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[/] [qaz_libs/] [trunk/] [axi4_stream_lib/] [src/] [axis_eop_mux.sv] - Blame information for rev 36

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1 36 qaztronic
//////////////////////////////////////////////////////////////////////
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////                                                              ////
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//// Copyright (C) 2017 Authors and OPENCORES.ORG                 ////
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////                                                              ////
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//// This source file may be used and distributed without         ////
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//// restriction provided that this copyright statement is not    ////
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//// removed from the file and that any derivative work contains  ////
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//// the original copyright notice and the associated disclaimer. ////
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////                                                              ////
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//// This source file is free software; you can redistribute it   ////
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//// and/or modify it under the terms of the GNU Lesser General   ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any   ////
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//// later version.                                               ////
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////                                                              ////
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//// This source is distributed in the hope that it will be       ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
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//// PURPOSE.  See the GNU Lesser General Public License for more ////
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//// details.                                                     ////
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////                                                              ////
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//// You should have received a copy of the GNU Lesser General    ////
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//// Public License along with this source; if not, download it   ////
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//// from http://www.opencores.org/lgpl.shtml                     ////
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////                                                              ////
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//////////////////////////////////////////////////////////////////////
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module
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  axis_eop_mux
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  #(
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    U_IS_EOP = -1, // set to -1 for tlast, else set to index of tuser
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    MA, // select width
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    MD = 2 ** MA
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  )
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  (
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    axis_if axis_in[MD-1:0],
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    input   [MA-1:0] select,
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    output  axis_eop,
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    input   aclk,
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    input   aresetn
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  );
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  // --------------------------------------------------------------------
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  //
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  wire eop_out[MD-1:0];
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  genvar j;
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  generate
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    for(j = 0; j < MD; j++)
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      begin: eop_gen
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        axis_eop_set #(U_IS_EOP)
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          axis_eop_set_i
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          (
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            .axis_in(axis_in[j]),
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            .tready(axis_in[j].tready),
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            .tvalid(axis_in[j].tvalid),
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            .axis_eop(eop_out[j]),
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            .*
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          );
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      end
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  endgenerate
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  // --------------------------------------------------------------------
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  //
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  recursive_mux #(.A(MA), .W(1))
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    recursive_mux_i(select, eop_out, axis_eop);
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// --------------------------------------------------------------------
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//
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endmodule
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