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SDRAM control method and system

A control method and control system technology, applied in the field of SDRAM control method and its system, can solve the problems of low SDRAM control efficiency and achieve the effect of improving control efficiency and reducing interval time

Inactive Publication Date: 2016-02-03
GUANGZHOU ZHOULIGONG SCM DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the problem of low SDRAM control efficiency existing in the above-mentioned prior art, the purpose of the present invention is to provide a kind of SDRAM control method and its system, can improve the control efficiency of SDRAM

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  • SDRAM control method and system
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  • SDRAM control method and system

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Embodiment Construction

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] see figure 1 A schematic flow chart of an SDRAM control method in one embodiment.

[0020] A SDRAM control method, comprising:

[0021] S102. Receive various instructions for reading and writing data on the SDRAM.

[0022] In this step, the efficiency of receiving instructions is improved by receiving instructions for reading and writing data on the SDRAM.

[0023] S104. At least two preset memory banks sequentially store data corresponding to each instruction in a loop.

[0024] Each memory bank of SDRAM stores data. The traditional way is: the first memory bank stores data first. When the first memory bank is full, the second memory bank stores the remaining data, and so on until all data is stored. . Due to the characteristics of SDRAM itself, it i...

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PUM

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Abstract

The invention provides an SDRAM control method and system. The method comprises: receiving each instruction for performing data reading / writing on an SDRAM, wherein at least two preset memory banks cyclically store data corresponding to each instruction in sequence; and performing a reading / writing operation on the data corresponding to each instruction according to each instruction, wherein before a current memory bank performs the data reading / writing operation, an activation operation of data in a next memory bank is performed, and the data reading / writing of the next memory bank is performed after the activation operation, so that the interval time for memory bank access is shortened and the SDRAM control efficiency is improved.

Description

technical field [0001] The invention relates to the SDRAM field, in particular to an SDRAM control method and a system thereof. Background technique [0002] SDRAM (SynchronousDynamicRandomAccessMemory, synchronous dynamic random access memory) storage space is composed of multiple memory banks (BANK), and the number of general memory banks varies from 2, 4, and 8. [0003] The current SDRAM control method is to access these memory banks sequentially. Taking writing data as an example, the situation of sequential access is that when the first memory bank is filled, the address will jump to the second memory bank. Continue with the write operation. The characteristics of SDRAM itself determine that it needs to refresh itself every 64ms, and access to SDRAM is prohibited during the self-refresh process, so the sequential access control method, even if the data is in the first memory bank, still needs to wait for the refresh operation of other memory banks . [0004] Moreove...

Claims

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Application Information

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IPC IPC(8): G06F13/16
CPCG06F13/1689
Inventor 周立功
Owner GUANGZHOU ZHOULIGONG SCM DEV