QPHY-eDP Embedded DisplayPort Serial Data Compliance Software. Instruction Manual

Transcription

1 QPHY-eDP Embedded DisplayPrt Serial Data Cmpliance Sftware Instructin Manual Revisin B Nvember, 2017 Relating t: XStreamDSO v.8.5.x.x and later QualiPHY Sftware v.8.5.x.x and later

2 700 Chestnut Ridge Rad Chestnut Ridge, NY, Tel: (845) , Fax: (845) teledynelecry.cm 2017 Teledyne LeCry, Inc. All rights reserved. Custmers are permitted t duplicate and distribute Teledyne LeCry dcumentatin fr internal training purpses. Unauthrized duplicatin is strictly prhibited. Teledyne LeCry and ther prduct r brand names are trademarks r requested trademarks f their respective hlders. Infrmatin in this publicatin supersedes all earlier versins. Specificatins are subject t change withut ntice Rev B Nvember, 2017

3 Table f Cntents QPHY-eDP Instructin Manual Intrductin... 1 Abut QualiPHY... 1 Abut QPHY-eDP... 1 Required Equipment and Sftware... 1 Required Hst Cmputer System... 2 Installatin and Setup... 3 Install Base Applicatin... 3 Activate Cmpnents... 3 Set Up Secndary Display... 3 Set Up Remte Cntrl... 4 Cnfigure Oscillscpe fr Remte Cntrl... 4 Add Cnnectin t QualiPHY... 4 Select Cnnectin... 4 Using QualiPHY... 5 Accessing the Sftware... 5 General Setup... 6 Cnnectin tab... 6 Sessin Inf tab... 6 Reprt tab... 6 Advanced tab... 6 Abut tab... 6 QualiPHY Test Prcess... 7 Set Up Test Sessin... 7 Run Tests... 8 Generate Reprts... 9 Custmizing QualiPHY Cpy Cnfiguratin Select Tests Edit Variables Edit Test Limits X-Replay Mde QPHY-eDP Testing Test Preparatin Required DUT Test Mdes Hst Prgram Cntrl Fur-lane Testing Deskewing Input Channels, Cables and/r Switches De-embedding QPHY-eDP Test Cnfiguratins All edp 1.4 Tests All edp Tests, 1 Lane, HBR2 Only Dem, edp 1.0, HBR Dem, edp 1.4, HBR QPHY-eDP Test Descriptins Deskew Channels Main Link CTG v1.4 Tests Main Link CTG v1.0 Tests AUX Channel EYE Test (CTG 1.0 nly) QPHY-eDP Variables Bitrate Setup Grup Lane Setup Grup Swing and Pre-emphasis Level Setup Grup Save/Recall Wavefrm Grup Hst Prgram Cntrl Grup De-embedding Setup Grup Rev B i

4 Other Setup Grup QPHY-eDP Limit Sets Appendix A: Using Hst Prgram Cntrl Mde Preparing Special Cnfiguratin fr Hst Cntrl Mde Hst Prgram Elements Needed t Cntrl the QualiPHY Script Launching QualiPHY (XReplay.exe) Mnitring fr QualiPHY Terminatin File Transfer Synchrnizatin Renaming the Test Reprt Sample Hst Prgram HPC Sync File Sync File Tags Sample XML Sync Files Table f Figures Figure 1 - QualiPHY framewrk dialg and standard selectin menu... 5 Figure 2 - The Test Reprt Cver and Summary pages... 9 Figure 3 Cnfiguratin Test Selectr tab Figure 4 X-Replay Mde windw Abut This Manual This manual assumes that yu are familiar with using an scillscpe in particular the Teledyne LeCry scillscpe that will be used with QualiPHY and that yu have purchased and installed the QPHYeDP sftware ptin. Sme f the images in this manual may shw QualiPHY prducts ther than QPHY-eDP, r were captured using different mdel scillscpes, as they are meant t illustrate general cncepts nly. Rest assured that while the user interface may lk different frm yurs, the functinality is identical. ii

5 QPHY-eDP Instructin Manual Intrductin Abut QualiPHY QualiPHY is highly autmated cmpliance test sftware meant t help yu develp and validate the PHY (physical-electrical) layer f a device, in accrdance with the fficial dcuments published by the applicable standards rganizatins and special interest grups (SIGs). Yu can additinally set custm variables and limits t test cmpliance t internal standards. QualiPHY is cmpsed f a framewrk applicatin that enables the cnfiguratin and cntrl f separate tests fr each standard thrugh a cmmn user interface. Features include: Multiple Data Surce Capability: Cnnect t yur X-Stream scillscpe via LAN r ther interfaces. User-Defined Test Limits: Tighten limits t ensure devices are well within the passing regin, even if subsequently measured with different equipment. Flexible Test Results Reprting that includes XML Test Recrd Generatin. Understand a device perfrmance distributin, r btain prcess related infrmatin frm the devices under test. Abut QPHY-eDP The QualiPHY-eDP cmpliance test package fllws the Cmpliance Test Guideline dcument fr edp 1.4 (edp1.4 PHY CTG v1 d1.pdf), and specificatin dcument edp_v1.4a_mem.pdf. The sftware can be run n any Teledyne LeCry scillscpe with at least 8 GHz bandwidth and 40 GS/s sample rate. Required Equipment and Sftware Teledyne LeCry real-time scillscpe, 9 GHz BW, installed with XStreamDSO v minimum* with an activated QPHY-DP ptin key QualiPHY v.7.9.x.x minimum with an activated QPHY-DP cmpnent SDAIII ptin fr cmpliance testing (standard n SDA Zi and DDA Zi scillscpes), SDAIII-LinQ ptin fr multi-lane testing/debugging Eye Dctr II ptin fr HBR2 wrst-case cable EYE test VirtualPrbe ptin if de-embedding TPA r switch/cables Manchester Decde ptin fr AUX Channel test (included with QPHY-eDP ptin cde) *Nte: The versins f XStreamDSO and QualiPHY sftware must match, s upgrade yur versin f QualilPHY if yu have upgraded yur scillscpe firmware. The versins listed abve are the minimum versins required fr this prduct. The QualiPHY sftware may be installed n a remte PC, but all ther sftware must be run n the scillscpe. Wilder Technlgies edp test adapter mdel DP-TPI-P 4 SMA Male t SMA Male cables Rev B 1

