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1 2 kdv 
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MPEG-2 Decoder User Guide
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\begin_layout Author
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Koenraad De Vleeschauwer
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kdv@kdvelectronics.eu
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Copyright Notice
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Copyright
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copyright
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2007-2009, Koenraad De Vleeschauwer.
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\begin_layout Standard
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Redistribution and use in source (\SpecialChar LyX
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 format) and `compiled' forms (PDF, PostScript
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, HTML, RTF, etc.), with or without modification, are permitted provided
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 that the following conditions are met:
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Redistributions of source code (\SpecialChar LyX
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 format) must retain the above copyright
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 notice, this list of conditions and the following disclaimer.
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Redistributions in compiled form (transformed to other DTDs, converted to
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 PDF, PostScript, HTML, RTF, and other formats) must reproduce the above
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 copyright notice, this list of conditions and the following disclaimer
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 in the documentation and/or other materials provided with the distribution.
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\end_layout
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\begin_layout Enumerate
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The name of the author may not be used to endorse or promote products derived
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 from this documentation without specific prior written permission.
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This documentation is provided by the author
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as is" and any express or implied warranties, including, but not limited
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 to, the implied warranties of merchantability and fitness for a particular
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 purpose are disclaimed.
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 In no event shall the author be liable for any direct, indirect, incidental,
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 special, exemplary, or consequential damages (including, but not limited
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 to, procurement of substitute goods or services; loss of use, data, or
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 profits; or business interruption) however caused and on any theory of
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 liability, whether in contract, strict liability, or tort (including negligence
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 or otherwise) arising in any way out of the use of this documentation,
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 even if advised of the possibility of such damage.
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\end_layout
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\begin_layout Section*
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MPEG-2 License Notice
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\begin_layout Standard
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Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
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 are subject to royalty fees to patent holders.
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 Many of these patents are general enough such that they are unavoidable
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 regardless of implementation design.
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MPEG-2 intermediate product.
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 Use of this product in any manner that complies with the MPEG-2 standard
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 is expressly prohibited without a license under applicable patents in the
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 MPEG-2 patent portfolio, which license is available from MPEG LA, L.L.C.,
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 250 Stelle Street, suite 300, Denver, Colorado 80206.
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name "cha:Processor-Interface"
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Processor Interface
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An MPEG2 decoder, implemented in Verilog, is presented.
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 Chapter
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reference "cha:Processor-Interface"
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\end_inset
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 describes the decoder for the software engineer who wishes to write a device
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 driver.
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Decoder Block Diagram
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Decoder Block Diagram
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Figure
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reference "fig:Decoder-Block-Diagram"
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\end_inset
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 shows the MPEG2 decoder block diagram.
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 An external source such as a DVB tuner or DVD drive provides an MPEG2 stream.
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 The video elementary stream is extracted and sent to the decoder.
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 The
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\emph on
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video buffer
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\emph default
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 acts as a fifo between the incoming MPEG2 video stream and the variable
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 length decoder.
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 The video buffer evens out temporary differences between the bitrate of
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 the incoming MPEG2 bitstream and the bitrate at which the decoder parses
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 the bitstream.
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\end_layout
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\begin_layout Standard
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The MPEG2 codec is a variable length codec; codewords which occur often
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 occupy less bits than codewords which occur only rarely.
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\emph on
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Getbits
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\emph default
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 provides a sliding window over the incoming stream.
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 As the codewords have a variable length, the sliding window moves forward
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 a variable amount of bits at a time.
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\end_layout
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\begin_layout Standard
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\emph on
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Variable length decoding
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\emph default
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 does the actual parsing of the bitstream.
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 Variable length decoding stores stream parameters such as horizontal and
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 vertical resolution, and produces run/length values and motion vectors.
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 Run/length values and motion vectors are different ways of describing an
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 image.
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 The run/length values describe an image as compressed data contained within
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 the bitstream.
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 The motion vectors describe an image as a mosaic of already decoded images.
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\end_layout
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\emph on
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Run-length decoding, inverse quantizing
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\emph default
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 and
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\emph on
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inverse discrete cosine transform
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\emph default
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 decompress the run/length values.
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\end_layout
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\begin_layout Standard
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\emph on
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Motion compensation
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\emph default
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 retrieves already decoded images from memory and applies the motion vector
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 translations.
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\end_layout
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\begin_layout Standard
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The reconstructed image is the sum of the decompressed run/length values
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 and translated pieces of already decoded images.
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 The reconstructed image is stored in the
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\shape italic
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frame store
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\shape default
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 for later display and reference.
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\end_layout
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\begin_layout Standard
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The frame store receives requests to store and retrieve pixels from three
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 different sources:
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\end_layout
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\begin_layout Itemize
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\emph on
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motion compensation
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\emph default
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, which writes reconstructed image frames to memory
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\end_layout
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\begin_layout Itemize
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\emph on
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chroma resampling
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\emph default
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, which reads reconstructed image frames from memory for displaying
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\end_layout
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writes to the
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\emph on
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\emph default
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, under software control.
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\end_layout
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\begin_layout Standard
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Some of these blocks have multiple accesses to the frame store.
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 Within the MPEG2 decoder a total of six memory read or write requests may
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 occur simultaneously.
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 The frame store prioritizes these requests and serializes them into a single
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 stream of memory read/write requests, which is sent to the memory controller.
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\end_layout
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\begin_layout Standard
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The
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\emph on
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memory controller
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\emph default
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 is external to the MPEG2 decoder.
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 The memory controller handles the low-level details of interfacing with
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 the memory chips.
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 If memory is static RAM, interfacing requires little more than a buffer;
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 dynamic memory requires a more complex controller.
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\end_layout
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\begin_layout Standard
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The MPEG2 decoder accepts 4:2:0 format video, in which color and brightness
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 information have a different resolution: color information (chrominance)
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 is sent at half the horizontal and half the vertical resolution of brightness
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 information (luminance).
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 This makes sense because the human eye uses different mechanisms to perceive
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 color and brightness; and the different mechanisms used have different
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 sensitivities.
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\end_layout
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\begin_layout Standard
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Sending color information at half the horizontal and half the vertical resolutio
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n of brightness information implies the reconstructed image in the frame
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 store has only one color pixel for every four brightness pixels.
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 Assigning the same color information to the four pixels of brightness informati
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on would result in a chunky image.
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\emph on
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Chroma resampling
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\emph default
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 does horizontal and vertical interpolation of the color information, resulting
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 in a smooth color image.
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\end_layout
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\begin_layout Standard
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A
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\emph on
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dot clock
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\emph default
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 marks the frequency at which pixels are sent to the display.
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 The dot clock is external to the MPEG2 decoder and can be either free running
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 or synchronized to another clock.
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\end_layout
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\begin_layout Standard
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The
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\emph on
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video synchronization generator
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\emph default
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 counts pixels, lines and image frames at the dot clock frequency.
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 At any given moment, the video synchronization generator knows the horizontal
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 and vertical coordinate of the pixel to be displayed.
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\end_layout
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\begin_layout Standard
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The pixels generated in chroma resampling and the coordinates generated
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 by the video synchronization generator are joined in the
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\emph on
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mixer
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\emph default
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.
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 The result is a stream of pixels, at the current horizontal/vertical coordinate
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, at the dot clock frequency.
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\end_layout
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\begin_layout Standard
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At this point the
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\emph on
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on-screen display
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\emph default
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 is added.
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 The on-screen display has the same resolution as the video and uses a 256-color
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 palette.
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 Software can choose to put the on-screen display on top, completely hiding
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 the video; or to blend on-screen display and video, as if they were two
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 translucent glass plates.
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\end_layout
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\begin_layout Standard
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The MPEG2 decoder works with chrominance (color) and luminance (brightness)
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 information throughout.
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 The final step is converting chrominance and luminance to red, green and
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 blue in
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\emph on
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yuv2rgb
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\emph default
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.
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 The red, green and blue information is the output of the decoder.
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\end_layout
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\begin_layout Section
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Ports
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\end_layout
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\begin_layout Standard
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Table
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\begin_inset CommandInset ref
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reference "tab:Ports"
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\end_inset
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 lists MPEG2 decoder input/output ports.
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925
926
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971 
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1073 
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1129
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1131
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1142
1143 
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1151
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1171 
 
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1175 
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1180
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1188 
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1194 
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1211
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1214 
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I
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\end_inset
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1221 
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1226 
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\end_layout
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1231
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1233
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1244
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1260 
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1267 
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1269 
\end_inset
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1271
1272 
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1273 
 
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1275 
 
1276 
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1277 
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1278 
\end_layout
1279 
 
1280 
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1281
1282
1283
1284
1285 
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1286 
 
1287 
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1288 
 
1289 
\family typewriter
1290 
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1291 
\end_layout
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1295
1296 
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\end_inset
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1304
1305 
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1310 
 
1311 
\end_inset
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1313
1314 
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1315 
 
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1317 
O
1318 
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1320 
\end_inset
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1322
1323 
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1324 
 
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\begin_layout Plain Layout
1326 
 
1327 
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1328 
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\end_layout
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1333
1334
1335
1336 
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\end_layout
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1347 
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1350 
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1351 
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1355
1356 
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1357 
 
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1359 
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1360 
\end_layout
1361 
 
1362 
\end_inset
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1364
1365 
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1366 
 
1367 
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1368 
O
1369 
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1370 
 
1371 
\end_inset
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1373
1374 
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1375 
 
1376 
\begin_layout Plain Layout
1377 
 
1378 
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1379 
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1380 
\end_layout
1381 
 
1382 
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1383
1384
1385
1386
1387 
\begin_inset Text
1388 
 
1389 
\begin_layout Plain Layout
1390 
 
1391 
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1392 
r
1393 
\end_layout
1394 
 
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1396
1397
1398 
\begin_inset Text
1399 
 
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\begin_layout Plain Layout
1401 
8
1402 
\end_layout
1403 
 
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\end_inset
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1406
1407 
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1411 
\end_layout
1412 
 
1413 
\end_inset
1414
1415
1416 
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1417 
 
1418 
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1419 
O
1420 
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1421 
 
1422 
\end_inset
1423
1424
1425 
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1426 
 
1427 
\begin_layout Plain Layout
1428 
 
1429 
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1430 
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1431 
\end_layout
1432 
 
1433 
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1434
1435
1436
1437
1438 
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1439 
 
1440 
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1441 
 
1442 
\family typewriter
1443 
g
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\end_layout
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1448
1449 
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1452 
8
1453 
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1457
1458 
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1459 
 
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1461 
Green
1462 
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1463 
 
1464 
\end_inset
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1466
1467 
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1468 
 
1469 
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1470 
O
1471 
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1472 
 
1473 
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1475
1476 
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1477 
 
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1479 
 
1480 
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1481 
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1483 
 
1484 
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1485
1486
1487
1488
1489 
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1490 
 
1491 
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1492 
 
1493 
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1494 
b
1495 
\end_layout
1496 
 
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1499
1500 
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1501 
 
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1508
1509 
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1517
1518 
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1519 
 
1520 
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O
1522 
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1524 
\end_inset
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1526
1527 
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1528 
 
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1532 
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1537
1538
1539
1540 
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1550
1551 
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1559
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1568
1569 
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O
1573 
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1577
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1588
1589
1590
1591 
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1592 
 
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1594 
 
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1596 
u
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1601
1602 
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1610
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1628
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1640
1641
1642 
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1652
1653 
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1668 
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1670
1671 
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1675 
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1679
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1692
1693 
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1703
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1721
1722 
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1726 
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\end_inset
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1730
1731 
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1743
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1754
1755 
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1760 
 
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1763
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1773 
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1778 
 
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1781
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1783 
 
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1792
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1795 
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1796 
 
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1798 
 
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1800 
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1805
1806 
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1809 
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\end_inset
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1814
1815 
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1816 
 
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1818 
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1820 
 
1821 
\end_inset
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1823
1824 
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1825 
 
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1827 
O
1828 
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1829 
 
1830 
\end_inset
1831
1832
1833 
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1834 
 
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1836 
 
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1843
1844
1845
1846 
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1847 
 
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1849 
 
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1851 
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1856
1857 
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1858 
 
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1860 
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1865
1866 
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1867 
 
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\end_inset
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1874
1875 
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1876 
 
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1878 
O
1879 
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1880 
 
1881 
\end_inset
1882
1883
1884 
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1885 
 
1886 
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1887 
 
1888 
\family typewriter
1889 
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1890 
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1891 
 
1892 
\end_inset
1893
1894
1895
1896
1897 
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1898 
 
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1901 
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1907
1908 
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1909 
 
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1911 
2
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1913 
 
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1916
1917 
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1918 
 
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1921 
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1922 
 
1923 
\end_inset
1924
1925
1926 
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1927 
 
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1929 
O
1930 
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1931 
 
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\end_inset
1933
1934
1935 
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1936 
 
1937 
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1938 
 
1939 
\family typewriter
1940 
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1941 
\end_layout
1942 
 
1943 
\end_inset
1944
1945
1946
1947
1948 
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1949 
 
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1951 
 
1952 
\family typewriter
1953 
mem_req_rd_addr
1954 
\end_layout
1955 
 
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\end_inset
1957
1958
1959 
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1960 
 
1961 
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1962 
22
1963 
\end_layout
1964 
 
1965 
\end_inset
1966
1967
1968 
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1969 
 
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1971 
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1972 
\end_layout
1973 
 
1974 
\end_inset
1975
1976
1977 
\begin_inset Text
1978 
 
1979 
\begin_layout Plain Layout
1980 
O
1981 
\end_layout
1982 
 
1983 
\end_inset
1984
1985
1986 
\begin_inset Text
1987 
 
1988 
\begin_layout Plain Layout
1989 
 
1990 
\family typewriter
1991 
mem_clk
1992 
\end_layout
1993 
 
1994 
\end_inset
1995
1996
1997
1998
1999 
\begin_inset Text
2000 
 
2001 
\begin_layout Plain Layout
2002 
 
2003 
\family typewriter
2004 
mem_req_rd_dta
2005 
\end_layout
2006 
 
2007 
\end_inset
2008
2009
2010 
\begin_inset Text
2011 
 
2012 
\begin_layout Plain Layout
2013 
64
2014 
\end_layout
2015 
 
2016 
\end_inset
2017
2018
2019 
\begin_inset Text
2020 
 
2021 
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2022 
Memory request data
2023 
\end_layout
2024 
 
2025 
\end_inset
2026
2027
2028 
\begin_inset Text
2029 
 
2030 
\begin_layout Plain Layout
2031 
O
2032 
\end_layout
2033 
 
2034 
\end_inset
2035
2036
2037 
\begin_inset Text
2038 
 
2039 
\begin_layout Plain Layout
2040 
 
2041 
\family typewriter
2042 
mem_clk
2043 
\end_layout
2044 
 
2045 
\end_inset
2046
2047
2048
2049
2050 
\begin_inset Text
2051 
 
2052 
\begin_layout Plain Layout
2053 
 
2054 
\family typewriter
2055 
mem_req_rd_en
2056 
\end_layout
2057 
 
2058 
\end_inset
2059
2060
2061 
\begin_inset Text
2062 
 
2063 
\begin_layout Plain Layout
2064 
1
2065 
\end_layout
2066 
 
2067 
\end_inset
2068
2069
2070 
\begin_inset Text
2071 
 
2072 
\begin_layout Plain Layout
2073 
Memory request read enable
2074 
\end_layout
2075 
 
2076 
\end_inset
2077
2078
2079 
\begin_inset Text
2080 
 
2081 
\begin_layout Plain Layout
2082 
I
2083 
\end_layout
2084 
 
2085 
\end_inset
2086
2087
2088 
\begin_inset Text
2089 
 
2090 
\begin_layout Plain Layout
2091 
 
2092 
\family typewriter
2093 
mem_clk
2094 
\end_layout
2095 
 
2096 
\end_inset
2097
2098
2099
2100
2101 
\begin_inset Text
2102 
 
2103 
\begin_layout Plain Layout
2104 
 
2105 
\family typewriter
2106 
mem_req_rd_valid
2107 
\end_layout
2108 
 
2109 
\end_inset
2110
2111
2112 
\begin_inset Text
2113 
 
2114 
\begin_layout Plain Layout
2115 
1
2116 
\end_layout
2117 
 
2118 
\end_inset
2119
2120
2121 
\begin_inset Text
2122 
 
2123 
\begin_layout Plain Layout
2124 
Memory request valid
2125 
\end_layout
2126 
 
2127 
\end_inset
2128
2129
2130 
\begin_inset Text
2131 
 
2132 
\begin_layout Plain Layout
2133 
O
2134 
\end_layout
2135 
 
2136 
\end_inset
2137
2138
2139 
\begin_inset Text
2140 
 
2141 
\begin_layout Plain Layout
2142 
 
2143 
\family typewriter
2144 
mem_clk
2145 
\end_layout
2146 
 
2147 
\end_inset
2148
2149
2150
2151
2152 
\begin_inset Text
2153 
 
2154 
\begin_layout Plain Layout
2155 
 
2156 
\family typewriter
2157 
mem_res_wr_dta
2158 
\end_layout
2159 
 
2160 
\end_inset
2161
2162
2163 
\begin_inset Text
2164 
 
2165 
\begin_layout Plain Layout
2166 
64
2167 
\end_layout
2168 
 
2169 
\end_inset
2170
2171
2172 
\begin_inset Text
2173 
 
2174 
\begin_layout Plain Layout
2175 
Memory response data
2176 
\end_layout
2177 
 
2178 
\end_inset
2179
2180
2181 
\begin_inset Text
2182 
 
2183 
\begin_layout Plain Layout
2184 
I
2185 
\end_layout
2186 
 
2187 
\end_inset
2188
2189
2190 
\begin_inset Text
2191 
 
2192 
\begin_layout Plain Layout
2193 
 
2194 
\family typewriter
2195 
mem_clk
2196 
\end_layout
2197 
 
2198 
\end_inset
2199
2200
2201
2202
2203 
\begin_inset Text
2204 
 
2205 
\begin_layout Plain Layout
2206 
 
2207 
\family typewriter
2208 
mem_res_wr_en
2209 
\end_layout
2210 
 
2211 
\end_inset
2212
2213
2214 
\begin_inset Text
2215 
 
2216 
\begin_layout Plain Layout
2217 
1
2218 
\end_layout
2219 
 
2220 
\end_inset
2221
2222
2223 
\begin_inset Text
2224 
 
2225 
\begin_layout Plain Layout
2226 
Memory response enable
2227 
\end_layout
2228 
 
2229 
\end_inset
2230
2231
2232 
\begin_inset Text
2233 
 
2234 
\begin_layout Plain Layout
2235 
I
2236 
\end_layout
2237 
 
2238 
\end_inset
2239
2240
2241 
\begin_inset Text
2242 
 
2243 
\begin_layout Plain Layout
2244 
 
2245 
\family typewriter
2246 
mem_clk
2247 
\end_layout
2248 
 
2249 
\end_inset
2250
2251
2252
2253
2254 
\begin_inset Text
2255 
 
2256 
\begin_layout Plain Layout
2257 
 
2258 
\family typewriter
2259 
mem_res_wr_almost_full
2260 
\end_layout
2261 
 
2262 
\end_inset
2263
2264
2265 
\begin_inset Text
2266 
 
2267 
\begin_layout Plain Layout
2268 
1
2269 
\end_layout
2270 
 
2271 
\end_inset
2272
2273
2274 
\begin_inset Text
2275 
 
2276 
\begin_layout Plain Layout
2277 
Memory response almost full
2278 
\end_layout
2279 
 
2280 
\end_inset
2281
2282
2283 
\begin_inset Text
2284 
 
2285 
\begin_layout Plain Layout
2286 
O
2287 
\end_layout
2288 
 
2289 
\end_inset
2290
2291
2292 
\begin_inset Text
2293 
 
2294 
\begin_layout Plain Layout
2295 
 
2296 
\family typewriter
2297 
mem_clk
2298 
\end_layout
2299 
 
2300 
\end_inset
2301
2302
2303
2304
2305 
\begin_inset Text
2306 
 
2307 
\begin_layout Plain Layout
2308 
 
2309 
\family typewriter
2310 
testpoint_dip_en
2311 
\end_layout
2312 
 
2313 
\end_inset
2314
2315
2316 
\begin_inset Text
2317 
 
2318 
\begin_layout Plain Layout
2319 
1
2320 
\end_layout
2321 
 
2322 
\end_inset
2323
2324
2325 
\begin_inset Text
2326 
 
2327 
\begin_layout Plain Layout
2328 
Testpoint dip switches enable
2329 
\end_layout
2330 
 
2331 
\end_inset
2332
2333
2334 
\begin_inset Text
2335 
 
2336 
\begin_layout Plain Layout
2337 
I
2338 
\end_layout
2339 
 
2340 
\end_inset
2341
2342
2343 
\begin_inset Text
2344 
 
2345 
\begin_layout Plain Layout
2346 
-
2347 
\end_layout
2348 
 
2349 
\end_inset
2350
2351
2352
2353
2354 
\begin_inset Text
2355 
 
2356 
\begin_layout Plain Layout
2357 
 
2358 
\family typewriter
2359 
testpoint_dip
2360 
\end_layout
2361 
 
2362 
\end_inset
2363
2364
2365 
\begin_inset Text
2366 
 
2367 
\begin_layout Plain Layout
2368 
4
2369 
\end_layout
2370 
 
2371 
\end_inset
2372
2373
2374 
\begin_inset Text
2375 
 
2376 
\begin_layout Plain Layout
2377 
Testpoint dip switches
2378 
\end_layout
2379 
 
2380 
\end_inset
2381
2382
2383 
\begin_inset Text
2384 
 
2385 
\begin_layout Plain Layout
2386 
I
2387 
\end_layout
2388 
 
2389 
\end_inset
2390
2391
2392 
\begin_inset Text
2393 
 
2394 
\begin_layout Plain Layout
2395 
-
2396 
\end_layout
2397 
 
2398 
\end_inset
2399
2400
2401
2402
2403 
\begin_inset Text
2404 
 
2405 
\begin_layout Plain Layout
2406 
 
2407 
\family typewriter
2408 
testpoint
2409 
\end_layout
2410 
 
2411 
\end_inset
2412
2413
2414 
\begin_inset Text
2415 
 
2416 
\begin_layout Plain Layout
2417 
34
2418 
\end_layout
2419 
 
2420 
\end_inset
2421
2422
2423 
\begin_inset Text
2424 
 
2425 
\begin_layout Plain Layout
2426 
Logical analyzer test point
2427 
\end_layout
2428 
 
2429 
\end_inset
2430
2431
2432 
\begin_inset Text
2433 
 
2434 
\begin_layout Plain Layout
2435 
O
2436 
\end_layout
2437 
 
2438 
\end_inset
2439
2440
2441 
\begin_inset Text
2442 
 
2443 
\begin_layout Plain Layout
2444 
-
2445 
\end_layout
2446 
 
2447 
\end_inset
2448
2449
2450
2451 
 
2452 
\end_inset
2453 
 
2454 
 
2455 
\end_layout
2456 
 
2457 
\begin_layout Plain Layout
2458 
\begin_inset Caption Standard
2459 
 
2460 
\begin_layout Plain Layout
2461 
\begin_inset CommandInset label
2462 
LatexCommand label
2463 
name "tab:Ports"
2464 
 
2465 
\end_inset
2466 
 
2467 
Ports
2468 
\end_layout
2469 
 
2470 
\end_inset
2471 
 
2472 
 
2473 
\end_layout
2474 
 
2475 
\end_inset
2476 
 
2477 
 
2478 
\end_layout
2479 
 
2480 
\begin_layout Subsection
2481 
Clocks
2482 
\end_layout
2483 
 
2484 
\begin_layout Standard
2485 
Up to three different clocks may be supplied to the MPEG2 decoder.
2486 
 
2487 
\end_layout
2488 
 
2489 
\begin_layout Labeling
2490 
\labelwidthstring 00.00.0000
2491 
 
2492 
\family typewriter
2493 
clk
2494 
\family default
2495 
 Main decoder clock, input.
2496 
 
2497 
\end_layout
2498 
 
2499 
\begin_layout Labeling
2500 
\labelwidthstring 00.00.0000
2501 
 
2502 
\family typewriter
2503 
dot_clk
2504 
\family default
2505 
 Video clock, input.
2506 
  Variable frequency, varying with current video modeline.
2507 
 
2508 
\end_layout
2509 
 
2510 
\begin_layout Labeling
2511 
\labelwidthstring 00.00.0000
2512 
 
2513 
\family typewriter
2514 
mem_clk
2515 
\family default
2516 
 Memory Controller Clock, input.
2517 
 
2518 
\end_layout
2519 
 
2520 
\begin_layout Standard
2521 
The decoder produces pixels at a maximum rate of one per
2522 
\family typewriter
2523 
clk
2524 
\family default
2525 
 cycle.
2526 
 
2527 
\end_layout
2528 
 
2529 
\begin_layout Subsection
2530 
Reset
2531 
\end_layout
2532 
 
2533 
\begin_layout Labeling
2534 
\labelwidthstring 00.00.0000
2535 
 
2536 
\family typewriter
2537 
rst
2538 
\family default
2539 
 Asynchronous reset, input, active low, internally synchronized.
2540 
 
2541 
\end_layout
2542 
 
2543 
\begin_layout Subsection
2544 
Stream Input
2545 
\end_layout
2546 
 
2547 
\begin_layout Labeling
2548 
\labelwidthstring 00.00.0000
2549 
 
2550 
\family typewriter
2551 
stream_data
2552 
\family default
2553 
 8-bit elementary stream data, input, synchronous with
2554 
\family typewriter
2555 
clk
2556 
\family default
2557 
, byte aligned.
2558 
 The elementary stream is an MPEG2 4:2:0 video elementary stream.
2559 
\end_layout
2560 
 
2561 
\begin_layout Labeling
2562 
\labelwidthstring 00.00.0000
2563 
 
2564 
\family typewriter
2565 
stream_valid
2566 
\family default
2567 
 elementary stream data valid, input, synchronous with
2568 
\family typewriter
2569 
clk
2570 
\family default
2571 
.
2572 
 Assert when stream_data valid.
2573 
\end_layout
2574 
 
2575 
\begin_layout Labeling
2576 
\labelwidthstring 00.00.0000
2577 
 
2578 
\family typewriter
2579 
busy
2580 
\family default
2581 
 busy, active high, output, synchronous with
2582 
\family typewriter
2583 
clk
2584 
\family default
2585 
.
2586 
 When high, indicates maintaining
2587 
\family typewriter
2588 
stream_valid
2589 
\family default
2590 
 high will overflow decoder input buffers.
2591 
\end_layout
2592 
 
2593 
\begin_layout Subsection
2594 
Register File Access
2595 
\end_layout
2596 
 
2597 
\begin_layout Labeling
2598 
\labelwidthstring 00.00.0000
2599 
 
2600 
\family typewriter
2601 
reg_addr
2602 
\family default
2603 
 5-bit register address, input, synchronous with
2604 
\family typewriter
2605 
clk
2606 
\family default
2607 
.
2608 
\end_layout
2609 
 
2610 
\begin_layout Labeling
2611 
\labelwidthstring 00.00.0000
2612 
 
2613 
\family typewriter
2614 
reg_dta_in
2615 
\family default
2616 
 32-bit register data in, input, synchronous with
2617 
\family typewriter
2618 
clk
2619 
\family default
2620 
.
2621 
\end_layout
2622 
 
2623 
\begin_layout Labeling
2624 
\labelwidthstring 00.00.0000
2625 
 
2626 
\family typewriter
2627 
reg_wr_en
2628 
\family default
2629 
 register write enable, input, active high, synchronous with
2630 
\family typewriter
2631 
clk
2632 
\family default
2633 
.
2634 
 Assert to write
2635 
\family typewriter
2636 
reg_dta_in
2637 
\family default
2638 
 to
2639 
\family typewriter
2640 
reg_addr
2641 
\family default
2642 
.
2643 
\end_layout
2644 
 
2645 
\begin_layout Labeling
2646 
\labelwidthstring 00.00.0000
2647 
 
2648 
\family typewriter
2649 
reg_dta_out
2650 
\family default
2651 
 32-bit register data out, output, synchronous with
2652 
\family typewriter
2653 
clk
2654 
\family default
2655 
.
2656 
\end_layout
2657 
 
2658 
\begin_layout Labeling
2659 
\labelwidthstring 00.00.0000
2660 
 
2661 
\family typewriter
2662 
reg_rd_en
2663 
\family default
2664 
 Active high register read enable, input, synchronous with
2665 
\family typewriter
2666 
clk
2667 
\family default
2668 
.
2669 
 Assert to obtain the contents of register
2670 
\family typewriter
2671 
reg_addr
2672 
\family default
2673 
 at
2674 
\family typewriter
2675 
reg_dta_out
2676 
\family default
2677 
.
2678 
\end_layout
2679 
 
2680 
\begin_layout Subsection
2681 
Memory Controller
2682 
\end_layout
2683 
 
2684 
\begin_layout Standard
2685 
The interface between MPEG2 decoder and memory controller consists of two
2686 
 fifos.
2687 
 The memory request FIFO sends memory read, write or refresh requests from
2688 
 decoder to memory controller.
2689 
 The memory response FIFO sends data read from memory controller to MPEG2
2690 
 decoder.
2691 
 The data from the memory read requests appears in the memory response FIFO
2692 
 in the same order as the memory reads were issued in the memory request
2693 
 FIFO.
2694 
\end_layout
2695 
 
2696 
\begin_layout Subsection
2697 
Memory Request FIFO
2698 
\end_layout
2699 
 
2700 
\begin_layout Labeling
2701 
\labelwidthstring 00.00.0000
2702 
 
2703 
\family typewriter
2704 
mem_req_rd_cmd
2705 
\family default
2706 
 memory request command, output, synchronous with
2707 
\family typewriter
2708 
mem_clk
2709 
\family default
2710 
.
2711 
 Valid values are defined in table
2712 
\begin_inset CommandInset ref
2713 
LatexCommand ref
2714 
reference "tab:Memory-controller-commands"
2715 
 
2716 
\end_inset
2717 
 
2718 
.
2719 
 
2720 
\begin_inset Float table
2721 
wide false
2722 
sideways false
2723 
status open
2724 
 
2725 
\begin_layout Plain Layout
2726 
\align center
2727 
\begin_inset Tabular
2728
2729
2730
2731
2732
2733
2734
2735 
\begin_inset Text
2736 
 
2737 
\begin_layout Plain Layout
2738 
mem_req_rd_cmd
2739 
\end_layout
2740 
 
2741 
\end_inset
2742
2743
2744 
\begin_inset Text
2745 
 
2746 
\begin_layout Plain Layout
2747 
Mnemonic
2748 
\end_layout
2749 
 
2750 
\end_inset
2751
2752
2753 
\begin_inset Text
2754 
 
2755 
\begin_layout Plain Layout
2756 
Description
2757 
\end_layout
2758 
 
2759 
\end_inset
2760
2761
2762
2763
2764 
\begin_inset Text
2765 
 
2766 
\begin_layout Plain Layout
2767 
 
2768 
\end_layout
2769 
 
2770 
\end_inset
2771
2772
2773 
\begin_inset Text
2774 
 
2775 
\begin_layout Plain Layout
2776 
CMD_NOOP
2777 
\end_layout
2778 
 
2779 
\end_inset
2780
2781
2782 
\begin_inset Text
2783 
 
2784 
\begin_layout Plain Layout
2785 
No operation
2786 
\end_layout
2787 
 
2788 
\end_inset
2789
2790
2791
2792
2793 
\begin_inset Text
2794 
 
2795 
\begin_layout Plain Layout
2796 
1
2797 
\end_layout
2798 
 
2799 
\end_inset
2800
2801
2802 
\begin_inset Text
2803 
 
2804 
\begin_layout Plain Layout
2805 
CMD_REFRESH
2806 
\end_layout
2807 
 
2808 
\end_inset
2809
2810
2811 
\begin_inset Text
2812 
 
2813 
\begin_layout Plain Layout
2814 
Refresh memory
2815 
\end_layout
2816 
 
2817 
\end_inset
2818
2819
2820
2821
2822 
\begin_inset Text
2823 
 
2824 
\begin_layout Plain Layout
2825 
2
2826 
\end_layout
2827 
 
2828 
\end_inset
2829
2830
2831 
\begin_inset Text
2832 
 
2833 
\begin_layout Plain Layout
2834 
CMD_READ
2835 
\end_layout
2836 
 
2837 
\end_inset
2838
2839
2840 
\begin_inset Text
2841 
 
2842 
\begin_layout Plain Layout
2843 
Read 64-bit word
2844 
\end_layout
2845 
 
2846 
\end_inset
2847
2848
2849
2850
2851 
\begin_inset Text
2852 
 
2853 
\begin_layout Plain Layout
2854 
3
2855 
\end_layout
2856 
 
2857 
\end_inset
2858
2859
2860 
\begin_inset Text
2861 
 
2862 
\begin_layout Plain Layout
2863 
CMD_WRITE
2864 
\end_layout
2865 
 
2866 
\end_inset
2867
2868
2869 
\begin_inset Text
2870 
 
2871 
\begin_layout Plain Layout
2872 
Write 64-bit word
2873 
\end_layout
2874 
 
2875 
\end_inset
2876
2877
2878
2879 
 
2880 
\end_inset
2881 
 
2882 
 
2883 
\end_layout
2884 
 
2885 
\begin_layout Plain Layout
2886 
\begin_inset Caption Standard
2887 
 
2888 
\begin_layout Plain Layout
2889 
\begin_inset CommandInset label
2890 
LatexCommand label
2891 
name "tab:Memory-controller-commands"
2892 
 
2893 
\end_inset
2894 
 
2895 
Memory controller commands
2896 
\end_layout
2897 
 
2898 
\end_inset
2899 
 
2900 
 
2901 
\end_layout
2902 
 
2903 
\end_inset
2904 
 
2905 
 
2906 
\end_layout
2907 
 
2908 
\begin_layout Labeling
2909 
\labelwidthstring 00.00.0000
2910 
 
2911 
\family typewriter
2912 
mem_req_rd_addr
2913 
\family default
2914 
 22-bit memory request address, output, synchronous with
2915 
\family typewriter
2916 
mem_clk
2917 
\family default
2918 
.
2919 
\end_layout
2920 
 
2921 
\begin_layout Labeling
2922 
\labelwidthstring 00.00.0000
2923 
 
2924 
\family typewriter
2925 
mem_req_rd_dta
2926 
\family default
2927 
 64-bit memory request data, output, synchronous with
2928 
\family typewriter
2929 
mem_clk
2930 
\family default
2931 
.
2932 
\end_layout
2933 
 
2934 
\begin_layout Labeling
2935 
\labelwidthstring 00.00.0000
2936 
 
2937 
\family typewriter
2938 
mem_req_rd_en
2939 
\family default
2940 
 memory request read enable, input, active high, synchronous  with
2941 
\family typewriter
2942 
mem_clk
2943 
\family default
2944 
.
2945 
\end_layout
2946 
 
2947 
\begin_layout Labeling
2948 
\labelwidthstring 00.00.0000
2949 
 
2950 
\family typewriter
2951 
mem_req_rd_valid
2952 
\family default
2953 
 memory request read valid, output, active high, synchronous  with
2954 
\family typewriter
2955 
mem_clk
2956 
\family default
2957 
.
2958 
 Indicates when
2959 
\family typewriter
2960 
mem_req_rd_cmd
2961 
\family default
2962 
,
2963 
\family typewriter
2964 
mem_req_rd_addr
2965 
\family default
2966 
 and
2967 
\family typewriter
2968 
mem_req_rd_dta
2969 
\family default
2970 
 have meaningful values.
2971 
\end_layout
2972 
 
2973 
\begin_layout Subsection
2974 
Memory Response FIFO
2975 
\end_layout
2976 
 
2977 
\begin_layout Labeling
2978 
\labelwidthstring 00.00.0000
2979 
 
2980 
\family typewriter
2981 
mem_res_wr_dta
2982 
\family default
2983 
 64-bit memory response write data, input, synchronous with
2984 
\family typewriter
2985 
mem_clk
2986 
\family default
2987 
.
2988 
\end_layout
2989 
 
2990 
\begin_layout Labeling
2991 
\labelwidthstring 00.00.0000
2992 
 
2993 
\family typewriter
2994 
mem_res_wr_en
2995 
\family default
2996 
 memory response write enable, input, active high, synchronous  with
2997 
\family typewriter
2998 
mem_clk
2999 
\family default
3000 
.
3001 
 Assert to write
3002 
\family typewriter
3003 
mem_res_wr_dta
3004 
\family default
3005 
 to the memory response FIFO.
3006 
 
3007 
\end_layout
3008 
 
3009 
\begin_layout Labeling
3010 
\labelwidthstring 00.00.0000
3011 
 
3012 
\family typewriter
3013 
mem_res_wr_almost_full
3014 
\family default
3015 
 memory response write almost full, output, active  high, synchronous with
3016 
 mem_clk.
3017 
 When high, indicates maintaining
3018 
\family typewriter
3019 
mem_res_wr_en
3020 
\family default
3021 
 high will overflow the memory response FIFO.
3022 
 The current clock cycle can be completed without overflowing the memory
3023 
 response FIFO.
3024 
\end_layout
3025 
 
3026 
\begin_layout Subsection
3027 
Video Output
3028 
\end_layout
3029 
 
3030 
\begin_layout Labeling
3031 
\labelwidthstring 00.00.0000
3032 
 
3033 
\family typewriter
3034 
r
3035 
\family default
3036 
 red component, output, synchronous with
3037 
\family typewriter
3038 
dot_clk
3039 
\family default
3040 
.
3041 
\end_layout
3042 
 
3043 
\begin_layout Labeling
3044 
\labelwidthstring 00.00.0000
3045 
 
3046 
\family typewriter
3047 
g
3048 
\family default
3049 
 green component, output, synchronous with
3050 
\family typewriter
3051 
dot_clk
3052 
\family default
3053 
.
3054 
\end_layout
3055 
 
