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Memory access control method

A control method and memory technology, applied in static memory, digital memory information, information storage, etc., can solve the problem that the memory cannot be upwardly compatible with the memory transmission architecture, and achieve the effect of maintaining system performance

Active Publication Date: 2014-03-19
NAN YA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention is a memory access control method, which is used to solve the problem that the memory containing the CRC function cannot be upwardly compatible with the old memory transmission architecture

Method used

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Embodiment Construction

[0037] In the embodiments of the present invention, a memory control method and memory architecture are disclosed, and it can be determined whether to enable / disable the CRC function of the next-generation memory architecture according to the situation. It is best to activate the CRC function when all the memory modules in the system can support the CRC function to increase system performance. In other words, when only one memory module in the system cannot support the CRC function, it is best not to enable the CRC function to avoid errors.

[0038] Please refer to figure 1 , Which shows a simplified schematic diagram of the memory 100. Of course, the memory 100 has other I / O pins, but for simplicity of description, the other I / O pins are not shown.

[0039] Such as figure 1 As shown, the I / O pins of the memory 100 include at least: an address pin, which can receive an address signal on the address bus ADD_BUS; a command pin, which can receive a command bus CMD_BUS (including An...

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Abstract

The invention provides a memory control method. A read write command is decoded to generate a mode memory setup signal; when the mode memory setup signal is enabled, a flip-latch outputs a memory vault selection signal; afterwards, the memory vault selection signal is decoded to generate a register selection signal. The register selection signal can select a register so as to write an address signal into the selected register. And the value of a certain register can be used for determining whether an error checking function is enabled. Therefore, the next-generation memory framework which supports the CRC function can be compatible with the original memory framework.

Description

Technical field [0001] The present invention relates to a memory access control method, and more particularly to a memory access control method that can determine whether to perform cyclic redundancy check (CRC). Background technique [0002] In communication systems or computer systems, cyclic redundancy check (CRC) can be used to improve error checking capabilities. After data transmission or data storage, CRC can be used to check whether errors occur during data transmission. In the process of data transmission, both receiving and sending parties need to perform CRC calculations, and then one of the parties can compare the CRC calculation results calculated by both parties to know whether the received data has errors. [0003] As the data transmission speed of the computer system becomes faster and faster, the existing memory architecture can no longer guarantee the correct rate of the data transmission of the memory. Therefore, in the next-generation memory architecture, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C29/42G11C7/10
Inventor 宁树梁刘维理
Owner NAN YA TECH