HASH FUNCTIONS USED TO TRACK VARIANCE PARAMETERS OF RESISTANCE-BASED MEMORY ELEMENTS

摘要

Parameters indicative of resistance variance of the memory elements are tracked. The resistance variance affects values of data stored in the resistance-based memory elements. A hash function is performed for each memory element. The hash function returns a reference to one of a plurality of counter elements. A value of each counter element is modified in response to the tracked parameter data of the associated memory element. Read operations affecting the memory elements are adjusted based on the values for the associated counter elements.

主权项

1. An apparatus comprising:
a controller coupled to a plurality of resistance-based memory elements, the controller configured to perform:
tracking parameter data indicative of resistance variance of the memory elements, the resistance variance affecting values of data stored in the memory elements;performing a hash function for each memory element, the hash function returning a reference to one of a plurality of counter elements;modifying a value of each counter element in response to the tracked parameter data of the associated memory element; andadjusting read operations affecting the memory elements based on the values for the associated counter elements.