S6B1741 查看數據表（PDF） - Samsung

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S6B1741

128 SEG / 129 COM DRIVER & CONTROLLER FOR 4 GRAY SCALE STN LCD

Samsung 

S6B1741

128SEG/129COM DRIVER & CONTROLLER FOR STN LCD

3-pin SPI Mode (PS0 = "L" , PS1 = "L")

To write data to the DDRAM, send Data Direction Command in 3-pin SPI mode. Data is latched at the rising edge of

SCLK. And the DDRAM column address pointer will be increased by one automatically.

CSB

SCLK

SID

0

23 0 1 7 8 15 0

3 Byte(1)

Page

MSB

LSB

2 Byte(2)

DDC

No. of

DATA

829 830831

104 Byte

Data In

(1) Set Page and Column Address.

Set Page Address

: 1 0 1 1 P3 P2 P1 P0

Set Column Address MSB

: 0 0 0 1 0 Y6 Y5 Y4

Set Column Address LSB

: 0 0 0 0 Y3 Y2 Y1 Y0

(2)Set DDC(Data Direction Command) and No. of Data Bytes.

Set Data Direction Command ( For SPI mode Only):

11101000

Set No. of Data Bytes

: D7 D6 D5 D4 D3 D2 D1 D0

(3) This figure is example for 104 Data bytes to be transfered.

Figure 6. 3-pin SPI Timing (RS is not used)

This command is used in 3-pin SPI mode only. It will be two continuous commands, the first byte controls the data

direction and informs the LCD driver the second byte will be number of data bytes will be write. After these two

commands sending out, the following messages will be data. If data is stopped in transmitting, it is not valid data.

New data will be transferred serially with most significant bit first.

NOTE: In spite of transmission of data, if CSB will be disable, state terminates abnormally. Next state is initialized.

Busy Flag

The Busy Flag indicates whether the S6B1741 is operating or not. When DB7 is "H" in read status operation, this

device is in busy status and will accept only read status instruction. If the cycle time is correct, the microprocessor

needs not to check this flag before each instruction, which improves the MPU performance.

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