ST7529 데이터 시트보기 (PDF) - Unspecified

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ST7529

32-Gray Scale Dot Matrix LCD Controller / Driver

Unspecified 

ST7529

(2) 3B3P 32 Gray Scale Display

1. 8-bit mode

D7 D6 D5 D4 D3 D2 D1 D0

P0 P0 P0 P0 P0 X X X 1st write

P1 P1 P1 P1 P1 X X X 2nd write

P2 P2 P2 P2 P2 X X X 3rd write

A single pixel of data is read after the third write operation as shown, and it is written in the display RAM.

“X” are dummy bits, which are ignored for display.

2. 16 bit mode

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

P0 P0 P0 P0 P0 X X X P1 P1 P1 P1 P1 X X X 1st write

P2 P2 P2 P2 P2 X X X X X X X X X X X 2nd write

A single pixel of data is read after the second write operation as shown, and it is written in the display RAM.

“X” are dummy bits, which are ignored for display.

7.1.3 8-bit (4 line) and 9-bit (3 line) Serial Interface

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

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

Data read is not available in the serial interface. The entered data must be 8 bits. Refer to the following chart for entering

commands, parameters or gray-scale data.

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.

Ver 1.8

17/86

2007/10/25

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