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DC25_PAPER_Track8_NavigatingTheIntricaciesOfPcie_zahrein_V3.pdf

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1、 Navigating the Intricacies of Pcie Gen6 Electrical Performance Bin Yaacob,Zahrein,Altera Kong,Chooi yee,Altera Chng,Claris Jing Wen,Altera Hoang,Thanh,Altera T Kho Boon Hock,Joseph Abstract PCIe Gen 6 marks a significant advancement by introducing Pulse Amplitude Modulation 4(PAM4)signaling,enablin

2、g data rates of up to 64 Gbps.This shift from the traditional Non-Return-to-Zero(NRZ)signaling introduces additional complexities in measurement techniques,distinguishing it from previous PCIe generations.This paper provides a comprehensive examination of IP qualification,with insights from the Elec

3、trical Validation team on calibration procedures,measurement methodologies,and the limitations of transceiver tile IP.Focusing on both Transmitter and Receiver testing for PCIe Gen 6,this study outlines the required compliance with the base PCIe specification 1.Beyond presenting test results,the pap

4、er details the measurement techniques,specific test cases,and the rationale behind conducting these assessments.It further discusses evaluations beyond standard specifications to ensure the robustness of the IP for production readiness.The detailed examination of transmitter and receiver testing hig

5、hlights the critical importance of these test cases in IP qualification.This paper aims to serve as a valuable reference for post-silicon engineers engaged in PCIe Gen 6 physical layer qualification,providing essential guidelines for production-level validation.Author(s)Biography Zahrein Yaacob is a

6、n accomplished electrical validation engineer at Altera,with a deep specialization in validating high-speed I/O that adhere to the most stringent electrical protocol standards.His technical expertise encompasses a wide range of compliance protocols,including OIF-CEI,IEEE,HDMI,DisplayPort,PCI-SIG,and

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1. **PCIe Gen6核心进展**:引入PAM4信号技术,数据速率提升至64Gbps,相比传统NRZ信号更复杂,需新测量方法。 2. **发射端测试**:需在器件引脚直接测量,去嵌入通道损耗;支持SRIS+SSC最坏配置;测试覆盖PVT(工艺/电压/温度)变化,结果显示部分参数(如EIEOS、PS21)需调试优化。 3. **接收端测试**:关键指标包括抖动容限(Jtol,0.05 UI@100MHz SJ)和BER≤1E-6;眼高(EH≥6mVpp)、眼宽(EW≥0.1 UI)校准需满足32.66dB插入损耗;通过8项测试(如动态温度、SSC兼容性、回溯兼容Gen5)。 4. **生产验证**:强调PVT鲁棒性、预设(Q2/Q7)稳定性及向后兼容性,确保IP量产可靠性。
**PAM4测试难点?** **PCIe 6.0校准方法?** **接收器容错极限?**
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