SSD1859 Solomon Systech, SSD1859 Datasheet - Page 21

• Manufacturer Part Number: SSD1859
• Description: 128 x 80 STN LCD Segment / Common 4 G/S Drive
• Manufacturer: Solomon Systech

SSD1859
Hex
4C~4F
50~56
57~63
64~67
68~80
81
82
83
D7
0
X
0
0
1
X
1
1
1
D6
1
X
1
1
0
X
0
1
0
Rev 1.0
D5
0
X
0
1
0
C5
0
1
0
D4
0
N4
1
0
0
C4
0
1
0
P 21/48 Dec 2003
1
N3
0
0
0
C3
0
X3
0
D3
D2
1
N2
B2
1
0
C2
0
X2
0
D1
X
N1
B1
B1
0
C1
1
X1
1
D0
X
N0
B0
B0
1
C0
0
X0
1
Set N-line
Inversion
Set LCD Bias
Reserved
Set DC-DC
Converter Factor
Reserved
Set Contrast
Control Register
OTP Setting
OTP
Programming
Command
Reserved
Description
The second command sets the n-line
inversion register from 3 to 33 lines to
reduce display crosstalk. Register
values from 00001b to 11111b are
mapped to 3 lines to 33 lines
respectively. Value 00000b disables the
N-line inversion, which is the POR
value. To avoid a fix polarity at some
lines, it should be noted that the total
number of mux (including the icon line)
should NOT be a multiple of the lines of
inversion (n).
Sets the LCD bias from 1/4 ~ 1/10
according to B2B1B0:
000: 1/4 bias
001: 1/5 bias
010: 1/6 bias
011: 1/7bias
100: 1/8 bias
101: 1/9 bias
110: 1/10 bias (POR)
Sets the DC-DC multiplying factor from
3X to 6X B1B0:
00: 3X (POR)
01: 4X
10: 5X
11: 6X
Reserved
The second command sets one of the
64 contrast levels. The darkness
increase as the contrast level increase.
The level is set to 32 after POR.
Set the desired Vout voltage value:
0000: original contrast
0001: original contrast +1 step
0010: original contrast +2 steps
0011: original contrast +3 steps
0100: original contrast +4 steps
0101: original contrast +5 steps
0110: original contrast +6 steps
0111: original contrast +7 steps
1000: original contrast -8 steps
1001: original contrast -7 steps
1010: original contrast -6 steps
1011: original contrast -5 steps
1100: original contrast -4 steps
1101: original contrast -3 steps
1110: original contrast -2 steps
1111: original contrast -1 step
Please refer the sequence of OTP
programming
Solomon Systech
www.DataSheet4U.com