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The microcontroller featured in the Amazon Web Services FreeRTOS kit is an XMC4800-F100x2048, one of the XMC4800 series of MCUs, which has 2Mbytes of embedded Flash memory. The XMC4800 device is part of the XMC4000 family of MCUs based on the mid-range Arm® Cortex®-M4 processor core, which offers digital signal-processing and floating-point unit capabilities.

The XMC4800 is the first Flash-based Arm® Cortex®-M MCU series to provide an EtherCAT® slave interface, which has a 100Mbits/s data-transfer rate. It has two MII ports for EtherCAT, eight fieldbus memory management units, eight sync manager units and 64-bit distributed clocks.

Other communications capabilities of the XMC4800 MCU include an Ethernet controller, USB 2.0 On-The-Go controller with integrated PHY, a CAN interface with six nodes, and six configurable serial interface channels.

The XMC4800 also supports analog functions via four 12-bit ADCs, a delta-sigma demodulator and a two-channel, 12-bit DAC.

The XMC4800-F100x2048 on the AWS FreeRTOS board comes in two versions:

  • XMC4800F100F2048AAXQMA1 which has an operating-temperature range of -40°C to 85°C
  • XMC4800F100K2048AAXQMA1 which has an operating-temperature range of -40°C to 125°C
Features - XM4800-F100
  • 144MHz Arm Cortex-M4 core
  • 2Mbytes of Flash
  • 353kbytes of RAM
  • 100-pin package
  • On-board debugger
  • LED and touch-sense controller
  • SD and Multi-Media Card interface
  • Industrial drives
  • I/O modules
  • Motor-control systems
  • Switch-mode power supplies
  • Smart lighting


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