摘要:
An apparatus includes a temperature sensor, a voltage regulator, and a field programmable gate array (FPGA). The temperature sensor and the voltage regulator are adapted, respectively, to provide a temperature signal, and to provide at least one output voltage. The FPGA includes at least one circuit adapted to receive the at least one output voltage of the voltage regulator, and a set of monitor circuits adapted to provide indications of process and temperature for the at least one circuit. The FPGA further includes a controller adapted to derive a body-bias signal and a voltage-level signal from the temperature signal, from the indications of process and temperature for the at least one circuit, and from the at least one output voltage of the voltage regulator. The controller is further adapted to provide the body-bias signal to at least one transistor in the at least one circuit, and to provide the voltage-level signal to the voltage regulator.
摘要:
Memory elements are provided that are immune to soft error upset events when subjected to high-energy atomic particle strikes. The memory elements have nonlinear high-impedance two-terminal elements that restrict the flow of discharge currents during a particle strike. By lengthening the switching speed of the memory elements, the presence of the nonlinear high-impedance two-terminal elements prevents the states of the memory elements from flipping during discharge transients. The nonlinear high-impedance two-terminal elements may be formed from polysilicon p-n junction diodes, Schottky diodes, and other semiconductor structures. Data loading circuitry is provided to ensure that memory element arrays using the nonlinear high-impedance two-terminal elements can be loaded rapidly.
摘要:
A programmable logic device has a plurality of super-regions of programmable circuitry disposed on the device in a two-dimensional array of such super-regions. Each super-region includes a plurality of regions of programmable logic and a region of programmable memory. Each logic region includes a plurality of subregions of programmable logic. Each super-region has associated interconnection resources for allowing communication between the logic and memory regions of that super-region without the need to use, for such relatively local interconnections, the longer-length inter-super-region interconnection resources that are also provided on the device.
摘要:
Programmable interconnection group arrangements for selectively interconnecting logic on a programmable logic device are provided. Interconnection groups may be programmed to route signals between the various conductors on the device, and to route signals from various logic regions on the device to the various conductors. The interconnection groups provide routing flexibility and efficiency without using excessive amounts of interconnection resources.
摘要:
A programmable logic device has a plurality of super-regions of programmable circuitry disposed on the device in a two-dimensional array of such super-regions. Each super-region includes a plurality of regions of programmable logic and a region of programmable memory. Each logic region includes a plurality of subregions of programmable logic. Each super-region has associated interconnection resources for allowing communication between the logic and memory regions of that super-region without the need to use, for such relatively local interconnections, the longer-length inter-super-region interconnection resources that are also provided on the device.
摘要:
A programmable logic device has a plurality of super-regions of programmable logic disposed on the device in a two-dimensional array of intersecting rows and columns of super-regions. Horizontal and vertical inter-super-region interconnection conductors are associated with each row and column, respectively. Each super-region includes a plurality of regions of programmable logic, and each region includes a plurality of subregions of programmable logic. Inter-region interconnection conductors are associated with each super-region, principally for bringing signals into the super-region and interconnecting the regions in the super-region. Local conductors are associated with each region, principally for bringing signals into the region. At the super-region level the device may be horizontally and vertically isomorphic, which helps make it possible to produce devices with low aspect ratios of one or nearly one. Shared driver circuits may be provided (e.g., for (1) receiving signals from the subregions and the horizontal and/or vertical conductors, and (2) applying selected received signals to the inter-region conductors, the horizontal and vertical conductors, and possibly also the local conductors). The horizontal and/or vertical conductors may be axially segmented and buffering circuitry may be provided for programmably stitching together axial segments to make longer conductors.
摘要:
A programmable logic device has a plurality of super-regions of programmable logic disposed on the device in a two-dimensional array of intersecting rows and columns of super-regions. Horizontal and vertical inter-super-region interconnection conductors are associated with each row and column, respectively. Each super-region includes a plurality of regions of programmable logic, and each region includes a plurality of subregions of programmable logic. Inter-region interconnection conductors are associated with each super-region, principally for bringing signals into the super-region and interconnecting the regions in the super-region. Local conductors are associated with each region, principally for bringing signals into the region. At the super-region level the device may be horizontally and vertically isomorphic, which helps make it possible to produce devices with low aspect ratios of one or nearly one. Shared driver circuits may be provided (e.g., for (1) receiving signals from the subregions and the horizontal and/or vertical conductors, and (2) applying selected received signals to the inter-region conductors, the horizontal and vertical conductors, and possibly also the local conductors). The horizontal and/or vertical conductors may be axially segmented and buffering circuitry may be provided for programmably stitching together axial segments to make longer conductors.
摘要:
A programmable logic device has a plurality of super-regions of programmable logic disposed on the device in a two-dimensional array of intersecting rows and columns of super-regions. Horizontal and vertical inter-super-region interconnection conductors are associated with each row and column, respectively. Each super-region includes a plurality of regions of programmable logic, and each region includes a plurality of subregions of programmable logic. Inter-region interconnection conductors are associated with each super-region. Local conductors are associated with each region. Shared driver circuits may be provided (e.g., for (1) receiving signals from the subregions and the horizontal and/or vertical conductors, and (2) applying selected received signals to the inter-region conductors, the horizontal and vertical conductors, and possibly also the local conductors). The horizontal and/or vertical conductors may be axially segmented and buffering circuitry may be provided for programmably stitching together axial segments to make longer conductors.
摘要:
A programmable logic device has a plurality of super-regions of programmable logic disposed on the device in a two-dimensional array of intersecting rows and columns of super-regions. Horizontal and vertical inter-super-region interconnection conductors are associated with each row and column, respectively. Each super-region includes a plurality of regions of programmable logic, and each region includes a plurality of subregions of programmable logic. Inter-region interconnection conductors are associated with each super-region, principally for bringing signals into the super-region and interconnecting the regions in the super-region. Local conductors are associated with each region, principally for bringing signals into the region. At the super-region level the device may be horizontally and vertically isomorphic, which helps make it possible to produce devices with low aspect ratios of one or nearly one. Shared driver circuits may be provided (e.g., for (1) receiving signals from the subregions and the horizontal and/or vertical conductors, and (2) applying selected received signals to the inter-region conductors, the horizontal and vertical conductors, and possibly also the local conductors). The horizontal and/or vertical conductors may be axially segmented and buffering circuitry may be provided for programmably stitching together axial segments to make longer conductors.
摘要:
Programmable interconnection group arrangements for selectively interconnecting logic on a programmable logic device are provided. Interconnection groups may be programmed to route signals between the various conductors on the device, and to route signals from various logic regions on the device to the various conductors. The interconnection groups provide routing flexibility and efficiency without using excessive amounts of interconnection resources.