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【应用笔记】AN461:在StratixIII和StratixIV器件中实现QDRII+和QDRIISRAM接口设计指南(AN461:DesignGuidelinesforImplementingQDRII+andQDRIISRAMInterfacesinStratixIIIandStratixIVDevices)QDRII+andtheQDRIISRAMdevicesareideallysuitedforbandwidth–intensiveandlow-latencyapplicationssuchascontrollerbuffermemory,look-uptables(LUTs),andlinkedlists.QDRII+andQDRIISRAMmemoryarchitecturefeaturesseparatereadandwriteportsoperatingtwiceperclockcycletodeliveratotaloffourdatatransferspercycle.AN461:DesignGuidelinesforImplementingQDRII+andQDRIISRAMInterfacesinStratixIIIandStratixIVDevicesFebruary2010,v1.2QDRII+andtheQDRIISRAMdevicesareideallysuitedforbandwidth……