Addressing method and module applied to on-chip control system and on-chip control system

Abstract

The invention discloses an addressing method and module applied to an on-chip control system and the on-chip control system. The on-chip control system comprises a central processing unit, a control program processor and a memory; the central processing unit directly addresses the memory through the real physical address; the control program processor addresses an instruction address space or a data address space of the memory through address conversion of a logic address, and the addressing method comprises the following steps: S1, receiving the logic address of a to-be-executed instruction or to-be-processed data in a control program, wherein the logic address comprises a segment number and an in-segment offset; S2, querying a pre-stored segment table according to the segment number, andobtaining an initial physical address; S3, acquiring an actual physical address according to the intra-segment offset and the initial physical address, and accessing the memory according to the actual physical address. According to the method, the problem that a von Neumann structure may cause information flow access bottlenecks of a CPU and a control program processor to a memory is solved, andthe addressing efficiency and stability of the system are improved.

Description

technical field [0001] The invention belongs to the technical field of on-chip control systems, and in particular relates to an addressing method, a module and an on-chip control system applied to the on-chip control system. Background technique [0002] The storage structure of the current system-on-chip (SoC) is usually divided into a von Neumann structure and a Harvard structure. [0003] The von Neumann architecture, also known as the Princeton architecture, is a memory structure that combines program instruction memory and data memory. Program instruction storage addresses and data storage addresses point to different physical locations in the same memory, so program instructions and data have the same width. Von Neumann defined three basic principles of computer manufacturing, namely, the use of binary logic, program storage and execution, and the computer is composed of five parts (calculator, controller, memory, input device, output device). [0004] In order to av...

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Problems solved by technology

[0007] The present invention provides an addressing method, a module and an on-chip control system applied to an on-chip control system in order to solve the problem that the above-mentioned Von Neumann structure may cause a bottleneck in the information flow access of the CPU and the control program processor to the memory

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