UL865 DVI functioning

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  1. The modem has following DVI parameters:
    #DVI: 1,2,1
    #DVIEXT: 1,0,0,1,0
    #DVICLK: 1
    It has 256kGz meander on its DVI_CLK and 8kGz meander on DVI_WA0 pin. If I put, say, a 400 Gz digital sinus to DVI_RX, I see a signal coming out of DVI_TX pin. Having captured this signal I saw the same 400 Gz sinus wave but with 20dB attenuation. Is this an intended modem behavior??