Intel Corporation
DATA SCRAMBLER TO MITIGATE ROW HAMMER CORRUPTION

Abstract:

A memory system includes a memory device having a memory array that stores data based on address bits, including a row address. The memory system includes a memory controller having scrambler circuitry to apply a data mask to scramble data to be stored in the memory array. The scrambler can apply the data mask to scramble data for a write operation. The data scrambler can unscramble data for a read operation. The data mask has a pseudorandom pattern based at least in part on the row address of the data to be written or read.