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IP core of system on chip capable of realizing data self-protection

A system-on-chip and self-protection technology, applied in the field of IP cores, can solve the problems of preventing imitation, etc., and achieve the effect of simple structure, high degree of confidentiality, and small amount of logic

Active Publication Date: 2007-10-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Cannot achieve the purpose of preventing imitation

Method used

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  • IP core of system on chip capable of realizing data self-protection
  • IP core of system on chip capable of realizing data self-protection
  • IP core of system on chip capable of realizing data self-protection

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] The present invention is about the data protection mechanism inside the IP core, including the protection of memory and registers, so the access mechanism of memory and registers is mainly described.

[0027] As shown in FIG. 3 , the implementation mechanism of the present invention is carried out on the basis of the structure shown in FIG. 2 . The IP core includes an IP core storage unit (memory 4 and / or register) for storing data to be protected, and the IP core storage unit is connected to the processor core of the SoC system through a relevant bus (not shown in FIG. 3 ). A logical control unit (logic comparison module 7 and hidden register 8) for generating logical control signals is also provided in the IP core, the logical control unit is connected and controlled by the processor core, and controls the IP core by the logical control signal genera...

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PUM

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Abstract

The invention discloses an IP nucleus of chip system, capable of implementing the self-protection of data, relates to a data self-protection device in the nucleus, for solving the problem that the data protection in the existing IP nucleus is poor. The invention includes a storage unit in the IP nucleus for storing the data to be protected, wherein the storage unit in the IP nucleus is connected with the processor in the chip system through the bus. A logic controlling unit for generating the logic control signal, which is provided in the IP nucleus, is connected with the processor and contolled by the processor, and the generated logic control signal controls the corresponding logic control bits of storage unit in the IP nucleus in order that the storage unit in the IP nucleus is in the locked or delocked state. The invention can be used in the protection of data in the IP nucleus or the like. The invention has the advantages of strong data security, simple structure and lower cost.

Description

technical field [0001] The invention relates to an IP core of a system on chip (SoC, System on Chip), in particular to an IP (Intellectual Property, intellectual property) core of a system on chip capable of realizing data self-protection. Background technique [0002] Embedded systems are becoming a hot spot in the development of today's computer industry. With the rapid development of ultra-large-scale integrated circuits, the semiconductor industry has entered the deep submicron era. The feature size of devices is getting smaller and smaller, and the chip scale is getting bigger and bigger. Millions to hundreds of millions of transistors can be integrated on a single chip. Such a dense integration can integrate the functions previously realized by several chips such as the CPU and several I / O interfaces on a small chip, and form a powerful and complete system from a single integrated circuit, which is what is usually called Said system on a chip SoC. Due to its complete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00G06F21/60G06F21/78
Inventor 马卫国
Owner DATANG MOBILE COMM EQUIP CO LTD
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