Design of GMII and RGMII Interface Conversion IP for Ethernet MAC Controller
This paper describes that RGMII interface is the reduced GMII interface,which solves the problems of wiring complex and high power consumption caused by too many GMII signal lines.Firstly,the IEEE802.3 GMII interface standard in Gigabit Ethernet MAC controller and RGMII interface are studied;The implementation schemes of two interface conversion in Gigabit Ethernet MAC controller are described,including RGMII normal and delay mode;and The function is realized by Verilog HDL language and is correct by verified through NC-SIM simulation and FPGA development board test after Quartus-II implementation.Finally,the RGMII interface is applied to a switching chip.On the function development board of the switching chip,two PCs realize data correct transmission through RGMII interface and Marvell 88E1145.Through these processes,a standard interface transformation IP is formed,which can be directly applied to other products.
万方数据
维普
