A SOC storage system based on embedded spin-transfer torque magnetic random access memory

Abstract

The invention discloses a SoC storage system based on an embedded spin transfer torque magnetic random access memory, comprising: a memory control module and an eSTT-MRAM; the memory control module is used to respectively use three sets of memory control signals to perform the operation on the eSTT-MRAM. Instruction fetching, reading and writing, and program download operations complete the time-division multiplexing of the eSTT-MRAM; the eSTT-MRAM is used to polarize the current to form a spin current, and convert the spin torque through the spin electrons in the spin current. The magnetic moment transferred to the free layer makes it rotate according to the direction of the spin current, realizing the writing of information "0" or "1", and the storage speed is fast. By dividing the eSTT‑MRAM into more functional areas, the functions performed by different types of traditional memories in the SoC are concentrated on a single eSTT‑MRAM to realize a single storage system with more complex functions, which greatly improves the storage speed of the system. 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 purpose is to solve the problem of data and program in the prior art due to the use of multi-layer storage systems. The problem of slow storage speed caused by the need to transfer between various memories

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