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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
 
 Asynchronous VC router.
 
 History:
 05/04/2010  Initial version. <wsong83@gmail.com>
 02/06/2011  Clean up for opensource. <wsong83@gmail.com>
 
*/
 
module router (/*AUTOARG*/
   // Outputs
   sia, wia, nia, eia, lia, sic, wic, nic, eic, lic, so0, so1, so2,
   so3, wo0, wo1, wo2, wo3, no0, no1, no2, no3, eo0, eo1, eo2, eo3,
   lo0, lo1, lo2, lo3, soft, woft, noft, eoft, loft, sovc, wovc, novc,
   eovc, lovc, soca, woca, noca, eoca, loca,
   // Inputs
   si0, si1, si2, si3, wi0, wi1, wi2, wi3, ni0, ni1, ni2, ni3, ei0,
   ei1, ei2, ei3, li0, li1, li2, li3, sift, wift, nift, eift, lift,
   sivc, wivc, nivc, eivc, livc, sica, wica, nica, eica, lica, soa,
   woa, noa, eoa, loa, soc, woc, noc, eoc, loc, addrx, addry, rst_n
   );
 
   parameter VCN = 2;           // number of VCs per direction
   parameter DW = 32;           // data width of an input port
   parameter PD = 1;            // the depth of a input VC buffer
   parameter FT = 3;            // the number of flit types, currently 3 (HD, DATA, TAIL)
 
   parameter FCPD = PD;
   parameter SCN = DW/2;
 
   // input ports
   input [SCN-1:0]    si0, si1, si2, si3;
   input [SCN-1:0]    wi0, wi1, wi2, wi3;
   input [SCN-1:0]    ni0, ni1, ni2, ni3;
   input [SCN-1:0]    ei0, ei1, ei2, ei3;
   input [SCN-1:0]    li0, li1, li2, li3;
   input [FT-1:0]     sift, wift, nift, eift, lift;
   input [VCN-1:0]    sivc, wivc, nivc, eivc, livc;
   output             sia, wia, nia, eia, lia;
   output [VCN-1:0]   sic, wic, nic, eic, lic;
   input [VCN-1:0]    sica, wica, nica, eica, lica;
 
   // output ports
   output [SCN-1:0]   so0, so1, so2, so3;
   output [SCN-1:0]   wo0, wo1, wo2, wo3;
   output [SCN-1:0]   no0, no1, no2, no3;
   output [SCN-1:0]   eo0, eo1, eo2, eo3;
   output [SCN-1:0]   lo0, lo1, lo2, lo3;
   output [FT-1:0]    soft, woft, noft, eoft, loft;
   output [VCN-1:0]   sovc, wovc, novc, eovc, lovc;
   input              soa, woa, noa, eoa, loa;
   input [VCN-1:0]    soc, woc, noc, eoc, loc;
   output [VCN-1:0]   soca, woca, noca, eoca, loca;
 
   // local address, in 1-of-4 format
   input [7:0]         addrx, addry;
   // active-low reset
   input              rst_n;
 
   //----------------------------------
   // input to crossbar
   wire [VCN-1:0][SCN-1:0]     s2cb0, s2cb1, s2cb2, s2cb3;
   wire [VCN-1:0][SCN-1:0]     w2cb0, w2cb1, w2cb2, w2cb3;
   wire [VCN-1:0][SCN-1:0]     n2cb0, n2cb1, n2cb2, n2cb3;
   wire [VCN-1:0][SCN-1:0]     e2cb0, e2cb1, e2cb2, e2cb3;
   wire [VCN-1:0][SCN-1:0]     l2cb0, l2cb1, l2cb2, l2cb3;
   wire [VCN-1:0][FT-1:0]      s2cbt, w2cbt, n2cbt, e2cbt, l2cbt;
   wire [VCN-1:0][3:0]           s2cbrtg, n2cbrtg, l2cbrtg;
   wire [VCN-1:0][1:0]           w2cbrtg, e2cbrtg;
   wire [VCN-1:0]               s2cba, w2cba, n2cba, e2cba, l2cba;
 
   // VC requests
   wire [VCN-1:0][3:0] svcr, nvcr, lvcr;
   wire [VCN-1:0]      svcra, nvcra, lvcra;
   wire [VCN-1:0][1:0] wvcr, evcr;
   wire [VCN-1:0]      wvcra, evcra;
 
   // SW requests
   wire [VCN-1:0][1:0] siswr, wiswr, niswr, eiswr, liswr;
   wire [VCN-1:0][3:0] siswrt, niswrt, liswrt;
   wire [VCN-1:0][1:0] wiswrt, eiswrt;
 
