• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 32 subscribers
  • Views 121 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DS160PR410: Way to Get Out of LTSSM Receiver Detection State

Shinichi Yokota
Genius 9715 points
Part Number: DS160PR410

Hello,

Can DS160PR410 get out of the Receiver Detection state of LTSSM without a termination resistor at a receiving device connected after the DS160PR410 if the RXDET is in the L3 state? I'm referring to the Table 3 of the DS160PR410 data sheet.

Best regards,
Shinichi Yokota

  • 0
    TI__Genius 14631 points

    Hi Shinichi-san,

    The DS160PR410 does not participate in the link training process outside of RX Detect. If DS160PR410's RXDET is set to L3 (Always 50 Ohm), the DS160PR410's receivers will always appear as a 50 Ohm termination to the transmitter connected to it. Thus, if a signal is supplied to DS160PR410's transmitter in this state of always 50 Ohm termination, it will pass it through to its transmitter (plus CTLE, etc.).

    Best,
    David

  • 0 in reply to David Waier
    TI__Genius 9715 points

    David,

    Please let me clarify your feedback.

    Is it correct to understand that in the L3 state the Root Complex (transmitter) detects the DS160PR410 as a receiver?

    Best regards,
    Shinichi Yokota

  • 0 in reply to Shinichi Yokota
    TI__Genius 14631 points

    Hi Shinichi-san,

    In the L3 state, the Root complex transmitter would see termination from the DS160PR410 receiver, as this mode sets the DS160PR410 receiver termination to 50 Ohms always.

    Best,
    David