VT8601 Via, VT8601 Datasheet - Page 10

• Manufacturer Part Number: VT8601
• Description: Slot-1 / Socket-370 PCI North Bridge
• Manufacturer: Via

Revision 1.3 September 8, 1999
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General Graphic Capabilities
Graphics Performance
High Performance rCADE3D™ Accelerator
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64-bit Single Cycle 2D/3D Graphics Engine
Supports 2 to 8 Mbytes of Frame Buffer
Real Time DVD MPEG-2 and AC-3 Playback
Video Processor
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Integrated 24-bit 230MHz True Color DAC
Extended Screen Resolutions up to 1600x1200
Extended Text Modes 80 or 132 columns by 25/30/43/60 rows
DirectX 6 and OpenGL ICD API
Sustained 1M polygons/second and 100M pixels/second
30fps DVD playback of 9.8Mbps MPEG-2 video with 30% headroom
Host Based AC-3 decode at only 8% utilization
32 entry command queue, 32 entry data queue
4Kbyte texture cache with over 90% hit rates
Pipelined Single Cycle Setup/Texturing/Rendering Engines
DirectDraw™ acceleration
Multiple buffering and page flipping
Setup Engine
32-bit IEEE floating point input data
Slope and vertex calculations
Back facing triangle culling
1/16 sub-pixel positioning
Rendering Engine
High performance single pass execution
Diffused and specula lighting
Gouraud and flat shading
Anti-aliasing including edge, scene, and super-sampling
OpenGL compliant blending for fog and depth-cueing
16-bit Z-buffer
8/16/32 bit per pixel color formats
Texturing Engine
1/2/4/8-bits per pixel compact palletized textures
16/32-bits per pixel quality non-palletized textures
Pallet formats in ARGB 565, 1555, or 444
Tri-linear, bi-linear, and point-sampled filtering
Mip-mapping with multiple Level-Of-Detail (LOD) calculations and perspective correction
Color keying for translucency
2D GUI Engine
8/15/16/24/32-bits per pixel color formats
256 Raster Operations (ROPs)
Accelerated drawing: BitBLTs, lines, polygons, fills, patterns, clipping, bit masking
Panning, scrolling, clipping, color expansion, sprites
32x32 and 64x64 Hardware Cursor
DOS graphics and text modes
2
C Serial Interface
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VT8601 Apollo ProMedia
Features