Epson 88862 Manuals

Manuals and User Guides for Epson 88862. We have 1 Epson 88862 manual available for free PDF download: Technical Manual

Epson 88862 Technical Manual

Epson 88862 Technical Manual (159 pages)

CMOS 8-BIT SINGLE CHIP MICROCOMPUTER

Brand: Epson | Category: Computer Hardware | Size: 1.04 MB

Table of Contents

Table of Contents
3
1 Introduction

7
- Configuration
  7
- Features
  8
- Block Diagram
  9
- Pin Layout Diagram
  10
- Mask Option
  14
2 Power Supply

17
- Operating Voltage
  17
- Internal Power Supply Circuit
  17
- Heavy Load Protection Mode
  18
3 Cpu and Memory Configuration

19
- Cpu
  19
- Internal Memory
  19
  - Rom
    19
  - Ram
    19
  - I/O Memory
    19
  - Display Memory
    19
- Exception Processing Vectors
  19
- CC (Customized Condition Flag)
  20
4 Initial Reset

21
- Initial Reset Factors
  21
- Initial Settings after Initial Reset
  23
5 Peripheral Circuits and Their Operation

24
- I/O Memory Map
  24
- Watchdog Timer
  33
  - Configuration of Watchdog Timer
    33
  - Interrupt Function
    33
  - Control of Watchdog Timer
    33
  - Programming Notes
    33
- Oscillation Circuits and Operating Mode
  34
  - Configuration of Oscillation Circuits
    34
  - Mask Option
    34
  - OSC1 Oscillation Circuit
    34
  - OSC3 Oscillation Circuit
    35
  - Operating Mode
    35
  - Switching the CPU Clocks
    36
  - Control of Oscillation Circuit and Operating Mode
    37
  - Programming Notes
    38
- Input Ports (K Ports)
  39
- Control of Input Ports
  42
- Programming Note
  44
- Output Ports (R Ports)
  45
  - Configuration of Output Ports
    45
  - Mask Option
    45
  - High Impedance Control
    45
  - DC Output
    45
  - Special Output
    45
  - Control of Output Ports
    48
  - Programming Notes
    51
- I/O Ports (P Ports)
  52
  - Configuration of I/O Ports
    52
  - Mask Option
    52
  - I/O Control Registers and I/O Mode
    52
  - Control of I/O Ports
    53
  - Programming Note
    53
- Serial Interface
  54
  - Configuration of Serial Interface
    54
  - Mask Option
    55
  - Transfer Modes
    55
  - Clock Source
    56
  - Transmit-Receive Control
    57
  - Operation of Clock Synchronous Transfer
    58
  - Operation of Asynchronous Transfer
    62
  - Interrupt Function
    66
  - Control of Serial Interface
    68
  - Programming Notes
    72
- Clock Timer
  73
  - Configuration of Clock Timer
    73
  - Interrupt Function
    73
  - Control of Clock Timer
    75
  - Programming Notes
    77
- Stopwatch Timer
  78
  - Configuration of Stopwatch Timer
    78
  - Count up Pattern
    78
  - Interrupt Function
    79
  - Control of Stopwatch Timer
    80
  - Programming Notes
    82
- Programmable Timer
  83
  - Configuration of Programmable Timer
    83
  - Count Operation and Setting Basic Mode
    83
  - Setting of Input Clock
    85
  - Timer Mode
    85
  - Event Counter Mode
    86
  - Pulse Width Measurement Timer Mode
    86
  - Interrupt Function
    87
  - Setting of TOUT Output
    87
  - Transmission Rate Setting of Serial Interface
    88
  - Control of Programmable Timer
    89
  - Programming Notes
    94
- LCD Controller
  95
  - Configuration of LCD Controller
    95
  - Mask Option
    95
  - LCD Power Supply
    96
  - LCD Driver
    96
  - Display Memory
    99
    
    Display Control
    106
    
    Control of LCD Controller
    107
    
    Programming Note
    108
  - Sound Generator
    109
    
    Configuration of Sound Generator
    109
    
    Control of Buzzer Output
    109
    
    Setting of Buzzer Frequency and Sound Level
    110
    
    Digital Envelope
    111
    
    One-Shot Output
    111
    
    Control of Sound Generator
    112
    
    Programming Notes
    114
  - Supply Voltage Detection (SVD) Circuit
    115
    
    Configuration of SVD Circuit
    115
    
    Operation of SVD Circuit
    115
    
    Control of SVD Circuit
    117
    
    Programming Notes
    118
  - Interrupt and Standby Status
    119
    
    Interrupt Generation Conditions
    120
    
    Interrupt Factor Flag
    120
    
    Interrupt Enable Register
    121
    
    Interrupt Priority Register and Interrupt Priority Level
    121
    
    Exception Processing Vectors
    122
    
    Control of Interrupt
    123
    
    Programming Notes
    124
  - Notes for Low Current Consumption
    125
6 Basic External Wiring Diagram

126
7 Electrical Characteristics

128
- Absolute Maximum Rating
  128
- Recommended Operating Conditions
  128
- DC Characteristics
  129
- Analog Circuit Characteristics
  130
- Power Current Consumption
  133
- AC Characteristics
  134
- Input Clock
  137
- Oscillation Characteristics
  140
- Characteristics Curves (Reference Value)
  141
8 Package

148
- Plastic Package
  148
- Ceramic Package
  150
9 Pad Layout

151
- Diagram of Pad Layout
  151
- Pad Coordinates
  153
10 Precautions on Mounting

155

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