Re: phy to phy interface
Hi,
I know what you want, a transformerless application, right?
You mean IC175C can hear from BCM5482, but BCM can not hear IC175, is it? Normally, transformerless application is only applicable to the both PHY from same vendor, to be excatly, the same Partnumber. I guess there is some mismatch between the differential pairs of both side. Or you need a DC bias for either side.
By the way, you also need consider the Auotnego when debugging. If both side support Fiber mode, maybe you can try this mode.