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DS250DF410: Inquiry about register setting value of DS250DF410

PARK SANGHYUN
Intellectual 290 points
Part Number: DS250DF410
Other Parts Discussed in Thread: DS280DF810

How do I write the register setting value when I want to use DS250DF410 with the configuration below?

rate : 25.78125Gbps

  • 0
    TI__Expert 8585 points

    Hello Park,

    Standard Data Rate Settings

    The DS2x0DFx10 channels must each be preprogrammed for the expected data rate(s) to ensure CDR lock. Users can program the rate/sub-rate to one of a set of pre-defined standard values to quickly configure the DS2x0DFx10. The rate/sub-rate settings are programmed by writing to channel Reg_0x2F[7:4].

    Table. Standard Rate Modes Configurable from Reg_0x2F

    STANDARD RATE SETTING

    REG_0x2F VALUE [HEX]

    REG_0x2F WRITE MASK [HEX]

    10.3125 Gbps

    00

    F0

    10.9375 Gbps

    10

    12.5 Gbps

    20

    RESERVED

    30

    25.0 Gbps

    40

    25.78125 Gbps (default)

    50

    RESERVED

    60

    28.125 Gbps

    70 (DS280DF810 only)

    Regards,

    Kia Rahbar