Subject: RE: Reminder: SAS PHY WG conference call, 3/29/07, 10:00 am CDT Date: Wed, 28 Mar 2007 18:40:59 -0600 From: "Jenkins, Mike" <Mike.Jenkins@lsi.com> To: <Alvin.Cox@seagate.com>, <t10@t10.org> X-Message-Number: 7680 Formatted message: HTML-formatted message All, Below are links to two 8G Fibre Channel documents describing test patterns which I would like to propose for consideration in the 6G SAS spec. The motivation for new patterns is that scrambling made previous patterns far too pessimistic. Even in the unlikely event that a CJTPAT-like pattern did occur, scrambling which includes the frame header would now ensure that it did not repeat. The 1st presentation describes what is now termed JSPAT, a 500-bit, spectrally rich payload pattern for TX jitter testing. The 2nd presentation describes JTSPAT, a pattern with sequences like CJTPAT but within the 1e-12 probability of occurrence. * SJPAT for 8GFC PWS and WDP, http://www.t11.org/ftp/t11/pub/fc/pi-4/06-787v0.pdf * Proposal for 8GFC Jitter Test Pattern, http://www.t11.org/ftp/t11/pub/fc/pi-4/06-655v1.pdf Both of these patterns have been voted into the 8GFC draft spec. Regards, Mike ________________________________ From: owner-t10@t10.org [mailto:owner-t10@t10.org] On Behalf Of Alvin.Cox@seagate.com Sent: Wednesday, March 28, 2007 2:39 PM To: t10@t10.org Subject: Reminder: SAS PHY WG conference call, 3/29/07, 10:00 am CDT Toll Free Dial in Number: (866) 279-4742 International Access/Caller Paid Dial In Number: (309) 229-0118 PARTICIPANT CODE: 3243413 Webex information: https://seagate.webex.com/seagate Topic: SAS-2 PHY WG Date: Thursday Time: 10:00 am, Central Daylight Time (GMT -05:00, Chicago) Meeting number: 826 515 680 Meeting password: 6gbpsSAS We will continue our discussion on the number of taps for the reference receiver. The minutes of the 3/22 call are posted at the link below and contain several links to various data sets regarding transmitter equalization and DFE performance. Please be prepared on the 3/29 call for a strawman vote on the number of taps we should specify for the reference receiver model. 07-063r3 has been posted. http://www.t10.org/ftp/t10/document.07/07-156r0.pdf http://www.t10.org/ftp/t10/document.07/07-063r3.pdf I would like to look at the jitter numbers for both transmitter and receiver. Although we are still waiting on the measurement methodology information from ST Microelectronics, it is in process. The actual numbers can be determined while we wait for the presentation regarding the testing. My input is that we test the transmitter with one or two patterns. The receiver testing may include something different. Another possible item is 07-119. I don't know that Rob has had enough time available to update this proposal. Please send me any discussion items you may have. I will ask for these at the first of the call, but sending them to me or the reflector prior to it is appreciated. Alvin Cox Seagate Technology, LLC Tel 405-350-7424 Cell 405-206-4809 E-Mail alvin.cox@seagate.com