Some power-constrained applications can't afford to make use of [[#Deep-sleep mode (aka suspend)|deep-sleep mode]] when the system ''has nothing to do'', because wake up process may take too long to complete. In such situations aggressive implementation of so-called idle mode can come to help.

* Some HW hardware modifications are required to obtain the minimum minimize power consumption:** CAN Transceiver SN65HVD232 (U4) is removed, beaceuse it doesn't have low power functionalitytransceiver has been turned off** All the unneeded pull-ups on signals in the VDD_SNVS_IN voltage domain are have been removed** LCD_DATA14 is connected to MPUART0_ON signal in order to shutdown RS232 transceiver* Power monitors: two custom current probes have been used**power probe #1 is connected to the input power rail at 12V**power probe #2 is connected to the input power rail of the PMIC NXP PF3000; this, in turn, powers processors subsystem, as depicted in TBD Two idle configurations have been tested, detailed in the following sections. Nomenclature is the same used in the shutdown via unused processor's data sheet<ref name="IMX6ULIEC">Freescale Semiconductor, ''i.MX 6UltraLite Applications Processors for Industrial Products Data Sheet'', Rev. 1, 04/2016</ref>. Please note that the consumption measured by power probe #2 takes into account PMIC PF3000 tooGPIO. TBD

In this case the default governor (<code>interactive</code> governor ) is used.