A Programmable Logic Circuit Including Customizable Fuse Configuration Blocks

Abstract

The invention discloses a programmable logic circuit containing a customized fuse configuration module. A configuration position of the circuit is composed of a static random access memory (SRAM) configuration unit and a customizable fuse configuration unit which can be switched to fuse position control. When a customized circuit is realized, according to a certain process, a limited metal mask layer board is changed to solidify part of circuit functions, and at the same time a control position of a key circuit is switched to fuse position control, so that fuse configuration can be realized by writing by a user, and finally functions of a user circuit are realized while safety of key information of the user circuit is ensured. On the basis of advantages including short development period, low cost, strong flexibility, and large circuit scale of a general field programmable gate array, the programmable logic circuit of the invention also has the advantages that the capability of resisting a single particle is substantially improved, and the safety of the user circuit is ensured.

Description

technical field [0001] The invention relates to the technical field of programmable logic circuits, in particular to a programmable logic circuit including a customizable fuse configuration module. Background technique [0002] With the development of integrated circuit technology, the emergence of Field Programmable Gate Array (FPGA) provides users with the ability to program or reconfigure the system, and provides new possibilities for many complex signal processing and data processing circuits and systems. Design ideas and verification methods, while significantly shortening the design cycle, reducing design costs, reducing design risks, making the new generation of large-scale integrated circuits more flexible and adaptable, so they can be used in civil and aerospace electronic systems widely used. [0003] However, as the degree of integration increases, the influence of the space radiation environment on FPGA becomes more and more serious. The electromagnetic radiati...

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Problems solved by technology

However, due to the complete exposure of the physical structure in this method, there is a danger of over-construction in the production process or dialysis design through reverse extraction

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