
ST7735R
V0.2
48
2009-08-05
9.8.11 18-Bit Parallel Interface (IM2, IM1, IM0=“111”)
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.
9.8.12 18-bit data bus for 12-bit/pixel (RGB 4-4-4-bit input), 4K-Colors, 3AH=“03h”
There is 1 pixel (3 sub-pixels) per 1 byte
-
-
-
-
G1, B it 3
-
G1, B it 2
-
G1, B it 1
-
G1, B it 0
-
8080-series control pins
R ES X
IM [2:0]
C SX
D /C X
“
“
“
“
1
”
”
”
”
“
“
“
“
111
”
”
”
”
W R X
R D X
“
“
“
“
1
”
”
”
”
D 15
D 14
D 13
D 12
D 11
D 10
D 9
D 8
P ixel n
Pixel n+1
12 bits
12 bits
R 1
G 1
B 1
R 2
G2
B 2
R 3
G3
B 3
18 bits
Fram e m em ory
R 1, B it 3
0
R 1, B it 2
0
R 1, B it 1
1
R 1, B it 0
0
1
1
0
0
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
-
-
-
-
B 1, B it 3
B 1, B it 2
B 1, B it 1
B 1, B it 0
G2, B it 3
G2, B it 2
G2, B it 1
G2, B it 0
R 2, B it 3
R 2, B it 2
R 2, B it 1
R 2, B it 0
-
-
-
-
B 2, B it 3
B 2, B it 2
B 2, B it 1
B 2, B it 0
G3, B it 3
G3, B it 2
G3, B it 1
G3, B it 0
R 3, B it 3
R 3, B it 2
R 3, B it 1
R 3, B it 0
-
-
-
-
B 3, B it 3
B 3, B it 2
B 3, B it 1
B 3, B it 0
G4, B it 3
G4, B it 2
G4, B it 1
G4, B it 0
R 4, B it 3
R 4, B it 2
R 4, B it 1
R 4, B it 0
-
-
-
-
B 4, B it 3
B 4, B it 2
B 4, B it 1
B 4, B it 0
Pixel n+2
Pixel n+3
Look-U p Table for 4096 C olor data m apping (12 bits to 18 bits)
-
-
D 17
-
-
-
-
-
-
-
-
D 16
Note 1: The data order is as follows, MSB=D11, LSB=D0 and picture data is MSB=Bit 3, LSB=Bit 0 for Red, Green and Blue data.
Note 2: 1-times transfer is used to transmit 1 pixel data with the 12-bit color depth information.
Содержание ST7735R
Страница 31: ...ST7735R V0 2 31 2009 08 05 Figure 9 3 2 6800 series parallel bus protocol write to register or display RAM ...
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