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XIO2001: External EEPROM

ttd
Mastermind 8840 points
Part Number: XIO2001


Dear Technical Support Team,

I see following E2E and it said "The XIO2001 will work just fine without EEPROM”.

https://e2e.ti.com/support/interface/f/138/p/612920/2258811#2258811

I checked attached 6406.8240104C.zip and compared between default setting of Datasheet and EEPROM contains.

It seem two difference. Could you please the meaning about this.How behavior does XIO2001 with EEPROM(8240104C.wr3) ?  

I'd like to know that what register setting should I change for using XIO2001.

PCI C8h ： 80h →8240104C.wr3    00h→Datasheet default　(EN_L2_PWR_SAVE=1)

PCI EFh ： 00h →8240104C.wr3    01h→Datasheet default　(CACHE_TIMER_UPPER_LIMIT=1)

XIO2001.xlsx

Best Regards,

ttd

  • 0
    TI__Expert 8165 points

    Hello-

    As explained in the referenced e2e post, the  XIO2001 will work well without EEPROM and with datasheet defaults. The the PCIe-to PCI drivers in the operating system will configure the XIO2001 as needed including the registers PCI C8h and PCI EFh.

    Setting the register PCI C8h = 80h and PCI EFh = 00h is acceptable as well.

    Regards,

    Davor