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  • DP83TC812S-Q1: DP83TC812S-Q1 PHY Slave Mode

    Part Number: DP83TC812S-Q1 Dear TI Team, We have tried to configure the DP83TC812S-Q1 PHY in Slave mode, and we have a Technica Media Converter which is switched to Master Mode. The Slave configuration are done via SW as per following sample code from…

  • DP83TC812S-Q1: dp83tc812s-q1 cannot detect the up status

    TI Thinks Resolved
    Part Number: DP83TC812S-Q1 Other Parts Discussed in Thread: DP83TC811S-Q1 , Dear TI engineers, We use dp83tc812s-q1 as automotive Ethernet phy in the new TBOX product, SCH is as shown below, but there is a problem that the SOC cannot detect the network…

  • DP83TC812S-Q1: EVM crystal is being overdriven?

    TI Thinks Resolved
    Part Number: DP83TC812S-Q1 We’re having some issues with the 25MHz crystal circuit for the DP83TC812S-Q1. We are having issues with the crystal being over driven. The EVM has a 1kΩ series R on the XO pin. We’ve tested that value and are still…

  • [FAQ] DP83TC812S-Q1: How to disable 25MHz clock on clkout pin?

    Part Number: DP83TC812S-Q1 For DP83TC812S/R if clkout pin is not being used to provide a clock signal to another component, then it is recommended to shut down this clock output and reduce its impact on EM emissions. Clkout's output can be made static…
    • Answered

  • DP83TC812S-Q1: TRD common mode voltage

    Resolved
    Part Number: DP83TC812S-Q1 Hello, For reliability and redundancy purposes, and for very small overall network length (<1m), we would like to switch the TRM lines between 2 targets. We would then like to know the output common mode voltage of the TRD…
    • Resolved

  • DP83TC812S-Q1: output TX_TCLK on LED1 - not working

    TI Thinks Resolved
    Part Number: DP83TC812S-Q1 I am working on some verification of the DP83TC812S ethernet phy. I am trying to output TX_TCLK onto LED_1 and I can’t seem to get it to work. I have tried writing a few different values to LED1_CLKOUT_ANA_CTRL Register with…
    • Answered

  • DP83TC812S-Q1: Can INH pin be left floating when TC-10 is not used?

    Resolved
    Part Number: DP83TC812S-Q1 Dear TI friends For DP83TC812S-Q1, c an INH pin be left floating when TC-10 is not used?
    • Resolved

  • DP83TC812S-Q1: some questions

    Part Number: DP83TC812S-Q1 Hi team, My customer Marelli use 812s in their lighting domain control projects, and have some questions maybe need your help. Thanks! Is it possible to complete the automatic setting of the entire RMII mode through autonomous…

  • RE: DP83TC812S-Q1: Vsleep and WAKE pin

    Hi Hillman, Customer have 1uF capacitor to ground. For 720s, For 812s, Chuqiang Wen said: 720s INH spike - 2 Besides, as showed above, the spike width is about 200us, it seems not a transient noise, it is hard to remove it just by a little RC circuit…

  • DP83TC812S-Q1: Register Sequence - Moving out of Managed Mode

    TI Thinks Resolved
    Part Number: DP83TC812S-Q1 Hi Team, Referring to managed mode comment on page 62 of the datasheet: 1) Should we write this register for transitioning it to Autonomous mode 0x018B,0x0443 before or after doing a soft reset and writing 0x0523U, 0x0000U? 2…

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