Trademark Acknowledgments:

IBM is a registered trademark and PS/2 is a trademark of IBM.

Windows is a trademark of Microsoft Corporation.
ELAN and ELAN logo

are trademarks of ELAN Microelectronics Corporation.

Printed in Taiwan

The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes
no responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN
Microelectronics makes no commitment to update, or to keep current the information and material contained in
this specification. Such information and material may change to conform to each confirmed order.

In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or
other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall not
be liable for direct, indirect, special incidental, or consequential damages arising from the use of such information
or material.

The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and
may be used or copied only in accordance with the terms of such agreement.

ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of
ELAN Microelectronics product in such applications is not supported and is prohibited.
NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY
ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN MICROELECTRONICS.

ELAN MICROELECTRONICS CORPORATION

Headquarters:

No. 12, Innovation Road 1
Hsinchu Science Park
Hsinchu, Taiwan 30077
Tel: +886 3 563-9977
Fax: +886 3 563-9966

http://www.emc.com.tw

Hong Kong:
Elan (HK) Microelectronics
Corporation, Ltd.

Rm. 1005B, 10/F Empire Centre
68 Mody Road, Tsimshatsui
Kowloon , HONG KONG
Tel: +852 2723-3376
Fax: +852 2723-7780

elanhk@emc.com.hk

USA:
Elan Information
Technology Group

1821 Saratoga Ave., Suite 250
Saratoga, CA 95070
USA
Tel: +1 408 366-8223
Fax: +1 408 366-8220

Europe:
Elan Microelectronics Corp.
(Europe)

Siewerdtstrasse 105
8050 Zurich, SWITZERLAND
Tel: +41 43 299-4060
Fax: +41 43 299-4079

http://www.elan-europe.com

Shenzhen:
Elan Microelectronics
Shenzhen, Ltd.

SSMEC Bldg., 3F, Gaoxin S. Ave.
Shenzhen Hi-Tech Industrial Park
Shenzhen, Guandong, CHINA
Tel: +86 755 2601-0565
Fax: +86 755 2601-0500

Shanghai:
Elan Microelectronics
Shanghai Corporation, Ltd.

23/Bldg. #115 Lane 572, Bibo Road
Zhangjiang Hi-Tech Park
Shanghai, CHINA
Tel: +86 021 5080-3866
Fax: +86 021 5080-4600

Contents

Product Specification (V1.0) 09.05.2005

iii

Contents

1 General

Description ........................................................................................1

2 Feature..............................................................................................................1
3 Applications .....................................................................................................2
4 Pin

Configurations ..........................................................................................2

4.1 Alignment

Key...................................................................................................... 3

4.2 Pin

Dimensions .................................................................................................... 3

4.3 Recommended Cog Ito Traces Resistor ............................................................. 4
4.4 PAD

Coordinates

Table........................................................................................ 5

5 Functional

Block

Diagram ............................................................................12

6 Pin

Descriptions ............................................................................................13

6.1 Power

Supply

Pins............................................................................................. 13

6.2 LCD Power Supply Circuit Pins ......................................................................... 13
6.3 System Bus Pins................................................................................................ 14
6.4 LCD Drive Circuit Signals .................................................................................. 15
6.5 Oscillating Circuit Pin......................................................................................... 16

7 Function

Description ....................................................................................16

7.1 MPU

Interface .................................................................................................... 16

7.1.1 Reset Pin Description (RESB).........................................................................16
7.1.2 Selection of Interface Type ..............................................................................16
7.1.3 Parallel

Input ...................................................................................................17

7.1.4 Read/Write Functions of Register and Display RAM .......................................17
7.1.5 Serial

Interface ................................................................................................17

7.1.5.1 4-Wire

Type

Serial

Interface .............................................................17

7.1.5.2 3-Wire

Type

Serial

Interface .............................................................18

7.2 Writing Data to Display RAM and Control Register........................................... 19

7.2.1 Writing Data Operation ....................................................................................19

7.3 Internal Display RAM and Register Read ......................................................... 19

7.3.1 Read Display RAM Operation .........................................................................19
7.3.2 Register Read Operation.................................................................................20

7.4 16-Bit Data Access to Display RAM .................................................................. 20
7.5 Fast Burst RAM Write Function ......................................................................... 21
7.6 Display RAM Access Using the Windows Function .......................................... 22
7.7 Display RAM Data and LCD .............................................................................. 22
7.8 Correlation between Display RAM and Address ............................................... 23

7.8.1 Gradation Mode (65K Colors), (C256=0, 65K=1) ............................................23
7.8.2 Gradation Mode (4096 Colors), (C256=0, 65K=0)...........................................24
7.8.3 Gradation Mode (256 Colors), (C256=1, 65K=0).............................................25
7.8.4 Data Read and Write Bit Assignment ..............................................................26

Contents

Product Specification (V1.0) 09.05.2005

7.9 Display Data Structure and Gradation Control .................................................. 26

7.9.1 Gradation Mode (65K Color) ...........................................................................27

7.9.1.1 8-Bit

Mode ........................................................................................27

