sed1374 ETC-unknow, sed1374 Datasheet - Page 109
sed1374
Manufacturer Part Number
sed1374
Description
Sed1374 Embedded Memory Color Lcd Controller
Manufacturer
ETC-unknow
Datasheet
1.SED1374.pdf
(420 pages)
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Epson Research and Development
Vancouver Design Center
3.1.4 Eight Bit-Per-Pixel (256 Colors)
Programming Notes and Examples
Issue Date: 99/04/27
Red bit 2
Bit 7
Red bit 1
Figure 3-4: Pixel Storage for 8 Bpp (256 Colors) in One Byte of Display Buffer
Bit 6
In eight bit-per-pixel mode one byte of display buffer represents one pixel on the display.
At this color depth the read-modify-write cycles, required by the lessor pixel depths, are
eliminated.
Each byte of display memory consists of three pointers into the Look-Up Table. The three
most significant bits form an index into the first eight red values. The next three bits are an
index into the first eight green values. The last two bits form an index into the first four blue
Look-Up Table entries.
Red bit 0
Bit 5
Green bit 2
Bit 4
Green bit 1
Bit 3
Green bit 0
Bit 2
Blue bit 1
Bit 1
X26A-G-002-02
Blue bit 0
Bit 0
SED1374
Page 13
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