SSD XOR XOR-Based Scrambler/Descrambler for SSD Communication Protocols

摘要

An example embodiment of descrambling and scrambling a memory channel includes executing a training mode. A training mode is run on the memory device to find the XOR vectors used by the host system to scramble the data. The finding of the XOR vectors is performed by inputting all zero training data to a scrambling algorithm for all memory locations of the memory device to generate scrambled training data, and the scrambled training data is transmitted to a memory channel of the memory device. and the scrambled training data is equal to the XOR vectors corresponding to the memory locations. The finding also includes receiving, by the memory device, the scrambled training data of the memory channel, and storing the scrambled training data as XOR vectors for each of the corresponding memory locations. It also includes receiving scrambled data and using the stored XOR vector for the particular memory location to descramble the scrambled data.