smeng12New Contributor5 years ago请问，FPGA的差分ClK引脚，p管脚用作单端时钟输入或输出了，n管脚可否用作普通I/O，还是必须空着？如果不用空着，是否需要接地？谢谢
1 ReplyReplies sorted by Most LikedYuanLi_S_IntelRegular Contributor5 years ago你好，n 是可用作普通I/O的。如果没用，可以空着，因为里面会pull up。
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