Abstract:
A method and apparatus for processing data within a programmable gate array begins when a fixed logic processor that is embedded within the programmable gate array detects a custom operation code. The processing continues when the fixed logic processor provides an indication of the custom operational code to the programmable gate array. The processing continues by having at least a portion of the programmable gate array, which is configured as a dedicated processor, performing a fixed logic routine upon receiving the indication from the fixed logic processor.
Abstract:
Method and apparatus for generating a test program for an integrated circuit having an embedded processor. One embodiment has a system which includes an embedded microprocessor; a plurality of assembly language instructions stored in a memory, where the assembly language instructions substantially exercise a critical path or a path closest to the critical path in the embedded microprocessor; and programmable test circuitry having a programmable clock circuit for providing a multiplied clock signal to the embedded microprocessor in order to execute the assembly language instructions.
Abstract:
A method and apparatus for processing data within a programmable gate array comprise a first fixed logic processor and a second fixed logic processor that are embedded within the programmable gate array and detect a custom operation code. The processing continues when a fixed logic processor provides an indication of the custom operational code to the programmable gate array. The processing continues by having at least a portion of the programmable gate array, which is configured as a dedicated processor, performing a fixed logic routine upon receiving the indication from the fixed logic processor.
Abstract:
Interconnecting logic provides connectivity of an embedded fixed logic circuit, or circuits, with programmable logic fabric of a programmable gate array such that the fixed logic circuit functions as an extension of the programmable logic fabric. The interconnecting logic includes interconnecting tiles and may further include interconnecting logic. The interconnecting tiles provide selective connectivity between inputs and/or outputs of the fixed logic circuit and the interconnects of the programmable logic fabric. The interconnecting logic, when included, provides logic circuitry that conditions data transfers between the fixed logic circuit and the programmable logic fabric. The invention is directed towards the various needs and requirements of the layout and floor planning of a device having both fixed logic circuitry and programmable logic circuitry. The various designs are geared towards many goals including allowing fail-safe operation, facilitating the ease of interface between fixed logic circuitry and programmable logic fabric, among other issues.
Abstract:
Method and apparatus for generating a test program for an integrated circuit having an embedded processor. One embodiment has a system which includes an embedded microprocessor; a plurality of assembly language instructions stored in a memory, where the assembly language instructions substantially exercise a critical path or a path closest to the critical path in the embedded microprocessor; and programmable test circuitry having a programmable clock circuit for providing a multiplied clock signal to the embedded microprocessor in order to execute the assembly language instructions.
Abstract:
Method and apparatus for generating a test program for a programmable logic device having an embedded processor. Predetermined code is obtained to exercise at least one speed limiting path identified. To the predetermined code is added wrapper code to provide the test program, the wrapper code in part for loading the predetermined code into cache of the embedded processor for testing the at least one speed limiting path of the embedded processor identified.
Abstract:
A data processing system having a user configurable memory controller, one or more block RAMS, and a processor core can be configured in a single field programmable gate array (FPGA). The address depth of the block RAMs and the number of wait states can be selected by a user, and they can be set either prior to configuration of the FPGA or programmed using instructions of the processor core. An algorithm that can optimize the address depth and the number of wait states to achieve a performance level is also disclosed. The present invention can be applied to designs having separate instruction and data sides.
Abstract:
A system is disclosed comprising a logic circuit in an integrated circuit device, wherein the logic circuit comprises a logic fabric that includes a plurality of configurable logic blocks, switching blocks, and input/output blocks, wherein the logic fabric is configured according to configuration data provided to the integrated circuit device from an external memory and at least a portion of the logic fabric is configured as a configured processor to perform a first fixed logic function according to the configuration data. A fixed logic processor, a first auxiliary processing interface, a second fixed logic processor, a second auxiliary processing interface enable communication with the configured processor, wherein the configured processor remains configured to enable both the fixed logic processor and the second fixed logic processor to access the configured processor to perform the fixed logic function.
Abstract:
A processor local bus bridge for a processor block ASIC core for embedding in an IC is described. A core logic-to-core logic bridge includes a slave processor local bus interface, a crossbar switch coupled to the slave processor local bus interface and a master processor local bus interface coupled to the crossbar switch. The slave processor local bus interface and the master processor local bus interface are coupled to one another via the crossbar switch for bidirectional communication between a first and a second portion of core logic. The bridge provides rate adaptation for bridging for use of a frequency of operation associated with the crossbar switch which has substantially greater frequencies of operation than those associated with the core logic sides of the master and slave processor local bus interfaces.
Abstract:
A device control register controller for a processor block Application Specific Integrated Circuit (“ASIC”) core is described. Device control register slave blocks are coupled to the device control register controller and have access to device registers for a plurality of interfaces of the processor block ASIC core. A master device interface is for coupling at least one slave device external to the processor block ASIC core to the device control register controller. A slave device interface is for coupling a master device external to the processor block ASIC core to the device control register controller.