6 Remte Hst Cmputer Requirements Usually, the scillscpe is the hst cmputer fr the QualiPHY sftware, and all mdels that meet the acquisitin requirements will als meet the hst system requirements. Hwever, if yu wish t run the QualiPHY sftware frm a remte cmputer, these minimum requirements apply: Operating System: Windws 10 Prfessinal Windws 7 Prfessinal 1 GHz r faster prcessr 1 GB (32-bit) r 2 GB (64-bit) f RAM Ethernet (LAN) netwrk capability Hard Drive: At least 100 MB free t install the framewrk applicatin Up t 2 GB per standard installed t stre the lg database (each database grws frm a few MB t a maximum f 2 GB) See Set Up Remte Cntrl fr cnfiguratin instructins. 2

7 Installatin and Setup QPHY-eDP Instructin Manual QualiPHY is a Windws-based applicatin that can be cnfigured with ne r mre serial data cmpliance cmpnents. Each cmpliance cmpnent is purchased as a sftware ptin. Install Base Applicatin Dwnlad the latest versin f the QualiPHY sftware frm: teledynelecry.cm/supprt/sftwaredwnlad under Oscillscpe Dwnlads > Sftware Utilities If the scillscpe is nt cnnected t the Internet, cpy the installer nt a USB memry stick then transfer it t the scillscpe desktp r a flder n a D:\ drive t execute it. Run QualiPHYInstaller.exe and fllw the installer prmpts. Chse all the cmpnents yu plan t activate. If yu mit any cmpnents nw, yu will need t update the installatin t activate them later. By default, the scillscpe appears as lcal hst when QualiPHY is executed n the scillscpe. Fllw the steps under Add Cnnectin t QualiPHY t check that the IP address is Activate Cmpnents The serial data cmpliance cmpnents are factry installed as part f the main applicatin in yur scillscpe and are individually activated thrugh the use f an alphanumeric cde uniquely matched t the scillscpe s serial number. This ptin key cde is what is delivered when purchasing a sftware ptin. T activate a cmpnent n the scillscpe: 1. Frm the menu bar, chse Utilities > Utilities Setup. 2. On the Optins tab, click Add Key. 3. Use the Virtual Keybard t Enter Optin Key, then click OK. If activatin is successful, the key cde nw appears in the list f Installed Optin Keys. 4. Restart the scillscpe applicatin by chsing File > Exit, then duble-clicking the Start DSO icn n the desktp. Set Up Secndary Display Teledyne LeCry recmmends running QualiPHY n an scillscpe with a secndary display attached. This allws the wavefrm and measurements t be shwn n the scillscpe LCD display while the QualiPHY applicatin and test results are displayed n a secnd mnitr. See the scillscpe Operatr s Manual fr instructins n setting up dual mnitr display Rev B 3

8 Set Up Remte Cntrl QualiPHY sftware can be executed frm a remte hst cmputer, cntrlling the scillscpe thrugh a LAN Cnnectin. Cnfigure Oscillscpe fr Remte Cntrl 1. Frm the menu bar, chse Utilities Utilities Setup Open the Remte tab and set Remte Cntrl t TCP/IP. 3. Verify that the scillscpe shws an IP address. Add Cnnectin t QualiPHY 1. On the hst PC, dwnlad and run QualiPHYInstaller.exe. 2. Start QualiPHY and click the General Setup buttn. 3. On the Cnnectin tab, click Scpe Selectr. 4. Click Add and chse the cnnectin type. Enter the scillscpe IP address frm Step 3 abve. Click OK. 5. When the scillscpe is prperly detected, it appears n the Scpe Selectr dialg. Select the cnnectin, and click OK. QualiPHY is nw ready t cntrl the scillscpe. Select Cnnectin Multiple scillscpes may be accessible t a single remte hst. In that case, g t General Setup and use the Scpe Selectr at the start f the sessin t chse the crrect cnnectin. QualiPHY tests the scillscpe cnnectin when starting a test. The system warns yu if there is a cnnectin prblem. 4

9 Using QualiPHY QPHY-eDP Instructin Manual This sectin prvides an verview f the QualiPHY user interface and general prcedures. Fr detailed infrmatin abut the QPHY-eDP sftware ptin, see QPHY-eDP Testing. Accessing the Sftware Once QualiPHY is installed and activated, it can be accessed frm the scillscpe menu bar by chsing Analysis > QualiPHY, r by duble-clicking the QualiPHY desktp icn n a remte cmputer. The QualiPHY framewrk dialg illustrates the verall sftware flw, frm general set up thrugh running individual cmpliance tests. Wrk frm left t right, making all desired settings n each subdialg. Figure 1 - QualiPHY framewrk dialg and standard selectin menu The sub-dialgs are rganized int tabs each cntaining cnfiguratin cntrls related t that part f the prcess. These are described in mre detail in the fllwing sectins. If Pause n Failure is checked, QauliPHY prmpts t retry a measure whenever a test fails. Reprt Generatr launches the manual reprt generatr dialg. The Exit buttn at the bttm f the framewrk dialg clses the QualiPHY applicatin Rev B 5

10 General Setup The first sub-dialg cntains general system settings. These remain in effect fr each sessin, regardless f Standard used, until changed. Cnnectin tab Shws IP Address f the test scillscpe (lcal hst if QualiPHY is run frm the scillscpe). The Scpe Selectr allws yu t chse the scillscpe used fr testing when several are cnnected t the QualiPHY installatin. See Set Up Remte Cntrl fr details. Sessin Inf tab Optinal infrmatin abut the test sessin that may be added t reprts, such as: Operatr Name, Device Under Test (DUT), Temperature (in C) f the test lcatin, and any additinal Cmments. There is als an ptin t Append Results r Replace Results when cntinuing a previus sessin. T ptimize reprt generatin, enter at least a DUT name at the beginning f each sessin. Reprt tab Settings related t autmatic reprt generatin. Chse: Reprting behavir f: Ask t generate a reprt after tests, where yu ll be prmpted t create a new file fr each set f test results. Never generate a reprt after tests, where yu ll need t manually execute the Reprt Generatr t create a reprt. Always generate a reprt after tests, t autgenerate a reprt f the latest test results. Default reprt utput type f XML, HTML, r PDF. A generic Output file name, including the full path t the reprt utput flder. Optinally, check Allw style sheet selectin in Reprt Generatr t enable the use f a custm.xslt when generating reprts (XML and HTML utput nly). The path t the.xslt is entered n the Reprt Generatr dialg. Reprt Generatr launches the Reprt Generatr dialg, which cntains the same settings as the Reprt tab, nly applied t individual reprts. Advanced tab This tab launches the X-Replay Mde dialg. See X-Replay Mde. Abut tab Infrmatin abut yur QualiPHY installatin. 6

