STV3550 Datasheet, PDF (50/144 Pages) STMicroelectronics – LCD and Matrix Display TV Processor

STV3550
Graphics Functional Description
There are different types of processes that must also be selected:
● Read/Write (with or without filtered Data compression)
● Parity Checksum
● Simple transfer
● Color key based transfer: data transfered if different from a specified color (i.e. background
masking)
● Filling
● Transfer with filtering (nibble to byte, parity check, ...)
Figure 35: 2D Block Move Flowchart
Width
Height
Memory
Repeat _Width
Height
Times _{Skip_}
Source
32-bit
Repeat _Width
Height
Times Skip_
Dest
Display Screen
Memory Mapping
4.3 Graphic Application Examples
In addition to the menus required for the user interface, certain graphic applications are supported
by the STV3550.
4.3.1
Note:
Teletext 1.5
● 40-character width by 26-character (12 x 10) rows
Specific font formats can be required to fit with the panel resolution.
● 8 fully-defined colors for both foreground and background planes
● Mix mode (background color is fully-transparent to video)
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