   // crossbar to output
   wire [SCN-1:0]      cb2s0, cb2s1, cb2s2, cb2s3;
   wire [SCN-1:0]      cb2w0, cb2w1, cb2w2, cb2w3;
   wire [SCN-1:0]      cb2n0, cb2n1, cb2n2, cb2n3;
   wire [SCN-1:0]      cb2e0, cb2e1, cb2e2, cb2e3;
   wire [SCN-1:0]      cb2l0, cb2l1, cb2l2, cb2l3;
   wire [FT-1:0]       cb2st, cb2wt, cb2nt, cb2et, cb2lt;
   wire                cb2sa, cb2wa, cb2na, cb2ea, cb2la;
 
   // SW requests to VC arbiters in output buffers
   wire [VCN-1:0]      soswr, woswr, noswr, eoswr, loswr;
   wire [VCN-1:0]      soswa, woswa, noswa, eoswa, loswa;
 
   //-------------------------------------
   // south input buffer
   inpbuf #(.DW(DW), .VCN(VCN), .DIR(0), .SN(4), .PD(PD), .FT(FT))
   SIB (
        .dia   ( sia     ),
        .cor   ( sic     ),
        .do0   ( s2cb0   ),
        .do1   ( s2cb1   ),
        .do2   ( s2cb2   ),
        .do3   ( s2cb3   ),
        .dot   ( s2cbt   ),
        .dortg ( s2cbrtg ),
        .vcr   ( svcr    ),
        .swr   ( siswr   ),
        .di0   ( si0     ),
        .di1   ( si1     ),
        .di2   ( si2     ),
        .di3   ( si3     ),
        .dit   ( sift    ),
        .divc  ( sivc    ),
        .coa   ( sica    ),
        .doa   ( s2cba   ),
        .vcra  ( svcra   ),
        .swrt  ( siswrt  ),
        .addrx ( addrx   ),
        .addry ( addry   ),
        .rst_n ( rst_n   )
        );
 
   // west input buffer
   inpbuf #(.DW(DW), .VCN(VCN), .DIR(1), .SN(2), .PD(PD), .FT(FT))
   WIB (
        .dia   ( wia     ),
        .cor   ( wic     ),
        .do0   ( w2cb0   ),
        .do1   ( w2cb1   ),
        .do2   ( w2cb2   ),
        .do3   ( w2cb3   ),
        .dot   ( w2cbt   ),
        .dortg ( w2cbrtg ),
        .vcr   ( wvcr    ),
        .swr   ( wiswr   ),
        .di0   ( wi0     ),
        .di1   ( wi1     ),
        .di2   ( wi2     ),
        .di3   ( wi3     ),
        .dit   ( wift    ),
        .divc  ( wivc    ),
        .coa   ( wica    ),
        .doa   ( w2cba   ),
        .vcra  ( wvcra   ),
        .swrt  ( wiswrt  ),
        .addrx ( addrx   ),
        .addry ( addry   ),
        .rst_n ( rst_n   )
        );
 
   // north input buffer
   inpbuf #(.DW(DW), .VCN(VCN), .DIR(2), .SN(4), .PD(PD), .FT(FT))
   NIB (
        .dia   ( nia     ),
        .cor   ( nic     ),
        .do0   ( n2cb0   ),
        .do1   ( n2cb1   ),
        .do2   ( n2cb2   ),
        .do3   ( n2cb3   ),
        .dot   ( n2cbt   ),
        .dortg ( n2cbrtg ),
        .vcr   ( nvcr    ),
        .swr   ( niswr   ),
        .di0   ( ni0     ),
        .di1   ( ni1     ),
        .di2   ( ni2     ),
        .di3   ( ni3     ),
        .dit   ( nift    ),
        .divc  ( nivc    ),
        .coa   ( nica    ),
        .doa   ( n2cba   ),
        .vcra  ( nvcra   ),
        .swrt  ( niswrt  ),
        .addrx ( addrx   ),
        .addry ( addry   ),
        .rst_n ( rst_n   )
        );
 
   // east input buffer
   inpbuf #(.DW(DW), .VCN(VCN), .DIR(3), .SN(2), .PD(PD), .FT(FT))
   EIB (
        .dia   ( eia     ),
        .cor   ( eic     ),
        .do0   ( e2cb0   ),
        .do1   ( e2cb1   ),
        .do2   ( e2cb2   ),
        .do3   ( e2cb3   ),
        .dot   ( e2cbt   ),
        .dortg ( e2cbrtg ),
        .vcr   ( evcr    ),
        .swr   ( eiswr   ),
        .di0   ( ei0     ),
        .di1   ( ei1     ),
        .di2   ( ei2     ),
        .di3   ( ei3     ),
        .dit   ( eift    ),
        .divc  ( eivc    ),
        .coa   ( eica    ),
        .doa   ( e2cba   ),
        .vcra  ( evcra   ),
        .swrt  ( eiswrt  ),
        .addrx ( addrx   ),
        .addry ( addry   ),
        .rst_n ( rst_n   )
        );
 
