Weng P.-YChen C.-HChen JKuo ELin EChu PLiao C.-LMutnury BTZONG-LIN WU2022-04-252022-04-252021https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123202288&doi=10.1109%2fEPEPS51341.2021.9609173&partnerID=40&md5=fd0ebb39cfc8cd485e513d3233874595https://scholars.lib.ntu.edu.tw/handle/123456789/607342Increasing requirement of data transfer between devices makes the communication standards raise the data rate. In PCI-SIG, the encoding scheme has changed from 8b/10b till Gen2 (till 5 Gbps) to 128b/130b encoding @ Gen3 and beyond (8 Gbps and beyond) to achieve the increasing demand for throughput. However, there is no discussion about the eye estimation of 128b/130b-encoded signals. This article discusses the estimation of statistical eye using 128b/130b encoding. It is shown that the encoded eye is similar to unencoded eye. A simple proof is proposed to explain the same. A few test cases are simulated for verifying the theory. In addition, the proposed eye estimation method is scalable to arbitrary encoding schemes. ? 2021 IEEE.Eye diagramFourier analysissignal integrity (SI)statistical eye estimationData transferEncoding (symbols)Signal analysisSignal encodingCommunications standardData-rateEncoded signalsEncoding schemesEye diagramsFourier's analysisNRZ signalsSignal IntegrityStatistical eye estimationconference paper10.1109/EPEPS51341.2021.96091732-s2.0-85123202288