Method and device for data writing, and storage medium
A technology of data writing and storage area, applied in the input/output process of data processing, electrical digital data processing, input/output to the record carrier, etc. security and other issues
Active Publication Date: 2022-04-01
北京紫光青藤微系统有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In the prior art, when an exception occurs in the process of erasing or writing the corresponding storage area of the status register, the storage area corresponding to the one-time programmable non-volatile status bit of the status register will not be written after being abnormally erased, It is easy to cause the value of the corresponding storage area to be abnormal, making the reliability of the status register poor
For the one-time programmable non-volatile status bit, the attacker can destroy it by power-off during the erasing process, which reduces the security of stored data
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.
[0020] The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
This application relates to the technical field of non-volatile memory, and discloses a method for writing data. The method includes: updating the register value of the status register in response to a write status register instruction sent by the user; Write the one-time programmable non-volatile state bit to obtain the second judgment result; when the second judgment result is that the one-time programmable non-volatile state bit needs to be written, the preset second storage area A programming operation is performed, and the register value corresponding to the one-time programmable non-volatile status bit is written into the second storage area. In this way, the value in the storage area corresponding to the one-time programmable non-volatile status bit will not be abnormally erased in the case of abnormal power failure, thereby improving the reliability of the status register. The application also discloses a device and a storage medium for writing data.
Description
technical field [0001] The present application relates to the technical field of non-volatile memory, for example, to a method and device for writing data, and a storage medium. Background technique [0002] The status register is usually used to control the on or off of non-volatile memory-related functions. For some storage content related to system security, it is usually necessary to permanently protect it after writing data and cannot be erased or written by other users. The one-time programmable non-volatile status bits in the non-volatile memory status register and other non-one-time programmable non-volatile status bits are usually placed in the same storage area. When writing the status register, the non-volatile The corresponding storage area in the volatile memory is erased, and then the new value of the status register is written into the corresponding storage area. [0003] In the process of implementing the embodiments of the present disclosure, it is found th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/062G06F3/0629G06F3/0679
Inventor 刘家齐
Owner 北京紫光青藤微系统有限公司