A kind of otp memory data protection method, system and otp controller
A data protection and storage technology, applied in the field of data security, can solve the problem of low programming data security, and achieve the effect of improving stability, security and confidentiality
Active Publication Date: 2019-10-08
HUNAN GOKE MICROELECTRONICS
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[0005] A kind of OTP memory data protection method, system and OTP controller are provided in the embodiment of the present invention, to solve the problem that the OTP memory internal programming data security in the existing application is low, set access authority simultaneously, improve the internal core data of OTP memory confidentiality
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[0042] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, 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 making creative efforts shall fall within the protection scope of the present invention.
[0043] see figure 2 , which is a schematic flow diagram of an OTP memory data protection method provided by an embodiment of the present invention, such as figure 2 shown, including:
[0044] S101. Divide the OTP memory into a data security protection area and a data security configuration area, and the data security protection area...
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The embodiment of the invention discloses an OTP memory data protection method and system and an OTP controller. The method includes the steps that an OTP memory is divided into a data security protection region and a data security configuration region; a data interface of the OTP memory is divided into an external serial port and an external parallel port, the external serial port and the internal overall region of the OTP memory are provided with a communication channel, and the external parallel port and the data security configuration region are provided with a communication channel; access channel selective control is set, the external serial port or the external parallel port establishes communication connection with the OTP memory within the same moment, and through access authority programming configuration, access to the data security protection region and the data security configuration region is controlled. The OTP memory is subjected to region division, access authority is set, channel selection is set, the external serial port and the external parallel port are independent of operation of the OTP memory, and the security and confidentiality of data are improved.
Description
technical field [0001] The invention relates to the technical field of data security, in particular to an OTP memory data protection method, system and OTP controller. Background technique [0002] Various types of memories are required in integrated circuit design, and OTP (One Time Programmable, one-time programmable) memories are commonly used. Due to the non-volatility and high reliability of OTP memory storage data, many commonly used advanced chips are integrated with OTP memory modules. When the chip leaves the factory, the content stored in the OTP memory is all a preset value, and the user can write data into some of the cells as needed to achieve the purpose of "programming". [0003] OTP memory such as figure 1 Shown includes data and control interface, OTP storage area part and encapsulation shell, and OTP memory part is encapsulated in the part that stores programming data for OTP memory in said encapsulation shell, and said data and control interface are arra...
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IPC IPC(8): G06F21/79G06F21/73G06F21/60
Inventor 唐伟华力曹祥荣欧阳邦见朱健余方桃黄新军
Owner HUNAN GOKE MICROELECTRONICS