Method and apparatus for exercising external memory with a memory built-in test

The present invention relates to the field of network communications, and more particularly, to the testing of an external system memory of a network interface controller. A network interface controller with an external memory is provided with memory built-in self-test (MBIST) logic that exercises t...

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Bibliographic Details
Main Author Dwork, Jeffrey
Format Patent
LanguageEnglish
Published 15.04.2003
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Summary:The present invention relates to the field of network communications, and more particularly, to the testing of an external system memory of a network interface controller. A network interface controller with an external memory is provided with memory built-in self-test (MBIST) logic that exercises the memory subsystem. The memory testing is run at normal operating speed to test normal and worst-case access patterns. By adjusting a memory size register and running the MBIST test with different sizes, the actual size of the memory is determined.