The 78M6613 HPL Firmware is a turnkey energy measurement solution optimized for use in AC high-power load units (HPLs), also known as “split-phase”. At the sensor interface, the 78M6613 with HPL Firmware supports two voltage sense inputs and two current sense inputs. At the host interface, ready-to-use data is available over a low baud-rate serial interface for minimal cost of data isolation. Other key attributes of the HPL solution for the 78M6613 include: