d_register.v

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      ////////////////////////////////////////////
     // D_REGISTER.V Version 1.0               //
    // Example of a behavioral description of //
   // a D register.                          //
  // HDL Synthesis Design Guide for FPGAs   //
 // May 1997                               //
////////////////////////////////////////////

module d_register (CLK, DATA, Q);

    input  CLK;
    input  DATA;
    output Q;

    reg    Q;

    always @ (posedge CLK)
    begin: My_D_Reg
   	  Q <= DATA;
    end 

endmodule