Communication frames begin with a start bit and end with a stop bit.
串口通讯以起始位开始，以终止位结束。
It is used to set baud rate, parity check, number of data bits, stop bit.
它是用来设置波特率，奇偶校验，数据位数，停止位。
Class using the specified port name baud rate parity bit data bits and stop bit.
使用指定的端口名称、波特率、奇偶校验位、数据位和停止位初始化。
The break signal state occurs when a transmission is suspended and the line is placed in a break state (all low, no stop bit) until released.
中断信号状态发生于传输暂停时，此时线路会置于中断状态(全部都低，没有停止位元)直到其释放为止。
After the stop bit is received, the device will acknowledge the received byte by bringing the Data line low and generating one last clock pulse.
在收到停止位之后，设备将通过拉低数据线，生成最后一个时钟脉冲来应答收到的字节。
An RBSP is either empty or has the form of a string of data bits containing syntax elements followed by an RBSP stop bit and followed by zero or more subsequent bits equal to 0.
RBSP或者为空，或者包含具有数据比特串形式的语法元素，其后跟随RBSP截止位和零个或多个连续的0值比特。
An RBSP is either empty or has the form of a string of data bits containing syntax elements followed by an RBSP stop bit and followed by zero or more subsequent bits equal to 0.
RBSP或者为空，或者包含具有数据比特串形式的语法元素，其后跟随RBSP截止位和零个或多个连续的0值比特。
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