AXI bus isolation protection structure and protection method thereof

Abstract

The invention discloses an AXI bus isolation protection structure and a protection method thereof. An AXI Master interface logic isolation unit is arranged between a high-speed peripheral data interface and a high-speed data memory, and an AXI Slave interface logic isolation unit is arranged between the high-speed peripheral data interface and main control equipment; when the high-speed peripheraldata interface works normally, the AXI Master interface logic isolation unit and the AXI Slave interface logic isolation unit do not act; and after the high-speed peripheral data interface is thermally reset, the AXI Master interface logic isolation unit is used for isolating the AXI Master interface of the high-speed peripheral data interface to ensure the correctness of the data transmission time sequence of the AXI Master interface, and the AXI Slave interface logic isolation unit is used for isolating the AXI Slave interface of the high-speed peripheral data interface to ensure the correctness of the data transmission time sequence of the AXI Slave interface. The invention not only protects the system bus, but also guarantees the functional correctness of the read-write high-speed data memory, and can be applied to SOC design to form an on-chip bus system architecture.

Description

technical field [0001] The invention relates to the technical field of AXI bus, in particular to an AXI bus isolation protection structure and a protection method thereof after a high-speed peripheral data interface is thermally reset. Background technique [0002] Embedded system is one of the hot spots in the development of today's computer industry. With the rapid development of VLSI, the semiconductor industry has entered the deep submicron era. The feature size of devices is getting smaller and the chip scale is getting bigger and bigger. Integrated millions to hundreds of millions of transistors. Such a dense integration allows us to integrate functions that could only be realized by several chips such as CPU and several I / O interfaces on a small chip, and form a powerful and complete system from a single integrated circuit, which is What we usually call system-on-a-chip SOC. SOC has gradually become the mainstream of embedded system development. [0003] SOC design...

AI Technical Summary

Problems solved by technology

[0007] Aiming at various risk problems that may be caused by high-speed peripheral data interface thermal reset in the prior art, the present invention proposes an AXI bus isolation protection structure and protection method after high-speed peripheral data interface thermal reset

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