11 QPHY-eDP Instructin Manual QualiPHY Test Prcess Once general system settings are in place, these are the steps fr running test sessins. Set Up Test Sessin 1. Cnnect the scillscpe t the DUT - QualiPHY will display cnnectin diagrams during peratin t assist with this. 2. Open the QualiPHY sftware t display the framewrk dialg. 3. If running QualiPHY remtely, click General Setup and pen the Scpe Selectr t select the crrect scillscpe cnnectin. 4. If yu have mre than ne cmpnent activated, click Standard and select the desired standard t test against. Otherwise, yur ne activated cmpnent will appear as the default selectin. Nte: Althugh all the QualiPHY cmpnents appear n this dialg, nly thse selected when installing QualiPHY are enabled fr selectin. 5. Click the Cnfiguratin buttn and select the test cnfiguratin t run. These pre-laded cnfiguratins are set up t run all the tests required fr cmpliance and prvide a quick, easy way t begin cmpliance testing. See QPHY-eDP Test Cnfiguratins fr a descriptin f yur cnfiguratins. Yu can als create custm cnfiguratins fr internal cmpliance tests by cpying and mdifying the pre-laded cnfiguratins. See Custmizing QualiPHY fr details. 6. Clse the Edit/View Cnfiguratin dialg t return t the framewrk dialg Rev B 7

12 Run Tests 1. On the framewrk dialg, click Start t begin testing. When tests are in prgress, this buttn changes t Stp. Click it at any time t stp the test in prcess. Yu ll be able t resume frm the pint f terminatin r frm the beginning f the test. 2. Fllw the pp-up windw prmpts. QualiPHY guides yu step-by-step thrugh each f the tests described in the standard specificatin, including diagrams f the cnnectin t the DUT fr each required test mde. 3. When all tests are successfully cmpleted, bth prgress bars n the framewrk dialg are cmpletely green and the message All tests cmpleted successfully appears. If prblems are encuntered, yu ll be ffered ptins t: Retry the test frm the latest established pint defined in the script Ignre and Cntinue with the next test Abrt Sessin 8

13 QPHY-eDP Instructin Manual Generate Reprts The QualiPHY sftware autmates reprt generatin. On the framewrk dialg, g t General Setup > Reprt t pre-cnfigure reprting behavir. Yu can als manually launch the Reprt Generatr frm the framewrk dialg nce a test is run. The Reprt Generatr ffers the same selectins as the Reprt tab, nly applied t each reprt individually, rather than as a system setting. There are als ptins t link a custm style sheet (.xslt) t the reprt, r t Exclude Infrmative Results. The Test Reprt includes a summary table with links t the detailed test result pages. Figure 2 - The Test Reprt Cver and Summary pages Reprts are utput t the flder D:\QPHY\Reprts, r C:\LeCry\QPHY\Reprts if QualiPHY is installed n a remte PC. Yu can add yur wn lg t the reprt by replacing the file *\QPHY\StyleSheets\CustmerLg.jpg. The recmmended maximum size is 250x100 pixels at 72 ppi, 16.7 millin clrs, 24 bits. Use the same file name and frmat Rev B 9

14 Custmizing QualiPHY Pre-laded cnfiguratins that are lcked cannt be mdified, as these have been created with exactly the tests and variable settings required fr cmpliance. Hwever, yu can mdify cpies f these cnfiguratins fr internal testing. Unlcked cnfiguratins can be mdified by altering test selectins and variable settings. Cpy Cnfiguratin 1. Access the QualiPHY framewrk dialg and select a Standard. 2. Click Edit/View Cnfiguratin and select the cnfiguratin upn which t base the new cnfiguratin. This can be a pre-laded cnfiguratin r anther cpy. 3. Click Cpy and enter a name and descriptin. Nte: Until yu enter a new name, the new cnfiguratin is shwn fllwed by (Cpy). 4. Select the new cnfiguratin frm the list and fllw the prcedures belw t cntinue making changes. Nte: If any part f a cnfiguratin is changed, the Save As buttn becmes active n the bttm f the dialg. If a custm cnfiguratin is changed, the Save buttn will als becme active t apply the changes t the existing cnfiguratin, rather than create a new ne. 10

15 QPHY-eDP Instructin Manual Select Tests On the Test Selectr tab, check the tests that make up the cnfiguratin. Each test is defined by the Embedded DisplayPrt standard. A descriptin f each test is displayed when it is selected. T lp any f the tests in this cnfiguratin, select the test frm the list, then chse t Lp selected test until stpped r enter the number f repetitins. When defining a number f repetitins, enter the number f repetitins befre selecting the checkbx. Figure 3 Cnfiguratin Test Selectr tab Rev B 11

16 Edit Variables The Variable Setup tab cntains a list f test variables. See QPHY-eDP Variables fr a descriptin f each. T mdify a variable: 1. Select the variable n the Variable Setup tab, then click Edit Variable. 2. The cnditins f this variable appear n a pp-up. Chse the new cnditin t apply. Yu can als chse t Reset t Default at any time. 12

17 QPHY-eDP Instructin Manual Edit Test Limits The Limits tab shws the Limit Set currently assciated with the cnfiguratin. Any limit set can be assciated with a custm cnfiguratin by selecting it in this field. The Limits Manager shws the settings fr every test limit in a limit set. Thse in the Default set are the limits defined by the standard. T create a custm limit set: 1. On the Limits tab, click Limits Manager. 2. With the default set selected, click Cpy Set and enter a name. Nte: Yu can als chse t cpy and/r mdify anther custm set that has been assciated with this cnfiguratin. 3. Duble click the limit t be mdified, and in the pp-up enter the new values. Yu can als Imprt Limits frm a.csv file. Navigate t the file lcatin after clicking the buttn. Tip: Likewise, Exprt Limits creates a.csv file frm the current limit set. Yu may wish t d this and cpy it t frmat the input.csv file Rev B 13

