Patents Assigned to Xilinx, Inc.
  • Patent number: 11694066
    Abstract: Embodiments herein describe techniques for interfacing a neural network application with a neural network accelerator using a library. The neural network application may execute on a host computing system while the neural network accelerator executes on a massively parallel hardware system, e.g., a FPGA. The library operates a pipeline for submitting the tasks received from the neural network application to the neural network accelerator. In one embodiment, the pipeline includes a pre-processing stage, an FPGA execution stage, and a post-processing stage which each correspond to different threads. When receiving a task from the neural network application, the library generates a packet that includes the information required for the different stages in the pipeline to perform the tasks. Because the stages correspond to different threads, the library can process multiple packets in parallel which can increase the utilization of the neural network accelerator on the hardware system.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: July 4, 2023
    Assignee: XILINX, INC.
    Inventors: Aaron Ng, Jindrich Zejda, Elliott Delaye, Xiao Teng, Sonal Santan, Soren T. Soe, Ashish Sirasao, Ehsan Ghasemi, Sean Settle
  • Patent number: 11695397
    Abstract: Receiver circuitry for a communication system includes signal processing circuitry, voltage digital-to-analog converter (DAC) circuitry, and slicer circuitry. The signal processing circuitry receives a data signal and generate a processed data signal. The voltage DAC circuitry generates a first threshold reference voltage. The slicer circuitry is coupled to an output of the signal processing circuitry. The slicer circuitry includes a capture flip-flop (CapFF) circuit that receives the processed data signal and the first threshold reference voltage. The CapFF circuit further generates a first data signal. The first CapFF circuit includes a first offset compensation circuit that adjusts a parasitic capacitance of the first CapFF circuit.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: July 4, 2023
    Assignee: XILINX, INC.
    Inventors: Wenfeng Zhang, Parag Upadhyaya
  • Patent number: 11695229
    Abstract: Auxiliary power connector PCBs are described. In one example, an auxiliary power connector is described. The auxiliary power connector includes a printed circuit board (PCB) and a PCI express graphics (PEG) connector mounted to the PCB, the PEG connector configured to connect to an auxiliary power source. The auxiliary power connector further includes a set of connectors provided on the PCB, the set of connectors configured to connect the PCB to a main PCB of a device.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: July 4, 2023
    Assignee: XILINX, INC.
    Inventors: Ieuan James Mackereth Marshall, Robert Andrew Daniels
  • Patent number: 11693777
    Abstract: A network interface device comprises a programmable interface configured to provide a device interface with at least one bus between the network interface device and a host device. The programmable interface is programmable to support a plurality of different types of a device interface.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: July 4, 2023
    Assignee: Xilinx, Inc.
    Inventors: Steven L. Pope, Dmitri Kitariev, David J. Riddoch, Derek Roberts, Neil Turton
  • Patent number: 11695535
    Abstract: Embodiments herein describe an integrated circuit with a digital front end (DFE) that includes multiple hardened mixers that can be configured to support multiple different radio paths. The DFE provides the ability to distribute the processing across the multiple mixers, which can be combined and synchronized to create a larger mixer or may be used in other combinations to create multiple discrete mixers.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: July 4, 2023
    Assignee: XILINX, INC.
    Inventors: John Edward McGrath, Gourav Modi, Rhona Wade
  • Patent number: 11693808
    Abstract: An integrated circuit includes an interposer, a first die coupled to the interposer, a second die coupled to the interposer, and a third die coupled to the interposer and having a plurality of die interfaces. The first die includes a first data processing engine (DPE) array having a first plurality of DPEs and a first DPE interface coupled to the first plurality of DPEs therein. The second die includes a second DPE array having a second plurality of DPEs and a second DPE interface coupled to the second plurality of DPEs therein. The first DPE interface of the first die is configured to communicate with a first die interface of the plurality of die interfaces via the interposer. The second DPE interface of the second die is configured to communicate with a second die interface of the plurality of die interfaces via the interposer.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: July 4, 2023
    Assignee: Xilinx, Inc.
    Inventors: Juan J. Noguera Serra, Tim Tuan, Sridhar Subramanian
  • Patent number: 11695669
    Abstract: A network interface device, said network interface device has a data transmission path configured to receive data for transmission. The data for transmission is to be sent over a network by the network interface device. A monitor is configured to monitor the data transmission path to determine if an underrun condition is associated with the data transmission path. If so, an indication is included in the transmitted data packet.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: July 4, 2023
    Assignee: Xilinx, Inc.
