Contents
7.6 Display Timing Circuit....................................................................................... 21
7.6.1 Signal Generation for the Display Line Counter and
the Display Data Latching Circuit......................................................................21
7.6.2 Generation of the Alternate Signal M (Internal) and
the Synchronous Signal FLM (Internal).............................................................21
7.6.3 Display Data Latching Circuit............................................................................21
7.7 LCD Driver Output Timing ................................................................................ 22
7.7.1 LCD Drive Circuit...............................................................................................22
7.7.2 Oscillator Circuit ................................................................................................22
7.8 Power Supply Circuit........................................................................................ 23
7.9 Booster Circuit.................................................................................................. 23
7.10 Electronic Volume............................................................................................. 24
7.11 Voltage Regulator............................................................................................. 25
7.12 Voltage Generation Circuit ............................................................................... 25
7.13 EEPROM Function........................................................................................... 27
7.13.1 EEPROM Program, Read, and Erase Flow Charts ..........................................28
7.13.2 Vop Calibration Offset Examples ......................................................................30
7.14 Partial Display Function.................................................................................... 33
7.15 Discharge Circuit.............................................................................................. 34
7.16 Scroll Function.................................................................................................. 34
7.17 Initial Values ..................................................................................................... 37
7.18 Safety Measures when Switching Power ON and OFF.................................... 37
7.18.1 When Using the External Power Supply............................................................37
7.18.2 When Using the Built-in Power Supply ..............................................................38
7.18.3 Power Supply Rising Time.................................................................................38
7.19 Register Setting Examples............................................................................... 39
7.19.1 Initialization ........................................................................................................39
7.19.2 Display Data.......................................................................................................40
7.19.3 Power OFF.........................................................................................................40
8
Control Register ..........................................................................................41
8.1 Control Registers.............................................................................................. 41
8.1.1 Control Register (Bank 0)..................................................................................41
8.1.2 Control Register (Bank 1)..................................................................................42
8.1.3 Control Register (Bank 2)..................................................................................43
8.2 Functions of the Control Registers................................................................... 44
8.2.1 X Address Register (AX) ...................................................................................44
8.2.2 Y Address Register (AY)....................................................................................44
8.2.3 n Line Alternated Register (N)...........................................................................45
8.2.4 Display Control Display (1) Register .................................................................46
8.2.5 Display Control (2) Register..............................................................................46
8.2.6 Increment Control Register Set.........................................................................47
8.2.7 Power Control Register.....................................................................................50
8.2.8 LCD Duty (DS) ..................................................................................................51
8.2.9 Booster Setup (VU)...........................................................................................52
Product Specification (V0.4) 08.15.2005
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ELAN [ ELAN MICROELECTRONICS CORP ]
