SSD1789A Solomon Systech, SSD1789A Datasheet - Page 32
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SSD1789A
Manufacturer Part Number
SSD1789A
Description
CSTN LCD Driver
Manufacturer
Solomon Systech
Datasheet
1.SSD1789A.pdf
(69 pages)
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D/C
0
1
0
1
1
Hex
FB
F2
Table 8 - Extended command table
Solomon Systech
D7 D6 D5 D4 D3 D2 D1 D0
1
1
0
0
*
N
1
1
0
*
6
N
1
1
0
*
5
N
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1
1
0
*
4
F
N
1
0
0
3
3
F
N
0
0
0
2
2
N
B
F
1
1
1
1
1
N
B
F
1
0
0
0
0
Set biasing ratio
Set Frame
frequency and N-
line Inversion
Command
Allow user to set bias from 1/ 7 to 1/10
B
0 0
0 1
1 0
1 1
This command uses to change the frame frequency; set the
N-line inversion and N-line inversion mode
F
0 1 1 1 : 79.3 Hz
0 1 1 0 : 75.8 Hz
0 1 0 1 : 73.5 Hz (POR)
0 1 0 0 : 71.3 Hz
0 0 1 1 : 69.8 Hz
The second byte data N
inversion register from 2 to 64 lines to reduce display
crosstalk. Register values from 000001b to 111111b are
mapped to 2 lines to 64 lines respectively. Value 00000b
disables the N-line inversion. 010000 is the POR value. To
avoid a fix polarity at some lines, it should be noted that the
total number of mux should NOT be a multiple of the lines
of inversion (n).
N
0 – reset n-line counter per frame (POR)
1 – will not reset n-line counter per frame
Note: The frame frequency is measured at 7-line inversion condition
and is calculated as 1 / ( (Period of 7-line) * 132 / 7 )
3
1
6
B
F
2
0
F
1
Jul 2004
F
0
1/7 bias
1/8 bias
1/9 bias (POR)
1/10 bias
Bias ratio
P 32/69 Rev 1.0
Description
5
N
4
N
3
N
2
N
1
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N
SSD1789A Series
0
sets the n-line
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