Flash memory architecture with separate storage of overhead and user data

摘要

A memory device has a plurality of dedicated data blocks for storing user data and a plurality of dedicated overhead blocks for storing overhead data. A dedicated overhead block of the plurality of dedicated overhead blocks has a plurality of overhead segments. The overhead segments have physical block address registers configured to store physical block addresses defining respective dedicated data blocks.

主权项

1. A memory device, comprising:
a plurality of dedicated data blocks for storing user data, wherein each of the plurality of dedicated data blocks is at a respective location in the memory device that is identified by a respective single physical block address; and a plurality of dedicated overhead blocks for storing overhead data, wherein each of the plurality of dedicated overhead blocks is at a respective location in the memory device that is identified by a respective single physical block address; wherein a dedicated overhead block of the plurality of dedicated overhead blocks comprises a plurality of overhead segments, wherein each of the plurality of overhead segments comprises a physical block address register configured to store the respective single physical block address that identifies the respective location in the memory device of a data block of the plurality of dedicated data blocks.