This paper describes a core-based test and diagnosis integration and automation system, called Turbo1500, which automatically synthesizes test and diagnosis logic in accordance with the IEEE 1500 standard. Turbo1500 serves two major purposes. One is for use as a core test automation tool
in a system-on-chip (SOC) environment to automatically connect multiple cores from various sources and create testbenches each targeting an individual core under the control of a chip-level test access port (TAP) controller. The other is for hierarchical (block-by-block) core test and diagnosis when chips on a printed-circuit board are embedded with 1149.1 boundary scan I/O cells and cores under test and diagnosis are surrounded with 1500-compliant wrapper cells. Application experienceshowed that the simplicity of the IEEE 1500 standard combined with an easy-to-use automation tool can make core-based design for test and diagnosis no longer a nightmare, especially when some cores are extremely large or complex.
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