对反熔丝结构FPGA的分析与研究

发布时间：2018-01-14 14:21

本文关键词：对反熔丝结构FPGA的分析与研究　出处：《辽宁大学》2015年硕士论文　论文类型：学位论文

更多相关文章： 反熔丝 FPGA 电荷泵 I/O接口 JTAG

【摘要】：FPGA(Field Programmable Gate Array)即现场可编程门阵列,它的主要构成因素包括很多的可配置逻辑单元、复杂交错的可编程的互联资源、还有就是一些可编程的I/O接口电路,它可以通过用户的自主编程实现各种功能。随着FPGA设计技术和工艺技术的提高,反熔丝FPFA因其非易失性、功耗低、集成度高、性能稳定、抗总剂量等优点得到了世界电子行业的广泛关注和应用,包括应用到高可靠、高保密性的军用和航空航天领域。本文分析了国内国外的反熔丝FPGA的成果和发展趋势,深入的探讨了反熔丝的的基本结构及工作方式,探讨了不同类型的反熔丝工作原理。反熔丝分为ONO型和MTM型,着重的分析了ONO反熔丝的结构,熔断原理模型,分析了它们各自的编程过程,编程电压,编程后的欧姆特性和版图布局,此外,还讨论了反熔丝阵列的编程方法和过程。同时简述了FPGA的整体结构和电路组成,包括可编程逻辑模块CLB,I/O模块,布线资源,时钟网络和JTAG。同时为了更好的理解反熔丝的工作,以及更加直观的表述反熔丝FPGA的工作原理,还进行了垂直分段的反熔丝编程下载的验证。内部主要模块的仿真:包括可编程逻辑模块的功能仿真,即C_Moudle、D_Moudle、S_Moudle功能仿真以及电路的延时仿真;电荷泵的仿真,包括振荡器变频电路、辅助上电电路和稳压电路的仿真,设计出了一个高效率低功耗的电荷泵;对I/O的仿真,完成了I/O在仿真工艺角TT、FF、SS和三温状态下输入输出的功能验证,并对照了Actel SX-A Family FPGA公司的数据手册,基本达到要求,同时还做了I/O反熔丝点控制功能的验证,包含可编程的斜率控制电路、上拉下拉电阻的控制,钳位电压功能的验证;JTAG的仿真,简要的阐述了JTAG的工作方法,着重讨论了JTAG的核心控制功能TAP状态机的验证。最后完成了全电路模块的版图设计,本版图采用的是TSMC(台湾积体电路制造公司,简称台积电)0.18um工艺,内核电压VCCA为1.8V,I/O电压VCCI是3.3V。此文章为以后的反熔丝FPGA的分析研究提供了参考。
[Abstract]:FPGA(Field Programmable Gate array, a field programmable gate array, consists of many configurable logic units. Complex interlaced programmable interconnect resources, and some programmable I / O interface circuits, it can achieve a variety of functions through the independent programming of users. With the improvement of FPGA design technology and process technology. Anti-fuse FPFA has been widely concerned and applied in the electronic industry in the world for its advantages of non-volatile, low power consumption, high integration, stable performance, total dose resistance and so on, including its application to high reliability. In this paper, the achievements and development trend of anti-fuse FPGA at home and abroad are analyzed, and the basic structure and working mode of anti-fuse are discussed. The working principle of different types of anti-fuse wire is discussed. The anti-fuse wire is divided into ONO type and MTM type. The structure of ONO anti-fuse wire, the model of fuse principle and their programming process are analyzed emphatically. The programming voltage, ohmic characteristics and layout after programming are also discussed. In addition, the programming method and process of anti-fuse array are discussed, and the overall structure and circuit composition of FPGA are briefly described. Includes the programmable logic module CLBU I / O module, wiring resources, clock network and JTAG. meanwhile, for a better understanding of the anti-fuse work. And more intuitively describes the working principle of the anti-fuse FPGA, also carried out the vertical section of anti-fuse programming download verification. Internal simulation of the main modules, including the functional simulation of programmable logic module. In other words, the function simulation and the circuit delay emulation of the C _ S _ Moudlee _ D _ D _ D _ D _ D _ S _ S _ S _ Moudle; A charge pump with high efficiency and low power consumption is designed by simulation of charge pump, including oscillator frequency conversion circuit, auxiliary power up circuit and voltage stabilizer circuit. The simulation of I / O has completed the functional verification of I / O in the simulation process angle TTFFFFSS and the three-temperature state of input and output. Compared with the data manual of Actel SX-A Family FPGA, it basically meets the requirements. At the same time, the I / O anti-fuse point control function is verified. Includes programmable slope control circuit, up pull down resistance control, clamp voltage function verification; JTAG simulation, briefly describes the working methods of JTAG, focuses on the core control function of JTAG TAP state machine verification. Finally, the layout design of the whole circuit module is completed. TSMC (Taiwan Integrated Circuit Manufacturing Co., Ltd., abbreviated as TSMC 0.18um process) is used in this paper. The core voltage VCCA is 1.8V. The I / O voltage VCCI is 3.3 V. this paper provides a reference for the analysis and study of anti-fuse FPGA in the future.
【学位授予单位】：辽宁大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN791

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