Hardware assist for YUV data format conversion to software MPEG decoder

  • US 6,353,440 B1
  • Filed: 10/29/1999
  • Issued: 03/05/2002
  • Est. Priority Date: 03/21/1996
  • Status: Expired due to Term
First Claim
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1. A display controller for receiving video data from a data bus in a component YUV format and storing the video data to a display memory in a pixel video format, the display controller comprising:

  • a bus interface, coupled to the data bus, for receiving video data in a component YUV format and corresponding video data addresses within a predetermined address range;

    a display memory controller, coupled to said bus interface, for receiving video data in a component YUV format in contiguous successive streams of luminance and chrominance difference data and corresponding video data addresses within a predetermined address range and for storing said video data by directing separate luminance and chrominance difference data into predetermined memory portions according to a predetermined memory aperture so as to store said video data in a pixel video format in a display memory; and

    a memory configuration-register coupled to the bus interface and the display memory controller and configured to set addresses for the predetermined memory aperture.

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