关于P1口中断有如下几个问题：
1、引脚只要有高低电平跳变就会产生中断，无论中断是否使能；
2、如果不定时的有多个引脚都有从外部输入的时钟信号，那么此时每个引脚的中断是否有丢失的可能；
以上，请帮忙解答，谢谢！
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