The PMIC supports a dedicated I2C interface, I2C2, for access to the page 4 register space. This interface is only needed for watchdog configuration and only enabled with the GPIO is configured appropriately. The GUI will automatically interrogate the PMIC and use the I2C2 through the AEVM. If the I2C2 is not physically connected but the GPIO is configured for I2C2 operation the GUI will report an error when attempting to access the page 4 register space. In GUI version 2.0.0 this error is seen when the user attempts to read registers from page 4; READ REGISTER button. In GUI version 3.0.0 this error is seen immediately when the PMIC updates all registers upon connection and when using the READ ALL REGISTERS button. In both the GUI version 2.0.0 and 3.0.0 the error is reported as I2C read error. Status = 4294966526
This error can be ignored if the page 4 information is not needed. Also, establishing the I2C2 connection will remove this error.