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/src/cb_xy.v
0,0 → 1,76
/* |
Asynchronous SDM NoC |
(C)2011 Wei Song |
Advanced Processor Technologies Group |
Computer Science, the Univ. of Manchester, UK |
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Authors: |
Wei Song wsong83@gmail.com |
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License: LGPL 3.0 or later |
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Unidirectional crossbar using the XY routing algorithm. |
*** SystemVerilog is used *** |
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History: |
09/07/2009 Initial version. <wsong83@gmail.com> |
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*/ |
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// the router structure definitions |
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module cb_xy (/*AUTOARG*/ |
// Outputs |
so, wo, no, eo, lo, |
// Inputs |
si, wi, ni, ei, li, scfg, ncfg, wcfg, ecfg, lcfg |
) ; |
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parameter DW = 8; // the wire count of the crossbar |
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input [DW-1:0] si, wi, ni, ei, li; // data input |
output [DW-1:0] so, wo, no, eo, lo; // data output |
input [1:0] scfg, ncfg; // configuration |
input [3:0] wcfg, ecfg, lcfg; // configuration |
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// ANDed wires |
wire [DW-1:0][1:0] tos, ton; |
wire [DW-1:0][3:0] tow, toe, tol; |
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// generate |
genvar i, j; |
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generate for (i=0; i<DW; i=i+1) |
begin:OPA |
and AN2S (tos[i][0], ni[i], scfg[0]); |
and AL2S (tos[i][1], li[i], scfg[1]); |
assign so[i] = |tos[i]; |
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and AS2W (tow[i][0], si[i], wcfg[0]); |
and AN2W (tow[i][1], ni[i], wcfg[1]); |
and AE2W (tow[i][2], ei[i], wcfg[2]); |
and AL2W (tow[i][3], li[i], wcfg[3]); |
assign wo[i] = |tow[i]; |
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and AS2N (ton[i][0], si[i], ncfg[0]); |
and AL2N (ton[i][1], li[i], ncfg[1]); |
assign no[i] = |ton[i]; |
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and AS2E (toe[i][0], si[i], ecfg[0]); |
and AW2E (toe[i][1], wi[i], ecfg[1]); |
and AN2E (toe[i][2], ni[i], ecfg[2]); |
and AL2E (toe[i][3], li[i], ecfg[3]); |
assign eo[i] = |toe[i]; |
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and AS2L (tol[i][0], si[i], lcfg[0]); |
and AW2L (tol[i][1], wi[i], lcfg[1]); |
and AN2L (tol[i][2], ni[i], lcfg[2]); |
and AE2L (tol[i][3], ei[i], lcfg[3]); |
assign lo[i] = |tol[i]; |
end // block: OPA |
endgenerate |
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endmodule // cb_xy |
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src/cb_xy.v
Property changes :
Added: svn:executable
## -0,0 +1 ##
+*
\ No newline at end of property