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Data access method, memory controller using same and storage device using same

A memory controller, data access technology, applied in the direction of memory address/allocation/relocation, etc., can solve the problems of long time, timeout, and the foreground thread module cannot respond to the host system in real time, so as to avoid the problem of timeout. Effect

Active Publication Date: 2015-06-10
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the foreground thread module may also need to execute the data merge program before executing the write command. Therefore, the time required to execute the write command will become quite long, making the foreground thread module unable to respond to the host system in real time. , causing a time out problem

Method used

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  • Data access method, memory controller using same and storage device using same
  • Data access method, memory controller using same and storage device using same
  • Data access method, memory controller using same and storage device using same

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Embodiment Construction

[0084] First Exemplary Embodiment

[0085] Figure 1A A host system and a memory storage device are shown according to a first exemplary embodiment of the present invention.

[0086] Please refer to Figure 1A , the host system 1000 generally includes a computer 1100 and an input / output (input / output, I / O) device 1106 . The computer 1100 includes a microprocessor 1102 , a random access memory (random access memory, RAM) 1104 , a system bus 1108 and a data transmission interface 1110 . The input / output device 1106 includes such as Figure 1B mouse 1202, keyboard 1204, monitor 1206 and printer 1208. It is important to understand that Figure 1B The devices shown are not limited to the input / output device 1106, which may also include other devices.

[0087] In the embodiment of the present invention, the memory storage device 100 is electrically connected with other components of the host system 1000 through the data transmission interface 1110 . Data can be written into or ...

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Abstract

The invention discloses a data access method, a memory controller using the same and a storage device using the same. The method, the controller and the device are used for accessing data on a rewritable nonvolatile memory module through a first thread module and a second thread module by a single data bus. The method comprises the following steps of: designating an access execution right to the second thread module to write page data; when the second thread module writes the page data with preset amount into entity pages with preset amount, judging whether an access instruction which should be executed by the first thread module is received or not; and when the access instruction which should be executed by the first thread module is received, designating the access execution right to the first thread module to execute the access instruction in a foreground mode, wherein the second thread module executes operation which is being carried out, in a background mode. Therefore, by the method, the time-out problem which is caused by the first thread module which does not response in real time can be effectively solved.

Description

technical field [0001] The present invention relates to a data access method, and in particular to a data access method for accessing a rewritable non-volatile memory module through multiple thread modules, and a memory controller and memory using the method storage device. Background technique [0002] The rapid growth of digital cameras, mobile phones, and MP3 players has led to a rapid increase in consumer demand for storage media. Since rewritable non-volatile memory (rewritable non-volatile memory) has the characteristics of data non-volatility, power saving, small size, no mechanical structure, and fast read and write speed, it is most suitable for portable electronic products, such as notebooks. type computer. A solid state drive is a storage device that uses flash memory as a storage medium. Therefore, the flash memory industry has become a very popular part of the electronics industry in recent years. [0003] The rewritable non-volatile memory storage device ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02
Inventor 詹清文
Owner PHISON ELECTRONICS