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XIO2001的125M单端时钟怎么使用

Other Parts Discussed in Thread: XIO2001

XIO2001的125M单端时钟怎么使用

做了如下更改,

REFCLK125_SEL上拉到3.3V

REFCLK+接单端时钟

REFCLK- 0.1uF接地

时钟使用四脚有源时钟

PERST#设计内部重新做了,确保时钟有效,才解复位。 

改完之后,识别有问题,XIO2001经常识别不了,后端的PCI设备一直都没有识别到