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  • TI Thinks Resolved

TLK10232: TLK10232

Part Number: TLK10232

When I use PRBS at TLK10232, do I need set PRBSEN pin to high? Or, I just set reg:0x0b tx, rx and patten.

when I send pattern through DS125DF1610 cross back to TLK10232. reg:F will sometime show 0x1963 and show error. When I send to tester, it is OK.

when tester send cipri and detect 8b/10b. error free. When I use optical bert with patter, it always show 0x1963 and error? 

It seem not physical error, could you help on this?

thanks 

when I use pattern 2^7 -1, the pattern can sync and error free. 2^23-1 and 2^31-1 loopback through ds125df1610 will fail. My design SFP --> ds125df1610 --> tlk10232

  • Hello,

    The errors are likely to be due to signal integrity issues, including reflections on either link (SFP - DS125DF1610 or DS125DF1610 - TLK10232). You can look at the eye diagram on each side at the receiver to check. If the distances are small then reflections won't see much attenuation. One thing to try to adjust the DS125DF1610 settings (boost, etc.).

    Regards,
    Yaser
  • In reply to Yaser Ibrahim:

    Hello Cannie,

    Regarding the PRBSEN pin, you don't have to set it high. You can just configure the appropriate registers.

    Regards,
    Yaser

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