Patents Examined by W. Thomson
  • Method and system for simulating a communications bus
    Patent number: 6442514
    Abstract: A method and system for simulation of a communications bus. A simulation arrangement is configured with a behavioral agent and an application agent coupled to the bus. Bus commands are selectively loaded in the behavioral and application agent in accordance with a desired simulation sequence. The behavioral agent is configurable with phase behavior instructions that specify assertion and deassertion times for selected signals by the behavioral agent. Compliant and non-compliant bus behavior can be simulated with the phase behavior instructions.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: August 27, 2002
    Assignee: Xilinx, Inc.
    Inventor: Tony Viet Nam Le
  • Address triggered DMA controller with an indicative signal including circuitry for calculating a new trigger address value based on the sum of the current trigger address and the descriptor register data with a trigger address register
    Patent number: 6185634
    Abstract: An address triggered DMA controller includes a DMA engine for controlling transfer of data between an external device and locations in a memory designated by respective addresses. Such a DMA controller also includes a DMA monitor for monitoring the respective addresses, and if one of the respective addresses matches a predetermined value, generating a signal to indicate a match.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: February 6, 2001
    Assignee: EMC Corporation
    Inventor: Jeffrey Wilcox