Description:

Overview

The CL-GD5480 is a high-performance, cost-effective VisualMedia solution that combines graphics, animation, better-than-TV quality full-screen video, and software 3D acceleration in an integrated single-chip device. The chip is part of the Cirrus Logic Alpine family and interfaces with high-speed SGRAM frame buffer.

Key Features:

• 64-bit high-bandwidth synchronous DRAM interface with 800 Mbytes/sec. peak memory bandwidth
• Microsoft PC97-compliant
• Video conferencing advantages
  • Glueless digital camera interface with direct support of CCIR 6:5:6 format
  • Dual-hardware video window for local and remote viewing
  • Optional PCI bus master conversion to YUV 4:2:0 for off-loading CPU during local view transmission
  • Remote and local view mirror image and vertical flip options
  • Continuous XY filtered downscaling for video conference display size
• Intel Intercast support
  • Luminance-only video capture mode for efficient VBI data processing
  • Simultaneous capture and transfer of VBI data to system memory while TV picture is displayed in the video window
  • PCI bus master write operation for fast transfer of VBI data to system memory without CPU intervention
• MPEG playback assist for native MPEG format of planar YUV 4:2:0, freeing CPU of conversion burden
• 3 x 8 palette LUT with independent RGB addressing for color adjustment (such as gamma correction) in 15-, 16-, and 24-bpp modes
• Packaged in a 208-pin PQFP with industry-standard V-Port for interfacing directly to various video input devices
• GPIO, I2C bus interfaces, and V-Port for glueless connection to external devices
• Compatible with the Cirrus Logic Alpine family, featuring stable software drivers, extensive software QA process, and best language localization support
• VPM (video port manager) interface for easy peripheral application software development

Benefits:

• Enhances graphics performance, especially for text
• Faster screen refresh performance for higher resolutions and monitor refresh rate support
• Increases performance of video capture-to-system memory transfers for multiple applications
• Provides ample interface speed margin compared with available and next-generation core logic chipsets
• Interfaces easily to high-performance core logic chipsets
• Optimizes display page-flipping support for outstanding games animation performance
• Accelerates software 3D performance
• Maintains high-quality video over a wide range of sizing options
• Accelerates MPEG-2 native codec playback and capture
• Allows display of video conferencing local view
• Allows concurrent operations and independent graphics/video color depths for efficient memory/bandwidth usage
• Higher speed and performance margin with low-power operation
• Full control and access to advanced manufacturing processes
• Eliminates the need for a separate video frame buffer, lowering overall system cost
• Provides a low-cost control interface for applications such as TV tuners, DVD drives, and digital cameras
• Lower overall system implementation cost
• Extensive QA process and maintenance program ensures high quality and maximum customer satisfaction
• Based on production-proven, high-quality software
• Complete utility localization for 21 languages
• Easy connection to external video devices
• Allows multiple memory configurations and vendors
• Compatible with installed base of systems and software