    Inventors: Steven L. Pope, David J. Riddoch, Derek Roberts
  • Patent number: 11693805
    Abstract: An adaptive memory expansion scheme is proposed, where one or more memory expansion capable Hosts or Accelerators can have their memory mapped to one or more memory expansion devices. The embodiments below describe discovery, configuration, and mapping schemes that allow independent SCM implementations and CPU-Host implementations to match their memory expansion capabilities. As a result, a memory expansion host (e.g., a memory controller in a CPU or an Accelerator) can declare multiple logical memory expansion pools, each with a unique capacity. These logical memory pools can be matched to physical memory in the SCM cards using windows in a global address map. These windows represent shared memory for the Home Agents (HAs) (e.g., the Host) and the Slave Agent (SAs) (e.g., the memory expansion device).
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: July 4, 2023
    Assignee: XILINX, INC.
    Inventors: Jaideep Dastidar, Millind Mittal
  • Publication number: 20230205959
    Abstract: An integrated circuit includes an intellectual property core, scan data pipeline circuitry configured to convey scan data to the intellectual property core, and scan control pipeline circuitry configured to convey one or more scan control signals to the intellectual property core. The integrated circuit also includes a wave shaping circuit configured to detect a trigger event on the one or more scan control signals and, in response to detecting the trigger event, suppress a scan clock to the intellectual property core for a selected number of clock cycles.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 29, 2023
    Applicant: Xilinx, Inc.
    Inventors: Albert Shih-Huai Lin, Rambabu Nerukonda, Niravkumar Patel, Amitava Majumdar
  • Publication number: 20230205452
    Abstract: A circular buffer architecture includes a memory coupled to a producer circuit and a consumer circuit. The memory is configured to store objects. The memory can include memory banks. The number of the memory banks is less than a number of the objects. The circular buffer can include hardware locks configured to reserve selected ones of the memory banks for use by the producer circuit or the consumer circuit. The circular buffer can include a buffer controller coupled to the memory and configured to track a plurality of positions. The positions can include a consumer bank position, a consumer object position, a producer bank position, and a producer object position. The buffer controller is configured to allocate selected ones of the objects from the memory banks to the producer circuit and to the consumer circuit according to the tracked positions and using the hardware locks.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 29, 2023
    Applicant: Xilinx, Inc.
    Inventors: Kristof Denolf, Jack S. Lo, Louis Coulon, Kornelis A. Vissers
  • Patent number: 11689207
    Abstract: Phase-locked loop circuitry generates an output signal based on transformer based voltage controlled oscillator (VCO) circuitry. The VCO circuitry includes upper band circuitry including first oscillation circuitry, a first harmonic filter circuitry coupled to the first oscillation circuitry, and a first selection transistor coupled to the first harmonic filter circuitry and a current source. The first harmonic filter circuitry filters the output signal. The lower band circuitry includes second oscillation circuitry, a second harmonic filter circuitry coupled to the second oscillation circuitry, and a second selection transistor coupled to the second harmonic filter circuitry and the current source. The second harmonic filter circuitry filters the output signal.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: June 27, 2023
    Assignee: XILINX, INC.
    Inventors: Adebabay M. Bekele, Parag Upadhyaya
  • Patent number: 11687108
    Abstract: Apparatuses and methods relating generally to reduction of allocation of external power and/or ground pins of a microelectronic device are disclosed. In one such apparatus, an external power input pin is configured for receiving an input supply-side power having an external supply voltage level higher than an internal supply voltage level and an external supply current level lower than an internal supply current level. An internal power plane circuit coupled to the external power input pin is configured to step-down a voltage from the external supply voltage level to the internal supply voltage level and to step-up a current from the external supply current level to the internal supply current level to provide an internal power source.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: June 27, 2023
    Assignee: XILINX, INC.
    Inventor: Stephen M. Trimberger
  • Patent number: 11687327
    Abstract: Embodiments herein use control application programming interfaces (APIs) to control the execution of a dataflow graph in a heterogeneous processing system. That is, embodiments herein describe a programming model along with associated APIs and methods that can control, interact, and at least partially reconfigure a user application (e.g., the dataflow graph) executing on the heterogeneous processing system through a local executing control program. Using the control APIs, users can manipulate such remotely executing graphs directly as local objects and perform control operations on them (e.g., for loading and initializing the graphs; dynamically adjusting parameters for adaptive control; monitoring application parameters, system states and events; scheduling operations to read and write data across the distributed memory boundary of the platform; controlling the execution life-cycle of a subsystem; and partially reconfiguring the computing resources for a new subsystem).
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: June 27, 2023
    Assignee: XILINX, INC.
