• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 32 subscribers
  • Views 263 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DP83846A: TYPO in the datasheet (pin 46 , (RX_ER/PAUSE_EN)

JUAN MILLAN
Prodigy 40 points
Part Number: DP83846A

Could you confirme me that there is not a typo in page 8 (RX_ER/PAUSE_EN).

It specified this pin (46) with PU but in the description of this PIN is the oppossite behaviour:

PAUSE ENABLE: This strapping option allows advertisement of whether or not the DTE(MAC) has implemented both the optional MAC control sublayer and the pause function as specified in clause 31 and annex 31B of the IEEE 802.3x specification (Full Duplex Flow Control).

When left floating the Auto-Negotiation Advertisement Register will be set to 0, indicating that Full Duplex Flow Control is not supported.

When tied low through a 5 kΩ, the Auto-Negotiation Advertisement Register will be set to 1, indicating that Full Duplex Flow Control is supported. The float/pull-down status of this pin is latched into the Auto-Negotiation Advertisement Register during Hardware-Rese

  • 0
    TI__Mastermind 26320 points
    Hi Juan,

    I did not find any thing conflicting in description.

    PAUSE_EN : this triggers to set 0 or 1 in Auto-Neg flow control register.

    PAUSE_EN: when left floating ( the pins is internally Pulled-Up : PU) : it will write 0 to Flow Control bit.
    when pulled-down ( thru 5 K) : it will write 1 to Flow Control bit.

    BTW, this part is not recommended for new designs, you shall look for using DP83822 instead.

    Regards,
    Geet