AM335x IBIS model -- USB section

Rich Chen

Expert 4160 points

Dear Sir,

USB DP and DM modeling are not provided in IBIS model. Customer needs these model for USB SI simulation.

Is there additional model or document include this?

Any reason why USB signals modeling is not provided?

BR, Rich

over 11 years ago

0 Ems Wizard over 11 years ago

Prodigy 30 points

USB modeling is proprietary design so they won't give it to you. www.thetechinfogroup.com

0 Biser Gatchev-XID over 11 years ago in reply to Ems Wizard

TI__Guru**** 393215 points

Hi Rich,

This is an internal query related to your question. Answer is:

We don’t support IBIS models for the USB interface as this model type is not well suited to this interface. We instead recommend following the layout guidelines for USB interface.

Some documents to refer on this below –

http://www.ti.com/lit/an/spraar7/spraar7.pdf

http://www.usb.org/developers/docs/hs_usb_pdg_r1_0.pdf

0 Saravanan JN over 9 years ago in reply to Biser Gatchev-XID

Prodigy 10 points

Hi,

We are also looking for USBx_DP & USBx_DM models. Trying to refer below link but not able to access. Kindly help.

Thanks

0 Biser Gatchev-XID over 9 years ago in reply to Saravanan JN

TI__Guru**** 393215 points

We don’t support IBIS models for the USB interface as this model type is not well suited to this interface. We instead recommend following the layout guidelines for USB interface.

Some documents to refer on this below –

www.ti.com/.../spraar7.pdf

www.usb.org/.../hs_usb_pdg_r1_0.pdf

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AM335x IBIS model -- USB section