Abstract: A dynamic reconfigurable interconnect network architecture in a logic simulation system that interconnects a plurality of simulation engines together, providing a high degree of interconnectivity in an efficient manner. The logic simulation system may create and manage linkable sub-programs for execution by a simulation engine. The logic simulation system may schedule various tasks in a design to be simulated, including horizontal and vertical partitioning of the design and determination of an order in which events such as clock edges and asynchronous signals are to be implemented by a logic simulation system.

Abstract: Reconfigurable circuits, methods, and systems with reconfigurable interconnect devices, clusters of reconfigurable logic devices, and a programming interface configured to receive configuration data to configure a first combination of the reconfigurable interconnect and logic devices to implement a circuit, and to remap a portion of the received configuration data, corresponding to a defective cluster, from the defective cluster to another non-defective cluster of the plurality of clusters to configure a second combination of the reconfigurable interconnect and logic devices to implement the circuit.

Abstract: Embodiments of crossbar devices constructed with Micro-Electro-Mechanical Systems (MEMS) switches are disclosed herein. A crossbar device may comprise m input terminals, n output terminals, n control lines and m×n MEMS switches coupled to the n control lines to selectively couple the m input terminals to the n output terminal. Each of the MEMS switches may comprise a contact node coupled to one of the m input terminals, a cantilever coupled to one of the n output terminals, a control node coupled to one of the n control lines to electrostatically control the cantilever to contact the contact node or be away from the contact node using electrostatic attractive or repulsive force respectively. The cantilever and the contact node are configured to remain in contact by molecular adhesion force, after the cantilever has been electrostatically controlled to contact the contact node, and the electrostatic attractive force has been removed. Other embodiments may be described and claimed.

Abstract: Message send and receive blocks are provided to emulation ICs and reconfigurable interconnect ICs of an emulation system to reduce the multiplexed transfer latency of critical emulation signals. Each of a corresponding pair of a message send block and a message receive block is provided with a signal state value inclusion schedule to control operation of the message send and receive blocks. The signal state inclusion schedule calls for some signals within a message to be sent more often than other signals within the message. In some embodiments a parity value is implemented as part the message and included in the signal state inclusion schedule.

Abstract: Embodiments of crossbar devices constructed with Micro-Electro-Mechanical Systems (MEMS) switches are disclosed herein. A crossbar device may comprise m input terminals, n output terminals, n control lines and m×n MEMS switches coupled to the n control lines to selectively couple the m input terminals to the n output terminal. Each of the MEMS switches may comprise a contact node coupled to one of the m input terminals, a cantilever coupled to one of the n output terminals, a control node coupled to one of the n control lines to electrostatically control the cantilever to contact the contact node or be away from the contact node using electrostatic attractive or repulsive force respectively. The cantilever and the contact node are configured to remain in contact by molecular adhesion force, after the cantilever has been electrostatically controlled to contact the contact node, and the electrostatic attractive force has been removed. Other embodiments may be described and claimed.

Abstract: Reconfigurable circuits, methods, and systems with reconfigurable interconnect devices, clusters of reconfigurable logic devices, and a programming interface configured to receive configuration data to configure a first combination of the reconfigurable interconnect and logic devices to implement a circuit, and to remap a portion of the received configuration data, corresponding to a defective cluster, from the defective cluster to another non-defective cluster of the plurality of clusters to configure a second combination of the reconfigurable interconnect and logic devices to implement the circuit.

Abstract: A dynamic reconfigurable interconnect network architecture in a logic simulation system that interconnects a plurality of simulation engines together, providing a high degree of interconnectivity in an efficient manner. The logic simulation system may create and manage linkable sub-programs for execution by a simulation engine. The logic simulation system may schedule various tasks in a design to be simulated, including horizontal and vertical partitioning of the design and determination of an order in which events such as clock edges and asynchronous signals are to be implemented by a logic simulation system.

Abstract: A dynamic reconfigurable interconnect network architecture in a logic simulation system that interconnects a plurality of simulation engines together, providing a high degree of interconnectivity in an efficient manner. The logic simulation system may create and manage linkable sub-programs for execution by a simulation engine. The logic simulation system may schedule various tasks in a design to be simulated, including horizontal and vertical partitioning of the design and determination of an order in which events such as clock edges and asynchronous signals are to be implemented by a logic simulation system.

Abstract: Reconfigurable circuits and systems having a recovery module coupled to the reconfigurable circuit and configured to access the configuration memory to retrieve configuration data stored in the configuration memory. The recovery module analyzes the retrieved configuration data to determine whether the configuration data has been corrupted and, if so, restores the configuration data to their uncorrupted state. Methods of operating such reconfigurable circuits and systems are also described.

Abstract: A reconfigurable circuit having communication resources configured to facilitate selective packet-oriented communications among reconfigurable resources is described herein.

Abstract: A reconfigurable circuit having redundant reconfigurable clusters is described herein.

Abstract: A reconfigurable circuit having primary function blocks with runtime built-in self-test (BIST) circuitry, one or more redundant function blocks and runtime reconfiguration logic is described herein.

Abstract: A tool for emulation systems that obtains the state values for only discrete partitions of a circuit design. When a partition is being emulated, the emulation system obtains the input values for the specified partition at each clock cycle and the state values for the specified partition at intervals. Using the state and input values with a software model of the specified circuit design partition, the tool calculates the state values for the partition at every clock cycle. The software model may correspond to the partitioning information used to implement the circuit design across multiple configurable logic element devices, such as FPGAs. Thus, each software model may correspond to the portion of a circuit design emulated on a discrete FPGA integrated circuit.

Abstract: A reconfigurable circuit having redundant reconfigurable clusters is described herein.

Abstract: A reconfigurable circuit having primary function blocks with runtime built-in self-test (BIST) circuitry, one or more redundant function blocks and runtime reconfiguration logic is described herein.

Abstract: Data processing resources are distributively provided to an emulation system to locally and correspondingly configure emulation integrated circuits. In certain embodiments the data processing resources also perform emulation functions. In one embodiment, the distributed data processing resources are disposed on logic boards having emulation ICs that include the reconfigurable logic resources. In another embodiment, data processing resources receive commands transmitted from a workstation executing electronic design automation (EDA) software. In other embodiments, at least some of the distributed data processing resources are disposed on the emulation ICs. The board and IC disposed distributed data processing resources cooperatively perform the configuration and emulation functions as described.

Abstract: Methods and apparatuses for emulating a circuit design that includes an in-circuit memory. Sets of reconfigurable logic resources are configured to emulate a logic element of a circuit, where the circuit may include a plurality of logic elements. A memory resource is configured to emulate a portion of the in-circuit memory. Reconfigurable interconnect resources are configured to interconnect the sets of configurable logic resources to the memory resource by way of a memory access arbiter. The memory access arbiter is configured to arbitrate and serialize accesses for the memory resource by the sets of reconfigurable logic resources in an emulation cycle, in accordance with associated priority levels. The priority level of the set of reconfigurable logic resources may be dependent on timing requirements of the set of reconfigurable logic resources and on timing characteristics of the associated logic element of the circuit.

Abstract: A reconfigurable circuit having primary function blocks with runtime built-in self-test (BIST) circuitry, one or more redundant function blocks and runtime reconfiguration logic is described herein.

Abstract: Reconfigurable circuits with configuration data loaders are described herein. The configuration data loaders are adapted to enable on circuit finalization of configuration data provided in symbolic form, not fully resolved.

Abstract: A reconfigurable circuit having communication resources configured to facilitate selective packet-oriented communications among reconfigurable resources is described herein.