MityDSP-Pro RGMII voltage
Added by Alexander Timokhin almost 9 years ago
RGMII interface from TMS320C6455 DSP MAC can work with either 1.5V or 1.8V power suply.
What RGMII voltage is used on MityDSP-Pro boards (on Hirose expansion connector)?
RE: MityDSP-Pro RGMII voltage - Added by Michael Williamson almost 9 years ago
DVDD15 is connected to 1.5V.
VREFHSTL (for the EMAC RGMII) is set at to 1.5V / 2.
This is a provision to change the 1.5 voltage to 1.8 V, but it would require removal of 1 resistor (0 ohm jumper) and installation of a second on the board. This mode of operation has not been validated here, however, and you would either need to do the work at your factory or make arrangements for an alternate part number with our production team.