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/* 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
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