3056 
\begin_layout Labeling
3057 
\labelwidthstring 00.00.0000
3058 
 
3059 
\family typewriter
3060 
b
3061 
\family default
3062 
 blue component, output, synchronous with
3063 
\family typewriter
3064 
dot_clk
3065 
\family default
3066 
.
3067 
\end_layout
3068 
 
3069 
\begin_layout Labeling
3070 
\labelwidthstring 00.00.0000
3071 
 
3072 
\family typewriter
3073 
y
3074 
\family default
3075 
 Y luminance, output, synchronous with
3076 
\family typewriter
3077 
dot_clk
3078 
\family default
3079 
.
3080 
\end_layout
3081 
 
3082 
\begin_layout Labeling
3083 
\labelwidthstring 00.00.0000
3084 
 
3085 
\family typewriter
3086 
u
3087 
\family default
3088 
 Cr chrominance, output, synchronous with
3089 
\family typewriter
3090 
dot_clk
3091 
\family default
3092 
.
3093 
\end_layout
3094 
 
3095 
\begin_layout Labeling
3096 
\labelwidthstring 00.00.0000
3097 
 
3098 
\family typewriter
3099 
v
3100 
\family default
3101 
 Cb chrominance, output, synchronous with
3102 
\family typewriter
3103 
dot_clk
3104 
\family default
3105 
.
3106 
\end_layout
3107 
 
3108 
\begin_layout Labeling
3109 
\labelwidthstring 00.00.0000
3110 
 
3111 
\family typewriter
3112 
pixel_en
3113 
\family default
3114 
 pixel enable, output, active high, synchronous with
3115 
\family typewriter
3116 
dot_clk
3117 
\family default
3118 
.
3119 
 When
3120 
\family typewriter
3121 
pixel_en
3122 
\family default
3123 
 is high,
3124 
\family typewriter
3125 
r
3126 
\family default
3127 
,
3128 
\family typewriter
3129 
g
3130 
\family default
3131 
,
3132 
\family typewriter
3133 
b
3134 
\family default
3135 
,
3136 
\family typewriter
3137 
y
3138 
\family default
3139 
,
3140 
\family typewriter
3141 
u
3142 
\family default
3143 
 and
3144 
\family typewriter
3145 
v
3146 
\family default
3147 
 are valid; when
3148 
\family typewriter
3149 
pixel_en
3150 
\family default
3151 
 is low video is blanked.
3152 
\end_layout
3153 
 
3154 
\begin_layout Labeling
3155 
\labelwidthstring 00.00.0000
3156 
 
3157 
\family typewriter
3158 
h_sync
3159 
\family default
3160 
 horizontal synchronization, output, active high, synchronous with
3161 
\family typewriter
3162 
dot_clk
3163 
\family default
3164 
.
3165 
\end_layout
3166 
 
3167 
\begin_layout Labeling
3168 
\labelwidthstring 00.00.0000
3169 
 
3170 
\family typewriter
3171 
v_sync
3172 
\family default
3173 
 vertical synchronization, output, active high, synchronous with
3174 
\family typewriter
3175 
dot_clk
3176 
\family default
3177 
.
3178 
\end_layout
3179 
 
3180 
\begin_layout Labeling
3181 
\labelwidthstring 00.00.0000
3182 
 
3183 
\family typewriter
3184 
c_sync
3185 
\family default
3186 
 composite synchronization, output, active low, synchronous with
3187 
\family typewriter
3188 
dot_clk
3189 
\family default
3190 
.
3191 
\end_layout
3192 
 
3193 
\begin_layout Subsection
3194 
Test Point
3195 
\end_layout
3196 
 
3197 
\begin_layout Standard
3198 
The decoder provides a test point for connecting a logic analyzer.
3199 
 The signals available at the test point can be selected either by software
3200 
 control, or using dip switches.
3201 
 The signals available at the test point are not defined as part of this
3202 
 specification, may vary even for implementations with the same status register
3203 
 version number and are subject to change without notice.
3204 
 See Verilog source
3205 
\family typewriter
3206 
probe.v
3207 
\family default
3208 
 for details.
3209 
\end_layout
3210 
 
3211 
\begin_layout Labeling
3212 
\labelwidthstring 00.00.0000
3213 
 
3214 
\family typewriter
3215 
testpoint_dip_en
3216 
\family default
3217 
 1-bit input.
3218 
 If
3219 
\family typewriter
3220 
testpoint_dip_en
3221 
\family default
3222 
 is high, the registers visible at
3223 
\family typewriter
3224 
testpoint
3225 
\family default
3226 
 are selected using
3227 
\family typewriter
3228 
testpoint_dip
3229 
\family default
3230 
.
3231 
 If
3232 
\family typewriter
3233 
testpoint_dip_en
3234 
\family default
3235 
 is low, the registers visible at
3236 
\family typewriter
3237 
testpoint
3238 
\family default
3239 
 output are selected using the
3240 
\family typewriter
3241 
testpoint_sel
3242 
\family default
3243 
 field of register 15.
3244 
\end_layout
3245 
 
3246 
\begin_layout Labeling
3247 
\labelwidthstring 00.00.0000
3248 
 
3249 
\family typewriter
3250 
testpoint_dip
3251 
\family default
3252 
  4-bit input.
3253 
 
3254 
\family typewriter
3255 
testpoint_dip
3256 
\family default
3257 
 selects test point output if
3258 
\family typewriter
3259 
testpoint_dip_en
3260 
\family default
3261 
 is high.
3262 
\end_layout
3263 
 
3264 
\begin_layout Labeling
3265 
\labelwidthstring 00.00.0000
3266 
 
3267 
\family typewriter
3268 
testpoint
3269 
\family default
3270 
  34-bit output.
3271 
 
3272 
\family typewriter
3273 
testpoint
3274 
\family default
3275 
 is a test point to connect a 34-channel logic analyzer probe to the MPEG2
3276 
 decoder.
3277 
 Up to 16 different sets of signals are available, hardware selectable using
3278 
 the
3279 
\family typewriter
3280 
testpoint_dip
3281 
\family default
3282 
 dip switches or software selectable by writing to register 15.
3283 
 Any clocks present are on bits 32 and/or 33; bits 0 to 31 are data only.
3284 
 Bits 0 to 31 can also be accessed by software, by reading register 15.
3285 
 
3286 
\end_layout
3287 
 
3288 
\begin_layout Subsection
3289 
Status
3290 
\end_layout
3291 
 
3292 
\begin_layout Labeling
3293 
\labelwidthstring 00.00.0000
3294 
 
3295 
\family typewriter
3296 
error
3297 
\family default
3298 
 error, output, active high, synchronous with
3299 
\family typewriter
3300 
clk
3301 
\family default
3302 
.
3303 
 Indicates variable length decoding encountered an error in the bitstream.
3304 
\end_layout
3305 
 
3306 
\begin_layout Labeling
3307 
\labelwidthstring 00.00.0000
3308 
 
3309 
\family typewriter
3310 
interrupt
3311 
\family default
3312 
 interrupt, output, active high, synchronous with
3313 
\family typewriter
3314 
clk
3315 
\family default
3316 
.
3317 
 Reading the status register allows software to determine the cause of the
3318 
 interrupt, and will clear the interrupt.
3319 
\end_layout
3320 
 
3321 
\begin_layout Labeling
3322 
\labelwidthstring 00.00.0000
3323 
 
3324 
\family typewriter
3325 
watchdog_rst
3326 
\family roman
3327 
\series medium
3328 
\shape up
3329 
\size normal
3330 
\emph off
3331 
\bar no
3332 
\noun off
3333 
\color none
3334 
 watchdog-generated reset signal, output, active low,
3335 
\family default
3336 
\series default
3337 
\shape default
3338 
\size default
3339 
\emph default
3340 
\bar default
3341 
\noun default
3342 
\color inherit
3343 
synchronous with
3344 
\family typewriter
3345 
clk
3346 
\family default
3347 
.
3348 
 Normally high; low during one clock cycle if the watchdog timer expires.
3349 
\end_layout
3350 
 
3351 
\begin_layout Section
3352 
Processor Tasks
3353 
\end_layout
3354 
 
3355 
\begin_layout Standard
3356 
To decode an MPEG-2 bitstream, the processor should execute the following
3357 
 tasks, in order:
3358 
\end_layout
3359 
 
3360 
\begin_layout Enumerate
3361 
Initialize the horizontal, horizontal sync, vertical, vertical sync and
3362 
 video mode registers with reasonable defaults.
3363 
 Clear
3364 
\family typewriter
3365 
osd_enable
3366 
\family default
3367 
,
3368 
\family typewriter
3369 
picture_hdr_intr_en
3370 
\family default
3371 
 and
3372 
\family typewriter
3373 
frame_end_intr_en
3374 
\family default
3375 
.
3376 
 Set the
3377 
\family typewriter
3378 
video_ch_intr_en
3379 
\family default
3380 
 flag.
3381 
\end_layout
3382 
 
3383 
\begin_layout Enumerate
3384 
Start feeding the MPEG-2 bitstream to the
3385 
\family typewriter
3386 
stream_data
3387 
\family default
3388 
 port of the decoder.
3389 
\end_layout
3390 
 
3391 
\begin_layout Enumerate
3392 
The decoder will issue an interrupt when video resolution or frame rate
3393 
 changes.
3394 
 Whenever the decoder issues an interrupt, clear the interrupt by reading
3395 
 the status register.
3396 
 Read the size, display size and frame rate registers.
3397 
 Calculate a new modeline, change dot clock frequency if necessary, and
3398 
 write the new video timing parameters to the horizontal, horizontal sync,
3399 
 vertical, vertical sync and video mode registers.
3400 
\end_layout
3401 
 
3402 
\begin_layout Enumerate
3403 
At bitstream end, pad the stream with 8 times hex 000001b7, the sequence
3404 
 end code (ISO/IEC 13818-2, par.
3405 
 6.2.1, Start Codes).
3406 
\end_layout
3407 
 
3408 
\begin_layout Standard
3409 
If the On-Screen Display (OSD) is used, the processor should execute the
3410 
 following tasks as well:
3411 
\end_layout
3412 
 
3413 
\begin_layout Enumerate
3414 
Initialize the On-Screen Display color look-up table.
3415 
\end_layout
3416 
 
3417 
\begin_layout Enumerate
3418 
Wait until
3419 
\family typewriter
3420 
horizontal_size
3421 
\family default
3422 
 and
3423 
\family typewriter
3424 
vertical_size
3425 
\family default
3426 
 have meaningful values.
3427 
\end_layout
3428 
 
3429 
\begin_layout Enumerate
3430 
Write to the On-Screen Display.
3431 
\end_layout
3432 
 
3433 
\begin_layout Enumerate
3434 
Set
3435 
\family typewriter
3436 
osd_enable
3437 
\family default
3438 
 to one.
3439 
\end_layout
3440 
 
3441 
\begin_layout Enumerate
3442 
If a video change interrupt occurs, and
3443 
\family typewriter
3444 
horizontal_size
3445 
\family default
3446 
 or
3447 
\family typewriter
3448 
vertical_size
3449 
\family default
3450 
 has changed, rewrite the On-Screen Display.
3451 
\end_layout
3452 
 
3453 
\begin_layout Standard
3454 
Writing to the OSD is described in detail
3455 
\begin_inset CommandInset ref
3456 
LatexCommand vpageref
3457 
reference "sec:On-Screen-Display"
3458 
 
3459 
\end_inset
3460 
 
3461 
.
3462 
 Interrupt handling is treated
3463 
\begin_inset CommandInset ref
3464 
LatexCommand vpageref
3465 
reference "sec:Interrupts"
3466 
 
3467 
\end_inset
3468 
 
3469 
.
3470 
\end_layout
3471 
 
3472 
\begin_layout Section
3473 
Registers
3474 
\end_layout
3475 
 
3476 
\begin_layout Standard
3477 
The processor interface to the decoder consists of two times 16 32-bit registers.
3478 
 These registers can be divided in 16 read-mode registers (Table
3479 
\begin_inset CommandInset ref
3480 
LatexCommand ref
3481 
reference "tab:Read-mode-Registers"
3482 
 
3483 
\end_inset
3484 
 
3485 
) and 16 write-mode registers (Table
3486 
\begin_inset CommandInset ref
3487 
LatexCommand ref
3488 
reference "tab:Write-mode-Registers"
3489 
 
3490 
\end_inset
3491 
 
3492 
).
3493 
 The read-mode registers allow reading decoder status, while the write-mode
3494 
 registers allow setting video timing parameters and writing to the On-Screen
3495 
 Display (OSD).
3496 
\begin_inset Float table
3497 
wide false
3498 
sideways false
3499 
status open
3500 
 
3501 
\begin_layout Plain Layout
3502 
\align center
3503 
\begin_inset Tabular
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513 
\begin_inset Text
3514 
 
3515 
\begin_layout Plain Layout
3516 
 
3517 
\end_layout
3518 
 
3519 
\end_inset
3520
3521
3522 
\begin_inset Text
3523 
 
3524 
\begin_layout Plain Layout
3525 
register
3526 
\end_layout
3527 
 
3528 
\end_inset
3529
3530
3531 
\begin_inset Text
3532 
 
3533 
\begin_layout Plain Layout
3534 
bits
3535 
\end_layout
3536 
 
3537 
\end_inset
3538
3539
3540 
\begin_inset Text
3541 
 
3542 
\begin_layout Plain Layout
3543 
content
3544 
\end_layout
3545 
 
3546 
\end_inset
3547
3548
3549 
\begin_inset Text
3550 
 
3551 
\begin_layout Plain Layout
3552 
read/write
3553 
\end_layout
3554 
 
3555 
\end_inset
3556
3557
3558
3559
3560 
\begin_inset Text
3561 
 
3562 
\begin_layout Plain Layout
3563 
 
3564 
\end_layout
3565 
 
3566 
\end_inset
3567
3568
3569 
\begin_inset Text
3570 
 
3571 
\begin_layout Plain Layout
3572 
version
3573 
\end_layout
3574 
 
3575 
\end_inset
3576
3577
3578 
\begin_inset Text
3579 
 
3580 
\begin_layout Plain Layout
3581 
15-0
3582 
\end_layout
3583 
 
3584 
\end_inset
3585
3586
3587 
\begin_inset Text
3588 
 
3589 
\begin_layout Plain Layout
3590 
 
3591 
\family typewriter
3592 
version
3593 
\end_layout
3594 
 
3595 
\end_inset
3596
3597
3598 
\begin_inset Text
3599 
 
3600 
\begin_layout Plain Layout
3601 
r
3602 
\end_layout
3603 
 
3604 
\end_inset
3605
3606
3607
3608
3609 
\begin_inset Text
3610 
 
3611 
\begin_layout Plain Layout
3612 
1
3613 
\end_layout
3614 
 
3615 
\end_inset
3616
3617
3618 
\begin_inset Text
3619 
 
3620 
\begin_layout Plain Layout
3621 
status
3622 
\end_layout
3623 
 
3624 
\end_inset
3625
3626
3627 
\begin_inset Text
3628 
 
3629 
\begin_layout Plain Layout
3630 
15-8
3631 
\end_layout
3632 
 
3633 
\end_inset
3634
3635
3636 
\begin_inset Text
3637 
 
3638 
\begin_layout Plain Layout
3639 
 
3640 
\family typewriter
3641 
matrix_coefficients
3642 
\end_layout
3643 
 
3644 
\end_inset
3645
3646
3647 
\begin_inset Text
3648 
 
3649 
\begin_layout Plain Layout
3650 
r
3651 
\end_layout
3652 
 
3653 
\end_inset
3654
3655
3656
3657
3658 
\begin_inset Text
3659 
 
3660 
\begin_layout Plain Layout
3661 
 
3662 
\end_layout
3663 
 
3664 
\end_inset
3665
3666
3667 
\begin_inset Text
3668 
 
3669 
\begin_layout Plain Layout
3670 
 
3671 
\end_layout
3672 
 
3673 
\end_inset
3674
3675
3676 
\begin_inset Text
3677 
 
3678 
\begin_layout Plain Layout
3679 
7
3680 
\end_layout
3681 
 
3682 
\end_inset
3683
3684
3685 
\begin_inset Text
3686 
 
3687 
\begin_layout Plain Layout
3688 
 
3689 
\family typewriter
3690 
watchdog_status
3691 
\end_layout
3692 
 
3693 
\end_inset
3694
3695
3696 
\begin_inset Text
3697 
 
3698 
\begin_layout Plain Layout
3699 
r
3700 
\end_layout
3701 
 
3702 
\end_inset
3703
3704
3705
3706
3707 
\begin_inset Text
3708 
 
3709 
\begin_layout Plain Layout
3710 
 
3711 
\end_layout
3712 
 
3713 
\end_inset
3714
3715
3716 
\begin_inset Text
3717 
 
3718 
\begin_layout Plain Layout
3719 
 
3720 
\end_layout
3721 
 
3722 
\end_inset
3723
3724
3725 
\begin_inset Text
3726 
 
3727 
\begin_layout Plain Layout
3728 
6
3729 
\end_layout
3730 
 
3731 
\end_inset
3732
3733
3734 
\begin_inset Text
3735 
 
3736 
\begin_layout Plain Layout
3737 
 
3738 
\family typewriter
3739 
osd_wr_en
3740 
\end_layout
3741 
 
3742 
\end_inset
3743
3744
3745 
\begin_inset Text
3746 
 
3747 
\begin_layout Plain Layout
3748 
r
3749 
\end_layout
3750 
 
3751 
\end_inset
3752
3753
3754
3755
3756 
\begin_inset Text
3757 
 
3758 
\begin_layout Plain Layout
3759 
 
3760 
\end_layout
3761 
 
3762 
\end_inset
3763
3764
3765 
\begin_inset Text
3766 
 
3767 
\begin_layout Plain Layout
3768 
 
3769 
\end_layout
3770 
 
3771 
\end_inset
3772
3773
3774 
\begin_inset Text
3775 
 
3776 
\begin_layout Plain Layout
3777 
5
3778 
\end_layout
3779 
 
3780 
\end_inset
3781
3782
3783 
\begin_inset Text
3784 
 
3785 
\begin_layout Plain Layout
3786 
 
3787 
\family typewriter
3788 
osd_wr_ack
3789 
\end_layout
3790 
 
3791 
\end_inset
3792
3793
3794 
\begin_inset Text
3795 
 
3796 
\begin_layout Plain Layout
3797 
r
3798 
\end_layout
3799 
 
3800 
\end_inset
3801
3802
3803
3804
3805 
\begin_inset Text
3806 
 
3807 
\begin_layout Plain Layout
3808 
 
3809 
\end_layout
3810 
 
3811 
\end_inset
3812
3813
3814 
\begin_inset Text
3815 
 
3816 
\begin_layout Plain Layout
3817 
 
3818 
\end_layout
3819 
 
3820 
\end_inset
3821
3822
3823 
\begin_inset Text
3824 
 
3825 
\begin_layout Plain Layout
3826 
4
3827 
\end_layout
3828 
 
3829 
\end_inset
3830
3831
3832 
\begin_inset Text
3833 
 
3834 
\begin_layout Plain Layout
3835 
 
3836 
\family typewriter
3837 
osd_wr_full
3838 
\end_layout
3839 
 
3840 
\end_inset
3841
3842
3843 
\begin_inset Text
3844 
 
3845 
\begin_layout Plain Layout
3846 
r
3847 
\end_layout
3848 
 
3849 
\end_inset
3850
3851
3852
3853
3854 
\begin_inset Text
3855 
 
3856 
\begin_layout Plain Layout
3857 
 
3858 
\end_layout
3859 
 
3860 
\end_inset
3861
3862
3863 
\begin_inset Text
3864 
 
3865 
\begin_layout Plain Layout
3866 
 
3867 
\end_layout
3868 
 
3869 
\end_inset
3870
3871
3872 
\begin_inset Text
3873 
 
3874 
\begin_layout Plain Layout
3875 
3
3876 
\end_layout
3877 
 
3878 
\end_inset
3879
3880
3881 
\begin_inset Text
3882 
 
3883 
\begin_layout Plain Layout
3884 
 
3885 
\family typewriter
3886 
picture_hdr
3887 
\end_layout
3888 
 
3889 
\end_inset
3890
3891
3892 
\begin_inset Text
3893 
 
3894 
\begin_layout Plain Layout
3895 
r
3896 
\end_layout
3897 
 
3898 
\end_inset
3899
3900
3901
3902
3903 
\begin_inset Text
3904 
 
3905 
\begin_layout Plain Layout
3906 
 
3907 
\end_layout
3908 
 
3909 
\end_inset
3910
3911
3912 
\begin_inset Text
3913 
 
3914 
\begin_layout Plain Layout
3915 
 
3916 
\end_layout
3917 
 
3918 
\end_inset
3919
3920
3921 
\begin_inset Text
3922 
 
3923 
\begin_layout Plain Layout
3924 
2
3925 
\end_layout
3926 
 
3927 
\end_inset
3928
3929
3930 
\begin_inset Text
3931 
 
3932 
\begin_layout Plain Layout
3933 
 
3934 
\family typewriter
3935 
frame_end
3936 
\end_layout
3937 
 
3938 
\end_inset
3939
3940
3941 
\begin_inset Text
3942 
 
3943 
\begin_layout Plain Layout
3944 
r
3945 
\end_layout
3946 
 
3947 
\end_inset
3948
3949
3950
3951
3952 
\begin_inset Text
3953 
 
3954 
\begin_layout Plain Layout
3955 
 
3956 
\end_layout
3957 
 
3958 
\end_inset
3959
3960
3961 
\begin_inset Text
3962 
 
3963 
\begin_layout Plain Layout
3964 
 
3965 
\end_layout
3966 
 
3967 
\end_inset
3968
3969
3970 
\begin_inset Text
3971 
 
3972 
\begin_layout Plain Layout
3973 
1
3974 
\end_layout
3975 
 
3976 
\end_inset
3977
3978
3979 
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3980 
 
3981 
\begin_layout Plain Layout
3982 
 
3983 
\family typewriter
3984 
video_ch
3985 
\end_layout
3986 
 
3987 
\end_inset
3988
3989
3990 
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3991 
 
3992 
\begin_layout Plain Layout
3993 
r
3994 
\end_layout
3995 
 
3996 
\end_inset
3997
3998
3999
4000
4001 
\begin_inset Text
4002 
 
4003 
\begin_layout Plain Layout
4004 
 
4005 
\end_layout
4006 
 
4007 
\end_inset
4008
4009
4010 
\begin_inset Text
4011 
 
4012 
\begin_layout Plain Layout
4013 
 
4014 
\end_layout
4015 
 
4016 
\end_inset
4017
4018
4019 
\begin_inset Text
4020 
 
4021 
\begin_layout Plain Layout
4022 
 
4023 
\end_layout
4024 
 
4025 
\end_inset
4026
4027
4028 
\begin_inset Text
4029 
 
4030 
\begin_layout Plain Layout
4031 
 
4032 
\family typewriter
4033 
error
4034 
\end_layout
4035 
 
4036 
\end_inset
4037
4038
4039 
\begin_inset Text
4040 
 
4041 
\begin_layout Plain Layout
4042 
r
4043 
\end_layout
4044 
 
4045 
\end_inset
4046
4047
4048
4049
4050 
\begin_inset Text
4051 
 
4052 
\begin_layout Plain Layout
4053 
2
4054 
\end_layout
4055 
 
4056 
\end_inset
4057
4058
4059 
\begin_inset Text
4060 
 
4061 
\begin_layout Plain Layout
4062 
size
4063 
\end_layout
4064 
 
4065 
\end_inset
4066
4067
4068 
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4069 
 
4070 
\begin_layout Plain Layout
4071 
29-16
4072 
\end_layout
4073 
 
4074 
\end_inset
4075
4076
4077 
\begin_inset Text
4078 
 
4079 
\begin_layout Plain Layout
4080 
 
4081 
\family typewriter
4082 
horizontal_size
4083 
\end_layout
4084 
 
4085 
\end_inset
4086
4087
4088 
\begin_inset Text
4089 
 
4090 
\begin_layout Plain Layout
4091 
r
4092 
\end_layout
4093 
 
4094 
\end_inset
4095
4096
4097
4098
4099 
\begin_inset Text
4100 
 
4101 
\begin_layout Plain Layout
4102 
 
4103 
\end_layout
4104 
 
4105 
\end_inset
4106
4107
4108 
\begin_inset Text
4109 
 
4110 
\begin_layout Plain Layout
4111 
 
4112 
\end_layout
4113 
 
4114 
\end_inset
4115
4116
4117 
\begin_inset Text
4118 
 
4119 
\begin_layout Plain Layout
4120 
13-0
4121 
\end_layout
4122 
 
4123 
\end_inset
4124
4125
4126 
\begin_inset Text
4127 
 
4128 
\begin_layout Plain Layout
4129 
 
4130 
\family typewriter
4131 
vertical_size
4132 
\end_layout
4133 
 
4134 
\end_inset
4135
4136
4137 
\begin_inset Text
4138 
 
4139 
\begin_layout Plain Layout
4140 
r
4141 
\end_layout
4142 
 
4143 
\end_inset
4144
4145
4146
4147
4148 
\begin_inset Text
4149 
 
4150 
\begin_layout Plain Layout
4151 
3
4152 
\end_layout
4153 
 
4154 
\end_inset
4155
4156
4157 
\begin_inset Text
4158 
 
4159 
\begin_layout Plain Layout
4160 
display size
4161 
\end_layout
4162 
 
4163 
\end_inset
4164
4165
4166 
\begin_inset Text
4167 
 
4168 
\begin_layout Plain Layout
4169 
29-16
4170 
\end_layout
4171 
 
4172 
\end_inset
4173
4174
4175 
\begin_inset Text
4176 
 
4177 
\begin_layout Plain Layout
4178 
 
4179 
\family typewriter
4180 
display_horizontal_size
4181 
\end_layout
4182 
 
4183 
\end_inset
4184
4185
4186 
\begin_inset Text
4187 
 
4188 
\begin_layout Plain Layout
4189 
r
4190 
\end_layout
4191 
 
4192 
\end_inset
4193
4194
4195
4196
4197 
\begin_inset Text
4198 
 
4199 
\begin_layout Plain Layout
4200 
 
4201 
\end_layout
4202 
 
4203 
\end_inset
4204
4205
4206 
\begin_inset Text
4207 
 
4208 
\begin_layout Plain Layout
4209 
 
4210 
\end_layout
4211 
 
4212 
\end_inset
4213
4214
4215 
\begin_inset Text
4216 
 
4217 
\begin_layout Plain Layout
4218 
13-0
4219 
\end_layout
4220 
 
4221 
\end_inset
4222
4223
4224 
\begin_inset Text
4225 
 
4226 
\begin_layout Plain Layout
4227 
 
4228 
\family typewriter
4229 
display_vertical_size
4230 
\end_layout
4231 
 
4232 
\end_inset
4233
4234
4235 
\begin_inset Text
4236 
 
4237 
\begin_layout Plain Layout
4238 
r
4239 
\end_layout
4240 
 
4241 
\end_inset
4242
4243
4244
4245
4246 
\begin_inset Text
4247 
 
4248 
\begin_layout Plain Layout
4249 
4
4250 
\end_layout
4251 
 
4252 
\end_inset
4253
4254
4255 
\begin_inset Text
4256 
 
4257 
\begin_layout Plain Layout
4258 
frame rate
4259 
\end_layout
4260 
 
4261 
\end_inset
4262
4263
4264 
\begin_inset Text
4265 
 
4266 
\begin_layout Plain Layout
4267 
15-12
4268 
\end_layout
4269 
 
4270 
\end_inset
4271
4272
4273 
\begin_inset Text
4274 
 
4275 
\begin_layout Plain Layout
4276 
 
4277 
\family typewriter
4278 
aspect_ratio_information
4279 
\end_layout
4280 
 
4281 
\end_inset
4282
4283
4284 
\begin_inset Text
4285 
 
4286 
\begin_layout Plain Layout
4287 
r
4288 
\end_layout
4289 
 
4290 
\end_inset
4291
4292
4293
4294
4295 
\begin_inset Text
4296 
 
4297 
\begin_layout Plain Layout
4298 
 
4299 
\end_layout
4300 
 
4301 
\end_inset
4302
4303
4304 
\begin_inset Text
4305 
 
4306 
\begin_layout Plain Layout
4307 
 
4308 
\end_layout
4309 
 
4310 
\end_inset
4311
4312
4313 
\begin_inset Text
4314 
 
4315 
\begin_layout Plain Layout
4316 
11
4317 
\end_layout
4318 
 
4319 
\end_inset
4320
4321
4322 
\begin_inset Text
4323 
 
4324 
\begin_layout Plain Layout
4325 
 
4326 
\family typewriter
4327 
progressive_sequence
4328 
\end_layout
4329 
 
4330 
\end_inset
4331
4332
4333 
\begin_inset Text
4334 
 
4335 
\begin_layout Plain Layout
4336 
r
4337 
\end_layout
4338 
 
4339 
\end_inset
4340
4341
4342
4343
4344 
\begin_inset Text
4345 
 
4346 
\begin_layout Plain Layout
4347 
 
4348 
\end_layout
4349 
 
4350 
\end_inset
4351
4352
4353 
\begin_inset Text
4354 
 
4355 
\begin_layout Plain Layout
4356 
 
4357 
\end_layout
4358 
 
4359 
\end_inset
4360
4361
4362 
\begin_inset Text
4363 
 
4364 
\begin_layout Plain Layout
4365 
10-6
4366 
\end_layout
4367 
 
4368 
\end_inset
4369
4370
4371 
\begin_inset Text
4372 
 
4373 
\begin_layout Plain Layout
4374 
 
4375 
\family typewriter
4376 
frame_rate_extension_d
4377 
\end_layout
4378 
 
4379 
\end_inset
4380
4381
4382 
\begin_inset Text
4383 
 
4384 
\begin_layout Plain Layout
4385 
r
4386 
\end_layout
4387 
 
4388 
\end_inset
4389
4390
4391
4392
4393 
\begin_inset Text
4394 
 
4395 
\begin_layout Plain Layout
4396 
 
4397 
\end_layout
4398 
 
4399 
\end_inset
4400
4401
4402 
\begin_inset Text
4403 
 
4404 
\begin_layout Plain Layout
4405 
 
4406 
\end_layout
4407 
 
4408 
\end_inset
4409
4410
4411 
\begin_inset Text
4412 
 
4413 
\begin_layout Plain Layout
4414 
5-4
4415 
\end_layout
4416 
 
4417 
\end_inset
4418
4419
4420 
\begin_inset Text
4421 
 
4422 
\begin_layout Plain Layout
4423 
 
4424 
\family typewriter
4425 
frame_rate_extension_n
4426 
\end_layout
4427 
 
4428 
\end_inset
4429
4430
4431 
\begin_inset Text
4432 
 
4433 
\begin_layout Plain Layout
4434 
r
4435 
\end_layout
4436 
 
4437 
\end_inset
4438
4439
4440
4441
4442 
\begin_inset Text
4443 
 
4444 
\begin_layout Plain Layout
4445 
 
4446 
\end_layout
4447 
 
4448 
\end_inset
4449
4450
4451 
\begin_inset Text
4452 
 
4453 
\begin_layout Plain Layout
4454 
 
4455 
\end_layout
4456 
 
4457 
\end_inset
4458
4459
4460 
\begin_inset Text
4461 
 
4462 
\begin_layout Plain Layout
4463 
3-0
4464 
\end_layout
4465 
 
4466 
\end_inset
4467
4468
4469 
\begin_inset Text
4470 
 
4471 
\begin_layout Plain Layout
4472 
 
4473 
\family typewriter
4474 
frame_rate_code
4475 
\end_layout
4476 
 
4477 
\end_inset
4478
4479
4480 
\begin_inset Text
4481 
 
4482 
\begin_layout Plain Layout
4483 
r
4484 
\end_layout
4485 
 
4486 
\end_inset
4487
4488
4489
4490
4491 
\begin_inset Text
4492 
 
4493 
\begin_layout Plain Layout
4494 
f
4495 
\end_layout
4496 
 
4497 
\end_inset
4498
4499
4500 
\begin_inset Text
4501 
 
4502 
\begin_layout Plain Layout
4503 
testpoint
4504 
\end_layout
4505 
 
4506 
\end_inset
4507
4508
4509 
\begin_inset Text
4510 
 
4511 
\begin_layout Plain Layout
4512 
31-0
4513 
\end_layout
4514 
 
4515 
\end_inset
4516
4517
4518 
\begin_inset Text
4519 
 
4520 
\begin_layout Plain Layout
4521 
 
4522 
\family typewriter
4523 
testpoint
4524 
\end_layout
4525 
 
4526 
\end_inset
4527
4528
4529 
\begin_inset Text
4530 
 
4531 
\begin_layout Plain Layout
4532 
r
4533 
\end_layout
4534 
 
4535 
\end_inset
4536
4537
4538
4539 
 
4540 
\end_inset
4541 
 
4542 
 
4543 
\end_layout
4544 
 
4545 
\begin_layout Plain Layout
4546 
\begin_inset Caption Standard
4547 
 
4548 
\begin_layout Plain Layout
4549 
\begin_inset CommandInset label
4550 
LatexCommand label
4551 
name "tab:Read-mode-Registers"
4552 
 
4553 
\end_inset
4554 
 
4555 
Read-mode Registers
4556 
\end_layout
4557 
 
4558 
\end_inset
4559 
 
4560 
 
4561 
\begin_inset Separator latexpar
4562 
\end_inset
4563 
 
4564 
 
4565 
\end_layout
4566 
 
4567 
\end_inset
4568 
 
4569 
 
4570 
\begin_inset Float table
4571 
wide false
4572 
sideways false
4573 
status open
4574 
 
4575 
\begin_layout Plain Layout
4576 
\align center
4577 
\begin_inset Tabular
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587 
\begin_inset Text
4588 
 
4589 
\begin_layout Plain Layout
4590 
 
4591 
\end_layout
4592 
 
4593 
\end_inset
4594
4595
4596 
\begin_inset Text
4597 
 
4598 
\begin_layout Plain Layout
4599 
register
4600 
\end_layout
4601 
 
4602 
\end_inset
4603
4604
4605 
\begin_inset Text
4606 
 
4607 
\begin_layout Plain Layout
4608 
bits
4609 
\end_layout
4610 
 
4611 
\end_inset
4612
4613
4614 
\begin_inset Text
4615 
 
4616 
\begin_layout Plain Layout
4617 
content
4618 
\end_layout
4619 
 
4620 
\end_inset
4621
4622
4623 
\begin_inset Text
4624 
 
4625 
\begin_layout Plain Layout
4626 
read/write
4627 
\end_layout
4628 
 
4629 
\end_inset
4630
4631
4632
4633
4634 
\begin_inset Text
4635 
 
4636 
\begin_layout Plain Layout
4637 
 
4638 
\end_layout
4639 
 
4640 
\end_inset
4641
4642
4643 
\begin_inset Text
4644 
 
4645 
\begin_layout Plain Layout
4646 
stream
4647 
\end_layout
4648 
 
4649 
\end_inset
4650
4651
4652 
\begin_inset Text
4653 
 
4654 
\begin_layout Plain Layout
4655 
15-8
4656 
\end_layout
4657 
 
4658 
\end_inset
4659
4660
4661 
\begin_inset Text
4662 
 
4663 
\begin_layout Plain Layout
4664 
 
4665 
\family typewriter
4666 
watchdog_interval
4667 
\end_layout
4668 
 
4669 
\end_inset
4670
4671
4672 
\begin_inset Text
4673 
 
4674 
\begin_layout Plain Layout
4675 
w
4676 
\end_layout
4677 
 
4678 
\end_inset
4679
4680
4681
4682
4683 
\begin_inset Text
4684 
 
4685 
\begin_layout Plain Layout
4686 
 
4687 
\end_layout
4688 
 
4689 
\end_inset
4690
4691
4692 
\begin_inset Text
4693 
 
4694 
\begin_layout Plain Layout
4695 
 
4696 
\end_layout
4697 
 
4698 
\end_inset
4699
4700
4701 
\begin_inset Text
4702 
 
4703 
\begin_layout Plain Layout
4704 
3
4705 
\end_layout
4706 
 
4707 
\end_inset
4708
4709
4710 
\begin_inset Text
4711 
 
4712 
\begin_layout Plain Layout
4713 
 
4714 
\family typewriter
4715 
osd_enable
4716 
\end_layout
4717 
 
4718 
\end_inset
4719
4720
4721 
\begin_inset Text
4722 
 
4723 
\begin_layout Plain Layout
4724 
w
4725 
\end_layout
4726 
 
4727 
\end_inset
4728
4729
4730
4731
4732 
\begin_inset Text
4733 
 
4734 
\begin_layout Plain Layout
4735 
 
4736 
\end_layout
4737 
 
4738 
\end_inset
4739
4740
4741 
\begin_inset Text
4742 
 
4743 
\begin_layout Plain Layout
4744 
 
4745 
\end_layout
4746 
 
4747 
\end_inset
4748
4749
4750 
\begin_inset Text
4751 
 
4752 
\begin_layout Plain Layout
4753 
2
4754 
\end_layout
4755 
 
4756 
\end_inset
4757
4758
4759 
\begin_inset Text
4760 
 
4761 
\begin_layout Plain Layout
4762 
 
4763 
\family typewriter
4764 
picture_hdr_intr_en
4765 
\end_layout
4766 
 
4767 
\end_inset
4768
4769
4770 
\begin_inset Text
4771 
 
4772 
\begin_layout Plain Layout
4773 
w
4774 
\end_layout
4775 
 
4776 
\end_inset
4777
4778
4779
4780
4781 
\begin_inset Text
4782 
 
4783 
\begin_layout Plain Layout
4784 
 
4785 
\end_layout
4786 
 
4787 
\end_inset
4788
4789
4790 
\begin_inset Text
4791 
 
4792 
\begin_layout Plain Layout
4793 
 
4794 
\end_layout
4795 
 
4796 
\end_inset
4797
4798
4799 
\begin_inset Text
4800 
 
4801 
\begin_layout Plain Layout
4802 
1
4803 
\end_layout
4804 
 
4805 
\end_inset
4806
4807
4808 
\begin_inset Text
4809 
 
4810 
\begin_layout Plain Layout
4811 
 
4812 
\family typewriter
4813 
frame_end_intr_en
4814 
\end_layout
4815 
 
4816 
\end_inset
4817
4818
4819 
\begin_inset Text
4820 
 
4821 
\begin_layout Plain Layout
4822 
w
4823 
\end_layout
4824 
 
4825 
\end_inset
4826
4827
4828
4829
4830 
\begin_inset Text
4831 
 
4832 
\begin_layout Plain Layout
4833 
 
4834 
\end_layout
4835 
 
4836 
\end_inset
4837
4838
4839 
\begin_inset Text
4840 
 
4841 
\begin_layout Plain Layout
4842 
 
4843 
\end_layout
4844 
 
4845 
\end_inset
4846
4847
4848 
\begin_inset Text
4849 
 
4850 
\begin_layout Plain Layout
4851 
 
4852 
\end_layout
4853 
 
4854 
\end_inset
4855
4856
4857 
\begin_inset Text
4858 
 
4859 
\begin_layout Plain Layout
4860 
 
4861 
\family typewriter
4862 
video_ch_intr_en
4863 
\end_layout
4864 
 
4865 
\end_inset
4866
4867
4868 
\begin_inset Text
4869 
 
4870 
\begin_layout Plain Layout
4871 
w
4872 
\end_layout
4873 
 
4874 
\end_inset
4875
4876
4877
4878
4879 
\begin_inset Text
4880 
 
4881 
\begin_layout Plain Layout
4882 
1
4883 
\end_layout
4884 
 
4885 
\end_inset
4886
4887
4888 
\begin_inset Text
4889 
 
4890 
\begin_layout Plain Layout
4891 
horizontal
4892 
\end_layout
4893 
 
4894 
\end_inset
4895
4896
4897 
\begin_inset Text
4898 
 
4899 
\begin_layout Plain Layout
4900 
27-16
4901 
\end_layout
4902 
 
4903 
\end_inset
4904
4905
4906 
\begin_inset Text
4907 
 
4908 
\begin_layout Plain Layout
4909 
 
4910 
\family typewriter
4911 
horizontal_resolution
4912 
\end_layout
4913 
 
4914 
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4915
4916
4917 
\begin_inset Text
4918 
 
