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 185 of 233
8.3.21. NV Memory Protection Key (D1h)
D1h NVMPKEY (NV Memory Protection Key)
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1 ↑ XX 1 1 0 1 0 0 0 1 D1h
1
st
Parameter 1 1 ↑ XX KEY [23:16] 55h
2
nd
Parameter 1 1 ↑ XX KEY [15:8] AAh
3
rd
Parameter 1 1 ↑ XX KEY [7:0] 66h
Description
KEY [23:0]: NV memory programming protection key. When writing MTP data to D1h, this register must be set to
0x55AA66h to enable MTP programming. If D1h register is not written with 0x55AA66h, then NV memory programming will
be aborted.
Restriction EXTC should be high to enable this command
Register
Availability
Status Availability
Normal Mode ON, Idle Mode OFF, Sleep OUT Yes
Normal Mode ON, Idle Mode ON, Sleep OUT Yes
Partial Mode ON, Idle Mode OFF, Sleep OUT Yes
Partial Mode ON, Idle Mode ON, Sleep OUT Yes
Sleep IN Yes
Default
Status Default Value
Power ON Sequence KEY [23:0]=55AA66h
SW Reset KEY [23:0]=55AA66h
HW Reset KEY [23:0]=55AA66h