Field-programmable gate arrays
Field-programmable gate arrays
Universal switch modules for FPGA design
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Quasi-Universal Switch Matrices for FPD Design
IEEE Transactions on Computers
Generic Universal Switch Blocks
IEEE Transactions on Computers
On optimum switch box designs for 2-D FPGAs
Proceedings of the 38th annual Design Automation Conference
FPGA switch block layout and evaluation
FPGA '02 Proceedings of the 2002 ACM/SIGDA tenth international symposium on Field-programmable gate arrays
A Three-Stage One-Sided Rearrangeable Polygonal Switching Network
IEEE Transactions on Computers
Architecture and CAD for Deep-Submicron FPGAs
Architecture and CAD for Deep-Submicron FPGAs
Reduction design for generic universal switch blocks
ACM Transactions on Design Automation of Electronic Systems (TODAES)
A New Conference Network for Group Communication
IEEE Transactions on Computers
General Models and a Reduction Design Technique for FPGA Switch Box Designs
IEEE Transactions on Computers
Design of Interconnection Networks for Programmable Logic
Design of Interconnection Networks for Programmable Logic
On optimal hyperuniversal and rearrangeable switch box designs
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Reconfigurable Blocks Based on Balanced Ternary
Journal of Signal Processing Systems
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Crossbars have been considered one of the most standard switching modules in conventional communication networks due to its simplicity in routing algorithm and fabrication regularity. While in programmable on-chip interconnection networks such as the routing networks in field programmable gate arrays (FPGAs), switch boxes are often used for a better tradeoff between routability and area efficiency. Much work has been done on the topology design of switch boxes, e.g. universal switch boxes and hyper-universal switch boxes. However, the layout design of switch boxes tends to be difficult when the topology of switch boxes is less regular. In this paper we revisit the theoretical design aspects of the classic crossbar design schemes and further investigate a new design style, a so called meta-crossbar, which is obtained from a crossbar by adding the least number of switches and direct contacts to achieve the desired optimal routability. We show that a switch box can always be implemented by a meta-crossbar. This means that the layout design of switch boxes can be done almost like crossbars. As a result, we present a hyper-universal meta-crossbar design, and a three level meta-crossbar based interconnection network design, which is capable of routing all group communication requirements.