STE2007 STMicroelectronics, STE2007 Datasheet - Page 49

• Manufacturer Part Number: STE2007
• Description: 96 x 68 Single Chip LCD Controller/Driver
• Manufacturer: STMicroelectronics

STE2007
8.12.3 Electronic volume
Table 34.
Table 35.
8.13
(D/C)
(D/C)
0
0
0
0
0
0
:
:
0
D7
This command sets a value of electronic volume EV for the VLCD voltage regulator, to adjust
the contrast of LCD panel display (End User).
1
Power saver mode
If the display all points ON command is executed when the display is in display OFF mode,
power saver mode is entered. This mode stops every operation of the LCD display system.
Figure 37. Power saver mode
The internal states in power saver mode are as follows:
D7
1
Electronic volume
EV
–
–
–
D6
0
D6
Power saver (Display OFF & Display all points ON
0
The oscillation circuit is stopped
The LCD power supply circuit is stopped
The LCD driver circuit is stopped and segment/common driver outputs to the Vss
level
Powersaver OFF (Display all points OFF)
D5
0
D5
0
Power saver mode canceled
D4
Power saver mode
0
0
0
1
1
1
D4
Electronic Volume Value
D3
0
0
0
0
1
1
D3
D2
0
0
0
0
1
1
D2
:
:
D1
0
0
1
0
1
1
D1
D0
0
1
0
0
0
1
D0
Hex
9E
80
81
82
90
9F
:
:
Command Identifier + Data Field
16 Step (Default)
EV Value
30 Step
31 Step
0 Step
1 Step
2 Step
:
:
Setting
VLCD voltage
Command
Effect
8 Commands
high
low
:
:
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