SLVUDB6 August 2025
This guide helps to evaluate TI's family of serial peripheral interface (SPI) to general-purpose input/output (GPIO) expanders, which includes TXE8116 / TXE8124 / TXE8148 (16 bit / 24 bit / 48 bit). The information in this guide provides the details for flashing the on-board USB2ANY circuit, online TXE GUI access, utilizing the MSPM0 as an external SPI driver, and information for using a third party SPI driver with common platforms such as ESP32, Arduino, Total Phase SPI drivers, an so forth.
The TXE81XXEVM evaluation kit has multiple test points, male and female headers, and LED indicators to allow for intuitive bench testing of TXE81XX. The board is designed for ease of access to each GPIO, as well as many connections for the use of an oscilloscope. The board can be powered by an external power supply or by a USB connection from a standard PC.