18 X-Replay Mde The X-Replay mde windw is an advanced ( develper ) view f QualiPHY. The tree in the upper-left frame enables yu t navigate t prcesses in the edp test script, in case yu need t review the cde, which appears in the upper-right frame. Tw ther particularly useful features are: A list f recent test sessins in the lwer-left frame. While yu can nly generate a reprt f the current test sessin in the QualiPHY wizard, in X-Replay Mde yu can generate a reprt fr any f these recent sessins. Select the sessin and chse Reprt > Create Reprt frm the menu bar. The QualiPHY lg in the bttm-right frame. The frame can be split by dragging up the lwer edge. The bttm half f this split frame nw shws the raw Pythn utput. Figure 4 X-Replay Mde windw 14

19 QPHY-eDP Instructin Manual QPHY-eDP Testing Embedded DisplayPrt cmpliance testing invlves generating signals with varius bitrates, patterns, levels, pre-emphasis settings, and SSC settings all n up t fur lanes. The QualiPHY-eDP test script lps ver the different values f each f these prperties and perfrms tests n cmbinatins f signal prperties that are enabled fr testing. While sme f the prperties may be defined by the user, this lping structure is nt cntrlled by the user. A cnsequence f using this particular architecture is that the rder in which tests are executed will depend n which tests are selected within the cnfiguratin, and which swing/pre-emphasis levels are chsen. The QualilPHY script enfrces the edp rules fr which pre-emphasis levels are supprted vs. swing levels (fr example; Table 4-3 in the edp 1.4 specificatin): Hwever, because f the flexibility permitted by the specificatin in cnfiguring swing and preemphasis, it is pssible t set unused levels fr swing and pre-emphasis (e.g., swing = 3 and preemphasis = 3). Unused cmbinatins are nt tested. Test Preparatin Befre beginning any test r data acquisitin, warm the scillscpe fr at least 20 minutes. Calibratin is perfrmed autmatically by the scillscpe sftware; n manual calibratin is required. The calibratin prcedure will be run again if the temperature f the scillscpe changes by mre than a few degrees. Required DUT Test Mdes All tests require that the DisplayPrt test fixture be cnnected t the DUT. The test fixture utputs will cnnect either directly t the scillscpe, r ptinally t the switch matrix. Refer t the QualiPHY cnnectin diagrams fr physical set up infrmatin. QPHY-eDP supprts bth fully autmated and semi-autmated testing. In either case, the DUT must be placed in the required test mde. It is recmmended that yu ensure the DUT is capable f utputting the required test mdes befre beginning testing. Hst Prgram Cntrl Hst Prgram Cntrl (HPC) is a mde f peratin where QualiPHY is cntrlled by a separate applicatin (the Hst Prgram ). In this mde f peratin, QualiPHY uses a simple handshaking prtcl t send messages t the hst prgram. This is implemented using a synchrnizatin file. See Appendix 1: Using Hst Prgram Cntrl. Nte: When in HPC mde, QualiPHY will halt executin while waiting fr the sync file t be deleted Rev B 15

20 Fur-lane Testing QPHY-eDP perfrms autmated testing f all fur lanes by using the Mini-Circuits USB-4SPDT-A18 switch matrix. T cnfigure fur-lane testing, set the Number f Lanes variable t 4. This variable setting signals QualiPHY t use the switch matrix. If yu d nt have a switch, ne r tw lanes may be tested simultaneusly. Deskewing Input Channels, Cables and/r Switches In rder t achieve the highest accuracy pssible, a deskewing step is required. Deskewing (r simply deskew ) crrects fr any difference in the path lengths cnnecting each signal input t the scillscpe. When prperly deskewed, differences in these path lengths are crrected, aviding ptential measurement errrs. Imprperly deskewed inputs can result in higher than expected intra-pair and inter-pair skew measurements, incrrect differential rise and fall times, higher than expected AC Cmmn Mde nise measurements, excess eye diagram clser, excess jitter, etc. Higher bandwidth Teledyne LeCry scillscpes (such as WaveMaster 8 Zi series) include the unique FastEdge utput signal and trigger type t facilitate deskewing. The test script uses this utput as a signal surce in cnjunctin with the FastEdge trigger t measure the arrival time f the FastEdge thrugh each channel. Deskew values are stred in a file, and are recalled back int each channel s Deskew setting, which is lcated in the Pre-prcessing sectin f each channel s cnfiguratin dialg. There are three basic kinds f deskew that are perfrmed: Deskew nly the scillscpe s inputs 2. Deskew input cabling and scillscpe inputs 3. Deskew input switches, cabling and scillscpe inputs Oscillscpe Inputs Only When wishing t crrect fr timing differences nly between the scillscpe input cnnectrs and the internal digitizing hardware, a deskew is perfrmed where the reference plane is the pint where the input signal is plugged int the scillscpe. This type f deskew is used in the case where the test fixture is being cnnected directly t the scillscpe inputs. T perfrm this deskew, discnnect all signals, and use a single cable cnnected t the FastEdge utput. When the sftware prmpts yu t plug a cable int an input channel, simply change the cnnectin frm ne channel t the next using the same cable. The script will stre a file cntaining time ffsets between the FastEdge signal and the trigger time. Skew with respect t channel 1 will be used during testing, such that the deskew setting fr C1 = 0. The deskew settings fr ther channels are with respect t the value measured fr C1. Deskew values that are small (picsecnds) will result. Input Cabling and Oscillscpe Inputs When timing differences between the cables used t cnnect the DUT t the scillscpe are nt f interest and are t be remved (which is usually the case), then a slightly different deskew prcedure is used. This type f deskew is used in the case where the test fixture is cnnected t the scillscpe via cables. Leave the cables cnnected t the scillscpe, and discnnect them frm the DUT. When the sftware prmpts yu t, plug a cable int an input channel (e.g., C2), leave the cable plugged int C2, and cnnect the ther end f the cable int the FastEdge cnnect. (Dn t frget t trque prperly!) The result is a deskew f the input path thrugh the cables specific t each channel, thrugh the LP-SMA adapter, and the scillscpe s internal circuitry. The script will stre t file the time ffsets between the FastEdge signal and the trigger.

