NEC mPD789462 Manuals

Manuals and User Guides for NEC mPD789462. We have 1 NEC mPD789462 manual available for free PDF download: Preliminary User's Manual

NEC mPD789462 Preliminary User's Manual (221 pages)

8-Bit Single-Chip Microcontrollers

Brand: NEC | Category: Microcontrollers | Size: 1 MB

Notes for Cmos Devices
3
Regional Information
5
Table of Contents
9
List of Tables
18
Chapter 1 General
20
Features
20
Applications
20
Ordering Information
21
Pin Configuration (Top View)
22
0S Series Lineup
24
Block Diagram
27
Overview of Functions
28
Chapter 2 Pin Functions
30
List of Pin Functions
30
Non-Port Pins
31
Description of Pin Functions
32
P00 to P03 (Port 0)
32
P10, P11 (Port 1)
32
P40 to P43 (Port 4)
32
P60, P61 (Port 6)
32
P80 to P85 (Port 8)
33
S0 to S16
33
COM0 to COM3
33
VLC0 to VLC2
33
Cath, Capl
33
Reset
33
X1, X2
33
Xt1, Xt2
33
VDD
33
Vss
33
Vpp
34
IC0 (Mask ROM Version Only)
34
Pin I/O Circuits and Recommended Connection of Unused Pins
35
Chapter 3 Cpu Architecture
37
Memory Space
37
Internal Program Memory Space
42
Internal Data Memory (Internal High-Speed RAM) Space
43
Special Function Register (SFR) Area
43
Data Memory Addressing
44
Processor Registers
49
Control Registers
49
General-Purpose Registers
52
Special Function Registers (Sfrs)
53
Instruction Address Addressing
55
Relative Addressing
55
Immediate Addressing
56
Register Addressing
57
Operand Address Addressing
58
Direct Addressing
58
Short Direct Addressing
59
Special Function Register (SFR) Addressing
60
Register Addressing
61
Register Indirect Addressing
62
Based Addressing
63
Stack Addressing
63
Chapter 4 Port Functions
64
Port Functions
64
Port Configuration
65
Port 0
65
Port 1
66
Port 4
67
Port 6
68
Port 8
70
Registers Controlling Port Function
71
Port Function Operation
74
Writing to I/O Port
74
Reading from I/O Port
74
Arithmetic Operation of I/O Port
74
Chapter 5 Clock Generator
75
Clock Generator Functions
75
Clock Generator Configuration
75
Registers Controlling Clock Generator
77
System Clock Oscillators
79
Main System Clock Oscillator
79
Subsystem Clock Oscillator
80
Divider Circuit
82
When no Subsystem Clock Is Used
82
Clock Generator Operation
83
Changing Setting of System Clock and CPU Clock
84
Time Required for Switching between System Clock and CPU Clock
84
Switching between System Clock and CPU Clock
85
Chapter 6 8-Bit Timers 30 and 40
86
Functions of 8-Bit Timers 30 and 40
86
Configuration of 8-Bit Timers 30 and 40
87
Registers Controlling 8-Bit Timers 30 and 40
92
Operation of 8-Bit Timers 30 and 40
96
Operation as 8-Bit Timer Counter
96
Operation as 16-Bit Timer Counter
103
Operation as Carrier Generator
107
Operation as PWM Output (Timer 40 Only)
111
Notes on Using 8-Bit Timers 30 and 40
113
Chapter 7 Watch Timer
114
Watch Timer Functions
114
Watch Timer Configuration
115
Register Controlling Watch Timer
116
Watch Timer Operation
117
Operation as Watch Timer
117
Operation as Interval Timer
117
Chapter 8 Watchdog Timer
119
Watchdog Timer Functions
119
Watchdog Timer Configuration
120
Registers Controlling Watchdog Timer
121
Watchdog Timer Operation
123
Operation as Watchdog Timer
123
Operation as Interval Timer
124
Chapter 9 8-Bit A/D Converter
125
Functions of 8-Bit A/D Converter
125
Configuration of 8-Bit A/D Converter
125
Registers Controlling 8-Bit A/D Converter
128
8-Bit A/D Converter Operation
130
Basic Operation of 8-Bit A/D Converter
130
Input Voltage and Conversion Result
131
Operation Mode of 8-Bit A/D Converter
132
Cautions Related to 8-Bit A/D Converter
133
Chapter 10 Lcd Controller/Driver
137
Functions of LCD Controller/Driver
137
Configuration of LCD Controller/Driver
137
Registers Controlling LCD Controller/Driver
139
Setting LCD Controller/Driver
143
Setting before Starting Display
143
Setting until Disabling Display and Stopping Voltage Boost
143
LCD Display Data Memory
144
Common and Segment Signals
145
Display Modes
147
Four-Time Slot Display Example
147
Supplying LCD Drive Voltages
150
LC0 LC1 , and
150
Chapter 11 Power-On-Clear Circuit
151
Functions of Power-On-Clear Circuit
151
Configuration of Power-On-Clear Circuit
151
Power-On-Clear Circuit Operation
152
Chapter 12 Interrupt Function
153
Interrupt Types
153
Interrupt Sources and Configuration
153
Registers Controlling Interrupt Function
156
Interrupt Servicing Operation
160
Non-Maskable Interrupt Request Acknowledgment Operation
160
Maskable Interrupt Request Acknowledgment Operation
162
Multiple Interrupt Servicing
163
Putting Interrupt Requests on Hold
165
Chapter 13 Standby Function
166
Standby Function and Configuration
166
Standby Function
166
Register Controlling Standby Function
167
Standby Function Operation
168
HALT Mode
168
STOP Mode
171
Chapter 14 Reset Function
174
CHAPTER 15 Μ Μ Μ Μ PD78F9468
178
Flash Memory Characteristics
180
Programming Environment
180
Communication Mode
181
On-Board Pin Processing
183
Connection on Flash Memory Writing Adapter
186
Chapter 16 Mask Option
187
Chapter 17 Instruction Set
188
Operation
188
Operand Identifiers and Description Methods
188
Description of "Operation" Column
189
Description of "Flag" Column
189
Operation List
190
Instructions Listed by Addressing Type
195
Chapter 18 Electrical Specifications (Target)
198
Absolute Maximum Ratings
198
Main System Clock Oscillator Characteristics
199
Subsystem Clock Oscillator Characteristics
200
Basic Operation
203
LCD Characteristics
205
Data Memory STOP Mode Low Supply Voltage Data Retention Characteristics
206
Chapter 19 Package Drawing
208
Chapter 20 Recommended Soldering Conditions
209
Appendix A Development Tools
210
Software Package
212
Language Processing Software
212
Control Software
213
Flash Memory Writing Tools
214
Debugging Tools (Hardware)
214
Debugging Tools (Software)
215
Cautions When Designing Target System
216
Appendix B Register Index
217
Register Index (Alphabetic Order of Register Name)
217
Register Index (Alphabetic Order of Register Symbol)
219

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