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6.2 Keyboard Control
The keyboard control of IT-2000 is compatible with the IBM PC/AT. The keyboard controller
senses if a key has been pressed and sends a MAKE or BREAK code to the main CPU.
Fig. 6.2
System Scanning Code
Each keyboard scanning code generated from the keyboard main unit will be converted to the
keyboard system scanning code through the controller.
MAKE code : Code generated when the corresponding key is pressed.
BREAK code : Code generated when the corresponding key is released.
Primary/Secondary Code
A code generated if an INT09h interrupt occurs will be converted to a primary code and a secondary
code through the BIOS and set in the key buffer. They can be acquired from the application program
by calling INT16h.
Primary code
Basically a character code (refer to the code table on the next page) is assigned to each key,
except that 00h is assigned to function keys (Fn+ 0 to Fn+ 6), which must be recognized together
with a secondary code as a set.
Application Program
Sub-CPU
Function Process
Hardware Interrupt Process
BIOS
Keyboard
System Scanning Code
Primary/Secondary Code
Keyboard
Input Buffer
- IT-2000W 1
- Technical Reference 1
- Table of Contents 2
- Important notices to user 5
- Copyright notice 5
- About MS-DOS 6.22 5
- About MS-Windows 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
- Windows Driver 11
- Utilities 11
- Development Tool Libraries 12
- 1.3 Precautions 13
- 2. Basic Software 16
- 2.1 Overview 16
- 2.1.1 Software Configuration 16
- 2.1.2 Memory Map 17
- 2.1.3 Drive Configuration 18
- 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 27
- Low Voltage Level 28
- Auto Power OFF Function (APO) 32
- DOZE/RUN Transit Function 33
- Replacement of Batteries 34
- Main Battery Recharge 35
- 2.3 Supported Devices 36
- 2.3.1 Display Unit 36
- Software Functions 37
- Hardware Window 37
- Contrast Adjustment 37
- 2.3.2 EL Backlight 38
- 2.3.3 Touch Panel 39
- 2.3.4 Disk 40
- F-ROM Drive 41
- PC Card Drive 41
- 2.3.5 Serial Communication 42
- 2.3.6 PC Card 44
- Card Lock Switch 45
- 2.3.7 Clock Timer 46
- 2.3.8 Buzzer 47
- 2.3.9 Barcode Reader 48
- IrDA 1.0 49
- IrDA 1.1 49
- 2.3.11 Keys 50
- 2.3.12 Sensors 51
- 3. System Menu 52
- 3.2 Basic Operation 53
- 3.3 List of Functions 53
- 3.4 Key Click Sound Setup 54
- 3.5 Buzzer Volume Setup 55
- 3.6 Contrast Adjustment 56
- 3.7 Auto Backlight Setup 57
- 3.8 Auto Power OFF Setup 58
- 3.9 Touch Panel Calibration 59
- 3.10 YMODEM Utility 61
- Operations 63
- 3.11 FLINK Command 65
- Operation 66
- 3.12 System Date/Time Setup 68
- 3.13 Command Prompt 69
- 3.14 RAM Disk Size Change 70
- 3.15 Disk Format 72
- 3.16 System Initialization 74
- 3.17 Password Entry 75
- 4. MS-DOS 76
- 4.1 Overview 76
- Basic Drive 77
- Example of CONFIG.SYS 78
- Example of AUTOEXEC.BAT 80
- 4.3 Card Boot 81
- 5. MS-Windows 84
- 5.1 Overview 84
- 6. Keyboard Controller 87
- 6.1 Overview 87
- 6.2 Keyboard Control 88
- 6.4 Sensor Control 91
- 6.5 Backlight Control 92
- 7. Drivers 95
- 7.1 Overview 95
- 7.2 System Driver 96
- 7.2.1 Function 96
- 7.2.2 Startup Method 96
- 7.3 Clock Control Driver 97
- 7.3.1 Function 97
- 7.3.2 Startup Method 98
- 7.4.1 Function 99
- 7.5 PenMouse Driver 100
- 7.5.1 Overview 100
- 7.5.2 Startup Method 101
- 7.6 Virtual Keyboard Driver 102
- 7.6.1 Function 102
- 7.6.2 Startup Method 103
- 7.7.1 Function 104
- 7.7.2 Operation Method 104
- 7.8 Display Driver 105
- 7.8.1 Function 105
- 7.8.2 Startup Method 105
- 7.9 COM Driver for IrDA 107
- 7.9.1 Overview 107
- BuildCommDCB 110
- ClearCommBreak 111
- CloseComm 112
- EnableCommNotification 113
- EscapeCommFunction 115
- FlushComm 116
- GetCommError 117