   // local input buffer
   inpbuf #(.DW(DW), .VCN(VCN), .DIR(4), .SN(4), .PD(PD), .FT(FT))
   LIB (
        .dia   ( lia     ),
        .cor   ( lic     ),
        .do0   ( l2cb0   ),
        .do1   ( l2cb1   ),
        .do2   ( l2cb2   ),
        .do3   ( l2cb3   ),
        .dot   ( l2cbt   ),
        .dortg ( l2cbrtg ),
        .vcr   ( lvcr    ),
        .swr   ( liswr   ),
        .di0   ( li0     ),
        .di1   ( li1     ),
        .di2   ( li2     ),
        .di3   ( li3     ),
        .dit   ( lift    ),
        .divc  ( livc    ),
        .coa   ( lica    ),
        .doa   ( l2cba   ),
        .vcra  ( lvcra   ),
        .swrt  ( liswrt  ),
        .addrx ( addrx   ),
        .addry ( addry   ),
        .rst_n ( rst_n   )
        );
 
   // south output buffer
   outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))
   SOB (
        .dia   ( cb2sa   ),
        .do0   ( so0     ),
        .do1   ( so1     ),
        .do2   ( so2     ),
        .do3   ( so3     ),
        .dot   ( soft    ),
        .dovc  ( sovc    ),
        .afc   ( soca    ),
        .vca   ( soswa   ),
        .di0   ( cb2s0   ),
        .di1   ( cb2s1   ),
        .di2   ( cb2s2   ),
        .di3   ( cb2s3   ),
        .dit   ( cb2st   ),
        .doa   ( soa     ),
        .credit( soc     ),
        .vcr   ( soswr   ),
        .rst_n ( rst_n   )
        );
 
   // west output buffer
   outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))
   WOB (
        .dia   ( cb2wa   ),
        .do0   ( wo0     ),
        .do1   ( wo1     ),
        .do2   ( wo2     ),
        .do3   ( wo3     ),
        .dot   ( woft    ),
        .dovc  ( wovc    ),
        .afc   ( woca    ),
        .vca   ( woswa   ),
        .di0   ( cb2w0   ),
        .di1   ( cb2w1   ),
        .di2   ( cb2w2   ),
        .di3   ( cb2w3   ),
        .dit   ( cb2wt   ),
        .doa   ( woa     ),
        .credit( woc     ),
        .vcr   ( woswr   ),
        .rst_n ( rst_n   )
        );
 
   // north output buffer
   outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))
   NOB (
        .dia   ( cb2na   ),
        .do0   ( no0     ),
        .do1   ( no1     ),
        .do2   ( no2     ),
        .do3   ( no3     ),
        .dot   ( noft    ),
        .dovc  ( novc    ),
        .afc   ( noca    ),
        .vca   ( noswa   ),
        .di0   ( cb2n0   ),
        .di1   ( cb2n1   ),
        .di2   ( cb2n2   ),
        .di3   ( cb2n3   ),
        .dit   ( cb2nt   ),
        .doa   ( noa     ),
        .credit( noc     ),
        .vcr   ( noswr   ),
        .rst_n ( rst_n   )
        );
 
   // east output buffer
   outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))
   EOB (
        .dia   ( cb2ea   ),
        .do0   ( eo0     ),
        .do1   ( eo1     ),
        .do2   ( eo2     ),
        .do3   ( eo3     ),
        .dot   ( eoft    ),
        .dovc  ( eovc    ),
        .afc   ( eoca    ),
        .vca   ( eoswa   ),
        .di0   ( cb2e0   ),
        .di1   ( cb2e1   ),
        .di2   ( cb2e2   ),
        .di3   ( cb2e3   ),
        .dit   ( cb2et   ),
        .doa   ( eoa     ),
        .credit( eoc     ),
        .vcr   ( eoswr   ),
        .rst_n ( rst_n   )
        );
 
   // east output buffer
   outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))
   LOB (
        .dia   ( cb2la   ),
        .do0   ( lo0     ),
        .do1   ( lo1     ),
        .do2   ( lo2     ),
        .do3   ( lo3     ),
        .dot   ( loft    ),
        .dovc  ( lovc    ),
        .afc   ( loca    ),
        .vca   ( loswa   ),
        .di0   ( cb2l0   ),
        .di1   ( cb2l1   ),
        .di2   ( cb2l2   ),
        .di3   ( cb2l3   ),
        .dit   ( cb2lt   ),
        .doa   ( loa     ),
        .credit( loc     ),
        .vcr   ( loswr   ),
        .rst_n ( rst_n   )
        );
 