21 QPHY-eDP Instructin Manual Skew with respect t channel 1 will be used during testing, such that the deskew setting fr C1 = 0. The deskew settings fr ther channels are with respect t the value measured fr C1. Deskew values depend n cable lengths used, but if the cables are f the same nminal length (but are nt specifically matched cables ), then channel deskew values can be as high as several tens f picsecnds. Tip: Label the cables and input adapters with the number f the channel t which they are cnnected. Mini-circuits, Input Switches, Input Cabling and Oscillscpe Inputs When using a switch matrix t rute inputs frm the test fixture t the scillscpe, there are tw chices. One is t perfrm a deskew as described belw, the ther is t de-embed the switch matrix and attached cables via S-parameter de-embedding feature f the QualiPHY-eDP script. D nt d bth, since this will essentially Duble crrect fr any skew. Nte: The S-parameter de-embeding perfrmed by the VirtualPrbe feature f the scillscpe will crrect fr bth lss and skew, since S-parameters include bth magnitude and phase infrmatin. Nte: The QPHY-eDP script des nt utilize any special deskew prcedure fr perfrming a deskew thrugh the switch. Emply matched cables t cnnect the text fixture t the switch (r t directly cnnect them), and use ne f the methds described abve. The Mini-Circuits switches are suitably matched. Imprtant: Use a trque wrench at each step in the deskew prcess. If a trque wrench is nt used, the accuracy can easily be ff by several picsecnds. De-embedding QualiPHY-eDP includes the capability t de-embed the TPA-P as well as any switch matrix and/r cables that sit between the lane under test and the scillscpe. De-embedding is accmplished by using the VirtualPrbe sftware capability t emulate the effects f the TPA/switches S-parameters. T de-embed, yu must prvide the Tuchstne files cntaining the cmplete S-parameters. Nte: De-embedding the TPA r switch is nt a requirement f the edp CTG, nr is it explicitly recmmended. Hwever, yu may wish t de-embed if the DUT s perfrmance is n the pass/fail bundary. TPA Fr the TPA (test fixture), this is a 4-prt S-parameter file (.s4p), which wuld be s-parameters that represent any f the main link differential pairs. This file is specific t the TPA in use and shuld be requested frm yur TPA vendr if required. Switch/Cable Fr switches/cables, ne tw-prt file (.s2p) is needed fr each signal path that cnnects a single TPA utput (such as Lane0(-), t a scillscpe channel. The S2P file can be f any part f the path between the TPA utput and the scillscpe channel that yu wish t de-embed. Fr a cmpete deembedding, make yur S-parameter measurements frm the cable cnnecting t the TPA utputs (if used) t the end f the cable that is attached t the scillscpe channel. The S2P file cnnecting Lane N f plarity M t channel X must be named using the syntax: switchlane{n}{m}-c{x} Rev B 17

22 Example filenames are shwn in the fllwing table: S-parameter filename switchlane0+c1.s2p switchlane0-c2.s2p switchlane1+c3.s2p switchlane1-c4.s2p switchlane2+c1.s2p switchlane2-c2.s2p switchlane3+c3.s2p switchlane3-c4.s2p Crrespnding signal path Lane0 (+) t scillscpe channel C1 Lane0 (-) t scillscpe channel C2 Lane1 (+) t scillscpe channel C3 Lane1 (-) t scillscpe channel C4 Lane2 (+) t scillscpe channel C1 Lane2 (-) t scillscpe channel C2 Lane3 (+) t scillscpe channel C3 Lane3 (-) t scillscpe channel C4 Preparing t De-embed Prir t perfrming de-embedding within QualiPHY, it is gd practice t examine the tuchstne files with an S-parameter viewer in rder t cnfirm that the S-parameters are healthy. Set up the de-embedding in Virtual Prbe and examine the de-embedding manually. This separate step will allw yu t cnfirm that S-parameters fr the TPA r switch are being prperly read-in and yield reasnable results. After cnfirming the de-embedding in VirtualPrbe, cnfigure QualiPHY t perfrm the de-embedding. 18

23 QPHY-eDP Instructin Manual QPHY-eDP Test Cnfiguratins QPHY-eDP includes predefined test cnfiguratins fr different test setups. Each test cnfiguratin includes a unique selectin f tests and variable settings, which can be reviewed by selecting Edit/View Cnfiguratin frm the Framewrk dialg and pening the Test Selectr and Variable Setup tabs. See QPHY-eDP Variables fr a descriptin f each variable and its default value. All edp 1.4 Tests All transmitter cmpliance tests (CTG v1.4, CTG v1.0 and AUX channel), perfrmed n all lanes. All edp Tests, 1 Lane, HBR2 Only All transmitter cmpliance tests (CTG v1.4, CTG v1.0 and AUX channel), pre-cnfigured t use scillscpe C1 and C2 t test a single lane (Lane0) at HBR2 bitrate 7 (5.4 Gb/s) nly. Dem, edp 1.0, HBR Uses saved wavefrms t demnstrate all CTG v1.0 transmitter tests n Lane0 at HBR bitrate 4 (2.7 Gb/s). Dem, edp 1.4, HBR2 Uses saved wavefrms t demnstrate all CTG v1.4 transmitter tests n Lane0 at HBR2 bitrate 7 (5.4 Gb/s) Rev B 19

24 QPHY-eDP Test Descriptins Deskew Channels This is an ptinal prcedure that may be added t custm cnfiguratins. It guides the user thrugh the steps required t deskew cables prir t running ther tests. Main Link CTG v1.4 Tests 1.1 TP3_EQ Eye Diagram Testing Tests that the eye diagram meets the mask requirements defined in sectin f edp CTG v1.4 draft 1. Perfrmed using the CP2520 pattern at all supprted transfer rates TP3_EQ Tj/Dj Tests that Tj and Dj meet the requirements defined in sectin 1.4 f edp CTG v1.4 draft 1. Perfrmed using the CP2520 pattern at all supprted transfer rates. 1.8 Intra-pair Skew Test (Infrmative) Measures the Intra-pair skew as described in sectin 1.8 f edp CTG v1.4 draft 1. Perfrmed using the CP2520 pattern at the highest supprted transfer rate. Nte that limits fr this test are nt defined in v1.4 f the edp CTG. 1.9 AC Cmmn Mde Nise (Infrmative) Measures the AC cmmn-mde nise as described in sectin 1.9 f edp CTG v1.4 draft 1. Perfrmed using the CP2520 pattern at all supprted transfer rate. Nte that limits fr this test are nt defined in v1.4 f the edp CTG. 1.7 Differential Transitin Time (Infrmative) Measures the min, max and mean rise and fall differential transitin times as described in sectin 1.7 f edp CTG v1.4 draft 1. Perfrmed using the PLTPAT pattern at all supprted transfer rates. Nte that limits fr this test are nt defined in v1.4 f the edp CTG Main Link Frequency Cmpliance Tests that the minimum and maximum Main Link frequency range meets the limits defined in sectin f edp CTG v1.4 draft 1. Perfrmed using the D10.2 pattern at all supprted transfer rates. 1.5 Spread Spectrum Mdulatin Frequency Tests that the SSC frequency meets the limits defined in sectin 1.5 f edp CTG v1.4 draft 1. Perfrmed using the D10.2 pattern at all supprted transfer rates when SSC is enabled. 1.6 Spread Spectrum Mdulatin Deviatin Tests that the SSC mdulatin deviatin meets the limits defined in sectin 1.6 f edp CTG v1.4 draft 1. Perfrmed using the D10.2 pattern at all supprted transfer rates when SSC is enabled. 20

