NAND flash memory has become an indispensable component in embedded systems because of its versatile features such as non-volatility, solid-state reliability, low cos,t and high density. Even though NAND flash memory gains popularity as data storage, it also can be exploited as code memory for XIP (execute-in-place). In this paper, we present a cost-efficient memory architecture which incorporates NAND flash memory into an existing memory hierarchy for code execution. The usefulness of the

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... sed approach is demonstrated with real embedded workloads on a real hardware prototyping board.