   // VC allocator
   vcalloc #(.VCN(VCN))
   ALLOC (
          .svcra   ( svcra   ),
          .wvcra   ( wvcra   ),
          .nvcra   ( nvcra   ),
          .evcra   ( evcra   ),
          .lvcra   ( lvcra   ),
          .sswa    ( siswrt  ),
          .wswa    ( wiswrt  ),
          .nswa    ( niswrt  ),
          .eswa    ( eiswrt  ),
          .lswa    ( liswrt  ),
          .sosr    ( soswr   ),
          .wosr    ( woswr   ),
          .nosr    ( noswr   ),
          .eosr    ( eoswr   ),
          .losr    ( loswr   ),
          .svcr    ( svcr    ),
          .nvcr    ( nvcr    ),
          .lvcr    ( lvcr    ),
          .wvcr    ( wvcr    ),
          .evcr    ( evcr    ),
          .sswr    ( siswr   ),
          .wswr    ( wiswr   ),
          .nswr    ( niswr   ),
          .eswr    ( eiswr   ),
          .lswr    ( liswr   ),
          .sosa    ( soswa   ),
          .wosa    ( woswa   ),
          .nosa    ( noswa   ),
          .eosa    ( eoswa   ),
          .losa    ( loswa   ),
          .rst_n   ( rst_n   )
          );
 
   // crossbar
   dcb_vc #(.DW(DW), .FT(FT), .VCN(VCN))
   CB (
       .dia   ( {l2cba, e2cba, n2cba, w2cba, s2cba} ),
       .do0   ( {cb2l0, cb2e0, cb2n0, cb2w0, cb2s0} ),
       .do1   ( {cb2l1, cb2e1, cb2n1, cb2w1, cb2s1} ),
       .do2   ( {cb2l2, cb2e2, cb2n2, cb2w2, cb2s2} ),
       .do3   ( {cb2l3, cb2e3, cb2n3, cb2w3, cb2s3} ),
       .dot   ( {cb2lt, cb2et, cb2nt, cb2wt, cb2st} ),
       .di0   ( {l2cb0, e2cb0, n2cb0, w2cb0, s2cb0} ),
       .di1   ( {l2cb1, e2cb1, n2cb1, w2cb1, s2cb1} ),
       .di2   ( {l2cb2, e2cb2, n2cb2, w2cb2, s2cb2} ),
       .di3   ( {l2cb3, e2cb3, n2cb3, w2cb3, s2cb3} ),
       .dit   ( {l2cbt, e2cbt, n2cbt, w2cbt, s2cbt} ),
       .srtg  ( s2cbrtg                             ),
       .nrtg  ( n2cbrtg                             ),
       .lrtg  ( l2cbrtg                             ),
       .wrtg  ( w2cbrtg                             ),
       .ertg  ( e2cbrtg                             ),
       .doa   ( {cb2la, cb2ea, cb2na, cb2wa, cb2sa} )
       );
 
endmodule // router
 
 
 
 

