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BeB's avatar
BeB
Icon for Occasional Contributor rankOccasional Contributor
5 years ago
Solved

Stratix 10 L-Tile Native PHY Reset Controller

Hello, I am using a Stratix 10 SX280LN3. To reset the PHY transmitter, the L-Tile Native PHY user guide recommends to "deassert tx_analogreset after the device enters user mode for a minimum durati...
  • CheepinC_altera's avatar
    CheepinC_altera
    5 years ago

    Hi,


    Thanks for your update. For your information, I do not have further insight into how internally the hardware handle the 2ms. Sorry for the inconvenience. However, based on my experience, generally users will use the reset controller to ensure correct functionality of the transceiver. Therefore, it is recommended for you to use the reset controller.


    Please let me know if there is any concern. Thank you.



CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


As I understand it, you have some inquiries related to the reset sequence of the transceiver. For your information, it is recommended for you to use the XCVR reset controller IP to control the reset sequence of the transceiver. After the device enter user mode, you can trigger a reset to the reset controller.


Regarding the user mode, it is referring to the device programming/initialization completion which is generally indicated by INIT_DONE low-to-high transition.

Please let me know if there is any concern. Thank you.


  • BeB's avatar
    BeB
    Icon for Occasional Contributor rankOccasional Contributor
    5 years ago

    Hello,

    Thank you for your reply, however the questions of appropriate setting remains:

    - the default reset controller IP settings do not match the recommended settings mentioned in the native PHY user guide (2ms for tx_analogreset, 5us for rx_digitalreset). Therefore, I have no reason to believe that any of the default settings in the IP block are appropriate.

    - what should the reset controller IP settings be for the other timers: tx_digitalreset and rx_analogreset?

    Thank you,

    BeB