t_netlayer.v

具备GMII接口和ARP协议功能的千兆以太网控制器。经过Xilinx SPATAN-III FPGA验证, Verilog描述

module t_netlayer(
		clk,
		rst,
		/******/
		udp_over,
		udp_rd,
		udp_empty,
		udp_headadd,
		udp_length,
		udp_addr,
		udp_data,
		/*******/
		s_des_ip,
		s_sou_ip,
		s_des_port,
		s_sou_port,
		s_sou_add,
		/********/
		a_des_ip,
		a_des_add,
		/********/
		r_des_ip,
		r_des_add,
		r_empty,
		r_rd,
		/********/
		ram_en,
		addr,
		data_out,
		desadd,
		headadd,
		length,
		latch,
		full,
		);
    input clk;
    input rst;
    output udp_over;
    output udp_rd;
    input udp_empty;
    input  udp_headadd;
    input [9:0] udp_length;
    output [10:0] udp_addr;
    input [7:0] udp_data;
    input [31:0] s_des_ip;
    input [31:0] s_sou_ip;
    input [15:0] s_des_port;
    input [15:0] s_sou_port;
    input [47:0] s_sou_add;
    input [31:0] a_des_ip;
    input [47:0] a_des_add;
    input [31:0] r_des_ip;
    input [47:0] r_des_add;
    input r_empty;
    output r_rd;
    
    output ram_en;
    output[10:0] addr;
    output [7:0] data_out;
    output [47:0] desadd;
    output headadd;
    output[15:0] length;
    output latch;
    input full;
  

wire[31:0] u_des_ip;
wire send_udp;
wire udp_over;
wire[7:0] udata_o;
wire udp_ing;

wire send_arp;
wire arp_over;
wire[7:0] adata_o;
wire send_rarp;
wire rarp_over;
wire sarp_ing;

wire[47:0] desadd_o;
wire[7:0] data_o;
wire sending ;

pack_control  uu0   (
                    .clk(clk),
                    .rst(rst),
                    /**user setting**/
                    .s_des_ip(s_des_ip),
                    /**the data info fifo**/
                    .u_empty(udp_empty),
                    /***the udp destination ip and mac add****/
                    .a_des_add(a_des_add),
                    .a_des_ip(a_des_ip),
                    /****the arp request host's add and ip fifo*******
                    ********need to reply*****************************/  
                    .r_empty(r_empty),
                    .r_des_add(r_des_add),                 
                    /*****the interface to the udp****/
                    .u_des_ip(u_des_ip),
                    .send_udp(send_udp),
                    .udp_over(udp_over),
                    .udata_i(udata_o),
                    .udp_ing(udp_ing),
                    /****the interface to the arp and rarp***/
                    .send_arp(send_arp),
                    .arp_over(arp_over),
                    .adata_i(adata_o),
                    .send_rarp(send_rarp),
                    .rarp_over(rarp_over),
                    .sarp_ing(sarp_ing),
                    /***the interface from the mac sublayer***/
                    .full(full),     
                    .desadd_o(desadd_o),
                    .data_o(data_o),
                    .send_ing (sending)
                    );
                    
                    
udp           uu1  (
                .clk(clk),
		    .rst(rst),
		    .data_i(udp_data),
		    .addr(udp_addr),
		    .info_en(udp_rd),
		    .length(udp_length),
		    .headadd(udp_headadd),
		    .des_ip(u_des_ip),
		    .sou_ip(s_sou_ip),
		    .des_port(s_des_port),
		    .sou_port(s_sou_port),
		    .send_udp(send_udp),
		    .udp_over(udp_over),
		    .udp_ing(udp_ing),
		    .udata_o(udata_o)
		    );
		    
arp          uu2   (
                    .clk(clk),
           	    .rst(rst),
           /****the interfrace to mac sublayer****/
           	    .data_o(adata_o),
           	    .full(full),
           /****the interface with the arp request receiver****/
           	    .r_desmac_i(r_des_add),          
           	    .r_desip_i(r_des_ip),
           	    .r_rd(r_rd),
           /*********/
           	    .a_desip_i(s_des_ip),              
           /*********/
           	    .soumac_i(s_sou_add),
           	    .souip_i(s_sou_ip),
           /*********/
           	    .send_arp(send_arp),
           	    .send_rarp(send_rarp),
           	    .sending(sarp_ing),
           	    .arp_ing(),
           	    .rarp_ing(),
           	    .arp_over(arp_over),
           	    .rarp_over(rarp_over)
           	    );
           	    
cache_control uu3   (
                     .clk(clk),
                     .rst(rst),
                     .sending(sending),
                     .data_i(data_o),
                     .desadd_i(desadd_o),                    
                     .full_o(),
                     /*******/
                     .headadd_o(headadd),
                     .length_o(length),
                     .desadd_o(desadd),
                     .latch_o(latch),
                     .full_i(full),
                     /*****/
                     .addr_o(addr),
                     .data_o(data_out),
                     .ram_en(ram_en)
                     ); 
 

endmodule