Data writing method, memory controller and memory storage device

A technology for memory controller and data writing, applied in the direction of memory address/allocation/relocation, etc.

Active Publication Date: 2014-08-13
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the speed of writing data in the rewritable non-volatile memory module is already greater than the transmission speed of the t

Method used

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  • Data writing method, memory controller and memory storage device
  • Data writing method, memory controller and memory storage device
  • Data writing method, memory controller and memory storage device

Examples

Experimental program
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Embodiment Construction

[0084] 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.

[0085] Figure 1A is a schematic block diagram of a host system and a memory storage device shown in an exemplary embodiment.

[0086] Figure 1B is a schematic diagram of a computer, input / output devices, and memory storage devices shown in an exemplary embodiment.

[0087] Figure 1C It is a schematic diagram of a host system and a memory storage device shown in an exemplary embodiment.

[0088] 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 , ...

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Abstract

The invention provides a data writing method, a memory controller and a memory storage device. The method is used for controlling a rewritable nonvolatile memory module, which comprises two storage memory cells. The method comprises the following steps of: configuring a plurality of logical addresses to be mapped to at least part of entity erasing units in the two memory cells; receiving a writing command from a host system, which indicates that the data are written in one logical address; writing the data in one entity erasing unit in the two memory cells; judging which memory cell does the entity erasing unit belong to; if the entity erasing unit belongs to one memory cell, erasing one entity erasing unit in the other memory cell when the data are written in. therefore, the speed that the data are written in the memory storage device by the host system can be increased.

Description

technical field [0001] The present invention relates to a data writing method, and in particular to a data writing method for a rewritable non-volatile memory module, a memory controller and a memory storage device. 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 being built into various portable multimedia devices listed above. device. [0003] Generally, the rewritable non-volatile memory module can be electrically connected to a host system through a transmission interface. The host system can write data to the rewritable non-volatile memory module through the transmission interface. Moreover, the rewritable non-volatile memory module inclu...

Claims

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Application Information

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IPC IPC(8): G06F12/02
Inventor 黄意翔
Owner PHISON ELECTRONICS
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