Importance

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Abstract

A circular product term allocator configured to provide connections for product term signals to macrocells of a programmable logic device is provided. The circular product term allocator may provide such connections through a logic OR function. Alternatively, a homogeneous product term allocator may be configured to provide connections for product term signals to macrocells of a programmable logic device. The homogeneous product term allocator may be configured to provide each of the product term signals to an equal number of macrocells. In yet another embodiment, a programmable logic device includes a plurality of macrocells and a product term allocator configured to provide an equal number of product term signals to each of the macrocells. In yet a further embodiment, a method of distributing product terms in a programmable logic device is accomplished by configuring a product term allocator to provide an equal number of product terms, but fewer than all of the product terms, to each of the macrocells.

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First Claim