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IO口的DVDD为1.8V，那这个IO口的最大输入电压是多少？数据手册中写的输入电压范围是DVDD + 30% up to 30% of Signal Period。我不是很理解这个意思，麻烦告知一下，谢谢。
可以看一下下面两个帖子理解一下https://e2e.ti.com/support/processors-group/processors/f/processors-forum/557880/regarding-omap-l138-and-c6748-overshoot-and-undershoot-valueshttps://e2e.ti.com/support/processors-group/processors/f/processors-forum/343111/am3352-mii-signal-overshoot/1199735#1199735
IO电平范围是IO电压的正负5%，
qianyu ye 说：输入电压范围是DVDD + 30% up to 30% of Signal Period
这是指的over shoot过冲信号范围。
