Ernest L Edgar

Title: The Innovations of Ernest L. Edgar

Introduction

Ernest L. Edgar is a notable inventor based in Colorado Springs, CO (US). He has made significant contributions to the field of technology, particularly in the area of integrated circuits and debugging systems. With a total of four patents to his name, Edgar's work reflects a deep understanding of complex systems and their functionalities.

Latest Patents

One of Edgar's latest patents is titled "Debug in System on a Chip with Securely Partitioned Memory Space." This invention discloses systems and methods for debugging within a securely partitioned memory space of an integrated circuit. The integrated circuit includes a processor core that executes instructions and a data store that holds a first world identifier. The design also features an outer memory system for storing instructions and data, along with a debug world list that specifies authorized world identifiers for debugging. The debug enable circuitry generates a signal based on the first world identifier and the debug world list, allowing the processor core to either jump to debug handler instructions or ignore debug exceptions based on the signal.

Another significant patent by Edgar is the "Trace Encoder with Event Filter." This invention involves trace circuitry that can receive a selection of event types possible in a processor core. The circuitry generates messages containing trace information when selected events occur, including addresses associated with the events and indications of their types or causes. The trace circuitry can also utilize an event filter to manage which events are passed or blocked, and it may generate timestamps to measure intervals between events.

Career Highlights

Edgar's career is marked by his innovative contributions to the technology sector, particularly through his work at SiFive, Inc. His expertise in integrated circuits and debugging systems has positioned him as a valuable asset in the field.

Collaborations

Throughout his career, Edgar has collaborated with talented individuals such as Henry Cook and Ryan Macdonald. These collaborations have likely contributed to the development of his innovative patents and advancements in technology.

Conclusion

Ernest L. Edgar's work exemplifies the spirit of innovation in technology. His patents demonstrate a commitment to enhancing the functionality and security of integrated circuits. Edgar's contributions continue to influence the field, showcasing the importance of inventive thinking in modern technology.