芯粒接口中高效稳定的边带传输系统设计

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引用格式：，，，等.芯粒接口中高效稳定的边带传输系统设计[J].现代电子技术，2025，48（18）：49-56

Abstract：Inthechipletinterface，thesidebandtransmisioncontrol informationisusedtoaccomplishfunctionssuchas registeraccess，adaptivecalibrationofthephysicallayerelectricalcharacteristics，soastoealizerapidestablishmentofdata links.Basedontheanalysisof existingchiplet interfacestandards，auniversal sidebandtransmissionsystem isproposed.The paraleltransceiverportcircuitinsidetheinterfaceisimplementedbymeansof technologiessuchasvirtualcut-through forwarding，roundrobinscheduling，anddynamicalocationofsharedmulti-queue.Intheserialtransmissioncircuitbetween interfaces，thecontrolbytesareusedtomanagethetransmissionofvariable-lengthdatapackets，andsupportsingle-iterror detectionandcorrction，aswellasapidfedbackfrucorrecableerrors.Theexperimentalresultsidcatehat，inomparison withuniversalchiplet interconnectexpress（UCIe），theproposedsidebandtransmissionsystemcanreducethetransmision latencyofthetransceiverportswithintheinterface，anddecreasethedurationofserialtransmisioncircuitsbetweeninterfaces occupiedbyasingledatapacketofdiferentlengthsby2.89%to39.68%.Italsocanpreventtheimpactofsingle-biterrorson theserial transmission.Thedesignedsideband transmissonsystemcanexpeditetheestablishmentprocessofchiplet interconnection while minimizing thepossibilityof high-frequencysignal crosstalk afecting the physicallayersidebands.

Keywords：chipletinterface；sideband transmisionsystem；virtualcut-throughforwarding;roundrobinscheduling; dynamicallocation of shared multi-queue;forward errorcorrection

0 引言

随着芯片制造工艺不断发展，晶体管尺寸逐渐缩小，但先进制程下的芯片正面临着量子隧道效应导致的漏电严重、功耗增加、性能降低等问题。（剩余10065字）