S6B0755 Datasheet, PDF (52/68 Pages) Samsung semiconductor – 128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD

S6B0755
PRELIMINARY SPEC. VER. 1.0
128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
Set Data Direction & Display Data Length (3-Pin SPI Mode)
Consists of two bytes instruction.
This command is used in 3-Pin SPI mode only(PS0 = ”L” and PS1 = ”L”). It will be two continuous commands,
the first byte control the data direction(write mode only) and inform the LCD driver the second byte will be
number of data bytes will be write. When RS is not used, the Display Data Length instruction is used to
indicate that a specified number of display data bytes are to be transmitted. The next byte after the display
data string is handled as command data.
The 1^st Instruction: Set Data Direction (Only Write Mode)
RS
RW
DB7
DB6
DB5
DB4
x
x
1
1
1
0
DB3
1
DB2
0
DB1
0
DB0
0
The 2^nd Instruction: Set Display Data Length (DDL) Register
RS
RW
DB7
DB6
DB5
DB4
x
x
D7
D6
D5
D4
DB3
D3
DB2
D2
DB1
D1
DB0
D0
D7
D6
D5
D4
D3
D2
D1
D0
Display Data
Length
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
2
0
0
0
0
0
0
1
0
3
:
:
:
:
:
:
:
:
:
1
1
1
1
1
1
0
1
254
1
1
1
1
1
1
1
0
255
1
1
1
1
1
1
1
1
256
Oscillator ON Start
This instruction enables the built-in oscillator circuit.
RS
RW
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
0
1
0
1
0
1
0
1
1
Reset
This instruction resets initial display line, column address, page address, and common output status select to
their initial status, but dose not affect the contents of display data RAM. This instruction cannot initialize the
LCD power supply, which is initialized by the RESETB pin.
RS
RW
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
0
1
1
1
0
0
0
1
0
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