參數(shù)資料
型號: SSD1852T2R1
廠商: Electronic Theatre Controls, Inc.
英文描述: LCD Segment / Common Driver With Controller CMOS
中文描述: LCD段/與普通的CMOS驅(qū)動器控制器
文件頁數(shù): 31/55頁
文件大?。?/td> 637K
代理商: SSD1852T2R1
SSD1852
Rev 1.0
01/2003
SOLOMON
26
9.10 Set DC-DC Converter Factor
Internal DC-DC converter factor is set by this command. 3X to 6X multiplying factors
could be selected.
9.11 Set Contrast Control Register
This command adjusts the contrast of the LCD panel by changing V
L6
of the LCD drive
voltage provided by the On-Chip power circuits. V
L6
is set with 64 steps (6-bit) contrast control
register. It is a compound commands.
9.12 Set Gray Scale Mode (White/Light Gray/Dark Gray/Black)
Command 88(hex) to 8F(hex) are used to specify the four gray levels’ pulse width at the
four possible frames. The four gray levels are called white, light gray, dark gray and black. Each
level is defined by 4 registers for 4 consecutive frames. For example, WA is a 4-bit register to
define the pulse width of the 1
st
frame in White mode. WB is a register for 2
nd
frame in White
mode etc. Each command specifies two registers.
For 4 FRC,
Memory Content
1
st
Byte
FRAME
2
nd
Byte
Gray Mode
1
st
2
nd
3
rd
4
th
0
0
White
WA
WB
WC
WD
0
1
Light Gray
LA
LB
LC
LD
1
0
Dark Gray
DA
DB
DC
DD
1
1
Black
BA
BB
BC
BD
For 3 FRC,
Memory Content
1
st
Byte
FRAME
2
nd
Byte
Gray Mode
1
st
2
nd
3
rd
4
th
(No use)
0
0
White
WA
WB
WC
WD (XX)
0
1
Light Gray
LA
LB
LC
LD (XX)
1
0
Dark Gray
DA
DB
DC
DC (XX)
1
1
Black
BA
BB
BC
BC (XX)
Example for pure PWM mode:
No. of level
MSB
RAM Content
LSB
Gray Scale mode and Register (3/4 FRC)
Dark Gray
Mode
A,A,A,A
8,8,8,8
6,6,6,6
LSB
MSB
MSB
LSB
MSB
LSB
Dark Mode
Light Gray
Mode
5,5,5,5
4,4,4,4
3,3,3,3
White Mode
15-levels
12-levels
9-levels
LCD panel
display
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
F,F,F,F
C,C,C,C
9,9,9,9
0,0,0,0
0,0,0,0
0,0,0,0
Example for pure FRC mode:
No. of Frame
MSB
RAM Content
LSB
Gray Scale mode and Register (15PWM)
Dark Gray
Mode
F,F,0,0
F,F,F,0
LSB
MSB
MSB
LSB
MSB
LSB
Dark Mode
Light Gray
Mode
F,0,0,0
F,0,0,0
White Mode
3-FRC
4-FRC
LCD panel
display
1
1
1
1
1
1
0
0
0
0
1
1
0
0
0
0
F,F,F,F
F,F,F,F
0,0,0,0
0,0,0,0
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