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DP83640: PPS无输出

Part Number: DP83640

参考《National Semiconductor Ethernet PHYTER Software Development Guide》文档,首先通过写DP83640 0x13寄存器的值为0x5 选中page5,然后再写0x14寄存器的值为0xC201,配置完成后,使用示波器测量GPIO2管脚无PPS输出。

请教下各位老师,除上述寄存器配置外,还需要配置其他寄存器吗?

PS:目前通过通过写DP83640 0x1C寄存器的值为0x0,CLK_OUT管脚是有25MHz频率输出的。