ST ST7735R - 9.8.11 18-Bit Parallel Interface (IM2, IM1, IM0=111); 9.8.12 18-bit data bus for 12-bitpixel (RGB 4-4-4-bit input), 4 K-Colors, 3 AH=03 h

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, Bit 3
-
G1, Bit 2
-
G1, Bit 1
-
G1, Bit 0
-
8080-series control pins
RESX
IM[2:0]
CSX
D/CX
“
““
“ 1”
””
”
“
““
“ 111”
””
”
WRX
RDX
“
““
“ 1”
””
”
D15
D14
D13
D12
D11
D10
D9
D8
Pixel n Pixel n+1
12 bits 12 bits
R1 G1 B1 R2 G2 B2 R3 G3 B3
18 bits
Frame memory
R1, Bit 3
0
R1, Bit 2
0
R1, Bit 1
1
R1, Bit 0
0
1
1
0
0
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
B1, Bit 3
B1, Bit 2
B1, Bit 1
B1, Bit 0
G2, Bit 3
G2, Bit 2
G2, Bit 1
G2, Bit 0
R2, Bit 3
R2, Bit 2
R2, Bit 1
R2, Bit 0
-
-
-
-
B2, Bit 3
B2, Bit 2
B2, Bit 1
B2, Bit 0
G3, Bit 3
G3, Bit 2
G3, Bit 1
G3, Bit 0
R3, Bit 3
R3, Bit 2
R3, Bit 1
R3, Bit 0
-
-
-
-
B3, Bit 3
B3, Bit 2
B3, Bit 1
B3, Bit 0
G4, Bit 3
G4, Bit 2
G4, Bit 1
G4, Bit 0
R4, Bit 3
R4, Bit 2
R4, Bit 1
R4, Bit 0
-
-
-
-
B4, Bit 3
B4, Bit 2
B4, Bit 1
B4, Bit 0
Pixel n+2 Pixel n+3
Look-Up Table for 4096 Color data mapping (12 bits to 18 bits)
-
-
D17
-
-
-
-
-
-
-
-
D16
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.