DP83822I: MIN and MAX value of T2 ～ T5 on 7.7 Timing Requirements, Reset Timing P11

Hirotaka Matsumoto

Part Number: DP83822I

Hi all

Would you mind if we ask DP83822I?

How much are MIN and MAX value of T2 ～ T5 on 7.7 Timing Requirements, Reset Timing P11?
The datasheet shows typ data.
Our customer would like to know tolerance.

Kind regards,

Hirotaka Matsumoto

over 7 years ago

0 Aniruddha Khadye over 7 years ago

TI__Mastermind 18425 points

Hello Matsumoto-san,

We are looking into this request. Can you tell me how the customer is planning to use this information?

-Regards,
Aniruddha

0 Hirotaka Matsumoto over 7 years ago in reply to Aniruddha Khadye

Guru 27585 points

Aniruddha san

The customer use it data as reference, so when the TA changes, they would like to know how much tolerance will be.
On the other hand, as their company's regulation, they have to confirm that the result of measurement is within the range or not.

Kind regards,

Hirotaka Matsumoto

0 Hirotaka Matsumoto over 7 years ago in reply to Hirotaka Matsumoto

Guru 27585 points

Aniruddha san

Thank you so much for your support always!

We are sorry to rush you, however could you let us know when you get these infromation?

Kind regards,

Hirotaka Matsumoto

0 Hirotaka Matsumoto over 7 years ago in reply to Hirotaka Matsumoto

Guru 27585 points

Aniruddha san

We are sorry to rush you, could you give us your circumstance?

Kind regards,

Hirotaka Matsumoto

0 Aniruddha Khadye over 7 years ago in reply to Hirotaka Matsumoto

TI__Mastermind 18425 points

Matsumoto-san,

We are in the middle of updating our datasheets with more information in Power Up and Reset timing diagrams which will help customers. We won't be able to provide max values for T3, T4, and T5 in section 7.7 but we can provide max value for T2 in section 7.6 and section 7.7. This is the maximum time that the MAC would have to wait after power-up and reset before it can start communicating with the PHY.

Updates:
Section 7.6 Power Up Timing
T2 = 200ms (MAX)

Section 7.7 Reset Timing
T2 = 2ms (MAX)
T3 = 120ns (TYP)

-Regards,
Aniruddha

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DP83822I: MIN and MAX value of T2 ～ T5 on 7.7 Timing Requirements, Reset Timing P11