Casio IT-2000D User Manual Page 87
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5. Keyboard Controller
5.1 Overview
This terminal is equipped with a sub-CPU dedicated to controlling the keyboard, touch panel,
backlight, and various sensors. This chapter describes major tasks assigned to this sub-CPU.
Fig. 5.1
Main CPU Sub-CPU
Temperature Sensor
Illumination Sensor
Battery Voltage
Sensor
Buzzer
Volume
El BacklightLCD Brightness
Keyboard
Touch Panel
Command
Data
- IT-2000D 1
- Technical Reference 1
- Table of Contents 2
- Important notices to user 5
- Copyright notice 5
- About MS-DOS 6.22 5
- About trademarks 5
- 1. Overview 6
- 1.1 Features of System 6
- 1.1.1 Development Concept 6
- 1.1.2 Hardware 6
- 1.1.3 Software 6
- 1.1.4 Basic Specifications 7
- 1.1.5 Model Name 8
- 1.2 System Configuration 9
- 1.2.1 Hardware Block Diagram 9
- 1.2.2 Supported Software 10
- Utilities 11
- Development Tool Libraries 11
- 1.3 Precautions 12
- 2. Basic Software 15
- 2.1 Overview 15
- 2.1.1 Software Configuration 15
- 2.1.2 Memory Map 16
- 2.1.3 Drive Configuration 17
- 2.2 Basic System Operation 19
- 2.2.1 Overview 19
- 2.2.2 Power ON Process 21
- Application Boot Process 22
- System Menu Boot Process 22
- Resume Process 23
- ON Factors 23
- 2.2.3 Power OFF Process 25
- OFF Factors 26
- Battery Operation Scheme 28
- Low Voltage Level 29
- Auto Power OFF Function (APO) 34
- DOZE/RUN Transit Function 35
- Replacement of Batteries 37
- Main Battery Recharge 38
- 2.3 Supported Devices 39
- 2.3.1 Display Unit 39
- Software Functions 40
- Hardware Window 40
- Contrast Adjustment 40
- 2.3.2 EL Backlight 41
- 2.3.3 Touch Panel 42
- 2.3.4 Disk 43
- F-ROM Drive 44
- PC Card Drive 44
- 2.3.5 Serial Communication 45
- 2.3.6 PC Card 47
- Card Lock Switch 48
- 2.3.7 Clock Timer 49
- 2.3.8 Buzzer 50
- 2.3.9 Barcode Reader 51
- IrDA 1.0 52
- IrDA 1.1 52
- 2.3.11 Keys 53
- 2.3.12 Sensors 54
- 3. System Menu 55
- 3.2 Basic Operation 56
- 3.3 List of Functions 56
- 3.4 Key Click Sound Setup 57
- 3.5 Buzzer Volume Setup 58
- 3.6 Contrast Adjustment 59
- 3.7 Auto Backlight Setup 60
- 3.8 Auto Power OFF Setup 61
- 3.9 Touch Panel Calibration 62
- 3.10 YMODEM Utility 64
- Operations 66
- 3.11 FLINK Command 68
- Operation 69
- 3.12 System Date/Time Setup 71
- 3.13 Command Prompt 72
- 3.14 RAM Disk Size Change 73
- Others Invalid 74
- 3.15 Disk Format 75
- 3.16 System Initialization 77
- 3.17 Password Entry 78
- 4. MS-DOS 79
- 4.1 Overview 79
- Basic Drive 80
- Example of CONFIG.SYS 81
- Example of AUTOEXEC.BAT 83
- 4.3 Card Boot 84
- 5. Keyboard Controller 87
- 5.1 Overview 87
- 5.2 Keyboard Control 88
- 5.4 Sensor Control 91
- 5.5 Backlight Control 92
- 6. Drivers 95
- 6.1 Overview 95
- 6.2 System Driver 96
- 6.2.1 Function 96
- 6.2.2 Startup Method 96
- 6.3 Clock Control Driver 97
- 6.3.1 Function 97
- 6.3.2 Startup Method 98
- 6.4.1 Function 99
- 6.4.2 Startup Method 100
- 6.5 PenMouse Driver 101
- 6.5.1 Overview 101
- 6.5.2 Startup Method 102
- 7. Application Development 110
- 7.1 Overview 110
- 7.3 Development Environment 112
- 7.3.3 Simulation Driver 113
- D:>debug aplic.exe 120
- 7.5 Simulation Driver 122
- Overview 123
- Function 123
- Startup Method 124
- Operating Conditions 125
- About the Key Input 127
- About Coordinate Input 127
- Displaying Simulated Keypad 128
- About Hexadecimal Code Input 129
- 7.6 Library 130
- 7.6.2 System Library 131
- List of Libraries 132
- Acquisition of BIOS Version 132
- Switching Over COM2 Channel 135
- Reboot Request 136
- Setting ABO Time 137
- Acquisition of ABO Time 137
- Backlight ON/OFF 140
- Setting Buzzer Volume 141
- Acquisition of Buzzer Volume 141
- Device Power ON/OFF 142
- Software Card Lock 143
- Key Click Sound ON/OFF 144
- Acquisition of Reboot Reason 145
- Acquisition of Reason for OFF 145
- Setting APO Time 147
- Acquisition of APO Time 148
- Setting Status of Alarm 148
- Acquisition of Alarm Setting 149
- Resetting Alarm 150
- Setting Key Click Sound ON 152
- Keypad Library 153
- Keypad Driver 154
- Transition of Keypad State 154
- Acceptance timing of keycode 155
- Acquisition of coordinates 156
- Coordinate status 156
- Resume-On process 156
- Input acceptance mode 157
- Toggle function 157
- Repeat function 157
- Key click sound 157
- Clearing the buffer 158
- Registering an expanded key 158
- List of Input Functions 160
- Readout from Key Buffer 161
- Checking Key Buffer Content 162
- Key Buffer Clear 163
- Setting Input Acceptance Mode 164
- Registering Enhanced Keypad 166
- Deleting Enhanced Keys 169
- OBR Library 170
- Reception Buffer 171
- DT-9650BCR 172
- Initialization of OBR 173
- Release of COM Port 173
- Transmission of Command 174
- Readout of Received Data 175
- Invalidating Code in Buffer 175
- Writing Set Values to EEPROM 177
- DT-9656BCR 181
- List of Functions 182
- Command List 186
- 8. Utility 190
- 8.1 Overview 190
- 8.2 Calculator Utility 191
- Condition of Operation 192
- Basic Function 192
- 8.3 Clock Utility 193
- 8.4 Calendar Utility 195
- 8.5 FLINK Utility 196
- Command Specification Method 197
- IrDA communication speed 197
- Example of specification 198
- 8.5.2 File Transmission (/S) 199
- Example of specifications 200
- 8.5.3 File Reception (/R) 201
- 8.5.4 File Append (/A) 203
- 8.5.5 File Deletion (/D) 204
- 8.5.6 File Move/Rename (/N) 205
- 8.5.7 Idle Start 206
- Category 207
- BREAK KEY INTERRUPT ENDING 207
- 8.6 XY Utility 209
- Function and operation method 210
- Other parameters 211
- File name 212
- 8.8 Reverse Video Utility 216
- 8.9 COM2KEY Utility 217
- APPENDIX A TFORMAT.EXE 218
- APPENDIX B PC Card Driver 219
- SRAM Card Driver (MTSRAM.EXE) 220
- IDE/ATA Support (ATADRV.EXE) 220
- APPENDIX C 222
- Acquisition of Power Status 223
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