YGV638 Datasheet, PDF (1/26 Pages) YAMAHA CORPORATION – a pattern graphic controller with an on-chip VRAM and the ample drawing performance enables high-resolution animated GUIs on WVGA display panels.

YGV638
VC2
Video Controller 2
■ Overview
· YGV638 (hereinafter called “VC2”) is a pattern graphic controller with an on-chip VRAM and
the ample drawing performance enables high-resolution animated GUIs on WVGA display
panels.
· VC2’s multiple video ports allow direct handling of video signals from various sources: DVD
players, car navigation systems, rear view cameras, etc.
In addition, VC2 is capable of superimposing characters, lines, and even graphic icons or menu
screens (hereinafter called “sprite”) onto these videos.
· With conventional graphic controllers, complicated display control programs need to be
developed. With VC2, Sprites can be used to simplify the programs as all the controls of a Sprite
is available in its 12-byte attribute: position, scaling factor, transparency, color gradation, etc.
· VC2 integrates image de-compression engine (Yamaha proprietary algorithm) to dynamically
decompress the Sprite data stored in its external memory (Flash ROM etc.) achieving substantial
memory capacity savings.
VC2, with the features above, allows display systems for in-vehicle AV equipments, audio
equipments with display to be built with low-cost components.
YGV638 CATALOG
CATALOG No. LSI-4GV638A21
2011.03