Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
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Page 100 of 233
8.2.11. Enter Sleep Mode (10h)
10h SPLIN (Enter Sleep Mode)
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1 ↑ XX 0 0 0 1 0 0 0 0 10h
Parameter No Parameter
Description
This command causes the LCD module to enter the minimum power consumption mode. In this mode e.g. the DC/DC
converter is stopped, Internal oscillator is stopped, and panel scanning is stopped.
MCU interface and memory are still working and the memory keeps its contents.
X = Don’t care
Restriction
This command has no effect when module is already in sleep in mode. Sleep In Mode can only be left by the Sleep Out
Command (11h). It will be necessary to wait 5msec before sending next to command, this is to allow time for the supply
voltages and clock circuits to stabilize. It will be necessary to wait 120msec after sending Sleep Out command (when in Sleep
In Mode) before Sleep In command can be sent.
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 Sleep IN Mode
SW Reset Sleep IN Mode
HW Reset Sleep IN Mode
Flow Chart
It takes 120msec to get into Sleep In mode after SLPIN command issued.
Command
Parameter
Action
Mode
Legend
Sequential transfer
SPLIN (10h)
Display whole blank screen
(Automatic No effect to DISP
ON/OFF commands)
Drain charge
from LCD
panel
Stop DC/DC
Converter
Stop Internal
Oscillator
Sleep In Mode
Display