Abstract: Systems or methods for performing clock-skew scheduling or time borrowing using clock delays internal to hardened logic circuitry of an integrated circuit are provided. Such an integrated circuit may include programmable logic circuitry and hardened logic circuitry. The programmable logic circuitry may include at least a first path and a second path. The hardened logic circuitry may include input registers to receive the data from the first path and output registers to output the data to the second path. The hardened logic circuitry may also include first hardened logic circuitry to perform third operations between the input registers and the output registers. The hardened circuitry may also include a first delay circuit configurable to delay a clock signal by a first delay to the input registers or the output registers to enable time borrowing with the hardened logic circuitry.

Abstract: New logic blocks capable of replacing the use of Look-Up Tables (LUTs) in integrated circuits, such as Field-Programmable Gate Arrays (FPGAs), are disclosed herein. In one embodiment, the new logic block is a tree structure comprised of a number of levels of cells with each cell consisting of a logic gate or the functional equivalent of a logic gate, one or more selectable inverters, and wherein the inputs of the logic block consist of the inputs to the logic gate or functional equivalent of the logic gate and inputs to the selectable inverters. The new logic blocks can map circuits more efficiently than LUTs, because they include multi-output blocks and can cover more logic depth due to the higher input and output bandwidth.

Abstract: New logic blocks capable of replacing the use of Look-Up Tables (LUTs) in integrated circuits, such as Field-Programmable Gate Arrays (FPGAs), are disclosed herein. In one embodiment, the new logic block is a tree structure comprised of a number of levels of cells with each cell consisting of a logic gate or the functional equivalent of a logic gate, one or more selectable inverters, and wherein the inputs of the logic block consist of the inputs to the logic gate or functional equivalent of the logic gate and inputs to the selectable inverters. The new logic blocks can map circuits more efficiently than LUTs, because they include multi-output blocks and can cover more logic depth due to the higher input and output bandwidth.