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DocumentDocumentPCIe 5.0/6.0 TRX Test Solution Anritsu VIP Showcase Tektronix Session-AE/Jacky Huang PCI Express 5.0 Specification Status 2 Technology brief · The Design & Compliance problem Physical size of SoCs remain approximately constant, bandwidth increases are primarily achieved by increasing the speed (data rate) of data per pin. Issues related to higher speeds such as loss, cross talk and reflections all become more pronounced as data rates increase For system designers, significant signal integrity experience is required to support the latest networking protocols like 400GbE. 21 SEPTEMBER 2022 3 PCIe 4.0 to 6.0 Base Specification Updates Parameters Data Rate Add-in Card Loss Rx Test (Channel Loss) PCIe 4.0 16 GT/s 8dB @ 8Ghz - (27 to 30) dB @ 8GHz PCIe 5.0 32 GT/s 9.5dB @ 16GHz - (34 to 37) dB @ 16GHz PCIe 6.0 64 GT/s (PAM4) ~ 8.5dB @ 16GHz - (30 to 33) dB @ 16GHz Reference CTLE Reference DFE Eye Width (Rx Test) Eye Height (Rx Test) Lane Margining Refclk Jitter Limits 2 Poles; 1 Zero; DC Gain Range (-6 to -12) dB 4 Poles; 2 Zero; DC Gain Range (-5 to -15) dB 2-Taps 3-Taps 18.75 ps 9.375 ps 15 mV 15 mV Required timing only Required timing/voltage <= 500 fs <= 150 fs Increase in complexity of PCIe specifications 6 Poles; 3 Zero; DC Gain Range (-5 to -15) dB 16-Taps 3.125 ps (top eye) 6 mV (top eye) Required timing/voltage <=100 fs 21 SEPTEMBER 2022 4 PCIe 5.0 Channel Solution Space 5 PCIe 5.0 Specification Snapshot · PCIe 5.0 Base Specification Rev 1.0 Released (Q2 2019) · Describes chip-level behavior on all levels of the stack · PCIe 5.0 CEM Specification Rev 1.0 Released (Q2 2021) · Card electro-mechanical (CEM) defines system and Add-in Card level · PCIe 5.0 PHY Test Specification Rev 1.0 Released (Q1 2022) · Describes electrical compliance tests for Tx, Rx LEQ, Refclk & PLL Bandwidth · PCIe 4.0 All Specifications at Rev 1.0 · Integrators List testing began August 2019 6 PCI Express 5.0 CEM Tx 7 PCIe Gen 5 TX CEM DUAL PORT TESTING REMOVAL CEM workgroup voted in March 2020 to remove the Dual Port Requirement for 5.0 System Tx requirement Workgroup exploring a new 5.0 System refclk jitter compliance test Systems at 32 GT/s will be tested with the same CDR & reference Rx EQ algorithms as 32 GT/s Add-in Cards Only 2 scope channels needed! 21 SEPTEMBER 2022 8 PCI Express CEM Tx Eye Mask 21 SEPTEMBER 2022 9 Tektronix Gen5 Tx Solution Status · PCI Express 5.0 Base Tx Released Q1 2020 · PCI Express 5.0 CEM Tx Released Q1 2021 · Currently Gen5 CEM compliance fixtures available from PCI-SIG 10 PCIe Gen5 Solution Landscape Transmitter Debug DPOJET Plugin for Debug Base CEM Ref CLK SigTest Phoenix TekExpress PCE5 Receiver BASE CEM TP3-TP2 TP3-TP2 JTOL JTOL Rx/Tx LEQ Seasim & SigTest Phoenix Tektronix Rx automation SDLA Complete PCIe Gen5 Portfolio offering Tx + Rx 21 SEPTEMBER 2022 11 Tektronix PCIe Gen5 Solution Offering SUMMARY Transmitter Item BW 33GHz DX/SX Scope HW Arbitrary Function Generator1 Gen5 CEM Test Fixtures 2 TekExpress Gen5 Tx TekExpress Gen4 Tx SW TekExpress Gen1/2/3 Tx DPOJET SDLA Status Available Available Available Available Available Available Available Available Receiver Item 20Gbps BERT3 HW Dual Stack 50GHz Sx Scope Gen5 CEM Test Fixtures 2 Tektronix PCI Express Receiver Test Suite SW DPOJET SDLA 1Optional automated DUT Tx pattern toggling. 