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How can you tell a DP83620 from a DP83630 in software?

Simon Peacock30
Prodigy 70 points
Other Parts Discussed in Thread: DP83620, DP83630

We have a series of products using both the DP83620 and 30 but currently we have to hard code the two.

The datasheet shows the Vendor Model as 001110b and Model Revision as 0001b for both.  We have tried reading the PTP clock and it also seems to be incrementing on both.

Are these actually the same silicon now?

if not, how can we detect the difference??

Thanks

Simon

  • 0
    TI__Mastermind 31600 points
    Simon,

    These two devices share alot of common functionality. There is not an individual register bit default that can be used to differentiate between them, but you could introduce a difference in defaults based on resistor strapping. For example, the DP83620 could be strapped for one PHY address and the DP83630 could be strapped for another PHY address.

    Patrick