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AXEL ULite SOM/AXEL ULite Hardware/Power and Reset/Power Supply Unit (PSU) and recommended power-up sequence

213 bytes added, 10:03, 15 October 2020

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Fot information about power consumption, please refer to [[Power consumption (AXEL ULite)|this article]].

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== Power Supply Unit (PSU) and recommended power-up sequence ==

The typical power-up sequence is the following:

# (optional) PMIC_LICELL is powered by a Lithium coin cell battery

#*iMX6UL SNVS domain is powered ([[Pinout_(AXEL_ULite)#VDD_SNVS_IN|VDD_SNVS_IN]])

# VIN_SOM main power supply rail is powered

#*iMX6UL SNVS domain is powered ([[Pinout_(AXEL_ULite)#VDD_SNVS_IN|VDD_SNVS_IN]])

# CPU_PORn (active-low) is driven low

# PMIC_PWRON signal is pulled-up (unless carrier board circuitry keeps this signal low for any reason)

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