The whole design flow of this subject reflects my attempt in the field of VLSI SOC design methodology, especially in the innovation of the design process organization.
In this paper, low power memory design technologies were studied at first and a 64kb (4k× 16bit) ROM was carried out by custom design method and fabricated in 0.18μm CMOS process. The whole design flow including logic, layout, tape out and chip test design was completed.
In this thesis, first, the architecture characteristic of FPGA is analyzed, and FPGA design techniques are discussed, a FPGA design flow for optimizing timing is advanced.
：A design method of a kind of practical photoelectric－isolated RS－232 voltage conversion interface is introduced ．Making use of the method ，a connection circuit is designed， which does not need RS－232 voltage converter and fulfills voltage conversion by photoelectric coupler directly． At the same time， hardware connection circuit，complete communication protocols and software design of communication between MCS－51 single－chip microcomputer and PC computer are given．
The MPEG-4video-compressing standard and PNX1300series multimedia processor are introduced,and the design of MPEG-4video-compressing PCI card based on PNX1300processor is presented. The system structure and the analysis of flow chart of coder are given also in this paper.
Analyzing the energy model of digital CMOS circuit, we describe the low power design methods and their efficiency in the different level and the low power design methodology with the synthesis technique. Finally we did many research on the low power architecture of the NCS2000 microprocessor which is a 16-bit CISC processor designed by author in Aviation Microelectronic Center with our own patent. Many design methods are provided firstly.
The patterns of the limiting streamlines on the body surface obtained with the aid of special paints indicate that the calculated design flow scheme is realized in these regimes.
The design trajectory starts with document modeling in Hierarchical Timed Stream Petri Nets, goes on with model checking against design errors, and continues with automatic translation of HTSPN models into a Java application.
In order to compute Mext for the RF gap, one needs to numerically solve the equations of motion for the design trajectory inside the gap.
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Two tools are provided that together offer a design trajectory that spans system-level design down to mask-level design on silicon.
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The second aspect is that, since embedded systems will be quite complex, the design trajectory will involve several levels of synthesis.
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High speed PCB has become the mainstream in digital system design.The paper presents an overview of the tendency and the flowchart of PCB design,and discusses the key factors of high speed signal transmission.Finally,the method of rule driven design and the technology of high speed PCB design are discussed concretely ′ and modern EDA technology is introduced as well.
The conception、feature and de sign process of In System Programmability are introduced, and a actual applicat ion in airo telemetering telecontrol is described in detail.
This paper describes two kinds of hardware description language—VHDL and Verilog HDLwhich recently are used widely in the world.It also provides the methods of designing a logic system with the hardware description language and compares them with traditional methods.
设计流程
design flow 
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