ST7528 datasheet(23/97 Pages) SITRONIX

23 / 97 page

ST7528

Ver2.3

23/97

2007/1/3

3-Line SPI Mode (PS0 = "L", PS1 = "L",PS2= "L")

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

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

(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 Y7 Y6 Y5

Set Column Address LSB

: 0 0 0 0

Y4 Y3 Y2 Y1

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

Set Data Direction Command (For SPI mode Only):

1 1 1 0 1 0 0 0

Set No. of Data Bytes

: D7 D6 D5 D4 D3 D2 D1 D0

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

Figure 2 3-pin SPI Timing (RS is not used)

This command is used in 3-Line 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 is disabling, state terminates abnormally. Next state is initialized.

ST7528 Datasheet(PDF) 23 Page - Sitronix Technology Co., Ltd.