DS90UB948-Q1: Mode config

Joey Jin

Intellectual 2920 points

Part Number: DS90UB948-Q1

Hi ,team

If use 948 as 1-lane FPD-Link III Input, Dual Link OpenLDI Output, could we use RIN1 and leave RIN0 NC?

over 3 years ago

0 Shu Huang over 3 years ago

TI__Mastermind 18046 points

Hello Joey,

The FPD-Link Receiver input or output can be left floating when not in use. However, the deserializer need to connect at RIN0 as the FPD-Link must be connected to PORT0 to work. I will verify this in lab to confirm again. Is there a specific reason you would like to use RIN1 instead of RIN0?

Best,

Shu

0 Joey Jin over 3 years ago in reply to Shu Huang

TI__Intellectual 2920 points

Hello Shu

Thank you for your reply and your confirm experiment.

Customer use RIN1 because they found the layout router will cross if use RIN0 , if we must use RIN0 in this case, there is no problem that to persuade the customer change to RIN0.

0 Shu Huang over 3 years ago in reply to Joey Jin

TI__Mastermind 18046 points

Hi Joey,

If it is possible then we recommend the customer to change to RIN0.

Best,

Shu

0 Joey Jin over 3 years ago in reply to Shu Huang

TI__Intellectual 2920 points

Hi Shu,

ok.

If verify experiment have result, please update the information to me ,THS!

0 Shu Huang over 3 years ago in reply to Joey Jin

TI__Mastermind 18046 points

Hi Joey,

I do not have any updates at the moment, I hope to have a confirmation next week.

Thank you,

Shu

0 Shu Huang over 3 years ago in reply to Shu Huang

TI__Mastermind 18046 points

Hi Joey,

I checked further with the team. On the 948, it is possible to program register 0x34 to use PORT1. However, this needs to be set locally on the DES and cannot be done remotely through the SER.

Hope this helps,

Shu

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DS90UB948-Q1: Mode config