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[/] [qaz_libs/] [trunk/] [axi4_stream_lib/] [src/] [axis_eop_mux.sv] - Rev 36

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//////////////////////////////////////////////////////////////////////
////                                                              ////
//// Copyright (C) 2017 Authors and OPENCORES.ORG                 ////
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//// This source file may be used and distributed without         ////
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//// removed from the file and that any derivative work contains  ////
//// the original copyright notice and the associated disclaimer. ////
////                                                              ////
//// This source file is free software; you can redistribute it   ////
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//// Public License as published by the Free Software Foundation; ////
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//// later version.                                               ////
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//// This source is distributed in the hope that it will be       ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
//// PURPOSE.  See the GNU Lesser General Public License for more ////
//// details.                                                     ////
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//////////////////////////////////////////////////////////////////////


module
  axis_eop_mux
  #(
    U_IS_EOP = -1, // set to -1 for tlast, else set to index of tuser
    MA, // select width
    MD = 2 ** MA
  )
  (
    axis_if axis_in[MD-1:0],
    input   [MA-1:0] select,
    output  axis_eop,
    input   aclk,
    input   aresetn
  );

  // --------------------------------------------------------------------
  //
  wire eop_out[MD-1:0];
  genvar j;

  generate
    for(j = 0; j < MD; j++)
      begin: eop_gen
        axis_eop_set #(U_IS_EOP)
          axis_eop_set_i
          (
            .axis_in(axis_in[j]),
            .tready(axis_in[j].tready),
            .tvalid(axis_in[j].tvalid),
            .axis_eop(eop_out[j]),
            .*
          );
      end
  endgenerate


  // --------------------------------------------------------------------
  //
  recursive_mux #(.A(MA), .W(1))
    recursive_mux_i(select, eop_out, axis_eop);


// --------------------------------------------------------------------
//
endmodule

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