A technique used to return acknowledgement information across a full-duplex (two-way simultaneous) data link without the use of special (acknowledgement) message.
经全双工(双向同时)数据链路，不用专门(确认)报文返回确认信息所用的技术。
2
UART allow to full-duplex communication at serial link circuit.
UART允许在串行链路上进行全双工的通信。
3
This kind of communication mode employs three-wire connection and fullduplex synchronous data transmission. It has the features of less link, fast speed, high reliability and etc.