Using sparse crossbars within LUT
FPGA, pp. 59-68, 2001.
lookup tablecpldcritical pathfpga
In FPGAs, the internal connections in a cluster of lookup tables (LUTs) are often fully-connected like a full crossbar. Such a high degree of connectivity makes routing easier, but has significant area overhead. This paper explores the use of sparse crossbars as a switch matrix inside the clusters between the cluster inputs and the LUT in...More
Best Paper of FPGA, 2001