METHODS AND SYSTEMS FOR NONVOLATILE MEMORY DATA MANAGEMENT

摘要

A system includes a first resistive nonvolatile memory array, a second transistor-based nonvolatile memory array and a memory controller. The memory controller is configured to write data of the first resistive nonvolatile memory array together with an indicator bit to the second transistor-based nonvolatile memory array, determine whether the indicator bit is valid in response to a power up of the system after a high-temperature event, a received command after a high-temperature event, a predetermined number of power ups, or a power up or received command after each of a predetermined number of high-temperature events and write back the data stored in the second transistor-based nonvolatile memory array to the first resistive nonvolatile memory array when the indicator bit is valid.