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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">Lana,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">Thank you for your question.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">This is an interesting scenario, I will need to review this will other member organizations for their opinions before responding with a recommendation.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">Tim Symons<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">SPL-5 Editor<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:#365F91"><o:p>&nbsp;</o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:#365F91">Tim Symons | Associate Technical Fellow<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#595959">Microchip Technology Inc.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><a href="mailto:Tim.Symons@microchip.com">Tim.Symons@microchip.com</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img border="0" width="187" height="44" style="width:1.95in;height:.4583in" id="Picture_x0020_1" src="cid:image001.png@01D74817.32DE34F0" alt="cid:image001.png@01D521DF.19431CF0"></span><span lang="EN-US" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> t10-bounces@t10.org &lt;t10-bounces@t10.org&gt;
<b>On Behalf Of </b>Lana Chan<br>
<b>Sent:</b> Thursday, May 6, 2021 11:38 AM<br>
<b>To:</b> t10@t10.org<br>
<b>Subject:</b> [T10] Clarification requested for the detection of END_TRAIN in Train-TX Speed Negotiation Window<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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<p class="MsoNormal" style="background:yellow"><span lang="EN-US" style="font-size:12.0pt;font-family:&quot;Arial&quot;,sans-serif;color:red">EXTERNAL EMAIL:
</span><span lang="EN-US" style="font-size:12.0pt;font-family:&quot;Arial&quot;,sans-serif">Do not click links or open attachments unless you know the content is safe
<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I am seeking clarification regarding <b>END_TRAIN in Train-Tx Speed Negotiation Window</b> in the Physical Layer in which the&nbsp;&nbsp;Train-Tx comprises of the exchange of Transmitter Training Pattern between two SAS devices.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Per the </span><b><span lang="EN-US" style="font-size:10.0pt">Working Draft SAS Protocol Layer - 4 (spl4r11), Section - 5.11.4.2.3.4.2 Transmitter training,
</span></b><span lang="EN-US">&nbsp;the transmitter training pattern comprises of the following
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img border="0" width="690" height="200" style="width:7.1916in;height:2.0833in" id="Picture_x0020_4" src="cid:image004.jpg@01D74817.156383D0"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Can you please provide clarification for the following scenario:<o:p></o:p></span></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-US">Receiver does detect the END_TRAIN and TTIU received is considered as valid.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-US">Receiver does not detect the END_TRAIN and still considered the received TTIU.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-US">Receiver does not detect the END_TRAIN and discarded the received TTIU.<o:p></o:p></span></li></ol>
<p class="MsoNormal" style="margin-left:.25in"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">As per our understanding receiver discarded the TTIU, If END_TRAIN is not detected (point-3). We are not agreeing to point-2. Please let us know which scenario is valid.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Kind regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Lana<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p>&nbsp;</o:p></span></p>
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