您好,
设计C6748与DP83822接口,框图参考DP83822数据手册,MAC端采用C6748,PHY采用83822,接口采用RMII Master Signaling形式,其中50MHz-REFER Clock通过DP83822的RX_D3(PIN1脚)输出给C6748,上述设计有什么问题?
谢谢,
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您好,
设计C6748与DP83822接口,框图参考DP83822数据手册,MAC端采用C6748,PHY采用83822,接口采用RMII Master Signaling形式,其中50MHz-REFER Clock通过DP83822的RX_D3(PIN1脚)输出给C6748,上述设计有什么问题?
谢谢,
The RMII reference clock (RMII_MHZ_50_CLK) must have a jitter tolerance of 50 ppm or less这个是C6748对50MHz时钟的要求,建议去接口论坛问问DP83822能否提供这样时钟。