Abstract: A data pipeline circuit includes an upstream interface circuit that receives sequential data and a downstream interface circuit that transfers the sequential data to a downstream circuit. A ready signal indicates the downstream circuit is ready to receive the sequential data. The data pipeline circuit includes a first data latch, a second data latch and a first status latch. The first data latch receives the sequential data. The first status latch generates an available signal that is asserted to indicate the second data latch is available to receive the sequential data. The second data latch receives the sequential data in response on the available signal being asserted and the ready signal indicating the downstream circuit is not ready to receive the sequential data on the data output. Limiting conditions in which the sequential data is stored in the second data latch significantly reduces power consumption of the data pipeline circuit.

Abstract: A data pipeline circuit includes an upstream interface circuit that receives sequential data and a downstream interface circuit that transfers the sequential data to a downstream circuit. A ready signal indicates the downstream circuit is ready to receive the sequential data. The data pipeline circuit includes a first data latch, a second data latch and a first status latch. The first data latch receives the sequential data. The first status latch generates an available signal that is asserted to indicate the second data latch is available to receive the sequential data. The second data latch receives the sequential data in response on the available signal being asserted and the ready signal indicating the downstream circuit is not ready to receive the sequential data on the data output. Limiting conditions in which the sequential data is stored in the second data latch significantly reduces power consumption of the data pipeline circuit.

Abstract: Structures, methods, and systems for designing and verifying integrated circuits including redundant logic blocks are provided. An integrated circuit includes selection logic and selectable logic blocks that are individually controllable by the selection logic. The selectable logic blocks include respective instances of a redundant logic block, and respective instances of an interface logic block that selectively disable the redundant logic blocks in the integrated circuit.

Abstract: Structures, methods, and systems for designing and verifying integrated circuits including redundant logic blocks are provided. An integrated circuit includes selection logic and selectable logic blocks that are individually controllable by the selection logic. The selectable logic blocks include respective instances of a redundant logic block, and respective instances of an interface logic block that selectively disable the redundant logic blocks in the integrated circuit.

Abstract: Chip area corresponding to unnecessary I/O cell sites is recovered and made usable for additional core cells and power connections by grouping I/O cells into I/O kernels of contiguous I/O cells having power connections independent of other I/O kernels and depopulating I/O cell sites in accordance with areas corresponding to I/O kernels. Since I/O kernels have dedicated power connections, no power busses are present in the depopulated I/O cell sites which can then be freely use for additional core cells, power connections or the like. This technique also allows selection of a chip of minimum required area to be determined prior to design of chip layout.

Abstract: A method and system for modifying power rails of an integrated circuit having improved wireability. This is accomplished by initially generating a power railing design of the integrated circuit into a three-dimensional rail based model. Next, analysis of the design is performed as to placement of the power rails in relation to neighboring elements that affects a predefined wireability. Finally, modification of a segment of each power rail that affects wireability is performed so that required power supply to the neighboring elements (e.g., pins, rails etc.) remains unaffected.

Abstract: A method and system for modifying power rails of an integrated circuit having improved wireability. This is accomplished by initially generating a power railing design of the integrated circuit into a three-dimensional rail based model. Next, analysis of the design is performed as to placement of the power rails in relation to neighboring elements that affects a predefined wireability. Finally, modification of a segment of each power rail that affects wireability is performed so that required power supply to the neighboring elements (e.g., pins, rails etc.) remains unaffected.