ST7789H2 datasheet(5/314 Pages) SITRONIX

5 / 314 page

ST7789H2

Version 1.0

Page 5 of 314

2014/01

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.

8.14.1

Rolling scroll ...................................................................................................................................... 126

8.14.2

Vertical Scroll Example ...................................................................................................................... 128

8.15

TEARING EFFECT.......................................................................................................................................... 130

8.15.1

Tearing effect line modes.................................................................................................................... 130

8.15.2

Tearign effect line timings .................................................................................................................. 131

8.15.3

Example 1: MPU Write is faster than panel read............................................................................... 132

8.15.4

Example 2: MPU write is slower than panel read ............................................................................. 133

8.16

POWER ON/OFF SEQUENCE......................................................................................................................... 134

8.16.1

Uncontrolled Power Off ..................................................................................................................... 135

8.17

POWER LEVEL DEFINITION ........................................................................................................................... 136

8.17.1

Power Level........................................................................................................................................ 136

8.18

POWER FLOW CHART ................................................................................................................................... 137

8.19

GAMMA CORRECTION .................................................................................................................................. 138

8.20

GRAY VOLTAGE GENERATOR FOR DIGITAL GAMMA CORRECTION................................................................... 143

8.21

DISPLAY DIMMING ....................................................................................................................................... 144

8.21.1

General Description........................................................................................................................... 144

8.21.2

Dimming Requirement........................................................................................................................ 144

8.21.3

Definition of brightness transition time.............................................................................................. 146

8.22

CONTENT ADAPTIVE BRIGHTNESS CONTROL (CABC) ................................................................................. 148

8.22.1

Definition of CABC ............................................................................................................................ 148

8.22.2

Minimum brightness setting of CABC function .................................................................................. 152

COMMAND ........................................................................................................................................................ 154

9.1

SYSTEM FUNCTION COMMAND TABLE 1....................................................................................................... 154

9.1.1

NOP (00h)............................................................................................................................................... 160

9.1.2

SWRESET (01h): Software Reset ............................................................................................................ 161

9.1.3

RDDID (04h): Read Display ID ............................................................................................................. 163

9.1.4

RDDST (09h): Read Display Status ........................................................................................................ 165

9.1.5

RDDPM (0Ah): Read Display Power Mode ........................................................................................... 168

9.1.6

RDDMADCTL (0Bh): Read Display MADCTL ...................................................................................... 170

9.1.7

RDDCOLMOD (0Ch): Read Display Pixel Format ............................................................................... 172

9.1.8

RDDIM (0Dh): Read Display Image Mode ............................................................................................ 174

9.1.9

RDDSM (0Eh): Read Display Signal Mode............................................................................................ 176

9.1.10

RDDSDR (0Fh): Read Display Self-Diagnostic Result...................................................................... 178

9.1.11

SLPIN (10h): Sleep in ........................................................................................................................ 180

9.1.12

SLPOUT (11h): Sleep Out.................................................................................................................. 182

9.1.13

PTLON (12h): Partial Display Mode On........................................................................................... 184

9.1.14

NORON (13h): Normal Display Mode On......................................................................................... 185

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