MMPF0100 can satisfy i.MX6DQ ERR007926 POR_B de-assertion timing?

[satoshishimoda]

Hi community,

I have a question about i.MX6DQ ERR007926.

According to errata sheet (IMX6DQCE Rev.5), "Extend the assertion of POR_B until the 32 kHz crystal oscillator is running and stable.".

MMPF0100 can satisfy this condition? or a reset IC is needed?

Best Regards,

Satoshi Shimoda

[igorpadykov · Accepted solution]

Hi Satoshi

MMPF0100 does not check this condition. However crystals may have different

start-up times (time necessary for crystal to become running and stable).

So one needs to choose proper crystal, or add external circuit to satisfy

this condition.

Best regards

igor

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