//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//// ////
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//// ////
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//// Copyright (C) 2015 Authors and OPENCORES.ORG ////
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//// Copyright (C) 2015 Authors and OPENCORES.ORG ////
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//// ////
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//// ////
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//// This source file may be used and distributed without ////
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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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//// 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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//// 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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//// the original copyright notice and the associated disclaimer. ////
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//// ////
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//// ////
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//// This source file is free software; you can redistribute it ////
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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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//// 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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//// 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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//// either version 2.1 of the License, or (at your option) any ////
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//// later version. ////
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//// later version. ////
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//// ////
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//// ////
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//// This source is distributed in the hope that it will be ////
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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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//// 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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//// 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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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// details. ////
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//// details. ////
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//// ////
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//// ////
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//// You should have received a copy of the GNU Lesser General ////
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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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//// 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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//// from http://www.opencores.org/lgpl.shtml ////
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//// ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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module
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module
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axis_mux
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axis_mux
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#(
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#(
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N, // data bus width in bytes
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N, // data bus width in bytes
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I = 1, // TID width
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I = 1, // TID width
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D = 1, // TDEST width
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D = 1, // TDEST width
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U = 1, // TUSER width
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U = 1, // TUSER width
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USE_TSTRB = 0, // set to 1 to enable, 0 to disable
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USE_TSTRB = 0, // set to 1 to enable, 0 to disable
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USE_TKEEP = 0 // set to 1 to enable, 0 to disable
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USE_TKEEP = 0 // set to 1 to enable, 0 to disable
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)
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)
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(
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(
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input select,
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input select,
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axis_if axis_in[1:0],
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axis_if axis_in[1:0],
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axis_if axis_out,
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axis_if axis_out,
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input aclk,
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input aclk,
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input aresetn
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input aresetn
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);
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);
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// --------------------------------------------------------------------
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// --------------------------------------------------------------------
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//
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//
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axis_if #(.N(N), .I(I), .D(D), .U(U)) axis_mux_out(.*);
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defparam axis_mux_out.N = N; // why are needed these for recursive modules?
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defparam axis_mux_out.I = I;
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defparam axis_mux_out.D = D;
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defparam axis_mux_out.U = U;
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axis_if axis_mux_out(.*);
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// axis_if #(.N(N), .I(I), .D(D), .U(U)) axis_mux_out(.*);
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assign axis_in[0].tready = select ? 0 : axis_mux_out.tready;
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assign axis_in[0].tready = select ? 0 : axis_mux_out.tready;
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assign axis_in[1].tready = select ? axis_mux_out.tready : 0;
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assign axis_in[1].tready = select ? axis_mux_out.tready : 0;
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assign axis_mux_out.tvalid = select ? axis_in[1].tvalid : axis_in[0].tvalid;
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assign axis_mux_out.tvalid = select ? axis_in[1].tvalid : axis_in[0].tvalid;
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assign axis_mux_out.tdata = select ? axis_in[1].tdata : axis_in[0].tdata;
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assign axis_mux_out.tdata = select ? axis_in[1].tdata : axis_in[0].tdata;
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assign axis_mux_out.tstrb = select ? axis_in[1].tstrb : axis_in[0].tstrb;
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assign axis_mux_out.tstrb = select ? axis_in[1].tstrb : axis_in[0].tstrb;
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assign axis_mux_out.tkeep = select ? axis_in[1].tkeep : axis_in[0].tkeep;
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assign axis_mux_out.tkeep = select ? axis_in[1].tkeep : axis_in[0].tkeep;
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assign axis_mux_out.tlast = select ? axis_in[1].tlast : axis_in[0].tlast;
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assign axis_mux_out.tlast = select ? axis_in[1].tlast : axis_in[0].tlast;
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assign axis_mux_out.tid = select ? axis_in[1].tid : axis_in[0].tid;
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assign axis_mux_out.tid = select ? axis_in[1].tid : axis_in[0].tid;
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assign axis_mux_out.tdest = select ? axis_in[1].tdest : axis_in[0].tdest;
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assign axis_mux_out.tdest = select ? axis_in[1].tdest : axis_in[0].tdest;
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assign axis_mux_out.tuser = select ? axis_in[1].tuser : axis_in[0].tuser;
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assign axis_mux_out.tuser = select ? axis_in[1].tuser : axis_in[0].tuser;
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// --------------------------------------------------------------------
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// --------------------------------------------------------------------
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//
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//
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defparam axis_register_slice_i.N = N; // why are needed these for recursive modules?
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defparam axis_register_slice_i.I = I;
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defparam axis_register_slice_i.D = D;
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defparam axis_register_slice_i.U = U;
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axis_register_slice
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axis_register_slice
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#(
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// #(
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.N(N),
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// .N(N),
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.I(I),
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// .I(I),
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.D(D),
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// .D(D),
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.U(U),
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// .U(U),
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.USE_TSTRB(0),
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// .USE_TSTRB(0),
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.USE_TKEEP(0)
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// .USE_TKEEP(0)
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)
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// )
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axis_register_slice_i
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axis_register_slice_i
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(
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(
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.axis_in(axis_mux_out), // slave
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.axis_in(axis_mux_out), // slave
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.axis_out(axis_out), // master
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.axis_out(axis_out), // master
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.*
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.*
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);
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);
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// --------------------------------------------------------------------
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// --------------------------------------------------------------------
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//
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//
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endmodule
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endmodule
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