Data Sheet

a-Si TFT LCD Single Chip Driver

240RGBx320 Resolution and 262K color

ILI9341

The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,

reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.

Page 204 of 233

11. Sleep Out – Command and Self-Diagnostic Functions of the

Display Module

11.1. Register loading Detection

Sleep Out-command (Command “Sleep Out (11h)”) is a trigger for an internal function of the display module,

which indicates, if the display module loading function of factory default values from EV Memory(or similar

device) to registers of the display controller is working properly.

If the register loading detection is successfully, there is inverted (= increased by 1) a bit, which is defined in

command “Read Display Self-Diagnostic Result (0Fh)” (= RDDSDR) (The used bit of this command is D7). If it is

failure, this bit (D7) is not inverted (= not increased by 1).

The flow chart for this internal function is following:

Power on sequence

HW reset

SW reset

RDDSDR(0Fh)'s D7 = '0'

Sleep IN

mode

Sleep OUT

mode

Sleep IN (10h)

Sleep OUT (11h)

Successful ?

D7 inverted

YES