ST7628
9.1.11 SLPIN: Sleep In (10h)
Command
SLPIN
A0
/RD /WR
D7
D6
D5
D4
D3
D2
D1
D0
Hex
0
0
0
1
0
0
0
0
(10h)
0
1
0
Parameter
No Parameter
Description
This command causes the LCD module to enter the minimum power consumption mode.
In this mode the DC/DC converter is stopped, Internal display oscillator is stopped, and panel
scanning is stopped.
Blankꢀdisplay
COM/SEGꢀOutput
Memoryꢀscanꢀoperation
DCꢀchargeꢀinꢀtheꢀcapacitor
STOPꢀ(Blankꢀdisplay)
STOP
0V
DISCHARGE
LCDꢀDrivingꢀvoltageꢀ(Plus)
LCDꢀDrivingꢀvoltage(Minus)
InternalꢀOscillator
0V
0V
STOP
MCU interface and memory are still working and the memory keeps its contents
This command has no effect when module is already in sleep in mode. Sleep In Mode can only
be exit by the Sleep Out Command (11h).
Restriction
It will be necessary to wait 5msec before sending next 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
Status
Availability
Yes
Availability
Normal Mode On, Idle Mode Off, Sleep Out
Normal Mode On, Idle Mode On, Sleep Out
Partial Mode On, Idle Mode Off, Sleep Out
Partial Mode On, Idle Mode On, Sleep Out
Sleep In
Yes
Yes
Yes
Yes
Default
Status
Default Value
Power On Sequence
S/W Reset
Sleep in mode
Sleep in mode
Sleep in mode
H/W Reset
Ver 1.4
90/213
2008/08