Subversion Repositories async_sdm_noc

/*

 Asynchronous SDM NoC

 (C)2011 Wei Song

 Advanced Processor Technologies Group

 Computer Science, the Univ. of Manchester, UK

 Authors:

 Wei Song     wsong83@gmail.com

 License: LGPL 3.0 or later

 Demux for a 1-of-n buffer stage.

 History:

 31/03/2010  Initial version. <wsong83@gmail.com>

 02/06/2011  Clean up for opensource. <wsong83@gmail.com>

 09/06/2011  Make sure the sel pin is considered in the ack process. <wsong83@gmail.com>

*/

module ddmux ( /*AUTOARG*/

   // Outputs

   d_in_a, d_out,

   // Inputs

   d_in, d_sel, d_out_a

   );

   parameter VCN = 2;           // number of output VCs

   parameter DW = 32;           // data width of the input

   input [DW-1:0]   d_in;

   input [VCN-1:0]  d_sel;

   output           d_in_a;

   output [VCN-1:0][DW-1:0]  d_out;

   input  [VCN-1:0]           d_out_a;

   genvar                     i,j;

   /*

   generate

      for (i=0; i<VCN; i++) begin: VCD

         for(j=0; j<DW; j++) begin: D

            c2 C (.a0(d_in[j]), .a1(d_sel[i]), .q(d_out[i][j]));

         end

      end

   endgenerate

    */

   generate

      for (i=0; i<VCN; i++) begin: VCD

         assign d_out[i] = d_sel[i] ? d_in : 0;

      end

   endgenerate

   //assign d_in_a = |d_out_a;

   c2 CACK (.a0(|d_out_a), .a1(|d_sel), .q(d_in_a));

endmodule // ddmux