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Data memory method for flash memory device

A data storage and storage device technology, which is applied in the field of storage devices, can solve the problem of wasting erasing times, and achieve the effect of avoiding the waste of erasing times

Inactive Publication Date: 2009-06-24
APACER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And if the amount of continuous data written in this pen is very large, the number of erasing times wasted is very considerable

Method used

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  • Data memory method for flash memory device
  • Data memory method for flash memory device
  • Data memory method for flash memory device

Examples

Experimental program
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no. 1 example

[0036] See first figure 2 , is a structural diagram of the storage device of the present invention, the storage device 1 mainly includes a processor 11, a random access memory (RAM, Random Access Memory) 12, a flash memory (Flash Memory) 13, and a program unit 14. Wherein, the program unit 14 is a firmware program stored in a read only memory (ROM, Read Only Memory) in the storage device 1 or the flash memory 13 , but it is not limited thereto.

[0037] When the external host 2 is connected to the storage device 1 and intends to store data to the storage device 1, the external host 2 sends at least one storage command with a logic block address and a total number of segments of a piece of data to the storage device 1, and Stored in the address temporary storage area, the processor 11 receives the storage command and the logical block address (LBA, Logical Block Address) issued by the host computer 2, and the processor 11 starts the program unit 14 after receiving the storage ...

no. 2 example

[0046] The above-described embodiment is mainly used to process continuous data, but still cannot process random data, because random data is a single small data, and the access rate is very high, so the erasure rate caused by it is also quite high, as To solve this problem, the present invention also proposes another embodiment, such as Figure 5 As shown, a volatile additional memory (Volatility memory) 15 is set in the storage device 1, and these random data are processed by virtue of the feature that the volatile additional memory 15 does not have an upper limit for erasing times, and the external host 2 issues commands and interrupts. When the electricity or the internal space of the additional memory 15 is full, reorganize, and write the data temporarily stored in the additional memory 15 into the flash memory 13 . In addition, a charging device 16 is added, such as a battery, a capacitor, etc., to provide power to the additional memory 15, so that data can continue to e...

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Abstract

The invention provides a data storage method of a flash memory storage device. An address temporary storage area is arranged in the memory of the storage device to store data information. When an external host computer stores first data to the storage device, the data are judged by the address temporary storage area that whether the data is part of a series of continuous data, is yes, continuous second data, third data and the like follow the transmission of the data, so that instead of carrying out immediate reforming after the first data is written in the flash memory of the storage device, the immediate reforming is carried out after the series of data are completely transmitted, thereby effectively reducing removal times of the flash memory.

Description

technical field [0001] The present invention relates to a storage device, in particular to a flash memory storage device. Background technique [0002] In recent years, the development of flash memory (Flash memory) is very rapid, and its application in storage devices is changing with each passing day. The popularity of various memory cards (Memory card) and flash drives (Flash drive) is no longer a problem. As technology matures and costs decrease day by day, various manufacturers have also begun to invest a lot of resources in researching the wider application of flash memory, such as solid-state disk (SSD, Solid-State Disk), which is a purely electronic hard disk drive with flash memory as storage media. , and it still retains the characteristics of fast flash memory access speed, low power consumption, low calorific value, light weight, low vibration and vibration resistance, and can be used in harsh environments where traditional magnetic hard disk drives are not compe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02G06F12/06
Inventor 许峻维
Owner APACER