SoC storage system based on embedded spin transfer torque magnetic random access memory

Abstract

The invention discloses an SoC storage system based on an embedded spin transfer torque magnetic random access memory. The SoC storage system comprises a memory control module and an eSTT-MRAM; the memory control module is used for performing instruction fetching, reading and writing and program downloading operations on the eSTT-MRAM by adopting three groups of memory control signals respectivelyto finish time division multiplexing of the eSTT-MRAM; and the eSTT-MRAM is used for polarizing the current to form a spin current, and transmitting the spin torque to the magnetic torque of the freelayer through spin electrons in the spin current, so that the magnetic torque rotates according to the direction of the spin current, the written information '0' or '1' is realized, and the storage speed is high. The eSTT-MRAM is divided into more functional areas, and functions executed by different types of traditional memories in the SoC are integrated on one eSTT-MRAM, so that a single storage system with more complex functions is realized, the storage speed of the system is greatly increased, and the area of the storage system is reduced.

Description

technical field [0001] The invention belongs to the field of memory applications, and more particularly relates to a system on chip (SoC) storage system based on an embedded spin-transfer torque Magnetic RAM (Embedded Spin-transfer torque Magnetic RAM, eSTT-MRAM). Background technique [0002] The emergence of SoC technology has changed the design concept of traditional embedded systems, and the design technology based on IP core has become the mainstream of embedded system design. One of the advantages of SoC is that it can use a combination of software and hardware to realize various complex functions, and combine the advantages of high efficiency and fast hardware implementation with simple software implementation and low cost, in order to achieve performance and cost. compromise. In SoC, the storage system is the link between hardware and software. The processor reads the program from the storage system and controls the hardware by executing the program. During the exe...

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Problems solved by technology

[0005] For the above defects or improvement needs of the prior art, the present invention provides a SoC storage system based on embedded spin-transfer torque magnetic random access memory, and its purp

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