Subversion Repositories ahb2wishbone

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//*****************************************************************************************************************
// Copyright (c) 2007 TooMuch Semiconductor Solutions Pvt Ltd.
//
//File name             :       ahb_wb_coverage.svh     
//Designer              :       Sanjay kumar    
//Date                  :       3rd Aug'2007            
//Description           :       ahb_wb_coverage:Class to receive monitor packets from publisher(monitor) and check
//                              for Functional coverage.
//Revision              :       1.0
//*****************************************************************************************************************
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////

import avm_pkg::*;
import global::*;

class ahb_wb_coverage extends avm_threaded_component;

analysis_fifo#(monitor_pkt) ap_fifo; // analysis port fifo 
analysis_if#(monitor_pkt) ap_if; // analysis port  interface

// local variables 
logic [AWIDTH-1:0]adr1; 
logic [AWIDTH-1:0]adr2; 
logic [DWIDTH-1:0]dat1; 
logic [DWIDTH-1:0]dat2; 
bit sel,wr;
bit [1:0]mode;
        
// monitor packet
monitor_pkt m_pkt;

// coverage group
covergroup cov_wr;
         write_read: coverpoint wr; // cover read/write
         wr_with_wait_mst: cross  wr,mode;// cover read/write on wait state by master
         wr_with_wait_slv: cross  wr,sel;// cover read/write on wait state by slave     

endgroup

        function new(string name ,avm_named_component parent);
                super.new(name,parent);
                ap_fifo  =new("ap_fifo",this);
                ap_if =null;
                cov_wr=new;
        endfunction

// connecting analysis fifo  to the analysis interface
function void export_connections();
        ap_if = ap_fifo.analysis_export;
endfunction 



                
task run;
        forever
        begin   
                ap_fifo.get(m_pkt); // receiving monitor_pkt from monitor
                // sampling the values of pkt to local variables
                sel=m_pkt.sel; 
                wr=m_pkt.wr;
                mode=m_pkt.mode;
                // sample the coverpoints
                cov_wr.sample();        
                
        end
endtask

endclass