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axi_coverage.sv

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+covergroup write_cg;
+		    option.per_instance=1;	
+			awaddr_cp:   coverpoint  wr_xtn.AWADDR{bins awaddr_bin={[0:'hffff_ffff]};}
+			awburst_cp:   coverpoint wr_xtn.AWBURST{bins awburst_bin[]={[0:2]};}
+			awsize_cp :   coverpoint wr_xtn.AWSIZE{bins awsize_bin[]={[0:2]};}
+			awlen_cp  :   coverpoint wr_xtn.AWLEN{bins awlen_bin={[0:11]};}
+			bresp_cp  :   coverpoint wr_xtn.BRESP{bins bresp_bin={0};}
+ 
+                       WRITE_ADDR_CROSS: cross awburst_cp,awsize_cp,awlen_cp;
+                endgroup
+		
+		covergroup write_cg1 with function sample(int i);
+		   option.per_instance=1;
+			wdata_cp  :   coverpoint wr_xtn.WDATA[i]{bins wdata_bin={[0:'hffff_ffff]};}
+			wstrb_cp  :   coverpoint wr_xtn.WSTRB[i]{bins wstrobe_bin0={4'b1111};
+                                                                 bins wstrobe_bin1={4'b1100};
+                                                                 bins wstrobe_bin2={4'b0011};
+                                                                 bins wstrobe_bin3={4'b1000};
+                                                                 bins wstrobe_bin4={4'b0100};
+                                                                 bins wstrobe_bin5={4'b0010};
+                                                                 bins wstrobe_bin6={4'b0001};
+                                                                 bins wstrobe_bin7={4'b1110};
+                                                                }
+                        WRITE_DATA_CROSS: cross wdata_cp,wstrb_cp;
+                endgroup
+		
+		covergroup read_cg;
+		    option.per_instance=1;
+			araddr_cp:   coverpoint  rd_xtn.ARADDR{bins araddr_bin={[0:'hffff_ffff]};}
+			arburst_cp:   coverpoint rd_xtn.ARBURST{bins arburst_bin[]={[0:2]};}
+			arsize_cp :   coverpoint rd_xtn.ARSIZE{bins arsize_bin[]={[0:2]};}
+			arlen_cp  :   coverpoint rd_xtn.ARLEN{bins arlen_bin={[0:11]};}
+	
+                        READ_ADDR_CROSS: cross arburst_cp,arsize_cp,arlen_cp;
+                endgroup
+		
+		covergroup read_cg1 with function sample(int i);
+		   option.per_instance=1;
+			rdata_cp  :   coverpoint rd_xtn.RDATA[i]{bins rdata_bin={[0:'hffff_ffff]};}
+			rresp_cp  :   coverpoint rd_xtn.RRESP[i]{bins rresp_bin={0};}
+	
+                endgroup