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【单选题】
与串口方式0相比,串口方式1发生的下列变化中( )是错误的。A.
通信时钟波特率是可变的,可由软件设置为不同速率
B.
数据帧由11位组成,包括1位起始位+8位数据位+1位校验位+1位停止位
C.
发送数据由TXD引脚输出,接收数据由RXD引脚输入
D.
方式1可实现异步串行通信,而方式0则只能实现串并转换
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