USB Validation Challenges on C45SOI & C28NM Technology Products

With shrinking technologies, high speed design such as USB starts giving all sort of problem. The issues which come due to aforesaid reason are difficult to debug, analyze and root-cause. The traditional USB Validation approach is unable to discover all the issues leading to customer reject. With inclusion of aggressive new test cases in Validation plan under the umbrella of "Firmware based Validation" numerous issues were caught in USB design. The complex issues of USB caught and elegant solution to those problems are described in this paper as case studies.