25 Main Link CTG v1.0 Tests QPHY-eDP Instructin Manual 3.1 TP3 Eye Diagram Test Tests that the eye diagram meets the mask requirements defined in sectin 3.1 f edp CTG v1.0.fr HBR2 signals, the test shuld be perfrmed at TP3_EQ using the CP2520 pattern. Fr HBR/RBR and all intermediate rates, the test is perfrmed at TP3, and a PRBS7 pattern shuld be used. 3.2 Inter-pair Skew Test Tests that the inter-pair skew meets the limits specified in sectin 3.2 f the edp 1.0 CTG, using a PRBS7 pattern at TP Nn-ISI Jitter, RBR/HBR nly Test that the Nn-ISI jitter meets the limits specified in sectin 3.3 f the edp 1.0 CTG. The test shuld be perfrmed n HBR and RBR signals using a PRBS7 pattern Tj / Dj Measurements Tests that the Ttal and Deterministic Jitter (Tj and Dj) meet the limits specified in sectin f the edp v1.0 CTG. Fr HBR2, the CPAT2520 pattern shuld be used at TP3_EQ. Fr RBR and HBR and ptinally all intermediate rates, the test is perfrmed using a PRBS7 pattern at TP Tj / Rj / Dj Measurements, D10.2, HBR2 nly Tests that the Ttal, Randm, and Deterministic Jitter meet the limits specified in sectin f the edp v1.0 CTG. Perfrmed using the D10.2 pattern at HBR2 bitrate. 3.5 Main Link Frequency Cmpliance Tests that the minimum and maximum Main Link frequency range meets the limits defined in sectin 3.5 f edp CTG v1.0. Perfrmed using the D10.2 pattern at all supprted transfer rates. 3.6 Spread Spectrum Mdulatin Frequency Tests that the SSC frequency meets the limits defined in sectin 3.6 f edp CTG v1.0. Perfrmed using the D10.2 pattern at all supprted transfer rates when SSC is enabled. 3.7 Spread Spectrum Mdulatin Deviatin Tests that the SSC mdulatin deviatin meets the limits defined in sectin 3.7 f edp CTG v1.0. Perfrmed using the D10.2 pattern at all supprted transfer rates when SSC is enabled. AUX Channel EYE Test (CTG 1.0 nly) Verifies that AUX channel amplitude and timing variables are within the cnfrmance limits as defined in edp CTG v Rev B 21

26 QPHY-eDP Variables Bitrate Setup Grup A cmplete edp 1.4 test entails testing at seven different transfer rates, each with a specific CTLE definitin. Yu may wish t test nly a subset f these bitrates. This grup includes variables t facilitate chsing the specific rates t test. Bitrate n (Gb/s) Speed in Gb/s f the respective Bitrate, 1 thugh 7. Bitrate n CTLE CTLE defined fr the respective Bitrate (see table 4.19 f the edp specificatin). Cefficients shuld be entered as a cmma-delimited list f values in the frmat: Zer (MHz), Ple1 (GHz), Ple2 (GHz). Fr example: 460, 0.81, Enable Bitrate n Tests Fr each Bitrate defined, chse t enable (Yes) r disable (N) testing. Highest Supprted Bitrate Select the highest-supprted bitrate fr yur DUT. Intra-pair skew will be tested at this bitrate, prvided that the bitrate is enabled. Lane Setup Grup Perfrming tests n ne lane at a time is ften desirable, especially given the length f time required fr a cmplete test n all fur lanes. These variables define the cnfiguratin fr 1- and 2-lane tests. Primary Lane Under Test Lane tested when testing nly ne lane. If testing n tw lanes, the variable Secnd Lane Under Test defines the secnd lane. This variable isn t used when testing fur lanes, since the script will by default test n all lanes. Number f Lanes Select t test n 1, 2 r 4 lanes. When chsing 1 r 2, cnfigure the Primary Lane Under Test and Secnd Lane Under Test variables. Primary Lane Channels Since the lanes are differential, each lane under test requires tw scillscpe channels. This variable specifies the tw channels t use fr the primary lane under test. Use the default value f C1 and C2 under nrmal circumstances. Secnd Lane Under Test When Number f Lanes = 2, this variable cntains the lane number f the secnd lane t test. Secndary Lane Channels Since the lanes are differential, each lane under test requires tw scillscpe channels. This variable cntains the tw channels t use fr the secnd lane under test. Use the default value f C3 and C4 under nrmal circumstances. 22

27 QPHY-eDP Instructin Manual Swing and Pre-emphasis Level Setup Grup Variables in this grup set the vltage and pre-emphasis values fr the fur Swing and Pre-emphasis levels, 0 thrugh 3. In edp, the values these levels can take are nt fixed, as they are in DisplayPrt. Pre-emphasis n (db) Value in db fr Pre-emphasis level n. Capture Level/Pre-emphasis Tests? Enables/disables screen capture f the Level and Pre-Emphasis tests. Select True t take screen shts f the scillscpe results while testing. Image files are placed in the test reprt. Swing n (mv) Value in mv fr Swing level n. Test <numbers> Tested Swing Level Swing level t measure fr the respective tests. Test <numbers> Tested Pre-emphasis Level Pre-emphasis level t apply fr the respective tests. Save/Recall Wavefrm Grup Variables in this grup cntrl the behavir fr QualiPHY t save and recall wavefrms. QualiPHY-eDP can run ff f a set f stred wavefrms as well as n live wavefrms, s there are variables t determine where files are saved, and whether testing will be perfrmed n live r saved wavefrms. Dem Mde Runs the tests as a demnstratin using saved wavefrms. Test Mde shuld als be set t Use Saved Wavefrms, and wavefrm files placed in the flder [Wavefrm Flder path]\dem. This variable is True nly fr the Dem cnfiguratins. Use Individual Run Flder? Set t Yes t ensure that results frm each run will be saved in a unique flder. Set t N if yu want all files in the same flder. Test Mde Determines whether QualiPHY will Acquire New Data r n Use Saved Data. When using saved data, the wavefrms required fr the selected tests must be present in the flder defined by the Wavefrm Flder variable. If wavefrms are nt fund, yu will be prmpted t lad them manually. Wavefrm Flder Full path t the rt flder fr saving wavefrms when Test Mde is Acquire New Data, r lcatin f saved wavefrms t use when Test Mde is Use Saved Data. This path can be n the scillscpe r n a netwrk drive if the instrument is netwrked. Default is scillscpe D:\Wavefrms\eDP Rev B 23

