Hi hmani,
I understand that LSBs won't improve accuracy. (2^41)-1 = 2.199e12 and (2^24)-1=16777215. So obviously LSBs won't affect the value. But suppose I want to test an energy metering circuit made on PCB with ADE7758 and MCU. Then initially, obviously there will be zeros in the first 16 bits of the 41-bit register. So I will get zero till the kW-hr consumption goes above 16777.215 (since (2^24)-1 = 16777215 Whr)? Is this right?