2 PCI-SIG Fixture - Available from PCI-SIG 3BERT from Anritsu, link: https://www.anritsu.com/en-US/test-measurement/products/mp1900a 3Error Detector and Clock Recovery requires for the USB3.2 Receiver testing Status Available Available Available Available Available Available 12 Gen 5 Test Fixtures · Official Gen5 CEM Compliance Fixtures · Built by Intel & sold through PCI-SIG · Available to SEG members June 2021 and available to full PCI-SIG members now · RF Connectors MMPX (Huber Suhner) · PCB Meg6 · Tektronix Fixtures · Gen5 CEM NON-OFFICIAL Fixture available for purchase December 2020 · Insertion Loss Spec & Return Loss Mask met · Successfully closed Gen5 CEM Rx Calibration & tested with Gen5 System & AIC · Variable ISI Board · Step sizes of 0.5dB & 16GHz · Rx Calibration Used to dial in 34dB to 37dB channel · Tx Signal Quality Used to dial in loss of link partner (9.5dB AIC or 26.5dB System) · PCI-SIG may decide to use embedding instead of physical ISI 21 SEPTEMBER 2022 13 Transmitter Test Software TEKEXPRESS · Compliance of PCIe Gen1/2/3/4/5 based on PCIe Base and CEM specs · Automated acquisition & waveform management · Automated DUT control · De-embed channel, test fixtures, and cables · User-selectable test selection. · Integrated waveform validation & SigTest (Phoenix) analysis · Comprehensive test reporting 14 Transmitter Software Features · Compliance and advanced analysis modes · User-selectable SigTest version for each PCIe data rate · Reduced & full swing voltage tests · Jitter, voltage, preset, and eye diagram tests via SigTest (Phoenix) · Analysis and debug tools if failures encountered · Comprehensive programmatic interface for automation of tests 15 PCI Express 5.0 32GT/s Rx PG Calibration & Test 16 32GT/s Rx Calibration PCI-SIG Developers Conference 2019 15mV / 0.3UI @ E-12 BER Copyright © 2019 PCI-SIG® - All Rights Reserved 17 Rx Calibration Evolution 8GT/s Rx Calibration · Fixed Channel Loss (package embedded with SigTest) · Knobs Rj/DMI (often results in unrealistic Rj values no bounds) · Only CEM fixtures for sale through PCI-SIG · Seasim (Base) & SigTest (CEM) 16GT/s Rx Calibration · Variable ISI (27 to 30dB) improved test equipment correlation · Knobs Amplitude/Sj/DMI (with allowable ranges defined) · Limit BASE fixtures for sale through PCI-SIG & implementation note in BASE Spec · Seasim/SigTest (Base) & SigTest (CEM) 32GT/s Rx Calibration · Variable ISI (34 to 37dB) · Knobs Same as 16GT/s · Base Rev2 fixtures under development (MMPX coaxial connector) · Seasim (Base) & SigTest EH Extrapolation under investigation & noise impact PCI-SIG Developers Conference 2019 Copyright © 2019 PCI-SIG® - All Rights Reserved 18 PCI Express 5.0 Tx/Rx setup details Configuration details Setup Details 21 SEPTEMBER 2022 19 Tektronix Solution Configuration PCIE GEN5 BASE TX Description Tek P/N QTY Manufacturer Req/Opt Comments Dual Stack 50GHz Sx Scope Attenuator Kit DPS75004SX 1 DPO7RFK2 2 Connector Savers (1.85mm) 103047400 2 