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A method and device for reading data pages by spi-nand

A technology for reading data and data pages, applied in the storage field, it can solve the problem of unreadable data, and achieve the effect of improving performance

Active Publication Date: 2021-01-26
GIGADEVICE SEMICON (BEIJING) INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a method and device for reading data pages by SPI-Nand, which can solve the problem that data cannot be read due to ECC errors, and improve the performance of SPI-Nand

Method used

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  • A method and device for reading data pages by spi-nand
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  • A method and device for reading data pages by spi-nand

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0038] It should be noted that the terms "first" and "second" in the specification, claims and drawings of the present invention are used to distinguish different objects, rather than to limit a specific order. The "and / or" mentioned in the embodiments of the present invention means any and all combinations including one or more related listed items.

[0039] In order to solve the problem that the back-end ECC error occurs when reading the data stored in the data page, resulting in the problem that the data cannot...

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Abstract

The invention discloses a method and a device for reading data pages by SPI-Nand. The method includes: when an error check and ECC error occurs when reading the first data page, judging whether the first data page is located at the first step length, wherein the last updated data is stored in the first data page, the first step The length is the first step inside the block, and the length of the first step is the total length of the data pages occupied by the first step; if the first data page is not located in the first step, the second step is obtained The address of the home page of the second step, wherein the second step is the previous step of the step where the first data page is located, and the home page address of the second step is the address of the first data page of the second step. Through this method, the problem that data cannot be read due to ECC errors can be solved, and the performance of SPI‑Nand is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of storage technologies, and in particular to a method and device for reading data pages by SPI-Nand. Background technique [0002] Serial Peripheral Interface (SPI) Nand is a kind of Flash memory, which belongs to non-volatile memory device (Non-volatile Memory Device), has the advantages of large capacity, fast rewriting speed, etc. storage. [0003] There are usually a variety of data stored in SPI-Nand, such as SPI-Nand configuration information, the mapping relationship between SPI-Nand logical addresses and physical addresses, and SPI-Nand firmware (Firmware), etc. These data usually need to be updated frequently, so To store updated data multiple times. When SPI-Nand searches for data, it usually finds the data page stored in the last update and reads the data stored in the data page. However, when reading the data stored in the data page, a back-end error checking and correction (Error...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/07G06F11/10
CPCG06F11/0727G06F11/0793G06F11/1048
Inventor 庄开锋
Owner GIGADEVICE SEMICON (BEIJING) INC
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