在自动配置协议广泛流传开来之前，人们有时会手工配置计算机系统，以改用全双工操作，但另一台计算机依然会使用半双工操作。
Before the autonegotiation protocol was widely used, people would sometimes manually configure one system to use full duplex, but the other would use half duplex.
本文介绍了利用VHDL语言设计出全双工异步接收发送器电路的方法，并通过计算机仿真和实验证明了设计的正确性。
In this paper, the design of full duplex UART base on VHDL is thoroughly discussed. And the exactitude of this design has been proved by means of computer simulation and experiment.
本文介绍了利用VHDL语言设计出全双工异步接收发送器电路的方法，并通过计算机仿真和实验证明了设计的正确性。
In this paper, the design of full duplex UART base on VHDL is thoroughly discussed. And the exactitude of this design has been proved by means of computer simulation and experiment.
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