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This article describes the test wrapper implementation of a popular embedded microprocessor, along with an automated approach for verifying the wrapper's compliance to the standard.
IEEE Std 1500 and Its Usage The ARM Cortex-A8 Microprocessor IEEE Std 1500 Wrapper Teresa McLaurin Stylianos Diamantidis and Iraklis Diamantidis
This article describes the test wrapper implementation of a popular embedded microprocessor, along with an automated approach for verifying the wrapper’s compliance to the standard. —Erik Jan Marinissen, IMEC
Adopting IEEE Std 1500 for core-based manufacturing test can lead to significant improvements in test planning, IP integration, and vector management. The ARM Cortex-A8 microprocessor is one of the first commercial microprocessors to incorporate a IEEE-1500-compliant wrapper, providing a fast track to a core-based test strategy.This article focuses on the design methodologies used to build and validate the ARM Cortex-A8 microprocessor wrapper. It discusses the wrapper architecture, components, and circuits, and describes the implementation of IEEE 1500 from a core provider perspective. Because interoperability is a primary concern for core providers, we also describe the compliance verification methodology that we applied to the IEEE 1500 wrapper, along with some important issues and their respective solutions. [1] T. McLaurin and R. Kapur, "Wrap Your Cores to Enable SOC Test," EE Times,24 Nov. 2004, http://www.design-reuse.com/articles/9228/ wrap-your-cores-to-enable-soc-test-arm-synopsys.html. ARM Cortex-A8 microprocessor, test, IEEE Std 1500, wrapper, compliance, verification Citation: Teresa McLaurin, Stylianos Diamantidis, Iraklis Diamantidis, "The ARM Cortex-A8 Microprocessor IEEE Std 1500 Wrapper," IEEE Design and Test of Computers, vol. 26, no. 1, pp. 44-51, Jan./Feb. 2009, doi:10.1109/MDT.2009.19 |
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