Image:Switch box.gif

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Whenever a vertical and a horizontal channel intersect there is a switch box. In this architecture, when a wire enters a switch box, there are three programmable switches that allow it to connect to three other wires in adjacent channel segments. (In terms of the usual FPGA terminology then, Fs = 3.) The pattern, or topology, of switches used in this architecture is the planar or domain-based switch box topology. In this switch box topology, a wire in track number one connects only to wires in track number one in adjacent channel segments, wires in track number 2 connect only to other wires in track number 2 and so on. The figure below illustrates the connections in a switch box.

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(del) (cur) 15:32, 15 May 2005 . . Ignaciomella (Talk | contribs) . . 443×288 (3,850 bytes) (Whenever a vertical and a horizontal channel intersect there is a switch box. In this architecture, when a wire enters a switch box, there are three programmable switches that allow it to connect to three other wires in adjacent channel segments. (In term)