S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 308

• Manufacturer Part Number: S1D1
• Description: LCD Controller-driver With Built-in Character ROM
• Manufacturer: Epson Electronics America, Inc.

(15) Common Output Mode Select
This command can select the scan direction of the COM output terminal. For details, see the function explanation in
“Common Output Mode Select Circuit.”
(16) Power Controller Set
This command sets the power supply circuit functions. See the function explanation in “The Power Supply Circuit,”
for details
[Translator’s Note: the abbreviations explained within these parentheses for V
and V/F have been written out in the English translation and are therefore no
longer necessary.]
(17) V
This command sets the V
Power Supply Circuits.”
(18) The Electronic Volume (Double Byte Command)
This command makes it possible to adjust the brightness of the liquid crystal display by controlling the liquid crystal
drive voltage V
This command is a two byte command used as a pair with the electronic volume mode set command and the electronic
volume register set command, and both commands must be issued one after the other.
• The Electronic Volume Mode Set
When this command is input, the electronic volume register set command becomes enabled. Once the electronic volume
mode has been set, no other command except for the electronic volume register command can be used. Once the
electronic volume register set command has been used to set data into the register, then the electronic volume mode is
released.
Rev. 2.4a
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
0
E R/W
1
E R/W
E R/W
E R/W
1
1
1
5
Voltage Regulator Internal Resistor Ratio Set
0
0
0
0
1 1 0 0 0 * * * Normal COM0 COM63 COM0 COM47 COM0 COM31 COM0 COM53 COM0 COM51
5
through the output from the voltage regulator circuits of the internal liquid crystal power supply.
0
0
1
0
0
0
5
1
voltage regulator internal resistor ratio. For details, see the function explanation is “The
1
1
0
0
0
0
1
0
0
Reverse COM63 COM0 COM47 COM0 COM31 COM0 COM53 COM0 COM51 COM0
0
1
0
0
0
1
1
0
0
1
0
0
1
1
1
0
S1D15605
0
1
0
1
0
0
1
1
EPSON
*****
Booster circuit: OFF
Booster circuit: ON
Voltage regulator circuit: OFF
Voltage regulator circuit: ON
Voltage follower circuit: OFF
Voltage follower circuit: ON
S1D15606
Rb/Ra Ratio
Selected Mode
Small
Large
*****
Selected Mode
S1D15607
*****
S1D15608
S1D15605 Series
*****
* Disabled bit
S1D15609
8–53
*****