Specifications

S1D15300 Series
Rev.1.4 EPSON 5–21
(13) End
Cancels Read-Modify-Write mode and returns column address to the original address (when Read-Modify-Write was issued).
(14) Reset
Resets the Initial Display Line register, Column Address coun-
ter, Page Address register, and output status selector circuit to
their initial status. The Reset command does not affect on the
contents of display RAM. Refer to the Reset circuit section of
FUNCTIONAL DESCRIPTION.
The Reset command cannot initialize LCD power supply. Only
the Reset siganl to the RES pin can initialize the supplies.
(15) Output Status Select Register
Applicable to the S1D15300 and S1D15302. When D is high
or low, the scan direction of the COM output pin is selectable.
Refer to Output Status Selector Circuit in Functional Descrip-
tion for details.
D: Selects the scan direction of COM output pin
* : Invalid bit
(16) Set Power Control
Selects one of eight power circuit functions using 3-bit register.
An external power supply and part of on-chip power circuit can
be used simultaneously. Refer to Power Supply Circuit section
of FUNCTIONAL DESCRIPTION for details.
When A0 goes low, voltage follower turns off. When A0 goes
high, it turns on.
When A1 goes low, voltage regulator turns off. When A1 goes
high, it turns on.
When A2 goes low, voltage booster turns off. When A2 goes
high, it turns on.
(17) Set Electronic Control
Adjusts the contrast of LCD panel display by changing V5 LCD
drive voltage that is output by voltage regulator of on-board
power supply.
This command selects one of 32 V
5 LCD drive voltages by
storing data in 5-bit register. The V
5 voltage adjusting range
should be determined depending on the external resistance.
Refer to the Voltage Regulator section of FUNCTIONAL
DESCRIPTION for details.
E R/W
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
01011101110
Column address
Read-Modify-Write mode is selected. End
Return
N N+1 N+2 N+3 N+m N
D4 D3 D2 D1 D0 | V5 |
00000 LOW
00001
00010
:↓
11101
11110
1 1 1 1 1 HIGH
E R/W
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
01011100010
E R/W
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
0101100D∗∗∗
E R/W
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
01000101A2A1A0
R/W
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
0 1 0 1 0 0 A4 A3 A2 A1 A0
Set register to (D4,D3,D2,D1,D0)=(0,0,0,0,0) to suppress elec-
tronic control function.
(18) Static Indicator
This command turns on or off static drive indicators. The
indicator display is controlled by this command only, and it is
not affected by the other display control commands.
Either FR or FRS terminal is connected to either of static
indicator LCD drive electrodes, and the remaining terminal is
connected to another electrode. When the indicator is turned
on, the static drive operates and the indicator blinks at an
interval of approximately one second. The pattern separation
between indicator electrodes are dynamic drive electrodes is
recommended. A closer pattern may cause an LCD and
electrode deterioration.
D 0: Static indicator OFF
1: Static indicator ON
(19) Power Save (Compound Command)
When all displays are turned on during indicator off, the Power
Save command is issued to greatly reduce the current consump-
tion.
If the static indicators are off, the Power Save command sleeps
the system. If on, this command stands by the system.
Release the Sleep mode using the both Power Save OFF
command (Indicator ON command or All Indicator Displays
OFF command) and Static Indictor ON command.
Release the Standby mode using the Power Save OFF command
(Indicator ON command or All Indicator Displays OFF
command).
E R/W
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
0101010110D
Static OFF Indicator ON
Power Save (compound command)
(Sleep mode) (Standby mode)
(Sleeve mode released) (Standby mode released)
Power Save OFF (Display ON command or
Entire Displays OFF command)
Static Indicator ON