Line No.	Rev	Author	Line
1	40	wsong0210	`/*`
2			`Asynchronous SDM NoC`
3			`(C)2011 Wei Song`
4			`Advanced Processor Technologies Group`
5			`Computer Science, the Univ. of Manchester, UK`
6
7			`Authors:`
8			`Wei Song wsong83@gmail.com`
9
10			`License: LGPL 3.0 or later`
11
12			`Asynchronous VC router.`
13
14			`History:`
15			`05/04/2010 Initial version. <wsong83@gmail.com>`
16			`02/06/2011 Clean up for opensource. <wsong83@gmail.com>`
17
18			`*/`
19
20			`module router (/AUTOARG/`
21			`// Outputs`
22			`sia, wia, nia, eia, lia, sic, wic, nic, eic, lic, so0, so1, so2,`
23			`so3, wo0, wo1, wo2, wo3, no0, no1, no2, no3, eo0, eo1, eo2, eo3,`
24			`lo0, lo1, lo2, lo3, soft, woft, noft, eoft, loft, sovc, wovc, novc,`
25			`eovc, lovc, soca, woca, noca, eoca, loca,`
26			`// Inputs`
27			`si0, si1, si2, si3, wi0, wi1, wi2, wi3, ni0, ni1, ni2, ni3, ei0,`
28			`ei1, ei2, ei3, li0, li1, li2, li3, sift, wift, nift, eift, lift,`
29			`sivc, wivc, nivc, eivc, livc, sica, wica, nica, eica, lica, soa,`
30	45	wsong0210	`woa, noa, eoa, loa, soc, woc, noc, eoc, loc, addrx, addry, rst_n`
31	40	wsong0210	`);`
32
33			`parameter VCN = 2; // number of VCs per direction`
34			`parameter DW = 32; // data width of an input port`
35			`parameter PD = 1; // the depth of a input VC buffer`
36			`parameter FT = 3; // the number of flit types, currently 3 (HD, DATA, TAIL)`
37
38			`parameter FCPD = PD;`
39			`parameter SCN = DW/2;`
40
41			`// input ports`
42			`input [SCN-1:0] si0, si1, si2, si3;`
43			`input [SCN-1:0] wi0, wi1, wi2, wi3;`
44			`input [SCN-1:0] ni0, ni1, ni2, ni3;`
45			`input [SCN-1:0] ei0, ei1, ei2, ei3;`
46			`input [SCN-1:0] li0, li1, li2, li3;`
47			`input [FT-1:0] sift, wift, nift, eift, lift;`
48			`input [VCN-1:0] sivc, wivc, nivc, eivc, livc;`
49			`output sia, wia, nia, eia, lia;`
50			`output [VCN-1:0] sic, wic, nic, eic, lic;`
51			`input [VCN-1:0] sica, wica, nica, eica, lica;`
52
53			`// output ports`
54			`output [SCN-1:0] so0, so1, so2, so3;`
55			`output [SCN-1:0] wo0, wo1, wo2, wo3;`
56			`output [SCN-1:0] no0, no1, no2, no3;`
57			`output [SCN-1:0] eo0, eo1, eo2, eo3;`
58			`output [SCN-1:0] lo0, lo1, lo2, lo3;`
59			`output [FT-1:0] soft, woft, noft, eoft, loft;`
60			`output [VCN-1:0] sovc, wovc, novc, eovc, lovc;`
61			`input soa, woa, noa, eoa, loa;`
62			`input [VCN-1:0] soc, woc, noc, eoc, loc;`
63			`output [VCN-1:0] soca, woca, noca, eoca, loca;`
64
65			`// local address, in 1-of-4 format`
66			`input [7:0] addrx, addry;`
67			`// active-low reset`
68	45	wsong0210	`input rst_n;`
69	40	wsong0210
70			`//----------------------------------`
71			`// input to crossbar`
72			`wire [VCN-1:0][SCN-1:0] s2cb0, s2cb1, s2cb2, s2cb3;`
73			`wire [VCN-1:0][SCN-1:0] w2cb0, w2cb1, w2cb2, w2cb3;`
74			`wire [VCN-1:0][SCN-1:0] n2cb0, n2cb1, n2cb2, n2cb3;`
75			`wire [VCN-1:0][SCN-1:0] e2cb0, e2cb1, e2cb2, e2cb3;`
76			`wire [VCN-1:0][SCN-1:0] l2cb0, l2cb1, l2cb2, l2cb3;`
77			`wire [VCN-1:0][FT-1:0] s2cbt, w2cbt, n2cbt, e2cbt, l2cbt;`
78			`wire [VCN-1:0][3:0] s2cbrtg, n2cbrtg, l2cbrtg;`
79			`wire [VCN-1:0][1:0] w2cbrtg, e2cbrtg;`
