Data preprocessing device, method and asynchronous double-terminal random access memory system

Abstract

The present invention provides a data preprocessing device, method and asynchronous double-terminal random access memory system; wherein, the device includes a first read-write control circuit, a first data buffer circuit, a second data buffer circuit and a second data buffer circuit connected sequentially. Two read-write control circuit; the first data cache circuit is used to receive and cache the first write request; the first read-write control circuit is used to store the first write data in asynchronous double-ended random access according to the first data address In the memory; the second data cache circuit is used to receive and cache the first write request; the second read-write control circuit is used to receive the first read-out request, and according to the preset number of writes cached in the second data cache circuit request and internal data of the asynchronous double-terminal random access memory, and output the data corresponding to the first read request. The invention improves the working efficiency of the asynchronous double-terminal random access memory.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a data preprocessing device, method and asynchronous double-terminal random access memory system. Background technique [0002] Dual-port RAM (Random Access Memory, random access memory)) has two sets of completely independent data lines, address lines and read and write control lines on a SRAM (Static Random Access Memory, static random access memory), and allows two independent systems At the same time, the memory is randomly accessed, that is, a shared multi-port memory. [0003] The problem to be paid attention to in the use of dual-port RAM is how to avoid the contention of the same RAM storage unit at both ends; usually, the anti-collision method of inserting wait state, signal light anti-collision method or interrupt anti-collision method is used to solve this problem. However, for the asynchronous double-ended RAM, the work efficiency of the above several anti-collisio...

AI Technical Summary

Problems solved by technology

However, for asynchronous double-ended RAM, the work efficiency of the above-mentioned anti-collision methods is low

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