The Virtex-II Pro "DC and Switching Characteristics" data sheet states values for power consumption given several different data rates. Will different settings for TX_PREEMPHASIS (pre-emphasis control) and TX_DIFF_CTRL (differential swing control) affect these specifications? If so, how?
Data sheets for all Xilinx devices are available at:
The power specifications assume the use of the default settings: 10% pre-emphasis and 500 mV single-ended swing. With each increase of pre-emphasis (the settings are 10%, 20%, 25%, or 33%), the current draw on VTTX will increase by a maximum of 2 mA. With each 100 mV increase in single-ended swing (the settings are 400 mV, 500 mV, 600 mV, 700 mV, or 800 mV), the current draw on VTTX will increase by a maximum of 3 mA.
The above information does not depend on data rate.