STV3550 datasheet(50/144 Pages) STMICROELECTRONICS

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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)

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Filling

●

Transfer with filtering (nibble to byte, parity check, ...)

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

Teletext 1.5

●

40-character width by 26-character (12 x 10) rows

Note:

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)

Figure 35: 2D Block Move Flowchart

Width

Height

Width

Repeat

Height

Times

Memory Mapping

Width

Repeat

Height

Times

32-bit

Memory

Display Screen

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Source

Dest

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