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Graduate II
March 28, 2024
Solved

Where is ETH_PHY_INTN

  • March 28, 2024
  • 3 replies
  • 1845 views

In the reference Manual of STMH730, on Table 543, page 2825, there's a Port "ETH_PHY_INTN" listed. Where ist that port? Or where can I configure the GPIO to use for it? I cannot find anything in the datasheet.

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    Best answer by mƎALLEm

    Hello,

    Just got the feedback regarding this topic and thank you for your patience.

    The ETH_PHY_INTN pin is not available and it will be removed from the documentation. Meanwhile, this functionality could be managed by GPIO and EXTI.

     

    3 replies

    Super User
    March 28, 2024

    This is likely error in the RM. The Data sheet for H730 does not mention a pin function ETH_PHY_INTN.

    If you want to receive interrupts from your PHY interrupt output, it can be connected to any suitable pin.

     

    pkoevesdiAuthor
    Graduate II
    March 29, 2024

    @Pavel A. wrote:

    This is likely error in the RM. The Data sheet for H730 does not mention a pin function ETH_PHY_INTN.

    If you want to receive interrupts from your PHY interrupt output, it can be connected to any suitable pin.


    Yes, but the RM says "Bit 3 PHYIS: PHY Interrupt
    This bit is set when rising edge is detected on the ETH_PHY_INTN input. This bit is cleared when this register is read."

    So, to use this function, I'd have to tell, where I have my INT input connected. So, either there's a dedicated pin function for it, which we cannot find in the datasheet, or I'd expect some register to tell, which GPIO I use for it.

     

    Thank You for looking at it. For the first I assume, I can take any GPIO. Please tell here, if there's a special pin / function needed.

    Technical Moderator
    March 28, 2024

    Hello,

    I'm checking that internally. It could be a typo or a miss.

    pkoevesdiAuthor
    Graduate II
    April 5, 2024

    Any news on this?

    Technical Moderator
    April 5, 2024

    I will keep you informed as soon as I have a feedback.

    Super User
    March 29, 2024

    The ETH IP supports multiple products. Some of them may have a dedicated PHY interrupt input, then it goes into that register bit.  Let's wait for SofLit to check.