外部控制器 meaning in Chinese

pcu

The hardware designing include the interface with engine controller , such as d / a conversion . we chose the ad75089 which was produced by ad corp . this is a parallel port digital to analog conversion , and i give the presentation about its structure and connection scheme . in order to resolve the contradiction between faster computation and slower display , a buffer storage also needed
第二部分详细陈述了高速数据传输卡的软、硬件设计过程，硬件设计包括dsp与pci总线的接口、 dsp与外部控制器的接口、以及电路卡上的扩展数据缓冲区的设计，并使用专门的工具软件protel绘出全部硬件电路的设计原理图。