本论文使用Verilog HDL 语言描述硬件功能，利用QuartusII 5.0在 FPGA 芯片上的综合描述,采用模块化设计方法设计UART（通用异步收发器）的各个模块。-The paper using Verilog HDL language to describe hardware features, the use of the FPGA chip QuartusII 5.0 comprehensive descr iption of the modular design approach to the design of each module of UART (Universal Asynchronous Receiver Transmitter).