Samsung S3C2451X User Manual page 542

LCD CONTROLLER
FEATURES
The features of LCD controller are:
• Bus Interface
• Video Output Interface
• PIP (OSD) function
• Source format
• Configurable Burst Length
• Palette/Look-up table
• Soft Scrolling
• Virtual Screen
• Transparent Overlay
• Color Key (Chroma Key)
• Duble Buffering
• Dithering
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
22-2
Specifications and information herein are subject to change without notice.
32-bit AMBA AHB Master /AHB Slave
RGB Parallel I/F (24-bit)
RGB Serial I/F (8-bit)
i80-System I/F (18-bit)
Supports X,Y indexed position
Supports 4-bit Alpha blending :
Plane / Pixel(only supports 24-bit 8:8:8 mode)
Window 0 :
Supports 1, 2, 4 or 8-bpp palletized color
Supports 16, 18 or 24-bpp non-palletized color
Window 1 :
Supports 1, 2, 4 or 8-bpp palletized color
Supports 16, 18 or 24-bpp non-palletized color
Programable 4/ 8/ 16 Burst DMA
256 x 25(ARGB) bits palette (2ea for Window 0, Window1)
Horizontal : 1 Byte resloution
Vertical : 1 pixel resolution
Virtual image can has up to 1Mbyte image size.
Support Transparent Overlay
Support Color key function
Frame buffer alternating by one control bit
Patented 4x4 dither matrix implemetation
S3C2451X RISC MICROPROCESSOR