80			`wire [VCN-1:0] s2cba, w2cba, n2cba, e2cba, l2cba;`
81
82			`// VC requests`
83			`wire [VCN-1:0][3:0] svcr, nvcr, lvcr;`
84			`wire [VCN-1:0] svcra, nvcra, lvcra;`
85			`wire [VCN-1:0][1:0] wvcr, evcr;`
86			`wire [VCN-1:0] wvcra, evcra;`
87
88			`// SW requests`
89			`wire [VCN-1:0][1:0] siswr, wiswr, niswr, eiswr, liswr;`
90			`wire [VCN-1:0][3:0] siswrt, niswrt, liswrt;`
91			`wire [VCN-1:0][1:0] wiswrt, eiswrt;`
92
93			`// crossbar to output`
94			`wire [SCN-1:0] cb2s0, cb2s1, cb2s2, cb2s3;`
95			`wire [SCN-1:0] cb2w0, cb2w1, cb2w2, cb2w3;`
96			`wire [SCN-1:0] cb2n0, cb2n1, cb2n2, cb2n3;`
97			`wire [SCN-1:0] cb2e0, cb2e1, cb2e2, cb2e3;`
98			`wire [SCN-1:0] cb2l0, cb2l1, cb2l2, cb2l3;`
99			`wire [FT-1:0] cb2st, cb2wt, cb2nt, cb2et, cb2lt;`
100			`wire cb2sa, cb2wa, cb2na, cb2ea, cb2la;`
101
102			`// SW requests to VC arbiters in output buffers`
103			`wire [VCN-1:0] soswr, woswr, noswr, eoswr, loswr;`
104			`wire [VCN-1:0] soswa, woswa, noswa, eoswa, loswa;`
105
106			`//-------------------------------------`
107			`// south input buffer`
108			`inpbuf #(.DW(DW), .VCN(VCN), .DIR(0), .SN(4), .PD(PD), .FT(FT))`
109			`SIB (`
110			`.dia ( sia ),`
111			`.cor ( sic ),`
112			`.do0 ( s2cb0 ),`
113			`.do1 ( s2cb1 ),`
114			`.do2 ( s2cb2 ),`
115			`.do3 ( s2cb3 ),`
116			`.dot ( s2cbt ),`
117			`.dortg ( s2cbrtg ),`
118			`.vcr ( svcr ),`
119			`.swr ( siswr ),`
120			`.di0 ( si0 ),`
121			`.di1 ( si1 ),`
122			`.di2 ( si2 ),`
123			`.di3 ( si3 ),`
124			`.dit ( sift ),`
125			`.divc ( sivc ),`
126			`.coa ( sica ),`
127			`.doa ( s2cba ),`
128			`.vcra ( svcra ),`
129			`.swrt ( siswrt ),`
130			`.addrx ( addrx ),`
131			`.addry ( addry ),`
132	45	wsong0210	`.rst_n ( rst_n )`
133	40	wsong0210	`);`
134
135			`// west input buffer`
136			`inpbuf #(.DW(DW), .VCN(VCN), .DIR(1), .SN(2), .PD(PD), .FT(FT))`
137			`WIB (`
138			`.dia ( wia ),`
139			`.cor ( wic ),`
140			`.do0 ( w2cb0 ),`
141			`.do1 ( w2cb1 ),`
142			`.do2 ( w2cb2 ),`
143			`.do3 ( w2cb3 ),`
144			`.dot ( w2cbt ),`
145			`.dortg ( w2cbrtg ),`
146			`.vcr ( wvcr ),`
147			`.swr ( wiswr ),`
148			`.di0 ( wi0 ),`
149			`.di1 ( wi1 ),`
150			`.di2 ( wi2 ),`
151			`.di3 ( wi3 ),`
152			`.dit ( wift ),`
153			`.divc ( wivc ),`
154			`.coa ( wica ),`
155			`.doa ( w2cba ),`
156			`.vcra ( wvcra ),`
157			`.swrt ( wiswrt ),`
158			`.addrx ( addrx ),`
159			`.addry ( addry ),`
160	45	wsong0210	`.rst_n ( rst_n )`
161	40	wsong0210	`);`
162
163			`// north input buffer`
164			`inpbuf #(.DW(DW), .VCN(VCN), .DIR(2), .SN(4), .PD(PD), .FT(FT))`
165			`NIB (`
166			`.dia ( nia ),`
167			`.cor ( nic ),`
168			`.do0 ( n2cb0 ),`
169			`.do1 ( n2cb1 ),`
170			`.do2 ( n2cb2 ),`
171			`.do3 ( n2cb3 ),`
172			`.dot ( n2cbt ),`
173			`.dortg ( n2cbrtg ),`
174			`.vcr ( nvcr ),`
175			`.swr ( niswr ),`
176			`.di0 ( ni0 ),`
177			`.di1 ( ni1 ),`
178			`.di2 ( ni2 ),`
179			`.di3 ( ni3 ),`
180			`.dit ( nift ),`
181			`.divc ( nivc ),`
182			`.coa ( nica ),`
183			`.doa ( n2cba ),`
184			`.vcra ( nvcra ),`
185			`.swrt ( niswrt ),`
186			`.addrx ( addrx ),`
187			`.addry ( addry ),`
