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Memory storage device, memory controller and data writing method

A technology of memory controller and data writing, which is applied in the direction of memory address/allocation/relocation, etc., and can solve the problems of operating system operation, information reply and judgment without data error

Active Publication Date: 2016-11-02
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if a data error is found when the solid-state hard disk is restarted and the physical page is scanned, the logical access address corresponding to the data cannot be judged from the information recorded in the physical page. Therefore, if the host system wants to Reading the logical access address may cause operational problems in the operating system of the host system due to failure to correctly reply data error information to the host system

Method used

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

Examples

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Embodiment Construction

[0063] Generally, a memory storage device (also called a memory storage system) includes a memory chip and a controller (also called a control circuit). Typically, a memory storage device is used with a host system so that the host system can write data to or read data from the memory storage device. In addition, there is also a memory storage device that includes an embedded memory and software that is executable on a host system to essentially serve as a controller of the embedded memory.

[0064] Figure 1A is a schematic diagram of a host system using a memory storage device according to an exemplary embodiment of the present invention.

[0065] The host system 1000 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...

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Abstract

A memory storage device, a memory controller and a data writing method. The memory storage device comprises a rewritable non-volatile memory chip with a plurality of entity units, and each entity unit comprises a plurality of entity pages. The method includes steps of: configuring multiple logic units to map part of the entity units, wherein each logic unit comprises a plurality of logical pages; receiving first write data from a host system and writing the first write data into a No. i entity page of a replacement entity unit extracted from the entity units; and writing first address access information corresponding to the first write data and second address access information into the No. i entity page, wherein i represents a positive integer.

Description

technical field [0001] The invention relates to a method for writing data, and in particular to a method for backing up data when writing data, as well as a memory storage device and a memory controller for implementing 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 various electronic devices. Among them, a solid state drive (SSD) is a storage device that uses a rewritable non-volatile memory as a storage medium, and has attracted more and more attention from consumers because of its advantages above. [0003] The rewritable non-volatile memory has multiple physical blocks, and each physical block has multiple physical pages. Wherein, the physical block is the smallest unit of data erasing, and the physical page is the smallest unit of data writing. The memory management circuit in the stora...

Claims

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Application Information

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