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axi_seq_item.sv

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+class axi_seq_item extends uvm_sequence_item;
+
+//FACTORY REGISTRATION 
+
+	'uvm_object_utils(axi_seq_item);
+
+//WRITE ADDRESS CHANNEL
+	rand logic [31:0] AWADDR;
+	rand logic [3:0]  AWLEN;
+	rand logic [2:0]  AWSIZE;
+	rand logic [1:0]  AWBURST;
+	       bit        AWVALID;
+	       bit        AWREADY;
+               bit [1:0]  AWLOCK;
+	rand logic [2:0]  AWPROT;
+	rand logic [3:0]  AWCACHE;
+	rand   bit [3:0]  AWID;
+
+//WRITE DATA CHANNEL
+          rand bit [3:0]  WID;
+               bit [2:0]  WSTRB;
+        rand logic [7:0]  WDATA;
+	       bit        WVALID;
+	       bit        WREADY;
+	       bit        WLAST;
+//WRITE RESPONSE CHANNEL
+               bit [1:0]  BRESP;
+	       bit        BVALID;
+	       bit        BREADY;
+
+//READ ADDRESS CHANNEL         
+        rand   bit [3:0]  ARID;
+        rand logic [31:0] ARADDR;
+	rand logic [2:0]  ARSIZE;
+	rand logic [1:0]  ARBURST;
+	rand logic [3:0]  ARLEN;
+	rand logic [2:0]  ARPROT;
+	rand logic [3:0]  ARCACHE;
+	rand logic [1:0]  AELOCK;
+	       bit        ARVALID;
+	       bit        ARREADY;
+
+//READ DATA CHANNEL
+	       bit [3:0]  RID;
+	     logic [7:0]  RDATA;
+	       bit [1:0]  RRESP;
+	       bit        RVALID;
+	       bit        RREADY;
+	       bit [3:0]  RSTRB;
+	       bit        RLAST;
+
+
+//==============================================4kb boundary=====================================//
+constraint awaddr_4k{ AWADDR % 4096 + (AWLEN + (1 << AWSIZE) <= 4096;} 
+constraint araddr_4k{ ARADDR % 4096 + (ARLEN + (1 << ARSIZE) <= 4096;} 
+
+//==============================================id must be same for bot read/write operation =====================================//
+constraint ali_w_addr{ AWID==ARID;}
+constraint ali_r_addr{WID==RID;}
+
+//==============================================burst type always not reserved=====================================//
+constraint burst_type{ AWBURST!=2'b11; ARBURST!=2'b11;}
+
+constraint wr_data_size{if(AWBURST==2'b01)
+                           (WDATA inside{[1:((2**AWSIZE)*16)]});}           
+constraint rd_data_size{if(ARBURST==2'b01)
+                           (RDATA inside{[1:((2**ARSIZE)*16)]});} 
+
+
+
+constraint wrap_data{ if(AWBURST==2'b10)
+                    WDATA inside {((2**AWSIZE)*2),((2**AWSIZE)*4),((2**AWSIZE)*8),((2**AWSIZE)*16)};}
+
+	   
+endclass