4919 
\begin_layout Plain Layout
4920 
w
4921 
\end_layout
4922 
 
4923 
\end_inset
4924
4925
4926
4927
4928 
\begin_inset Text
4929 
 
4930 
\begin_layout Plain Layout
4931 
 
4932 
\end_layout
4933 
 
4934 
\end_inset
4935
4936
4937 
\begin_inset Text
4938 
 
4939 
\begin_layout Plain Layout
4940 
 
4941 
\end_layout
4942 
 
4943 
\end_inset
4944
4945
4946 
\begin_inset Text
4947 
 
4948 
\begin_layout Plain Layout
4949 
11-0
4950 
\end_layout
4951 
 
4952 
\end_inset
4953
4954
4955 
\begin_inset Text
4956 
 
4957 
\begin_layout Plain Layout
4958 
 
4959 
\family typewriter
4960 
horizontal_length
4961 
\end_layout
4962 
 
4963 
\end_inset
4964
4965
4966 
\begin_inset Text
4967 
 
4968 
\begin_layout Plain Layout
4969 
w
4970 
\end_layout
4971 
 
4972 
\end_inset
4973
4974
4975
4976
4977 
\begin_inset Text
4978 
 
4979 
\begin_layout Plain Layout
4980 
2
4981 
\end_layout
4982 
 
4983 
\end_inset
4984
4985
4986 
\begin_inset Text
4987 
 
4988 
\begin_layout Plain Layout
4989 
horizontal sync
4990 
\end_layout
4991 
 
4992 
\end_inset
4993
4994
4995 
\begin_inset Text
4996 
 
4997 
\begin_layout Plain Layout
4998 
27-16
4999 
\end_layout
5000 
 
5001 
\end_inset
5002
5003
5004 
\begin_inset Text
5005 
 
5006 
\begin_layout Plain Layout
5007 
 
5008 
\family typewriter
5009 
horizontal_sync_start
5010 
\end_layout
5011 
 
5012 
\end_inset
5013
5014
5015 
\begin_inset Text
5016 
 
5017 
\begin_layout Plain Layout
5018 
w
5019 
\end_layout
5020 
 
5021 
\end_inset
5022
5023
5024
5025
5026 
\begin_inset Text
5027 
 
5028 
\begin_layout Plain Layout
5029 
 
5030 
\end_layout
5031 
 
5032 
\end_inset
5033
5034
5035 
\begin_inset Text
5036 
 
5037 
\begin_layout Plain Layout
5038 
 
5039 
\end_layout
5040 
 
5041 
\end_inset
5042
5043
5044 
\begin_inset Text
5045 
 
5046 
\begin_layout Plain Layout
5047 
11-0
5048 
\end_layout
5049 
 
5050 
\end_inset
5051
5052
5053 
\begin_inset Text
5054 
 
5055 
\begin_layout Plain Layout
5056 
 
5057 
\family typewriter
5058 
horizontal_sync_end
5059 
\end_layout
5060 
 
5061 
\end_inset
5062
5063
5064 
\begin_inset Text
5065 
 
5066 
\begin_layout Plain Layout
5067 
w
5068 
\end_layout
5069 
 
5070 
\end_inset
5071
5072
5073
5074
5075 
\begin_inset Text
5076 
 
5077 
\begin_layout Plain Layout
5078 
3
5079 
\end_layout
5080 
 
5081 
\end_inset
5082
5083
5084 
\begin_inset Text
5085 
 
5086 
\begin_layout Plain Layout
5087 
vertical
5088 
\end_layout
5089 
 
5090 
\end_inset
5091
5092
5093 
\begin_inset Text
5094 
 
5095 
\begin_layout Plain Layout
5096 
27-16
5097 
\end_layout
5098 
 
5099 
\end_inset
5100
5101
5102 
\begin_inset Text
5103 
 
5104 
\begin_layout Plain Layout
5105 
 
5106 
\family typewriter
5107 
vertical_resolution
5108 
\end_layout
5109 
 
5110 
\end_inset
5111
5112
5113 
\begin_inset Text
5114 
 
5115 
\begin_layout Plain Layout
5116 
w
5117 
\end_layout
5118 
 
5119 
\end_inset
5120
5121
5122
5123
5124 
\begin_inset Text
5125 
 
5126 
\begin_layout Plain Layout
5127 
 
5128 
\end_layout
5129 
 
5130 
\end_inset
5131
5132
5133 
\begin_inset Text
5134 
 
5135 
\begin_layout Plain Layout
5136 
 
5137 
\end_layout
5138 
 
5139 
\end_inset
5140
5141
5142 
\begin_inset Text
5143 
 
5144 
\begin_layout Plain Layout
5145 
11-0
5146 
\end_layout
5147 
 
5148 
\end_inset
5149
5150
5151 
\begin_inset Text
5152 
 
5153 
\begin_layout Plain Layout
5154 
 
5155 
\family typewriter
5156 
vertical_length
5157 
\end_layout
5158 
 
5159 
\end_inset
5160
5161
5162 
\begin_inset Text
5163 
 
5164 
\begin_layout Plain Layout
5165 
w
5166 
\end_layout
5167 
 
5168 
\end_inset
5169
5170
5171
5172
5173 
\begin_inset Text
5174 
 
5175 
\begin_layout Plain Layout
5176 
4
5177 
\end_layout
5178 
 
5179 
\end_inset
5180
5181
5182 
\begin_inset Text
5183 
 
5184 
\begin_layout Plain Layout
5185 
vertical sync
5186 
\end_layout
5187 
 
5188 
\end_inset
5189
5190
5191 
\begin_inset Text
5192 
 
5193 
\begin_layout Plain Layout
5194 
27-16
5195 
\end_layout
5196 
 
5197 
\end_inset
5198
5199
5200 
\begin_inset Text
5201 
 
5202 
\begin_layout Plain Layout
5203 
 
5204 
\family typewriter
5205 
vertical_sync_start
5206 
\end_layout
5207 
 
5208 
\end_inset
5209
5210
5211 
\begin_inset Text
5212 
 
5213 
\begin_layout Plain Layout
5214 
w
5215 
\end_layout
5216 
 
5217 
\end_inset
5218
5219
5220
5221
5222 
\begin_inset Text
5223 
 
5224 
\begin_layout Plain Layout
5225 
 
5226 
\end_layout
5227 
 
5228 
\end_inset
5229
5230
5231 
\begin_inset Text
5232 
 
5233 
\begin_layout Plain Layout
5234 
 
5235 
\end_layout
5236 
 
5237 
\end_inset
5238
5239
5240 
\begin_inset Text
5241 
 
5242 
\begin_layout Plain Layout
5243 
11-0
5244 
\end_layout
5245 
 
5246 
\end_inset
5247
5248
5249 
\begin_inset Text
5250 
 
5251 
\begin_layout Plain Layout
5252 
 
5253 
\family typewriter
5254 
vertical_sync_end
5255 
\end_layout
5256 
 
5257 
\end_inset
5258
5259
5260 
\begin_inset Text
5261 
 
5262 
\begin_layout Plain Layout
5263 
w
5264 
\end_layout
5265 
 
5266 
\end_inset
5267
5268
5269
5270
5271 
\begin_inset Text
5272 
 
5273 
\begin_layout Plain Layout
5274 
5
5275 
\end_layout
5276 
 
5277 
\end_inset
5278
5279
5280 
\begin_inset Text
5281 
 
5282 
\begin_layout Plain Layout
5283 
video mode
5284 
\end_layout
5285 
 
5286 
\end_inset
5287
5288
5289 
\begin_inset Text
5290 
 
5291 
\begin_layout Plain Layout
5292 
27-16
5293 
\end_layout
5294 
 
5295 
\end_inset
5296
5297
5298 
\begin_inset Text
5299 
 
5300 
\begin_layout Plain Layout
5301 
 
5302 
\family typewriter
5303 
horizontal_halfline
5304 
\end_layout
5305 
 
5306 
\end_inset
5307
5308
5309 
\begin_inset Text
5310 
 
5311 
\begin_layout Plain Layout
5312 
w
5313 
\end_layout
5314 
 
5315 
\end_inset
5316
5317
5318
5319
5320 
\begin_inset Text
5321 
 
5322 
\begin_layout Plain Layout
5323 
 
5324 
\end_layout
5325 
 
5326 
\end_inset
5327
5328
5329 
\begin_inset Text
5330 
 
5331 
\begin_layout Plain Layout
5332 
 
5333 
\end_layout
5334 
 
5335 
\end_inset
5336
5337
5338 
\begin_inset Text
5339 
 
5340 
\begin_layout Plain Layout
5341 
2
5342 
\end_layout
5343 
 
5344 
\end_inset
5345
5346
5347 
\begin_inset Text
5348 
 
5349 
\begin_layout Plain Layout
5350 
 
5351 
\family typewriter
5352 
clip_display_size
5353 
\end_layout
5354 
 
5355 
\end_inset
5356
5357
5358 
\begin_inset Text
5359 
 
5360 
\begin_layout Plain Layout
5361 
w
5362 
\end_layout
5363 
 
5364 
\end_inset
5365
5366
5367
5368
5369 
\begin_inset Text
5370 
 
5371 
\begin_layout Plain Layout
5372 
 
5373 
\end_layout
5374 
 
5375 
\end_inset
5376
5377
5378 
\begin_inset Text
5379 
 
5380 
\begin_layout Plain Layout
5381 
 
5382 
\end_layout
5383 
 
5384 
\end_inset
5385
5386
5387 
\begin_inset Text
5388 
 
5389 
\begin_layout Plain Layout
5390 
1
5391 
\end_layout
5392 
 
5393 
\end_inset
5394
5395
5396 
\begin_inset Text
5397 
 
5398 
\begin_layout Plain Layout
5399 
 
5400 
\family typewriter
5401 
pixel_repetition
5402 
\end_layout
5403 
 
5404 
\end_inset
5405
5406
5407 
\begin_inset Text
5408 
 
5409 
\begin_layout Plain Layout
5410 
w
5411 
\end_layout
5412 
 
5413 
\end_inset
5414
5415
5416
5417
5418 
\begin_inset Text
5419 
 
5420 
\begin_layout Plain Layout
5421 
 
5422 
\end_layout
5423 
 
5424 
\end_inset
5425
5426
5427 
\begin_inset Text
5428 
 
5429 
\begin_layout Plain Layout
5430 
 
5431 
\end_layout
5432 
 
5433 
\end_inset
5434
5435
5436 
\begin_inset Text
5437 
 
5438 
\begin_layout Plain Layout
5439 
 
5440 
\end_layout
5441 
 
5442 
\end_inset
5443
5444
5445 
\begin_inset Text
5446 
 
5447 
\begin_layout Plain Layout
5448 
 
5449 
\family typewriter
5450 
interlaced
5451 
\end_layout
5452 
 
5453 
\end_inset
5454
5455
5456 
\begin_inset Text
5457 
 
5458 
\begin_layout Plain Layout
5459 
w
5460 
\end_layout
5461 
 
5462 
\end_inset
5463
5464
5465
5466
5467 
\begin_inset Text
5468 
 
5469 
\begin_layout Plain Layout
5470 
6
5471 
\end_layout
5472 
 
5473 
\end_inset
5474
5475
5476 
\begin_inset Text
5477 
 
5478 
\begin_layout Plain Layout
5479 
osd clt yuvm
5480 
\end_layout
5481 
 
5482 
\end_inset
5483
5484
5485 
\begin_inset Text
5486 
 
5487 
\begin_layout Plain Layout
5488 
31-24
5489 
\end_layout
5490 
 
5491 
\end_inset
5492
5493
5494 
\begin_inset Text
5495 
 
5496 
\begin_layout Plain Layout
5497 
 
5498 
\family typewriter
5499 
y
5500 
\end_layout
5501 
 
5502 
\end_inset
5503
5504
5505 
\begin_inset Text
5506 
 
5507 
\begin_layout Plain Layout
5508 
w
5509 
\end_layout
5510 
 
5511 
\end_inset
5512
5513
5514
5515
5516 
\begin_inset Text
5517 
 
5518 
\begin_layout Plain Layout
5519 
 
5520 
\end_layout
5521 
 
5522 
\end_inset
5523
5524
5525 
\begin_inset Text
5526 
 
5527 
\begin_layout Plain Layout
5528 
 
5529 
\end_layout
5530 
 
5531 
\end_inset
5532
5533
5534 
\begin_inset Text
5535 
 
5536 
\begin_layout Plain Layout
5537 
23-16
5538 
\end_layout
5539 
 
5540 
\end_inset
5541
5542
5543 
\begin_inset Text
5544 
 
5545 
\begin_layout Plain Layout
5546 
 
5547 
\family typewriter
5548 
u
5549 
\end_layout
5550 
 
5551 
\end_inset
5552
5553
5554 
\begin_inset Text
5555 
 
5556 
\begin_layout Plain Layout
5557 
w
5558 
\end_layout
5559 
 
5560 
\end_inset
5561
5562
5563
5564
5565 
\begin_inset Text
5566 
 
5567 
\begin_layout Plain Layout
5568 
 
5569 
\end_layout
5570 
 
5571 
\end_inset
5572
5573
5574 
\begin_inset Text
5575 
 
5576 
\begin_layout Plain Layout
5577 
 
5578 
\end_layout
5579 
 
5580 
\end_inset
5581
5582
5583 
\begin_inset Text
5584 
 
5585 
\begin_layout Plain Layout
5586 
15-8
5587 
\end_layout
5588 
 
5589 
\end_inset
5590
5591
5592 
\begin_inset Text
5593 
 
5594 
\begin_layout Plain Layout
5595 
 
5596 
\family typewriter
5597 
v
5598 
\end_layout
5599 
 
5600 
\end_inset
5601
5602
5603 
\begin_inset Text
5604 
 
5605 
\begin_layout Plain Layout
5606 
w
5607 
\end_layout
5608 
 
5609 
\end_inset
5610
5611
5612
5613
5614 
\begin_inset Text
5615 
 
5616 
\begin_layout Plain Layout
5617 
 
5618 
\end_layout
5619 
 
5620 
\end_inset
5621
5622
5623 
\begin_inset Text
5624 
 
5625 
\begin_layout Plain Layout
5626 
 
5627 
\end_layout
5628 
 
5629 
\end_inset
5630
5631
5632 
\begin_inset Text
5633 
 
5634 
\begin_layout Plain Layout
5635 
7-0
5636 
\end_layout
5637 
 
5638 
\end_inset
5639
5640
5641 
\begin_inset Text
5642 
 
5643 
\begin_layout Plain Layout
5644 
 
5645 
\family typewriter
5646 
osd_clt_mode
5647 
\end_layout
5648 
 
5649 
\end_inset
5650
5651
5652 
\begin_inset Text
5653 
 
5654 
\begin_layout Plain Layout
5655 
w
5656 
\end_layout
5657 
 
5658 
\end_inset
5659
5660
5661
5662
5663 
\begin_inset Text
5664 
 
5665 
\begin_layout Plain Layout
5666 
7
5667 
\end_layout
5668 
 
5669 
\end_inset
5670
5671
5672 
\begin_inset Text
5673 
 
5674 
\begin_layout Plain Layout
5675 
osd clt addr
5676 
\end_layout
5677 
 
5678 
\end_inset
5679
5680
5681 
\begin_inset Text
5682 
 
5683 
\begin_layout Plain Layout
5684 
7-0
5685 
\end_layout
5686 
 
5687 
\end_inset
5688
5689
5690 
\begin_inset Text
5691 
 
5692 
\begin_layout Plain Layout
5693 
 
5694 
\family typewriter
5695 
osd_clt_addr
5696 
\end_layout
5697 
 
5698 
\end_inset
5699
5700
5701 
\begin_inset Text
5702 
 
5703 
\begin_layout Plain Layout
5704 
w
5705 
\end_layout
5706 
 
5707 
\end_inset
5708
5709
5710
5711
5712 
\begin_inset Text
5713 
 
5714 
\begin_layout Plain Layout
5715 
8
5716 
\end_layout
5717 
 
5718 
\end_inset
5719
5720
5721 
\begin_inset Text
5722 
 
5723 
\begin_layout Plain Layout
5724 
osd dta high
5725 
\end_layout
5726 
 
5727 
\end_inset
5728
5729
5730 
\begin_inset Text
5731 
 
5732 
\begin_layout Plain Layout
5733 
31-0
5734 
\end_layout
5735 
 
5736 
\end_inset
5737
5738
5739 
\begin_inset Text
5740 
 
5741 
\begin_layout Plain Layout
5742 
 
5743 
\family typewriter
5744 
osd_dta_high
5745 
\end_layout
5746 
 
5747 
\end_inset
5748
5749
5750 
\begin_inset Text
5751 
 
5752 
\begin_layout Plain Layout
5753 
w
5754 
\end_layout
5755 
 
5756 
\end_inset
5757
5758
5759
5760
5761 
\begin_inset Text
5762 
 
5763 
\begin_layout Plain Layout
5764 
9
5765 
\end_layout
5766 
 
5767 
\end_inset
5768
5769
5770 
\begin_inset Text
5771 
 
5772 
\begin_layout Plain Layout
5773 
osd dta low
5774 
\end_layout
5775 
 
5776 
\end_inset
5777
5778
5779 
\begin_inset Text
5780 
 
5781 
\begin_layout Plain Layout
5782 
31-0
5783 
\end_layout
5784 
 
5785 
\end_inset
5786
5787
5788 
\begin_inset Text
5789 
 
5790 
\begin_layout Plain Layout
5791 
 
5792 
\family typewriter
5793 
osd_dta_low
5794 
\end_layout
5795 
 
5796 
\end_inset
5797
5798
5799 
\begin_inset Text
5800 
 
5801 
\begin_layout Plain Layout
5802 
w
5803 
\end_layout
5804 
 
5805 
\end_inset
5806
5807
5808
5809
5810 
\begin_inset Text
5811 
 
5812 
\begin_layout Plain Layout
5813 
a
5814 
\end_layout
5815 
 
5816 
\end_inset
5817
5818
5819 
\begin_inset Text
5820 
 
5821 
\begin_layout Plain Layout
5822 
osd_addr
5823 
\end_layout
5824 
 
5825 
\end_inset
5826
5827
5828 
\begin_inset Text
5829 
 
5830 
\begin_layout Plain Layout
5831 
31-29
5832 
\end_layout
5833 
 
5834 
\end_inset
5835
5836
5837 
\begin_inset Text
5838 
 
5839 
\begin_layout Plain Layout
5840 
 
5841 
\family typewriter
5842 
osd_frame
5843 
\end_layout
5844 
 
5845 
\end_inset
5846
5847
5848 
\begin_inset Text
5849 
 
5850 
\begin_layout Plain Layout
5851 
w
5852 
\end_layout
5853 
 
5854 
\end_inset
5855
5856
5857
5858
5859 
\begin_inset Text
5860 
 
5861 
\begin_layout Plain Layout
5862 
 
5863 
\end_layout
5864 
 
5865 
\end_inset
5866
5867
5868 
\begin_inset Text
5869 
 
5870 
\begin_layout Plain Layout
5871 
 
5872 
\end_layout
5873 
 
5874 
\end_inset
5875
5876
5877 
\begin_inset Text
5878 
 
5879 
\begin_layout Plain Layout
5880 
28-27
5881 
\end_layout
5882 
 
5883 
\end_inset
5884
5885
5886 
\begin_inset Text
5887 
 
5888 
\begin_layout Plain Layout
5889 
 
5890 
\family typewriter
5891 
osd_comp
5892 
\end_layout
5893 
 
5894 
\end_inset
5895
5896
5897 
\begin_inset Text
5898 
 
5899 
\begin_layout Plain Layout
5900 
w
5901 
\end_layout
5902 
 
5903 
\end_inset
5904
5905
5906
5907
5908 
\begin_inset Text
5909 
 
5910 
\begin_layout Plain Layout
5911 
 
5912 
\end_layout
5913 
 
5914 
\end_inset
5915
5916
5917 
\begin_inset Text
5918 
 
5919 
\begin_layout Plain Layout
5920 
 
5921 
\end_layout
5922 
 
5923 
\end_inset
5924
5925
5926 
\begin_inset Text
5927 
 
5928 
\begin_layout Plain Layout
5929 
26-16
5930 
\end_layout
5931 
 
5932 
\end_inset
5933
5934
5935 
\begin_inset Text
5936 
 
5937 
\begin_layout Plain Layout
5938 
 
5939 
\family typewriter
5940 
osd_addr_x
5941 
\end_layout
5942 
 
5943 
\end_inset
5944
5945
5946 
\begin_inset Text
5947 
 
5948 
\begin_layout Plain Layout
5949 
w
5950 
\end_layout
5951 
 
5952 
\end_inset
5953
5954
5955
5956
5957 
\begin_inset Text
5958 
 
5959 
\begin_layout Plain Layout
5960 
 
5961 
\end_layout
5962 
 
5963 
\end_inset
5964
5965
5966 
\begin_inset Text
5967 
 
5968 
\begin_layout Plain Layout
5969 
 
5970 
\end_layout
5971 
 
5972 
\end_inset
5973
5974
5975 
\begin_inset Text
5976 
 
5977 
\begin_layout Plain Layout
5978 
10-0
5979 
\end_layout
5980 
 
5981 
\end_inset
5982
5983
5984 
\begin_inset Text
5985 
 
5986 
\begin_layout Plain Layout
5987 
 
5988 
\family typewriter
5989 
osd_addr_y
5990 
\end_layout
5991 
 
5992 
\end_inset
5993
5994
5995 
\begin_inset Text
5996 
 
5997 
\begin_layout Plain Layout
5998 
w
5999 
\end_layout
6000 
 
6001 
\end_inset
6002
6003
6004
6005
6006 
\begin_inset Text
6007 
 
6008 
\begin_layout Plain Layout
6009 
b
6010 
\end_layout
6011 
 
6012 
\end_inset
6013
6014
6015 
\begin_inset Text
6016 
 
6017 
\begin_layout Plain Layout
6018 
trick mode
6019 
\end_layout
6020 
 
6021 
\end_inset
6022
6023
6024 
\begin_inset Text
6025 
 
6026 
\begin_layout Plain Layout
6027 
10
6028 
\end_layout
6029 
 
6030 
\end_inset
6031
6032
6033 
\begin_inset Text
6034 
 
6035 
\begin_layout Plain Layout
6036 
 
6037 
\family typewriter
6038 
deinterlace
6039 
\end_layout
6040 
 
6041 
\end_inset
6042
6043
6044 
\begin_inset Text
6045 
 
6046 
\begin_layout Plain Layout
6047 
w
6048 
\end_layout
6049 
 
6050 
\end_inset
6051
6052
6053
6054
6055 
\begin_inset Text
6056 
 
6057 
\begin_layout Plain Layout
6058 
 
6059 
\end_layout
6060 
 
6061 
\end_inset
6062
6063
6064 
\begin_inset Text
6065 
 
6066 
\begin_layout Plain Layout
6067 
 
6068 
\end_layout
6069 
 
6070 
\end_inset
6071
6072
6073 
\begin_inset Text
6074 
 
6075 
\begin_layout Plain Layout
6076 
9-5
6077 
\end_layout
6078 
 
6079 
\end_inset
6080
6081
6082 
\begin_inset Text
6083 
 
6084 
\begin_layout Plain Layout
6085 
 
6086 
\family typewriter
6087 
repeat_frame
6088 
\end_layout
6089 
 
6090 
\end_inset
6091
6092
6093 
\begin_inset Text
6094 
 
6095 
\begin_layout Plain Layout
6096 
w
6097 
\end_layout
6098 
 
6099 
\end_inset
6100
6101
6102
6103
6104 
\begin_inset Text
6105 
 
6106 
\begin_layout Plain Layout
6107 
 
6108 
\end_layout
6109 
 
6110 
\end_inset
6111
6112
6113 
\begin_inset Text
6114 
 
6115 
\begin_layout Plain Layout
6116 
 
6117 
\end_layout
6118 
 
6119 
\end_inset
6120
6121
6122 
\begin_inset Text
6123 
 
6124 
\begin_layout Plain Layout
6125 
4
6126 
\end_layout
6127 
 
6128 
\end_inset
6129
6130
6131 
\begin_inset Text
6132 
 
6133 
\begin_layout Plain Layout
6134 
 
6135 
\family typewriter
6136 
persistence
6137 
\end_layout
6138 
 
6139 
\end_inset
6140
6141
6142 
\begin_inset Text
6143 
 
6144 
\begin_layout Plain Layout
6145 
w
6146 
\end_layout
6147 
 
6148 
\end_inset
6149
6150
6151
6152
6153 
\begin_inset Text
6154 
 
6155 
\begin_layout Plain Layout
6156 
 
6157 
\end_layout
6158 
 
6159 
\end_inset
6160
6161
6162 
\begin_inset Text
6163 
 
6164 
\begin_layout Plain Layout
6165 
 
6166 
\end_layout
6167 
 
6168 
\end_inset
6169
6170
6171 
\begin_inset Text
6172 
 
6173 
\begin_layout Plain Layout
6174 
3-1
6175 
\end_layout
6176 
 
6177 
\end_inset
6178
6179
6180 
\begin_inset Text
6181 
 
6182 
\begin_layout Plain Layout
6183 
 
6184 
\family typewriter
6185 
source_select
6186 
\end_layout
6187 
 
6188 
\end_inset
6189
6190
6191 
\begin_inset Text
6192 
 
6193 
\begin_layout Plain Layout
6194 
w
6195 
\end_layout
6196 
 
6197 
\end_inset
6198
6199
6200
6201
6202 
\begin_inset Text
6203 
 
6204 
\begin_layout Plain Layout
6205 
 
6206 
\end_layout
6207 
 
6208 
\end_inset
6209
6210
6211 
\begin_inset Text
6212 
 
6213 
\begin_layout Plain Layout
6214 
 
6215 
\end_layout
6216 
 
6217 
\end_inset
6218
6219
6220 
\begin_inset Text
6221 
 
6222 
\begin_layout Plain Layout
6223 
 
6224 
\end_layout
6225 
 
6226 
\end_inset
6227
6228
6229 
\begin_inset Text
6230 
 
6231 
\begin_layout Plain Layout
6232 
 
6233 
\family typewriter
6234 
flush_vbuf
6235 
\end_layout
6236 
 
6237 
\end_inset
6238
6239
6240 
\begin_inset Text
6241 
 
6242 
\begin_layout Plain Layout
6243 
w
6244 
\end_layout
6245 
 
6246 
\end_inset
6247
6248
6249
6250
6251 
\begin_inset Text
6252 
 
6253 
\begin_layout Plain Layout
6254 
f
6255 
\end_layout
6256 
 
6257 
\end_inset
6258
6259
6260 
\begin_inset Text
6261 
 
6262 
\begin_layout Plain Layout
6263 
testpoint
6264 
\end_layout
6265 
 
6266 
\end_inset
6267
6268
6269 
\begin_inset Text
6270 
 
6271 
\begin_layout Plain Layout
6272 
3-0
6273 
\end_layout
6274 
 
6275 
\end_inset
6276
6277
6278 
\begin_inset Text
6279 
 
6280 
\begin_layout Plain Layout
6281 
 
6282 
\family typewriter
6283 
testpoint_sel
6284 
\end_layout
6285 
 
6286 
\end_inset
6287
6288
6289 
\begin_inset Text
6290 
 
6291 
\begin_layout Plain Layout
6292 
w
6293 
\end_layout
6294 
 
6295 
\end_inset
6296
6297
6298
6299 
 
6300 
\end_inset
6301 
 
6302 
 
6303 
\end_layout
6304 
 
6305 
\begin_layout Plain Layout
6306 
\begin_inset Caption Standard
6307 
 
6308 
\begin_layout Plain Layout
6309 
\begin_inset CommandInset label
6310 
LatexCommand label
6311 
name "tab:Write-mode-Registers"
6312 
 
6313 
\end_inset
6314 
 
6315 
Write-mode Registers
6316 
\end_layout
6317 
 
6318 
\end_inset
6319 
 
6320 
 
6321 
\end_layout
6322 
 
6323 
\end_inset
6324 
 
6325 
 
6326 
\end_layout
6327 
 
6328 
\begin_layout Section
6329 
Read-only Registers
6330 
\end_layout
6331 
 
6332 
\begin_layout Labeling
6333 
\labelwidthstring 00.00.0000
6334 
 
6335 
\family typewriter
6336 
version
6337 
\family default
6338 
 contains a non-zero FPGA bitstream (hardware) version number.
6339 
  Software should at least print a warning
6340 
\family typewriter
6341 
 
6342 
\begin_inset Quotes eld
6343 
\end_inset
6344 
 
6345 
Warning: hardware version (%i.%i) more recent than software driver
6346 
\begin_inset Quotes erd
6347 
\end_inset
6348 
 
6349 
 
6350 
\family default
6351 
 if the hardware version is higher than expected.
6352 
\end_layout
6353 
 
6354 
\begin_layout Labeling
6355 
\labelwidthstring 00.00.0000
6356 
 
6357 
\family typewriter
6358 
picture_hdr
6359 
\family default
6360 
 is set whenever an picture header is encountered in the bitstream.
6361 
 
6362 
\family typewriter
6363 
picture_hdr
6364 
\family default
6365 
 is cleared whenever the status register is read.
6366 
 In a well-behaved MPEG-2 stream,
6367 
\family typewriter
6368 
horizontal_size
6369 
\family default
6370 
,
6371 
\family typewriter
6372 
vertical_size
6373 
\family default
6374 
,
6375 
\family typewriter
6376 
display_horizontal_size
6377 
\family default
6378 
,
6379 
\family typewriter
6380 
display_vertical_size, aspect_ratio_information
6381 
\family default
6382 
 and
6383 
\family typewriter
6384 
frame_rate
6385 
\family default
6386 
 will have meaningful values when a picture header is encountered.
6387 
\end_layout
6388 
 
6389 
\begin_layout Labeling
6390 
\labelwidthstring 00.00.0000
6391 
 
6392 
\family typewriter
6393 
frame_end
6394 
\family default
6395 
 is set when video vertical synchronization begins.
6396 
 
6397 
\family typewriter
6398 
frame_end
6399 
\family default
6400 
 is cleared whenever the status register is read.
6401 
\end_layout
6402 
 
6403 
\begin_layout Labeling
6404 
\labelwidthstring 00.00.0000
6405 
 
6406 
\family typewriter
6407 
video_ch
6408 
\family default
6409 
 is set whenever video resolution or frame rate changes.
6410 
 
6411 
\family typewriter
6412 
video_ch
6413 
\family default
6414 
 is cleared whenever the status register is read.
6415 
\end_layout
6416 
 
6417 
\begin_layout Labeling
6418 
\labelwidthstring 00.00.0000
6419 
 
6420 
\family typewriter
6421 
error
6422 
\family default
6423 
 is set when variable length decoding cannot parse the bitstream.
6424 
 
6425 
\family typewriter
6426 
error
6427 
\family default
6428 
 is cleared whenever the status register is read.
6429 
\end_layout
6430 
 
6431 
\begin_layout Labeling
6432 
\labelwidthstring 00.00.0000
6433 
 
6434 
\family typewriter
6435 
watchdog_status
6436 
\family default
6437 
 is high if the watchdog timer expired.
6438 
 
6439 
\family typewriter
6440 
watchdog_status
6441 
\family default
6442 
 is cleared whenever the status register is read.
6443 
\end_layout
6444 
 
6445 
\begin_layout Labeling
6446 
\labelwidthstring 00.00.0000
6447 
 
6448 
\family typewriter
6449 
horizontal_size
6450 
\family default
6451 
 is defined in ISO/IEC 13818-2, par.
6452 
  6.2.2.1, par.
6453 
 6.3.3.
6454 
\end_layout
6455 
 
6456 
\begin_layout Labeling
6457 
\labelwidthstring 00.00.0000
6458 
 
6459 
\family typewriter
6460 
vertical_size
6461 
\family default
6462 
 is defined in ISO/IEC 13818-2, par.
6463 
  6.2.2.1, par.
6464 
 6.3.3.
6465 
\end_layout
6466 
 
6467 
\begin_layout Labeling
6468 
\labelwidthstring 00.00.0000
6469 
 
6470 
\family typewriter
6471 
display_horizontal_size
6472 
\family default
6473 
 is defined in ISO/IEC 13818-2, par.
6474 
  6.2.2.4, par.
6475 
 6.3.6.
6476 
\end_layout
6477 
 
6478 
\begin_layout Labeling
6479 
\labelwidthstring 00.00.0000
6480 
 
6481 
\family typewriter
6482 
display_vertical_size
6483 
\family default
6484 
 is defined in ISO/IEC 13818-2, par.
6485 
  6.2.2.4, par.
6486 
 6.3.6.
6487 
\end_layout
6488 
 
6489 
\begin_layout Labeling
6490 
\labelwidthstring 00.00.0000
6491 
 
6492 
\family typewriter
6493 
aspect_ratio_information
6494 
\family default
6495 
 is defined in ISO/IEC 13818-2, par.
6496 
  6.3.3.
6497 
\end_layout
6498 
 
6499 
\begin_layout Labeling
6500 
\labelwidthstring 00.00.0000
6501 
 
6502 
\family typewriter
6503 
matrix_coefficients
6504 
\family default
6505 
 is defined in ISO/IEC 13818-2, par.
6506 
  6.3.6.
6507 
\end_layout
6508 
 
6509 
\begin_layout Labeling
6510 
\labelwidthstring 00.00.0000
6511 
 
6512 
\family typewriter
6513 
frame_rate_extension_n
6514 
\family default
6515 
 is defined in ISO/IEC 13818-2, par.
6516 
  6.3.3, par.
6517 
 6.3.5.
6518 
\end_layout
6519 
 
6520 
\begin_layout Labeling
6521 
\labelwidthstring 00.00.0000
6522 
 
6523 
\family typewriter
6524 
frame_rate_code
6525 
\family default
6526 
 is defined in ISO/IEC 13818-2, par.
6527 
  6.3.3, Table 6-4.
6528 
\end_layout
6529 
 
6530 
\begin_layout Labeling
6531 
\labelwidthstring 00.00.0000
6532 
 
6533 
\family typewriter
6534 
progressive_sequence
6535 
\family default
6536 
 is defined in ISO/IEC 13818-2, par.
6537 
  6.3.5.
6538 
\end_layout
6539 
 
6540 
\begin_layout Labeling
6541 
\labelwidthstring 00.00.0000
6542 
 
6543 
\family typewriter
6544 
frame_rate_extension_d
6545 
\family default
6546 
 is defined in ISO/IEC 13818-2, par.
6547 
  6.3.3, par.
6548 
 6.3.5.
6549 
\end_layout
6550 
 
6551 
\begin_layout Section
6552 
On-Screen Display
6553 
\end_layout
6554 
 
6555 
\begin_layout Standard
6556 
\begin_inset CommandInset label
6557 
LatexCommand label
6558 
name "sec:On-Screen-Display"
6559 
 
6560 
\end_inset
6561 
 
6562 
The OSD has the same resolution and aspect ratio as the MPEG-2 video being
6563 
 displayed.
6564 
 If no MPEG-2 video is being displayed, the OSD is undefined.
6565 
 Note feeding the decoder a simple MPEG-2 sequence header with
6566 
\family typewriter
6567 
horizontal_size
6568 
\family default
6569 
 and
6570 
\family typewriter
6571 
vertical_size
6572 
\family default
6573 
 already satisfies the requirements for using the OSD.
6574 
\end_layout
6575 
 
6576 
\begin_layout Standard
6577 
The OSD is only shown if there is video output.
6578 
 If one wishes to display an OSD when no MPEG2 video is being reproduced,
6579 
 video output can be forced by setting
6580 
\family typewriter
6581 
source_select
6582 
\family default
6583 
 to 4, 5, 6 or 7.
6584 
\begin_inset Separator latexpar
6585 
\end_inset
6586 
 
