SPRUJA8 January   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1.     Preface: Read This First
      1. 1.1.1 Sitara MCU+ Academy
      2. 1.1.2 If You Need Assistance
    2. 1.1 Introduction
    3. 1.2 Kit Contents
    4. 1.3 Device Information
  6. 2Hardware
    1. 2.1 Component Identification
    2. 2.2 Power Requirements
      1. 2.2.1 Power Tree
    3. 2.3 Functional Block Diagram
    4. 2.4 Header Information
    5. 2.5 Test Points
    6. 2.6 Interfaces
      1. 2.6.1 Ethernet Interface
        1. 2.6.1.1 Industrial Ethernet PHY
        2. 2.6.1.2 Industrial Ethernet PHY Strapping Resistors
        3. 2.6.1.3 LED Indication in RJ45 Connector
    7. 2.7 Integration Guide
      1. 2.7.1 Board Dimensions
      2. 2.7.2 DF40GB Connector
      3. 2.7.3 Mounting Holes
      4. 2.7.4 RJ45 Ethernet Connector
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 Trademarks
  9. 5References
    1. 5.1 Reference Documents
    2. 5.2 Compatible Sitara™ MCU AM2x EVMs

2.4 Header Information

The DP83826-EVM-AM2 is equipped with a Hirose DF40GB 2x24-pin connector (J2) to connect to Sitara AM2x EVMs. Listed below are the features of this connector relevant to this EVM:

  • 2x24 pins
  • Shielded type to support high-speed signals and prevent noise
  • High density mounting

Refer to Table 3-1 for a complete list of the header pins and descriptions.

Table 2-1 DF40GB Header Pinout
Pin # Signal Description Description Signal Pin #
1 GND Ground PMIC External Voltage Monitor EXT_VMON2 2
3 TX_CLK Transmit Clock 2.5V supply VDD_2V5 4
5 GND Ground 2.5V supply VDD_2V5 6
7 TX_D0 Transmit Data 0 Ground GND 8
9 TX_D1 Transmit Data 1 Interrupt To Ethernet PHY PWDN/INTn 10
11 TX_D2 Transmit Data 2 Reset input to Ethernet PHY RESETn 12
13 TX_D3 Transmit Data 3 Collision Detected COL 14
15 GND Ground Ground GND 16
17 GND Ground Ground GND 18
19 RX_CLK Receive Clock MDIO Clock MDIO_MDC 20
21 GND Ground MDIO Data MDIO_MDIO 22
23 RX_D0 Receive Data 0 Ground GND 24
25 RX_D1 Receive Data 1 Inhibit INH 26
27 RX_D2 Receive Data 2 PRUx Reference Clock REF_CLK 28
29 RX_D3 Receive Data 3 Carrier Sense CRS 30
31 GND Ground Ground GND 32
33 GND Ground Ground GND 34
35 TXEN Transmit Enable Board Connection Detect BRD_CONN_DET 36
37 GND Ground Test Point (open) TP 38
39 RX_ER Receive Data Error I2C Clock I2C_SCL 40
41 GND Ground I2C Data I2C_SDA 42
43 RX_LINK Receive Indicator IO Voltage Supply VDDIO 44
45 RXDV Receive Data Valid IO Voltage Supply VDDIO 46
47 NC No Connect No Connect NC 48