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ST7585 Datasheet, PDF (24/51 Pages) Sitronix Technology Co., Ltd. – 66 x 102 Dot Matrix LCD Controller/Driver
ST7585
Set Y Address of RAM
Y [3:0] defines the Y address vector address of the display RAM.
A0
R/W
D7
D6
D5
D4
D3
D2
0
0
0
1
0
0
Y3
Y2
Y3
Y2
Y1
Y0
Content
Allowed X-Range
0
0
0
0
Page0 (display RAM)
0 to 101
0
0
0
1
Page1 (display RAM)
0 to 101
0
0
1
0
Page2 (display RAM)
0 to 101
0
0
1
1
Page3 (display RAM)
0 to 101
0
1
0
0
Page4 (display RAM)
0 to 101
0
1
0
1
Page5 (display RAM)
0 to 101
0
1
1
0
Page6 (display RAM)
0 to 101
0
1
1
1
Page7 (display RAM)
0 to 101
1
0
0
0
Page8 (display RAM)
0 to 101
1
0
0
1
Page9 (display RAM)
0 to 101
Set X Address of RAM
The X address points to the columns. The range of X is 0…101.
A0
R/W
D7
D6
D5
D4
D3
D2
0
0
1
X6
X5
X4
X3
X2
X6
X5
X4
X3
X2
X1
X0
Column address
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
0
2
0
0
0
0
0
1
1
3
:
:
:
:
:
:
:
:
1
1
0
0
0
1
1
99
1
1
0
0
1
0
0
100
1
1
0
0
1
0
1
101
D1
D0
Y1
Y0
Valid Bit
D7~ D0
D7~ D0
D7~ D0
D7~ D0
D7~ D0
D7~ D0
D7~ D0
D7~ D0
D7
D7
D1
D0
X1
X0
H=1 (Extended Instruction)
Set V0
A0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
V04
V03
V02
V01
V00
0
0
The operation voltage V0 can be set by software. The parameters are explained in table 4.
V0 = a + Vop[4:0] * b
(1)
Vop[4:0] = V0[4:0] + V0a[4:0]
(2)
Note: The maximum V0 which can be generated depends on VDD2 and the loading of the display module.
Table 4 Parameters of V0 Generation Circuit
SYMBOL
VALUE
UNIT
a
8.232
V
b
0.049
V
Ver 1.0c
24/51
2009/04/14