MEMORY DEVICE FOR HIERARCHICAL MEMORY ARCHITECTURE

摘要

PROBLEM TO BE SOLVED: To provide a memory device for a hierarchical memory architecture that solves the problem of current microprocessors where the data transaction between the CPU and/or core logic and system memory becomes the bottleneck of system performance.

SOLUTION: A hierarchical memory device having multiple interfaces with different memory formats includes a Phase Change Memory (PCM). An input port and an output port connect the hierarchical memory device in a daisy-chain hierarchy or a tree structure with other memories. Standard non-hierarchical memory devices can also be attached to the output port of the hierarchical memory device.

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