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A kind of nand flash component and its operation control method and device

A technology of components and controllers, applied in the field of memory, can solve the problem of heavy burden on the main controller, and achieve the effect of solving the heavy burden

Active Publication Date: 2021-08-10
GIGADEVICE SEMICON (BEIJING) INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a Nand flash element and its operation control method and device to solve the problem that the Nand flash element needs to rely on the main controller to manage it and cause the main controller to have a heavy burden

Method used

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  • A kind of nand flash component and its operation control method and device
  • A kind of nand flash component and its operation control method and device
  • A kind of nand flash component and its operation control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] figure 1 A structural block diagram of a Nand flash element provided by an embodiment of the present invention.

[0047] refer to figure 1 As shown, the Nand flash component provided in this embodiment includes a package body 10 , and a Nand flash core 11 and an internal controller 12 are arranged in the package body. The Nand flash core includes multiple Blocks, each Block is composed of multiple Pages, and each Page is composed of multiple Cell lines, and the core also includes a storage area for storing ECC check codes.

[0048] The above-mentioned internal controller is used to control the Nand flash core, and the internal controller specifically includes a basic configuration module 121 , a basic loading module 122 , a low-level format module 123 and a product firmware module 124 .

[0049] Among them, the above-mentioned basic configuration module is used to store the basic information and configuration information of the Nand flash core, such as page size, block ...

Embodiment 2

[0057] figure 2 It is a flow chart of steps for an operation control method of a Nand flash element provided by an embodiment of the present invention.

[0058] The operation control method provided in this embodiment is applied to the internal controller of the Nand flash element provided in Embodiment 1, and is used to implement corresponding operation control on the Nand flash element, that is, the controller operates normally.

[0059] refer to figure 2 As shown, the operation control method of the Nand flash element provided in this embodiment specifically includes the following steps:

[0060] S101: Receive basic information and control information sent by the host computer.

[0061] When the Nand flash component is powered on, the basic loading module that controls the internal controller receives the basic information and control information sent by the host computer.

[0062] S102: Determine whether the working mode is a normal working mode.

[0063] Specificall...

Embodiment 3

[0074] image 3 A structural block diagram of an operation control device for a Nand flash element provided by an embodiment of the present invention.

[0075] The operation control device provided in this embodiment is applied to the internal controller of the Nand flash element provided in the previous embodiment, and is used to implement corresponding operation control on the Nand flash element, that is, the controller operates normally.

[0076] refer to figure 2 As shown, the operation control device of the Nand flash element provided in this embodiment specifically includes a first control module 20, a mode judgment module 30, a second control module 40, a third control module 50, a fourth control module 60 and a fifth control module 70.

[0077] The first control module is used to control the basic loading module of the internal control to receive the basic information and control information sent by the upper computer.

[0078] When the Nand flash component is powe...

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Abstract

The embodiment of the present invention provides a Nand flash component and its operation control method and device. The component includes a package body, and the package body is packaged with a Nand flash core and an internal controller. The internal controller includes a basic configuration module, a basic loading module, Low-level modules and product firmware modules. Among them, the basic configuration module is used to store the basic information and configuration information of the Nand flash core; the basic loading module is used to receive the data information and control information sent by the host computer and load the product firmware to RAM; The Nand flash core performs low-level formatting operations; the product firmware module is used to process user commands and perform ECC check management, bad block management, address mapping management, and wear leveling management on the Nand flash core according to data information and control information. The Nand flash element of this embodiment can realize the management of the entire element through the internal controller, no longer relying on the main controller, so the problem of heavy burden on the main controller can be solved.

Description

technical field [0001] The invention relates to the technical field of memory, in particular to a Nand flash element and its operation control method and device. Background technique [0002] Nand flash is a kind of flash memory, which uses nonlinear macro-cell mode inside, which provides a cheap and effective solution for the realization of solid-state large-capacity memory. Nand flash has the advantages of large capacity and fast rewriting speed. It is suitable for the storage of large amounts of data, so it has been more and more widely used in the industry. For example, embedded products include digital cameras, MP3 walkman memory cards, small and exquisite U disk, etc. [0003] The data of Nand flash is stored in the memory cell in the form of bits. Generally speaking, only one bit can be stored in each cell; these cells are connected into bit lines in units of 8 or 16 to form a so-called byte ( x8) / word(x16), this is the bit width of NAND Device. These bit lines for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F11/10
CPCG06F3/0604G06F3/0629G06F3/0679G06F11/1044
Inventor 庄开锋
Owner GIGADEVICE SEMICON (BEIJING) INC
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