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need DS250DF410 EEPROM programming guide

Justin Wang
Prodigy 50 points

Other Parts Discussed in Thread: DS125DF410, DS250DF410, DS250DF810

Dear Sir,

I see you have EEPROM Programming Guides for  DS110/125 series and  DS250/280 series retimers,

But  I can't find a guide for DS250DF410. Is it the same as DS125DF410?

Is the SMBus-to -EEPROM register maps the same as DS125DF410?

(I've check SNLA228, SNLA244, SNLA245)

Thanks!

  • 0
    TI__Mastermind 29655 points
    Hi Justin,

    We do not have one currently for the DS250DF410. The closest programming guide to that one is the one for the DS250/280 devices. The DS250DF410 EEPROM operates in a similar structure as the DS250DF810, but there is only one die used in the DS250DF410, as opposed to two within the DS250DF810.

    What this means is that only the first of the four address map headers per slot will be used by each DS250DF410 device. This is the only difference with the DS250DF810 EEPROM programming, where two of the four address map headers per slot are used.

    The DS250DF410 map is not comparable with the DS125DF410, as the digital for both devices are different.

    Regards,

    Michael
  • 0 in reply to Michael Lu (Santa Clara)
    Prodigy 50 points

    Hi Michael,

    Thanks for your help.

    I've made a map for 2 Devices (DS250DF410), CRC disabled

    - Enable Address Map Header

    - Enable Common Channel Configuration

    - Set EEPROM =< 256 Bytes

    - Device Count = 2

    Would you please take a look at it?

    Anything wrong please let me know.

  • 0 in reply to Justin Wang
    TI__Mastermind 29655 points
    Hi Justin,

    The EEPROM looks clean to me. The only comment I would add is that in the very first byte, you specify the Device Count by setting the lower nybble to be "1," so the first byte should be 0x51. The device count is one less than the number of devices connected. While the device count ultimately makes no difference when it comes to how the DS250DF410 loads the EEPROM, it's just helpful as a reference.

    Also, please note that in order for your devices to work with this EEPROM .hex file, Device 0 must be configured with address 0x30 (or 7-bit address 0x18), and Device 1 must be configured with address 0x32 (or 7-bit address 0x19).

    Regards,

    Michael