
S1D15G10D08B000
Rev. 1.0
EPSON
39
(24) Electronic volume control (VOLCTR) Command: 1 Parameter: 2
This command is used to specify the voltage regulator circuit’s electronic volume value
α
and resistance ratio of built-
in voltage regulating resistor.
*: Invalid bits irrelevant to the operations.
P1: It is used to specify V
1
electronic volume value.
P2: It specifies resistance ratio of the internal resistor.
(25) Increment Electronic Control (VOLUP) Command: 1 Parameter: No
This command increments Electronic Control value
α
of voltage regulator circuit by 1.
A0
RD
WR
D7
D6
Command
0
1
0
1
1
If you set the Electronic Control value to 111111, the control value is set to 000000 after this command has been
executed.
(26) Decrement Electronic Control (VOLDOWN) Command: 1 Parameter: No
This command decrements Electronic Control value
α
of voltage regulator circuit by 1.
If you set the Electronic Control value to 000000, the control value is set to 111111 after this command has been
executed.
A0
0
1
1
RD
1
1
1
WR
0
0
0
D7
1
*
*
D6
0
*
*
D5
0
P15 P14 P13 P12 P11 P10
*
*
*
D4
0
D3
0
D2
0
D1
0
D0
1
Function
Command
Parameter1 (P1)
Parameter2 (P2)
V
1
volume value
α
1 + Rb/Ra
P22 P21 P20
(27) Temperature Gradient Setting (TMPGRD) Command : 1, Parameter : 14
The average temperature gradient of the voltage for a liquid crystal drive voltage is set up with this command.
Set parameters P2 to P14 as in a table below.
A0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
RD
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
WR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D7
1
*
0
0
0
0
*
*
*
*
*
*
*
*
*
D6
0
*
0
0
0
0
*
*
*
*
*
*
*
*
*
D5
0
*
0
0
0
0
0
0
0
0
0
0
0
*
0
D4
0
*
0
0
0
0
0
0
0
0
0
0
0
*
0
D3
0
*
0
0
0
0
0
0
0
0
0
0
0
*
0
D2
0
*
0
0
0
0
0
0
0
0
0
0
0
*
0
D1
1
P11 P10
Average temperature gradient
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
*
0
0
0
D0
0
Function
Command
Parameter1 (P1)
Parameter2 (P2)
Parameter3 (P3)
Parameter4 (P4)
Parameter5 (P5)
Parameter6 (P6)
Parameter7 (P7)
Parameter8 (P8)
Parameter9 (P9)
Parameter10 (P10)
Parameter11 (P11)
Parameter12 (P12)
Parameter13 (P13)
Parameter14 (P14)
D5
0
D4
1
D3
0
D2
1
D1
1
D0
0
A0
0
RD
1
WR
0
D7
1
D6
1
D5
0
D4
1
D3
0
D2
1
D1
1
D0
1
Command