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[/] [qaz_libs/] [trunk/] [axi4_stream_lib/] [src/] [axis_mux.sv] - Diff between revs 28 and 31

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Rev 28 Rev 31
Line 26... Line 26...
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
 
 
module
module
  axis_mux
  axis_mux
  #(
  #(
    N = 8,          // data bus width in bytes
    N,              // data bus width in bytes
    I = 1,          // TID width
    I = 0,          // TID width
    D = 1,          // TDEST width
    D = 0,          // TDEST width
    U = 1,          // TUSER width
    U = 1,          // TUSER width
    USE_TSTRB = 0,  //  set to 1 to enable, 0 to disable
    USE_TSTRB = 0,  //  set to 1 to enable, 0 to disable
    USE_TKEEP = 0   //  set to 1 to enable, 0 to disable
    USE_TKEEP = 0   //  set to 1 to enable, 0 to disable
  )
  )
  (
  (
    input           mux_select,
    input           mux_select,
    axis_if.slave   axis_0_in,
    axis_if axis_0_in,
    axis_if.slave   axis_1_in,
    axis_if axis_1_in,
    axis_if.master  axis_out,
    axis_if axis_out,
    input           axis_en,
    input           axis_en,
    input           aclk,
    input           aclk,
    input           aresetn
    input           aresetn
  );
  );
 
 
  // --------------------------------------------------------------------
  // --------------------------------------------------------------------
 
// synthesis translate_off
 
  initial
 
  begin
 
    a_tid_unsuported:   assert(I == 0) else $fatal;
 
    a_tdest_unsuported: assert(D == 0) else $fatal;
 
  end
 
// synthesis translate_on
 
// --------------------------------------------------------------------
 
 
 
 
 
  // --------------------------------------------------------------------
  //
  //
  axis_if #(.N(N), .I(I), .D(D), .U(U))
  axis_if #(.N(N), .I(1), .D(1), .U(U))
    axis_mux_out(.*);
    axis_mux_out(.*);
 
 
  assign axis_0_in.tready = mux_select ? 0                    : axis_mux_out.tready;
  assign axis_0_in.tready = mux_select ? 0                    : axis_mux_out.tready;
  assign axis_1_in.tready = mux_select ? axis_mux_out.tready  : 0;
  assign axis_1_in.tready = mux_select ? axis_mux_out.tready  : 0;
 
 

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