On-Clear Circuits

124
Chapter 12 Bit Sequential Buffer

132
- Bit Sequential Buffer Functions
  
  132
- Bit Sequential Buffer Configuration
  
  132
- Bit Sequential Buffer Control Register
  
  133
- Bit Sequential Buffer Operation
  
  134
Chapter 13 Key Return Circuit

135
- Key Return Circuit Function
  
  135
- Key Return Circuit Configuration and Operation
  
  135
Chapter 14 Interrupt Functions

136
Chapter 15 Standby Function

148
- Standby Function and Configuration
  
  148
  - Standby Function
    148
  - Standby Function Control Register
    149
- Standby Function Operation
  
  150
  - HALT Mode
    150
  - Releasing HALT Mode by Interrupt
    151
  - Releasing HALT Mode by RESET Input
    152
    
    STOP Mode
    153
  - Releasing STOP Mode by Interrupt
    154
  - Releasing STOP Mode by RESET Input
    155
Chapter 16 Reset Function

156
- Reset Timing by RESET Input
  157
- Status of Hardware after Reset
  158
CHAPTER 17 Μ PD78E9860A, 78E9861A

159
- EEPROM Features (Program Memory)
  
  160
  - Programming Environment
    160
  - Communication Mode
    161
  - Example of Connection with Dedicated Flash Programmer
    162
  - Pin Connection List
    163
    
    On-Board Pin Processing
    164
  - Signal Conflict (Input Pin of Serial Interface)
    165
  - Signal Conflict (RESET Pin)
    166
    
    Connection of Adapter for EEPROM Writing
    167
Chapter 18 Mask Options

169
Chapter 19 Instruction Set Overview

170
- Operation
  
  170
- Operation List
  
  172
- Instructions Listed by Addressing Type
  
  177
Chapter 20 Electrical Specifications

180
Chapter 21 Example of Rc Oscillation Frequency Characteristics

195
- (Reference Values)
  195
Chapter 22 Package Drawing

196
Chapter 23 Recommended Soldering Conditions

197
Appendix A Development Tools

199
- A-1 Development Tools
  200
- Software Package
  
  201
- Language Processing Software
  
  201
  - A.1 Software Package
    201
- Control Software
  
  202
- EEPROM (Program Memory) Writing Tools
  
  202
  - A.3 Control Software
    202
- Debugging Tools (Hardware)
  
  203
- Debugging Tools (Software)
  
  204
Appendix B Notes on Target System Design

205
Appendix C Register Index

206
- Register Name Index (in Alphabetical Order)
  
  206
- Register Symbol Index (in Alphabetical Order)
  
  207
Appendix D Revision History

208

NEC Categories

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Telephone Computer Hardware

More NEC Manuals

NEC PD789860 Manuals

NEC PD789860 User Manual (210 pages)

Table of Contents

CHAPTER 1 GENERAL ( Μ PD789860 SUBSERIES)

Features

Applications

Ordering Information

Quality Grade

Pin Configuration (Top View)

0S Series Lineup

Block Diagram

Overview of Functions

Differences between Standard Quality Grade Products and (A) Products

CHAPTER 2 GENERAL ( Μ PD789861 SUBSERIES)

Features

Applications

Ordering Information

Pin Configuration (Top View)

0S Series Lineup

Block Diagram

Overview of Functions

Chapter 3 Pin Functions

Pin Function List

Description of Pin Functions

Pin I/O Circuits and Recommended Connection of Unused Pins

Chapter 4 Cpu Architecture

Memory Space

Processor Registers

Instruction Address Addressing

Operand Address Addressing

Chapter 5 Eeprom (Data Memory)

Memory Space

EEPROM Configuration

EEPROM Control Register

Notes for EEPROM Writing

Chapter 6 Port Functions

Port Configuration

Port Function Control Registers

Operation of Port Functions

CHAPTER 7 CLOCK GENERATOR ( Μ PD789860 SUBSERIES)

Clock Generator Functions

Clock Generator Configuration

Clock Generator Control Register

System Clock Oscillators

Clock Generator Operation

Changing Setting of CPU Clock

CHAPTER 8 CLOCK GENERATOR ( Μ PD789861 SUBSERIES)

Clock Generator Functions

Clock Generator Configuration

Clock Generator Control Register

System Clock Oscillators

Clock Generator Operation

Changing Setting of CPU Clock

Chapter 9 8-Bit Timers 30 and 40

8-Bit Timers 30, 40 Functions

8-Bit Timers 30, 40 Configuration

8-Bit Timers 30, 40 Control Registers

8-Bit Timers 30, 40 Operation

Notes on Using 8-Bit Timers 30, 40

Chapter 10 Watchdog Timer

Watchdog Timer Functions

Watchdog Timer Configuration

Watchdog Timer Control Registers

Watchdog Timer Operation

Chapter 11 Power-On-Clear Circuits

Power-On-Clear Circuit Functions

Power-On-Clear Circuit Configuration

Power-On-Clear Circuit Control Registers

Power-On-Clear Circuit Operation

Chapter 12 Bit Sequential Buffer

Bit Sequential Buffer Functions

Bit Sequential Buffer Configuration

Bit Sequential Buffer Control Register

Bit Sequential Buffer Operation

Chapter 13 Key Return Circuit

Key Return Circuit Function

Key Return Circuit Configuration and Operation

Chapter 14 Interrupt Functions

Interrupt Function Types

Interrupt Sources and Configuration