HD66781 Datasheet, PDF (80/196 Pages) Renesas Technology Corp – 720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM

HD66781
Preliminary
16-bit interface 2 transmissions TRI = 1, DFM = 0 (Base image:262,144 colors, OSD image: 32,768 colors)
input pins
1st transmission
2nd transmission
DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB
17 16 15 14 13 12 11 10
8
7
65
4
3
2
1 17 16
GRAM
write data
WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD
[17 ] [16 ] [15 ] [14 ] [13 ] [12 ] [11 ] [10 ] [9 ] [8 ] [7 ] [6 ] [5 ] [4 ] [3 ] [2 ] [1 ] [0 ]
RGB pixel
assignment
OSD data
ODF = 0
OSD data
ODF = 1
R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0
R 5 R 4 R 3 R 2 R 1 _α2 G5 G4 G3 G2 G1 α1 B5 B4 B3 B2 B1 α0
α2 α1 α0 R5 R4 R3 R2 R1 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1
input pins
16-bit interface 2 transmissions TRI = 1, DFM = 1 (Base image:262,144 colors, OSD image: 32,768 colors)
1st transmission
2nd transmission
DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB
2
1
17 16 15 14 13 12 11 10
8
7
65
4
3
2
1
GRAM
WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD
write data _{[17 ] [16 ] [15 ] [14 ] [13 ] [12 ] [11 ] [10 ] [9 ] [8 ] [7 ] [6 ] [5 ] [4 ] [3 ] [2 ] [1 ] [0 ]}
RGB pixel
assignment ^{R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0}
OSD data
ODF = 0
R 5 R 4 R 3 R 2 R 1 α2 G5 G4 G3 G2 G1 α1
B5
B4
B3
B2
B1
α0
OSD data
ODF = 1
α2 α1
α0 R5 R4 R3 R2 R1 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1
RAM data write in 16-bit interface (Base image 262,144 colors/OSD image 32,768 colors)
9-bit interface (Base image 262,144 colors/OSD image 32,786 colors)
1st transmission (Upper)
2nd transmission (Lower)
Input pin
DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB
17 16 15 14 13 12 11 10 9 17 16 15 14 13 12 11 10
DB
9
GRAM Write WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD
data
[17] [16] [15] [14] [13] [12] [11] [10] [9] [8] [7] [6] [5] [4] [3] [2] [1] [0]
RGB picture
Assignment
R5
R4
R3
R2
R1
R0
G5 G4 G3 G2 G1 G0
B5
B4
B3
B2
B1
B0
OSD data
ODF=0
R5 R4 R3 R2 R1 α 2 G5 G4 G3 G2 G1 α 1 B5 B4 B3 B2 B1 α 0
OSD data
ODF=1
α 2 α ₁ α _{0 R5 R4 R3 R2 R1 G5 G4 G3 G2 G1 B5 B4 B3 B2 B1}
RAM data write in 9-bit interface (Base image 262,144 colors /OSD image 32,768 colors)
Rev.0.5, July.31.2003, page 80 of 196