28 Hst Prgram Cntrl Grup Variables used when running tests in Hst Prgram Cntrl (HPC) mde. See Appendix A: Using Hst Prgram Cntrl Mde fr implementing HPC and the Sync file. Hst Prgram Cntrl Sync Filename Full path t the HPC Sync file (e.g., C:\eDP_sync_file.xml). Use Hst Prgram Cntrl? Enables/disables use f Hst Prgram Cntrl, a simple file-based prtcl that allws a hst cmputer t interact with QualiPHY during a sessin, instead f a human user. When enabled, QualiPHY will write.xml files cntaining requests fr the Hst Prgram using the Hst Prgram Cntrl Sync Filename. Default is N (disabled). Nte: The Hst Prgram shuld cause the Sync file t be deleted when the peratin is cmplete. When this variable is set t Yes, QualiPHY will halt executin until it sees that the Sync file is deleted. De-embedding Setup Grup This grup includes variables t describe the de-embedding cnfiguratin. De-embedding is ptinal, it is nt specified by the edp cmpliance test specificatin. Requires VirtualPrbe. De-embed TPA? Set t Yes t de-embed the TPA-P. Filename/Path fr TPA-P Tuchstne File The cmplete path t the 4-prt S-parameter file used t de-embed the TPA. TPA-P Tuchstne File Prt Mapping Cnfigure this as described in the QualiPHY dialg when setting the variable. The variable is prvided since the mapping f the input t utput prts is arbitrary (e.g., sme users may generate the tuchstne file with prts 1&3 as the input prts, whereas thers may use 1&2 as the inputs). Determine the crrect assignments in rder t perfrm the de-embedding crrectly. De-embed switches? Set t Yes t de-embed the switch and/r cables that rute signals frm the TPA utput t scillscpe input channels. Flder fr Switch De-embedding S2P Files The cmplete path t the flder cntaining the S2P files fr the switch matrix. 24

29 Other Setup Grup The variables in this grup are the remaining variables that apply t all tests. QPHY-eDP Instructin Manual CTLE fr edp 1.0 HBR2 Eye/Jitter Tests Glbal 3-ple CTLE fr HBR2 Eye and Jitter tests. Enter cefficients in the frmat: Zer (MHz), Ple1 (GHz), Ple2 (GHz), Ple3 (GHz). Fr example: 450, 2.7, 4.5, SSC Setting(s) Specifies the state f SSC t use when running tests: Enabled, Disabled, r Bth. The Bth setting will test bth states if SSC can be disabled n the DUT, therwise Bth will retain the enabled state fr thse DUTs where SSC cannt be disabled. Switch Matrix fr 4-Lane Mde Switching matrix t use when perating in 4-Lane mde. Select Mini-Circuits if using Mini-Circuits switch, User if anther switch. If Mini-Circuits is selected, QualiPHY will autmatically cnfigure the switches. If User is selected, QualiPHY will prmpt the user t switch lanes. Nte: This variable is nly used when Number f Lanes is set t 4. QPHY-eDP Limit Sets The default installatin f QPHY-eDP cntains nly ne limit set, called Default, cntaining the limits specified by the VESA edp Cmpliance Test Guideline v1.4. The limits fr each value tested are encded in r cmputed by the script and cannt be changed. T change limits fr internal testing, cpy the Default set and mdify the limits in yur custm set. Select the custm set as desired fr nn-cmpliance testing Rev B 25

30 Appendix A: Using Hst Prgram Cntrl Mde Hst Prgram Cntrl Mde (HPC) is a new feature that allws QualiPHY t be started by a user s hst prgram with a number f arguments. Once running, a simple Sync File prtcl is used by QualiPHY t signal the hst prgram. When the QualiPHY script requires actin frm the hst prgram, it writes a User Sync File t the disk in.xml frmat cntaining several tags. QualiPHY then pauses executin and waits. The hst prgram shuld set the requested DUT parameters r test system cnfiguratin, respnd as necessary, then delete the User Sync File. When QualiPHY sees that the User Sync File is deleted, it cntinues executin. In the QPHY-eDP script, there are three situatins when a Sync File is written ut: 1. When the user hst prgram needs t change which signals are cnnected t the scillscpe (typically utilized in systems invlving an RF switch) 2. When the user hst prgram needs t change the signal type utput frm the DUT (e.g., the signal s character rate) 3. When an issue errr cnditin has ccurred In rder t use Hst Prgram Cntrl Mde, the fllwing cnsideratins shuld be taken int accunt. Preparing Special Cnfiguratin fr Hst Cntrl Mde In QualiPHY, create a custm Cnfiguratin that has the variables cnfigured in the way yu will need them when yu run in Hst Prgram Cntrl Mde. Make sure yu save the cnfiguratin after editing the variables s that it will be available t refer t when yu startup QualiPHY via cmmand line. Variables that need t be cnsidered t run in HPC are: Hst Prgram Cntrl sync filename Definitin: Use t specify sync file path. Default: C:\eDP_sync_file.xml Cmments: Just use default unless cnflict. Use Hst Prgram Cntrl? Definitin: Set t Yes t use the Hst Prgram Cntrl feature, N therwise. Default: N Cmment: When set t Yes, QualiPHY will pause executin after it creates a sync file and while it is waiting fr the sync file t be deleted. 26

