class seq_item extends uvm_sequence_item;
`uvm_object_utils (seq_item)

/////////////////write_address channel///////////////////
 rand bit [3:0] awid;
 rand logic [31:0]awaddr;
 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;
rand logic [31:0]wdata[];
logic [3:0]wstrb;
logic wlast;
logic wvalid;
logic wready;

//////////write_response channel////////////////////////

bit [3:0]bid;
logic [1:0]bresp;
logic bvalid;
logic bready;

/////////////read_address//////////////////////////////

 randc bit [3:0] arid;
 rand logic [31:0]araddr;
 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]awlock;
 logic arvalid;
 logic arready;

//////////////read_data/////////////////////////////
 bit [3:0] rid;
 logic [31:0]rdata[];
 logic [1:0]rresp;
 logic rlast;
 logic rvalid;
 logic rready;

bit wr_rd;
int lower_boundary;
int upper_boundary;

constraint burst{awburst !=2'b11;}
constraint wrap{if(awburst==2'b10) awlen inside {1,3,7,15};}
constraint id {arlen == awlen;arsize == awsize;awid == wid;awid == arid;}
constraint aligned {(awaddr%(2**awsize)==0);}
constraint awburst{awburst inside {0,1,2}; awburst dist {2'b00:/10 , 2'b01:/60 , 2'b10:/30};}
constraint arburst{arburst inside {0,1,2}; arburst dist {2'b00:/10 , 2'b01:/60 , 2'b10:/30};}
constraint 4kb{((awaddr%4096) >=(awaddr+(awlen*awsize)%4096;}


function new(string name = "seq_item");
super.new(name);
endfunction
endclass