6587 
 
6588 
\end_layout
6589 
 
6590 
\begin_layout Standard
6591 
The OSD may use up to 256 different colors.
6592 
 The OSD color lookup table (CLT) stores
6593 
\family typewriter
6594 
y
6595 
\family default
6596 
,
6597 
\family typewriter
6598 
u
6599 
\family default
6600 
,
6601 
\family typewriter
6602 
v
6603 
\family default
6604 
 and
6605 
\family typewriter
6606 
osd_clt_mode
6607 
\family default
6608 
 data for each color.
6609 
 The
6610 
\family typewriter
6611 
y
6612 
\family default
6613 
,
6614 
\family typewriter
6615 
u
6616 
\family default
6617 
 and
6618 
\family typewriter
6619 
v
6620 
\family default
6621 
 values are interpreted as defined by
6622 
\family typewriter
6623 
matrix_coefficients
6624 
\family default
6625 
.
6626 
 The
6627 
\family typewriter
6628 
osd_clt_mode
6629 
\family default
6630 
 value determines the color displayed according to Table
6631 
\begin_inset CommandInset ref
6632 
LatexCommand ref
6633 
reference "tab:On-Screen-Display-Modes"
6634 
 
6635 
\end_inset
6636 
 
6637 
.
6638 
 
6639 
\begin_inset Float table
6640 
wide false
6641 
sideways false
6642 
status open
6643 
 
6644 
\begin_layout Plain Layout
6645 
\align center
6646 
\begin_inset Tabular
6647
6648
6649
6650
6651
6652
6653 
\begin_inset Text
6654 
 
6655 
\begin_layout Plain Layout
6656 
osd_clt_mode
6657 
\end_layout
6658 
 
6659 
\end_inset
6660
6661
6662 
\begin_inset Text
6663 
 
6664 
\begin_layout Plain Layout
6665 
Comment
6666 
\end_layout
6667 
 
6668 
\end_inset
6669
6670
6671
6672
6673 
\begin_inset Text
6674 
 
6675 
\begin_layout Plain Layout
6676 
xxx00000
6677 
\end_layout
6678 
 
6679 
\end_inset
6680
6681
6682 
\begin_inset Text
6683 
 
6684 
\begin_layout Plain Layout
6685 
alpha = 0/16
6686 
\end_layout
6687 
 
6688 
\end_inset
6689
6690
6691
6692
6693 
\begin_inset Text
6694 
 
6695 
\begin_layout Plain Layout
6696 
xxx00001
6697 
\end_layout
6698 
 
6699 
\end_inset
6700
6701
6702 
\begin_inset Text
6703 
 
6704 
\begin_layout Plain Layout
6705 
alpha = 1/16
6706 
\end_layout
6707 
 
6708 
\end_inset
6709
6710
6711
6712
6713 
\begin_inset Text
6714 
 
6715 
\begin_layout Plain Layout
6716 
xxx00010
6717 
\end_layout
6718 
 
6719 
\end_inset
6720
6721
6722 
\begin_inset Text
6723 
 
6724 
\begin_layout Plain Layout
6725 
alpha = 2/16
6726 
\end_layout
6727 
 
6728 
\end_inset
6729
6730
6731
6732
6733 
\begin_inset Text
6734 
 
6735 
\begin_layout Plain Layout
6736 
xxx00011
6737 
\end_layout
6738 
 
6739 
\end_inset
6740
6741
6742 
\begin_inset Text
6743 
 
6744 
\begin_layout Plain Layout
6745 
alpha = 3/16
6746 
\end_layout
6747 
 
6748 
\end_inset
6749
6750
6751
6752
6753 
\begin_inset Text
6754 
 
6755 
\begin_layout Plain Layout
6756 
xxx00100
6757 
\end_layout
6758 
 
6759 
\end_inset
6760
6761
6762 
\begin_inset Text
6763 
 
6764 
\begin_layout Plain Layout
6765 
alpha = 4/16
6766 
\end_layout
6767 
 
6768 
\end_inset
6769
6770
6771
6772
6773 
\begin_inset Text
6774 
 
6775 
\begin_layout Plain Layout
6776 
xxx00101
6777 
\end_layout
6778 
 
6779 
\end_inset
6780
6781
6782 
\begin_inset Text
6783 
 
6784 
\begin_layout Plain Layout
6785 
alpha = 5/16
6786 
\end_layout
6787 
 
6788 
\end_inset
6789
6790
6791
6792
6793 
\begin_inset Text
6794 
 
6795 
\begin_layout Plain Layout
6796 
xxx00110
6797 
\end_layout
6798 
 
6799 
\end_inset
6800
6801
6802 
\begin_inset Text
6803 
 
6804 
\begin_layout Plain Layout
6805 
alpha = 6/16
6806 
\end_layout
6807 
 
6808 
\end_inset
6809
6810
6811
6812
6813 
\begin_inset Text
6814 
 
6815 
\begin_layout Plain Layout
6816 
xxx00111
6817 
\end_layout
6818 
 
6819 
\end_inset
6820
6821
6822 
\begin_inset Text
6823 
 
6824 
\begin_layout Plain Layout
6825 
alpha = 7/16
6826 
\end_layout
6827 
 
6828 
\end_inset
6829
6830
6831
6832
6833 
\begin_inset Text
6834 
 
6835 
\begin_layout Plain Layout
6836 
xxx01000
6837 
\end_layout
6838 
 
6839 
\end_inset
6840
6841
6842 
\begin_inset Text
6843 
 
6844 
\begin_layout Plain Layout
6845 
alpha = 8/16
6846 
\end_layout
6847 
 
6848 
\end_inset
6849
6850
6851
6852
6853 
\begin_inset Text
6854 
 
6855 
\begin_layout Plain Layout
6856 
xxx01001
6857 
\end_layout
6858 
 
6859 
\end_inset
6860
6861
6862 
\begin_inset Text
6863 
 
6864 
\begin_layout Plain Layout
6865 
alpha = 9/16
6866 
\end_layout
6867 
 
6868 
\end_inset
6869
6870
6871
6872
6873 
\begin_inset Text
6874 
 
6875 
\begin_layout Plain Layout
6876 
xxx01010
6877 
\end_layout
6878 
 
6879 
\end_inset
6880
6881
6882 
\begin_inset Text
6883 
 
6884 
\begin_layout Plain Layout
6885 
alpha = 10/16
6886 
\end_layout
6887 
 
6888 
\end_inset
6889
6890
6891
6892
6893 
\begin_inset Text
6894 
 
6895 
\begin_layout Plain Layout
6896 
xxx01011
6897 
\end_layout
6898 
 
6899 
\end_inset
6900
6901
6902 
\begin_inset Text
6903 
 
6904 
\begin_layout Plain Layout
6905 
alpha = 11/16
6906 
\end_layout
6907 
 
6908 
\end_inset
6909
6910
6911
6912
6913 
\begin_inset Text
6914 
 
6915 
\begin_layout Plain Layout
6916 
xxx01100
6917 
\end_layout
6918 
 
6919 
\end_inset
6920
6921
6922 
\begin_inset Text
6923 
 
6924 
\begin_layout Plain Layout
6925 
alpha = 12/16
6926 
\end_layout
6927 
 
6928 
\end_inset
6929
6930
6931
6932
6933 
\begin_inset Text
6934 
 
6935 
\begin_layout Plain Layout
6936 
xxx01101
6937 
\end_layout
6938 
 
6939 
\end_inset
6940
6941
6942 
\begin_inset Text
6943 
 
6944 
\begin_layout Plain Layout
6945 
alpha = 13/16
6946 
\end_layout
6947 
 
6948 
\end_inset
6949
6950
6951
6952
6953 
\begin_inset Text
6954 
 
6955 
\begin_layout Plain Layout
6956 
xxx01110
6957 
\end_layout
6958 
 
6959 
\end_inset
6960
6961
6962 
\begin_inset Text
6963 
 
6964 
\begin_layout Plain Layout
6965 
alpha = 14/16
6966 
\end_layout
6967 
 
6968 
\end_inset
6969
6970
6971
6972
6973 
\begin_inset Text
6974 
 
6975 
\begin_layout Plain Layout
6976 
xxx01111
6977 
\end_layout
6978 
 
6979 
\end_inset
6980
6981
6982 
\begin_inset Text
6983 
 
6984 
\begin_layout Plain Layout
6985 
alpha = 15/16
6986 
\end_layout
6987 
 
6988 
\end_inset
6989
6990
6991
6992
6993 
\begin_inset Text
6994 
 
6995 
\begin_layout Plain Layout
6996 
xxx11111
6997 
\end_layout
6998 
 
6999 
\end_inset
7000
7001
7002 
\begin_inset Text
7003 
 
7004 
\begin_layout Plain Layout
7005 
alpha = 16/16
7006 
\end_layout
7007 
 
7008 
\end_inset
7009
7010
7011
7012
7013 
\begin_inset Text
7014 
 
7015 
\begin_layout Plain Layout
7016 
xx0xxxxx
7017 
\end_layout
7018 
 
7019 
\end_inset
7020
7021
7022 
\begin_inset Text
7023 
 
7024 
\begin_layout Plain Layout
7025 
attenuate video pixel by alpha
7026 
\end_layout
7027 
 
7028 
\end_inset
7029
7030
7031
7032
7033 
\begin_inset Text
7034 
 
7035 
\begin_layout Plain Layout
7036 
xx1xxxxx
7037 
\end_layout
7038 
 
7039 
\end_inset
7040
7041
7042 
\begin_inset Text
7043 
 
7044 
\begin_layout Plain Layout
7045 
alpha blend osd and video pixel
7046 
\end_layout
7047 
 
7048 
\end_inset
7049
7050
7051
7052
7053 
\begin_inset Text
7054 
 
7055 
\begin_layout Plain Layout
7056 
00xxxxxx
7057 
\end_layout
7058 
 
7059 
\end_inset
7060
7061
7062 
\begin_inset Text
7063 
 
7064 
\begin_layout Plain Layout
7065 
display video pixel
7066 
\end_layout
7067 
 
7068 
\end_inset
7069
7070
7071
7072
7073 
\begin_inset Text
7074 
 
7075 
\begin_layout Plain Layout
7076 
01xxxxxx
7077 
\end_layout
7078 
 
7079 
\end_inset
7080
7081
7082 
\begin_inset Text
7083 
 
7084 
\begin_layout Plain Layout
7085 
display attenuated/alpha blended pixel
7086 
\end_layout
7087 
 
7088 
\end_inset
7089
7090
7091
7092
7093 
\begin_inset Text
7094 
 
7095 
\begin_layout Plain Layout
7096 
10xxxxxx
7097 
\end_layout
7098 
 
7099 
\end_inset
7100
7101
7102 
\begin_inset Text
7103 
 
7104 
\begin_layout Plain Layout
7105 
display osd pixel
7106 
\end_layout
7107 
 
7108 
\end_inset
7109
7110
7111
7112
7113 
\begin_inset Text
7114 
 
7115 
\begin_layout Plain Layout
7116 
11xxxxxx
7117 
\end_layout
7118 
 
7119 
\end_inset
7120
7121
7122 
\begin_inset Text
7123 
 
7124 
\begin_layout Plain Layout
7125 
display blinking osd pixel
7126 
\end_layout
7127 
 
7128 
\end_inset
7129
7130
7131
7132 
 
7133 
\end_inset
7134 
 
7135 
 
7136 
\end_layout
7137 
 
7138 
\begin_layout Plain Layout
7139 
\begin_inset Caption Standard
7140 
 
7141 
\begin_layout Plain Layout
7142 
\begin_inset CommandInset label
7143 
LatexCommand label
7144 
name "tab:On-Screen-Display-Modes"
7145 
 
7146 
\end_inset
7147 
 
7148 
On-Screen Display Modes
7149 
\end_layout
7150 
 
7151 
\end_inset
7152 
 
7153 
 
7154 
\end_layout
7155 
 
7156 
\end_inset
7157 
 
7158 
The different modes combine osd and video in various ways:
7159 
\end_layout
7160 
 
7161 
\begin_layout Itemize
7162 
video.
7163 
 This is the normal mode of operation.
7164 
\end_layout
7165 
 
7166 
\begin_layout Itemize
7167 
attenuated video.
7168 
 16 discrete levels of attenuation can be used to fade video in or out.
7169 
\end_layout
7170 
 
7171 
\begin_layout Itemize
7172 
on-screen display.
7173 
\end_layout
7174 
 
7175 
\begin_layout Itemize
7176 
blend of on-screen display and video.
7177 
 16 discrete levels of translucency.
7178 
\end_layout
7179 
 
7180 
\begin_layout Itemize
7181 
blinking on-screen display.
7182 
 Alternates between osd pixel and attenuated/alpha blended video pixel with
7183 
 a frequency of about one second.
7184 
\end_layout
7185 
 
7186 
\begin_layout Labeling
7187 
\labelwidthstring 00.00.0000
7188 
 
7189 
\family typewriter
7190 
osd_enable
7191 
\family default
7192 
 determines whether the On-Screen Display is shown or not.
7193 
  If
7194 
\family typewriter
7195 
osd_enable
7196 
\family default
7197 
 is low, the On-Screen Display is not shown.
7198 
 If
7199 
\family typewriter
7200 
osd_enable
7201 
\family default
7202 
 is high, the On-Screen Display is shown.
7203 
 The osd color lookup table has to be initialized and the osd has to be
7204 
 written before
7205 
\family typewriter
7206 
osd_enable
7207 
\family default
7208 
 is raised.
7209 
 
7210 
\family typewriter
7211 
osd_enable
7212 
\family default
7213 
 is 0 on power-up or reset.
7214 
 
7215 
\end_layout
7216 
 
7217 
\begin_layout Labeling
7218 
\labelwidthstring 00.00.0000
7219 
 
7220 
\family typewriter
7221 
osd_wr_en
7222 
\family default
7223 
 is set whenever an osd write is has been accepted, whether the  osd write
7224 
 was successful or not.
7225 
 
7226 
\family typewriter
7227 
osd_wr_en
7228 
\family default
7229 
 is cleared whenever the status register is read.
7230 
\end_layout
7231 
 
7232 
\begin_layout Labeling
7233 
\labelwidthstring 00.00.0000
7234 
 
7235 
\family typewriter
7236 
osd_wr_ack
7237 
\family default
7238 
 is set whenever an osd write has been successful.
7239 
 
7240 
\family typewriter
7241 
osd_wr_ack
7242 
\family default
7243 
 is cleared whenever the status register is read.
7244 
\end_layout
7245 
 
7246 
\begin_layout Labeling
7247 
\labelwidthstring 00.00.0000
7248 
 
7249 
\family typewriter
7250 
osd_wr_full
7251 
\family default
7252 
 is set when the osd write fifo is full.
7253 
  When the osd write fifo is full, osd writes are not accepted.
7254 
\end_layout
7255 
 
7256 
\begin_layout Standard
7257 
When writing to the osd color lookup table:
7258 
\end_layout
7259 
 
7260 
\begin_layout Enumerate
7261 
Write
7262 
\family typewriter
7263 
osd_clt_yuvm.
7264 
\end_layout
7265 
 
7266 
\begin_layout Enumerate
7267 
Write
7268 
\family typewriter
7269 
osd_clt_addr.
7270 
\end_layout
7271 
 
7272 
\begin_layout Standard
7273 
Writes to the osd color lookup table take effect immediately.
7274 
\end_layout
7275 
 
7276 
\begin_layout Standard
7277 
When writing to the osd:
7278 
\end_layout
7279 
 
7280 
\begin_layout Enumerate
7281 
Only write to the osd when
7282 
\family typewriter
7283 
horizontal_size
7284 
\family default
7285 
 and
7286 
\family typewriter
7287 
vertical_size
7288 
\family default
7289 
 have meaningful values.
7290 
 This is the case when a picture header has been encountered.
7291 
\end_layout
7292 
 
7293 
\begin_layout Enumerate
7294 
Verify
7295 
\family typewriter
7296 
osd_wr_full
7297 
\family default
7298 
 is low.
7299 
 Writing when
7300 
\family typewriter
7301 
osd_wr_full
7302 
\family default
7303 
 is high has no effect.
7304 
\end_layout
7305 
 
7306 
\begin_layout Enumerate
7307 
Write the leftmost four pixels to
7308 
\family typewriter
7309 
osd_dta_high
7310 
\family default
7311 
.
7312 
\end_layout
7313 
 
7314 
\begin_layout Enumerate
7315 
Write the rightmost four pixels to
7316 
\family typewriter
7317 
osd_dta_low.
7318 
\end_layout
7319 
 
7320 
\begin_layout Enumerate
7321 
Write x and y position of the leftmost pixel to
7322 
\family typewriter
7323 
osd_addr
7324 
\family default
7325 
.
7326 
 Note x has to be a multiple of 8.
7327 
 
7328 
\family typewriter
7329 
osd_frame
7330 
\family default
7331 
 always has value 4 for OSD writes.
7332 
 
7333 
\family typewriter
7334 
osd_comp
7335 
\family default
7336 
 always has value 0 for OSD writes.
7337 
\end_layout
7338 
 
7339 
\begin_layout Enumerate
7340 
Read the status register until
7341 
\family typewriter
7342 
osd_wr_en
7343 
\family default
7344 
 is asserted.
7345 
 When
7346 
\family typewriter
7347 
osd_wr_en
7348 
\family default
7349 
 is high, the value of
7350 
\family typewriter
7351 
osd_wr_ack
7352 
\family default
7353 
 indicates whether the write was successful.
7354 
\end_layout
7355 
 
7356 
\begin_layout Standard
7357 
Writes to the osd pass through a 32-position fifo.
7358 
 This introduces some latency.
7359 
 Repeating the last osd write 32 times flushes fifo contents, ensuring osd
7360 
 memory has been updated.
7361 
\end_layout
7362 
 
7363 
\begin_layout Section
7364 
Frame Store
7365 
\end_layout
7366 
 
7367 
\begin_layout Standard
7368 
Pixels can be written directly to the frame store, using the same mechanism
7369 
 as OSD writes.
7370 
 By writing pixels to the frame store and afterwards setting the
7371 
\family typewriter
7372 
source_select
7373 
\family default
7374 
 field of the trick register (described
7375 
\begin_inset CommandInset ref
7376 
LatexCommand vpageref
7377 
reference "sec:Trick-mode"
7378 
 
7379 
\end_inset
7380 
 
7381 
) arbitrary bitmaps can be shown.
7382 
\begin_inset Separator latexpar
7383 
\end_inset
7384 
 
7385 
 
7386 
\end_layout
7387 
 
7388 
\begin_layout Standard
7389 
The only difference between an OSD write and a frame store write is the
7390 
 value of
7391 
\family typewriter
7392 
osd_frame
7393 
\family default
7394 
 and/or
7395 
\family typewriter
7396 
osd_comp
7397 
\family default
7398 
.
7399 
 Tables
7400 
\begin_inset CommandInset ref
7401 
LatexCommand ref
7402 
reference "tab:OSD-Frame"
7403 
 
7404 
\end_inset
7405 
 
7406 
 and
7407 
\begin_inset CommandInset ref
7408 
LatexCommand ref
7409 
reference "tab:OSD-Component"
7410 
 
7411 
\end_inset
7412 
 
7413 
 list the frame and component codes.
7414 
 Frames 0 and 1 are used for storing I and P frames.
7415 
 Frames 2 and 3 are used for storing B frames.
7416 
 All frames are stored in 4:2:0 format, with u and v frames having half
7417 
 the width and height of the y frame.
7418 
 Note y, u and v values are stored in memory with an offset of 128.
7419 
 
7420 
\begin_inset Float table
7421 
wide false
7422 
sideways false
7423 
status open
7424 
 
7425 
\begin_layout Plain Layout
7426 
\align center
7427 
\begin_inset Tabular
7428
7429
7430
7431
7432
7433
7434 
\begin_inset Text
7435 
 
7436 
\begin_layout Plain Layout
7437 
osd_frame
7438 
\end_layout
7439 
 
7440 
\end_inset
7441
7442
7443 
\begin_inset Text
7444 
 
7445 
\begin_layout Plain Layout
7446 
Frame
7447 
\end_layout
7448 
 
7449 
\end_inset
7450
7451
7452
7453
7454 
\begin_inset Text
7455 
 
7456 
\begin_layout Plain Layout
7457 
 
7458 
\end_layout
7459 
 
7460 
\end_inset
7461
7462
7463 
\begin_inset Text
7464 
 
7465 
\begin_layout Plain Layout
7466 
 
7467 
\end_layout
7468 
 
7469 
\end_inset
7470
7471
7472
7473
7474 
\begin_inset Text
7475 
 
7476 
\begin_layout Plain Layout
7477 
1
7478 
\end_layout
7479 
 
7480 
\end_inset
7481
7482
7483 
\begin_inset Text
7484 
 
7485 
\begin_layout Plain Layout
7486 
1
7487 
\end_layout
7488 
 
7489 
\end_inset
7490
7491
7492
7493
7494 
\begin_inset Text
7495 
 
7496 
\begin_layout Plain Layout
7497 
2
7498 
\end_layout
7499 
 
7500 
\end_inset
7501
7502
7503 
\begin_inset Text
7504 
 
7505 
\begin_layout Plain Layout
7506 
2
7507 
\end_layout
7508 
 
7509 
\end_inset
7510
7511
7512
7513
7514 
\begin_inset Text
7515 
 
7516 
\begin_layout Plain Layout
7517 
3
7518 
\end_layout
7519 
 
7520 
\end_inset
7521
7522
7523 
\begin_inset Text
7524 
 
7525 
\begin_layout Plain Layout
7526 
3
7527 
\end_layout
7528 
 
7529 
\end_inset
7530
7531
7532
7533
7534 
\begin_inset Text
7535 
 
7536 
\begin_layout Plain Layout
7537 
4
7538 
\end_layout
7539 
 
7540 
\end_inset
7541
7542
7543 
\begin_inset Text
7544 
 
7545 
\begin_layout Plain Layout
7546 
OSD
7547 
\end_layout
7548 
 
7549 
\end_inset
7550
7551
7552
7553 
 
7554 
\end_inset
7555 
 
7556 
 
7557 
\end_layout
7558 
 
7559 
\begin_layout Plain Layout
7560 
\begin_inset Caption Standard
7561 
 
7562 
\begin_layout Plain Layout
7563 
\begin_inset CommandInset label
7564 
LatexCommand label
7565 
name "tab:OSD-Frame"
7566 
 
7567 
\end_inset
7568 
 
7569 
OSD Frame
7570 
\end_layout
7571 
 
7572 
\end_inset
7573 
 
7574 
 
7575 
\begin_inset Separator latexpar
7576 
\end_inset
7577 
 
7578 
 
7579 
\end_layout
7580 
 
7581 
\end_inset
7582 
 
7583 
 
7584 
\begin_inset Float table
7585 
wide false
7586 
sideways false
7587 
status open
7588 
 
7589 
\begin_layout Plain Layout
7590 
\align center
7591 
\begin_inset Tabular
7592
7593
7594
7595
7596
7597
7598 
\begin_inset Text
7599 
 
7600 
\begin_layout Plain Layout
7601 
osd_comp
7602 
\end_layout
7603 
 
7604 
\end_inset
7605
7606
7607 
\begin_inset Text
7608 
 
7609 
\begin_layout Plain Layout
7610 
Component
7611 
\end_layout
7612 
 
7613 
\end_inset
7614
7615
7616
7617
7618 
\begin_inset Text
7619 
 
7620 
\begin_layout Plain Layout
7621 
 
7622 
\end_layout
7623 
 
7624 
\end_inset
7625
7626
7627 
\begin_inset Text
7628 
 
7629 
\begin_layout Plain Layout
7630 
y
7631 
\end_layout
7632 
 
7633 
\end_inset
7634
7635
7636
7637
7638 
\begin_inset Text
7639 
 
7640 
\begin_layout Plain Layout
7641 
1
7642 
\end_layout
7643 
 
7644 
\end_inset
7645
7646
7647 
\begin_inset Text
7648 
 
7649 
\begin_layout Plain Layout
7650 
u
7651 
\end_layout
7652 
 
7653 
\end_inset
7654
7655
7656
7657
7658 
\begin_inset Text
7659 
 
7660 
\begin_layout Plain Layout
7661 
2
7662 
\end_layout
7663 
 
7664 
\end_inset
7665
7666
7667 
\begin_inset Text
7668 
 
7669 
\begin_layout Plain Layout
7670 
v
7671 
\end_layout
7672 
 
7673 
\end_inset
7674
7675
7676
7677 
 
7678 
\end_inset
7679 
 
7680 
 
7681 
\end_layout
7682 
 
7683 
\begin_layout Plain Layout
7684 
\begin_inset Caption Standard
7685 
 
7686 
\begin_layout Plain Layout
7687 
\begin_inset CommandInset label
7688 
LatexCommand label
7689 
name "tab:OSD-Component"
7690 
 
7691 
\end_inset
7692 
 
7693 
OSD Component
7694 
\end_layout
7695 
 
7696 
\end_inset
7697 
 
7698 
 
7699 
\end_layout
7700 
 
7701 
\end_inset
7702 
 
7703 
 
7704 
\end_layout
7705 
 
7706 
\begin_layout Standard
7707 
Writes to the frame store are only defined when
7708 
\family typewriter
7709 
horizontal_size
7710 
\family default
7711 
 and
7712 
\family typewriter
7713 
vertical_size
7714 
\family default
7715 
 have meaningful values.
7716 
 Writes with
7717 
\family typewriter
7718 
osd_frame
7719 
\family default
7720 
 4 are only defined when
7721 
\family typewriter
7722 
osd_comp
7723 
\family default
7724 
 is 0.
7725 
\end_layout
7726 
 
7727 
\begin_layout Section
7728 
\begin_inset CommandInset label
7729 
LatexCommand label
7730 
name "sec:Video-Modeline"
7731 
 
7732 
\end_inset
7733 
 
7734 
Video Modeline
7735 
\end_layout
7736 
 
7737 
\begin_layout Standard
7738 
The video timing parameters are:
7739 
\end_layout
7740 
 
7741 
\begin_layout Itemize
7742 
 
7743 
\family typewriter
7744 
horizontal_resolution
7745 
\end_layout
7746 
 
7747 
\begin_layout Itemize
7748 
 
7749 
\family typewriter
7750 
horizontal_sync_start
7751 
\end_layout
7752 
 
7753 
\begin_layout Itemize
7754 
 
7755 
\family typewriter
7756 
horizontal_sync_end
7757 
\end_layout
7758 
 
7759 
\begin_layout Itemize
7760 
 
7761 
\family typewriter
7762 
horizontal_length
7763 
\end_layout
7764 
 
7765 
\begin_layout Itemize
7766 
 
7767 
\family typewriter
7768 
vertical_resolution
7769 
\end_layout
7770 
 
7771 
\begin_layout Itemize
7772 
 
7773 
\family typewriter
7774 
vertical_sync_start
7775 
\end_layout
7776 
 
7777 
\begin_layout Itemize
7778 
 
7779 
\family typewriter
7780 
vertical_sync_end
7781 
\end_layout
7782 
 
7783 
\begin_layout Itemize
7784 
 
7785 
\family typewriter
7786 
vertical_length
7787 
\end_layout
7788 
 
7789 
\begin_layout Itemize
7790 
 
7791 
\family typewriter
7792 
horizontal_halfline
7793 
\end_layout
7794 
 
7795 
\begin_layout Itemize
7796 
 
7797 
\family typewriter
7798 
interlaced
7799 
\end_layout
7800 
 
7801 
\begin_layout Itemize
7802 
 
7803 
\family typewriter
7804 
pixel_repetition
7805 
\end_layout
7806 
 
7807 
\begin_layout Standard
7808 
These parameters can be deduced from the X11 modeline for the display, which
7809 
 is described in the
7810 
\begin_inset Quotes eld
7811 
\end_inset
7812 
 
7813 
XFree86 Video Timings HOWTO
7814 
\begin_inset Quotes erd
7815 
\end_inset
7816 
 
7817 
.
7818 
 Writing to the internal registers which contain the video timing parameters
7819 
 will restart the video synchronization generator.
7820 
\end_layout
7821 
 
7822 
\begin_layout Standard
7823 
Two video timing diagrams are shown, one for progressive video (Figure
7824 
\begin_inset CommandInset ref
7825 
LatexCommand ref
7826 
reference "fig:Progressive-Video"
7827 
 
7828 
\end_inset
7829 
 
7830 
) and one for interlaced video (Figure
7831 
\begin_inset CommandInset ref
7832 
LatexCommand ref
7833 
reference "fig:Interlaced-Video"
7834 
 
7835 
\end_inset
7836 
 
7837 
).
7838 
 The diagrams show the picture area (a light grey rectangle), flanked by
7839 
 horizontal sync (a dark grey vertical bar) and vertical sync (a dark grey
7840 
 horizontal bar).
7841 
\begin_inset Float figure
7842 
wide false
7843 
sideways false
7844 
status open
7845 
 
7846 
\begin_layout Plain Layout
7847 
\begin_inset ERT
7848 
status open
7849 
 
7850 
\begin_layout Plain Layout
7851 
 
7852 
 
7853 
\backslash
7854 
centering
7855 
\end_layout
7856 
 
7857 
\end_inset
7858 
 
7859 
 
7860 
\begin_inset Graphics
7861 
        filename progressive.eps
7862 
        width 100line%
7863 
        keepAspectRatio
7864 
 
7865 
\end_inset
7866 
 
7867 
 
7868 
\end_layout
7869 
 
7870 
\begin_layout Plain Layout
7871 
\begin_inset Caption Standard
7872 
 
7873 
\begin_layout Plain Layout
7874 
\begin_inset CommandInset label
7875 
LatexCommand label
7876 
name "fig:Progressive-Video"
7877 
 
7878 
\end_inset
7879 
 
7880 
Progressive Video
7881 
\end_layout
7882 
 
7883 
\end_inset
7884 
 
7885 
 
7886 
\begin_inset Separator latexpar
7887 
\end_inset
7888 
 
7889 
 
7890 
\end_layout
7891 
 
7892 
\end_inset
7893 
 
7894 
 
7895 
\begin_inset Float figure
7896 
wide false
7897 
sideways false
7898 
status open
7899 
 
7900 
\begin_layout Plain Layout
7901 
\noindent
7902 
\align center
7903 
\begin_inset ERT
7904 
status open
7905 
 
7906 
\begin_layout Plain Layout
7907 
 
7908 
 
7909 
\backslash
7910 
centering
7911 
\end_layout
7912 
 
7913 
\end_inset
7914 
 
7915 
 
7916 
\begin_inset Graphics
7917 
        filename interlaced.eps
7918 
        width 100line%
7919 
        keepAspectRatio
7920 
        BoundingBox 0bp 0bp 495bp 484bp
7921 
        clip
7922 
 
7923 
\end_inset
7924 
 
7925 
 
7926 
\end_layout
7927 
 
7928 
\begin_layout Plain Layout
7929 
\begin_inset Caption Standard
7930 
 
7931 
\begin_layout Plain Layout
7932 
\begin_inset CommandInset label
7933 
LatexCommand label
7934 
name "fig:Interlaced-Video"
7935 
 
7936 
\end_inset
7937 
 
7938 
Interlaced Video
7939 
\end_layout
7940 
 
7941 
\end_inset
7942 
 
7943 
 
7944 
\end_layout
7945 
 
7946 
\end_inset
7947 
 
7948 
 
7949 
\end_layout
7950 
 
7951 
\begin_layout Labeling
7952 
\labelwidthstring 00.00.0000
7953 
 
7954 
\family typewriter
7955 
horizontal_resolution
7956 
\family default
7957 
 number of dots per scan line.
7958 
 
7959 
\end_layout
7960 
 
7961 
\begin_layout Labeling
7962 
\labelwidthstring 00.00.0000
7963 
 
7964 
\family typewriter
7965 
horizontal_sync_start
7966 
\family default
7967 
 used to specify the horizontal position the horizontal  sync pulse begins.
7968 
 The leftmost pixel of a line has position zero.
7969 
\end_layout
7970 
 
7971 
\begin_layout Labeling
7972 
\labelwidthstring 00.00.0000
7973 
 
7974 
\family typewriter
7975 
horizontal_sync_end
7976 
\family default
7977 
 used to specify the horizontal position the horizontal  sync pulse ends.
7978 
 
7979 
\end_layout
7980 
 
7981 
\begin_layout Labeling
7982 
\labelwidthstring 00.00.0000
7983 
 
7984 
\family typewriter
7985 
horizontal_length
7986 
\family default
7987 
 total length, in pixels, of one scan line.
7988 
 
7989 
\end_layout
7990 
 
7991 
\begin_layout Labeling
7992 
\labelwidthstring 00.00.0000
7993 
 
7994 
\family typewriter
7995 
vertical_resolution
7996 
\family default
7997 
 number of visible lines per frame (progressive) or field  (interlaced).
7998 
\end_layout
7999 
 
8000 
\begin_layout Labeling
8001 
\labelwidthstring 00.00.0000
8002 
 
8003 
\family typewriter
8004 
vertical_sync_start
8005 
\family default
8006 
 used to specify the line number within the frame (progressive) or field
8007 
 (interlaced) the vertical sync pulse begins.
8008 
 The topmost line of a frame or field is line number zero.
8009 
\end_layout
8010 
 
8011 
\begin_layout Labeling
8012 
\labelwidthstring 00.00.0000
8013 
 
8014 
\family typewriter
8015 
vertical_sync_end
8016 
\family default
8017 
 used to specify the line number within the frame (progressive)  or field
8018 
 (interlaced) the vertical sync pulse ends.
8019 
 
8020 
\end_layout
8021 
 
8022 
\begin_layout Labeling
8023 
\labelwidthstring 00.00.0000
8024 
 
8025 
\family typewriter
8026 
horizontal_halfline
8027 
\family default
8028 
 used to specify the horizontal position the vertical  sync begins on odd
8029 
 fields of interlaced video.
8030 
 Not used in progressive mode.
8031 
 
8032 
\end_layout
8033 
 
8034 
\begin_layout Labeling
8035 
\labelwidthstring 00.00.0000
8036 
 
8037 
\family typewriter
8038 
vertical_length
8039 
\family default
8040 
 total number of lines of a vertical frame (progressive)  or field (interlaced).
8041 
\end_layout
8042 
 
8043 
\begin_layout Labeling
8044 
\labelwidthstring 00.00.0000
8045 
 
8046 
\family typewriter
8047 
clip_display_size
8048 
\family default
8049 
 If asserted, the image is clipped to (
8050 
\family typewriter
8051 
display_horizontal_size
8052 
\family default
8053 
,
8054 
\family typewriter
8055 
display_vertical_size
8056 
\family default
8057 
).
8058 
 If not asserted, the image is clipped to (
8059 
\family typewriter
8060 
horizontal_size
8061 
\family default
8062 
,
8063 
\family typewriter
8064 
vertical_size
8065 
\family default
8066 
).
8067 
\end_layout
8068 
 
8069 
\begin_layout Labeling
8070 
\labelwidthstring 00.00.0000
8071 
 
8072 
\family typewriter
8073 
interlaced
8074 
\family default
8075 
 used to specify interlaced output is required.
8076 
  If
8077 
\family typewriter
8078 
interlaced
8079 
\family default
8080 
 is asserted, vertical sync is delayed one-half scan line at the end of
8081 
 odd fields.
8082 
\end_layout
8083 
 
8084 
\begin_layout Labeling
8085 
\labelwidthstring 00.00.0000
8086 
 
8087 
\family typewriter
8088 
pixel_repetition
8089 
\family default
8090 
 If
8091 
\family typewriter
8092 
pixel_repetition
8093 
\family default
8094 
 is asserted, each pixel is output twice.
8095 
 This can be used if the original dot clock is too low for the transmitter.
8096 
 As an example, suppose valid dot clock rates are 25\SpecialChar ldots
8097 
165 MHz, but the SDTV
8098 
 video being decoded has a dot clock of only 13.5 MHz.
8099 
 Asserting
8100 
\family typewriter
8101 
pixel_repetition
8102 
\family default
8103 
 and doubling dot clock frequency results in a dot clock of 27 MHz, sufficient
8104 
 for SDTV video to be transmitted across the link.
8105 
\end_layout
8106 
 
8107 
\begin_layout Section
8108 
Interrupts
8109 
\end_layout
8110 
 
8111 
\begin_layout Standard
8112 
\begin_inset CommandInset label
8113 
LatexCommand label
8114 
name "sec:Interrupts"
8115 
 
8116 
\end_inset
8117 
 
8118 
Three independent conditions may trigger an interrupt: when a picture header
8119 
 is encountered in the bitstream, when frame display ends, and when video
8120 
 resolution or frame rate changes.
8121 
 All three interrupt sources are optional and can be disabled individually.
8122 
\end_layout
8123 
 
8124 
\begin_layout Standard
8125 
When
8126 
\family typewriter
8127 
picture_hdr_intr_en
8128 
\family default
8129 
 is high and a picture header is encountered in the bitstream,
8130 
\family typewriter
8131 
picture_hdr
8132 
\family default
8133 
 is set and the interrupt signal is asserted until the status register is
8134 
 read.
8135 
 If
8136 
\family typewriter
8137 
picture_hdr_intr_en
8138 
\family default
8139 
 is low, the interrupt signal is never raised.
8140 
 
8141 
\family typewriter
8142 
picture_hdr and picture_hdr_intr_en
8143 
\family default
8144 
 are 0 on power-up or reset.
8145 
 The picture header interrupt marks the
8146 
\begin_inset Quotes eld
8147 
\end_inset
8148 
 
8149 
heartbeat
8150 
\begin_inset Quotes erd
8151 
\end_inset
8152 
 
8153 
 of the video decoding engine.
8154 
\end_layout
8155 
 
8156 
\begin_layout Standard
8157 
When video vertical synchronization begins and
8158 
\family typewriter
8159 
frame_end_intr_en
8160 
\family default
8161 
 is high,
8162 
\family typewriter
8163 
frame_end
8164 
\family default
8165 
 is set and the interrupt signal is asserted until the status register is
8166 
 read.
8167 
 If
8168 
\family typewriter
8169 
frame_end_intr_en
8170 
\family default
8171 
 is low, the interrupt signal is never raised.
8172 
 
