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

4.1 Bootstrap Options

All straps are only two-level straps in DP83869 except PHYADD straps. EVM support one pullup and one pulldown resistor pad on RX_D0 and RX_D2 for PHY address straps. There is only one pullup resistor on all other strap pins with a jumper option to disconnect.

Table 4-1 4 Level Straps
STRAP VALUEMODE 0MODE 1MODE 2MODE 3
Resistor PU (kΩ)Open105.762.49
Resistor PD (kΩ)Open2.492.49Open
Table 4-2 2 Level Straps
STRAP VALUEMODE 0MODE 1
Resistor PU (kΩ)Open2.49
Resistor PD (kΩ)2.49Open
GUID-A65FCDF4-0768-4B19-8009-185D08687F19-low.gifFigure 4-1 EVM Strap Jumpers