“Gateway to the cloud” claims TI for Cortex-M4 MCU with Ethernet MAC+PHY

November 01, 2013 // By Graham Prophet
Texas Instruments has added to its Tiva C Series microcontrollers with the Tiva TM4C129x MCUs which are the first ARM Cortex-M4-based MCUs with Ethernet MAC+PHY, enabling customers to create a new class of sophisticated, highly connected products that connect to the cloud for Internet of Things (IoT) applications.

Tiva TM4C129x MCUs offer a range of simultaneous connectivity options, as well as on-chip data protection and LCD controller to save significant board space and enable connected, advanced applications, such as home/building automation gateways, connected human-machine interface (HMI), networked sensor gateways, security access systems, programmable logic controllers and many others.

Developers can start evaluating Tiva TM4C129x MCUs with the Tiva DK-TM4C129X Connected Development Kit, which uses the on-chip Ethernet MAC+PHY. The kit also includes two ports for BoosterPack connectivity, making this development kit the first of its class to directly connect the TI MCU LaunchPad ecosystem to the Internet. Combined with this development hardware, its fully integrated software platform provides a powerful development ecosystem. The MCUs are built on the TivaWare software foundation with more than 50 accompanying software application examples, which accelerate programming time and allow developers to concentrate on delivering differentiated products. A broad ecosystem offers a variety of development options, including TI's Eclipse-based Code Composer Studio integrated development environment (IDE), along with a myriad of third-party tools and software.

Tiva TM4C129x MCUs:

- Connect to and communicate with products and services with 10/100 Ethernet MAC+PHY with advanced line diagnostics for identification of cabling issues. Integrated CAN and USB provide high-speed connectivity, allowing the creation of seamless gateway solutions.

- Control outputs and manage multiple events, such as lighting, sensing, motion, display and switching, using sensor aggregation capabilities with 10 I 2C ports, two fast, accurate 12-bit analogue-to-digital converters (ADCs), two quadrature encoder inputs, three on-chip comparators, external peripheral interface, as well as advanced pulse-width modulation (PWM) outputs.

- Address varying application memory needs with pin for pin compatibility across the TM4C129x portfolio. With 256 kB of integrated SRAM and 6 kB EEPROM to support greater functionality, along with a scalable 512 kB to 1 MB Flash memory offering to support 100,000 program cycles for extended in-field updates and reliable operation.

- Add data and tamper protection