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Original question:

DS160PT801: Asking for DS160PT801 updated design review and suggestions

DS160PT801: PCIe Lane Setting and GUI Related Inquiry

MINWOOK JUNG
Prodigy 20 points
Part Number: DS160PT801
Other Parts Discussed in Thread: USB2ANY

Tool/software:

Hello. I am trying to connect the CPU and NIC Card with 4 Lane using DS160PT801.
- If you refer to the Configuration Guide, the figure shows that [redacted].
-> Is there a problem if I only use [redacted]?
-> In the currently manufactured board, [redacted]. Can this be a problem?

Also, referring to the EVM circuit, if I connect JTAG to USB2ANY and do Auto Detect in SigCon Architect 3.1, it fails. SMB_ADDR[1:0] is connected to GND with 1K. (Address 0x20)

-> In the EVM circuit, PINs 2,4,6,8,10 are GND, so should I connect USB2ANY with SMB instead of JTAG?

-> If I use only one DS160PT801, should I set Manager Address to 0x20 and Follower Address to N/A?

That's all. Thank you.

  • 0
    TI__Mastermind 20901 points

    Hi Minwook,

    Due to this device's documentation confidentiality, I have redacted portions of your post. I can happily help you with these questions in a private E2E message.

    Please accept my E2E friend request so that we can discuss this further offline.

    Regarding your questions about the EVM references:

    MINWOOK JUNG said:
    -> In the EVM circuit, PINs 2,4,6,8,10 are GND, so should I connect USB2ANY with SMB instead of JTAG?
    • SMBus should be used to access the DS160PT801's registers with the USB2ANY.
    MINWOOK JUNG said:
    -> If I use only one DS160PT801, should I set Manager Address to 0x20 and Follower Address to N/A?
    • Yes, that is correct.

    Best,
    David

  • 0 in reply to David Waier
    Prodigy 20 points

    Thanks David. I accepted your friend request.

    Is there a problem with the lane I mentioned?

  • 0 in reply to MINWOOK JUNG
    TI__Mastermind 20901 points

    Hi Minwook,

    4 lane configurations are supported. The documentation for this device is considered secure, which is why I've brought the discussion into private message. We can follow-up on discussions there.

    Best,
    David

  • 0 in reply to David Waier
    Prodigy 20 points

    Attached is the schematic for DS160PT801 Lane. The EEPROM is using AT24C16C-SSHM-B.
    I have confirmed that it is currently connected to SigCon Architect 3.1.
    Thank you.

  • 0 in reply to MINWOOK JUNG
    Prodigy 20 points

    I used the DS160PT801_4x4.hex file you provided for EEPROM.

  • 0 in reply to David Waier
    Prodigy 20 points

    Also, looking at the schematic, A_PER(left) is EP and A_PET(right) is RC.
    The datasheet says RC is connected to A_PER and EP is connected to A_PET, but my DS160PT801 board is connected the other way around.

    I'm currently testing my DS160PT801 board by connecting it between the motherboard and the NIC card.
    If I connect the motherboard and the NIC card without the DS160PT801 board, it connects to Gen2,
    but if I mount the DS160PT801 board on the motherboard and connect the NIC card, it connects to Gen1.
    Is the problem that A_PER and A_PET are reversed above, or is it because of the Lane in the configuration guide that I asked about at the beginning?

    I've attached a picture of SigCon Architect for additional reference.

    Thank you.

  • 0 in reply to MINWOOK JUNG
    TI__Mastermind 20901 points

    Hi Minwook,

    Please use our E2E private message to continue this discussion. As I've noted above, some of this material is considered secure, so I've removed it from this public posting.

    Note that this private message can be accessed from your message inbox at the top right-hand corner of the webpage.

    Best,
    David