Key features •CMOS 0.18µm technology •Display resolutions up to 1280 x 768 •6 layers ofoverlay display (Windows) •Alpha Plane•Digital Video input •Video Scaler (up/down scaling)•I
PRODUCT OVERVIEW GRAPHICS SOLUTIONS
MB86294 ‘Coral B’
MB86294 ‘Coral B’adds video input to the features of‘Coral Q’and is available in a BGA package.The video input
is capable ofaccepting TV tuner,DVD player or
industrial camera
signals in PAL or NTSC video formats (ITU656 format).
Video pictures ofdiverse resolution and frame frequency rate,
in either progressive or interlaced modes,can be grabbed,
scaled and displayed picture-in-picture.The latest automotive and consumer appliance screens areincreasing resolution to achieve better readability.They
demand improved picture quality to match,for example,DVD
quality.In order to meet these demands,‘Coral B’integrates a
new video input up-scaling facility,which allows a full-screen
mode ofmultimedia pictures at large resolutions to be
displayed.Both up-scaling and down-scaling can be set
independently in horizontal and vertical directions in pixel or
line resolutions.Using the Alpha-map features ofthe ‘Coral’architecture,avideo picture can be blended smoothly together with rendered
graphics.The alpha map can be freely assigned to any ofthe
six layers and allows the assignment of8-bits per pixel,
enabling each pixel to be mixed to control transparency to a
very high degree ofaccuracy.In addition,all layers can be
blended at a fixed ratio of256 levels.To enhance bit BLT (Bit Block Transfers) operations,thisfeature can now be combined with alpha-mapping.With this
function,any bitmap can be copied from any source location
(CPU- or Video-memory) onto a layer with an independent
alpha-map.Software routines that make use ofthis function
can greatly improve image quality (for example anti-aliasing
over a moving background).
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MD[63:0]MA[14:0] MB86294 offers video input with upscaling,in addition to the new family features. 2 C interface•Geometry processor •RGB digital output (8-bit x 3) •RGB analogue output•Includes various kinds of2D/3D graphic accelerationfunctions •Built-in alpha blending,anti-aliasing and chroma-keying •External SDRAM or FCRAM
TM interface @ 133MHz forup to 64MB graphic memory •Configurable CPU-interface for embedded CPUs/MCUs •Supply voltage 3.3V (I/O),1.8V (Internal) •BGA-256 package •Temperature range -40 to +85°C
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