About PMIC_ON_REQ

[goto11]

Hello,Community

About PMIC_ON_REQ in Figure 6-4. Chip reset scheme under PMU control in i.MX 7 Dual Applications Processor Reference Manual
There is a pull-up resistor in the signal line from FSM to PMIC_ON_REQ.

What is the value of the pull-up resistor?

Best Reguads

Goto

[Rita_Wang]

Hi Goto,

Here is the update from our expert team:

What is the customer purpose for this ticket ?

Normally we have internal pull-up for PMIC_ON_REQ.

Hope this can do help for you.

Have a nice day

Rita

[goto11]

Hello,

There is a resistance component in the external input circuit connected to the PMIC_ON_REQ pin.
This is to check whether the voltage divided by internal pull-up for PMIC_ON_REQ is within the standard value of the external input circuit.

Best Reguads

Goto

[Rita_Wang · Accepted solution]

Hi Goto,

This is the reply from our expert:

Can not find the detail information about pull-up for PMIC_ON_REQ in design, and we have no resource to check the imx7d layout;

    You can try to do followng test to measure internal pull-up for PMIC_ON_REQ :

  ---try different  external resistor, and measure the voltage on pad PMIC_ON_REQ , and then caculate the internal pull-up;

Hope this can do help for you

Have a nice day

Rita

[Rita_Wang]

I need to confirm it for you, and then give you reply as soon as possible.