Clock architecture, including clock mesh fabric for fpga, and method of operating same

Abstract

An integrated circuit comprising (1) an array of logic tiles including a first and a second plurality of logic tiles, wherein each logic tile of the array is configurable to electrically connect with at least one other logic tile, and (2) a clock mesh fabric to provide a mesh clock signal to the first plurality of the logic tiles. Each logic tile of the first plurality includes clock distribution and transmission circuitry including: (1) tile clock generation circuitry configurable to generate a tile clock signal having a skew which is balanced with respect to the tile clock signals of each logic tile of the first plurality of logic tiles, and (2) clock selection circuitry configurable to receive the mesh clock signal and the tile clock signal and responsively output the tile clock to the circuitry which performs operations using or based on the associated tile clock.