uc1682 ETC-unknow, uc1682 Datasheet - Page 23

• Manufacturer Part Number: uc1682
• Description: 80 X 104rgb C-stn Lcd Controller-driver W/ 32-shade Per Dot, 12-bit Per Rgb
• Manufacturer: ETC-unknow

(22) S
Program color mode and RGB input pattern. Color mode (LC[7:6]) definition:
Revision 0.6
Note:
Data Read Sequence
Dither Options:
LC[7:6] = 00b ( RRR-GGG-BB, 256 color )
LC[7:6] = 10b ( RRRRR-GGGGGG-BBBBB, 56K color )
LC[7:6] = 11b ( RRRRRR-GGGGGGG-BBBBB, 221K color )
DC[4]=1b enables dither function. Refer to (18) Set Display Enable for more information.
LC[7:6] = 01b ( RRRR-GGGG-BBBB, 4K color )
For system designers who want to use their own dithering algorithm, please set LC[7:6] = 10b (56k
color mode) and use the following input pattern to bypass on-chip dithering algorithm:
ET
1-bit extension for G, 1-bit dither for B. 12 bits of input data is stored to 12 RAM bits.
3 bytes of input data will be merged into 2 sets of RGB data.
One byte of input data is extended and stored to 12 RAM bits.
1-bit dither for R/G, 2-bit dither for B. 16 bits input data dithered to 12 RAM bits.
2-bit dither per color. 18 out of 24 bits input data is dithered to 12 RAM bits.
Set Color Mode LC [7:6]
C
for LC[7:6] = 0.
for LC[7:6] = 1, 2, 3.
OLOR
R/G/B: the input Red/Green/Blue data.
R/G
R/G/B
Data Write Sequence
1
Data Write Sequence
1
2
3
Data Write Sequence
1
2
Data Write Sequence
1
2
3
Data Read Sequence
1
2
Data Read Sequence
1
2
st
st
nd
rd
st
nd
st
nd
rd
st
nd
st
nd
MN
M
Byte Write Data
Byte Write Data
Byte Write Data
Byte Write Data
Byte Write Data
Byte Read Data
Byte Read Data
Action
Byte Write Data
Byte Write Data
Byte Write Data
Byte Write Data
Byte Read Data
Byte Read Data
DN
: the Red/Green bits mapped from RGB input data.
ODE
: the N-th bit of after-dither Red/Green/Blue input data
R3-R2-R1-R0-1-G4-G3-G2-G1-G0-1-B2-B1-B0-1-0
C/D W/R D7
0
D[7:0]
R2
D[7:0]
R3
B3
G3
D[7:0]
R4
G2
D[7:0]
D[7:0]
G
D[7:0]
R
G
R5
G6
R2
B4
M1
D3
D0
0
R1
R2
B2
G2
R3
G1
R
B
R4
G5
B3
R1
B2
D2
D2
1
R0
R1
B1
G1
R2
G0
R
B
R3
G4
R0
D6
B2
B1
1
D1
D1
D5
0
G2
R0
B0
G0
R1
B4
R
B
G3
R2
B1
R
B0
D0
D0
M
D4
1
G1
G3
R3
B3
R0
B3
G
R1
G2
G2
B0
0
0
D4
D3
0
80x104RGB CSTN Controller-Driver
G0
G2
R2
B2
G5
B2
G
G1
G1
R0
--
0
0
D2
D3
1
LC7 LC6
B1
G1
R1
B1
G4
B1
G
D1
G0
G0
--
--
0
0
D2
D0
B0
G0
R0
B0
G3
B0
G
G
--
--
--
0
0
M2
D1
UC1682
21