FPGA是一种常用的可编程器件，适于实现规模较大的设计，但利用FPGA设计时间敏感（TimingSensitive）的工作频率较高的数字电路时不能完全按一般的设计方法。本文介绍了一个DMA控制器的设计在FPGA中的实现。 FPGAs are a common type of programmable device that is suitable for larger designs but can not be designed exactly as a FPGA by designing time sensitive (Timing Sensitive) digital circuits that operate at higher frequencies. This article describes the design of a DMA controller in the FPGA implementation.