SNLU237A September   2018  – January 2024 DP83869HM

 

  1.   1
  2.   DP83869EVM
  3.   Trademarks
  4. 1Definitions
  5. 2Introduction
    1. 2.1 Key Features
    2. 2.2 Quick Setup
      1. 2.2.1 Onboard Power Supply Operation
      2. 2.2.2 External Power Supply Operation
      3. 2.2.3 Software
        1. 2.2.3.1 MSP430 Driver
        2. 2.2.3.2 USB-2-MDIO Software
  6. 3Board Setup Details
    1. 3.1 Block Diagram
    2. 3.2 EVM High-Level Summary
  7. 4Configuration Options
    1. 4.1 Bootstrap Options
      1. 4.1.1 Straps for PHY Address
      2. 4.1.2 Strap for DP83869 Functional Mode Selection
      3. 4.1.3 Straps for RGMII/SGMII to Copper
      4. 4.1.4 Straps for RGMII to 1000Base-X
      5. 4.1.5 Straps for RGMII to 100Base-FX
      6. 4.1.6 Straps for Bridge Mode (SGMII-RGMII)
      7. 4.1.7 Straps for 100 M Media Converter
      8. 4.1.8 Straps for 1000 M Media Convertor
    2. 4.2 SGMII/Fiber Interface
    3. 4.3 RGMII
    4. 4.4 Clock Output
    5. 4.5 Clock Input
    6. 4.6 Switch Configuration Options
  8. 5Schematics
  9. 6Revision History

2.2.1 Onboard Power Supply Operation

The EVM can be supplied power through multiple options. Single-supply operation uses onboard LDOs to generate the voltages required for operating various sections of the EVM (PHY, MSP430, FO transceiver, and so forth).

GUID-5E486481-3327-4804-A9B0-033254D4A51F-low.gifFigure 2-3 Onboard Power Supply Connection

The EVM can be supplied power by either a J25 barrel jack connector, power-supply turrets, or a USB

  • For Barrel Jack and Turret, connect the jumper in the ON position to J22 and the jumper on 5V-LDO to J34.
  • For USB power, connect the Jumper on 5V-USB position to J34. J22 is don’t care.