LogiCORE以太网1000BASE-X PCS / PMA或SGMII  –  Virtex-4嵌入式三模EMAC封装器:RocketIO弹性缓冲器中10 Mb / s的SGMII可能出现上溢或下溢-Altera-Intel社区-FPGA CPLD-ChipDebug