SPRUJE1 July   2024

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Key Features
      1. 2.1.1 Microcontroller
      2. 2.1.2 Power Supply
      3. 2.1.3 JTAG and Emulator
      4. 2.1.4 Expansion Connectors/Headers to Support Application Specific Add-On Boards
      5. 2.1.5 Adapter Boards
    2. 2.2 Important Usage Notes
      1. 2.2.1 Electrostatic Discharge (ESD) Compliance
      2. 2.2.2 IO Cable Length
    3. 2.3 Functional Block Diagram
    4. 2.4 Power ON/OFF Procedures
      1. 2.4.1 Power-On Procedure
      2. 2.4.2 Power-Off Procedure
      3. 2.4.3 Power Test Points
    5. 2.5 Peripheral and Major Component Description
      1. 2.5.1 UART Interface
      2. 2.5.2 JTAG Interface
      3. 2.5.3 DAC Interface
      4. 2.5.4 USB Interface
        1. 2.5.4.1 CC Controller
      5. 2.5.5 I2C Interface
      6. 2.5.6 Power
        1. 2.5.6.1 Power Requirement
        2. 2.5.6.2 Power Input
      7. 2.5.7 XDS110 Board User Setup and Configuration
        1. 2.5.7.1 JTAG/cJTAG Switch
        2. 2.5.7.2 UART and SPI Switch
      8. 2.5.8 Expansion Headers
        1. 2.5.8.1 Emulator Connector
        2. 2.5.8.2 DAC Header
        3. 2.5.8.3 Debug Header
      9. 2.5.9 Use Cases
        1. 2.5.9.1 Case 1: Non-Isolated XDS110 and controlSOM
        2. 2.5.9.2 Case 2: Isolated XDS110, controlSOM, Baseboard
  8. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 Bill of Materials (BOM)
  9. 4Compliance Information
    1. 4.1 Compliance and Certifications
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6Related Documentation
    1. 6.1 Supplemental Content

2.1.2 Power Supply

XDS110 board is powered through USB Type-C connector. The same connector is used to negotiate the power role and data role with the source device. The block diagram depicts the power flow of the XDS110 board.

XDS110ISO-EVM Power Architecture of XDS110 Figure 2-1 Power Architecture of XDS110

The following sections describe the power distribution network topology that supplies the XDS110 board, supporting components and reference voltages.

The XDS110 board includes a power design based on discrete power supply components. The initial stage of the power supply is VBUS voltage from the USB Type-C connectors J5. USB Type-C CC controller of Mfr. Part# TUSB320LIRWBR is used for negotiation of the required power to the system, role detection, cable orientation.

The DAC reference generator, DAC IC and CC Controller gets power from the 5V input source.

XDS110 board receives the 5V from the type C Connector. TUSB320 CC controller is used to authenticate the 5V/3A source connected. One LDO is used to generate 3V3 from 5V0 for powering the XDS110 MCU MSP432 and digital isolators. Another LDO is used to generate 4V1 from 5V0 for providing reference voltage to the DAC IC. Discrete regulators and LDOs used onboard are:

  • TUSB320LIRWBR ­­– To authenticate 5V/3A source connected.

  • LM4120IM5-4.1/NOPB – To generate VREF (4V1) reference voltage for DAC IC.

  • TLV70333DBVR – To generate VCC_3V3 rail for XDS110 MCU MSP432 and digital isolators.

Additionally, IO_TGT_V_FL is generated by the SOM board for providing 3V3 to digital isolators.