http://elinux.org/index.php?title=BSDL&feed=atom&action=history 2013-05-24T18:22:28Z Revision history for this page on the wiki MediaWiki 1.22alpha http://elinux.org/index.php?title=BSDL&diff=46357&oldid=prev 2011-05-05T19:26:48Z

<p>Add Category Development Tools</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 19:26, 5 May 2011</td> </tr><tr><td colspan="2" class="diff-lineno">Line 14:</td> <td colspan="2" class="diff-lineno">Line 14:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* Register Access Description: Which register is placed between TDI and TDO for each JTAG instruction.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* Register Access Description: Which register is placed between TDI and TDO for each JTAG instruction.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* Boundary Register Description: List of the boundary scan cells and their functionality.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>* Boundary Register Description: List of the boundary scan cells and their functionality.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Development Tools]]</ins></div></td></tr> </table>

Jsujjava http://elinux.org/index.php?title=BSDL&diff=1903&oldid=prev 2007-03-01T03:35:00Z

<p>Legacy Content Conversion</p> <p><b>New page</b></p><div>Boundary Scan Description Language (BSDL) is a subset of VHDL that is used to describe how [[JTAG]] (IEEE 1149.1) is implemented in a particular device. For a device to be [[JTAG]] compliant, it must have an associated BSDL file. These files are often available for download from manufacturers' websites.<br /> <br /> [[JTAG]] systems use the information contained in a BSDL file to work out how to access a device in the [[JTAG]] chain.<br /> <br /> BSDL files contain the following elements:<br /> <br /> * Entity Description: Statements naming the device or a section of its functionality.<br /> * Generic Parameter: A value such as a package type. The value may come from outside the current entity.<br /> * Port Description: Describes the nature of the pins on the device (input, output, bidirectional, linkage).<br /> * Use Statements: References external definitions (such as IEEE 1149.1).<br /> * Pin Mapping(s): Maps logical signals in the device to physical pins.<br /> * Scan Port Identification: Defines the pins used on the device to access the JTAG capabilities (TDI, TDO, etc - the Test Access Port).<br /> * Instruction Register Description: The signals used for accessing JTAG device modes.<br /> * Register Access Description: Which register is placed between TDI and TDO for each JTAG instruction.<br /> * Boundary Register Description: List of the boundary scan cells and their functionality.</div>

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