188	45	wsong0210	`.rst_n ( rst_n )`
189	40	wsong0210	`);`
190
191			`// east input buffer`
192			`inpbuf #(.DW(DW), .VCN(VCN), .DIR(3), .SN(2), .PD(PD), .FT(FT))`
193			`EIB (`
194			`.dia ( eia ),`
195			`.cor ( eic ),`
196			`.do0 ( e2cb0 ),`
197			`.do1 ( e2cb1 ),`
198			`.do2 ( e2cb2 ),`
199			`.do3 ( e2cb3 ),`
200			`.dot ( e2cbt ),`
201			`.dortg ( e2cbrtg ),`
202			`.vcr ( evcr ),`
203			`.swr ( eiswr ),`
204			`.di0 ( ei0 ),`
205			`.di1 ( ei1 ),`
206			`.di2 ( ei2 ),`
207			`.di3 ( ei3 ),`
208			`.dit ( eift ),`
209			`.divc ( eivc ),`
210			`.coa ( eica ),`
211			`.doa ( e2cba ),`
212			`.vcra ( evcra ),`
213			`.swrt ( eiswrt ),`
214			`.addrx ( addrx ),`
215			`.addry ( addry ),`
216	45	wsong0210	`.rst_n ( rst_n )`
217	40	wsong0210	`);`
218
219			`// local input buffer`
220			`inpbuf #(.DW(DW), .VCN(VCN), .DIR(4), .SN(4), .PD(PD), .FT(FT))`
221			`LIB (`
222			`.dia ( lia ),`
223			`.cor ( lic ),`
224			`.do0 ( l2cb0 ),`
225			`.do1 ( l2cb1 ),`
226			`.do2 ( l2cb2 ),`
227			`.do3 ( l2cb3 ),`
228			`.dot ( l2cbt ),`
229			`.dortg ( l2cbrtg ),`
230			`.vcr ( lvcr ),`
231			`.swr ( liswr ),`
232			`.di0 ( li0 ),`
233			`.di1 ( li1 ),`
234			`.di2 ( li2 ),`
235			`.di3 ( li3 ),`
236			`.dit ( lift ),`
237			`.divc ( livc ),`
238			`.coa ( lica ),`
239			`.doa ( l2cba ),`
240			`.vcra ( lvcra ),`
241			`.swrt ( liswrt ),`
242			`.addrx ( addrx ),`
243			`.addry ( addry ),`
244	45	wsong0210	`.rst_n ( rst_n )`
245	40	wsong0210	`);`
246
247			`// south output buffer`
248			`outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))`
249			`SOB (`
250			`.dia ( cb2sa ),`
251			`.do0 ( so0 ),`
252			`.do1 ( so1 ),`
253			`.do2 ( so2 ),`
254			`.do3 ( so3 ),`
255			`.dot ( soft ),`
256			`.dovc ( sovc ),`
257			`.afc ( soca ),`
258			`.vca ( soswa ),`
259			`.di0 ( cb2s0 ),`
260			`.di1 ( cb2s1 ),`
261			`.di2 ( cb2s2 ),`
262			`.di3 ( cb2s3 ),`
263			`.dit ( cb2st ),`
264			`.doa ( soa ),`
265			`.credit( soc ),`
266			`.vcr ( soswr ),`
267	45	wsong0210	`.rst_n ( rst_n )`
268	40	wsong0210	`);`
269
270			`// west output buffer`
271			`outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))`
272			`WOB (`
273			`.dia ( cb2wa ),`
274			`.do0 ( wo0 ),`
275			`.do1 ( wo1 ),`
276			`.do2 ( wo2 ),`
277			`.do3 ( wo3 ),`
278			`.dot ( woft ),`
279			`.dovc ( wovc ),`
280			`.afc ( woca ),`
281			`.vca ( woswa ),`
282			`.di0 ( cb2w0 ),`
283			`.di1 ( cb2w1 ),`
284			`.di2 ( cb2w2 ),`
285			`.di3 ( cb2w3 ),`
286			`.dit ( cb2wt ),`
287			`.doa ( woa ),`
288			`.credit( woc ),`
289			`.vcr ( woswr ),`
290	45	wsong0210	`.rst_n ( rst_n )`
291	40	wsong0210	`);`
292
293			`// north output buffer`
294			`outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))`
295			`NOB (`
296			`.dia ( cb2na ),`
297			`.do0 ( no0 ),`
298			`.do1 ( no1 ),`
299			`.do2 ( no2 ),`
300			`.do3 ( no3 ),`
301			`.dot ( noft ),`
302			`.dovc ( novc ),`
303			`.afc ( noca ),`
304			`.vca ( noswa ),`
305			`.di0 ( cb2n0 ),`
306			`.di1 ( cb2n1 ),`
307			`.di2 ( cb2n2 ),`
308			`.di3 ( cb2n3 ),`
309			`.dit ( cb2nt ),`
310			`.doa ( noa ),`
311			`.credit( noc ),`
