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LCD CONTROLLER
MEMORY DATA FORMAT ( STN, BSWP=0 ) (CONTINUED)
In 4-level gray mode, 2 bits of video data correspond to 1 pixel.
In 16-level gray mode, 4 bits of video data correspond to 1 pixel.
In 256 level color mode, 8 bits (3 bits of red, 3 bits of green, and 2 bits of blue) of video data correspond to 1
pixel. The color data format in a byte is as follows:
Bit [ 7:5 ]
Bit [ 4:2 ]
Red
Green
In 4096 level color mode :
Packed 12 BPP Color mode
12 bits (4 bits of red, 4 bits of green, 4 bits of blue) of video data correspond to 1 pixel. The following table shows
color data format in words: (Video data must reside at 3 word boundaries (8 pixel), as follows)
RGB order
DATA
[31:28]
Word #1
Red( 1)
Word #2
Blue(3)
Word #3
Green(6)
Unpacked 12 BPP Color mode
12 bits (4 bits of red, 4 bits of green, 4 bits of blue) of video data correspond to 1 pixel. The following table shows
color data format in words:
RGB order
DATA
[31:28]
Word #1
-
Word #2
-
Word #3
-
15-10
Bit[1:0]
Blue
[27:24]
[23:20]
Green(1)
Blue( 1)
Red(4)
Green(4)
Blue(6)
Red(7)
[27:24]
[23:20]
Red( 1)
Green(1)
Red( 3)
Green(3)
Red( 5)
Green(5)
[19:16]
[15:12]
Red( 2)
Green( 2)
Blue(4)
Red(5)
Green(7)
Blue(7)
[19:16]
[15:12]
Blue( 1)
-
Blue( 3)
-
Blue( 5)
-
SC32442B RISC MICROPROCESSOR
[11:8]
[7:4]
Blue( 2)
Red(3)
Green(5)
Blue(5)
Red(8)
Green(8)
[11:8]
[7:4]
Red( 2)
Green( 2)
Red( 4)
Green( 4)
Red( 6)
Green( 6)
[3:0]
Green(3)
Red(6)
Blue(8)
[3:0]
Blue( 2)
Blue( 4)
Blue( 6)
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