DP83822IF: Integrated Series Termination

Hirotaka Matsumoto

Part Number: DP83822IF

Hi all

Would you mind if we ask DP83822IF?

On the following document, there is the description "Integrated Series Termination" on the P8.
http://www.ti.com/lit/an/snla262/snla262.pdf

<Question1>
These "Integrated Series Termination" are inserted at RX_ER, CRS_DV, RXCLK, TXCLK, COL, and RX_D[3:0] pins.
Is our recognition correct?

<Question2>
This impedance is possible to adjust using register "MAC Impedance Control".
So, is it possible to disable "Integrated Series Termination" function?

Kind regards,

Hirotaka Matsumoto

over 6 years ago

0 Geet Modi over 6 years ago

TI__Mastermind 26320 points

Hi,

It offers capability to adjust those thru register IO MUX GPIO Control Register.

Please refer to datasheet for details.

Regards,

Geet

0 Hirotaka Matsumoto over 6 years ago in reply to Geet Modi

Guru 27585 points

Geet san

Thank you so much for your reply.

Could you give us the reply for <Question1> and <Question2>?
As the conclusion, our assmuption is correct?
<Question1> -> These "Integrated Series Termination" are inserted at RX_ER, CRS_DV, RXCLK, TXCLK, COL, and RX_D[3:0] pins.
<Question2> -> "Integrated Series Termination" function doesn't disable.

Kind regards,

Hirotaka Matsumoto

0 Hirotaka Matsumoto over 6 years ago in reply to Geet Modi

Guru 27585 points

Hi team

We guess that your days are so busy, however could you give us the reply for our last update?

Kind regards,

Hirotaka Matsumoto

0 Hirotaka Matsumoto over 6 years ago in reply to Geet Modi

Guru 27585 points

Geet san

We guess that your days are so busy, however could you give us the reply for last update?

Kind regards,

Hirotaka Matsumoto

0 Geet Modi over 6 years ago in reply to Hirotaka Matsumoto

TI__Mastermind 26320 points

Hi,

These are integrated and have options to adjust them but can't be eliminated.

Regards,

Geet

Interface

Interface forum

DP83822IF: Integrated Series Termination