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Memory management method, memory storage device and memory control circuit unit

A memory management and control circuit technology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve the frequent data movement of memory storage devices, increase of write amplification, and reduce the service life of memory storage devices, etc. question

Active Publication Date: 2020-03-24
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some cases, the host system may send multiple specific commands within a short period of time, causing the memory storage device to frequently perform data movement
As a result, write amplification can increase significantly and reduce the lifespan of memory storage devices

Method used

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  • Memory management method, memory storage device and memory control circuit unit
  • Memory management method, memory storage device and memory control circuit unit
  • Memory management method, memory storage device and memory control circuit unit

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Experimental program
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Embodiment Construction

[0098] Generally speaking, a memory storage device (also called a memory storage system) includes a rewritable non-volatile memory module (rewritable non-volatile memory module) and a controller (also called a control circuit). Typically memory storage devices are used with a host system so that the host system can write data to or read data from the memory storage device.

[0099] figure 1 It is a schematic diagram showing a host system, a memory storage device and an input / output (I / O) device according to an exemplary embodiment of the present invention. figure 2 It is a schematic diagram showing a host system, a memory storage device and an I / O device according to another exemplary embodiment of the present invention.

[0100] Please refer to figure 1 and figure 2 , the host system 11 generally includes a processor 111 , a random access memory (random access memory, RAM) 112 , a read only memory (read only memory, ROM) 113 and a data transmission interface 114 . The p...

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PUM

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Abstract

Embodiments of the invention provide a memory management method for a rewritable non-volatile memory module. The method comprises the following steps: receiving a first type of instructions from a host system and temporarily storing the first type of instructions in a first instruction queue; after the first type of instructions are received, receiving a second type of instructions from the host system and temporarily storing the second type of instructions in a second instruction queue; if the first instruction queue meets the preset condition, executing a programming operation according to afirst type of instructions in the first instruction queue so as to program the rewritable nonvolatile memory module; and after the programming operation is executed, transmitting response informationcorresponding to the second type of instructions in the second instruction queue to the host system. In addition, the embodiment of the invention also provides a memory storage device and a memory control circuit unit.

Description

technical field [0001] The invention relates to a memory management technology, in particular to a memory management method, a memory storage device and a memory control circuit unit. Background technique [0002] Digital cameras, mobile phones, and MP3 players have grown rapidly in recent years, making consumers' demand for storage media also increase rapidly. Since the rewritable non-volatile memory module (for example, flash memory) has the characteristics of data non-volatility, power saving, small size, and no mechanical structure, it is very suitable for built-in Among the various portable multimedia devices listed above. [0003] During the operation of the memory storage device, the host system can issue specific instructions to the memory storage device to instruct the memory storage device to move all the data in the buffer memory to the rewritable non-volatile memory module. Generally speaking, the memory storage device will move the data in the buffer memory ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0616G06F3/0679G06F3/0659Y02D10/00
Inventor 陈振业
Owner PHISON ELECTRONICS