https://ez.analog.com/power/battery-management-system/w/documents/30526/when-reading-the-register-data-of-max77818-is-the-data-format-msb-first-or-lsb-first
When reading the register data of MAX77818, is the data format MSB first or LSB first? - Documents...
According to the actual data reading, it should be MSB first.