class wrap_txn extends uvm_sequence_item;
    function new(string name ="wrap_txn");
        super.new(name)
    endfunction
    rand bit wr_rd;
//write address channel
    rand logic[31:0]awaddr;
    rand bit[3:0]awid;
    rand logic[3:0]awlen;
    rand logic[2:0]awsize;
    rand logic[1:0]awburst;
    rand logic[3:0]awcache;
    rand logic[2:0]awprot;
    rand logic[1:0]awlock;
         logic awvalid;'
         logic awready;
     '
//write data channel
    rand bit[3:0]wid;
     logic[3:0]wstrb;
    rand logic[31:0]wdata[$];
         logic wlast;
         logic wvalid;
         logic wready;
//write response channel
    rand bit[3:0]bid;
         logic[1:0]bresp;
         logic bvalid;
         logic bready;
//read address channel
    rand logic[31:0]araddr;
    rand bit[3:0]arid;
    rand logic[3:0]arlen;
    rand logic[2:0]arsize;
    rand logic[1:0]arburst;
    rand logic[3:0]arcache;
    rand logic[2:0]arprot;
    rand logic[1:0]arlock;
    logic arvalid;
    logic arready;     
//read data channel
    rand bit[3:0]rid;
         logic[31:0]rdata[$];
         logic rlast;
         logic[1:0]rresp; 
         logic rvalid;
         logic rready;

    constraint write_id {awid == wid; wid == bid;}
    constraint read_id {arid == rid;}
    constraint wr_data {wdata.size()==awlen+1;}     
    constraint write_unalign {awaddr%(2**awsize)!=0;}
    constraint wrap {awburst ==2'b10; arburst ==2'b10;} 
    constraint read_unalign {araddr%(2**arsize)!=0;}
    function void post_randomize();
        if(wr_rd = 1)
        begin
        for(int i=1;i<=(2**awsize);i++)
          wstrb[i] = 1;
        end
    endfunction 
    `uvm_object_param_utils_begin(wrap_txn)
        `uvm_field_int(wr_rd,UVM_ALL_ON)
        `uvm_field_int(awaddr,UVM_ALL_ON)
        `uvm_field_int(awid,UVM_ALL_ON)
        `uvm_field_int(awlen,UVM_ALL_ON)
        `uvm_field_int(awsize,UVM_ALL_ON)
        `uvm_field_int(awburst,UVM_ALL_ON)
        `uvm_field_int(awcache,UVM_ALL_ON)
        `uvm_field_int(awprot,UVM_ALL_ON)
        `uvm_field_int(awlock,UVM_ALL_ON)
        `uvm_field_int(awvalid,UVM_ALL_ON)
        `uvm_field_int(awready,UVM_ALL_ON)
        `uvm_field_int(wid,UVM_ALL_ON)
        `uvm_field_queue_int(wdata,UVM_ALL_ON)
        `uvm_field_int(wstrb,UVM_ALL_ON)
        `uvm_field_int(wlast,UVM_ALL_ON)
        `uvm_field_int(wvalid,UVM_ALL_ON)
        `uvm_field_int(wready,UVM_ALL_ON)
        `uvm_field_int(bid,UVM_ALL_ON)
        `uvm_field_int(bresp,UVM_ALL_ON)
        `uvm_field_int(araddr,UVM_ALL_ON)
        `uvm_field_int(arid,UVM_ALL_ON)
        `uvm_field_int(arlen,UVM_ALL_ON)
        `uvm_field_int(arsize,UVM_ALL_ON)
        `uvm_field_int(arburst,UVM_ALL_ON)
        `uvm_field_int(arcache,UVM_ALL_ON)
        `uvm_field_int(arprot,UVM_ALL_ON)
        `uvm_field_int(arlock,UVM_ALL_ON)
        `uvm_field_int(arvalid,UVM_ALL_ON)
        `uvm_field_int(arready,UVM_ALL_ON)
        `uvm_field_int(rid,UVM_ALL_ON)
        `uvm_field_queue_int(rdata,UVM_ALL_ON)
        `uvm_field_int(rlast,UVM_ALL_ON)
        `uvm_field_int(rresp,UVM_ALL_ON)
        `uvm_field_int(rvalid,UVM_ALL_ON)
        `uvm_field_int(rready,UVM_ALL_ON)
    `uvm_object_utils_end
endclass