Abstract. In this paper we present a new dynamic routing algorithm specially implemented for a new electronic tissue called POEtic. This reconfigurable circuit is designed to ease the implementation of bio-inspired systems that bring cellular applications into play. Specifically designed for implementing cellular applications, such as neural networks, this circuit is composed of two main parts: a two-dimensional array of basic elements similar to those found in common commercial FPGAs, and a two-dimensional array of routing units that implement a dynamic routing algorithm which allows the creation of data paths between cells at runtime.
One of the major limiting fuctors for the development of hardware plulfornis able lo siipport evolvuble hurhvure principles is [he luck of simple and compact insystem dynumic roiiting strutegies. In [his paper we shull present U progrunimuble hurdwure urchitecture whose internul orgunixtion permils io perform dynumic roirting processes, The urchilecture is bused on U regirlur bidinirnsionul urruy of fiinctionul cells. A hierurchicul luyered orgunizution hus been provided ,for ihese cells. Specijk roiiting re.soiirces huve been inclirded in one of these Iuyers. .so thui they permit to constriici in un incrementul wuy routing puths among the fiincf ionul cells. The dynumic roiiting slrutegy is bused on U replicalion process thui is able to conneci U source cell with vurioirs turgei cells. One of the major udvuniuges ofthe proposed routing struiegy lies in ihe fuct thul its complexily grows only linearly with the array s i x . Firrthermore it is .scufuble, uccommoduting ivithoirt performance degradation to m y array size. Behuviorul hurdivure descriptions huve been created for the fiinctionul cells thul constitiiie /he array. A s the simzrlulion and syn1hesi.s resirlt.~ will show. the proposed roiiling strutegv will permit the implementution of uctirul evolvuble hardware principles.
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