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TLK2711-SP: TLK2711 power on reset

Anuradha c
Prodigy 90 points
Part Number: TLK2711-SP

Hi Sir,

        As i have gone through the TLK2711 SP datasheet. i found that during the power on reset condition, there must be active transition on receiver by transferring the data through RXP/N or by enabling the loopen. so can you please just that after enabling the loopen do i need to transfer the data through TXD or just enabling loopen is sufficient.

Regards,

Anuradha C

  • 0
    TI__Mastermind 19235 points

    Related to: "so can you please just (confirm) that after enabling the loopen do i need to transfer the data through TXD or just enabling loopen is sufficient.

    • Per datasheet: Upon application of minimum valid power and valid GTX_CLK with device enabled (ENABLE = HIGH), the TLK2711-SP generates a power-on reset. During the power-on reset the RXD0 to RXD15, RKLSB, and RKMSB signal pins go to a high-impedance state. The RXCLK is held low. LCKREFN must be deasserted (logic high state) with active transitions on the receiver during the power-on reset period. Active transitions on receiver can be accomplished with transitions on RXP/N or by assertion of LOOPEN
    • Thus, assertion of LOOPEN is sufficient for LCKREFN de-asserting

    Cordially,

    Rodrigo Natal

    HSSC Applications Engineer