SNVU825 May   2022 DP83TC813R-Q1 , DP83TC813S-Q1

 

  1. 1Revision History
    1.     Trademarks
  2. 2Introduction
    1. 2.1 Key Features
    2. 2.2 Operation – Quick Setup
      1. 2.2.1 Onboard Power Supply Operation
      2. 2.2.2 SMI Connection and Communication
        1. 2.2.2.1 Onboard MSP Connection
        2. 2.2.2.2 Downloading USB2MDIO for SMI
        3. 2.2.2.3 SMI Interface
      3. 2.2.3 Master and Slave Mode Selection – DP83TC813
      4. 2.2.4 Autonomous/Managed Selection – DP83TC813
      5. 2.2.5 LED Indication
  3. 3Board Setup Details
    1. 3.1 Block Diagram
    2. 3.2 Configuration Options
      1. 3.2.1 Clock Configuration
  4. 4Definitions
  5. 5Schematics
    1. 5.1 Main Block Schematic
    2. 5.2 DP83867 Schematic
    3. 5.3 Power Schematic
    4. 5.4 AFE Schematic
    5. 5.5 Comms Schematic
    6. 5.6 Hardware Schematic
  6. 6Layout

Onboard Power Supply Operation

  • The EVM can operate from a single supply connected to the turret (TP8: VIN, TP9: GND) or barrel jack connector (J22).
    • Wide Vin: 5 V to 30 V
  • Place shunts on J20, and J21 to enable onboard LDOs for VDD3P3, and VDD1P0
  • Place shunt on VDDMAC. This supply can have adjustable voltages depending on location of shunt.
    • J1 for 3.3V operation
    • J3 for 1.8V operation
    • J5 for 2.5V operation
  • Place shunts on J10 (left and center) to keep WAKE pin high
Figure 2-3 Onboard Supply Connection and Jumpers
Figure 2-4 WAKE Jumper
Note:
  • The board can also be powered over USB by populating J9 and connecting the USB cable to a 5V source such as a laptop. Ensure the external supply is not connected to turrets or barrel jack when using the USB power. This header has a 5-V maximum limit.