Subversion Repositories fpga-cf

///////////////////////////////////////////////////////////////

// dffhr.v  version 0.1

// 

// Standard parameterizable synchronous reset D-type flipflop

//

// Paul Hartke, phartke@stanford.edu,  Copyright (c)2002

//

// The information and description contained herein is the

// property of Paul Hartke.

//

// Permission is granted for any reuse of this information

// and description as long as this copyright notice is

// preserved.  Modifications may be made as long as this

// notice is preserved.

// This code is made available "as is".  There is no warranty,

// so use it at your own risk.

// Documentation? "Use the source, Luke!"

///////////////////////////////////////////////////////////////

module dffhr (d, r, clk, q);

  parameter WIDTH = 1;

  input                         r;

  input                         clk;

  input         [WIDTH-1:0]      d;

  output        [WIDTH-1:0]      q;

  reg           [WIDTH-1:0]      q;

  always @ (posedge clk)

    if ( r )

      q <= {WIDTH{1'b0}};

    else

      q <= d;

endmodule // dffhr