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Window substratum flash memory storage system, management method and access method thereof

An access method and basic technology, applied in response to error generation, memory address/allocation/relocation, redundant code for error detection, etc., can solve problems such as high instantaneous power consumption and lower access performance, and achieve The effect of faster startup speed and faster operation speed

Inactive Publication Date: 2007-07-04
SOLID STATE SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If there are more than 2 sectors to be read and written, the existing processing method is to process all stages of one sector and then start to process another sector, but this method will reduce the efficiency of access; or use two The flash memory of more than one different control unit is interleaved to increase the reading and writing performance, but this method has its limitations, and it will have a negative impact of excessive power consumption in an instant (Penalty)

Method used

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  • Window substratum flash memory storage system, management method and access method thereof
  • Window substratum flash memory storage system, management method and access method thereof
  • Window substratum flash memory storage system, management method and access method thereof

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Embodiment Construction

[0046] FIG. 1 shows a data structure diagram of a flash memory in a window-based flash memory storage system according to the present invention. The flash memory is composed of many blocks, and all the blocks can be divided into two parts: the window base area 120 and the extra reserved area 121 .

[0047] Each window number area 1 to 15 in the window base area contains 512 data blocks, but sometimes the last window number area 15 is not exactly 512. The additional reserved area can be divided into four major areas, namely the dynamic link area 101 , the window information area 102 , the dynamic link information area 103 and the start information area 104 . The blocks of the dynamic link area 101 can be used to configure each window; each window can be assigned two blocks in the window information area 102 to record its window information; the dynamic link information area 103 records the configuration status of the dynamic link area ; The initial information area 104 records...

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Abstract

A window substrate flash memory system and method for management and access, wherein the window substrate flash memory system has a window substrate region and an extra reservation region including a dynamic linking region, a window information region, a dynamic linking information region and a starting information region, the dynamic linking region includes a plurality of dynamic allocation blocks, the window information region corresponds to each window, and in a storage range, at least one piece of window information.

Description

technical field [0001] The present invention relates to an access method of a large-scale storage system, and in particular to an access method of a window-based flash memory storage system. Background technique [0002] A flash storage system generally consists of two parts: one is the flash memory and the other is the controller. The flash memory is where data is stored; the controller acts as a bridge between the flash memory and the host, taking on the task of communicating with the host and managing the flash memory. The controller is composed of several parts, including microprocessor, read-only memory, static random access memory (SRAM), flash memory interface and host interface, etc. The read-only memory mainly places the program codes required for the operation of the microprocessor; the SRAM mainly has two purposes: one is to store the relevant information of the window; the other is to serve as a data buffer between the flash memory and the host system. The cont...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/08G06F11/08G06F3/06G06F12/02
Inventor 林俊宏王智弘郭钧豪
Owner SOLID STATE SYST