定时器TImerA的捕获功能产生定时周期需要先设置TAxCCR0的值以设置定时时间，同时P1.1/TA0.0的引脚描述是可以做为捕捉输入或者比较的输出，而比较输出是要先设置对应寄存器的比较值，捕获输入会将信号跳变时的计数值复制到对应的TAxCCRn寄存器中，对于P1.1/TA0.0引脚来说，其配置寄存器是TAxCCR0吗？如果是的话，那岂不是和定时器的定时周期的TAxCCR0相冲突？
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