Sending data from slave to master may use the opposite clockedge as master to slave.
数据从主机发给从机可能会使用与从机发给主机相反的时钟沿。
2
If a mark is to be transmitted, the output goes high after the rising edge of the clock.
如果一个标志是要传输时,输出变为高电平后,在时钟的上升沿。
3
When the body clock can synchronize the rhythms of its natural processes in response to light and other natural influences, it "gives us an edge in daily life", says Kay.