Subversion Repositories versatile_fifo

module vfifo_dual_port_ram_dc_sw

  (

   d_a,

   adr_a,

   we_a,

   clk_a,

   q_b,

   adr_b,

   clk_b

   );

   parameter DATA_WIDTH = 32;

   parameter ADDR_WIDTH = 8;

   input [(DATA_WIDTH-1):0]      d_a;

   input [(ADDR_WIDTH-1):0]       adr_a;

   input [(ADDR_WIDTH-1):0]       adr_b;

   input                         we_a;

   output [(DATA_WIDTH-1):0]      q_b;

   input                         clk_a, clk_b;

   reg [(ADDR_WIDTH-1):0]         adr_b_reg;

   reg [DATA_WIDTH-1:0] ram [(1<<ADDR_WIDTH)-1:0] ;

   always @ (posedge clk_a)

   if (we_a)

     ram[adr_a] <= d_a;

   always @ (posedge clk_b)

   adr_b_reg <= adr_b;

   assign q_b = ram[adr_b_reg];

endmodule