312			`.vcr ( noswr ),`
313	45	wsong0210	`.rst_n ( rst_n )`
314	40	wsong0210	`);`
315
316			`// east output buffer`
317			`outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))`
318			`EOB (`
319			`.dia ( cb2ea ),`
320			`.do0 ( eo0 ),`
321			`.do1 ( eo1 ),`
322			`.do2 ( eo2 ),`
323			`.do3 ( eo3 ),`
324			`.dot ( eoft ),`
325			`.dovc ( eovc ),`
326			`.afc ( eoca ),`
327			`.vca ( eoswa ),`
328			`.di0 ( cb2e0 ),`
329			`.di1 ( cb2e1 ),`
330			`.di2 ( cb2e2 ),`
331			`.di3 ( cb2e3 ),`
332			`.dit ( cb2et ),`
333			`.doa ( eoa ),`
334			`.credit( eoc ),`
335			`.vcr ( eoswr ),`
336	45	wsong0210	`.rst_n ( rst_n )`
337	40	wsong0210	`);`
338
339			`// east output buffer`
340			`outpbuf #(.DW(DW), .VCN(VCN), .FT(FT), .FCPD(FCPD))`
341			`LOB (`
342			`.dia ( cb2la ),`
343			`.do0 ( lo0 ),`
344			`.do1 ( lo1 ),`
345			`.do2 ( lo2 ),`
346			`.do3 ( lo3 ),`
347			`.dot ( loft ),`
348			`.dovc ( lovc ),`
349			`.afc ( loca ),`
350			`.vca ( loswa ),`
351			`.di0 ( cb2l0 ),`
352			`.di1 ( cb2l1 ),`
353			`.di2 ( cb2l2 ),`
354			`.di3 ( cb2l3 ),`
355			`.dit ( cb2lt ),`
356			`.doa ( loa ),`
357			`.credit( loc ),`
358			`.vcr ( loswr ),`
359	45	wsong0210	`.rst_n ( rst_n )`
360	40	wsong0210	`);`
361
362			`// VC allocator`
363			`vcalloc #(.VCN(VCN))`
364	42	wsong0210	`ALLOC (`
365			`.svcra ( svcra ),`
366			`.wvcra ( wvcra ),`
367			`.nvcra ( nvcra ),`
368			`.evcra ( evcra ),`
369			`.lvcra ( lvcra ),`
370			`.sswa ( siswrt ),`
371			`.wswa ( wiswrt ),`
372			`.nswa ( niswrt ),`
373			`.eswa ( eiswrt ),`
374			`.lswa ( liswrt ),`
375			`.sosr ( soswr ),`
376			`.wosr ( woswr ),`
377			`.nosr ( noswr ),`
378			`.eosr ( eoswr ),`
379			`.losr ( loswr ),`
380			`.svcr ( svcr ),`
381			`.nvcr ( nvcr ),`
382			`.lvcr ( lvcr ),`
383			`.wvcr ( wvcr ),`
384			`.evcr ( evcr ),`
385			`.sswr ( siswr ),`
386			`.wswr ( wiswr ),`
387			`.nswr ( niswr ),`
388			`.eswr ( eiswr ),`
389			`.lswr ( liswr ),`
390			`.sosa ( soswa ),`
391			`.wosa ( woswa ),`
392			`.nosa ( noswa ),`
393			`.eosa ( eoswa ),`
394			`.losa ( loswa ),`
395	45	wsong0210	`.rst_n ( rst_n )`
396	42	wsong0210	`);`
397	40	wsong0210
398			`// crossbar`
399			`dcb_vc #(.DW(DW), .FT(FT), .VCN(VCN))`
400			`CB (`
401			`.dia ( {l2cba, e2cba, n2cba, w2cba, s2cba} ),`
402			`.do0 ( {cb2l0, cb2e0, cb2n0, cb2w0, cb2s0} ),`
403			`.do1 ( {cb2l1, cb2e1, cb2n1, cb2w1, cb2s1} ),`
404			`.do2 ( {cb2l2, cb2e2, cb2n2, cb2w2, cb2s2} ),`
405			`.do3 ( {cb2l3, cb2e3, cb2n3, cb2w3, cb2s3} ),`
406			`.dot ( {cb2lt, cb2et, cb2nt, cb2wt, cb2st} ),`
407			`.di0 ( {l2cb0, e2cb0, n2cb0, w2cb0, s2cb0} ),`
408			`.di1 ( {l2cb1, e2cb1, n2cb1, w2cb1, s2cb1} ),`
409			`.di2 ( {l2cb2, e2cb2, n2cb2, w2cb2, s2cb2} ),`
410			`.di3 ( {l2cb3, e2cb3, n2cb3, w2cb3, s2cb3} ),`
411			`.dit ( {l2cbt, e2cbt, n2cbt, w2cbt, s2cbt} ),`
412			`.srtg ( s2cbrtg ),`
413			`.nrtg ( n2cbrtg ),`
414			`.lrtg ( l2cbrtg ),`
415			`.wrtg ( w2cbrtg ),`
416			`.ertg ( e2cbrtg ),`
417			`.doa ( {cb2la, cb2ea, cb2na, cb2wa, cb2sa} )`
418			`);`
419
420			`endmodule // router`
421
422
423
424

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