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DP83822I: Question bout register typo and internal circuit

Satoshi
Guru 19495 points
Part Number: DP83822I
Other Parts Discussed in Thread: DP83822H, DP83848I, TLK105L, TLK105, TLK106, TLK106L

Please let me know about two points below for DP83822I (or DP83822H) function.

①About datasheet page-65, default value is described "101 1111 1111" and "0x5EE", which is correct?

②Basically, Are DPxxxxx series based on the same internal circuit?

　For example, are DP83822I and DP83867's 100 Base-T internal block is the same process? (in addition, ADC/DAC block, etc)

　If Yes, is old Ether PHY series (DP83848I) the same process,too? 　

Best regards,

Satoshi

  • 0
    TI__Mastermind 23675 points
    Hi Satoshi,

    0x5EEh is correct. The bit field is incorrect. Thank you for pointing this out.

    DP83822 and DP83867 are same process but do not have similar blocks.
    The DP83822 is pin-to-pin compatible to the TLK105, TLK105L, TLK106 and TLK106L PHYs so this device is a current mode line driver design.
    The DP83867 is a voltage mode device.

    The DP83848 is an older process than the DP83822 and DP83867, which is why the DP83848 has higher current than the other two devices.

    Kind regards,
    Ross