TekExpress Gen5 Tx PCE5 1 TekExpress Gen4 Tx PCE4 1 Require for B6:I6PPG output & Scope input PCE3 1 DPOJET Advanced option DJA 1 Serial Data Link Analysis Software SDLA64 1 Cable; 2.92-to-2.92mm, Straight, 1.5ps phase-matched, 40GHz PMCABLE1M 2 pairs Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Swiftbridge Required 50G or better * Required Attenuator kit + DC Blocks Required 1.85mm scope channel input connection Required TekExpress Gen5 Tx Required TekExpress Gen4 Tx Required TekExpress Gen1/2/3 Tx Required DPOJET advanced option Required Serial Data Link Analysis Software Required DUT to replica & replica to scope ** * If ATI channels will be used for refclk measurements they will need Option Key 4 (50XL) ** Additional adaptors may be needed if eval & replica boards are not 2.92mm compatible 21 SEPTEMBER 2022 20 Tektronix Solution Configuration TEST SYSTEM VIEW PCIE GEN5 BASE TX 21 SEPTEMBER 2022 21 Tektronix Solution Configuration PCIE GEN5 CEM TX Description Tek P/N QTY Manufacturer Req/Opt Comments Dual Stack 50GHz Sx Scope DPS75004SX Attenuator Kit DPO7RFK2 Connector Savers (1.85mm) 103047400 TekExpress Gen5 Tx PCE5 TekExpress Gen4 Tx PCE4 TekExpress Gen1/2/3 Tx PCE3 DPOJET Advanced option DJA Serial Data Link Analysis Software SDLA64 Arbitrary Function Generator AFG31252 BNC to SMA Adaptor 015-0572-00 USB 2.0 Cable - Type A to Type B Male; 6ft 174-6053-01 Cable; SMA - SMP cable pair 174-6659-01 Cable; 2.92-to-2.92mm, Straight, 1.5ps phasematched, 40GHz Cable; SMP-to-SMP, Right Angle, 2.5ps phasematched SMP 50 Ohm Terminator PMCABLE1M 174-6658-xx 131-9399-xx ATX Power Supply for System Board Power ATX Power Supply 1 2 2 1 1 1 1 1 1 1 1 1 pair 1 pair 1 pair ** 1 Gen 5 CEM Test Fixtures (with MMPX cables) *** TF-PCIE5-CEM-X16 1 Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Swiftbridge Tektronix Tektronix Corsair Tektronix or PCI-SIG * If ATI channels will be used for refclk measurements they will need Option Key 4 (50XL) ** Quantity depends upon the link width to be tested: x1 = Qty 0, x4 = Qty 6, x8 = Qty 14, x16 = Qty 30 *** Gen5 CEM Test Fixtures are expected to be backwards compatible for Gen1/2/3/4 Tx, if not then Gen4 fixtures may be required **** It is assumed MMPX cables and MMPX to SMA adaptor cables for test fixture connections are included with the fixture kit Required Required Required Required Required Required Required Required Optional Optional Optional Optional Required Required Required Required Required 50G or better * Attenuator kit + DC Blocks 1.85mm scope channel input connection TekExpress Gen5 Tx TekExpress Gen4 Tx TekExpress Gen1/2/3 Tx DPOJET advanced option Serial Data Link Analysis Software For automated DUT Tx pattern toggling For automated DUT Tx pattern toggling Required when using AFG31252 for preset toggling For AFG connection to DUT Rx Lane 0 (toggling) DUT Tx to Scope For Manual DUT Preset Toggling ** Required for System DUT power Tektronix fixtures are not officially approved by PCI-SIG **** 21 SEPTEMBER 2022 22 Tektronix Solution Configuration TEST SYSTEM VIEW PCIE GEN5 CEM TX 21 SEPTEMBER 2022 23 Tektronix Solution Configuration PCIE GEN5 BASE RX Description Tek P/N QTY