ST7735
9.7 Data Color Coding
9.7.1 8-bit Parallel Interface (IM2, IM1, IM0= “100”)
Different display data formats are available for three Colors depth supported by listed below.
- 4k colors, RGB 4,4,4-bit input.
- 65k colors, RGB 5,6,5-bit input.
- 262k colors, RGB 6,6,6-bit input.
9.7.2 8-bit data bus for 12-bit/pixel (RGB 4-4-4-bit input), 4K-Colors, 3AH= “03h”
“1”
RESX
“100”
IM[2:0]
CSX
D/CX
WRX
“1”
RDX
8080-series control pins
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
1
1
0
0
R1, Bit 3
R1, Bit 2
R1, Bit 1
R1, Bit 0
G1, Bit 3
G1, Bit 2
G1, Bit 1
G1, Bit 0
Pixel n
B1, Bit 3
B1, Bit 2
B1, Bit 1
B1, Bit 0
R2, Bit 3
R2, Bit 2
R2, Bit 1
R2, Bit 0
G2, Bit 3
G2, Bit 2
G2, Bit 1
G2, Bit 0
B2, Bit 3
B2, Bit 2
B2, Bit 1
B2, Bit 0
R3, Bit 3
R3, Bit 2
R3, Bit 1
R3, Bit 0
G3, Bit 3
G3, Bit 2
G3, Bit 1
G3, Bit 0
Pixel n+1
12 bits
12 bits
Look-up table for 4096 color data mapping (12 bits to 18 bits)
18 bits
Frame memory
R1 G1 B1 R2 G2 B2 R3 G3 B3
Note 1: The data order is as follows, MSB=D7, LSB=D0 and picture data is MSB=Bit 3, LSB=Bit 0 for Red, Green and Blue data.
Note 2: 3-time transfer is used to transmit 1 pixel data with the 12-bit color depth information.
Note 3: ‘-‘ = Don't care - Can be set to '0' or '1'
V1.7
37
2009-12-04
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
