https://parisc.wiki.kernel.org/index.php?title=GSC&feed=atom&action=historyGSC - Revision history2024-03-29T08:16:33ZRevision history for this page on the wikiMediaWiki 1.19.24https://parisc.wiki.kernel.org/index.php?title=GSC&diff=5771&oldid=prevThibaut Varene: formatting update2014-05-30T21:01:50Z<p>formatting update</p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 21:01, 30 May 2014</td>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">= GSC =</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>GSC, the '''General''' (or Gonzo) '''System Connect''' is the primary I/O bus of the early HP workstations. On PA7100LC</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>GSC, the '''General''' (or Gonzo) '''System Connect''' is the primary I/O bus of the early HP workstations. On PA7100LC</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>and PA7300LC systems, the processor also sometimes sits on the GSC bus. The bus is 32-bits wide and comes in several flavours. GSC cards are available in many different form factors to fit in various different chassis sizes.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>and PA7300LC systems, the processor also sometimes sits on the GSC bus. The bus is 32-bits wide and comes in several flavours. GSC cards are available in many different form factors to fit in various different chassis sizes.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* GSC-1x: The original GSC bus implemented on PCX-L and used in the Gecko, Mirage and Electra computers. Peak Bandwidth 142MB/s w/DMA, 106 MB/s with PIO writes.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* GSC-1x: The original GSC bus implemented on PCX-L and used in the Gecko, Mirage and Electra computers. Peak Bandwidth 142MB/s w/DMA, 106 MB/s with PIO writes.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* GSC+: Enhancements added for <del class="diffchange diffchange-inline">Kitty``Hawk</del>/<del class="diffchange diffchange-inline">Sky``Hawk </del>(U2 chip) that allow for pending transactions. GSC+ enhancements are orthogonal to the GSC-1.5X and GSC-2X enhancements. Aka "Extended GSC" or "EGSC".</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* GSC+: Enhancements added for <ins class="diffchange diffchange-inline">KittyHawk</ins>/<ins class="diffchange diffchange-inline">SkyHawk </ins>(U2 chip) that allow for pending transactions. GSC+ enhancements are orthogonal to the GSC-1.5X and GSC-2X enhancements. Aka "Extended GSC" or "EGSC".</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* GSC-1.5x: GSC-1X with an additional variable length write transaction.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* GSC-1.5x: GSC-1X with an additional variable length write transaction.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* GSC-2x: GSC-1.5X with a protocol enhancement to allow data to be sent at double the GCLK rate (Peak bandwidth = 256 MB/s.)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* GSC-2x: GSC-1.5X with a protocol enhancement to allow data to be sent at double the GCLK rate (Peak bandwidth = 256 MB/s.)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= Misc Notes =</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>= Misc Notes =</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline"> </del>* All versions of the K-Class systems operate the GSC bus at the same speed. The core I/O slots all run at 32MHz. The other slots connected to the Harrier board all run at 40MHz.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* All versions of the K-Class systems operate the GSC bus at the same speed. The core I/O slots all run at 32MHz. The other slots connected to the Harrier board all run at 40MHz.</div></td></tr>
</table>Thibaut Varenehttps://parisc.wiki.kernel.org/index.php?title=GSC&diff=3231&oldid=prevDeller: Created page with "= GSC = GSC, the '''General''' (or Gonzo) '''System Connect''' is the primary I/O bus of the early HP workstations. On PA7100LC and PA7300LC systems, the processor also somet..."2014-02-05T13:38:13Z<p>Created page with "= GSC = GSC, the '''General''' (or Gonzo) '''System Connect''' is the primary I/O bus of the early HP workstations. On PA7100LC and PA7300LC systems, the processor also somet..."</p>
<p><b>New page</b></p><div>= GSC =<br />
<br />
GSC, the '''General''' (or Gonzo) '''System Connect''' is the primary I/O bus of the early HP workstations. On PA7100LC<br />
and PA7300LC systems, the processor also sometimes sits on the GSC bus. The bus is 32-bits wide and comes in several flavours. GSC cards are available in many different form factors to fit in various different chassis sizes.<br />
<br />
* GSC-1x: The original GSC bus implemented on PCX-L and used in the Gecko, Mirage and Electra computers. Peak Bandwidth 142MB/s w/DMA, 106 MB/s with PIO writes.<br />
* GSC+: Enhancements added for Kitty``Hawk/Sky``Hawk (U2 chip) that allow for pending transactions. GSC+ enhancements are orthogonal to the GSC-1.5X and GSC-2X enhancements. Aka "Extended GSC" or "EGSC".<br />
* GSC-1.5x: GSC-1X with an additional variable length write transaction.<br />
* GSC-2x: GSC-1.5X with a protocol enhancement to allow data to be sent at double the GCLK rate (Peak bandwidth = 256 MB/s.)<br />
<br />
= Misc Notes =<br />
* All versions of the K-Class systems operate the GSC bus at the same speed. The core I/O slots all run at 32MHz. The other slots connected to the Harrier board all run at 40MHz.</div>Deller