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DS80PCI402 for SerialLite II

Ahmed Marei
Prodigy 20 points
Other Parts Discussed in Thread: DS80PCI402, DS64BR401

Hi all,

We are using the DS80PCI402 PCI Express Repeater for our Board-to-Board PCI Express data. Is it possible to use one channel for SerialLite II data?

Thanks in advance.

  • 0
    TI__Mastermind 29655 points

    Hi Ahmed,

    The DS80PCIxxx family was designed and evaluated specifically for PCIe standards, so you will need to determine whether the DS80PCI402 can fit the needs and parameters of SerialLite II data. If none of the specs are violated, then you may certainly use one channel to pass SerialLite II data.

    I pulled up the documentation for SerialLite II Protocol on the Altera website. It looks like this protocol's electrical specifications was created in a way so that XAUI and CEI interface designs could be reused in the SerialLite II setting. Perhaps the best fit is something like the DS64BR401, a quad-lane repeater designed for SAS (6G)/ SATA (6G)/ XAUI/RXAUI applications.

    Thanks,

    Michael

  • 0 in reply to Michael Lu (Santa Clara)
    Prodigy 20 points

    Hi Michael,

    Thanks for your reply. The problem is that we have the hardware already and we are using the DS80PCI402. We originally planned to use PCIe for all channels but we are considering changing only one channel to SerialLite II. Then we need to test it and see if it will work, we wanted to make sure first that from the Repeater's side there is no problem to pass the data. 

    Thanks,

    Ahmed

  • 0 in reply to Ahmed Marei
    TI__Mastermind 29655 points

    Hi Ahmed,

    Understood. Looking at the electrical specifications of SerialLite II, I believe that the DS80PCI402 should be able to pass SerialLite II data, so long as none of the electrical abs max are violated by the input signal to the repeater (for example, the input amplitude should be within 0.6-1.2Vpp).

    As a reminder, there are some things that PCIe protocol does not incorporate (for example, OOB signaling) that you will need to test in order to determine if the DS80PCI402 channel performs as you require.

    Thanks,

    Michael