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Texas Instruments (TI) Interface support forum is an extensive online knowledge base where millions of technical questions and solutions are available 24/7. You can search interface IC content or ask technical support questions on everything from ESD protection to interfacing with USB, Ethernet, and HDMI. Find the right solution for your circuit design challenges by using our TI E2E™ support forums that are supported by thousands of contributing TI experts.
Frequent questions
  • [FAQ] Can Auto-negotiation link up with Force mode on 100mbps?

    Hillman Lin
    Hillman Lin
    • Answered
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] DP83822IF: Fiber Link Status

    Alvaro (Al-vuh-roe) Reyes
    Alvaro (Al-vuh-roe) Reyes
    Part Number: DP83822IF Other Parts Discussed in Thread: DP83822HF , The DP83822IF and DP83822HF are the fiber capable variants of the DP83822. Bit 2 in Register 0x0001 indicates link status for both Copper and Fiber modes of operation. In copper mode…
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] Extended Register Space Access for Ethernet PHYs

    Alvaro (Al-vuh-roe) Reyes
    Alvaro (Al-vuh-roe) Reyes
    Our Ethernet PHYs have a standard set of registers, 0x0-0x1F, that can be accessed in a straight forward fashion. Registers beyond 0x1F require a different approach to access. This FAQ is intended to provide a few examples on how to read/write these…
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] SN65DSI86: SN65DSI86 Resolution Guide

    Allison Noe
    Allison Noe
    Part Number: SN65DSI86 What display resolution will the SN65DSI86 support?
    • Answered
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] DP83867E: What is the default mode of RGMII when using DP83867, shift or align?

    Gerome Cacho
    Gerome Cacho
    Part Number: DP83867E When bootstrapped to be in RGMII mode, DP83867 will be in shift mode by default; not align mode. The modes will be corroborated via Reg 0x32[1:0].
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] DP83869HM: How to generate 125MHz on CLKOUT pin for DP83869

    Gerome Cacho
    Gerome Cacho
    Part Number: DP83869HM DP83869HM needs an additional register to be written to enable CLKOUT modification. By default, this signal is a buffered version of the XI signal. Reg 0xC6 must have 0x10 written in order for the value in Reg 0x170[12:8] to take…
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] TI Ethernet PHY Capacitive Coupling (Transformerless Operation)

    Alvaro (Al-vuh-roe) Reyes
    Alvaro (Al-vuh-roe) Reyes
    Other Parts Discussed in Thread: DP83869 Summary: All of our Industrial Ethernet PHYs support Transformer-less Operation via Capacitive Coupling except for the DP83867. The DP83867 does not support Transformer-less Operation. List of Industrial…
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] DP83867E: Ethernet PHY SGMII Vdiff Upper and Lower Input Limits

    Alvaro (Al-vuh-roe) Reyes
    Alvaro (Al-vuh-roe) Reyes
    Part Number: DP83867E Other Parts Discussed in Thread: DP83869 The DP83867 and DP83869 both have the same Vdiff Upper and Lower Input Limits of: 100 mV and 800 mV
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] What capacitance should my ESD diode be?

    Ethan Sempsrott
    Ethan Sempsrott
    Other Parts Discussed in Thread: ESD2CANXL24-Q1 , ESD2CAN24-Q1 , ESD2CANFD24-Q1 , ESD122 What should be considered when selecting a diode with parasitic capacitance?
    • Answered
    • over 2 years ago
    • Interface
    • Interface forum
  • [FAQ] DP83825I: How to adjust the Output Differential Voltage (VOD) of the DP83825I

    David Creger
    David Creger
    4540.DP83825I VOD Adjustment.pptx
    • over 2 years ago
    • Interface
    • Interface forum
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    DS99R106: Pin RAOFF compatibility setting with DS90UR241 0 Locked

    228 views
    3 replies
    Latest over 1 year ago
    by Aaron Heng
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    1 reply
    Latest over 1 year ago
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    DS90UH948-Q1: Rin+ noise measurement in IVI SerDes 0 Locked

    192 views
    1 reply
    Latest over 1 year ago
    by Miguel Bolante
  • Answered

    SN74LVCH16T245: recommended operating max VOH and min VOL 0 Locked

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    2 replies
    Latest over 1 year ago
    by Joshua Salinas
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    DS90LV047-48AEVM: LVDS 0 Locked

    419 views
    13 replies
    Latest over 1 year ago
    by Brian Zhou
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    DP83867E:Register for Ethernet Compliance test 0 Locked

    136 views
    1 reply
    Latest over 1 year ago
    by J
  • Answered

    DP83825I: IBSI model supporting clock input 0 Locked

    148 views
    1 reply
    Latest over 1 year ago
    by J
  • Suggested Answer

    TMUXHS4212: TI SOLUTION 0 Locked

    174 views
    1 reply
    Latest over 1 year ago
    by Nir Gilgur
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    TUSB1310A: USB3.2 PHY device 0 Locked

    256 views
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    by Brian Zhou
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    973 views
    13 replies
    Latest over 1 year ago
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    TMDS1204: tmds1204 0 Locked

    183 views
    1 reply
    Latest over 1 year ago
    by David (ASIC) Liu
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    TIC12400-Q1: which internal blocks will be turned off during RESET? 0 Locked

    201 views
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    Latest over 1 year ago
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    TCAN2847-Q1: LDO 0 Locked

    209 views
    2 replies
    Latest over 1 year ago
    by Ivy Jin
  • Suggested Answer

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    287 views
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    Latest over 1 year ago
    by Evan Su
  • Suggested Answer

    TSER953: EVM Availability 0 Locked

    196 views
    1 reply
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    by Justin Phan
  • Answered

    DS90UB948-Q1: DS90UB941-Q1 0 Locked

    312 views
    3 replies
    Latest over 1 year ago
    by Zain Alfartosy
  • Suggested Answer

    DP83822I: Any part number recommendation for DC blocking capacitors 33nF ? 0 Locked

    249 views
    3 replies
    Latest over 1 year ago
    by David (ASIC) Liu
  • Not Answered

    DP83TC813R-Q1: DP83TC813R-Q1 Register 0x2 value read 0xFFFF via MDIO lines 0 Locked

    552 views
    10 replies
    Latest over 1 year ago
    by Drew Miller1
  • Suggested Answer

    DS90UB971-Q1: Map the GPO2 state of the serializer TI971 to the deserializer TI9702 0 Locked

    367 views
    4 replies
    Latest over 1 year ago
    by Hamzeh Jaradat
  • Suggested Answer

    DP83869HM: JTAG/Boundary Scan does not work 0 Locked

    368 views
    5 replies
    Latest over 1 year ago
    by J
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