ST7669 datasheet(23/216 Pages) SITRONIX

23 / 216 page

ST7669

Ver 1.3a

23/216

3/2/2009

3. 18 bit mode

D17, D16, D15, D14, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0: RRRRRRGGGGGGBBBBBB

There is only 1 write operation for 1 pixel data.

1 pixel data is written in the display data RAM when 1st –write operation finishes. “X” are ignored dummy bits.

(5) Truncated 16M color input mode

1. 8-bit mode

D7, D6, D5, D4, D3, D2, D1, D0: RRRRRRRR

1st-write

D7, D6, D5, D4, D3, D2, D1, D0: GGGGGGGG

2nd-write

D7, D6, D5, D4, D3, D2, D1, D0: BBBBBBBB

3rd-write

There are 3 write operations for 1 pixel data.

1st pixel data is written in the display data RAM when 3rd–write operation finishes. “X” are ignored dummy bits.

2. 16 bit mode

D15, D14, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0: RRRRRRRRGGGGGGGG

1st-write

D15, D14, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0: BBBBBBBBXXXXXXXX

2nd-write

There are 2 write operations for 1 pixel data.

1st pixel data is written in the display data RAM when 2nd –write operation finishes. “X” are ignored dummy bits.

7.1.3

8- and 9-bit Serial Interface

The 8-bit serial interface uses four pins /CS, SI, SCL, and A0 to enter commands and data. Meanwhile, the 9-bit serial

interface uses three pins /CS, SI and SCL for the same purpose.

Data read is not available in the serial interface. Data entered must be 8 bits. The relation between gray-scale data and

data bus in the serial input is the same as that in the 8-bit parallel interface mode at every gradation.

(1) 8-bit serial interface (4-line)

When entering data (parameters): A0= HIGH at the rising edge of the 8

th SCL.

ST7669 Datasheet(PDF) 23 Page - Sitronix Technology Co., Ltd.