NEC UPD789025 Manuals

Manuals and User Guides for NEC UPD789025. We have 1 NEC UPD789025 manual available for free PDF download: User Manual

NEC UPD789025 User Manual

NEC UPD789025 User Manual (213 pages)

8-Bit Single-Chip

Brand: NEC | Category: Microcontrollers | Size: 1.06 MB

Table of Contents

Section 1

3
- Table of Contents
  3
Section 2

13
- Applications
  23
- Chapter 1 General
  23
- Features
  23
- Ordering Information
  24
- Pin Configuration (Top View)
  25
- Development of 78K/0S Series
  28
- Block Diagram
  30
- Outline of Functions
  31
- Chapter 2 Pin Functions
  33
- List of Pin Functions
  33
- Description of Pin Functions
  35
- P00 to P07 (Port 0)
  35
- P10 to P17 (Port 1)
  35
- P20 to P22 (Port 2)
  35
- P30 to P32 (Port 3)
  36
- P40 to P47 (Port 4)
  36
- P50 to P53 (Port 5)
  37
- PD78F9026A Only)
  37
- Reset
  37
- VDD
  37
- Vss
  37
- X1, X2
  37
- IC (Mask ROM Model Only)
  38
- Pin Input/Output Circuits and Connection of Unused Pins
  39
- Chapter 3 Cpu Architecture
  41
- Memory Space
  41
- Internal Program Memory Space
  46
- Internal Data Memory (Internal High-Speed RAM) Space
  47
- Special Function Register (SFR) Area
  47
- Data Memory Addressing
  48
- Control Registers
  53
- Processor Registers
  53
- General-Purpose Registers
  56
- Special Function Register (SFR)
  57
- Instruction Address Addressing
  60
- Relative Addressing
  60
- Immediate Addressing
  61
- Register Addressing
  62
- Direct Addressing
  63
- Operand Address Addressing
  63
- Short Direct Addressing
  64
- Special Function Register (SFR) Addressing
  65
- Register Addressing
  66
- Register Indirect Addressing
  67
- Based Addressing
  68
- Stack Addressing
  68
- Chapter 4 Port Functions
  69
- Functions of Ports
  69
- Port 0
  71
- Port Configuration
  71
- Port 1
  72
- Port 2
  73
- Port 3
  76
- Port 4
  77
- Port 5
  78
- Port Function Control Registers
  81
- Arithmetic Operation of I/O Port
  83
- Operation of Port Functions
  83
- Reading from I/O Port
  83
- Writing to I/O Port
  83
- Chapter 5 Clock Generation Circuit
  85
- Configuration of Clock Generation Circuit
  85
- Function of Clock Generation Circuit
  85
- Register Controlling Clock Generation Circuit
  86
- System Clock Oscillation Circuit
  87
- System Clock Oscillation Circuits
  87
- Divider Circuit
  89
- Operation of Clock Generation Circuit
  90
- Changing Setting of System Clock and CPU Clock
  91
- Switching CPU Clock
  91
- Time Required for Switching between System Clock and CPU Clock
  91
- 16-Bit Timer Functions
  93
- Chapter 6 16-Bit Timer
  93
- 16-Bit Timer Configuration
  94
- Registers Controlling 16-Bit Timer
  96
- 16-Bit Timer Operation
  99
- Operation as Timer Interrupt
  99
- Operation as Timer Output
  101
- Capture Operation
  102
- 16-Bit Timer Counter 20 Readout
  103
- 8-Bit Timer/Event Counter Functions
  105
- Chapter 7 8-Bit Timer/Event Counter
  105
- 8-Bit Timer/Event Counter Configuration
  106
- 8-Bit Timer/Event Counter Control Registers
  107
- 8-Bit Timer/Event Counter Operation
  109
- Operation as Interval Timer
  109
- Operation as External Event Counter
  111
- Operation as Square Wave Output
  112
- Notes on Using 8-Bit Timer/Event Counters
  114
- Chapter 8 Watchdog Timer
  115
- Watchdog Timer Functions
  115
- Watchdog Timer Configuration
  116
- Watchdog Timer Control Registers
  117
- Operation as Watchdog Timer
  119
- Operation of Watchdog Timer
  119
- Operation as Interval Timer
  120
- Chapter 9 Serial Interface 00
  121
- Serial Interface 00 Configuration
  121
- Serial Interface 00 Functions
  121
- Serial Interface 00 Control Register
  125
- Operation Stop Mode
  132
- Serial Interface 00 Operation
  132
- Asynchronous Serial Interface (UART) Mode
  134
- 3-Wire Serial I/O Mode
  145
- Chapter 10 Interrupt Functions
  149
- Interrupt Function Types
  149
- Interrupt Sources and Configuration
  149
- Interrupt Function Control Registers
  152
- Interrupt Processing Operation
  158
- Non-Maskable Interrupt Request Acceptance Operation
  158
- Maskable Interrupt Request Acceptance Operation
  161
- Nesting Processing
  163
- Interrupt Request Reserve
  165
- Chapter 11 Standby Function
  167
- Standby Function
  167
- Standby Function and Configuration
  167
- Standby Function Control Register
  168
- HALT Mode
  169
- Operation of Standby Function
  169
- STOP Mode
  172
- Chapter 12 Reset Function
  175
- CHAPTER 13 Μ Μ Μ Μ PD78F9026A
  179
- Flash Memory Programming
  180
- Selecting Communication Mode
  180
- Connection Example of Flashpro III
  181
- Flash Memory Programming Function
  181
- Setting Example When Using Flashpro III (PG-FP3)
  183
- Chapter 14 Instruction Set
  185
- Operand Identifiers and Writing Methods
  185
- Operation
  185
- Description of "Flag" Column
  186
- Description of "Operation" Column
  186
- Operation List
  187
- Instructions Listed by Addressing Type
  192
- Appendix A Development Tools
  195
- Language Processing Software
  197
- Flash Memory Writing Tools
  198
- Debugging Tools
  199
- Hardware
  199
- Www.datasheet4U.com
  199
- Www.datasheet4U.com Software
  200
- Conversion Socket (EV-9200G-44) Drawing and Recommended Footprint
  201
- Conversion Adapter (TGB-044SAP) Drawing
  203
- Appendix B Embedded Software
  205
- Appendix C Register Index
  207
- Register Name Index
  207
- Register Symbol Index
  209
- Appendix D Revision History
  211

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