A dual-port SRAM access control system and method based on bandwidth expansion cross addressing

Abstract

The invention discloses a dual-port SRAM access control system and method based on bandwidth expansion cross addressing. The system comprises an on-chip memory bank, two chip selection generating units, a cross addressing access processing unit, a data alignment control unit, a data splicing unit and a variable capacity buffer area. The method comprises a host access control interface access method and a multi-hardware access control interface access method. The on-chip memory bank, the data alignment unit and the cross-addressing access unit realize the parallel access of multiple dual-port SRAM at the same time, save time, realize the compact storage of on-chip memory bank, achieve the most efficient use of memory space, avoid the problem of simultaneous access collision, and ensure theefficient work of the whole system maximally; At that same time, the invention has simple and clear design structure, flexible and efficient control, strong universality of multi-device access cross address, convenient portability of variable bandwidth access and easy implementation, and can be widely used in embed system chips and application specific integrated circuits.

Description

technical field [0001] The invention belongs to the field of integrated circuit design, and relates to a dual-port SRAM access control system and method based on bandwidth expansion cross addressing. Background technique [0002] In recent years, with the rapid development of semiconductor technology, the scale and performance requirements of integrated circuits have been continuously improved. In the design process of embedded system chip (SoC) and application specific integrated circuit (ASIC), large-capacity on-chip SRAM is usually used to Realize the storage of instructions and data, and realize fast and efficient access to the on-chip SRAM at the same time. Based on such requirements, the method of designing an on-chip SRAM controller is generally used to complete the read and write access to the SRAM. [0003] In the current design, there are roughly three controller design methods: (1) A controller designed for a commonly used single-port SRAM. The structure of the ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a dual-port SRAM access control system and method based on bandwidth expansion cross addressing, which can not only coordinate multi-device access for cross addressing control, but also adapt to bandwidth In addition, it can realize compact storage of storage space, thereby improving the efficiency and flexibility of access, and at the same time, it can solve the problems of high design complexity, high power consumption and area overhead of the existing structure, etc.

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