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DS160PT801: DS160PT801

Prashanth Pai B Pai
Prodigy 250 points
Part Number: DS160PT801

Hi TI Experts,

We are using single DS160PT801 and planning to use below Seders line . Width pin is pulled down using  20Kohm for  2 x4 Independent Links.

A_PERp0:3/A_PERn0:3 ,A_PETp0:3/A_PETn0:3   B_PERp0:3/B_PERn0:3 and  B_PETp0:3/B_PETn0:3 (These lines are used in our design)

Please find the block diagram below FYR.

Questions:

1.Is this configuration is good to go?

2.A_PERp4:7/A_PERn4:7 ,A_PETp4:7/A_PETn0:3   B_PERp4:7/B_PERn4:7 and  B_PETp4:7/B_PETn4:7 are not connected (NC). Can we leave this pins as open or NC?

3.Is it possible to receiver loop-back of individual lanes in below configuration?

  • 0
    TI__Mastermind 18950 points

    Hi Prashanth,

    Prashanth Pai B Pai said:
    1.Is this configuration is good to go?

    Yes, it should be fine.

    Prashanth Pai B Pai said:
    2.A_PERp4:7/A_PERn4:7 ,A_PETp4:7/A_PETn0:3   B_PERp4:7/B_PERn4:7 and  B_PETp4:7/B_PETn4:7 are not connected (NC). Can we leave this pins as open or NC?

    The ideal case is to terminate unused high-speed pins with an AC coupling capacitor and a 50 Ohm connection to GND, but if this is difficult, then the easiest option is to leave them NC.

    Prashanth Pai B Pai said:
    3.Is it possible to receiver loop-back of individual lanes in below configuration?

    I believe this is possible through at least an external loopback method negotiated through the endpoint and root complex. I am checking with my team for confirmation and will try to get back to you soon. In case I will need to explain confidential device information, I have sent you an E2E friend request to open the private message function.

    Best,

    Evan Su

  • 0 in reply to Evan Su
    Prodigy 250 points

    Hi,

    Please help me on "Receiver loop-back of individual lanes"

    Thanks and Regards,

    Prashanth Pai B

  • 0 in reply to Prashanth Pai B Pai
    TI__Mastermind 20901 points

    Hi Prashanth,

    The device allows for local Port loopback, specified in the configuration guide section 5.2.36. However, the device does not allow for individual lane loopback configuration.

    Best,
    David