8173 
\family typewriter
8174 
frame_end and frame_end_intr_en
8175 
\family default
8176 
 are 0 on power-up or reset.
8177 
 The frame end interrupt marks the
8178 
\begin_inset Quotes eld
8179 
\end_inset
8180 
 
8181 
heartbeat
8182 
\begin_inset Quotes erd
8183 
\end_inset
8184 
 
8185 
 of the video display engine.
8186 
 
8187 
\end_layout
8188 
 
8189 
\begin_layout Standard
8190 
When one of
8191 
\family typewriter
8192 
horizontal_size, vertical_size, display_horizontal_size, display_vertical_size,
8193 
 progressive_sequence, aspect_ratio_information, frame_rate_code, frame_rate_ext
8194 
ension_n,
8195 
\family default
8196 
 or
8197 
\family typewriter
8198 
frame_rate_extension_d
8199 
\family default
8200 
 changes, and
8201 
\family typewriter
8202 
video_ch_intr_en
8203 
\family default
8204 
 is high,
8205 
\family typewriter
8206 
video_ch
8207 
\family default
8208 
 is set and the interrupt signal is asserted until the status register is
8209 
 read.
8210 
 If
8211 
\family typewriter
8212 
video_ch_intr_en
8213 
\family default
8214 
 is low, the interrupt signal is never raised.
8215 
 
8216 
\family typewriter
8217 
video_ch
8218 
\family default
8219 
 and
8220 
\family typewriter
8221 
video_ch_intr_en
8222 
\family default
8223 
 are 0 on power-up or reset.
8224 
 The video change interrupt marks an abrupt change in the MPEG2 bitstream.
8225 
\end_layout
8226 
 
8227 
\begin_layout Standard
8228 
It is suggested that software, when receiving a video change interrupt:
8229 
\end_layout
8230 
 
8231 
\begin_layout Enumerate
8232 
Reads the size, display size and frame rate registers.
8233 
\end_layout
8234 
 
8235 
\begin_layout Enumerate
8236 
If
8237 
\family typewriter
8238 
frame_rate_code
8239 
\family default
8240 
,
8241 
\family typewriter
8242 
frame_rate_extension_d
8243 
\family default
8244 
 or
8245 
\family typewriter
8246 
frame_rate_extension_n
8247 
\family default
8248 
 have changed, change dot clock frequency.
8249 
\end_layout
8250 
 
8251 
\begin_layout Enumerate
8252 
Calculates a video modeline, either using a look-up table or algebraically,
8253 
 e.g.
8254 
 using the VESA General Timing Formula.
8255 
\end_layout
8256 
 
8257 
\begin_layout Enumerate
8258 
Writes the new video modeline parameters to the horizontal, horizontal sync,
8259 
 vertical, vertical sync and video mode registers.
8260 
 This restarts the video synchronization.
8261 
\end_layout
8262 
 
8263 
\begin_layout Enumerate
8264 
If
8265 
\family typewriter
8266 
horizontal_size
8267 
\family default
8268 
 or
8269 
\family typewriter
8270 
vertical_size
8271 
\family default
8272 
 have changed and
8273 
\family typewriter
8274 
osd_enable
8275 
\family default
8276 
 is high, rewrite the On-Screen Display.
8277 
\end_layout
8278 
 
8279 
\begin_layout Section
8280 
Watchdog
8281 
\end_layout
8282 
 
8283 
\begin_layout Standard
8284 
The MPEG2 decoder contains a watchdog circuit.
8285 
 The watchdog circuit resets the decoder if the decoder is unresponsive.
8286 
 The decoder is considered unresponsive if the decoder does not accept MPEG2
8287 
 data for a period of time longer than the watchdog timeout interval.
8288 
 We outline how to configure the watchdog timeout interval, define under
8289 
 which conditions the watchdog circuit activates, and describe what happens
8290 
 when the watchdog timer expires.
8291 
\end_layout
8292 
 
8293 
\begin_layout Standard
8294 
The watchdog timeout interval can be configured by writing
8295 
\family typewriter
8296 
watchdog_interval
8297 
\family default
8298 
, register 0, bits 15-8.
8299 
 
8300 
\end_layout
8301 
 
8302 
\begin_layout Itemize
8303 
writing 0 to
8304 
\family typewriter
8305 
watchdog_interval
8306 
\family default
8307 
 causes the watchdog timer to expire immediately.
8308 
 
8309 
\end_layout
8310 
 
8311 
\begin_layout Itemize
8312 
writing a value from 1 to 254, inclusive, to
8313 
\family typewriter
8314 
watchdog_interval
8315 
\family default
8316 
 enables the watchdog circuit.
8317 
\end_layout
8318 
 
8319 
\begin_layout Itemize
8320 
writing 255 decimal to
8321 
\family typewriter
8322 
watchdog_interval
8323 
\family default
8324 
 disables the watchdog circuit.
8325 
 
8326 
\end_layout
8327 
 
8328 
\begin_layout Standard
8329 
The default value of
8330 
\family typewriter
8331 
watchdog_interval
8332 
\family default
8333 
 is 127.
8334 
 If
8335 
\family typewriter
8336 
watchdog_interval
8337 
\family default
8338 
 has a value from 1 to 254, inclusive, the watchdog timeout is
8339 
\begin_inset Formula
8340 
\[
8341 
watchdog\_timeout=(watchdog\_interval+1).(repeat\_frame+1).2^{18}
8342 
\]
8343 
 
8344 
\end_inset
8345 
 
8346 
 
8347 
\family typewriter
8348 
clk
8349 
\family default
8350 
 clock cycles.
8351 
 
8352 
\family typewriter
8353 
repeat_frame
8354 
\family default
8355 
 (Section
8356 
\begin_inset CommandInset ref
8357 
LatexCommand ref
8358 
reference "sec:Trick-mode"
8359 
 
8360 
\end_inset
8361 
 
8362 
) determines the numer of times a decoded video frame is displayed.
8363 
 Each decoded video image is shown
8364 
\family typewriter
8365 
repeat_frame
8366 
\family default
8367 
 
8368 
\begin_inset space ~
8369 
\end_inset
8370 
 
8371 
+
8372 
\begin_inset space ~
8373 
\end_inset
8374 
 
8375 
1 times.
8376 
 If a video frame is shown n times, the watchdog timeout is multiplied by
8377 
 n as well.
8378 
 This implies there is no need to adjust the watchdog timer if video is
8379 
 reproduced in slow motion.
8380 
 
8381 
\end_layout
8382 
 
8383 
\begin_layout Standard
8384 
The default value of
8385 
\family typewriter
8386 
repeat_frame
8387 
\family default
8388 
 is 0.
8389 
 If decoder
8390 
\family typewriter
8391 
clk
8392 
\family default
8393 
 frequency is 75 MHz the default watchdog timeout interval is 0.45 seconds.
8394 
\end_layout
8395 
 
8396 
\begin_layout Standard
8397 
The watchdog timer starts running when the decoder raises the
8398 
\family typewriter
8399 
busy
8400 
\family default
8401 
 signal.
8402 
 If the
8403 
\family typewriter
8404 
busy
8405 
\family default
8406 
 signal remains high for longer than the watchdog timeout interval, a reset
8407 
 is generated.
8408 
 
8409 
\end_layout
8410 
 
8411 
\begin_layout Standard
8412 
The watchdog timer is reset
8413 
\end_layout
8414 
 
8415 
\begin_layout Itemize
8416 
when the global
8417 
\family typewriter
8418 
rst
8419 
\family default
8420 
 input signal is driven low
8421 
\end_layout
8422 
 
8423 
\begin_layout Itemize
8424 
when the decoder
8425 
\family typewriter
8426 
busy
8427 
\family default
8428 
 signal is low
8429 
\end_layout
8430 
 
8431 
\begin_layout Itemize
8432 
when the decoder has been halted to show the current frame (
8433 
\family typewriter
8434 
repeat_frame
8435 
\family default
8436 
 is 31,
8437 
\shape italic
8438 
freeze-frame
8439 
\shape default
8440 
)
8441 
\end_layout
8442 
 
8443 
\begin_layout Itemize
8444 
when the decoder has been halted to show a particular framestore frame (
8445 
\family typewriter
8446 
source_select
8447 
\family default
8448 
 is non-zero)
8449 
\end_layout
8450 
 
8451 
\begin_layout Itemize
8452 
when the watchdog circuit has been disabled (
8453 
\family typewriter
8454 
watchdog_interval
8455 
\family default
8456 
 has been set to 0 or to 255)
8457 
\end_layout
8458 
 
8459 
\begin_layout Itemize
8460 
during the first
8461 
\begin_inset Formula $2^{26}$
8462 
\end_inset
8463 
 
8464 
 
8465 
\family typewriter
8466 
clk
8467 
\family default
8468 
 clock cycles after the watchdog timer expired, or the decoder was reset.
8469 
 This watchdog timer
8470 
\shape italic
8471 
holdoff
8472 
\shape default
8473 
 disables the watchdog during system initialisation.
8474 
 If clock frequency is 75 MHz,
8475 
\begin_inset Formula $2^{26}$
8476 
\end_inset
8477 
 
8478 
 clock cycles corresponds to 0.89 seconds.
8479 
\end_layout
8480 
 
8481 
\begin_layout Standard
8482 
When the watchdog timer expires
8483 
\end_layout
8484 
 
8485 
\begin_layout Itemize
8486 
the
8487 
\family typewriter
8488 
watchdog_rst
8489 
\family default
8490 
 output pin becomes low during one
8491 
\family typewriter
8492 
clk
8493 
\family default
8494 
 clock cycle.
8495 
 The
8496 
\family typewriter
8497 
watchdog_rst
8498 
\family default
8499 
 output can be used to reset external hardware, or to generate a processor
8500 
 interrupt.
8501 
\end_layout
8502 
 
8503 
\begin_layout Itemize
8504 
the
8505 
\family typewriter
8506 
watchdog_status
8507 
\family default
8508 
 bit in the status register is set to 1.
8509 
 Software can detect whether the watchdog timer expired by checking
8510 
\family typewriter
8511 
watchdog_status
8512 
\family default
8513 
 in the status register.
8514 
 Reading the status register resets the
8515 
\family typewriter
8516 
watchdog_status
8517 
\family default
8518 
 bit back to 0.
8519 
\end_layout
8520 
 
8521 
\begin_layout Itemize
8522 
The framestore, On-Screen Display and circular video buffer are filled with
8523 
 zeroes.
8524 
\end_layout
8525 
 
8526 
\begin_layout Itemize
8527 
any data in the memory response fifo is discarded.
8528 
 
8529 
\end_layout
8530 
 
8531 
\begin_layout Itemize
8532 
 
8533 
\family typewriter
8534 
osd_enable
8535 
\family default
8536 
 is set to 0.
8537 
 This disables the On-Screen Display, as the On-Screen Display now contains
8538 
 all zeroes.
8539 
\end_layout
8540 
 
8541 
\begin_layout Itemize
8542 
configuration data written to the register file is
8543 
\series bold
8544 
not
8545 
\series default
8546 
 modified when the watchdog expires.
8547 
 In particular, the video timing parameters (Sec.
8548 
 
8549 
\begin_inset CommandInset ref
8550 
LatexCommand ref
8551 
reference "sec:Video-Modeline"
8552 
 
8553 
\end_inset
8554 
 
8555 
) remain unchanged.
8556 
\end_layout
8557 
 
8558 
\begin_layout Standard
8559 
The
8560 
\family typewriter
8561 
watchdog_rst
8562 
\family default
8563 
 output pin can optionally be used to reset external hardware when the watchdog
8564 
 expires.
8565 
 Examples of external hardware are the memory controller and the DVI dot
8566 
 clock generator.
8567 
 Note, however, resetting memory controller and DVI dot clock generator
8568 
 when the watchdog timer expires is optional.
8569 
 
8570 
\end_layout
8571 
 
8572 
\begin_layout Standard
8573 
The MPEG2 decoder does not require the external memory controller to be
8574 
 reset when the watchdog timer expires.
8575 
 When the watchdog timer expires, the MPEG2 decoder will write zeroes to
8576 
 all addresses from FRAME_0_Y to VBUF_END (
8577 
\family typewriter
8578 
framestore_request.v
8579 
\family default
8580 
, STATE_CLEAR).
8581 
 When the watchdog timer expires, the MPEG2 decoder will also read and discard
8582 
 any data from the memory response fifo (
8583 
\family typewriter
8584 
framestore_response.v
8585 
\family default
8586 
, STATE_FLUSH).
8587 
 These two actions re-synchronize MPEG2 decoder and external memory controller
8588 
 and bring memory to a known state.
8589 
\end_layout
8590 
 
8591 
\begin_layout Standard
8592 
The MPEG2 decoder also does not require the DVI clock generator to be reset
8593 
 when the watchdog expires.
8594 
 When the watchdog timer expires, the video timing parameters (Sec.
8595 
 
8596 
\begin_inset CommandInset ref
8597 
LatexCommand ref
8598 
reference "sec:Video-Modeline"
8599 
 
8600 
\end_inset
8601 
 
8602 
) remain unchanged.
8603 
 If the DVI clock frequency remains unchanged when the watchdog timer expires,
8604 
 the decoder will continue with exactly the same video timing.
8605 
\end_layout
8606 
 
8607 
\begin_layout Section
8608 
Trick mode
8609 
\end_layout
8610 
 
8611 
\begin_layout Standard
8612 
\begin_inset CommandInset label
8613 
LatexCommand label
8614 
name "sec:Trick-mode"
8615 
 
8616 
\end_inset
8617 
 
8618 
The trick mode register provides a toolbox for implementing non-standard
8619 
 playback modes.
8620 
 An example of a non-standard playback mode is slow motion.
8621 
 It is perhaps easiest to visualize trick mode settings as a pipeline (Figure
8622 
 
8623 
\begin_inset CommandInset ref
8624 
LatexCommand ref
8625 
reference "fig:Trick-mode-pipeline"
8626 
 
8627 
\end_inset
8628 
 
8629 
).
8630 
\begin_inset Float figure
8631 
wide false
8632 
sideways false
8633 
status open
8634 
 
8635 
\begin_layout Plain Layout
8636 
\align center
8637 
\begin_inset ERT
8638 
status open
8639 
 
8640 
\begin_layout Plain Layout
8641 
 
8642 
 
8643 
\backslash
8644 
centering
8645 
\end_layout
8646 
 
8647 
\end_inset
8648 
 
8649 
 
8650 
\begin_inset Graphics
8651 
        filename trick_mode.eps
8652 
        lyxscale 50
8653 
        scale 60
8654 
        clip
8655 
 
8656 
\end_inset
8657 
 
8658 
 
8659 
\end_layout
8660 
 
8661 
\begin_layout Plain Layout
8662 
\begin_inset Caption Standard
8663 
 
8664 
\begin_layout Plain Layout
8665 
\begin_inset CommandInset label
8666 
LatexCommand label
8667 
name "fig:Trick-mode-pipeline"
8668 
 
8669 
\end_inset
8670 
 
8671 
Trick mode pipeline
8672 
\end_layout
8673 
 
8674 
\end_inset
8675 
 
8676 
 
8677 
\end_layout
8678 
 
8679 
\end_inset
8680 
 
8681 
 
8682 
\end_layout
8683 
 
8684 
\begin_layout Labeling
8685 
\labelwidthstring 00.00.0000
8686 
 
8687 
\family typewriter
8688 
flush_vbuf
8689 
\family default
8690 
 Writing one to
8691 
\family typewriter
8692 
flush_vbuf
8693 
\family default
8694 
 clears the incoming video buffer.
8695 
 Flushing the video buffer may be useful when changing channels.
8696 
\end_layout
8697 
 
8698 
\begin_layout Labeling
8699 
\labelwidthstring 00.00.0000
8700 
 
8701 
\family typewriter
8702 
persistence
8703 
\family default
8704 
 If
8705 
\family typewriter
8706 
persistence
8707 
\family default
8708 
 is set, and no new decoded image is available at frame start the last decoded
8709 
 image is shown again.
8710 
 If
8711 
\family typewriter
8712 
persistence
8713 
\family default
8714 
 is not set, and no new decoded image is available at frame start a blank
8715 
 screen is shown.
8716 
 
8717 
\family typewriter
8718 
persistence
8719 
\family default
8720 
 is 1 on power-up or reset.
8721 
\end_layout
8722 
 
8723 
\begin_layout Labeling
8724 
\labelwidthstring 00.00.0000
8725 
 
8726 
\family typewriter
8727 
source_select
8728 
\family default
8729 
 If zero, normal video is shown.
8730 
  Non-zero values allow continuous output of a blank screen, or a specific
8731 
 frame from the frame store, as in table
8732 
\begin_inset CommandInset ref
8733 
LatexCommand ref
8734 
reference "tab:Source-Select"
8735 
 
8736 
\end_inset
8737 
 
8738 
.
8739 
 
8740 
\family typewriter
8741 
source_select
8742 
\family default
8743 
 is 0 on power-up or reset.
8744 
 
8745 
\begin_inset Float table
8746 
wide false
8747 
sideways false
8748 
status open
8749 
 
8750 
\begin_layout Plain Layout
8751 
\align center
8752 
\begin_inset Tabular
8753
8754
8755
8756
8757
8758
8759 
\begin_inset Text
8760 
 
8761 
\begin_layout Plain Layout
8762 
source_select
8763 
\end_layout
8764 
 
8765 
\end_inset
8766
8767
8768 
\begin_inset Text
8769 
 
8770 
\begin_layout Plain Layout
8771 
Frame shown
8772 
\end_layout
8773 
 
8774 
\end_inset
8775
8776
8777
8778
8779 
\begin_inset Text
8780 
 
8781 
\begin_layout Plain Layout
8782 
 
8783 
\end_layout
8784 
 
8785 
\end_inset
8786
8787
8788 
\begin_inset Text
8789 
 
8790 
\begin_layout Plain Layout
8791 
last decoded frame
8792 
\end_layout
8793 
 
8794 
\end_inset
8795
8796
8797
8798
8799 
\begin_inset Text
8800 
 
8801 
\begin_layout Plain Layout
8802 
1
8803 
\end_layout
8804 
 
8805 
\end_inset
8806
8807
8808 
\begin_inset Text
8809 
 
8810 
\begin_layout Plain Layout
8811 
blank screen
8812 
\end_layout
8813 
 
8814 
\end_inset
8815
8816
8817
8818
8819 
\begin_inset Text
8820 
 
8821 
\begin_layout Plain Layout
8822 
4
8823 
\end_layout
8824 
 
8825 
\end_inset
8826
8827
8828 
\begin_inset Text
8829 
 
8830 
\begin_layout Plain Layout
8831 
frame 0
8832 
\end_layout
8833 
 
8834 
\end_inset
8835
8836
8837
8838
8839 
\begin_inset Text
8840 
 
8841 
\begin_layout Plain Layout
8842 
5
8843 
\end_layout
8844 
 
8845 
\end_inset
8846
8847
8848 
\begin_inset Text
8849 
 
8850 
\begin_layout Plain Layout
8851 
frame 1
8852 
\end_layout
8853 
 
8854 
\end_inset
8855
8856
8857
8858
8859 
\begin_inset Text
8860 
 
8861 
\begin_layout Plain Layout
8862 
6
8863 
\end_layout
8864 
 
8865 
\end_inset
8866
8867
8868 
\begin_inset Text
8869 
 
8870 
\begin_layout Plain Layout
8871 
frame 2
8872 
\end_layout
8873 
 
8874 
\end_inset
8875
8876
8877
8878
8879 
\begin_inset Text
8880 
 
8881 
\begin_layout Plain Layout
8882 
7
8883 
\end_layout
8884 
 
8885 
\end_inset
8886
8887
8888 
\begin_inset Text
8889 
 
8890 
\begin_layout Plain Layout
8891 
frame 3
8892 
\end_layout
8893 
 
8894 
\end_inset
8895
8896
8897
8898 
 
8899 
\end_inset
8900 
 
8901 
 
8902 
\end_layout
8903 
 
8904 
\begin_layout Plain Layout
8905 
\begin_inset Caption Standard
8906 
 
8907 
\begin_layout Plain Layout
8908 
\begin_inset CommandInset label
8909 
LatexCommand label
8910 
name "tab:Source-Select"
8911 
 
8912 
\end_inset
8913 
 
8914 
Source Select
8915 
\end_layout
8916 
 
8917 
\end_inset
8918 
 
8919 
 
8920 
\end_layout
8921 
 
8922 
\end_inset
8923 
 
8924 
 
8925 
\end_layout
8926 
 
8927 
\begin_layout Labeling
8928 
\labelwidthstring 00.00.0000
8929 
 
8930 
\family typewriter
8931 
repeat_frame
8932 
\family default
8933 
 If zero, each decoded image is shown once.
8934 
  If non-zero, contains the number of times the decoded image will be additional
8935 
ly shown, as in table
8936 
\begin_inset CommandInset ref
8937 
LatexCommand ref
8938 
reference "tab:Repeat-Frame"
8939 
 
8940 
\end_inset
8941 
 
8942 
.
8943 
 A value of 31 shows the image indefinitely.
8944 
 
8945 
\family typewriter
8946 
repeat_frame
8947 
\family default
8948 
 is 0 on power-up or reset.
8949 
 
8950 
\begin_inset Float table
8951 
wide false
8952 
sideways false
8953 
status open
8954 
 
8955 
\begin_layout Plain Layout
8956 
\align center
8957 
\begin_inset Tabular
8958
8959
8960
8961
8962
8963
8964 
\begin_inset Text
8965 
 
8966 
\begin_layout Plain Layout
8967 
repeat_frame
8968 
\end_layout
8969 
 
8970 
\end_inset
8971
8972
8973 
\begin_inset Text
8974 
 
8975 
\begin_layout Plain Layout
8976 
times shown
8977 
\end_layout
8978 
 
8979 
\end_inset
8980
8981
8982
8983
8984 
\begin_inset Text
8985 
 
8986 
\begin_layout Plain Layout
8987 
 
8988 
\end_layout
8989 
 
8990 
\end_inset
8991
8992
8993 
\begin_inset Text
8994 
 
8995 
\begin_layout Plain Layout
8996 
1
8997 
\end_layout
8998 
 
8999 
\end_inset
9000
9001
9002
9003
9004 
\begin_inset Text
9005 
 
9006 
\begin_layout Plain Layout
9007 
1
9008 
\end_layout
9009 
 
9010 
\end_inset
9011
9012
9013 
\begin_inset Text
9014 
 
9015 
\begin_layout Plain Layout
9016 
2
9017 
\end_layout
9018 
 
9019 
\end_inset
9020
9021
9022
9023
9024 
\begin_inset Text
9025 
 
9026 
\begin_layout Plain Layout
9027 
2
9028 
\end_layout
9029 
 
9030 
\end_inset
9031
9032
9033 
\begin_inset Text
9034 
 
9035 
\begin_layout Plain Layout
9036 
3
9037 
\end_layout
9038 
 
9039 
\end_inset
9040
9041
9042
9043
9044 
\begin_inset Text
9045 
 
9046 
\begin_layout Plain Layout
9047 
\SpecialChar ldots
9048 
 
9049 
\end_layout
9050 
 
9051 
\end_inset
9052
9053
9054 
\begin_inset Text
9055 
 
9056 
\begin_layout Plain Layout
9057 
 
9058 
\end_layout
9059 
 
9060 
\end_inset
9061
9062
9063
9064
9065 
\begin_inset Text
9066 
 
9067 
\begin_layout Plain Layout
9068 
30
9069 
\end_layout
9070 
 
9071 
\end_inset
9072
9073
9074 
\begin_inset Text
9075 
 
9076 
\begin_layout Plain Layout
9077 
31
9078 
\end_layout
9079 
 
9080 
\end_inset
9081
9082
9083
9084
9085 
\begin_inset Text
9086 
 
9087 
\begin_layout Plain Layout
9088 
31
9089 
\end_layout
9090 
 
9091 
\end_inset
9092
9093
9094 
\begin_inset Text
9095 
 
9096 
\begin_layout Plain Layout
9097 
forever
9098 
\end_layout
9099 
 
9100 
\end_inset
9101
9102
9103
9104 
 
9105 
\end_inset
9106 
 
9107 
 
9108 
\end_layout
9109 
 
9110 
\begin_layout Plain Layout
9111 
\begin_inset Caption Standard
9112 
 
9113 
\begin_layout Plain Layout
9114 
\begin_inset CommandInset label
9115 
LatexCommand label
9116 
name "tab:Repeat-Frame"
9117 
 
9118 
\end_inset
9119 
 
9120 
Repeat Frame
9121 
\end_layout
9122 
 
9123 
\end_inset
9124 
 
9125 
 
9126 
\end_layout
9127 
 
9128 
\end_inset
9129 
 
9130 
 
9131 
\end_layout
9132 
 
9133 
\begin_layout Labeling
9134 
\labelwidthstring 00.00.0000
9135 
 
9136 
\family typewriter
9137 
deinterlace
9138 
\family default
9139 
 Setting
9140 
\family typewriter
9141 
deinterlace
9142 
\family default
9143 
 high forces the decoder to output video as frames, even if the MPEG2 stream
9144 
 is interlaced.
9145 
 This can be used to reproduce interlaced MPEG2 streams on progressive displays.
9146 
 Setting
9147 
\family typewriter
9148 
deinterlace
9149 
\family default
9150 
 is not recommended when reproducing a progressive MPEG2 stream on a progressive
9151 
 display.
9152 
 Setting
9153 
\family typewriter
9154 
deinterlace
9155 
\family default
9156 
 has no effect if the video modeline specifies interlaced output (
9157 
\family typewriter
9158 
interlaced
9159 
\family default
9160 
 set).
9161 
 Note no spatial or temporal interpolation is done (
9162 
\begin_inset Quotes eld
9163 
\end_inset
9164 
 
9165 
weaving
9166 
\begin_inset Quotes erd
9167 
\end_inset
9168 
 
9169 
).
9170 
\end_layout
9171 
 
9172 
\begin_layout Section
9173 
Test point
9174 
\end_layout
9175 
 
9176 
\begin_layout Standard
9177 
The MPEG2 decoder provides a test point for connecting a logic analyzer.
9178 
 Internally, the decoder contains various test points, only one of which
9179 
 is actually output to the logic analyzer.
9180 
 Which internal test point is output to the logic analyzer is determined
9181 
 by the contents of
9182 
\family typewriter
9183 
testpoint_sel
9184 
\family default
9185 
.
9186 
 The value of bits 0..31 of the test point can also be read by software.
9187 
 While this is no substitute for a logic analyzer, it is recognized that
9188 
 in many cases this may be the only option available.
9189 
\end_layout
9190 
 
9191 
\begin_layout Labeling
9192 
\labelwidthstring 00.00.0000
9193 
 
9194 
\family typewriter
9195 
testpoint_sel
9196 
\family default
9197 
 Used in hardware debugging.
9198 
  Determines which internal test point is multiplexed to the 34-channel
9199 
 logical analyzer test point.
9200 
\end_layout
9201 
 
9202 
\begin_layout Labeling
9203 
\labelwidthstring 00.00.0000
9204 
 
9205 
\family typewriter
9206 
testpoint
9207 
\family default
9208 
 Used in hardware debugging.
9209 
  Provides the current value of bits 0 to 31 of the 34-channel logical analyzer
9210 
 test point.
9211 
\end_layout
9212 
 
9213 
\begin_layout Chapter
9214 
\begin_inset CommandInset label
9215 
LatexCommand label
9216 
name "cha:Decoder-Sources"
9217 
 
9218 
\end_inset
9219 
 
9220 
Decoder Sources
9221 
\end_layout
9222 
 
9223 
\begin_layout Standard
9224 
Chapter
9225 
\begin_inset CommandInset ref
9226 
LatexCommand ref
9227 
reference "cha:Decoder-Sources"
9228 
 
9229 
\end_inset
9230 
 
9231 
 provides an overview of the decoder sources for the hardware engineer who
9232 
 wishes to synthesize or modify the decoder.
9233 
\end_layout
9234 
 
9235 
\begin_layout Section
9236 
Source Directory Structure
9237 
\end_layout
9238 
 
9239 
\begin_layout Standard
9240 
The source files are organized in directories as follows:
9241 
\end_layout
9242 
 
9243 
\begin_layout Standard
9244 
\begin_inset Tabular
9245
9246
9247
9248
9249
9250
9251
9252 
\begin_inset Text
9253 
 
9254 
\begin_layout Plain Layout
9255 
 
9256 
\family typewriter
9257 
bench/
9258 
\end_layout
9259 
 
9260 
\end_inset
9261
9262
9263 
\begin_inset Text
9264 
 
9265 
\begin_layout Plain Layout
9266 
 
9267 
\family typewriter
9268 
iverilog
9269 
\end_layout
9270 
 
9271 
\end_inset
9272
9273
9274 
\begin_inset Text
9275 
 
9276 
\begin_layout Plain Layout
9277 
Icarus behavioral simulation, page
9278 
\begin_inset CommandInset ref
9279 
LatexCommand pageref
9280 
reference "subsec:Icarus-Verilog-Simulation"
9281 
 
9282 
\end_inset
9283 
 
9284 
 
9285 
\end_layout
9286 
 
9287 
\end_inset
9288
9289
9290
9291
9292 
\begin_inset Text
9293 
 
9294 
\begin_layout Plain Layout
9295 
 
9296 
\family typewriter
9297 
doc/
9298 
\end_layout
9299 
 
9300 
\end_inset
9301
9302
9303 
\begin_inset Text
9304 
 
9305 
\begin_layout Plain Layout
9306 
 
9307 
\end_layout
9308 
 
9309 
\end_inset
9310
9311
9312 
\begin_inset Text
9313 
 
9314 
\begin_layout Plain Layout
9315 
Documentation
9316 
\end_layout
9317 
 
9318 
\end_inset
9319
9320
9321
9322
9323 
\begin_inset Text
9324 
 
9325 
\begin_layout Plain Layout
9326 
 
9327 
\family typewriter
9328 
rtl/
9329 
\end_layout
9330 
 
9331 
\end_inset
9332
9333
9334 
\begin_inset Text
9335 
 
9336 
\begin_layout Plain Layout
9337 
 
9338 
\family typewriter
9339 
mpeg2
9340 
\end_layout
9341 
 
9342 
\end_inset
9343
9344
9345 
\begin_inset Text
9346 
 
9347 
\begin_layout Plain Layout
9348 
MPEG2 decoder, page
9349 
\begin_inset CommandInset ref
9350 
LatexCommand pageref
9351 
reference "sec:MPEG2-Decoder"
9352 
 
9353 
\end_inset
9354 
 
9355 
 
9356 
\end_layout
9357 
 
9358 
\end_inset
9359
9360
9361
9362
9363 
\begin_inset Text
9364 
 
9365 
\begin_layout Plain Layout
9366 
 
9367 
\family typewriter
9368 
tools/
9369 
\end_layout
9370 
 
9371 
\end_inset
9372
9373
9374 
\begin_inset Text
9375 
 
9376 
\begin_layout Plain Layout
9377 
 
9378 
\family typewriter
9379 
fsmgraph
9380 
\end_layout
9381 
 
9382 
\end_inset
9383
9384
9385 
\begin_inset Text
9386 
 
9387 
\begin_layout Plain Layout
9388 
Finite state machine graphs, page
9389 
\begin_inset CommandInset ref
9390 
LatexCommand pageref
9391 
reference "subsec:FSM-Graphs"
9392 
 
9393 
\end_inset
9394 
 
9395 
 
9396 
\end_layout
9397 
 
9398 
\end_inset
9399
9400
9401
9402
9403 
\begin_inset Text
9404 
 
9405 
\begin_layout Plain Layout
9406 
 
9407 
\end_layout
9408 
 
9409 
\end_inset
9410
9411
9412 
\begin_inset Text
9413 
 
9414 
\begin_layout Plain Layout
9415 
 
9416 
\family typewriter
9417 
ieee1180
9418 
\end_layout
9419 
 
9420 
\end_inset
9421
9422
9423 
\begin_inset Text
9424 
 
9425 
\begin_layout Plain Layout
9426 
IEEE1180 IDCT accuracy test, page
9427 
\begin_inset CommandInset ref
9428 
LatexCommand pageref
9429 
reference "subsec:IEEE-1180-IDCT"
9430 
 
9431 
\end_inset
9432 
 
9433 
 
9434 
\end_layout
9435 
 
9436 
\end_inset
9437
9438
9439
9440
9441 
\begin_inset Text
9442 
 
9443 
\begin_layout Plain Layout
9444 
 
9445 
\end_layout
9446 
 
9447 
\end_inset
9448
9449
9450 
\begin_inset Text
9451 
 
9452 
\begin_layout Plain Layout
9453 
 
9454 
\family typewriter
9455 
logicport
9456 
\end_layout
9457 
 
9458 
\end_inset
9459
9460
9461 
\begin_inset Text
9462 
 
9463 
\begin_layout Plain Layout
9464 
Logicport logic analyzer, page
9465 
\begin_inset CommandInset ref
9466 
LatexCommand pageref
9467 
reference "subsec:Logicport-Logic-Analyzer"
9468 
 
9469 
\end_inset
9470 
 
9471 
 
9472 
\end_layout
9473 
 
9474 
\end_inset
9475
9476
9477
9478
9479 
\begin_inset Text
9480 
 
9481 
\begin_layout Plain Layout
9482 
 
9483 
\end_layout
9484 
 
9485 
\end_inset
9486
9487
9488 
\begin_inset Text
9489 
 
9490 
\begin_layout Plain Layout
9491 
 
9492 
\family typewriter
9493 
mpeg2dec
9494 
\end_layout
9495 
 
9496 
\end_inset
9497
9498
9499 
\begin_inset Text
9500 
 
9501 
\begin_layout Plain Layout
9502 
Reference MPEG2 decoder, page
9503 
\begin_inset CommandInset ref
9504 
LatexCommand pageref
9505 
reference "subsec:mpeg2decode"
9506 
 
9507 
\end_inset
9508 
 
9509 
 
9510 
\end_layout
9511 
 
9512 
\end_inset
9513
9514
9515
9516
9517 
\begin_inset Text
9518 
 
9519 
\begin_layout Plain Layout
9520 
 
9521 
\end_layout
9522 
 
9523 
\end_inset
9524
9525
9526 
\begin_inset Text
9527 
 
9528 
\begin_layout Plain Layout
9529 
 
9530 
\family typewriter
9531 
streams
9532 
\end_layout
9533 
 
9534 
\end_inset
9535
9536
9537 
\begin_inset Text
9538 
 
9539 
\begin_layout Plain Layout
9540 
MPEG2 test streams, page
9541 
\begin_inset CommandInset ref
9542 
LatexCommand pageref
9543 
reference "subsec:MPEG2-Test-Streams"
9544 
 
9545 
\end_inset
9546 
 
9547 
 
9548 
\end_layout
9549 
 
9550 
\end_inset
9551
9552
9553
9554 
 
9555 
\end_inset
9556 
 
9557 
 
9558 
\end_layout
9559 
 
9560 
\begin_layout Standard
9561 
A linux system with Icarus Verilog is suggested, but not required, as developmen
9562 
t environment.
9563 
\end_layout
9564 
 
9565 
\begin_layout Section
9566 
\begin_inset CommandInset label
9567 
LatexCommand label
9568 
name "sec:MPEG2-Decoder"
9569 
 
9570 
\end_inset
9571 
 
9572 
MPEG2 Decoder
9573 
\end_layout
9574 
 
9575 
\begin_layout Standard
9576 
The
9577 
\family typewriter
9578 
rtl/mpeg2
9579 
\family default
9580 
 directory contains the sources of the MPEG2 decoder itself.
9581 
 This section describes the changes most likely to be needed when instantiating
9582 
 the decoder: changing default modeline, changing FIFO sizes, choosing dual-port
9583 
ed ram and fifo models, changing memory mapping.
9584 
 In addition, references are provided for the IDCT and bilinear chroma upsamplin
9585 
g algorithms.
9586 
\end_layout
9587 
 
9588 
\begin_layout Subsection
9589 
FIFO sizes
9590 
\end_layout
9591 
 
9592 
\begin_layout Standard
9593 
Fifo depth and almost full/almost empty thresholds are defined in
9594 
\family typewriter
9595 
fifo_size.v
9596 
\family default
9597 
.
9598 
 Note setting fifo depths and thresholds to arbitrary values can result
9599 
 in decoder deadlock.
9600 
\end_layout
9601 
 
9602 
\begin_layout Standard
9603 
Figure
9604 
\begin_inset CommandInset ref
9605 
LatexCommand ref
9606 
reference "fig:MPEG2-decoder-dataflow"
9607 
 
9608 
\end_inset
9609 
 
9610 
 shows MPEG2 decoder data flow.
9611 
 Together,
9612 
\family typewriter
9613 
framestore_request
9614 
\family default
9615 
, memory controller and
9616 
\family typewriter
9617 
framestore_response
9618 
\family default
9619 
 implement the framestore.
9620 
 Communication with the framestore is through fifos.
9621 
 The incoming MPEG2 stream is written to
9622 
\family typewriter
9623 
vbuf_write_fifo
9624 
\family default
9625 
.
9626 
 
9627 
\family typewriter
9628 
framestore_request
9629 
\family default
9630 
 reads the stream from
9631 
\family typewriter
9632 
vbuf_write_fifo
9633 
\family default
9634 
 and writes it to the circular video buffer in memory.
9635 
 If
9636 
\family typewriter
9637 
vbuf_read_fifo
9638 
\family default
9639 
 is almost empty,
9640 
\family typewriter
9641 
framestore_request
9642 
\family default
9643 
 issues memory read requests for the circular video buffer.
9644 
 
