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Original question:

DP83TC811EVM: DP83TC811EVM

DP83TC811EVM: DP83TC811EVM

Manfred Egger
Prodigy 40 points
Part Number: DP83TC811EVM

Hello Rob,

I have the very same question, Klajdi asked on June 19th.

We just want to build up a converter from 4-wire to 2-wire Ethernet (and vice versa) to get an interface to automotive BroadR-Reach ( 100Base-T1).

According to  Your answer, the uC on the EVM is just necessary for special configuration of or reading registers from the 811 / 822.

What do You mean with OA compliance?

Did You get any special comments from Your FAE?

Thank You for replying asap.

Best regards, Manfred

  • 0
    TI__Mastermind 23675 points
    Hi Manfred,

    You can do a simple 4-wire to 2-wire solution my just wiring up a 100BAS-T1 PHY back-2-back with a 100BASE-TX PHY. There is no need to have a micro because our PHYs have bootstraps that allow for configuration at power-up.

    By default, the micro on the 811EVM is doing nothing. It’s not programming anything and just there as a tool for people to interact with the PHY by reading and writing registers.