I want to interface an 8 bit softcore processor with EMAC for TCP/IP communication.
Kindly suggest me which ip core i must go for EMAC controller. Also if possible kindly give me guidance for its reference designs implementing TCP/IP.
If you have the correct license, you could use any of the Xilinx Ethernet IP cores:
Otherwise, use a free MAC or write your own. Have a look at the LWIP reference designs for a TCP/IP example.