Description:

Overview:

The ProMotion-AT3D chip is a high-performance integrated 3D, 2D, and video accelerator that offers superior performance and flexibility in a low-cost mainstream Windows accelerator. It combines an advanced 3D rendering engine, a powerful Windows graphical user interface accelerator engine, unique motion video acceleration hardware, and a high-precision DAC + clock generator in a single 208-pin PQFP package.

Key Features:

• Advanced 3D MMUI Accelerator
  • Fast 3D rendering with full hardware setup
  • On-chip D3D texture palette and fast DMA palette load
  • True divide-per-pixel perspective and modulated texture mapping
  • Full lighting and fog support
  • Full and compressed Z-buffer support
  • Precomputed MIPmap filtering and Gouraud shading
• Advanced upgrade port
  • Glueless 3Dfx Interactive THP interface
  • Upgrade to arcade-quality 3D hardware acceleration
• Fast 128-bit GUI engine
  • Optimized 24- and 32-bit truecolor
  • Source and destination transparency
• No-cost motion video
  • Smooth scaling and color conversion
  • 64-step bilinear filter with full line buffer
  • DirectDraw/DirectVideo/DCI support
  • Multiple independent video windows
  • Hardware occlusion without loss of quality
• VMI compatible video port
  • Glueless 7110/7111 support
  • Hardware MPEG support
  • Interpolated downscaling filter
• Integrated 175 MHz DAC & clock generator
  • Programmable HW gamma & color correction
  • Full 256x24-bit CLUT RAM
• BetterHalf cost-saving technology
• VESA standards: VAFC, DPMS, DDC 2.0B
• High throughput PCI v2.1 interface
• Programmable bi-endian support
• Flexible EDO DRAM interface (1, 1.5, 2, 3, 4 MB configurations)
• Programmable resolution up to 1600x1200
• Software drivers and BIOS compatibility with various platforms and major 3D APIs
• Flexible memory interface with BetterHalf cost-saving technology

The ProMotion-AT3D chip is designed to act as the central media hub in a feature-rich multimedia subsystem, offering seamless upgradability to arcade-quality 3D hardware acceleration with its THP upgrade port jointly developed with 3Dfx Interactive, Inc. Additionally, the chip supports various software drivers and BIOS, ensuring compatibility with different platforms and 3D APIs, while providing an upgrade path from mass-market to leading-edge performance through the 3Dfx Interactive THP interface.