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Integrated circuit with parts activated based on intrinsic features

A technology of integrated circuits and generators, which is applied in the direction of program/content distribution protection, internal/peripheral computer component protection, electrical components, etc. It can solve the problems of characterization processing damage, inability to program equipment configuration files, etc., and achieve reduction or overproduction , the effect of preventing overproduction

Active Publication Date: 2016-11-23
RENESAS ELECTRONICS EURO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the programming tool does not have the correct key, it cannot program the device profile
[0005] However, if the key is compromised, then the characterization process may be broken

Method used

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  • Integrated circuit with parts activated based on intrinsic features
  • Integrated circuit with parts activated based on intrinsic features
  • Integrated circuit with parts activated based on intrinsic features

Examples

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Embodiment Construction

[0044] refer to figure 1 , shows the integrated circuit 1 and the external registration device 2 . The integrated circuit 1 is a fixed logic device (as opposed to a programmable logic device). Thus, integrated circuit 1 includes logic circuits and other blocks whose functionality is fixed at the time of manufacture, but which may be individually selectively enabled or disabled and / or customized after manufacture.

[0045] The integrated circuit 1 comprises a unique code generator 3 for reproducibly generating a code 4 inherently unique to the integrated circuit 1 . Unique Code Generator 3 is based on Physically Unclonable Functions (PUF). The unique code 4 depends on the intrinsic physical properties of the components in the integrated circuit 1 . For example, the unique code generator 3 may generate the unique code 4 using the value at startup of the memory element. Code 4 is unique to integrated circuit 1 even with respect to other integrated circuits (not shown) of the ...

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PUM

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Abstract

A fixed logic integrated circuit is disclosed. The integrated circuit comprises a unique code generator (3) configured to generate a code (4) having a value which is intrinsically unique to the integrated circuit, an enrolment pattern generator (5) configured to generate an enrolment pattern (6) based on the unique code (4). The integrated circuit is configured to transmit the enrolment pattern (6) to an external enrolment device (2) and to receive enabling data (7) from the external enrolment device. Optionally, the integrated circuit may include memory (8) for storing remotely- generated enabling data (7). The integrated circuit comprises a configuration file generator (9) configured to generate configuration data (10) using the remotely- generated enabling data (7) and the unique code (4), and a feature activation module (11) configured to activate and / or disable features (13) of the integrated circuit and / or customise the integrated circuit in dependence upon the configuration data (10).

Description

technical field [0001] The present invention relates to fixed logic integrated circuits, such as microcontrollers or system-on-chips. Background technique [0002] Certain features of some integrated circuits can be enabled or disabled through a process known as "characterization." For example, characterization can be used to configure a variety of different functions and device attributes such as operating voltage, maximum clock operating frequency, memory capacity, and the availability of many peripheral modules such as communication ports, timers, and the like. [0003] Characterization provides a cheap and easy way to provide a range of differently characterized integrated circuits that exhibit a fixed set of features on a chip, starting from those with a complete set of features (referred to herein as "fully characterized integrated circuits") to other integrated circuits with fewer features (referred to herein as "variants"). [0004] Characterization involves progra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/10G06F21/73
CPCG06F21/10G06F21/73G09C1/00H04L9/0866G06F21/72H04L9/3278
Inventor 法布里斯·普拉尔
Owner RENESAS ELECTRONICS EURO
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