31 QPHY-eDP Instructin Manual Hst Prgram Elements Needed t Cntrl the QualiPHY Script Launching QualiPHY (XReplay.exe) The Hst prgram needs t launch the QualiPHY applicatin (the actual prgram is named XReplay.exe) with the fllwing cmmand line, including arguments fr edp: C:\Prgram Files(x86)\LeCry\XReplay\XReplay.exe A R E WIZARD TECH:tecDPORT\eDP CONFIG:HstCntrlTest N:IP Address The path shwn abve is where the XReplay.exe prgram (QualiPHY) is placed by the installer. Arguments are: -A Stps all manual user interactin. (Always use) -R Causes the test script (edp in this case) t be run autmatically. (Always use) -E Autmatically exit when test script is dne executing. (Always use) -WIZARD -TECH:tecDPORT\eDP Required. Sets the technlgy t test, edp in this case. -CONFIG:HstCntrlTest Sets the name f the cnfiguratin that will be used; HstCntrlTest in this case. -N:IP Address IP address f the scillscpe: If QualiPHY is running n the scillscpe, set t lcalhst. If QualiPHY is nt running n the scillscpe, set t Hst ID r IP Address f the scillscpe. Mnitring fr QualiPHY Terminatin The hst prgram needs t cntinuusly test t see if the QualiPHY prcess still exists, t be able t knw when the QualiPHY test script has cmpleted and take apprpriate actin. File Transfer Synchrnizatin The hst synchrnizatin cnsists f three parts: 1. Waiting fr C:\eDP_sync_file.xml (r ther name specified in cnfiguratin) t be written by QualiPHY. 2. Reading the file and perfrming the required actins. 3. Deleting C:\eDP_sync_file.xml in rder t signal QualiPHY that the peratin is cmplete. Renaming the Test Reprt The test reprt that is created by the QualiPHY test script is always created with the same name (fr example, D:\QPHY\Reprts\LeCryReprt.pdf). Fr this reasn, it needs t be renamed after QualiPHY (XReplay.exe) terminates in rder t avid verwriting it the next time QualiPHY is run. Nte: The reprt path is C:\LeCry\QPHY\Reprts if QualiPHY is installed n a remte PC instead f the scillscpe Rev B 27

32 Sample Hst Prgram This sample VBS hst prgram perfrms all the essential tasks invlved in launching and syncing with the QualiPHY edp test script. It is shwn belw and referred t in the text fllwing it. edp example Hst Prgram Cntrl Script n actins Set shell = CreateObject("Wscript.Shell") Set fs = CreateObject("Scripting.FileSystemObject") WScript.Ech "Launching QualiPHY" Set qphyprc = shell.exec("c:\prgram Files (x86)\lecry\xreplay\xreplay.exe -A -R -E -WIZARD -TECH:tecDPORT\eDP -CONFIG:HstCntrlTest -N: ") fname = "C:\eDP_sync_file.xml" D While qphyprc.status = 0 If fs.fileexists(fname) Then result = parse_xml(fname, cnnectinsreq, errrcde, detail, mde, TestPattern, BitRate, SSC, PreEmphasis, Swing, Number_f_Lane) ' ' Perfrm actins based n inf in sync file here. ' Wscript.Ech "Deleting sync file" Lp Else End If fs.deletefile(fname) wscript.sleep(500) WScript.Ech "Renaming reprt" fs.mvefile "D:\QPHY\Reprts\LeCryReprt.pdf", "D:\QPHY\Reprts\QPHY-eDP.pdf" WScript.Ech "Dne!" Functin parse_xml(byval fname, ByRef cnnectinsreq, ByRef errrcde, ByRef detail, ByRef mde, ByRef TestPattern, ByRef BitRate, ByRef SSC, ByRef PreEmphasis, ByRef Swing, ByRef Number_f_Lane) set xmldc=createobject("micrsft.xmldom") xmldc.async="false" xmldc.lad(fname) 'Set querynde = xmldc.selectsinglende(".//signal_type[@cntext = 'General']") Set Nde = xmldc.dcumentelement.selectsinglende("cnnectinsreq") cnnectinsreq = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("errr") errrcde = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("detail") 28

33 detail = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("mde") mde = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("testpattern") TestPattern = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("bitrate") BitRate = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("ssc") SSC = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("preemphasis") PreEmphasis = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("swing") Swing = Nde.text Set Nde = xmldc.dcumentelement.selectsinglende("number_f_lane") Number_f_Lane = Nde.text QPHY-eDP Instructin Manual set xmldc = Nthing parse_xml = 0 End Functin Rev B 29

34 HPC Sync File Sync File Tags The Hst Prgram Cntrl synchrnizatin file includes the fllwing tags: cnnectinsreq: describes the cnnectins that shuld be made. When instructed t, cnnect 2 lanes cnnect /rute the lanes t the scillscpe such that (+) lines are t channels C1 and C3, and (-) lines t C2 and C4. Example: Lane0,Lane1 errr: includes an errr cde. Refer t the detail field fr infrmatin abut the errr. detail: gives additinal infrmatin, especially in situatins where the errr cde is 0, which wuld indicate an issue. Example: N trigger: Trigger timed ut. Is signal present and trigger set crrectly? PreEmphasis: indicates the preemphasis setting t cnfigure (0 thrugh 3). Number_f_Lane: indicates the variable setting fr Number f Lanes. Swing: indicates the swing setting t cnfigure (0 thrugh 3). Bitrate: indicates the bitrate setting t cnfigure in GB/s. PreEmphasis_value: indicates the preemphasis value t cnfigure in db (nly written when needed). Level_value: indicates the swing t be cnfigured, in vlts (nly written when needed). SSC: indicates whether t enable r disable spread spectrum clcking. TestPattern: indicates the test pattern t cnfigure. Sample XML Sync Files Request t change the cnnectins: <TestCnfig> <PreEmphasis/> <Number_f_Lane>4</Number_f_Lane> <Swing/> <detail>change cnnectins</detail> <mde/> <errr>0</errr> <TestPattern/> <cnnectinsreq>lane1,lane2,</cnnectinsreq> <BitRate/> <SSC/> </TestCnfig> 30

35 QPHY-eDP Instructin Manual Request t change signal characteristics: <TestCnfig> <PreEmphasis>Pre-emphasis0</PreEmphasis> <Number_f_Lane>1</Number_f_Lane> <Swing>Swing0</Swing> <detail>signal Attribute Change</detail> <Pre-emphasis0_Value>0.0</Pre-emphasis0_Value> <mde>edp</mde> <errr>0</errr> <Swing0_Value>200</Swing0_Value> <TestPattern>PLTPAT</TestPattern> <cnnectinsreq/> <BitRate>1.62</BitRate> <SSC>Disabled</SSC> Rev B 31

36