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【单选题】
使用printf、putchar、puts函数输出数据,必须先对串行口初始化,初始化内容之一是写SCON设置串行口工作方式。设串行通信传输格式为8个数据位、1个停止位,1个校验位,则设置SCON的数值为下面的()
A.
0xe0;
B.
0xc0;
C.
0xb0;
D.
0xa0。
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A.
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