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Memory storage device, its memory controller and data writing method

A memory controller and data writing technology, applied in memory systems, electrical digital data processing, instruments, etc., can solve problems such as taking more time to read and operate, and achieve the effect of increasing speed

Active Publication Date: 2016-09-14
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above method can increase the speed of data writing, if the host system wants to read a large amount of data at a time, it may take more time to complete the read operation because the data is scattered on different physical pages

Method used

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  • Memory storage device, its memory controller and data writing method
  • Memory storage device, its memory controller and data writing method
  • Memory storage device, its memory controller and data writing method

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Embodiment Construction

[0043] 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.

[0044] Figure 1A It is a schematic diagram of a host system using a memory storage device according to an exemplary embodiment of the present invention.

[0045] The host system 1000 includes a computer 1100 and an 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 are shown. It is important to understand that Figure 1B The devices shown are not limited to the input / output device ...

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Abstract

A data writing method, the method includes configuring a plurality of logic programming units to map part of the physical programming units of the rewritable non-volatile memory module, and dividing each logic programming unit into a plurality of logic management units, each logic management unit The size of the unit is equal to the basic access unit of the host system. The method includes receiving the first data from the host system, and judging whether the logical starting address of the first data located in the first logical programming unit is not aligned with the starting addresses of each logical management unit of the first logical programming unit and / or located in Whether the logical end address of the first data of the first logical programming unit is not aligned with the end addresses of each logical management unit of the first logical programming unit. If yes, fill the first data with second data larger than the basic access unit.

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 storage device and a memory controller using the method. Background technique [0002] Rewritable non-volatile memory (rewritable non-volatile memory) has the characteristics of data non-volatility, power saving, small size and no mechanical structure, so it is widely used in digital cameras, mobile phones and MP3 etc. Portable Electronic Devices. A solid state drive is a storage device that uses flash memory as a storage medium. [0003] Generally speaking, the flash memory module of the flash memory storage device will be divided into multiple physical blocks, wherein the physical block is also divided into multiple physical pages, and the physical block is the erasing unit of the flash memory and the physical page is the writing unit of the flash memory . Since only one-way programming (that is, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F12/0862G06F12/0888
Inventor 叶志刚
Owner PHISON ELECTRONICS
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