SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE

MODEL NO: 19264-05

PACIFIC DISPLAY DEVICES

06.27.2003

13

■ Display Control Instruction

The display control instructions control the internal state of the KS0108B. Instruction is received form MPU to

KS0108B for the display control. The following table shows various instructions.

Instruction

RS

R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Function

Display ON/OFF

0

0

0

0

1

1

1

1

1

0/1 Controls the display on or off.

Internal status and display RAM

data are not affected.

0:OFF, 1:ON

Set Address

0

0

0

1

Y address (0

∼63)

Sets the Y address in the Y

address counter.

Set Page

(X address)

0

0

1

0

1

1

1

Page

(0

∼7)

Sets the X address at the X

address register.

Display Start Line

0

0

1

1

Display start line

(0

∼63)

Indicates the display data RAM

displayed at the top of the screen.

Status Read

0

1

B

U

S

Y

0

O

N

/

O

F

F

R

E

S

E

T

0

0

0

0

Read status.

BUSY

ON/OFF

RESET

0

1

0

1

0

1

: Ready

: In operation

: Display ON

: Display OFF

: Normal

: Reset

Write Display Data

1

0

Write Data

Writes data (DB0:7) into display

data

RAM.

After

writing

instruction, Y address is increased

by 1 automatically.

Read Display Data

1

1

Read Data

Reads data (DB0:7) from display

data RAM to the data bus.