5.1 DDR3L
(Ask a Question)The PolarFire Evaluation Kit board has a current sense resistor (R118) for 1.5V power rail. Measure the voltage across the R118 using test points TP134 and TP135 and use the following equations to get the DDR3L power. This measurement includes PolarFire DDR3L IO power consumption and actual Micron DDR3L memory power consumption.
Current (mA) =
Power (mW) = Current × Voltage
While running the demo, the measured voltage across R118 is 6.3 mV and resistor value is 0.01Ω.
Current (mA) = 6.3 ÷ 0.01 = 630 mA Power = 630 × 1.5 = 945 MW