I would like to use the DP83869HM in the 1000Base-X OUTPUT in RGMII to 1000BASE-X Mode. According to the datasheet the Output Differential Voltage (Configuration bits for 0.6V - 1.27V; Default at 1.1V) for 1000BASE-X/SGMII INPUT is between 1060 mV and 1140 mV.
My optical transceiver requires:
- Differential data input swing: 180 mV (min) - 700 mV (max)
- Differential data output swing: 370 mV (min) - 850 mV (max)
Is there a way to adjust the Output Differential Voltage of the DP83869HM? And if yes, how? I didn't find any registers fot it in the datasheet.