Questions about pin swapping

ttd

Mastermind 8580 points

Part Number: TS3DV642

Dear Technical Support Team,

I have some questions about swapping.

If I use these case, it is easy to make pattern layout and place the parts.

I guess that these cases are possible because of just signal switch each pin.

However, I concern about the signal integrity when crossing the differential line.

1) Is it possible to swap the pin of MainLink signals below?

　 For example, connect ML_0+ to D1+

2）Is it possible to swap "+-" of MainLink signales?

　For example, connect ML_0+ to D0-

3）Is it possible to use both 1）and 2）case?

　 For example, connect ML_0+ to D1-

■Function block

Best Regards,

ttd

over 6 years ago

0 David (ASIC) Liu over 6 years ago

TI__Guru**** 176281 points

All high-speed port have the same electrical characteristics, you can connect the signals as you want. Just be careful the signal from the input side matches the signal from the output sides.

Thanks

David

0 ttd over 6 years ago in reply to David (ASIC) Liu

Mastermind 8580 points

Hi David,

Thank you for your reply.

I understand these 1,2,3 cases are OK.

I'm checking just to be sure, is it possible to switch the Pch and Nch for differential pair?

This device doesn't differential buffer and just multiplex the signals, so I think that the logic doesn't invert if switching the Pch and Nch.

Best Regards,

ttd

0 David (ASIC) Liu over 6 years ago in reply to ttd

TI__Guru**** 176281 points

TTD

You can swap the polarity of the channel as long as the input and output polarity matches with each other.

Thanks

David

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Questions about pin swapping