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Free-p: A Practical End-to-End Nonvolatile Memory Protection Mechanism
May/June 2012 (vol. 32 no. 3)
pp. 79-87
Doe Hyun Yoon, Hewlett-Packard Labs
Naveen Muralimanohar, Hewlett-Packard Labs
Jichuan Chang, Hewlett-Packard Labs
Parthasarathy Ranganathan, Hewlett-Packard Labs
Norman P. Jouppi, Hewlett Packard
Mattan Erez, University of Texas at Austin
Free-p—fine-grained remapping with error checking and correcting (ECC) and embedded pointers—remaps worn-out nonvolatile RAM (NVRAM) blocks at a fine granularity without requiring large dedicated storage and protects NVRAM against both hard and soft errors. Furthermore, Free-p can be implemented purely in the memory controller, avoiding custom NVRAM devices.
Index Terms:
error correction codes, nonvolatile memory, phase-change random access memory, reliability, resistance, memory
Doe Hyun Yoon, Naveen Muralimanohar, Jichuan Chang, Parthasarathy Ranganathan, Norman P. Jouppi, Mattan Erez, "Free-p: A Practical End-to-End Nonvolatile Memory Protection Mechanism," IEEE Micro, vol. 32, no. 3, pp. 79-87, May-June 2012, doi:10.1109/MM.2012.15
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