ST7789V2 datasheet(68/319 Pages) SITRONIX

68 / 319 page

ST7789V2

Version 1.0

Page 68 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.

8.6

Data Transfer Pause

It will be possible when transferring a command, frame memory data or multiple parameter data to invoke

a pause in the data transmission. If the chip select line is released after a whole byte of a frame memory data

or multiple parameter data has been completed, then driver will wait and continue the frame memory data or

parameter data transmission from the point where it was paused. If the chip select Line is released after a

whole byte of a command has been completed, then the display module will receive either the command‘s

parameters (if appropriate) or a new command when the chip select line is next enabled as shown below.

This applies to the following 4 conditions:

1) Command-Pause-Command

2) Command-Pause-Parameter

3) Parameter-Pause-Command

4) Parameter-Pause-Parameter

8.6.1

Parallel interface pause

Figure 22 Parallel bus pause protocol (paused by CSX)

8.7

Data Transfer Mode

The module has three kinds color modes for transferring data to the display RAM. These are 12-bit color

per pixel, 16-bit color per pixel and 18-bit color per pixel. The data format is described for each interface. Data

can be downloaded to the frame memory by 2 methods.

8.7.1

Method 1

The image data is sent to the frame memory in successive frame writes, each time the frame memory is

filled, the frame memory pointer is reset to the start point and the next frame is written.

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