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Apparatus and method for adaptive controlling flash storage interface reading and writing speed

A technology of adaptive control and read/write speed, applied in the field of flash memory, it can solve the problems of flash memory speed and inconvenience, and achieve the effect of speeding up the interface read and write speed.

Inactive Publication Date: 2007-11-07
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this way, it is very inconvenient to use flash memory with multiple transmission speeds in an application environment that lacks configuration tools; and if a fixed lower interface speed is used, the faster flash memory will not be able to exert its superiority in speed

Method used

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  • Apparatus and method for adaptive controlling flash storage interface reading and writing speed
  • Apparatus and method for adaptive controlling flash storage interface reading and writing speed
  • Apparatus and method for adaptive controlling flash storage interface reading and writing speed

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Embodiment Construction

[0040] According to the device and method for adaptively controlling the reading and writing speed of the flash memory interface provided by the present invention, by writing and reading the check code to the blank area of ​​the flash memory, and judging the correctness of the read check code, thereby judging whether there is a reading and writing error phenomenon, When the check code is correct, adjust the read-write setup time and hold time faster until a read-write error occurs, so as to speed up the read-write speed of the flash memory interface.

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0042] FIG. 1 is a schematic diagram of a device for adaptively controlling the reading and writing speed of a flash memory interface provided by the present invention.

[0043] As shown in FIG. 1 , the d...

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Abstract

This invention provides a device and a method for controlling read-write speed of flash interfaces adaptively, which reads and writes data to a flash blank region and judges if wrong read-write appears, if there is not error, it reduces the set-up and kept time to flash read-write waveforms till read-write errors appear so as to speed up read-write speed of flash interfaces.

Description

technical field [0001] The invention relates to the technical field of flash memory, in particular to a device and method for adaptively controlling the interface speed of a flash memory. Background technique [0002] At present, with the development of science and technology, for storage media, the improvement of memory access speed is a matter of great concern to people. Since there are many manufacturers of storage media, there are also many types and models of storage media. There are hundreds of types of NAND FLASH flash memory alone. However, the interface protocols and speed timing requirements of the products of various manufacturers are not the same. In order to be compatible with different types of memory, the chip controller needs to configure appropriate instructions and interface transmission speeds according to different memory interface protocols. In the prior art, it is usually necessary for the user to configure the controller so that the chip controller c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C16/06G11C29/00
Inventor 张浩李国新
Owner VIMICRO CORP
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