Some of the blocks are written by mcs - 51 asm language and vhdl hardware description language 系统中一些模块采用mcs一51汇编语言和vhdl硬件描述语言编写，因而涉及到单片机、 eda等新技术。
Second1y , the method of waveform representation inc1uding delay and hazards by hdl is ana1yzed and expounded 然后，对硬件描述语言表达波形的方法如延迟和竞争冒险方面进行了分析和阐述。
Vhdl is considered as a core of digital system design and a key technique of imptement digital systems design 硬件描述语言（ vhdl ）是数字系统高层设计的核心，是实现数字系统设计新方法的关键技术之一。
It is an important character that using hdl describes function and behavior of logic device or system hardware 使用硬件设计语言来描述逻辑器件及系统硬件的功能和行为是硬件描述语言编程设计方法的一个重要特征。
This type of design is a high - level description of the system that is then translated into a digital circuit by eda soft 采用硬件描述语言可以在行为级上对电路进行设计，然后再由eda软件将其转换为硬件电路实现。
Meanwhile , it also introduces the design platform - ise 4 of xilinx company and the vhdl - a sort of hardware design describe language 同时还介绍了用来实现这些模块的硬件描述语言? vhdl和xilinx公司的ise4开发平台。
At last , the architecture is described with verilog hdl . some simulation for the architecture shows the architecture is accurate and feasible 最后用veriloghdl硬件描述语言对该结构进行简要的描述、仿真,验证了该结构的可行性。
Hdl is good forma1 ization " hierarchy and standardization descr ipt ion measure of designing and keeping in the archives in digital system 硬件描述语言为数字系统的设计和存档提供了一种具备形式化、层次化和规范化的良好描述手段。
Finally , it was systemically realized by fpga . the design was described with veriloghdl , simulated and synthesized with ise6 . 3i 该设计采用的是硬件描述语言veriloghdl来完成代码设计,并使用xilinx公司eda软件ise6 . 3i完成仿真和综合。
The most advanced asic design technique is used in this research and it is described by vhdl , which belongs to hard ware description language 在该课题的研究中，采用了目前asic设计中最先进的高层次设计方法，使用硬件描述语言vhdl对其进行描述。