Manufacturer Req/Opt Comments Dual Stack 50GHz Sx Scope Attenuator Kit Connector Savers (1.85mm) Bit Error Rate Tester (BERT) * Tektronix PCIe Gen5 Rx CEM and BASE Automation SW DPOJET Advanced option Serial Data Link Analysis Software Cable; SMA - SMP cable pair (1000mm) DPS75004SX DPO7RFK2 103047400 ** RXSW-xxx- PCIE5 DJA SDLA64 174-6659-01 1 2 2 1 1 1 1 1 pair Tektronix Tektronix Tektronix 3rd Party Tektronix Tektronix Tektronix Tektronix Required Required Required Required Required Required Required Required 50G or better Attenuator kit + DC Blocks 1.85mm scope channel input connection Configuration provided by 3rd Party ** Available under CAA until 30th Jan 2021 DPOJET advanced option Serial Data Link Analysis Software Refclk connection between DUT & BERT Cable; 2.92-to-2.92mm, Straight, 1.5ps phase- matched, 40GHz (1000 mm) PMCABLE1M 2 pairs Gen 5 Base Rev3 Test Fixtures *** TBD 1 Swiftbridge PCI-SIG Required Required Equipment connections to relica channel & DUT Rev3 is Meg6 material with MMPX connectors **** * Cables required for connection between BERT modules shall be included for the 3rd party vendor ** Configuration for BERT provided by 3rd party vendor *** Gen5 BaseTest Fixtures are not backwards compatible for Gen3 & Gen4 Base Rx **** It is assumed MMPX cables and MMPX to SMA adaptor cables for test fixture connections are included with the fixture kit 21 SEPTEMBER 2022 24 Tektronix Solution Configuration TEST SYSTEM VIEW GEN5 BASE RX CAL + TEST SETUP TP1 Calibration setup TP2 Calibration setup SYS/AIC BER Tests Tektronix Receiver Solution 21 SEPTEMBER 2022 25 Tektronix Solution Configuration PCIE GEN5 CEM RX Description Tek P/N QTY Manufacturer Dual Stack 50GHz Sx Scope DPS75004SX 1 Attenuator Kit DPO7RFK2 2 Connector Savers (1.85mm) 103047400 2 Bit Error Rate Testor (BERT) * ** 1 Tektronix PCIe Gen5 Rx CEM and BASE Automation SW RXSW-xxx-PCIE5 1 DPOJET Advanced option DJA 1 Serial Data Link Analysis Software SDLA64 1 Cable; 2.92-to-2.92mm, Straight, 1.5ps phase-matched, 40GHz (1000 mm) PMCABLE1M 2 pr Cable; 2.92-to-2.92mm, Straight, 1.5ps phase-matched, 500mm, 40GHz (500 mm) 174-6663-01 1 pr Cable; SMA-to-SMA, Right Angle-Right Angle, (500mm) 174-6666-01 2 pr Cable; SMA - SMP cable pair (1000 mm) 174-6659-01 1 pr Power Divider MPR40M 2 Right Angle Male-Female 2.92mm adapter C7035 4 2.92mm Male to 2.92mm Male Adaptor C7049 3 Active Gen5 Redriver (back channel equalization) *** 1 Power USB Power Strip PowerUSB - Basic 1 Gen 5 CEM Test Fixtures **** TF-PCIE5-CEM-X16 1 Tektronix Tektronix Tektronix 3rd Party Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Tektronix Fairview Microwave CentricRF CentricRF Texas Instrument PowerUSB Tektronix or PCI-SIG * Cables required for connection between BERT modules shall be included for the 3rd party vendor ** Configuration for BERT provided by 3rd party vendor *** Another matched pair of cables (e.g. 174-6663-xx) will be required if the Active redriver is used for Rx or Tx LEQ **** Gen5 BaseTest Fixtures are not backwards compatible for Gen3 & Gen4 Base Rx ***** It is assumed MMPX cables and MMPX to SMA adaptor cables for test fixture connections are included with the