AnsweredAssumed Answered

i.MX6 ULL PowerUpSeuence

Question asked by miki takashi on Oct 16, 2018
Latest reply on Oct 17, 2018 by miki takashi

Please tell us about the following points in Power-Up Sequence of i.MX6ULL.


1. IMX6ULLIEC.pdf (DataSheet) has no sequence description for the following power supply.Would you mind thinking that there is no sequence order if it is after VDD_SNVS_IN?


2. Is there any problem with the POWER UP sequence(Step) below?

Also, at Step 4, the NVCC (* 1) power supply is still OFF, but can not leak to the NVCC (* 1) power supply terminal (* 2)?
-Step1 : VDD_SNVS_IN (+3.3V)
-Step2 : VDD_HIGH_IN (+3.3V)
-Step3 : VDD_SOC_IN (+1.35V)
-Step4 : NVCC_DRAM (+1.35V)
-Step5 : NVCC(*1) / VDDA_ADC_3P3 / ADC_VREF(+3.3V)

(*2)e.g. GPIO1 , GPIO2 , GPIO3 , GPIO4 , GPIO5


Thanking you in advance.