iMX8MP IBIS Model Selection

[michaelperreca]

Hello,

I'm currently using an iMX8M Plus in a design an attempting to do a signal integrity analysis on my RGMII lines.  There's not much documentation included in the IBIS zip file so i'm looking for clarification on what pin model i should be using on my RXD and TXD pins.

Thanks.

[JosephAtNXP]

Hi,

Thank you for your interest in NXP Semiconductor products,

The documentation within the ZIP file cannot be extended, it has already all the information regarding IBIS simulation for the device,

Based on RGMII unique pins, SAI1_TXD2 and SAI1_RXD6, respectively AH11 and AH10, this is the model to be used.

[Pin]   Signal_name          model_name             R_pin     L_pin      C_pin

AH10 SAI1_RXD6 PBIDIRHS_E33_33_NT_DR_H 0.40338 2.23E-09 8.88E-13                                 enet1.RGMII_RD2

AH11 SAI1_TXD2 PBIDIRHS_E33_33_NT_DR_H 0.34821 1.99E-09 8.54E-13                                 enet1.RGMII_TD2

Then, that is the model to be used, mapped through the desired pads and as seen, the model to be used is the same for TX and RX pins.

Thank you!