DP83TG720S-Q1: MCU for the compliance test

Ryoma Ohashi

Part Number: DP83TG720S-Q1
Other Parts Discussed in Thread: USB-2-MDIO

Hi team,

My customer is designing a test board for a compliance test.

I would like to confirm one thing.

The MCU is only used for the register writing via MDIO, so it is not nessesary to use an MCU that can handle 1000BASE-T1.

Is this correct?

Regards,

Ohashi

over 1 year ago

+1 Alvaro (Al-vuh-roe) Reyes over 1 year ago

TI__Genius 11876 points

Hi Ohashi,

You're exactly right.

Regards,

Alvaro

0 Ryoma Ohashi over 1 year ago in reply to Alvaro (Al-vuh-roe) Reyes

TI__Intellectual 2580 points

Hi team,

I have an additional question.

My customer wants to rewrite register of DP83TG720S on thier test board.

Is it possible to rewrite the register of the PHY on the test board by connecting the MDC & MDIO pin of MCU which is on the EVM of 100BASE-T1 or 1000BASE-T1 PHY, and use USB-2-MDIO tool?

Regards,

Ohashi

+1 Alvaro (Al-vuh-roe) Reyes over 1 year ago in reply to Ryoma Ohashi

TI__Genius 11876 points

Hi Ryoma,

USB-2-MDIO is an example software to make it easy. You can connect the MDC-MDIO Pins to a MCU and read the registers that way as well, so long as they program their firmware to accept MDC-MDIO parameters as defined in IEEE802.3

Regards,

Alvaro

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DP83TG720S-Q1: MCU for the compliance test