I'm developing a simple power meter using the ATM90E32 from Microchip. For now, I can read all values: frequency, power factor, voltages, apparent power, etc.
Now the issue is with the energy, I need to read and maybe store the energy.
I can't understand exactly how the energy registers work. Even the datasheet keeps me confused. Has someone already worked with the ATM90E32?
Edit 2: The DataSheet refers to the Energy accumulation in a unit [ CF ] as I understand (and I'm very confused) CF = 1Kwh so in a certain period of time you read the register (clear at reading) and get the Energy represented in this CF unit the chip uses but is this true? Do I need to accumulate this value somewhere?