NJU6635CH 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJU6635CH

16-CHARACTER 2-LINE DOT MATRIX LCD CONTROLLER DRIVER

Japan Radio Corporation  

NJU6635

d) 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

Entry mode set instruction which sets cursor moving direction and display shift On/Off, is

executed when the code “1” is written into DB2 and the codes of (I/D) and (S) are written into DB1

(I/D) and DB0 (S) as shown below.

(I/D) sets the address increment or decrement, and the (S) sets the entire display shift in the DD

RAM writing.

I/D

FUNCTION

0

Address increment : The address of the DD RAM increment ( +1) when

the read/write, and the cursor or blink moves to the right.

1

Address decrement : The address of the DD or CG RAM decrement

( -1) when the read/write, and the cursor or blink move to the left.

S

FUNCTION

1

Entire display shift.

The shift direction is determined by I/D: shift to the left at I/D=1 and shift

to the right at the I/D=0. The shift is operated with only the character, so

that it looks as if the cursor stands still and the display moves. The

display does not shift when reading from the DD RAM and

writing/reading into/from CG RAM.

0

The display does not shifting

e) Display ON/OFF Control

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

Code 0 0 0 0 0 0 1 D C B

Display On/Off control instruction which controls the display On/Off, the cursor On/Off and the

cursor position character blink, is executed when the code “1” is written into DB3 and the codes of

(D), (C) and (B) are written into DB2(D), DB1(C) and DB0(B) as shown below.

D

FUNCTION

1

Display On.

0

Display Off. In this mode, the display data remains in the DD RAM so

that it is retrieved immediately on the display when the D change to 1.

C

FUNCTION

1

Cursor On. The cursor is displayed by 5 dots on the 8th line.

0

Cursor Off. Even if the display data write, the I/D etc does not change.

B

FUNCTION

1

The cursor position character is blinking. Blinking rate is 303.4ms at

fOSC=540kHz. The blink is displayed alternatively with all on (it means

all black) and characters display. The cursor and the blink can be

displayed simultaneously.

0

The character does not blink.

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