4

CONTENTS

1.

PIN FUNCTIONS .................................................................................................................................... 6

1.1

Power System............................................................................................................................................... 6

1.2

Logic System................................................................................................................................................ 6

1.3

Driver System ............................................................................................................................................... 8

2.

VOLTAGE CONTROL CIRCUIT ............................................................................................................ 8

3.

LCD DISPLAY ........................................................................................................................................ 9

4.

GROUP ADDRESSES.......................................................................................................................... 10

4.1

Dot Display ................................................................................................................................................. 10

4.2

Pictographic Display.................................................................................................................................. 11

4.3

Blink Data.................................................................................................................................................... 12

5.

COMMAND ........................................................................................................................................... 13

5.1

Basic Form.................................................................................................................................................. 13

5.2

Chip Address Register (CAR) ................................................................................................................... 13

5.3

Command Register .................................................................................................................................... 14

5.3.1

Reset ............................................................................................................................................... 14

5.3.2

Display ON/OFF .............................................................................................................................. 14

5.3.3

Standby ........................................................................................................................................... 14

5.3.4

Duty setting...................................................................................................................................... 15

5.3.5

Master/slave setting......................................................................................................................... 15

5.3.6

Blink setting ..................................................................................................................................... 15

5.3.7

Data R/W mode ............................................................................................................................... 16

5.3.8

Test mode........................................................................................................................................ 16

5.3.9

D/A converter setting ....................................................................................................................... 16

5.4

Address Register ....................................................................................................................................... 17

6.

RESETTING.......................................................................................................................................... 18

7.

COMMUNICATION FORMAT .............................................................................................................. 19

7.1

Serial ........................................................................................................................................................... 19

7.1.1

Reception 1 (Command/data write: 1 byte) ..................................................................................... 19

7.1.2

Reception 2 (Command/data write: 2 bytes or more) ...................................................................... 19

7.1.3

Transmission (Command/data read) ............................................................................................... 19

7.2

Parallel ........................................................................................................................................................ 20

7.2.1

8-bit parallel interface ...................................................................................................................... 20

7.2.2

4-bit parallel interface ...................................................................................................................... 20

8.

CPU ACCESS EXAMPLES .................................................................................................................. 21

8.1

Initialize and Data Write............................................................................................................................. 21

8.2

Change Display Data and Pictographic Data (All Data are Changed) ................................................... 23

8.3

Read Display Data and Pictograph Data .................................................................................................. 24

8.4

Blink Data Setting ...................................................................................................................................... 25

9.

ELECTRICAL CHARACTERISTICS ....................................................................................................26