ST7577 Sitronix Technology, ST7577 Datasheet - Page 30

• Manufacturer Part Number: ST7577
• Description: Dot Matrix LCD Controller/Driver
• Manufacturer: Sitronix Technology

ST7577
Set V0
Set V0 voltage level into this register and the built-in voltage regulator will generate the V0.
The V0 voltage can be calculated by this formula:
The parameters in this formula are controlled by the hardware pin “PM” (Ta=25°C).
Set Start Line (Vertical-Scroll)
Sets the line address of display RAM to determine the initial display line instruction. The RAM display data is displayed at
the top of row (COM0) of LCD panel.
Ver 1.0a
A0
A0
0
0
S
0
0
0
1
1
1
:
5
H/W Setting
R/W(/WR)
R/W(/WR)
PM=”H”
PM=”L”
0
0
S
0
0
0
0
0
0
:
4
D7
D7
1
0
S
0
0
0
0
0
0
:
3
Figure 19 V0 voltage vs. V
V
D6
D6
OP6
1
3.0
4.5
a
V0=( a + V
S
0
0
0
1
1
1
:
2
V
D5
D5
S
OP5
5
30/48
OP[6:0]
S
0
0
1
0
0
1
:
1
x b ) …………………………………………………………(1)
V
D4
D4
S
OP4
4
OP[6:0]
0.03
0.03
value
V
b
S
0
1
0
0
1
0
D3
D3
:
S
OP3
0
3
V
D2
D2
S
OP2
2
Column address
V
D1
D1
S
36
37
38
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OP1
0
1
2
:
1
Unit
V
V
2008/02/14
V
D0
D0
S
OP0
0