i.MX8M Mini platform - Pin Delays

[Jay_Vakaskar]

Hello, I have a question regarding to the i.MX8M Mini platform: 

Pin delays for the i.MX8M Mini package?
There is NO specific information for the pin delay of i.MX8M Mini

We have the NXP's reference Allegro board file LAY-47712_A.brd and there is some info inside the constraint manager of pin delay. I've attached the information for reference in "LAY-47712 A - Pin Delay Information.xlsx" below.

Can use the Pin Delay constraint or there is any specific change in it.

iMX8MMINI 

[riteshmpatel]

Hi @Jay_Vakaskar,

Hope you are doing well.
Please accept my apologies for delay in response.

The package delay information is explicitly provided only for the DDR signals in the HDG document. However, the package delays of the other pins can be quite precisely estimated by taking the IBIS model and calculating the delay from the L_pin and C_pin values assigned for each pin by using the following formula:

delay = sqrt(L_pin*C_pin)

You can confirm this on the DDR pins where the values obtained by this calculation roughly match with those in the Hardware Developer's Guide.

Thanks & Regards,
Ritesh M Patel