ST7789V2 datasheet(34/319 Pages) SITRONIX

34 / 319 page

ST7789V2

Version 1.0

Page 34 of 319

2016/11

Sitronix Confidential

The information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or

disclosed in whole or in part without prior written permission of Sitronix.

Name

I/O

Description

Connect Pin

DCX=’1’: display data or parameter.

DCX=’0’: command data.

-If not used, please fix this pin at VDDI or DGND.

RDX

-Read enable in 8080 MCU parallel interface.

-If not used, please fix this pin at VDDI or DGND.

MCU

WRX

-Write enable in MCU parallel interface.

- Display data/command selection pin in 4-line serial interface.

- Second Data lane in 2 data lane serial interface.

-If not used, please fix this pin at VDDI or DGND.

MCU

VSYNC

-Vertical (Frame) synchronizing input signal for RGB interface operation.

-If not used, please fix to the VDDI or DGND.

MCU

HSYNC

-Horizontal (Line) synchronizing input signal for RGB interface operation.

- If not used, please fix to VDDI or DGND.

MCU

ENABLE

-Data enable signal for RGB interface operation.

-If not used, please fix this pin at VDDI or DGND.

MCU

DOTCLK

-Dot clock signal for RGB interface operation.

-If not used, please fix this pin at VDDI or DGND.

MCU

SDA

I/O

-When IM3: Low, SPI interface input/output pin.

-When IM3: High, SPI interface input pin.

-The data is latched on the rising edge of the SCL signal.

-If not used, please fix this pin at VDDI or DGND level.

MCU

SDO

-SPI interface output pin.

-The data is output on the falling edge of the SCL signal.

-If not used, let this pin open.

MCU

DB[17:0]

I/O

-DB[17:0] are used as MCU parallel interface data bus.

8-bit I/F: when IM3:0, DB[7:0] are used; when IM3:1, DB[17:10] are used.

9-bit I/F: when IM3:0, DB[8:0] are used; when IM3:1, DB[17:9] are used.

16-bit I/F: when IM3:0, DB[15:0] are used; when IM3:1, DB[17:10] and

DB[8:1] are used.

18-bit I/F: DB[17:0] are used.

-DB[17:0] are used as RGB interface data bus.

6-bit RGB I/F: DB[5:0] are used.

16-bit RGB I/F: DB[17:13], DB[11:1] are used.

18-bit RGB I/F: DB[17:0] are used.

-If not used, please fix this pin at VDDI or DGND.

MCU

-Tearing effect signal is used to synchronize MCU to frame memory

MCU

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