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Posts Tagged ‘memories’

Memories … Light the Corners of My Verification Space

Tuesday, December 17th, 2013

With due apologies to Barbra Streisand, the topic of today’s blog post is the verification of SoC memories and memory subsystems. Once upon a time, memories were considered just about the easiest design structure to verify. A simple automated test doing “walking 1s” and “walking 0s” supplemented by some random reads and write to random addresses with random data seemed to be good enough.

“Can it be that it was all so simple then? Or has time re-written every line?” Actually, it really was that simple back then. But a lot of changes in memory subsystems have come along to complicate matters: memory regions, caches, multi-processor designs, shared memory, complex memory maps, etc. Verification of memories today is much more challenging, with many corner cases to be exercised, but it’s an essential part of the overall SoC verification effort.

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