- CE_TXFULL 118
- COMSTAT structure 119
- GetCommEventMask 120
- OpenComm 121
- GetCommState 123
- ReadComm 124
- SetCommBreak 125
- SetCommEventMask 126
- SetCommState 128
- DCB structure 129
- TransmitCommChar 132
- UngetCommChar 133
- WriteComm 134
- MaxBaudRate 136
- SizeWindow 136
- SizeData 136
- DisconnectThresholdTime 136
- MaxTurnAroundTime 137
- MinTurnAroundTime 137
- DeviceNickName 137
- DeviceName 138
- DiscoverCount 138
- ServiceType 138
- 7.9.4 Installation Method 139
- 8. Application Development 141
- 8.1 Overview 141
- 8.3 Development Environment 143
- 8.3.3 Simulation Driver 144
- D:>cd windows 149
- D: WINDOWS>WIN aplic 149
- 8.5 Simulation Driver 152
- Overview 153
- Function 153
- Installation method 154
- Monitor window 154
- Note on the simulation: 156
- 8.6 Library 157
- 8.6.2 System Library 158
- List of Libraries 159
- Acquisition of BIOS Version 160
- Switching Over COM2 Channel 164
- Reboot Request 166
- Setting ABO Time 167
- Acquisition of ABO Time 168
- Backlight ON/OFF 172
- Setting Buzzer Volume 174
- Acquisition of Buzzer Volume 175
- Device Power ON/OFF 177
- Software Card Lock 178
- Key Click Sound ON/OFF 180
- Acquisition of Reboot Reason 182
- Acquisition of OFF Reason 183
- Setting APO Time 188
- Acquisition of APO Time 189
- Setting Status of Alarm 190
- Acquisition of Alarm Setting 191
- Resetting Alarm 192
- Setting Key Click Sound ON 195
- Keypad Library 196
- Input acceptance mode 197
- Toggle function 197
- Repeat function 197
- Key click sound 197
- Fig. 8.22 203
- Fig. 8.21 203
- Explanation 208
- Key acceptance property 208
- Expansion key number property 209
- Expansion keycode property 210
- Expansion key image property 210
- <In case of VC> 211
- <In case of VB> 211
- 8.6.4 OBR Library 213
- Reception Buffer 214
- Data Format 215
- List of Available Functions 216
- Initialization of OBR 216
- Release of COM Port 217
- Transmission of Command 218
- Readout of Received Data 220
- Invalidating Code in Buffer 221
- #include “obrlib.h” 222
- Writing Set Values to EEPROM 224
- Command List 229
- 8.6.5 YMODEM Library 233
- Error codes 234
- OpenYMODEM 234
- SendByYMODEM 235
- RecieveByYMODEM 236
- SetCommForYMODEM 237
- CloseYMODEM 238
- 8.6.6 FLINK Library 239
- Interface to DLL 240
- /* Code in C++ */ 241
- File deletion 243
- File move 243
- Communication Commands 244
- File Transmission (/S) 244
- File Reception (/R) 246
- File Append (/A) 248
- File Deletion (/D) 249
- File Move/File Rename (/N) 250
- Idle Start 251
- Wait Time Setup (/L) 252
- COM Environment Setup (/Y) 253
- List of termination codes 255
- 9. Utility 257
- 9.1 Overview 257
- 9.2 Calculator Utility 258
- Startup Method 259
- Basic Function 259
- .3 Clock Utility 260
- Setup File 261
- 9.4 Calendar Utility 262
- 9.6 FLINK Utility 264
- Command Specification Method 265
- IrDA communication speed 265
- Example of specification 266
- 9.6.2 File Transmission (/S) 267
- Example of specifications 268
- 9.6.3 File Reception (/R) 269
- 9.6.4 File Append (/A) 271
- 9.6.5 File Deletion (/D) 272
- 9.6.6 File Move/Rename (/N) 273
- 9.6.7 Idle Start 274
- Category 275
- BREAK KEY INTERRUPT ENDING 275
- 9.7 XY Utility 277
- Function and operation method 278
- Other parameters 280
- File name 280
- 9.8 Reverse Video Utility 282
- 9.9 COM2KEY Utility 283
- Start Option 284
- Operation at Menu Startup 285
- WINST.INF 286
- Keyboard=Setting 287
- Example of Using WINST.EXE 288
- APPENDIX A: TFORMAT.EXE 291
- APPENDIX B: PC Card Driver 292
- SRAM Card Driver (MTSRAM.EXE) 293
- IDE/ATA Support (ATADRV.EXE) 293
- APPENDIX C: 295
- Acquisition of Power Status 296
- End of the Manual 297
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