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Chapter 1
LCD controller display features
The LCD controller of the S3C2443 consists of the logic for transferring LCD image
data from a video buffer located in system memory to an external LCD driver. The
LCD controller supports monochrome, 2-bit per pixel (4-level gray scale) or 4-bit per
pixel (16-level gray scale) mode on a monochrome LCD, using a time-based dithering
algorithm and Frame Rate Control (FRC) method and it can be interfaced with a color
LCD panel at 8-bit per pixel (256-level color) and 12-bit per pixel (4096-level color)
for interfacing with STN LCD.
It can support 1-bit per pixel, 2-bit per pixel, 4-bit per pixel, and 8-bit per pixel for
interfacing with the palletized TFT color LCD panel, and 16-bit per pixel and 24-bit
per pixel for non-palletized true-color display. The LCD controller can be
programmed to support different requirements on the screen related to the number
of horizontal and vertical pixels, data line width for the data interface, interface
timing, and refresh rate.
STN LCD
displays
TFT LCD
displays
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4-bit dual scan, 4-bit single scan, and 8-bit single scan display type
Monochrome, 4 gray levels, and 16 gray levels
256 colors and 4096 colors for color STN LCD panel
Multiple screen size:
Typical actual screen size: 640 x 480, 320 x 240, 160 x 160, and others
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Maximum virtual screen size is 4Mbytes
–
Maximum virtual screen size in 256 color mode: 4096 x 1024, 2048 x 2048,
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1024 x 4096, and others
1, 2, 4 or 8-bpp (bit per pixel) palletized color displays
16, 24-bpp non-palletized true-color displays
Maximum 16M color TFT at 24bit per pixel mode
Multiple screen size:
Typical actual screen size: 640 x 480, 320 x 240, 160 x 160, and others
–
Maximum virtual screen size: 4Mbytes
–
Maximum virtual screen size in 64K color mode: 2048 x 1024, and others
–
2 overlay windows for TFT
49
ConnectCore 9M 2443 & Wi-9M 2443 Hardware Reference
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