def METHOD_NAME(self, rvi):
    iostandard, slew, drive = rvi.split("_")
    if iostandard[-2:] == "12":
        voltage = 1.2
    elif iostandard[-2:] == "15":
        voltage = 1.5
    elif iostandard[-2:] == "18":
        voltage = 1.8
    elif iostandard[-2:] == "25":
        voltage = 2.5
    else:
        voltage = 3.3
    resistance = voltage / (int(drive) * 0.001)
    return "%.1f,%s,%.3f" % (voltage, drive, resistance)