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Buffer memory management method, memory controller and memory storage device

A memory controller and buffer memory technology, applied in memory systems, instruments, electrical digital data processing, etc., can solve problems such as inability to execute sorting programs, and achieve the effect of fast available storage space

Active Publication Date: 2013-07-24
PHISON ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the memory space in the buffer memory is insufficient, the above-mentioned sorting procedure cannot be performed

Method used

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  • Buffer memory management method, memory controller and memory storage device
  • Buffer memory management method, memory controller and memory storage device
  • Buffer memory management method, memory controller and memory storage device

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Embodiment Construction

[0080] Generally speaking, a memory storage device (also called a memory storage system) includes a 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.

[0081] Figure 1A It is a host system and a memory storage device according to an exemplary embodiment.

[0082] 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, w...

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Abstract

The invention discloses a method for managing a buffer memory in a memory storage device, and the buffer memory is configured in the memory storage device which is provided with a programmable and non-volatile memory module. The method comprises the following step of transmitting temporarily-stored data which is temporarily stored in the buffer memory into the buffer area of the programmable and non-volatile memory module by a pre-programmed command group, wherein the temporarily-stored data can not be programmed into the storage area of the programmable and non-volatile memory module. The method further comprises the steps of releasing a storage space in the buffer memory for storing the temporarily-stored data; and re-loading the temporarily-stored data from the buffer area to the storage space of the buffer memory. According to the method, a usable storage space of the buffer memory can be temporarily added so as to meet the requirement of extra operation. The invention further discloses a memory controller and a memory storage device.

Description

technical field [0001] The present invention relates to a technique for managing a buffer memory, in particular to a buffer memory management method capable of temporarily increasing the memory space of the buffer memory, and a memory controller and a memory storage device using the method. 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 rewritable non-volatile memory (rewritable non-volatile memory) has the characteristics of data non-volatility, power saving, small size, no mechanical structure, fast read and write speed, etc., it is most suitable for portable electronic products, such as laptop. A solid state drive is a memory storage device that uses fast memory as a storage medium. Therefore, the fast memory industry has become a very popular part of the electronics industry in recent years. [0003] In a memory storage device that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/08G06F13/16G06F12/0871
Inventor 叶志刚
Owner PHISON ELECTRONICS
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