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 137 of 233
8.2.35. Read_Memory_Continue (3Eh)
3Eh Read_Memory_Continue
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1
↑
XX 0 0 1 1 1 1 1 0 3Eh
1
st
Parameter
1
↑
1 XX X X X X X X X X X
2
nd
Parameter
1
↑
1
D1
[17..8]
D1
[7]
D1
[6]
D1
[5]
D1
[4]
D1
[3]
D1
[2]
D1
[1]
D1
[0]
000
3FF
x
st
Parameter
1
↑
1
Dx
[17..8]
Dx
[7]
Dx
[6]
Dx
[5]
Dx
[4]
Dx
[3]
Dx
[2]
Dx
[1]
Dx
[0]
000
3FF
N
st
Parameter
1
↑
1
Dn
[17..8]
Dn
[7]
Dn
[6]
Dn
[5]
Dn
[4]
Dn
[3]
Dn
[2]
Dn
[1]
Dn
[0]
000
3FF
Description
This command transfers image data from the display module’s frame memory to the host processor continuing from the
location following the previous read_memory_continue (3Eh) or read_memory_start (2Eh) command.
If set_address_mode B5 = 0:
Pixels are read continuing from the pixel location after the read range of the previous read_memory_start or
read_memory_continue. The column register is then incremented and pixels are read from the frame memory until the
column register equals the End Column (EC) value. The column register is then reset to SC and the page register is
incremented. Pixels are read from the frame memory until the page register equals the End Page (EP) value and the
column register equals the EC value, or the host processor sends another command.
If set_address_mode B5 = 1:
Pixels are read continuing from the pixel location after the read range of the previous read_memory_start or
read_memory_continue. The page register is then incremented and pixels are read from the frame memory until the page
register equals the End Page (EP) value. The page register is then reset to SP and the column register is incremented.
Pixels are read from the frame memory until the column register equals the End Column (EC) value and the page register
equals the EP value, or the host processor sends another command.
This command makes no change to the other driver status.
Restriction
A read_memory_start should follow a set_column_address, set_page_address or set_address_mode to define the read
location. Otherwise, data read with read_memory_continue is undefined.
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
Random data
SW Reset No change
HW Reset No change