Method and device for reading data by NOR flash memory

A technology of memory reading and memory, which is applied in the storage field and can solve problems such as unsupported complex operations

Active Publication Date: 2020-10-30
GIGADEVICE SEMICON (BEIJING) INC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] A method and device for reading data in a NOR flash memory provided by the present inventio...

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  • Method and device for reading data by NOR flash memory
  • Method and device for reading data by NOR flash memory
  • Method and device for reading data by NOR flash memory

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0050] At present, during the use of NOR flash memory, NOR flash memory needs to be able to realize functions including but not limited to pure programming, reading, erasing and other operations. For example, when users program NOR flash memory, it may be necessary due to various factors. Perform other operations urgently, but due to the characteristics of the NOR flash memory itself, the NOR flash memory can only perform one operation, so it is necessa...

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Abstract

The invention provides a method and a device for reading data of an NOR flash memory. The method comprises the following steps of: ; receiving pause programming instructions, temporary shutdown of programming operations, and executing an erase operation according to the received erase operation instruction. Receiving pause erase instructions, temporary ceasing erase operations, when the programming operation and the erasing operation are stopped temporarily at the same time, a read operation instruction is received, and if the address of the storage unit needing to be subjected to the read operation is not in the address range of the storage unit corresponding to the programming operation plus the address range of the storage unit corresponding to the erasing operation, the read operationis executed on the storage unit needing to be subjected to the read operation. According to the invention, the NOR flash memory can temporarily stop the programming operation in the programming operation process to carry out the erasing operation; the NOR flash memory has the advantages that the NOR flash memory can be used for erasing the NOR flash memory, the erasing operation is temporarily stopped in the erasing operation process to carry out the reading operation, the functions of the NOR flash memory are enriched, the use flexibility of the NOR flash memory is improved, the technical development and popularization of the NOR flash memory are facilitated, and the use feeling of a user is improved.

Description

technical field [0001] The invention relates to the field of storage, in particular to a method and device for reading data from a NOR flash memory. Background technique [0002] At present, the application fields of NOR flash memory are more and more extensive. The characteristic of NOR flash memory is that it is executed in the chip, so that the application program can run directly in the NOR flash memory, and there is no need to read the code into the system RAM. The transmission of NOR flash memory The efficiency is high, and it is very cost-effective in the small capacity of 1-4MB. [0003] At present, for NOR flash memory, some simple applications such as programming, erasing, and reading can no longer meet the needs of the development of NOR flash memory technology. It is necessary to provide more and more complex applications for NOR flash memory so that NOR flash memory can be used to a wider range. [0004] At present, the NOR flash memory supports temporarily st...

Claims

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Application Information

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IPC IPC(8): G11C16/26G11C16/14G11C16/10G06F3/06
CPCG11C16/26G11C16/10G11C16/14G06F3/0607G06F3/0652G06F3/0679
Inventor 刘言言许梦付永庆
Owner GIGADEVICE SEMICON (BEIJING) INC
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