9645 
\family typewriter
9646 
framestore_response
9647 
\family default
9648 
 receives data from the circular video buffer and writes the data to
9649 
\family typewriter
9650 
vbuf_read_fifo
9651 
\family default
9652 
.
9653 
 The net result is
9654 
\family typewriter
9655 
vbuf_write_fifo
9656 
\family default
9657 
, circular video buffer and
9658 
\family typewriter
9659 
vbuf_read_fifo
9660 
\family default
9661 
 acting as a single, huge fifo.
9662 
\end_layout
9663 
 
9664 
\begin_layout Standard
9665 
Variable-length decoding reads the MPEG2 stream from
9666 
\family typewriter
9667 
vbuf_read_fifo
9668 
\family default
9669 
, and produces motion vectors and run/length codes.
9670 
 Run/length decoding, inverse quantizing, inverse zig-zag and inverse discrete
9671 
 cosine transform (IDCT) read the run/length codes and produce the prediction
9672 
 error.
9673 
 The prediction error is written to
9674 
\family typewriter
9675 
predict_err_fifo
9676 
\family default
9677 
, one row of eight pixels at a time.
9678 
\end_layout
9679 
 
9680 
\begin_layout Standard
9681 
Motion compensation address generation
9682 
\family typewriter
9683 
motcomp_addrgen
9684 
\family default
9685 
 translates the motion vectors into three sets of memory addresses: the
9686 
 addresses where the forward motion compensation pixels can be read, the
9687 
 addresses where the backward motion compensation pixels can be read, and
9688 
 the addresses where the reconstructed pixels can be written.
9689 
 The addresses of the pixels needed for forward and backward motion compensation
9690 
 are written to the
9691 
\family typewriter
9692 
fwd_reader
9693 
\family default
9694 
 and
9695 
\family typewriter
9696 
bwd_reader
9697 
\family default
9698 
 address fifos.
9699 
 The address of the reconstructed pixels is written to the motion compensation
9700 
 destination fifo,
9701 
\family typewriter
9702 
dst_fifo
9703 
\family default
9704 
.
9705 
 The memory subsystem reads the
9706 
\family typewriter
9707 
fwd_reader
9708 
\family default
9709 
 and
9710 
\family typewriter
9711 
bwd_reader
9712 
\family default
9713 
 address fifos, and writes the pixel values to the
9714 
\family typewriter
9715 
fwd_reader
9716 
\family default
9717 
 and
9718 
\family typewriter
9719 
bwd_reader
9720 
\family default
9721 
 data fifos.
9722 
 
9723 
\end_layout
9724 
 
9725 
\begin_layout Standard
9726 
Motion compensation reconstruction
9727 
\family typewriter
9728 
motcomp_recon
9729 
\family default
9730 
 adds pixel values read from forward motion compensation data fifo, backward
9731 
 motion compensation data fifo and prediction error, and writes the result
9732 
 to the address read from the motion compensation destination fifo.
9733 
\begin_inset Separator latexpar
9734 
\end_inset
9735 
 
9736 
 
9737 
\end_layout
9738 
 
9739 
\begin_layout Standard
9740 
Displaying the video image requires chroma resampling and yuv to rgb conversion.
9741 
 Resampling address generation
9742 
\family typewriter
9743 
resample_addrgen
9744 
\family default
9745 
 scans the reconstructed video image, line by line.
9746 
 The addresses of the pixels are written to the
9747 
\family typewriter
9748 
disp_reader
9749 
\family default
9750 
 address fifo.
9751 
 The memory subsystem reads the addresses from
9752 
\family typewriter
9753 
disp_reader
9754 
\family default
9755 
 address fifo and writes the pixel values to the
9756 
\family typewriter
9757 
disp_reader
9758 
\family default
9759 
 data fifo.
9760 
 
9761 
\family typewriter
9762 
resample_dta
9763 
\family default
9764 
 reads the pixel values from the
9765 
\family typewriter
9766 
disp_reader
9767 
\family default
9768 
 data fifo, while
9769 
\family typewriter
9770 
resample_bilinear
9771 
\family default
9772 
 does the actual bilinear chroma upsampling calculations.
9773 
 After conversion from yuv to rgb, the pixels are written to the pixel queue
9774 
 
9775 
\family typewriter
9776 
pixel_queue
9777 
\family default
9778 
 which adapts between decoder and DVI clocks.
9779 
 
9780 
\begin_inset Float figure
9781 
wide false
9782 
sideways false
9783 
status open
9784 
 
9785 
\begin_layout Plain Layout
9786 
\align center
9787 
\begin_inset Graphics
9788 
        filename fifos.ps
9789 
        lyxscale 33
9790 
        height 90theight%
9791 
 
9792 
\end_inset
9793 
 
9794 
 
9795 
\end_layout
9796 
 
9797 
\begin_layout Plain Layout
9798 
\begin_inset Caption Standard
9799 
 
9800 
\begin_layout Plain Layout
9801 
\begin_inset CommandInset label
9802 
LatexCommand label
9803 
name "fig:MPEG2-decoder-dataflow"
9804 
 
9805 
\end_inset
9806 
 
9807 
MPEG2 decoder dataflow
9808 
\end_layout
9809 
 
9810 
\end_inset
9811 
 
9812 
 
9813 
\end_layout
9814 
 
9815 
\end_inset
9816 
 
9817 
 
9818 
\end_layout
9819 
 
9820 
\begin_layout Standard
9821 
Note the memory tag fifo
9822 
\family typewriter
9823 
mem_tag_fifo
9824 
\family default
9825 
 between
9826 
\family typewriter
9827 
framestore_request
9828 
\family default
9829 
 and
9830 
\family typewriter
9831 
framestore_response
9832 
\family default
9833 
.
9834 
 For every memory read request,
9835 
\family typewriter
9836 
framestore_request
9837 
\family default
9838 
 writes a tag to the memory tag fifo.
9839 
 The tag identifies the source of the memory read request: circular video
9840 
 buffer, forward and backward motion compensation, or resampling.
9841 
 For every data word received from memory,
9842 
\family typewriter
9843 
framestore_response
9844 
\family default
9845 
 reads a tag from the memory tag fifo, and writes the data word received
9846 
 from memory to the data fifo corresponding to the tag.
9847 
 If the memory tag fifo is almost full,
9848 
\family typewriter
9849 
framestore_request
9850 
\family default
9851 
 stops issuing memory read or write requests.
9852 
 As a result, the number of outstanding memory read requests is always less
9853 
 than or equal to the size of the memory tag fifo.
9854 
\end_layout
9855 
 
9856 
\begin_layout Standard
9857 
When modifying
9858 
\family typewriter
9859 
fifo_size.v
9860 
\family default
9861 
, care should be taken the fifos can never overflow.
9862 
 Note that when
9863 
\family typewriter
9864 
framestore_request
9865 
\family default
9866 
 stops issuing memory read requests, there still may be outstanding memory
9867 
 read requests in the memory request queue.
9868 
 The number of outstanding memory read requests is always smaller than,
9869 
 or equal to, the size of the memory tag fifo.
9870 
 When modifying
9871 
\family typewriter
9872 
fifo_size.v
9873 
\family default
9874 
, remember fifos which receive data from memory may receive outstanding
9875 
 data, even after
9876 
\family typewriter
9877 
framestore_request
9878 
\family default
9879 
 has stopped sending memory read requests.
9880 
\end_layout
9881 
 
9882 
\begin_layout Subsection
9883 
Dual-ported memory and FIFO models
9884 
\end_layout
9885 
 
9886 
\begin_layout Standard
9887 
FPGAs typically provide dedicated on-chip fifo's and dual-port RAMs.
9888 
 The designer then has to choose between using vendor-provided FIFOs and
9889 
 dual-port RAMs or writing his own.
9890 
\end_layout
9891 
 
9892 
\begin_layout Standard
9893 
The file
9894 
\family typewriter
9895 
wrappers.v
9896 
\family default
9897 
 defines the implementation of all dual-port RAMs and fifos in the design.
9898 
 For each component, two versions are provided: one where read and write
9899 
 port share a common clock; and one where read and write port have independent
9900 
 clocks.
9901 
 
9902 
\end_layout
9903 
 
9904 
\begin_layout Labeling
9905 
\labelwidthstring 00.00.0000
9906 
 
9907 
\family typewriter
9908 
dpram_sc
9909 
\family default
9910 
 dual-ported ram, same clock for read and write ports
9911 
\end_layout
9912 
 
9913 
\begin_layout Labeling
9914 
\labelwidthstring 00.00.0000
9915 
 
9916 
\family typewriter
9917 
dpram_dc
9918 
\family default
9919 
 dual-ported ram, different clock for read and write ports
9920 
\end_layout
9921 
 
9922 
\begin_layout Labeling
9923 
\labelwidthstring 00.00.0000
9924 
 
9925 
\family typewriter
9926 
fifo_sc
9927 
\family default
9928 
 fifo, same clock for read and write ports
9929 
\end_layout
9930 
 
9931 
\begin_layout Labeling
9932 
\labelwidthstring 00.00.0000
9933 
 
9934 
\family typewriter
9935 
fifo_dc
9936 
\family default
9937 
 fifo, different clock for read and write ports
9938 
\end_layout
9939 
 
9940 
\begin_layout Standard
9941 
The dual-ported rams are inferred from code in
9942 
\family typewriter
9943 
wrappers.v
9944 
\family default
9945 
.
9946 
 The fifos can be either implemented in Verilog, or instantiated as FPGA
9947 
 primitives, depending upon
9948 
\family typewriter
9949 
wrappers.v
9950 
\family default
9951 
.
9952 
 Following fifo models are available:
9953 
\end_layout
9954 
 
9955 
\begin_layout Labeling
9956 
\labelwidthstring 00.00.0000
9957 
 
9958 
\family typewriter
9959 
xfifo_sc.v
9960 
\family default
9961 
 fifo, same clock for read and write port.
9962 
\end_layout
9963 
 
9964 
\begin_layout Labeling
9965 
\labelwidthstring 00.00.0000
9966 
 
9967 
\family typewriter
9968 
generic_fifo_sc_b.v
9969 
\family default
9970 
 OpenCores generic fifo, different clock for read and write ports.
9971 
\end_layout
9972 
 
9973 
\begin_layout Labeling
9974 
\labelwidthstring 00.00.0000
9975 
 
9976 
\family typewriter
9977 
xilinx_fifo_sc.v
9978 
\family default
9979 
 Xilinx Virtex-5 fifo, same clock for read and write ports.
9980 
 Uses
9981 
\family typewriter
9982 
xilinx_fifo.v
9983 
\family default
9984 
,
9985 
\family typewriter
9986 
xilinx_fifo144.v
9987 
\family default
9988 
 and
9989 
\family typewriter
9990 
xilinx_fifo216.v
9991 
\family default
9992 
.
9993 
\end_layout
9994 
 
9995 
\begin_layout Labeling
9996 
\labelwidthstring 00.00.0000
9997 
 
9998 
\family typewriter
9999 
xilinx_fifo_dc.v
10000 
\family default
10001 
 Xilinx Virtex-5 fifo, different clock for read and write ports.
10002 
 Uses
10003 
\family typewriter
10004 
xilinx_fifo.v
10005 
\family default
10006 
,
10007 
\family typewriter
10008 
xilinx_fifo144.v
10009 
\family default
10010 
 and
10011 
\family typewriter
10012 
xilinx_fifo216.v
10013 
\family default
10014 
.
10015 
\end_layout
10016 
 
10017 
\begin_layout Standard
10018 
 
10019 
\family typewriter
10020 
xilinx_fifo_sc.v
10021 
\family default
10022 
 and
10023 
\family typewriter
10024 
xilinx_fifo_dc.v
10025 
\family default
10026 
 implement fifos using FIFO18, FIFO18_36, FIFO36 or FIFO36_72 Virtex-5 primitive
10027 
s.
10028 
 Table
10029 
\begin_inset CommandInset ref
10030 
LatexCommand ref
10031 
reference "tab:Xilinx-FIFO-address"
10032 
 
10033 
\end_inset
10034 
 
10035 
 lists available data and address widths.
10036 
 If a
10037 
\family typewriter
10038 
xilinx_fifo_sc.v
10039 
\family default
10040 
 or a
10041 
\family typewriter
10042 
xilinx_fifo_dc.v
10043 
\family default
10044 
 is instantiated with data and/or address widths different from those in
10045 
 Table
10046 
\begin_inset CommandInset ref
10047 
LatexCommand ref
10048 
reference "tab:Xilinx-FIFO-address"
10049 
 
10050 
\end_inset
10051 
 
10052 
, the actual fifo will be larger and/or wider.
10053 
 
10054 
\begin_inset Float table
10055 
wide false
10056 
sideways false
10057 
status open
10058 
 
10059 
\begin_layout Plain Layout
10060 
\begin_inset ERT
10061 
status open
10062 
 
10063 
\begin_layout Plain Layout
10064 
 
10065 
 
10066 
\backslash
10067 
centering
10068 
\end_layout
10069 
 
10070 
\end_inset
10071 
 
10072 
 
10073 
\begin_inset Tabular
10074
10075
10076
10077
10078
10079
10080
10081
10082 
\begin_inset Text
10083 
 
10084 
\begin_layout Plain Layout
10085 
Data bits
10086 
\end_layout
10087 
 
10088 
\end_inset
10089
10090
10091 
\begin_inset Text
10092 
 
10093 
\begin_layout Plain Layout
10094 
Address bits
10095 
\end_layout
10096 
 
10097 
\end_inset
10098
10099
10100 
\begin_inset Text
10101 
 
10102 
\begin_layout Plain Layout
10103 
FIFO Depth
10104 
\end_layout
10105 
 
10106 
\end_inset
10107
10108
10109 
\begin_inset Text
10110 
 
10111 
\begin_layout Plain Layout
10112 
Implementation
10113 
\end_layout
10114 
 
10115 
\end_inset
10116
10117
10118
10119
10120 
\begin_inset Text
10121 
 
10122 
\begin_layout Plain Layout
10123 
4
10124 
\end_layout
10125 
 
10126 
\end_inset
10127
10128
10129 
\begin_inset Text
10130 
 
10131 
\begin_layout Plain Layout
10132 
13
10133 
\end_layout
10134 
 
10135 
\end_inset
10136
10137
10138 
\begin_inset Text
10139 
 
10140 
\begin_layout Plain Layout
10141 
8192
10142 
\end_layout
10143 
 
10144 
\end_inset
10145
10146
10147 
\begin_inset Text
10148 
 
10149 
\begin_layout Plain Layout
10150 
FIFO36
10151 
\end_layout
10152 
 
10153 
\end_inset
10154
10155
10156
10157
10158 
\begin_inset Text
10159 
 
10160 
\begin_layout Plain Layout
10161 
4
10162 
\end_layout
10163 
 
10164 
\end_inset
10165
10166
10167 
\begin_inset Text
10168 
 
10169 
\begin_layout Plain Layout
10170 
12
10171 
\end_layout
10172 
 
10173 
\end_inset
10174
10175
10176 
\begin_inset Text
10177 
 
10178 
\begin_layout Plain Layout
10179 
4096
10180 
\end_layout
10181 
 
10182 
\end_inset
10183
10184
10185 
\begin_inset Text
10186 
 
10187 
\begin_layout Plain Layout
10188 
FIFO18
10189 
\end_layout
10190 
 
10191 
\end_inset
10192
10193
10194
10195
10196 
\begin_inset Text
10197 
 
10198 
\begin_layout Plain Layout
10199 
9
10200 
\end_layout
10201 
 
10202 
\end_inset
10203
10204
10205 
\begin_inset Text
10206 
 
10207 
\begin_layout Plain Layout
10208 
12
10209 
\end_layout
10210 
 
10211 
\end_inset
10212
10213
10214 
\begin_inset Text
10215 
 
10216 
\begin_layout Plain Layout
10217 
4096
10218 
\end_layout
10219 
 
10220 
\end_inset
10221
10222
10223 
\begin_inset Text
10224 
 
10225 
\begin_layout Plain Layout
10226 
FIFO36
10227 
\end_layout
10228 
 
10229 
\end_inset
10230
10231
10232
10233
10234 
\begin_inset Text
10235 
 
10236 
\begin_layout Plain Layout
10237 
9
10238 
\end_layout
10239 
 
10240 
\end_inset
10241
10242
10243 
\begin_inset Text
10244 
 
10245 
\begin_layout Plain Layout
10246 
11
10247 
\end_layout
10248 
 
10249 
\end_inset
10250
10251
10252 
\begin_inset Text
10253 
 
10254 
\begin_layout Plain Layout
10255 
2048
10256 
\end_layout
10257 
 
10258 
\end_inset
10259
10260
10261 
\begin_inset Text
10262 
 
10263 
\begin_layout Plain Layout
10264 
FIFO18
10265 
\end_layout
10266 
 
10267 
\end_inset
10268
10269
10270
10271
10272 
\begin_inset Text
10273 
 
10274 
\begin_layout Plain Layout
10275 
18
10276 
\end_layout
10277 
 
10278 
\end_inset
10279
10280
10281 
\begin_inset Text
10282 
 
10283 
\begin_layout Plain Layout
10284 
11
10285 
\end_layout
10286 
 
10287 
\end_inset
10288
10289
10290 
\begin_inset Text
10291 
 
10292 
\begin_layout Plain Layout
10293 
2048
10294 
\end_layout
10295 
 
10296 
\end_inset
10297
10298
10299 
\begin_inset Text
10300 
 
10301 
\begin_layout Plain Layout
10302 
FIFO36
10303 
\end_layout
10304 
 
10305 
\end_inset
10306
10307
10308
10309
10310 
\begin_inset Text
10311 
 
10312 
\begin_layout Plain Layout
10313 
18
10314 
\end_layout
10315 
 
10316 
\end_inset
10317
10318
10319 
\begin_inset Text
10320 
 
10321 
\begin_layout Plain Layout
10322 
10
10323 
\end_layout
10324 
 
10325 
\end_inset
10326
10327
10328 
\begin_inset Text
10329 
 
10330 
\begin_layout Plain Layout
10331 
1024
10332 
\end_layout
10333 
 
10334 
\end_inset
10335
10336
10337 
\begin_inset Text
10338 
 
10339 
\begin_layout Plain Layout
10340 
FIFO18
10341 
\end_layout
10342 
 
10343 
\end_inset
10344
10345
10346
10347
10348 
\begin_inset Text
10349 
 
10350 
\begin_layout Plain Layout
10351 
36
10352 
\end_layout
10353 
 
10354 
\end_inset
10355
10356
10357 
\begin_inset Text
10358 
 
10359 
\begin_layout Plain Layout
10360 
10
10361 
\end_layout
10362 
 
10363 
\end_inset
10364
10365
10366 
\begin_inset Text
10367 
 
10368 
\begin_layout Plain Layout
10369 
1024
10370 
\end_layout
10371 
 
10372 
\end_inset
10373
10374
10375 
\begin_inset Text
10376 
 
10377 
\begin_layout Plain Layout
10378 
FIFO36
10379 
\end_layout
10380 
 
10381 
\end_inset
10382
10383
10384
10385
10386 
\begin_inset Text
10387 
 
10388 
\begin_layout Plain Layout
10389 
36
10390 
\end_layout
10391 
 
10392 
\end_inset
10393
10394
10395 
\begin_inset Text
10396 
 
10397 
\begin_layout Plain Layout
10398 
9
10399 
\end_layout
10400 
 
10401 
\end_inset
10402
10403
10404 
\begin_inset Text
10405 
 
10406 
\begin_layout Plain Layout
10407 
512
10408 
\end_layout
10409 
 
10410 
\end_inset
10411
10412
10413 
\begin_inset Text
10414 
 
10415 
\begin_layout Plain Layout
10416 
FIFO18
10417 
\end_layout
10418 
 
10419 
\end_inset
10420
10421
10422
10423
10424 
\begin_inset Text
10425 
 
10426 
\begin_layout Plain Layout
10427 
72
10428 
\end_layout
10429 
 
10430 
\end_inset
10431
10432
10433 
\begin_inset Text
10434 
 
10435 
\begin_layout Plain Layout
10436 
9
10437 
\end_layout
10438 
 
10439 
\end_inset
10440
10441
10442 
\begin_inset Text
10443 
 
10444 
\begin_layout Plain Layout
10445 
512
10446 
\end_layout
10447 
 
10448 
\end_inset
10449
10450
10451 
\begin_inset Text
10452 
 
10453 
\begin_layout Plain Layout
10454 
FIFO36_72
10455 
\end_layout
10456 
 
10457 
\end_inset
10458
10459
10460
10461
10462 
\begin_inset Text
10463 
 
10464 
\begin_layout Plain Layout
10465 
144
10466 
\end_layout
10467 
 
10468 
\end_inset
10469
10470
10471 
\begin_inset Text
10472 
 
10473 
\begin_layout Plain Layout
10474 
9
10475 
\end_layout
10476 
 
10477 
\end_inset
10478
10479
10480 
\begin_inset Text
10481 
 
10482 
\begin_layout Plain Layout
10483 
512
10484 
\end_layout
10485 
 
10486 
\end_inset
10487
10488
10489 
\begin_inset Text
10490 
 
10491 
\begin_layout Plain Layout
10492 
2 * FIFO36_72
10493 
\end_layout
10494 
 
10495 
\end_inset
10496
10497
10498
10499
10500 
\begin_inset Text
10501 
 
10502 
\begin_layout Plain Layout
10503 
216
10504 
\end_layout
10505 
 
10506 
\end_inset
10507
10508
10509 
\begin_inset Text
10510 
 
10511 
\begin_layout Plain Layout
10512 
9
10513 
\end_layout
10514 
 
10515 
\end_inset
10516
10517
10518 
\begin_inset Text
10519 
 
10520 
\begin_layout Plain Layout
10521 
512
10522 
\end_layout
10523 
 
10524 
\end_inset
10525
10526
10527 
\begin_inset Text
10528 
 
10529 
\begin_layout Plain Layout
10530 
3 * FIFO36_72
10531 
\end_layout
10532 
 
10533 
\end_inset
10534
10535
10536
10537 
 
10538 
\end_inset
10539 
 
10540 
 
10541 
\end_layout
10542 
 
10543 
\begin_layout Plain Layout
10544 
\begin_inset Caption Standard
10545 
 
10546 
\begin_layout Plain Layout
10547 
\begin_inset CommandInset label
10548 
LatexCommand label
10549 
name "tab:Xilinx-FIFO-address"
10550 
 
10551 
\end_inset
10552 
 
10553 
Xilinx FIFO address widths
10554 
\end_layout
10555 
 
10556 
\end_inset
10557 
 
10558 
 
10559 
\end_layout
10560 
 
10561 
\end_inset
10562 
 
10563 
 
10564 
\end_layout
10565 
 
10566 
\begin_layout Subsection
10567 
Memory mapping
10568 
\end_layout
10569 
 
10570 
\begin_layout Standard
10571 
The MPEG2 decoder memory mapping is defined in
10572 
\family typewriter
10573 
rtl/mpeg2/mem_codes.v
10574 
\family default
10575 
.
10576 
 The default memory mapping needs 4 mbyte RAM and is sufficient for SDTV.
10577 
 By defining
10578 
\family typewriter
10579 
MP_AT_HL
10580 
\family default
10581 
 an alternative memory mapping can be chosen which requires 16 mbyte RAM
10582 
 and is sufficient for HDTV.
10583 
\end_layout
10584 
 
10585 
\begin_layout Standard
10586 
Translation of macroblock addresses to memory addresses is implemented in
10587 
 
10588 
\family typewriter
10589 
rtl/mpeg2/mem_addr.v
10590 
\family default
10591 
.
10592 
 A macroblock address, a signed motion vector (mv_x, mv_y) with halfpixel
10593 
 precision, and an signed offset (delta_x, delta_y) with pixel precision
10594 
 are translated to an address in memory.
10595 
\end_layout
10596 
 
10597 
\begin_layout Standard
10598 
The macroblock address is assumed to iterate over all allowable values:
10599 
 beginning at zero, incrementing by one, until after the final macroblock
10600 
 the macroblock address is reset to zero.
10601 
 Macroblock address has to be initialized to zero, or an error condition
10602 
 results.
10603 
 Macroblock address changes other than incrementing by one, remaining unchanged
10604 
 or resetting to zero also result in an error condition.
10605 
\end_layout
10606 
 
10607 
\begin_layout Standard
10608 
Note the motion vector (mv_x, mv_y) is scaled by a factor two when accessing
10609 
 chrominance as defined in
10610 
\begin_inset CommandInset citation
10611 
LatexCommand cite
10612 
after "par. 7.6.3.7"
10613 
key "key-1"
10614 
 
10615 
\end_inset
10616 
 
10617 
.
10618 
 The offset (delta_x, delta_y) remains unchanged when accessing chrominance
10619 
 blocks.
10620 
\end_layout
10621 
 
10622 
\begin_layout Standard
10623 
The translation of macroblock addresses and motion vectors to memory addresses
10624 
 in
10625 
\family typewriter
10626 
rtl/mpeg2/mem_addr.v
10627 
\family default
10628 
 has to be kept synchronized with the framestore dump task
10629 
\family typewriter
10630 
write_framestore
10631 
\family default
10632 
 in
10633 
\family typewriter
10634 
rtl/sim/mem_ctl.v
10635 
\family default
10636 
, else the framestore dumps made during simulation will not accurately represent
10637 
 framestore contents.
10638 
\end_layout
10639 
 
10640 
\begin_layout Standard
10641 
Note out-of-range memory accesses are translated to the ADDR_ERR address.
10642 
 If a memory request with address
10643 
\family typewriter
10644 
mem_req_rd_addr
10645 
\family default
10646 
 equal to ADDR_ERR occurs during simulation, simulation stops with an error
10647 
 message.
10648 
\end_layout
10649 
 
10650 
\begin_layout Standard
10651 
The MPEG2 decoder zeroes out the framestore after system reset or when the
10652 
 watchdog timer expires.
10653 
 The MPEG2 decoder writes zeroes to all addresses from FRAME_0_Y to VBUF_END
10654 
 when the
10655 
\family typewriter
10656 
rst
10657 
\family default
10658 
 input pin goes low or when the
10659 
\family typewriter
10660 
watchdog_rst
10661 
\family default
10662 
 pin goes low.
10663 
 
10664 
\end_layout
10665 
 
10666 
\begin_layout Subsection
10667 
Modeline
10668 
\end_layout
10669 
 
10670 
\begin_layout Standard
10671 
The default modeline is 800x600 progressive @ 60 Hz (SVGA).
10672 
 The
10673 
\family typewriter
10674 
modeline.v
10675 
\family default
10676 
 source contains the modeline parameters, and can be edited to change horizontal
10677 
 and vertical resolution, sync pulse width and position.
10678 
 The default pixel frequency on the ML505 is 38.21 MHz, and is defined in
10679 
 
10680 
\family typewriter
10681 
dotclock_synthesizer.v
10682 
\family default
10683 
.
10684 
 Note
10685 
\family typewriter
10686 
dotclock_synthesizer.v
10687 
\family default
10688 
 synthesizes two frequencies, dotclock and dotclock90, equal in frequency
10689 
 but 90 degrees phase shifted.
10690 
 The frequency synthesized is
10691 
\begin_inset Formula
10692 
\[
10693 
f_{out}=f_{osc}.r.\frac{DCM\_ADV\_INST.CLKFX\_MULTIPLY}{DCM\_ADV\_INST.CLKFX\_DIVIDE}
10694 
\]
10695 
 
10696 
\end_inset
10697 
 
10698 
 
10699 
\end_layout
10700 
 
10701 
\begin_layout Standard
10702 
where
10703 
\begin_inset Formula $f_{osc}$
10704 
\end_inset
10705 
 
10706 
 is the 100 MHz user clock frequency
10707 
\begin_inset Formula
10708 
\[
10709 
f_{osc}=100
10710 
\]
10711 
 
10712 
\end_inset
10713 
 
10714 
and
10715 
\begin_inset Formula
10716 
\[
10717 
r=\frac{PLL\_ADV\_INST.CLKFBOUT\_MULT}{PLL\_ADV\_INST.CLKOUT1\_DIVIDE}=0.25
10718 
\]
10719 
 
10720 
\end_inset
10721 
 
10722 
 To change pixel frequency, first calculate the multiplier and divider for
10723 
 the new frequency.
10724 
 Suppose one wishes to synthesize a frequency of 35 MHz:
10725 
\end_layout
10726 
 
10727 
\begin_layout LyX-Code
10728 
macpro mpeg2ether # ./mpeg2ether --dot_clock 35
10729 
\end_layout
10730 
 
10731 
\begin_layout LyX-Code
10732 
dotclock ftarget =  35.00 fout =  35.00 MHz
10733 
\begin_inset Newline newline
10734 
\end_inset
10735 
 
10736 
 multiplier:  7 divider:  5
10737 
\begin_inset Newline newline
10738 
\end_inset
10739 
 
10740 
 high frequency mode: 0 ch7301 lowfreq: 1 ch7301 colorbars: 0
10741 
\end_layout
10742 
 
10743 
\begin_layout Standard
10744 
A pixel frequency of 35 MHz requires a multiplier of 7 and a divider of
10745 
 5, with lowfreq asserted.
10746 
 Hence, in
10747 
\family typewriter
10748 
dvi/dotclock.v
10749 
\family default
10750 
:
10751 
\end_layout
10752 
 
10753 
\begin_layout LyX-Code
10754 
parameter [7:0]
10755 
\end_layout
10756 
 
10757 
\begin_layout LyX-Code
10758 
  DEFAULT_DIVIDER       = 8'd4, // Divider minus one, actually
10759 
\end_layout
10760 
 
10761 
\begin_layout LyX-Code
10762 
  DEFAULT_MULTIPLIER    = 8'd6; // Multiplier minus one, actually
10763 
\end_layout
10764 
 
10765 
\begin_layout LyX-Code
10766 
 
10767 
\end_layout
10768 
 
10769 
\begin_layout LyX-Code
10770 
parameter
10771 
\end_layout
10772 
 
10773 
\begin_layout LyX-Code
10774 
  DEFAULT_LOWFREQ       = 1'b1
10775 
\end_layout
10776 
 
10777 
\begin_layout LyX-Code
10778 
 
10779 
\end_layout
10780 
 
10781 
\begin_layout Standard
10782 
Note the modeline can be configured at any time using the
10783 
\family typewriter
10784 
mpeg2ether
10785 
\family default
10786 
 utility; it is only when changing the
10787 
\emph on
10788 
default
10789 
\emph default
10790 
 modeline that modifying the sources is necessary.
10791 
 The
10792 
\family typewriter
10793 
mpeg2ether
10794 
\family default
10795 
 utility is explained on page
10796 
\begin_inset CommandInset ref
10797 
LatexCommand pageref
10798 
reference "subsec:mpeg2ether"
10799 
 
10800 
\end_inset
10801 
 
10802 
.
10803 
\end_layout
10804 
 
10805 
\begin_layout Subsection
10806 
Inverse Discrete Cosine Transform
10807 
\end_layout
10808 
 
10809 
\begin_layout Standard
10810 
The IDCT algorithm used is described in
10811 
\begin_inset CommandInset citation
10812 
LatexCommand cite
10813 
key "key-3"
10814 
 
10815 
\end_inset
10816 
 
10817 
.
10818 
 A copy of document
10819 
\begin_inset CommandInset citation
10820 
LatexCommand cite
10821 
key "key-3"
10822 
 
10823 
\end_inset
10824 
 
10825 
 can be found in the
10826 
\family typewriter
10827 
doc
10828 
\family default
10829 
 directory.
10830 
 The IDCT implementation uses 12 18x18 multipliers and two dual-port rams,
10831 
 and can do streaming.
10832 
 Run-length decoding (
10833 
\family typewriter
10834 
rld.v
10835 
\family default
10836 
), inverse quantizing (
10837 
\family typewriter
10838 
iquant.v, zigzag_table.v
10839 
\family default
10840 
) and IDCT transform (
10841 
\family typewriter
10842 
idct.v
10843 
\family default
10844 
) all operate at the same speed of one pixel per clock.
10845 
 The IDCT meets the requirements of the former IEEE-1180.
10846 
\end_layout
10847 
 
10848 
\begin_layout Subsection
10849 
Bilinear chroma upsampling
10850 
\end_layout
10851 
 
10852 
\begin_layout Standard
10853 
The chrominance components have half the vertical and half the horizontal
10854 
 resolution of the luminance.
10855 
 To obtain equal chrominance and luminance resolution, bilinear chroma upsamplin
10856 
g is used.
10857 
 Bilinear chroma upsampling computes chroma pixel values by vertical and
10858 
 horizontal interpolation.
10859 
 Vertical interpolation implies adding two rows of chroma values with different
10860 
 weights.
10861 
 The chroma row closest to the luma row gets weight 3/4, while the chroma
10862 
 row farthest from the luma row gets weight 1/4.
10863 
 The document
10864 
\family typewriter
10865 
doc/bilinear.pdf
10866 
\family default
10867 
 shows the weights used.
10868 
\begin_inset Separator latexpar
10869 
\end_inset
10870 
 
10871 
 
10872 
\end_layout
10873 
 
10874 
\begin_layout Standard
10875 
Bilinear chroma upsampling is implemented in various source files, as described
10876 
 in Table
10877 
\begin_inset CommandInset ref
10878 
LatexCommand ref
10879 
reference "tab:Upsampling-source-files"
10880 
 
10881 
\end_inset
10882 
 
10883 
.
10884 
 
10885 
\begin_inset Float table
10886 
wide false
10887 
sideways false
10888 
status open
10889 
 
10890 
\begin_layout Plain Layout
10891 
\align center
10892 
\begin_inset Tabular
10893
10894
10895
10896
10897
10898
10899 
\begin_inset Text
10900 
 
10901 
\begin_layout Plain Layout
10902 
Source
10903 
\end_layout
10904 
 
10905 
\end_inset
10906
10907
10908 
\begin_inset Text
10909 
 
10910 
\begin_layout Plain Layout
10911 
Description
10912 
\end_layout
10913 
 
10914 
\end_inset
10915
10916
10917
10918
10919 
\begin_inset Text
10920 
 
10921 
\begin_layout Plain Layout
10922 
 
10923 
\family typewriter
10924 
resample.v
10925 
\end_layout
10926 
 
10927 
\end_inset
10928
10929
10930 
\begin_inset Text
10931 
 
10932 
\begin_layout Plain Layout
10933 
Upsampling top-level file
10934 
\end_layout
10935 
 
10936 
\end_inset
10937
10938
10939
10940
10941 
\begin_inset Text
10942 
 
10943 
\begin_layout Plain Layout
10944 
 
10945 
\family typewriter
10946 
resample_addrgen.v
10947 
\end_layout
10948 
 
10949 
\end_inset
10950
10951
10952 
\begin_inset Text
10953 
 
10954 
\begin_layout Plain Layout
10955 
Generates memory addresses of chroma/lumi rows
10956 
\end_layout
10957 
 
10958 
\end_inset
10959
10960
10961
10962
10963 
\begin_inset Text
10964 
 
10965 
\begin_layout Plain Layout
10966 
 
10967 
\family typewriter
10968 
resample_dta.v
10969 
\end_layout
10970 
 
10971 
\end_inset
10972
10973
10974 
\begin_inset Text
10975 
 
10976 
\begin_layout Plain Layout
10977 
Reads chroma/lumi rows from memory
10978 
\end_layout
10979 
 
10980 
\end_inset
10981
10982
10983
10984
10985 
\begin_inset Text
10986 
 
10987 
\begin_layout Plain Layout
10988 
 
10989 
\family typewriter
10990 
resample_bilinear.v
10991 
\end_layout
10992 
 
10993 
\end_inset
10994
10995
10996 
\begin_inset Text
10997 
 
10998 
\begin_layout Plain Layout
10999 
Performs bilinear upsampling calculations
11000 
\end_layout
11001 
 
11002 
\end_inset
11003
11004
11005
11006 
 
11007 
\end_inset
11008 
 
11009 
 
11010 
\end_layout
11011 
 
11012 
\begin_layout Plain Layout
11013 
\begin_inset Caption Standard
11014 
 
11015 
\begin_layout Plain Layout
11016 
\begin_inset CommandInset label
11017 
LatexCommand label
11018 
name "tab:Upsampling-source-files"
11019 
 
11020 
\end_inset
11021 
 
11022 
Upsampling source files
11023 
\end_layout
11024 
 
11025 
\end_inset
11026 
 
11027 
 
11028 
\end_layout
11029 
 
11030 
\begin_layout Plain Layout
11031 
 
11032 
\end_layout
11033 
 
11034 
\end_inset
11035 
 
11036 
 
11037 
\end_layout
11038 
 
11039 
\begin_layout Section
11040 
Simulation
11041 
\end_layout
11042 
 
11043 
\begin_layout Standard
11044 
Behavioral simulation using Icarus Verilog is described.
11045 
 For timing simulation consult your synthesis software.
11046 
\end_layout
11047 
 
11048 
\begin_layout Subsection
11049 
\begin_inset CommandInset label
11050 
LatexCommand label
11051 
name "subsec:Icarus-Verilog-Simulation"
11052 
 
11053 
\end_inset
11054 
 
11055 
Icarus Verilog Simulation
11056 
\end_layout
11057 
 
11058 
\begin_layout Standard
11059 
Behavioral simulation of the decoder can be performed using Icarus Verilog.
11060 
 The Icarus Verilog testbench in the
11061 
\family typewriter
11062 
bench/iverilog
11063 
\family default
11064 
 directory contains the following files:
11065 
\end_layout
11066 
 
11067 
\begin_layout Labeling
11068 
\labelwidthstring 00.00.0000
11069 
 
11070 
\family typewriter
11071 
testbench.v
11072 
\family default
11073 
 Top-level Verilog source; instantiates MPEG2 decoder.
11074 
\end_layout
11075 
 
11076 
\begin_layout Labeling
11077 
\labelwidthstring 00.00.0000
11078 
 
11079 
\family typewriter
11080 
mem_ctl.v
11081 
\family default
11082 
 Simple memory controller, for simulation only.
11083 
\end_layout
11084 
 