    Inventors: Chia-Jui Hsu, Shail Aditya Gupta, Samuel R. Bayliss, Philip B. James-Roxby, Ralph D. Wittig, Vinod Kathail
  • Patent number: 11688675
    Abstract: Various noise isolation structures and methods for fabricating the same are presented. In one example, a substrate for chip package is provided. The substrate includes a core region, top build-up layers and bottom build-up layers. The top build-up layers are formed on a first side of the core region and the bottom build-up layers are formed on a second side of the core region that is opposite the first side. Routing circuitry formed in the bottom build-up layers is coupled to routing circuitry formed in the top build-up layers by vias formed through the core region. A void is formed in the bottom build-up layers. The void is configured as a noise isolation structure. The void has a sectional area that is different in at least two different distances from the core region.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: June 27, 2023
    Assignee: XILINX, INC.
    Inventors: Frank Peter Lambrecht, Po-Wei Chiu, Hong Shi
  • Patent number: 11689361
    Abstract: N key generation circuits are arranged in a pipeline having N stages. Each key generation circuit is configured to generate a round key as a function of a respective input key and a respective round constant. Output signal lines that carry the round key from a key generation circuit in a stage of the pipeline, except the key generation circuit in a last stage of the pipeline, are coupled to the key generation circuit in a successive stage of the pipeline to provide the respective input key.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: June 27, 2023
    Assignee: XILINX, INC.
    Inventors: Devanjan Maiti, Robert Bellarmin Susai, Jayaram Pvss
  • Patent number: 11689648
    Abstract: A network interface device comprises an input configured to receive a storage response comprising a plurality of packets of data, one or more packets comprising a header part and data to be stored, the header part comprising a transport protocol header and a data storage application header. A first packet processor is configured to receive two or more of said plurality of packets and perform transport protocol processing of the received packets to provide transport protocol processed packets A second packet processor configured to receive the transport protocol processed packets from the first packet processor, to write the data to be stored of the received packets to memory and to provide the data storage application header and a pointer to a location in the memory to which the data has been written.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: June 27, 2023
    Assignee: XILINX, INC.
    Inventors: Steven Leslie Pope, Derek Edward Roberts, Dmitri Kitariev, Neil Duncan Turton, David James Riddoch, Ripduman Sohan
  • Patent number: 11681846
    Abstract: A method of FPGA compilation for an emulation system includes receiving a netlist for an FPGA, partitioning the netlist into a set of sub-FPGA netlists, and mapping each of the sub-FPGA netlists in the set to a corresponding dynamic sub-FPGA region of the FPGA. The method further includes implementing the sub-FPGA netlists of the set in parallel to obtain a corresponding set of sub-FPGA bitstreams.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: June 20, 2023
    Assignee: XILINX, INC.
    Inventors: Xiaojian Yang, Frederic Revenu, Dinesh D. Gaitonde, Amit Gupta
  • Patent number: 11683038
    Abstract: A System-on-Chip includes a first partition configured to implement a first application using of at least a first portion of one or more of a plurality of subsystems of the System-on-Chip and a second partition configured to implement a second application concurrently with the first partition. The second application uses at least a second portion of one or more of the plurality of subsystems. The first partition is isolated from the second partition.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: June 20, 2023
    Assignee: Xilinx, Inc.
    Inventors: Sagheer Ahmad, Jaideep Dastidar, Brian C. Gaide, Juan J. Noguera Serra, Ian A. Swarbrick
  • Patent number: 11681844
    Abstract: A semiconductor device comprises a design under test (DUT), a testing interface, pattern generation circuitry, and pattern checker circuitry. The pattern generation circuitry is connected to the DUT and the testing interface. The pattern generation circuitry is configured to generate a test data sequence and control data based on configuration data received from the testing interface, and communicate the test data sequence and the control data to the DUT. The pattern checker circuitry is connected to the DUT and the testing interface. The pattern checker circuitry is configured to generate a comparison test sequence based on the configuration data received from the testing interface, receive resultant test data sequence and output control data from the DUT, and generate a first error signal based on a comparison of the resultant test data sequence and the comparison test sequence and a comparison of the output control data and the configuration data.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: June 20, 2023
    Assignee: XILINX, INC.
    Inventors: Riyas Noorudeen Remla, Chee Chong Chan
  • Publication number: 20230185451
    Abstract: Approaches for data compression involve a compression circuit packing non-zero data elements of a succession of words of a plurality of blocks into packed words by packing non-zero data elements of one or more words of the succession in each packed word, and restricting each packed word to data elements of one uncompressed block. The compression circuit writes each packed word in a RAM and within a compressed address range associated with the uncompressed block when the packed word is full of non-zero data elements, or before the packed word is full if the next input word is of another uncompressed block.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 15, 2023
    Applicant: Xilinx, Inc.
    Inventors: Vamsi Krishna Nalluri, Sai Lalith Chaitanya Ambatipudi, Mrinal J. Sarmah, Rajeev Patwari, Shreyas Manjunath, Sandeep Jayant Sathe