ST7522 Sitronix, ST7522 Datasheet - Page 29

• Manufacturer Part Number: ST7522
• Description: 17 x 96 Dot Matrix LCD Controller
• Manufacturer: Sitronix

ST7522
V5 amplifier input voltage can be set by this command, which provide coarse adjustment only. This command needs to be used
with the electric volume control command in order to get correct V5 output. This command is a two byte command used as a pair
with the follower input voltage mode set command and the follower input voltage register set command, and both commands
must be issued one after the other.
See the power control explanation for details.
Default value=“02H”
This command sets the V5 voltage internal resistor ratio. that can control V5 level with follower input voltage set command and
electric volume command.
See the power control explanation for details.
Default value=“06H”
Ver 1.0c
A0
A0
A0
0
0
0
Follower input voltage set(Double Byte Command)
The follower input voltage mode set
Follower input voltage register set
Follower amplified ratio
―
―
―
RD
RD
RD
1
1
1
WR
WR
WR
―
―
―
0
0
0
D7
D7
D7
1
0
0
Rarb2
Jvref1
D6
D6
D6
1
0
0
0
0
0
0
1
1
1
1
0
0
1
1
Follower amplified ratio parameter
Follower input voltage parameter
Rarb1
Jvref0
0
0
1
1
0
0
1
1
D5
D5
D5
1
0
1
0
1
0
1
Rarb0 V5 amplified ratio
29/45
0
1
0
1
0
1
0
1
D4
D4
D4
1
0
0
2/6*V
V5 input voltage
www.DataSheet.co.kr
4/6*V
3/6*V
1/6*V
SS
5(default)
(default)
D3
D3
D3
SS
SS
SS
0
1
0
2.5
3.5
4.5
5.5
2
3
4
RaRb2
D2
D2
D2
0
0
RaRb1
Jvref1
D1
D1
D1
0
RaRb0
Jvref0
D0
D0
D0
0
2002/07/10
Datasheet pdf - http://www.DataSheet4U.net/