11085 
\begin_layout Labeling
11086 
\labelwidthstring 00.00.0000
11087 
 
11088 
\family typewriter
11089 
Makefile
11090 
\family default
11091 
 Makefile to create and run the simulation.
11092 
\end_layout
11093 
 
11094 
\begin_layout Labeling
11095 
\labelwidthstring 00.00.0000
11096 
 
11097 
\family typewriter
11098 
wrappers.v
11099 
\family default
11100 
 Wrapper for dual-port ram and fifos.
11101 
 Implements synchronous fifos using
11102 
\family typewriter
11103 
xfifo_sc.v
11104 
\family default
11105 
, and implements asynchronous fifos as OpenCores
11106 
\family typewriter
11107 
generic_fifo_sc_b.v
11108 
\family default
11109 
.
11110 
 
11111 
\end_layout
11112 
 
11113 
\begin_layout Labeling
11114 
\labelwidthstring 00.00.0000
11115 
 
11116 
\family typewriter
11117 
generic_dpram.v, generic_fifo_dc.v, generic_fifo_sc_b.v
11118 
\family default
11119 
 Opencores generic fifos.
11120 
\end_layout
11121 
 
11122 
\begin_layout Standard
11123 
Create the decoder is easy using the accompanying
11124 
\family typewriter
11125 
Makefile
11126 
\family default
11127 
.
11128 
 First, remove any files left over from a previous simulation:
11129 
\end_layout
11130 
 
11131 
\begin_layout LyX-Code
11132 
koen@macpro ~/xilinx/mpeg2/bench/iverilog $ make clean
11133 
\end_layout
11134 
 
11135 
\begin_layout LyX-Code
11136 
rm -f mpeg2 stream.dat testbench.lxt trace framestore_*.ppm tv_out_*.ppm
11137 
\end_layout
11138 
 
11139 
\begin_layout Standard
11140 
Now create the decoder:
11141 
\end_layout
11142 
 
11143 
\begin_layout LyX-Code
11144 
koen@macpro ~/xilinx/mpeg2/bench/iverilog $ make
11145 
\end_layout
11146 
 
11147 
\begin_layout LyX-Code
11148 
iverilog -D__IVERILOG__ -DMODELINE_SIF -I ../../rtl/mpeg2 -o mpeg2
11149 
\begin_inset Newline newline
11150 
\end_inset
11151 
 
11152 
 testbench.v mem_ctl.v wrappers.v generic_fifo_dc.v
11153 
\begin_inset Newline newline
11154 
\end_inset
11155 
 
11156 
 generic_fifo_sc_b.v generic_dpram.v ../../rtl/mpeg2/mpeg2video.v
11157 
\begin_inset Newline newline
11158 
\end_inset
11159 
 
11160 
../../rtl/mpeg2/vbuf.v ../../rtl/mpeg2/getbits.v
11161 
\begin_inset Newline newline
11162 
\end_inset
11163 
 
11164 
xxd -c 1 ../../tools/streams/stream-susi.mpg |
11165 
\begin_inset Newline newline
11166 
\end_inset
11167 
 
11168 
 cut -d
11169 
\backslash
11170 
  -f 2 > stream.dat
11171 
\end_layout
11172 
 
11173 
\begin_layout Standard
11174 
This executes two commands:
11175 
\end_layout
11176 
 
11177 
\begin_layout Itemize
11178 
 
11179 
\family typewriter
11180 
iverilog
11181 
\family default
11182 
 to compile the Verilog sources to an executable,
11183 
\family typewriter
11184 
mpeg2
11185 
\family default
11186 
.
11187 
\end_layout
11188 
 
11189 
\begin_layout Itemize
11190 
 
11191 
\family typewriter
11192 
xxd
11193 
\family default
11194 
 to convert the binary MPEG2 program stream file
11195 
\family typewriter
11196 
stream.mpg
11197 
\family default
11198 
 to an ASCII file
11199 
\family typewriter
11200 
stream.dat
11201 
\family default
11202 
, which the simulator can load.
11203 
\end_layout
11204 
 
11205 
\begin_layout Standard
11206 
When compiling the Verilog sources, two Verilog parameters are defined on
11207 
 the command line:
11208 
\family typewriter
11209 
__IVERILOG__
11210 
\family default
11211 
 and
11212 
\family typewriter
11213 
MODELINE_SIF
11214 
\family default
11215 
.
11216 
 The first Verilog define,
11217 
\family typewriter
11218 
__IVERILOG__
11219 
\family default
11220 
 , is defined only during simulation, and never during synthesis.
11221 
 It is used to enable several run-time checks which only make sense in a
11222 
 simulation environment.
11223 
 The second Verilog define,
11224 
\family typewriter
11225 
MODELINE_SIF
11226 
\family default
11227 
, chooses one of several pre-defined video output formats from
11228 
\family typewriter
11229 
modeline.v
11230 
\family default
11231 
.
11232 
\end_layout
11233 
 
11234 
\begin_layout Standard
11235 
Finally, run the newly created executable
11236 
\family typewriter
11237 
mpeg2:
11238 
\end_layout
11239 
 
11240 
\begin_layout LyX-Code
11241 
koen@macpro ~/xilinx/mpeg2/bench/iverilog $ make test
11242 
\end_layout
11243 
 
11244 
\begin_layout LyX-Code
11245 
IVERILOG_DUMPER=lxt ./mpeg2
11246 
\end_layout
11247 
 
11248 
\begin_layout LyX-Code
11249 
LXT info: dumpfile testbench.lxt opened for output.
11250 
\end_layout
11251 
 
11252 
\begin_layout LyX-Code
11253 
$readmemh(stream.dat): Not enough words in the read file for
11254 
\begin_inset Newline newline
11255 
\end_inset
11256 
 
11257 
 requested range.
11258 
\end_layout
11259 
 
11260 
\begin_layout LyX-Code
11261 
testbench.mem_ctl.write_framestore      dumping framestore to
11262 
\begin_inset Newline newline
11263 
\end_inset
11264 
 
11265 
               framestore_000.ppm @  0.02 ms
11266 
\end_layout
11267 
 
11268 
\begin_layout LyX-Code
11269 
testbench.mem_ctl.write_framestore      dumping framestore to
11270 
\begin_inset Newline newline
11271 
\end_inset
11272 
 
11273 
               framestore_001.ppm @  0.02 ms
11274 
\end_layout
11275 
 
11276 
\begin_layout LyX-Code
11277 
testbench.mpeg2.motcomp macroblock_address:    0
11278 
\end_layout
11279 
 
11280 
\begin_layout LyX-Code
11281 
testbench.mpeg2.motcomp macroblock_address:    1
11282 
\end_layout
11283 
 
11284 
\begin_layout LyX-Code
11285 
testbench.mpeg2.motcomp macroblock_address:    2
11286 
\end_layout
11287 
 
11288 
\begin_layout LyX-Code
11289 
testbench.mpeg2.motcomp macroblock_address:    3
11290 
\end_layout
11291 
 
11292 
\begin_layout Standard
11293 
During simulation, the environment variable
11294 
\family typewriter
11295 
IVERILOG_DUMPER=lxt
11296 
\family default
11297 
 is set.
11298 
 This instructs the simulator to produce a dumpfile in the more compact
11299 
 
11300 
\family typewriter
11301 
lxt
11302 
\family default
11303 
 format, instead of the default
11304 
\family typewriter
11305 
vcd
11306 
\family default
11307 
 format.
11308 
\end_layout
11309 
 
11310 
\begin_layout Standard
11311 
By default, simulator output includes the macroblock address.
11312 
 This allows easy monitoring of decoder progress
11313 
\family typewriter
11314 
.
11315 
\end_layout
11316 
 
11317 
\begin_layout Standard
11318 
Each Verilog source file contains a
11319 
\family typewriter
11320 
define DEBUG
11321 
\family default
11322 
 statement, which can be uncommented or commented to switch trace output
11323 
 for that particular source file on or off.
11324 
 
11325 
\end_layout
11326 
 
11327 
\begin_layout Standard
11328 
During simulation, two kinds of graphics files are written: framestore dumps
11329 
 
11330 
\family typewriter
11331 
framestore_*.ppm
11332 
\family default
11333 
 and video captures
11334 
\family typewriter
11335 
tv_out_*.ppm
11336 
\family default
11337 
.
11338 
 The framestore is where the decoder stores already decoded images.
11339 
 These are Portable Pixmap graphics files in ASCII format.
11340 
 Figure
11341 
\begin_inset CommandInset ref
11342 
LatexCommand ref
11343 
reference "fig:susi-framestore-dump"
11344 
 
11345 
\end_inset
11346 
 
11347 
 shows a sample framestore dump.
11348 
\end_layout
11349 
 
11350 
\begin_layout Standard
11351 
The framestore consists of four frames and the on-screen display (OSD).
11352 
 The first two frames contain I and P pictures, while the last two frames
11353 
 contain B-pictures.
11354 
 Each frame consists of y (luminance), u and v (chrominance) information,
11355 
 with u and v having half the horizontal and half the vertical resolution
11356 
 of y.
11357 
 In the framestore dump, uninitialized memory is displayed in green.
11358 
 Looking at figure
11359 
\begin_inset CommandInset ref
11360 
LatexCommand ref
11361 
reference "fig:susi-framestore-dump"
11362 
 
11363 
\end_inset
11364 
 
11365 
, one can see that the first three frames of the framestore have already
11366 
 been written; the decoder is halfway through the fourth frame.
11367 
 The On-Screen Display, at the bottom of the framestore dump, has not been
11368 
 initialized yet.
11369 
\end_layout
11370 
 
11371 
\begin_layout Standard
11372 
During simulation, by default, the framestore is dumped whenever a new frame
11373 
 begins; and every 200 macroblocks.
11374 
 As a framestore dump is a graphics file in ASCII format, one can also look
11375 
 at the file using standard text file utilities.
11376 
 These are the first 12 lines of a sample framestore dump:
11377 
\end_layout
11378 
 
11379 
\begin_layout LyX-Code
11380 
koen@macpro ~/xilinx/mpeg2/bench/iverilog
11381 
\family typewriter
11382 
$ head -12 framestore_0001.ppm
11383 
\end_layout
11384 
 
11385 
\begin_layout LyX-Code
11386 
 
11387 
\family typewriter
11388 
P3
11389 
\end_layout
11390 
 
11391 
\begin_layout LyX-Code
11392 
 
11393 
\family typewriter
11394 
# mpeg2 framestore dump @ 11.81 ms
11395 
\end_layout
11396 
 
11397 
\begin_layout LyX-Code
11398 
 
11399 
\family typewriter
11400 
# frame number 2
11401 
\end_layout
11402 
 
11403 
\begin_layout LyX-Code
11404 
 
11405 
\family typewriter
11406 
# horizontal_size 352
11407 
\end_layout
11408 
 
11409 
\begin_layout LyX-Code
11410 
 
11411 
\family typewriter
11412 
# vertical_size 288
11413 
\end_layout
11414 
 
11415 
\begin_layout LyX-Code
11416 
 
11417 
\family typewriter
11418 
# display_horizontal_size 0
11419 
\end_layout
11420 
 
11421 
\begin_layout LyX-Code
11422 
 
11423 
\family typewriter
11424 
# display_vertical_size 0
11425 
\end_layout
11426 
 
11427 
\begin_layout LyX-Code
11428 
 
11429 
\family typewriter
11430 
# mb_width 22
11431 
\end_layout
11432 
 
11433 
\begin_layout LyX-Code
11434 
 
11435 
\family typewriter
11436 
# mb_height 18
11437 
\end_layout
11438 
 
11439 
\begin_layout LyX-Code
11440 
 
11441 
\family typewriter
11442 
# picture_structure frame picture
11443 
\end_layout
11444 
 
11445 
\begin_layout LyX-Code
11446 
 
11447 
\family typewriter
11448 
# chroma_format 420
11449 
\end_layout
11450 
 
11451 
\begin_layout LyX-Code
11452 
 
11453 
\family typewriter
11454 
352 2618 255
11455 
\end_layout
11456 
 
11457 
\begin_layout LyX-Code
11458 
 
11459 
\family typewriter
11460 
255 255 255 255 255 255 255 255 255 255 255 255
11461 
\begin_inset Newline newline
11462 
\end_inset
11463 
 
11464 
 255 255 255 255 255 255 255 255 255 255 255 255
11465 
\end_layout
11466 
 
11467 
\begin_layout Standard
11468 
The header of the framestore dump contains information about decoder status
11469 
 at the moment of the dump.
11470 
\begin_inset Float figure
11471 
wide false
11472 
sideways false
11473 
status open
11474 
 
11475 
\begin_layout Plain Layout
11476 
\align center
11477 
\begin_inset ERT
11478 
status open
11479 
 
11480 
\begin_layout Plain Layout
11481 
 
11482 
 
11483 
\backslash
11484 
centering
11485 
\end_layout
11486 
 
11487 
\end_inset
11488 
 
11489 
 
11490 
\begin_inset Graphics
11491 
        filename framestore_001.ps
11492 
        lyxscale 20
11493 
        height 80theight%
11494 
 
11495 
\end_inset
11496 
 
11497 
 
11498 
\end_layout
11499 
 
11500 
\begin_layout Plain Layout
11501 
\begin_inset Caption Standard
11502 
 
11503 
\begin_layout Plain Layout
11504 
\begin_inset CommandInset label
11505 
LatexCommand label
11506 
name "fig:susi-framestore-dump"
11507 
 
11508 
\end_inset
11509 
 
11510 
Framestore dump
11511 
\end_layout
11512 
 
11513 
\end_inset
11514 
 
11515 
 
11516 
\end_layout
11517 
 
11518 
\end_inset
11519 
 
11520 
 
11521 
\end_layout
11522 
 
11523 
\begin_layout Standard
11524 
Figure
11525 
\begin_inset CommandInset ref
11526 
LatexCommand ref
11527 
reference "fig:susi-video-output"
11528 
 
11529 
\end_inset
11530 
 
11531 
 shows video capture file
11532 
\family typewriter
11533 
tv_out_0000.ppm.
11534 
\family default
11535 
Horizontal sync is displayed as a vertical black stripe, to the right of
11536 
 the image.
11537 
 Vertical sync is displayed as a horizontal black stripe, below the image
11538 
 area.
11539 
 Blanking is displayed in a dark grey.
11540 
 The position of picture, horizontal sync and vertical sync in figure
11541 
\begin_inset CommandInset ref
11542 
LatexCommand ref
11543 
reference "fig:susi-video-output"
11544 
 
11545 
\end_inset
11546 
 
11547 
 is as defined in figure
11548 
\begin_inset CommandInset ref
11549 
LatexCommand ref
11550 
reference "fig:Progressive-Video"
11551 
 
11552 
\end_inset
11553 
 
11554 
.
11555 
 As with the framestore dumps, one can look at
11556 
\family typewriter
11557 
tv_out_0000.ppm
11558 
\family default
11559 
 using standard text utilities.
11560 
 
11561 
\end_layout
11562 
 
11563 
\begin_layout LyX-Code
11564 
koen@macpro ~/xilinx/mpeg2/bench/iverilog
11565 
\family typewriter
11566 
$ head -10 tv_out_0000.ppm
11567 
\end_layout
11568 
 
11569 
\begin_layout LyX-Code
11570 
 
11571 
\family typewriter
11572 
P3
11573 
\end_layout
11574 
 
11575 
\begin_layout LyX-Code
11576 
 
11577 
\family typewriter
11578 
# picture 1 @ 10.73 ms
11579 
\end_layout
11580 
 
11581 
\begin_layout LyX-Code
11582 
 
11583 
\family typewriter
11584 
# horizontal resolution 352 sync_start 381 sync_end 388 length 458
11585 
\end_layout
11586 
 
11587 
\begin_layout LyX-Code
11588 
 
11589 
\family typewriter
11590 
# vertical resolution 288 sync_start 295 sync_end 298 length 315
11591 
\end_layout
11592 
 
11593 
\begin_layout LyX-Code
11594 
 
11595 
\family typewriter
11596 
# interlaced 0 halfline 175
11597 
\end_layout
11598 
 
11599 
\begin_layout LyX-Code
11600 
 
11601 
\family typewriter
11602 
459 316 255
11603 
\end_layout
11604 
 
11605 
\begin_layout LyX-Code
11606 
 
11607 
\family typewriter
11608 
 
11609 
\end_layout
11610 
 
11611 
\begin_layout LyX-Code
11612 
 
11613 
\family typewriter
11614 
 
11615 
\end_layout
11616 
 
11617 
\begin_layout LyX-Code
11618 
 
11619 
\family typewriter
11620 
3 0 3
11621 
\end_layout
11622 
 
11623 
\begin_layout LyX-Code
11624 
 
11625 
\family typewriter
11626 
2 0 2
11627 
\end_layout
11628 
 
11629 
\begin_layout Standard
11630 
The header of the video capture file contains information about the video
11631 
 modeline at the moment of video capture.
11632 
\begin_inset Float figure
11633 
wide false
11634 
sideways false
11635 
status open
11636 
 
11637 
\begin_layout Plain Layout
11638 
\begin_inset ERT
11639 
status open
11640 
 
11641 
\begin_layout Plain Layout
11642 
 
11643 
 
11644 
\backslash
11645 
centering
11646 
\end_layout
11647 
 
11648 
\end_inset
11649 
 
11650 
 
11651 
\begin_inset Graphics
11652 
        filename tv_out_0.ps
11653 
        width 60line%
11654 
 
11655 
\end_inset
11656 
 
11657 
 
11658 
\end_layout
11659 
 
11660 
\begin_layout Plain Layout
11661 
\begin_inset Caption Standard
11662 
 
11663 
\begin_layout Plain Layout
11664 
\begin_inset CommandInset label
11665 
LatexCommand label
11666 
name "fig:susi-video-output"
11667 
 
11668 
\end_inset
11669 
 
11670 
Video output capture
11671 
\end_layout
11672 
 
11673 
\end_inset
11674 
 
11675 
 
11676 
\end_layout
11677 
 
11678 
\end_inset
11679 
 
11680 
 
11681 
\end_layout
11682 
 
11683 
\begin_layout Standard
11684 
To end the simulation, go to the window where iverilog is running and type
11685 
 
11686 
\family typewriter
11687 
ctrl-c finish
11688 
\family default
11689 
.
11690 
 The simulator will finish writing
11691 
\family typewriter
11692 
trace
11693 
\family default
11694 
 and
11695 
\family typewriter
11696 
testbench.lxt
11697 
\family default
11698 
 files, and return control to the command prompt.
11699 
 
11700 
\end_layout
11701 
 
11702 
\begin_layout Standard
11703 
The binary file
11704 
\family typewriter
11705 
testbench.lxt
11706 
\family default
11707 
 is a log of all wire and register changes which occurred during simulation.
11708 
 
11709 
\family typewriter
11710 
testbench.lxt
11711 
\family default
11712 
 can be displayed using vcd viewers such as
11713 
\family typewriter
11714 
gtkwave
11715 
\family default
11716 
.
11717 
 
11718 
\end_layout
11719 
 
11720 
\begin_layout LyX-Code
11721 
koen@macpro ~/xilinx/mpeg2/bench/iverilog
11722 
\family typewriter
11723 
$ gtkwave testbench.lxt &
11724 
\end_layout
11725 
 
11726 
\begin_layout Standard
11727 
Once
11728 
\family typewriter
11729 
testbench.lxt
11730 
\family default
11731 
 file has been loaded in
11732 
\family typewriter
11733 
gtkwave
11734 
\family default
11735 
, internal decoder wires and registers can be displayed as waveforms.
11736 
\end_layout
11737 
 
11738 
\begin_layout Subsection
11739 
\begin_inset CommandInset label
11740 
LatexCommand label
11741 
name "subsec:Conformance-Tests"
11742 
 
11743 
\end_inset
11744 
 
11745 
Conformance Tests
11746 
\end_layout
11747 
 
11748 
\begin_layout Standard
11749 
The
11750 
\family typewriter
11751 
bench/conformance
11752 
\family default
11753 
 directory contains a testbench for the ISO/IEC 13818-4 MPEG2 conformance
11754 
 tests.
11755 
 The testbench assumes the ISO/IEC 13818-4 conformance test bitstreams are
11756 
 available on your system.
11757 
 The ISO/IEC 13818-4 MPEG2 Conformance test bitstreams for Main Profile
11758 
 @ Main Level can be downloaded from the ISO web site using the
11759 
\family typewriter
11760 
tools/streams/retrieve
11761 
\family default
11762 
 script.
11763 
\end_layout
11764 
 
11765 
\begin_layout Standard
11766 
Typing
11767 
\family typewriter
11768 
make clean test
11769 
\family default
11770 
 in the
11771 
\family typewriter
11772 
bench/conformance
11773 
\family default
11774 
 directory simulates all MP@ML conformance test bitstreams.
11775 
 Table
11776 
\begin_inset CommandInset ref
11777 
LatexCommand ref
11778 
reference "tab:Conformance-Test-Suite"
11779 
 
11780 
\end_inset
11781 
 
11782 
 summarizes test results.
11783 
 
11784 
\end_layout
11785 
 
11786 
\begin_layout Standard
11787 
When running the compatibility tests, note the decoder is not MPEG1-compatible,
11788 
 and does not decode MPEG1 streams.
11789 
 The MPEG2 decoder decodes MPEG2 4:2:0 program streams only.
11790 
 
11791 
\begin_inset Float table
11792 
wide false
11793 
sideways false
11794 
status open
11795 
 
11796 
\begin_layout Plain Layout
11797 
\begin_inset Tabular
11798
11799
11800
11801
11802
11803
11804
11805 
\begin_inset Text
11806 
 
11807 
\begin_layout Plain Layout
11808 
Test bitstream
11809 
\end_layout
11810 
 
11811 
\end_inset
11812
11813
11814 
\begin_inset Text
11815 
 
11816 
\begin_layout Plain Layout
11817 
Profile and level
11818 
\end_layout
11819 
 
11820 
\end_inset
11821
11822
11823 
\begin_inset Text
11824 
 
11825 
\begin_layout Plain Layout
11826 
Remarks
11827 
\end_layout
11828 
 
11829 
\end_inset
11830
11831
11832
11833
11834 
\begin_inset Text
11835 
 
11836 
\begin_layout Plain Layout
11837 
 
11838 
\family typewriter
11839 
tcela/tcela-16-matrices
11840 
\end_layout
11841 
 
11842 
\end_inset
11843
11844
11845 
\begin_inset Text
11846 
 
11847 
\begin_layout Plain Layout
11848 
 
11849 
\family roman
11850 
\series medium
11851 
\shape up
11852 
\size normal
11853 
\emph off
11854 
\bar no
11855 
\noun off
11856 
\color none
11857 
11172-2
11858 
\end_layout
11859 
 
11860 
\end_inset
11861
11862
11863 
\begin_inset Text
11864 
 
11865 
\begin_layout Plain Layout
11866 
Fail (MPEG1 stream)
11867 
\end_layout
11868 
 
11869 
\end_inset
11870
11871
11872
11873
11874 
\begin_inset Text
11875 
 
11876 
\begin_layout Plain Layout
11877 
 
11878 
\family typewriter
11879 
tcela/tcela-18-d-pict
11880 
\end_layout
11881 
 
11882 
\end_inset
11883
11884
11885 
\begin_inset Text
11886 
 
11887 
\begin_layout Plain Layout
11888 
 
11889 
\family roman
11890 
\series medium
11891 
\shape up
11892 
\size normal
11893 
\emph off
11894 
\bar no
11895 
\noun off
11896 
\color none
11897 
11172-2
11898 
\end_layout
11899 
 
11900 
\end_inset
11901
11902
11903 
\begin_inset Text
11904 
 
11905 
\begin_layout Plain Layout
11906 
Fail (MPEG1 stream)
11907 
\end_layout
11908 
 
11909 
\end_inset
11910
11911
11912
11913
11914 
\begin_inset Text
11915 
 
11916 
\begin_layout Plain Layout
11917 
 
11918 
\family typewriter
11919 
compcore/ccm1
11920 
\end_layout
11921 
 
11922 
\end_inset
11923
11924
11925 
\begin_inset Text
11926 
 
11927 
\begin_layout Plain Layout
11928 
 
11929 
\family roman
11930 
\series medium
11931 
\shape up
11932 
\size normal
11933 
\emph off
11934 
\bar no
11935 
\noun off
11936 
\color none
11937 
11172-2
11938 
\end_layout
11939 
 
11940 
\end_inset
11941
11942
11943 
\begin_inset Text
11944 
 
11945 
\begin_layout Plain Layout
11946 
Fail (MPEG1 stream)
11947 
\end_layout
11948 
 
11949 
\end_inset
11950
11951
11952
11953
11954 
\begin_inset Text
11955 
 
11956 
\begin_layout Plain Layout
11957 
 
11958 
\family typewriter
11959 
tcela/tcela-19-wide
11960 
\end_layout
11961 
 
11962 
\end_inset
11963
11964
11965 
\begin_inset Text
11966 
 
11967 
\begin_layout Plain Layout
11968 
 
11969 
\family roman
11970 
\series medium
11971 
\shape up
11972 
\size normal
11973 
\emph off
11974 
\bar no
11975 
\noun off
11976 
\color none
11977 
11172-2
11978 
\end_layout
11979 
 
11980 
\end_inset
11981
11982
11983 
\begin_inset Text
11984 
 
11985 
\begin_layout Plain Layout
11986 
Fail (MPEG1 stream)
11987 
\end_layout
11988 
 
11989 
\end_inset
11990
11991
11992
11993
11994 
\begin_inset Text
11995 
 
11996 
\begin_layout Plain Layout
11997 
 
11998 
\family typewriter
11999 
toshiba/toshiba_DPall-0
12000 
\end_layout
12001 
 
12002 
\end_inset
12003
12004
12005 
\begin_inset Text
12006 
 
12007 
\begin_layout Plain Layout
12008 
 
12009 
\family roman
12010 
\series medium
12011 
\shape up
12012 
\size normal
12013 
\emph off
12014 
\bar no
12015 
\noun off
12016 
\color none
12017 
SP@ML
12018 
\end_layout
12019 
 
12020 
\end_inset
12021
12022
12023 
\begin_inset Text
12024 
 
12025 
\begin_layout Plain Layout
12026 
 
12027 
\end_layout
12028 
 
12029 
\end_inset
12030
12031
12032
12033
12034 
\begin_inset Text
12035 
 
12036 
\begin_layout Plain Layout
12037 
 
12038 
\family typewriter
12039 
nokia/nokia6_dual
12040 
\end_layout
12041 
 
12042 
\end_inset
12043
12044
12045 
\begin_inset Text
12046 
 
12047 
\begin_layout Plain Layout
12048 
 
12049 
\family roman
12050 
\series medium
12051 
\shape up
12052 
\size normal
12053 
\emph off
12054 
\bar no
12055 
\noun off
12056 
\color none
12057 
SP@ML
12058 
\end_layout
12059 
 
12060 
\end_inset
12061
12062
12063 
\begin_inset Text
12064 
 
12065 
\begin_layout Plain Layout
12066 
 
12067 
\end_layout
12068 
 
12069 
\end_inset
12070
12071
12072
12073
12074 
\begin_inset Text
12075 
 
12076 
\begin_layout Plain Layout
12077 
 
12078 
\family typewriter
12079 
nokia/nokia6_dual60
12080 
\end_layout
12081 
 
12082 
\end_inset
12083
12084
12085 
\begin_inset Text
12086 
 
12087 
\begin_layout Plain Layout
12088 
 
12089 
\family roman
12090 
\series medium
12091 
\shape up
12092 
\size normal
12093 
\emph off
12094 
\bar no
12095 
\noun off
12096 
\color none
12097 
SP@ML
12098 
\end_layout
12099 
 
12100 
\end_inset
12101
12102
12103 
\begin_inset Text
12104 
 
12105 
\begin_layout Plain Layout
12106 
 
12107 
\end_layout
12108 
 
12109 
\end_inset
12110
12111
12112
12113
12114 
\begin_inset Text
12115 
 
12116 
\begin_layout Plain Layout
12117 
 
12118 
\family typewriter
12119 
nokia/nokia_7
12120 
\end_layout
12121 
 
12122 
\end_inset
12123
12124
12125 
\begin_inset Text
12126 
 
12127 
\begin_layout Plain Layout
12128 
 
12129 
\family roman
12130 
\series medium
12131 
\shape up
12132 
\size normal
12133 
\emph off
12134 
\bar no
12135 
\noun off
12136 
\color none
12137 
SP@ML
12138 
\end_layout
12139 
 
12140 
\end_inset
12141
12142
12143 
\begin_inset Text
12144 
 
12145 
\begin_layout Plain Layout
12146 
 
12147 
\end_layout
12148 
 
12149 
\end_inset
12150
12151
12152
12153
12154 
\begin_inset Text
12155 
 
12156 
\begin_layout Plain Layout
12157 
 
12158 
\family typewriter
12159 
tcela/tcela-14-bff-dp
12160 
\end_layout
12161 
 
12162 
\end_inset
12163
12164
12165 
\begin_inset Text
12166 
 
12167 
\begin_layout Plain Layout
12168 
 
12169 
\family roman
12170 
\series medium
12171 
\shape up
12172 
\size normal
12173 
\emph off
12174 
\bar no
12175 
\noun off
12176 
\color none
12177 
SP@ML
12178 
\end_layout
12179 
 
12180 
\end_inset
12181
12182
12183 
\begin_inset Text
12184 
 
12185 
\begin_layout Plain Layout
12186 
 
12187 
\end_layout
12188 
 
12189 
\end_inset
12190
12191
12192
12193
12194 
\begin_inset Text
12195 
 
12196 
\begin_layout Plain Layout
12197 
 
12198 
\family typewriter
12199 
ibm/ibm-bw-v3
12200 
\end_layout
12201 
 
12202 
\end_inset
12203
12204
12205 
\begin_inset Text
12206 
 
12207 
\begin_layout Plain Layout
12208 
 
12209 
\family roman
12210 
\series medium
12211 
\shape up
12212 
\size normal
12213 
\emph off
12214 
\bar no
12215 
\noun off
12216 
\color none
12217 
SP@ML
12218 
\end_layout
12219 
 
12220 
\end_inset
12221
12222
12223 
\begin_inset Text
12224 
 
12225 
\begin_layout Plain Layout
12226 
 
12227 
\end_layout
12228 
 
12229 
\end_inset
12230
12231
12232
12233
12234 
\begin_inset Text
12235 
 
12236 
\begin_layout Plain Layout
12237 
 
12238 
\family typewriter
12239 
tcela/tcela-8-fp-dp
12240 
\end_layout
12241 
 
12242 
\end_inset
12243
12244
12245 
\begin_inset Text
12246 
 
12247 
\begin_layout Plain Layout
12248 
 
12249 
\family roman
12250 
\series medium
12251 
\shape up
12252 
\size normal
12253 
\emph off
12254 
\bar no
12255 
\noun off
12256 
\color none
12257 
SP@ML
12258 
\end_layout
12259 
 
12260 
\end_inset
12261
12262
12263 
\begin_inset Text
12264 
 
12265 
\begin_layout Plain Layout
12266 
 
12267 
\end_layout
12268 
 
12269 
\end_inset
12270
12271
12272
12273
12274 
\begin_inset Text
12275 
 
12276 
\begin_layout Plain Layout
12277 
 
12278 
\family typewriter
12279 
tcela/tcela-9-fp-dp
12280 
\end_layout
12281 
 
12282 
\end_inset
12283
12284
12285 
\begin_inset Text
12286 
 
12287 
\begin_layout Plain Layout
12288 
 
12289 
\family roman
12290 
\series medium
12291 
\shape up
12292 
\size normal
12293 
\emph off
12294 
\bar no
12295 
\noun off
12296 
\color none
12297 
SP@ML
12298 
\end_layout
12299 
 
12300 
\end_inset
12301
12302
12303 
\begin_inset Text
12304 
 
12305 
\begin_layout Plain Layout
12306 
1 bit off
12307 
\end_layout
12308 
 
12309 
\end_inset
12310
12311
12312
12313
12314 
\begin_inset Text
12315 
 
12316 
\begin_layout Plain Layout
12317 
 
12318 
\family typewriter
12319 
mei/MEI.stream16v2
12320 
\end_layout
12321 
 
12322 
\end_inset
12323
12324
12325 
\begin_inset Text
12326 
 
12327 
\begin_layout Plain Layout
12328 
 
12329 
\family roman
12330 
\series medium
12331 
\shape up
12332 
\size normal
12333 
\emph off
12334 
\bar no
12335 
\noun off
12336 
\color none
12337 
SP@ML
12338 
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12339 
 
12340 
\end_inset
12341
12342
12343 
\begin_inset Text
12344 
 
12345 
\begin_layout Plain Layout
12346 
Fail (MPEG1 stream)
12347 
\end_layout
12348 
 
12349 
\end_inset
12350
12351
12352
12353
12354 
\begin_inset Text
12355 
 
12356 
\begin_layout Plain Layout
12357 
 
12358 
\family typewriter
12359 
mei/MEI.stream16.long
12360 
\end_layout
12361 
 
12362 
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12363
12364
12365 
\begin_inset Text
12366 
 
12367 
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12368 
 
12369 
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12370 
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12371 
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12372 
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12373 
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12374 
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12375 
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12376 
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12377 
SP@ML
12378 
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12379 
 
12380 
\end_inset
12381
12382
12383 
\begin_inset Text
12384 
 
12385 
\begin_layout Plain Layout
12386 
Fail (MPEG1 stream)
12387 
\end_layout
12388 
 
12389 
\end_inset
12390
12391
12392
12393
12394 
\begin_inset Text
12395 
 
12396 
\begin_layout Plain Layout
12397 
 
12398 
\family typewriter
12399 
ntr/ntr_skipped_v3
12400 
\end_layout
12401 
 
12402 
\end_inset
12403
12404
12405 
\begin_inset Text
12406 
 
12407 
\begin_layout Plain Layout
12408 
 
12409 
\family roman
12410 
\series medium
12411 
\shape up
12412 
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12413 
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12414 
\bar no
12415 
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12416 
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12417 
SP@ML
12418 
\end_layout
12419 
 
12420 
\end_inset
12421
12422
12423 
\begin_inset Text
12424 
 
12425 
\begin_layout Plain Layout
12426 
 
12427 
\end_layout
12428 
 
12429 
\end_inset
12430
12431
12432
12433
12434 
\begin_inset Text
12435 
 
12436 
\begin_layout Plain Layout
12437 
 
12438 
\family typewriter
12439 
teracom/teracom_vlc4
12440 
\end_layout
12441 
 
12442 
\end_inset
12443
12444
12445 
\begin_inset Text
12446 
 
12447 
\begin_layout Plain Layout
12448 
 
12449 
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12450 
\series medium
12451 
\shape up
12452 
\size normal
12453 
\emph off
12454 
\bar no
12455 
\noun off
12456 
\color none
12457 
SP@ML
12458 
\end_layout
12459 
 
12460 
\end_inset
12461
12462
12463 
\begin_inset Text
12464 
 
12465 
\begin_layout Plain Layout
12466 
 
12467 
\end_layout
12468 
 
12469 
\end_inset
12470
12471
12472
12473
12474 
\begin_inset Text
12475 
 
12476 
\begin_layout Plain Layout
12477 
 
12478 
\family typewriter
12479 
tcela/tcela-15-stuffing
12480 
\end_layout
12481 
 
12482 
\end_inset
12483
12484
12485 
\begin_inset Text
12486 
 
12487 
\begin_layout Plain Layout
12488 
 
12489 
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12490 
\series medium
12491 
\shape up
12492 
\size normal
12493 
\emph off
12494 
\bar no
12495 
\noun off
12496 
\color none
12497 
SP@ML
12498 
\end_layout
12499 
 
12500 
\end_inset
12501
12502
12503 
\begin_inset Text
12504 
 
12505 
\begin_layout Plain Layout
12506 
 
12507 
\end_layout
12508 
 
12509 
\end_inset
12510
12511
12512
12513
12514 
\begin_inset Text
12515 
 
12516 
\begin_layout Plain Layout
12517 
 
12518 
\family typewriter
12519 
tcela/tcela-17-dots
12520 
\end_layout
12521 
 
12522 
\end_inset
12523
12524
12525 
\begin_inset Text
12526 
 
12527 
\begin_layout Plain Layout
12528 
 
12529 
\family roman
12530 
\series medium
12531 
\shape up
12532 
\size normal
12533 
\emph off
12534 
\bar no
12535 
\noun off
12536 
\color none
12537 
SP@ML
12538 
\end_layout
12539 
 
12540 
\end_inset
12541
12542
12543 
\begin_inset Text
12544 
 
12545 
\begin_layout Plain Layout
12546 
 
12547 
\end_layout
12548 
 
12549 
\end_inset
12550
12551
12552
12553
12554 
\begin_inset Text
12555 
 
12556 
\begin_layout Plain Layout
12557 
 
12558 
\family typewriter
12559 
gi/gi4
12560 
\end_layout
12561 
 
12562 
\end_inset
12563
12564
12565 
\begin_inset Text
12566 
 
12567 
\begin_layout Plain Layout
12568 
 
12569 
\family roman
12570 
\series medium
12571 
\shape up
12572 
\size normal
12573 
\emph off
12574 
\bar no
12575 
\noun off
12576 
\color none
12577 
MP@ML
12578 
\end_layout
12579 
 
12580 
\end_inset
12581
12582
12583 
\begin_inset Text
12584 
 
12585 
\begin_layout Plain Layout
12586 
 
12587 
\end_layout
12588 
 
12589 
\end_inset
12590
12591
12592
12593
12594 
\begin_inset Text
12595 
 
12596 
\begin_layout Plain Layout
12597 
 
12598 
\family typewriter
12599 
gi/gi6
12600 
\end_layout
12601 
 
12602 
\end_inset
12603
12604
12605 
\begin_inset Text
12606 
 
12607 
\begin_layout Plain Layout
12608 
 
12609 
\family roman
12610 
\series medium
12611 
\shape up
12612 
\size normal
12613 
\emph off
12614 
\bar no
12615 
\noun off
12616 
\color none
12617 
MP@ML
12618 
\end_layout
12619 
 
