SLVUDB6 August   2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Additional Images
    2. 2.2 Power Requirements
    3. 2.3 Setup and Connecting the EVM
    4. 2.4 Header and Jumper Information
    5. 2.5 Push Buttons and Switches
    6. 2.6 Driver Interfaces
    7. 2.7 Test Points
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 Software Installation
      1. 3.2.1 Downloading USB2ANY Firmware (For USB2ANY Explorer or TXE81XXEVM-GUI)
    3. 3.3 GUI Installation
      1. 3.3.1 USB2ANY Explorer GUI
      2. 3.3.2 TXE81XXEVM-GUI
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks
    2. 5.2 Terminology

2.6 Driver Interfaces

The TXE81XXEVM can operate with SPI clock signals of up to 10MHz when VCC is between 3.3V to 5.5V, or 5MHz when VCC is between 1.65V to 5.5V.

The TXE81XXEVM has several options for SPI driver interfaces. The on-board USB2ANY circuit located on the bottom of the EVM, allows for quick access to a SPI driver that can communicate to the TXE81XX up to 8 MHz SPI.

TXE81XXEVM USB2ANY Driver Figure 2-10 USB2ANY Driver

The EVM can be paired with an external MCU such as MSPM0 for programming the TXE81XX on the EVM. for more information, see How to Program TXE81XX SPI I/O Expander Family.

TXE81XXEVM Using MSPM0 to Program the Device Figure 2-11 Using MSPM0 to Program the Device

The EVM also has a connector specific to third party tools such as Total Phase Aardvark, Total Phase SPI Cheetah, or Total Phase Promira Serial Platform, through J5.

TXE81XXEVM Total Phase Products Connect to J5 of the EVM Figure 2-12 Total Phase Products Connect to J5 of the EVM

Common micro controller boards such as Arduino or ESP32 can also be used via the external header connections for 4-wire SPI on J13.

TXE81XXEVM Common Dev Boards Such as Arduino and ESP32 Products are Compatible With the TXE81XXEVM Through SPI Headers Figure 2-13 Common Dev Boards Such as Arduino and ESP32 Products are Compatible With the TXE81XXEVM Through SPI Headers