接口的波特率为31.25 k波特，其中包括1个起始位，8个数据位以及1个停止位，每个串行比特周期为320微妙。
The baud rate for the interface is 31.25 Kbaud with 1 start bit, 8 data bits, and 1 stop bit, giving a period of 320 microseconds per serialized byte.
在正确选择编码方式后，波特率设置为大于数字信号传输速率，可保证语音通信质量。
When the right coding mode is chosen, baud rate should be set more than digital signals transmission velocity, and the speech communication quality can be guaranteed.
首先以MCS - 51为例，分析了波特率的误差源和允许的波特率误差，然后介绍了一种自动调整波特率的方法。
Firstly, the error source of baud rate and the allowable baud rate error are analyzed with the example of MCS-51. Then a method of baud rate autoregulation is presented.
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