Assert the EN pin (active high) if it was previously deasserted.
If register 0x01 already holds the desired value and the STANDBY bit is low, the user can skip this step. Set the MODE value to 3 (PWM/Analog Mode) at address 0x01. If the STANDBY bit was previously asserted, this bit should be deasserted (logic low) at this time.
Select the input mode (PWM or analog) in the Control3 register (address 0x1D). If this mode was selected during the initialization procedure, the user can skip this step.