It has characteristics of simple circuit, needing few interface lines, high reliability and can perform duplex communication at high speed.
其特点是电路简单、占用口线少、速率高、可靠，可实现全双工通信。
The Serial peripheral Interface is a sort of technology with high speed and efficiency, which makes the SPI device convenient in data communication.
SPI接口技术是一种高速，高效的串行接口技术，因而SPI设备在数据通信中应用十分方便。
This paper is based on developing the high-speed intelligent card, main control card of MSCIS interface system and device driver of the communication card.
论文是在研制MSCIS接口系统的高速智能通信卡、主控制卡和开发通信卡设备驱动程序的基础上完成的。
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