fixture kit Req/Opt Comments Required Required Required Required Required Required Required 50G or better Attenuator kit + DC Blocks 1.85mm scope channel input connection Configuration provided by 3rd Party ** Available under CAA until 30th Jan 2021 DPOJET advanced option Serial Data Link Analysis Software Required Equipment connection to fixtures and DUT Required Required Required Required Optional Required Optional Optional Required Signal Connection between scope and BERT for Tx LEQ Signal Connection between scope and BERT for Tx LEQ & Trigger Refclk connection between DUT & BERT Split signal from DUT Tx to the scope and Error Detector Cable management Power divider output to scope input High loss back channels (DUT Tx to Error Detector) may need EQ Automate DUT power cycle Tektronix fixtures are not officialy approved by PCI-SIG ***** 21 SEPTEMBER 2022 26 Tektronix Solution Configuration TEST SYSTEM VIEW GEN5 CEM RX CALIBRATION TP1 Calibration TP2 AIC Calibration TP2 SYS Calibration Tektronix Receiver Solution 21 SEPTEMBER 2022 27 Tektronix Solution Configuration TEST SYSTEM VIEW GEN5 CEM RX TEST RX LEQ AIC Tests RX LEQ SYS Tests Tektronix Receiver Solution 21 SEPTEMBER 2022 28 PCI Express 5.0 Refclk Jitter Measurements 29 Reference Clock Phase Jitter Test Ref CLK requirements for PCIe 5.0 have become more stringent and testing methodologies have changed 30 Tektronix PCI Express 5.0 Refclk Solution · Fully Automated Solution TekExpress with Skyworks Clock Jitter Tool · Targeted Support · High Frequency Jitter Measurements (Gen1 to Gen5) · Optional scope Noise removal algorithm · Refclk DC Specifications and AC Requirements · Data Rate Independent Refclk Parameters · Real Time Scopes (>=5G BW to meet CEM Spec.) · DPO70K Scope · MSO64 or MSO64B 31 PCI Express 6.0 Specification Status 32 PCIe 6.0 Specification Snapshot (Q3 2022) · PCIe 6.0 Base Specification Rev 1.0 Released · Describes chip-level behavior on all levels of the stack · PCIe 6.0 CEM Specification Rev 0.5 under development · Card electro-mechanical (CEM) defines system and Add-in Card level · PCIe 6.0 PHY Test Specification Rev 0.5 under development · Describes electrical compliance tests for Tx, Rx LEQ, Refclk & PLL Bandwidth 33 Tektronix PCIe Gen6 Solution Landscape PAMJET (PAM4 Analysis) Transmitter Receiver SDLA Base CEM Ref CLK PAMJET + DPOJET + SDLA TekExpress Automation Base CEM Calibration JTOL Tektronix Rx Automation DPOJET Plugin for Debug Tektronix Innovative Gen6 DSP Tools 21 SEPTEMBER 2022 Released 34 Upcoming / to be announced Early Gen6 Rx Customer Engagements Active PCI-SIG & industry participation Customer engagement PCI- SIG Developer Conference 2022 · First physical DevCon since 2019 and added live stream of presentations. · Joint demonstration with Anritsu, Synopsys & Tektronix on Gen6 Rx! · Electrical Deep session led by Tektronix! : 850 attendees 21 SEPTEMBER 2022 First PCIe 6.0 Rx order from Intel (Folsom)!! · Fastest time to close calibration ~ ½ day · Intel has accepted Anritsu/Tektronix calibration 36 New Technology Support · PCIe Gen 6 (32GBd PAM4) · IEEE802.3ck (53GBd PAM4) · USB Gen4 v2 (80Gbps, PAM3) 21 SEPTEMBER 2022 37 Questions 38