i.MX50 : Power-up NVCC_SRTC and VCC at a time

[norishinozaki]

Hello Champs,

There is a power-up order for NVCC_SRTC and VCC.

Howerver, there is no specific timing for the between the two.

My customer would like to power-up the both at the same time.

Is it workable?

Best regards,

Nori Shinozaki

[igorpadykov · Accepted solution]

Hi Nori

datasheet recommends to power first NVCC_SRTC,

so powering power-up the both at the same time is not

recommended, sorry. Regarding specific timing, next power-up

sequence may start when NVCC_SRTC reached 90% level,

as described in AN4053  i.MX51 Power-Up Sequence

(one can folow that with i.MX50 power-up sequence too).

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

[norishinozaki]

Hello Igor,

Thanks for this kind of confirmations over several times.

I will follow i.MX51 Power-Up Sequence from now on.

Best regards,

Nori Shinozaki