12620 
\end_inset
12621
12622
12623 
\begin_inset Text
12624 
 
12625 
\begin_layout Plain Layout
12626 
 
12627 
\end_layout
12628 
 
12629 
\end_inset
12630
12631
12632
12633
12634 
\begin_inset Text
12635 
 
12636 
\begin_layout Plain Layout
12637 
 
12638 
\family typewriter
12639 
gi/gi_from_tape
12640 
\end_layout
12641 
 
12642 
\end_inset
12643
12644
12645 
\begin_inset Text
12646 
 
12647 
\begin_layout Plain Layout
12648 
 
12649 
\family roman
12650 
\series medium
12651 
\shape up
12652 
\size normal
12653 
\emph off
12654 
\bar no
12655 
\noun off
12656 
\color none
12657 
MP@ML
12658 
\end_layout
12659 
 
12660 
\end_inset
12661
12662
12663 
\begin_inset Text
12664 
 
12665 
\begin_layout Plain Layout
12666 
 
12667 
\end_layout
12668 
 
12669 
\end_inset
12670
12671
12672
12673
12674 
\begin_inset Text
12675 
 
12676 
\begin_layout Plain Layout
12677 
 
12678 
\family typewriter
12679 
gi/gi7
12680 
\end_layout
12681 
 
12682 
\end_inset
12683
12684
12685 
\begin_inset Text
12686 
 
12687 
\begin_layout Plain Layout
12688 
 
12689 
\family roman
12690 
\series medium
12691 
\shape up
12692 
\size normal
12693 
\emph off
12694 
\bar no
12695 
\noun off
12696 
\color none
12697 
MP@ML
12698 
\end_layout
12699 
 
12700 
\end_inset
12701
12702
12703 
\begin_inset Text
12704 
 
12705 
\begin_layout Plain Layout
12706 
 
12707 
\end_layout
12708 
 
12709 
\end_inset
12710
12711
12712
12713
12714 
\begin_inset Text
12715 
 
12716 
\begin_layout Plain Layout
12717 
 
12718 
\family typewriter
12719 
gi/gi_9
12720 
\end_layout
12721 
 
12722 
\end_inset
12723
12724
12725 
\begin_inset Text
12726 
 
12727 
\begin_layout Plain Layout
12728 
 
12729 
\family roman
12730 
\series medium
12731 
\shape up
12732 
\size normal
12733 
\emph off
12734 
\bar no
12735 
\noun off
12736 
\color none
12737 
MP@ML
12738 
\end_layout
12739 
 
12740 
\end_inset
12741
12742
12743 
\begin_inset Text
12744 
 
12745 
\begin_layout Plain Layout
12746 
 
12747 
\end_layout
12748 
 
12749 
\end_inset
12750
12751
12752
12753
12754 
\begin_inset Text
12755 
 
12756 
\begin_layout Plain Layout
12757 
 
12758 
\family typewriter
12759 
ti/TI_cl_2
12760 
\end_layout
12761 
 
12762 
\end_inset
12763
12764
12765 
\begin_inset Text
12766 
 
12767 
\begin_layout Plain Layout
12768 
 
12769 
\family roman
12770 
\series medium
12771 
\shape up
12772 
\size normal
12773 
\emph off
12774 
\bar no
12775 
\noun off
12776 
\color none
12777 
MP@ML
12778 
\end_layout
12779 
 
12780 
\end_inset
12781
12782
12783 
\begin_inset Text
12784 
 
12785 
\begin_layout Plain Layout
12786 
 
12787 
\end_layout
12788 
 
12789 
\end_inset
12790
12791
12792
12793
12794 
\begin_inset Text
12795 
 
12796 
\begin_layout Plain Layout
12797 
 
12798 
\family typewriter
12799 
tceh/tceh_conf2
12800 
\end_layout
12801 
 
12802 
\end_inset
12803
12804
12805 
\begin_inset Text
12806 
 
12807 
\begin_layout Plain Layout
12808 
 
12809 
\family roman
12810 
\series medium
12811 
\shape up
12812 
\size normal
12813 
\emph off
12814 
\bar no
12815 
\noun off
12816 
\color none
12817 
MP@ML
12818 
\end_layout
12819 
 
12820 
\end_inset
12821
12822
12823 
\begin_inset Text
12824 
 
12825 
\begin_layout Plain Layout
12826 
 
12827 
\end_layout
12828 
 
12829 
\end_inset
12830
12831
12832
12833
12834 
\begin_inset Text
12835 
 
12836 
\begin_layout Plain Layout
12837 
 
12838 
\family typewriter
12839 
mei/mei.2conftest.4f
12840 
\end_layout
12841 
 
12842 
\end_inset
12843
12844
12845 
\begin_inset Text
12846 
 
12847 
\begin_layout Plain Layout
12848 
 
12849 
\family roman
12850 
\series medium
12851 
\shape up
12852 
\size normal
12853 
\emph off
12854 
\bar no
12855 
\noun off
12856 
\color none
12857 
MP@ML
12858 
\end_layout
12859 
 
12860 
\end_inset
12861
12862
12863 
\begin_inset Text
12864 
 
12865 
\begin_layout Plain Layout
12866 
 
12867 
\end_layout
12868 
 
12869 
\end_inset
12870
12871
12872
12873
12874 
\begin_inset Text
12875 
 
12876 
\begin_layout Plain Layout
12877 
 
12878 
\family typewriter
12879 
mei/mei.2conftest.60f.new
12880 
\end_layout
12881 
 
12882 
\end_inset
12883
12884
12885 
\begin_inset Text
12886 
 
12887 
\begin_layout Plain Layout
12888 
 
12889 
\family roman
12890 
\series medium
12891 
\shape up
12892 
\size normal
12893 
\emph off
12894 
\bar no
12895 
\noun off
12896 
\color none
12897 
MP@ML
12898 
\end_layout
12899 
 
12900 
\end_inset
12901
12902
12903 
\begin_inset Text
12904 
 
12905 
\begin_layout Plain Layout
12906 
 
12907 
\end_layout
12908 
 
12909 
\end_inset
12910
12911
12912
12913
12914 
\begin_inset Text
12915 
 
12916 
\begin_layout Plain Layout
12917 
 
12918 
\family typewriter
12919 
tek/Tek-5.2
12920 
\end_layout
12921 
 
12922 
\end_inset
12923
12924
12925 
\begin_inset Text
12926 
 
12927 
\begin_layout Plain Layout
12928 
 
12929 
\family roman
12930 
\series medium
12931 
\shape up
12932 
\size normal
12933 
\emph off
12934 
\bar no
12935 
\noun off
12936 
\color none
12937 
MP@ML
12938 
\end_layout
12939 
 
12940 
\end_inset
12941
12942
12943 
\begin_inset Text
12944 
 
12945 
\begin_layout Plain Layout
12946 
 
12947 
\end_layout
12948 
 
12949 
\end_inset
12950
12951
12952
12953
12954 
\begin_inset Text
12955 
 
12956 
\begin_layout Plain Layout
12957 
 
12958 
\family typewriter
12959 
tek/Tek-5-long
12960 
\end_layout
12961 
 
12962 
\end_inset
12963
12964
12965 
\begin_inset Text
12966 
 
12967 
\begin_layout Plain Layout
12968 
 
12969 
\family roman
12970 
\series medium
12971 
\shape up
12972 
\size normal
12973 
\emph off
12974 
\bar no
12975 
\noun off
12976 
\color none
12977 
MP@ML
12978 
\end_layout
12979 
 
12980 
\end_inset
12981
12982
12983 
\begin_inset Text
12984 
 
12985 
\begin_layout Plain Layout
12986 
 
12987 
\end_layout
12988 
 
12989 
\end_inset
12990
12991
12992
12993
12994 
\begin_inset Text
12995 
 
12996 
\begin_layout Plain Layout
12997 
 
12998 
\family typewriter
12999 
tcela/tcela-6-slices
13000 
\end_layout
13001 
 
13002 
\end_inset
13003
13004
13005 
\begin_inset Text
13006 
 
13007 
\begin_layout Plain Layout
13008 
 
13009 
\family roman
13010 
\series medium
13011 
\shape up
13012 
\size normal
13013 
\emph off
13014 
\bar no
13015 
\noun off
13016 
\color none
13017 
MP@ML
13018 
\end_layout
13019 
 
13020 
\end_inset
13021
13022
13023 
\begin_inset Text
13024 
 
13025 
\begin_layout Plain Layout
13026 
 
13027 
\end_layout
13028 
 
13029 
\end_inset
13030
13031
13032
13033
13034 
\begin_inset Text
13035 
 
13036 
\begin_layout Plain Layout
13037 
 
13038 
\family typewriter
13039 
tcela/tcela-7-slices
13040 
\end_layout
13041 
 
13042 
\end_inset
13043
13044
13045 
\begin_inset Text
13046 
 
13047 
\begin_layout Plain Layout
13048 
 
13049 
\family roman
13050 
\series medium
13051 
\shape up
13052 
\size normal
13053 
\emph off
13054 
\bar no
13055 
\noun off
13056 
\color none
13057 
MP@ML
13058 
\end_layout
13059 
 
13060 
\end_inset
13061
13062
13063 
\begin_inset Text
13064 
 
13065 
\begin_layout Plain Layout
13066 
 
13067 
\end_layout
13068 
 
13069 
\end_inset
13070
13071
13072
13073
13074 
\begin_inset Text
13075 
 
13076 
\begin_layout Plain Layout
13077 
 
13078 
\family typewriter
13079 
sony/sony-ct1
13080 
\end_layout
13081 
 
13082 
\end_inset
13083
13084
13085 
\begin_inset Text
13086 
 
13087 
\begin_layout Plain Layout
13088 
 
13089 
\family roman
13090 
\series medium
13091 
\shape up
13092 
\size normal
13093 
\emph off
13094 
\bar no
13095 
\noun off
13096 
\color none
13097 
MP@ML
13098 
\end_layout
13099 
 
13100 
\end_inset
13101
13102
13103 
\begin_inset Text
13104 
 
13105 
\begin_layout Plain Layout
13106 
 
13107 
\end_layout
13108 
 
13109 
\end_inset
13110
13111
13112
13113
13114 
\begin_inset Text
13115 
 
13116 
\begin_layout Plain Layout
13117 
 
13118 
\family typewriter
13119 
sony/sony-ct2
13120 
\end_layout
13121 
 
13122 
\end_inset
13123
13124
13125 
\begin_inset Text
13126 
 
13127 
\begin_layout Plain Layout
13128 
 
13129 
\family roman
13130 
\series medium
13131 
\shape up
13132 
\size normal
13133 
\emph off
13134 
\bar no
13135 
\noun off
13136 
\color none
13137 
MP@ML
13138 
\end_layout
13139 
 
13140 
\end_inset
13141
13142
13143 
\begin_inset Text
13144 
 
13145 
\begin_layout Plain Layout
13146 
 
13147 
\end_layout
13148 
 
13149 
\end_inset
13150
13151
13152
13153
13154 
\begin_inset Text
13155 
 
13156 
\begin_layout Plain Layout
13157 
 
13158 
\family typewriter
13159 
sony/sony-ct3
13160 
\end_layout
13161 
 
13162 
\end_inset
13163
13164
13165 
\begin_inset Text
13166 
 
13167 
\begin_layout Plain Layout
13168 
 
13169 
\family roman
13170 
\series medium
13171 
\shape up
13172 
\size normal
13173 
\emph off
13174 
\bar no
13175 
\noun off
13176 
\color none
13177 
MP@ML
13178 
\end_layout
13179 
 
13180 
\end_inset
13181
13182
13183 
\begin_inset Text
13184 
 
13185 
\begin_layout Plain Layout
13186 
 
13187 
\end_layout
13188 
 
13189 
\end_inset
13190
13191
13192
13193
13194 
\begin_inset Text
13195 
 
13196 
\begin_layout Plain Layout
13197 
 
13198 
\family typewriter
13199 
sony/sony-ct4
13200 
\end_layout
13201 
 
13202 
\end_inset
13203
13204
13205 
\begin_inset Text
13206 
 
13207 
\begin_layout Plain Layout
13208 
 
13209 
\family roman
13210 
\series medium
13211 
\shape up
13212 
\size normal
13213 
\emph off
13214 
\bar no
13215 
\noun off
13216 
\color none
13217 
MP@ML
13218 
\end_layout
13219 
 
13220 
\end_inset
13221
13222
13223 
\begin_inset Text
13224 
 
13225 
\begin_layout Plain Layout
13226 
 
13227 
\end_layout
13228 
 
13229 
\end_inset
13230
13231
13232
13233
13234 
\begin_inset Text
13235 
 
13236 
\begin_layout Plain Layout
13237 
 
13238 
\family typewriter
13239 
att/att_mismatch
13240 
\end_layout
13241 
 
13242 
\end_inset
13243
13244
13245 
\begin_inset Text
13246 
 
13247 
\begin_layout Plain Layout
13248 
 
13249 
\family roman
13250 
\series medium
13251 
\shape up
13252 
\size normal
13253 
\emph off
13254 
\bar no
13255 
\noun off
13256 
\color none
13257 
MP@ML
13258 
\end_layout
13259 
 
13260 
\end_inset
13261
13262
13263 
\begin_inset Text
13264 
 
13265 
\begin_layout Plain Layout
13266 
 
13267 
\end_layout
13268 
 
13269 
\end_inset
13270
13271
13272
13273
13274 
\begin_inset Text
13275 
 
13276 
\begin_layout Plain Layout
13277 
 
13278 
\family typewriter
13279 
teracom/teracom_vlc4
13280 
\end_layout
13281 
 
13282 
\end_inset
13283
13284
13285 
\begin_inset Text
13286 
 
13287 
\begin_layout Plain Layout
13288 
 
13289 
\family roman
13290 
\series medium
13291 
\shape up
13292 
\size normal
13293 
\emph off
13294 
\bar no
13295 
\noun off
13296 
\color none
13297 
MP@ML
13298 
\end_layout
13299 
 
13300 
\end_inset
13301
13302
13303 
\begin_inset Text
13304 
 
13305 
\begin_layout Plain Layout
13306 
 
13307 
\end_layout
13308 
 
13309 
\end_inset
13310
13311
13312
13313
13314 
\begin_inset Text
13315 
 
13316 
\begin_layout Plain Layout
13317 
 
13318 
\family typewriter
13319 
ccett/mcp10ccett
13320 
\end_layout
13321 
 
13322 
\end_inset
13323
13324
13325 
\begin_inset Text
13326 
 
13327 
\begin_layout Plain Layout
13328 
 
13329 
\family roman
13330 
\series medium
13331 
\shape up
13332 
\size normal
13333 
\emph off
13334 
\bar no
13335 
\noun off
13336 
\color none
13337 
MP@ML
13338 
\end_layout
13339 
 
13340 
\end_inset
13341
13342
13343 
\begin_inset Text
13344 
 
13345 
\begin_layout Plain Layout
13346 
 
13347 
\end_layout
13348 
 
13349 
\end_inset
13350
13351
13352
13353
13354 
\begin_inset Text
13355 
 
13356 
\begin_layout Plain Layout
13357 
 
13358 
\family typewriter
13359 
lep/bits_conf_lep_11
13360 
\end_layout
13361 
 
13362 
\end_inset
13363
13364
13365 
\begin_inset Text
13366 
 
13367 
\begin_layout Plain Layout
13368 
 
13369 
\family roman
13370 
\series medium
13371 
\shape up
13372 
\size normal
13373 
\emph off
13374 
\bar no
13375 
\noun off
13376 
\color none
13377 
MP@ML
13378 
\end_layout
13379 
 
13380 
\end_inset
13381
13382
13383 
\begin_inset Text
13384 
 
13385 
\begin_layout Plain Layout
13386 
 
13387 
\end_layout
13388 
 
13389 
\end_inset
13390
13391
13392
13393
13394 
\begin_inset Text
13395 
 
13396 
\begin_layout Plain Layout
13397 
 
13398 
\family typewriter
13399 
hhi/hhi_burst_short
13400 
\end_layout
13401 
 
13402 
\end_inset
13403
13404
13405 
\begin_inset Text
13406 
 
13407 
\begin_layout Plain Layout
13408 
 
13409 
\family roman
13410 
\series medium
13411 
\shape up
13412 
\size normal
13413 
\emph off
13414 
\bar no
13415 
\noun off
13416 
\color none
13417 
MP@ML
13418 
\end_layout
13419 
 
13420 
\end_inset
13421
13422
13423 
\begin_inset Text
13424 
 
13425 
\begin_layout Plain Layout
13426 
 
13427 
\end_layout
13428 
 
13429 
\end_inset
13430
13431
13432
13433
13434 
\begin_inset Text
13435 
 
13436 
\begin_layout Plain Layout
13437 
 
13438 
\family typewriter
13439 
hhi/hhi_burst_long
13440 
\end_layout
13441 
 
13442 
\end_inset
13443
13444
13445 
\begin_inset Text
13446 
 
13447 
\begin_layout Plain Layout
13448 
 
13449 
\family roman
13450 
\series medium
13451 
\shape up
13452 
\size normal
13453 
\emph off
13454 
\bar no
13455 
\noun off
13456 
\color none
13457 
MP@ML
13458 
\end_layout
13459 
 
13460 
\end_inset
13461
13462
13463 
\begin_inset Text
13464 
 
13465 
\begin_layout Plain Layout
13466 
 
13467 
\end_layout
13468 
 
13469 
\end_inset
13470
13471
13472
13473
13474 
\begin_inset Text
13475 
 
13476 
\begin_layout Plain Layout
13477 
 
13478 
\family typewriter
13479 
tcela/tcela-10-killer
13480 
\end_layout
13481 
 
13482 
\end_inset
13483
13484
13485 
\begin_inset Text
13486 
 
13487 
\begin_layout Plain Layout
13488 
 
13489 
\family roman
13490 
\series medium
13491 
\shape up
13492 
\size normal
13493 
\emph off
13494 
\bar no
13495 
\noun off
13496 
\color none
13497 
MP@ML
13498 
\end_layout
13499 
 
13500 
\end_inset
13501
13502
13503 
\begin_inset Text
13504 
 
13505 
\begin_layout Plain Layout
13506 
 
13507 
\end_layout
13508 
 
13509 
\end_inset
13510
13511
13512
13513 
 
13514 
\end_inset
13515 
 
13516 
 
13517 
\end_layout
13518 
 
13519 
\begin_layout Plain Layout
13520 
\begin_inset Caption Standard
13521 
 
13522 
\begin_layout Plain Layout
13523 
\begin_inset CommandInset label
13524 
LatexCommand label
13525 
name "tab:Conformance-Test-Suite"
13526 
 
13527 
\end_inset
13528 
 
13529 
Conformance Test Suite
13530 
\end_layout
13531 
 
13532 
\end_inset
13533 
 
13534 
 
13535 
\end_layout
13536 
 
13537 
\end_inset
13538 
 
13539 
 
13540 
\end_layout
13541 
 
13542 
\begin_layout Section
13543 
\begin_inset CommandInset label
13544 
LatexCommand label
13545 
name "sec:Tools"
13546 
 
13547 
\end_inset
13548 
 
13549 
Tools
13550 
\end_layout
13551 
 
13552 
\begin_layout Standard
13553 
The
13554 
\family typewriter
13555 
tools
13556 
\family default
13557 
 directory contains various utilities and tools used during decoder development
13558 
 and test.
13559 
\end_layout
13560 
 
13561 
\begin_layout Subsection
13562 
\begin_inset CommandInset label
13563 
LatexCommand label
13564 
name "subsec:Logicport-Logic-Analyzer"
13565 
 
13566 
\end_inset
13567 
 
13568 
Logic Analyzer
13569 
\end_layout
13570 
 
13571 
\begin_layout Standard
13572 
On the Xilinx ML505, the MPEG2 decoder testpoint has been broken out to
13573 
 the Xilinx Generic Interface (XGI) .
13574 
 The test point selection can be done using the GPIO DIP switches.
13575 
 If the ML505 is held so the LCD can be read, the GPIO DIP switches are
13576 
 at the bottom right of the board.
13577 
 GPIO DIP switches are numbered 1 to 8, from left to right.
13578 
\end_layout
13579 
 
13580 
\begin_layout Standard
13581 
If GPIO DIP switch 3 is off, test point selection is made by writing to
13582 
 register 15 decimal, REG_WR_TESTPOINT.
13583 
 If GPIO DIP switch 3 is on, test point selection is made by dip switches
13584 
 5 to 8.
13585 
 GPIO DIP switch 5 is MSB, GPIO DIP switch 8 is LSB.
13586 
\end_layout
13587 
 
13588 
\begin_layout Standard
13589 
Verify the probing has been enabled in
13590 
\family typewriter
13591 
probe.v
13592 
\family default
13593 
.
13594 
 Note that, as one adds test points, routing and timing closure becomes
13595 
 more and more difficult.
13596 
 Only define those test points you need.
13597 
\end_layout
13598 
 
13599 
\begin_layout Standard
13600 
The Intronix Logicport is a small USB-based logic analyzer.
13601 
 It has 34 channels, two of which can be used as clock inputs, and does
13602 
 state analysis at up to 200 MHz.
13603 
 The MPEG2 decoder on the ML505 runs at 75 MHz, with a typical dot clock
13604 
 of 27 MHz, well within the capabilities of the Logicport logic analyzer.
13605 
 Probing the memory controller at 200 MHz, however, is borderline.
13606 
 To be on the safe side, when probing the memory controller with the Logicport,
13607 
 lower memory clock to 125 MHz .
13608 
\end_layout
13609 
 
13610 
\begin_layout Standard
13611 
A small two-layer adapter board has been designed to connect the Intronix
13612 
 Logicport to the Xilinx ML505.
13613 
 Board layout can be downloaded from
13614 
\begin_inset Flex URL
13615 
status collapsed
13616 
 
13617 
\begin_layout Plain Layout
13618 
 
13619 
http://www.kdvelectronics.eu/probe_adapter/probe_adapter.html
13620 
\end_layout
13621 
 
13622 
\end_inset
13623 
 
13624 
.
13625 
\end_layout
13626 
 
13627 
\begin_layout Standard
13628 
The
13629 
\family typewriter
13630 
tools/logicport
13631 
\family default
13632 
 directory contains Logicport configuration files for the test points defined
13633 
 in
13634 
\family typewriter
13635 
probe.v
13636 
\family default
13637 
.
13638 
 Note configuration files can be read and waveforms displayed by Logicport
13639 
 software even if no analyzer is present.
13640 
\end_layout
13641 
 
13642 
\begin_layout Subsection
13643 
\begin_inset CommandInset label
13644 
LatexCommand label
13645 
name "subsec:FSM-Graphs"
13646 
 
13647 
\end_inset
13648 
 
13649 
Finite State Machine Graphs
13650 
\end_layout
13651 
 
13652 
\begin_layout Standard
13653 
The MPEG2 decoder uses Finite State Machines throughout; no embedded processors
13654 
 or microcontrollers are used.
13655 
 Verifying the correctness of the Finite State Machines is important.
13656 
 Finite state machine transition graphs are created from Verilog source
13657 
 files as a means of visually inspecting and verifying source correctness.
13658 
 The
13659 
\family typewriter
13660 
mkfsmgraph
13661 
\family default
13662 
 Perl script in
13663 
\family typewriter
13664 
tools/fsmgraph
13665 
\family default
13666 
 assumes the comment
13667 
\family typewriter
13668 
/* next state logic */
13669 
\family default
13670 
 marks the beginning of a
13671 
\family typewriter
13672 
case
13673 
\family default
13674 
 statement in an
13675 
\family typewriter
13676 
always
13677 
\family default
13678 
 block, used to select the next state, and that all states begin with STATE_
13679 
 :
13680 
\end_layout
13681 
 
13682 
\begin_layout LyX-Code
13683 
/* next state logic */
13684 
\end_layout
13685 
 
13686 
\begin_layout LyX-Code
13687 
always @*
13688 
\end_layout
13689 
 
13690 
\begin_layout LyX-Code
13691 
  case (state)
13692 
\end_layout
13693 
 
13694 
\begin_layout LyX-Code
13695 
    STATE_INIT: if (first_pixel_read) next = STATE_WAIT;
13696 
\end_layout
13697 
 
13698 
\begin_layout LyX-Code
13699 
                else next = STATE_INIT;
13700 
\end_layout
13701 
 
13702 
\begin_layout LyX-Code
13703 
    ...
13704 
 
13705 
\end_layout
13706 
 
13707 
\begin_layout LyX-Code
13708 
    default next = STATE_INIT
13709 
\end_layout
13710 
 
13711 
\begin_layout LyX-Code
13712 
  endcase
13713 
\end_layout
13714 
 
13715 
\begin_layout LyX-Code
13716 
/* state */
13717 
\end_layout
13718 
 
13719 
\begin_layout LyX-Code
13720 
always @(posedge clk)
13721 
\end_layout
13722 
 
13723 
\begin_layout LyX-Code
13724 
  if(~rst) state <= STATE_INIT;
13725 
\end_layout
13726 
 
13727 
\begin_layout LyX-Code
13728 
  else state <= next;
13729 
\end_layout
13730 
 
13731 
\begin_layout Standard
13732 
The
13733 
\family typewriter
13734 
mkfsmgraph
13735 
\family default
13736 
 tool parses the Verilog source files using the following algorithm:
13737 
\end_layout
13738 
 
13739 
\begin_layout Itemize
13740 
read the Verilog file until the comment
13741 
\family typewriter
13742 
/* next state logic */
13743 
\family default
13744 
 is found
13745 
\end_layout
13746 
 
13747 
\begin_layout Itemize
13748 
take the first
13749 
\family typewriter
13750 
always
13751 
\family default
13752 
 block after the
13753 
\family typewriter
13754 
/* next state logic */
13755 
\family default
13756 
 comment
13757 
\end_layout
13758 
 
13759 
\begin_layout Itemize
13760 
any word beginning with
13761 
\family typewriter
13762 
STATE_
13763 
\family default
13764 
 is assumed to represent a FSM state.
13765 
\end_layout
13766 
 
13767 
\begin_layout Itemize
13768 
if the character following the FSM state is a colon (:) the state is a graph
13769 
 node.
13770 
\end_layout
13771 
 
13772 
\begin_layout Itemize
13773 
if the character following the FSM state is a semicolon (;) the state is
13774 
 the end point of a state transition.
13775 
\end_layout
13776 
 
13777 
\begin_layout Itemize
13778 
if the character following the FSM state is neither a colon (:) nor a semicolon
13779 
 (;) the state is not added to the graph.
13780 
\end_layout
13781 
 
13782 
\begin_layout Standard
13783 
The resulting graph is written to standard output in gml format.
13784 
 Graph layout software uDrawGraph from the University of Bremen, Germany,
13785 
 is then used to produce a visually appealing graph.
13786 
 
13787 
\end_layout
13788 
 
13789 
\begin_layout Standard
13790 
No attempt has been made to write a script capable of parsing arbitrary
13791 
 Verilog sources.
13792 
 The Verilog sources have been written so the script can parse them.
13793 
\end_layout
13794 
 
13795 
\begin_layout Standard
13796 
The graph of the variable length-decoding FSM
13797 
\family typewriter
13798 
vld.v
13799 
\family default
13800 
 has been simplified further by removing all transitions to STATE_NEXT_START_COD
13801 
E and STATE_ERROR.
13802 
 Nodes which transition to STATE_NEXT_START_CODE are drawn with double border.
13803 
 Removing transitions to STATE_NEXT_START_CODE and STATE_ERROR produces
13804 
 a graph with much less visual clutter.
13805 
 A large format version of the FMS graph of
13806 
\family typewriter
13807 
vld.v
13808 
\family default
13809 
  can be found in
13810 
\family typewriter
13811 
doc/vld-poster.pdf
13812 
\family default
13813 
.
13814 
 It is suggested to become familiar with the graph before significantly
13815 
 modifying
13816 
\family typewriter
13817 
vld.v
13818 
\family default
13819 
.
13820 
 
13821 
\end_layout
13822 
 
13823 
\begin_layout Subsection
13824 
\begin_inset CommandInset label
13825 
LatexCommand label
13826 
name "subsec:IEEE-1180-IDCT"
13827 
 
13828 
\end_inset
13829 
 
13830 
IEEE-1180 IDCT Accuracy Test
13831 
\end_layout
13832 
 
13833 
\begin_layout Standard
13834 
 
13835 
\family typewriter
13836 
idct.v
13837 
\family default
13838 
 has been tested to comply with the former IEEE-1180, the actual ISO/IEC
13839 
 23002-1
13840 
\begin_inset CommandInset citation
13841 
LatexCommand cite
13842 
key "key-5"
13843 
 
13844 
\end_inset
13845 
 
13846 
.
13847 
 The testbench can be found in the
13848 
\family typewriter
13849 
tools/ieee1180
13850 
\family default
13851 
 directory.
13852 
 Test results can be found in the file
13853 
\family typewriter
13854 
ieee-1180-results
13855 
\family default
13856 
.
13857 
 Test results indicate the idct implementation is IEEE-1180 compliant.
13858 
\end_layout
13859 
 
13860 
\begin_layout Subsection
13861 
\begin_inset CommandInset label
13862 
LatexCommand label
13863 
name "subsec:mpeg2decode"
13864 
 
13865 
\end_inset
13866 
 
13867 
Reference software decoder
13868 
\end_layout
13869 
 
13870 
\begin_layout Standard
13871 
The directory
13872 
\family typewriter
13873 
tools/mpeg2dec
13874 
\family default
13875 
 contains the MPEG2 reference decoder, modified to provide extensive logging
13876 
 and to regularly write the framebuffers to file.
13877 
 A sample run could be:
13878 
\end_layout
13879 
 
13880 
\begin_layout LyX-Code
13881 
koen@macpro ~/xilinx/mpeg2/tools $ mkdir run
13882 
\end_layout
13883 
 
13884 
\begin_layout LyX-Code
13885 
koen@macpro ~/xilinx/mpeg2/tools $ cd run
13886 
\end_layout
13887 
 
13888 
\begin_layout LyX-Code
13889 
koen@macpro ~/xilinx/mpeg2/tools/run $ ../mpeg2dec/mpeg2decode
13890 
\begin_inset Newline newline
13891 
\end_inset
13892 
 
13893 
 -r -v9 -t -o0 'dump_%d_out_%c' -b ../streams/tcela-17.mpg > log
13894 
\end_layout
13895 
 
13896 
\begin_layout LyX-Code
13897 
saving dump_0_out_f.y.ppm
13898 
\end_layout
13899 
 
13900 
\begin_layout LyX-Code
13901 
saving dump_0_out_f.u.ppm
13902 
\end_layout
13903 
 
13904 
\begin_layout LyX-Code
13905 
saving dump_0_out_f.v.ppm
13906 
\end_layout
13907 
 
13908 
\begin_layout LyX-Code
13909 
saving dump_0_forward_ref_frm.y.ppm
13910 
\end_layout
13911 
 
13912 
\begin_layout LyX-Code
13913 
saving dump_0_forward_ref_frm.u.ppm
13914 
\end_layout
13915 
 
13916 
\begin_layout LyX-Code
13917 
saving dump_0_forward_ref_frm.v.ppm
13918 
\end_layout
13919 
 
13920 
\begin_layout LyX-Code
13921 
saving dump_0_backward_ref_frm.y.ppm
13922 
\end_layout
13923 
 
13924 
\begin_layout LyX-Code
13925 
saving dump_0_backward_ref_frm.u.ppm
13926 
\end_layout
13927 
 
13928 
\begin_layout LyX-Code
13929 
saving dump_0_backward_ref_frm.v.ppm
13930 
\end_layout
13931 
 
13932 
\begin_layout LyX-Code
13933 
saving dump_0_auxframe.y.ppm
13934 
\end_layout
13935 
 
13936 
\begin_layout LyX-Code
13937 
saving dump_0_auxframe.u.ppm
13938 
\end_layout
13939 
 
13940 
\begin_layout LyX-Code
13941 
saving dump_0_auxframe.v.ppm
13942 
\end_layout
13943 
 
13944 
\begin_layout LyX-Code
13945 
saving dump_1_out_f.y.ppm
13946 
\end_layout
13947 
 
13948 
\begin_layout LyX-Code
13949 
saving dump_1_out_f.u.ppm
13950 
\end_layout
13951 
 
13952 
\begin_layout LyX-Code
13953 
...
13954 
 
13955 
\end_layout
13956 
 
13957 
\begin_layout Standard
13958 
The
13959 
\family typewriter
13960 
log
13961 
\family default
13962 
 file contains detailed information about the execution of the MPEG2 decoding
13963 
 algorithm, while the
13964 
\family typewriter
13965 
.ppm
13966 
\family default
13967 
 files contain framestore dumps, using separate graphics files for each
13968 
 y, u and v component.
13969 
 
13970 
\end_layout
13971 
 
13972 
\begin_layout Subsection
13973 
\begin_inset CommandInset label
13974 
LatexCommand label
13975 
name "subsec:MPEG2-Test-Streams"
13976 
 
13977 
\end_inset
13978 
 
13979 
MPEG2 Test Streams
13980 
\end_layout
13981 
 
13982 
\begin_layout Standard
13983 
The
13984 
\family typewriter
13985 
tools/streams
13986 
\family default
13987 
 directory contains some sample MPEG2 program streams, useful during testing.
13988 
 The
13989 
\family typewriter
13990 
retrieve
13991 
\family default
13992 
 script in the
13993 
\family typewriter
13994 
tools/streams
13995 
\family default
13996 
 directory can be used to download the ISO/IEC 13818-4 conformance test
13997 
 bitstreams from the ISO web site
13998 
\begin_inset Foot
13999 
status open
14000 
 
14001 
\begin_layout Plain Layout
14002 
ISO/IEC 13818-4 test bitstreams,
14003 
\begin_inset Flex URL
14004 
status collapsed
14005 
 
14006 
\begin_layout Plain Layout
14007 
 
14008 
http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_IEC_13818-4_2004_Conf
14009 
ormance_Testing/Video/bitstreams/main-profile/
14010 
\end_layout
14011 
 
14012 
\end_inset
14013 
 
14014 
 
14015 
\end_layout
14016 
 
14017 
\end_inset
14018 
 
14019 
.
14020 
\end_layout
14021 
 
14022 
\begin_layout Bibliography
14023 
\begin_inset CommandInset bibitem
14024 
LatexCommand bibitem
14025 
label "1"
14026 
key "key-1"
14027 
 
14028 
\end_inset
14029 
 
14030 
ITU-T Recommendation H.262
14031 
\begin_inset Quotes eld
14032 
\end_inset
14033 
 
14034 
Information technology - Generic coding of moving pictures and associated
14035 
 audio information: Video
14036 
\begin_inset Quotes erd
14037 
\end_inset
14038 
 
14039 
, 2000.
14040 
 Also published as ISO/IEC International Standard 13818-2.
14041 
\end_layout
14042 
 
14043 
\begin_layout Bibliography
14044 
\begin_inset CommandInset bibitem
14045 
LatexCommand bibitem
14046 
label "2"
14047 
key "key-5"
14048 
 
14049 
\end_inset
14050 
 
14051 
ISO/IEC International Standard 23002-1
14052 
\begin_inset Quotes eld
14053 
\end_inset
14054 
 
14055 
Information technology - MPEG video technologies - Part 1: Accuracy requirements
14056 
 for implementation of integer-output 8x8 inverse discrete cosine transform
14057 
\begin_inset Quotes erd
14058 
\end_inset
14059 
 
14060 
, 2006.
14061 
\end_layout
14062 
 
14063 
\begin_layout Bibliography
14064 
\begin_inset CommandInset bibitem
14065 
LatexCommand bibitem
14066 
label "3"
14067 
key "key-2"
14068 
 
14069 
\end_inset
14070 
 
14071 
 
14072 
\begin_inset Quotes eld
14073 
\end_inset
14074 
 
14075 
Architecture and Bus-Arbitration Schemes for MPEG-2 Video Decoder", Jui-Hua
14076 
 Li and Nam Ling, IEEE Transactions on Circuits and Systems for Video Technology
14077 
, Vol.
14078 
 9, No.
14079 
 5, August 1999, p.727-736.
14080 
\end_layout
14081 
 
14082 
\begin_layout Bibliography
14083 
\begin_inset CommandInset bibitem
14084 
LatexCommand bibitem
14085 
label "4"
14086 
key "key-3"
14087 
 
14088 
\end_inset
14089 
 
14090 
 
14091 
\begin_inset Quotes eld
14092 
\end_inset
14093 
 
14094 
Systematic approach of Fixed Point 8x8 IDCT and DCT Design and Implementation",
14095 
 Ci-Xun Zhang , Jing Wang , Lu Yu, Institute of Information and Communication
14096 
 Engineering, Zhejiang University, Hangzhou, China, 310027.
14097 
\end_layout
14098 
 
14099 
\begin_layout Bibliography
14100 
\begin_inset CommandInset bibitem
14101 
LatexCommand bibitem
14102 
label "5"
14103 
key "key-4"
14104 
 
14105 
\end_inset
14106 
 
14107 
 
14108 
\begin_inset Quotes eld
14109 
\end_inset
14110 
 
14111 
Virtex-5 FPGA User Guide
14112 
\begin_inset Quotes erd
14113 
\end_inset
14114 
 
14115 
, Xilinx UG190 (v3.2), December 11, 2007.
14116 
\end_layout
14117 
 
14118 
\begin_layout Bibliography
14119 
\begin_inset CommandInset bibitem
14120 
LatexCommand bibitem
14121 
label "6"
14122 
key "key-7"
14123 
 
14124 
\end_inset
14125 
 
14126 
 
14127 
\begin_inset Quotes eld
14128 
\end_inset
14129 
 
14130 
ML505/506 MIG Design Creation Using ISE 9.2i SP3, MIG 2.0 and ChipScope Pro
14131 
 9.2i
14132 
\begin_inset Quotes erd
14133 
\end_inset
14134 
 
14135 
, Xilinx, December 2007.
14136 
\end_layout
14137 
 
14138 
\end_body
14139 
\end_document

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