tests/asicworld/code_hdl_models_rom_using_case.v

   1 //-----------------------------------------------------
   2 // Design Name : rom_using_case
   3 // File Name   : rom_using_case.v
   4 // Function    : ROM using case
   5 // Coder       : Deepak Kumar Tala
   6 //-----------------------------------------------------
   7 module rom_using_case (
   8 address , // Address input
   9 data    , // Data output
  10 read_en , // Read Enable
  11 ce        // Chip Enable
  12 );
  13 input [3:0] address;
  14 output [7:0] data;
  15 input read_en;
  16 input ce;
  17
  18 reg [7:0] data ;
  19
  20 always @ (ce or read_en or address)
  21 begin
  22   case (address)
  23     0 : data = 10;
  24     1 : data = 55;
  25     2 : data = 244;
  26     3 : data = 0;
  27     4 : data = 1;
  28     5 : data = 8'hff;
  29     6 : data = 8'h11;
  30     7 : data = 8'h1;
  31     8 : data = 8'h10;
  32     9 : data = 8'h0;
  33     10 : data = 8'h10;
  34     11 : data = 8'h15;
  35     12 : data = 8'h60;
  36     13 : data = 8'h90;
  37     14 : data = 8'h70;
  38     15 : data = 8'h90;
  39   endcase
  40 end
  41
  42 endmodule