1.0 - SATA-IO

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©LeCroy CorporationPass Test Measurement Current Value Test CriteriaPHY-01PHY-01PHY-01PHY-03PHY-04PHY-04Also see PHY-01.Unit Interval Min 333.322 ps Informational OnlyUnit Interval Max 335.068 ps Informational OnlyUnit Interval Mean 334.188 ps 333.217 ps
©LeCroy CorporationTest PHY-04 – Spread-Spectrum Modulation DeviationPurpose: To verify that the Spread-Spectrum Modulation Deviation of the PUT’s transmitter is within theconformance limits.References:[1] SATA Standard, 7.2.1, Table 29 – General Specifications[2] Ibid, 7.2.2.1.6 – Spread-Spectrum Modulation Deviation[3] Ibid, 7.4.14 – SSC Profile[4] SATA PRE-TEST MOI[5] SATA Interoperability Program Unified Test Document, 2.13.4Resource Requirements:Same requirements as for PHY-01.Last Modification: March 25, 2009Discussion:Reference [1] specifies the general PHY conformance limits for SATA products. This specificationincludes conformance limits for the Spread-Spectrum Modulation Deviation. Reference [2] provides the definitionof this term for the purposes of SATA testing. Reference [3] defines the measurement requirements for this test.Reference [4] describes the procedure for placing the PUT into BIST mode to generate the required test patterns.Reference [6] corrects the limits of SSC tol so that they do not conflict with the unit interval limits.The test is only run on products with SSC enabled. An SSC Track is used to demodulate the signal andapply a low pass filter, as in PHY-01. The Spread-Spectrum Modulation deviation, SSC TOL , is measured from theSSC Track. The results reported are the upper and lower values of the SSC Track calculated as follows:Upper: ((mean of the max frequency over 10 SSC cycles) – nominal frequency)/nominal frequency * 1e6 ppm.Lower: ((mean of the min frequency over 10 SSC cycles) – nominal frequency)/nominal frequency * 1e6 ppm.This test is only run once at the maximum interface rate of the product (1.5Gb/s, 3.0Gb/s or 6.0Gb/s).Test Setup:Same setup as for PHY-01.Test Procedure:The channels should be deskewed before performing this test. See Appendix A for details. The testprocedure then proceeds as follows:1) Open the QualiPHY SATA PHY, TSG, OOB test suite. See Appendix B for details.2) Select an appropriate configuration for the maximum supported speed with PHY-04 selectedand with the proper SSC setting.3) Run the test.4) When prompted to produce HFTP set the product to generate HFTP. See Appendix C fordetails. Check the pattern on the oscilloscope to make sure it is correct. Press “OK” to continue.5) When the test completes, generate a report. Observe the results for PHY-04 in the report. Thisvalue is reported as “SSCtol”.Observable Results:The Spread-Spectrum Modulation Deviation value shall be between –5350ppm and +350ppm for productsrunning at either 1.5Gb/s, 3.0Gb/s or 6.0Gb/s.Possible Problems:See PHY-01.LeCroy Corporation 17 SATA PHY, TSG, OOB LeCroy MOI rev 1.4 version 1.0
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Page 3 and 4: ©LeCroy CorporationAPPEDIX A - IFO
Page 5 and 6: ©LeCroy CorporationMarch 25, 2009
Page 7 and 8: ©LeCroy CorporationITRODUCTIOThe t
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©LeCroy Corporation15. Click on th
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©LeCroy CorporationAppendix F - OO
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