7.9.1.2 16-Bit

Mode ......................................................................................28

7.9.2 Gradation Mode (4096 Color)..........................................................................29

7.9.2.1 8-Bit

Mode ........................................................................................29

7.9.2.2 16-Bit

Mode ......................................................................................30

7.9.3 Gradation Mode (256 Color)............................................................................31

7.9.3.1 8-Bit

Mode ........................................................................................31

7.9.3.2 16-Bit

Mode

(WLS=1) .......................................................................32

7.10 Gradation LSB Control...................................................................................... 33
7.11 Display Timing Circuit ........................................................................................ 33

7.11.1 Signal Generation to Display Line Counter and

Data Latching Circuit .......................................................................................34

7.11.2 Generation of the Alternated Signal (internal M) and

the Synchronous Signal (internal FLM) ...........................................................34

7.11.3 Display Data Latching Circuit ..........................................................................34

7.12 Output Timing of LCD Driver ............................................................................. 35
7.13 LCD Drive Circuit ............................................................................................... 36
7.14 Oscillator Circuit................................................................................................. 36
7.15 Power Supply Circuit ......................................................................................... 36
7.16 Booster Circuit ................................................................................................... 36
7.17 Electronic Volume .............................................................................................. 37
7.18 Voltage Regulator .............................................................................................. 37
7.19 Voltage Generation Circuit................................................................................. 38
7.20 EEPROM Function............................................................................................. 40

7.20.1 EEPROM Program, Read, and Erase Flow Charts..........................................41
7.20.2 Vop Calibration Offset Examples.....................................................................43

7.21 Partial Display Function ..................................................................................... 46
7.22 Discharge Circuit................................................................................................ 47
7.23 Scroll Function ................................................................................................... 47

7.23.1 Settings Scrolling Data Area in RAM ...............................................................50

7.24 Initialization ........................................................................................................ 51
7.25 Safety Measures when Switching Power ON and OFF .................................... 52

7.25.1 When Using the External Power Supply ..........................................................52
7.25.2 When Using the Built-in Power Supply ............................................................52
7.25.3 Power Supply Rising Time...............................................................................53

7.26 Example of Setting Registers ............................................................................ 53

7.26.1 Initialization......................................................................................................53
7.26.2 Display Data ....................................................................................................54
7.26.3 Power OFF ......................................................................................................54

Contents

Product Specification (V1.0) 09.05.2005

8 Control

Registers ..........................................................................................55

8.1 Control

8.1.1 Control Register Table (Bank 0) ......................................................................55
8.1.2 Control Register Table (Bank 1) ......................................................................56
8.1.3 Control Register Table (Bank 4) ......................................................................57
8.1.4 Control Register Table (Bank 5) ......................................................................58

8.2 Functions of Control Registers .......................................................................... 58

8.2.1 X Address Register (AX) .................................................................................59
8.2.2 Y Address Register (AY)..................................................................................59
8.2.3 n Line Alternate Register (N) ...........................................................................60
8.2.4 Display Control (1) Register ............................................................................61
8.2.5 Display Control (2) Register ............................................................................62
8.2.6 Increment Control Register Set .......................................................................62
8.2.7 Power Control Register ...................................................................................64
8.2.8 LCD Duty (DS) ................................................................................................65
8.2.9 Booster

Setup

(VU) .........................................................................................66

8.2.10 Bias Sett ing Register (B) ................................................................................66
8.2.11 Register Access Control...................................................................................67
8.2.12 Display Start Common .....................................................................................67
8.2.13 Temperature Compensation Set ......................................................................68
8.2.14 RAM Data Length Set......................................................................................69
8.2.15 RAM Data Writing Select Control.....................................................................69
8.2.16 Electronic Volume Register..............................................................................71
8.2.17 Internal Register Read Address.......................................................................72
8.2.18 Resistance Ratio of CR Oscillator....................................................................72
8.2.19 Extended Power Control..................................................................................73
8.2.20 Window End X Address ...................................................................................73
8.2.21 Window End Y Address ...................................................................................73
8.2.22 Regulator Multiple Ratio Control ......................................................................74
8.2.23 Line Reverse Start Address .............................................................................74
8.2.24 Line Reverse End Address ..............................................................................74
8.2.25 Line Reverse Control.......................................................................................75
8.2.26 EEPROM Mode Select Register ......................................................................76
8.2.27 Vop Calibration Offset Register........................................................................76
8.2.28 EEPROM Address Select Register..................................................................77
8.2.29 Scroll Top Address...........................................................................................78
8.2.30 Scroll Bottom Address .....................................................................................78
8.2.31 Scroll Specified Address ..................................................................................78
8.2.32 Scroll Start Address .........................................................................................79
8.2.33 Scroll Mode Select...........................................................................................79

9 Absolute

Maximum

Rating ...........................................................................80

9.1 Absolute

Maximum

Ratings............................................................................... 80

9.2 Recommended Operating Conditions ............................................................... 80

10 DC Electrical Characteristics .......................................................................81

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