KS0072 查看數據表（PDF） - Samsung

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产品描述 (功能)

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KS0072

DOT MATRIX LCD CONTROLLER & DRIVER

Samsung 

KS0072

PRELIMINARY SPECIFICATION

DOT MATRIX LCD CONTROLLER & DRIVER

Contents

1) Test Mode

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Code 0 0 0 0 0 0 0 0 0 0

After setting the DL bit to 4-bit data interface mode (DL=0), writing this code twice makes the system go to test

mode. And when 8-bit interface mode (DL=1) is set, normal function mode is returned.

System is unaffected if this code is set in 8-bit interface, other than consuming some time. (37 µs at

fosc=270KHz)

2) Clear Display

Code

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0000000001

Clear all the display data by writing “20H” (space code of CGROM) to all DDRAM address, and set DDRAM

address to “00H” into AC (Address Counter). For this instruction, the CGROM address “20H” has to be set to

space code. Shifting of the display position returns it to the original position. Namely, when display

data is disappeared and cursor or blinking is displayed, bring the cursor to the left edge on first line of the

display. It makes entry mode to increment (I/D=1)

3) Return Home

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Code 0 0 0 0 0 0 0 0 1 *

“*” : Don’t care

Set DDRAM address to “00H” into the address counter. Shifting of the display position returns it to the original

position. When cursor or blinking is displayed, bring the cursor to the left edge on first line of the

display. The data in DDRAM does not change.

4) Entry Mode Set

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Code 0 0 0 0 0 0 0 1 I/D S

Set the moving direction of cursor and display.

I/D : Increment/decrement of DDRAM/CGRAM address (cursor or blink)

When I/D=“High”, cursor/blink moves to right and DDRAM address is increased by 1.

When I/D=“Low”, cursor/blink moves to left and DDRAM address is decresed by 1.

S : Shift of entire display

When DDRAM read (CGRAM read/write)operation or S= “Low”, entire display is not shift.

If S=“High”, and DDRAM write operation, entire display is sifted according to I/D value

(I/D=“1” : shift left, I/D=“0” : shift right).

LDI-97-D001

13

97-10-23

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