■ Outline
YGV629 (Function name: VC1, hereinafter described as VC1) is a VDP (Video Display Processor), which has a pattern rendering function by the sprite method according to the attribute settings and a direct line rendering function. Since various effect functions are included sufficiently in the sprite function and line rendering function, more effective presentation can be realized.
Since VC1 can display the bit map image with free display resolution, NTSC to SVGA, on any screen size of monitor, OSD display control for various display units can be made. And, VC1 includes a line buffer as a VRAM, so the system can be built with a little part. In addition, pattern memory can be connected directly, so that the amount of the control program can be reduced.

■ Features
□ Display Function
   Pattern rendering by the sprite method according to the attribute settings, and OSD display by the direct line rendering according to the attribute settings.
   Two display layers: Sprite display layer and Line display layer, up to 341 can be displayed. However, for the line display layer, up to 1 layer can be displayed.
   Alpha-blending function between layers.
□ Sprite Plane Function
   Sprite display of the field on the screen, up to 341
   Size 8×8 to 512×512 dots, independent selection (horizontal & vertical) possible. (in 8 dots)
   2, 16, 32, 64, or 256 palette colors in 64k colors, 64k-color natural picture display by 16-bit RGB
   Reverse function in right to left or up and down
   Scaling function
   Alpha-blending function in pixels
   Anti-aliasing function at the outline part
□ Line Rendering Function
   Line display of the field, up to 510
   Displayable color: 32768 colors (RGB555) or palette index (10-bit) designation
   Line width: 1 dot to 16 dots available (in dots)
   Anti-alias rendering available
□ Display Resolution
   Display monitor interface timing generation for NTSC, PAL, QVGA, Wide QVGA, VGA, Wide VGA, and SVGA
   Example of the supported resolution: 320×240, 400×240, 640×480, 800×480, 800×600, etc.
   External Synchronizing Function
□ External Memory
   Pattern memory up to 256M bits
   Mask ROMi, SRAM, and NOR type flash-memory connection
   Access timing settings by the period of the system clock
   Bus width 8-bit/16-bit selection
□ Others
   8-bit parallel interface and serial interface supported
   Indirect mapping to the built-in register and table through the access port.
   Analog RGB output and Digital RGB data output, with 6 bits DAC for each R,G, and B
   144 pin plastic LQFP, pin lead plating is Pb-free. (YGV629-VZ)
   CMOS, 3.3V single power supply