i.MX ProcessorsのトピックRe: pins state during POR

pins state during POR

eishishibusawa — Wed, 15 Nov 2017 08:37:02 GMT

Dear Sir

I want to ask you about i.MX6ULL.

Q1.

I want to know the state of the pins during POR is asserted.

Does it have been described in the manual or data sheet?

Best Regards,

Eishi SHIBUSAWA

Re: pins state during POR

joanxie — Tue, 21 Nov 2017 05:13:19 GMT

refer to the data sheet:

"The SRC_POR_B signal controls the processor POR and must be immediately asserted at
power-up and remain asserted until the VDD_ARM_CAP, VDD_SOC_CAP, and VDD_PU_CAP
supplies are stable. VDD_ARM_IN and VDD_SOC_IN may be applied in either order with no
restrictions."

for more detailed information, pls refer to the Power-Up Sequence of data sheet.

Re: pins state during POR

Yuri — Fri, 24 Nov 2017 04:44:17 GMT

Hello,

There are pin states, provided in the DataSheet(s), relate to situation just after reset ;

pin states during power on \ reset are not guaranteed.

Regards,

Yuri.