To return to normal mode from sleep mode, the device must first transition to restart mode due to one of the following conditions:

• LIN bus wake-up
• WAKE pin state change
• EN = high for greater than t_{FM_CHANGE}

Once the device transitions to restart mode, the SWE timer starts. The device must enter standby before this timer times out. Additionally, all faults must be cleared from the device. If either of these two conditions are not met, the device re-enters sleep mode. Otherwise, the same procedure outlined in Section 2.2.2 and Section 2.2.3 applies.