| 摘要 |
PROBLEM TO BE SOLVED: To provide systems and methods that enable improvements in ASIC testing. SOLUTION: An application-specific integrated circuit (ASIC) uses a dedicated interface between core logic and an independent serializer/de-serializer bus (SBus), to provide SBus capabilities to the core logic. In addition to the dedicated interface, the ASIC includes a controller that responds to a set of signals and a plurality of receivers distributed surrounding the SBus. Each of the receivers responds to a set of commands that can be reused to test logic and support functions across each revision of the ASIC, as well as, to test separate ASICs having similar configurations for support functions, without requiring the generation of a discrete scan vector that tests the ASIC. Additional interfaces, such as I.E.E.E. 1149.1 interface, further extend the SBus functionalities up to external test equipment. COPYRIGHT: (C)2008,JPO&INPIT
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