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Sitara processors – Industrial communication

TI's Sitara Arm® processors feature a unique peripheral, the Programmable-Real time Unit Industrial Communications Subsystem (PRU-ICSS), which eliminates the need for an external ASIC or FPGA by enabling the integration of real-time industrial Ethernet and Fieldbus protocols.

Ethernet, Fieldbus, encoder and redundancy protocols are available for the PRU-ICSS, including certified solutions for EtherCAT, Profibus, Profinet and others. The PRU-ICSS supports multiple protocols on the same hardware using firmware supplied by TI through the industrial software packages and stacks from industry partners.

Multiprotocol communications

Enable multiple industrial protocols on one platform through TI’s PRU-ICSS


PRU-ICSS is integrated across the Sitara portfolio from single to multicore Arm® Cortex®-A processors

Reduce space and cost

The integrated PRU-ICSS can be used to replace an external communications ASIC or FPGA to free up space and reduce cost

Industrial Communications Diagram

What is PRU-ICSS?

PRU-ICSS (Programmable Real-Time Unit Industrial Communication Subsystem) is a subsystem containing Programmable Real-Time (PRU) cores which run Ethernet and Fieldbus protocols. PRU cores are mainly used for industrial communication, but can also be used for general purpose applications.

PRU-ICSS features

  • Support for multiple protocols on one platform:
    • PROFIBUS, PROFINET (RT/IRT), SERCOS-III, Ethernet/IP (with DLR), POWERLINK, EtherCAT, CC-Link IE Field Basic and others
    • Master and Slave protocols
    • Redundancy protocols such as HSR & PRP
    • Encoder protocols such as BiSS C, EnDAT 2.2, Tamagawa and HIPERFACE DSL
    • Standard 10/100Mb Ethernet
  • Fully tested, certified, and supported solutions
  • Protocol-specific software available from TI’s industrial software package
  • General-purpose software available from Processor SDK


See devices supporting the PRU-ICSS.

PRU-ICSS diagram


Software package
Applicable devices
PRU-ICSS Industrial Software AM335x, AM437x, AM57x, 66AK2Gx, AMIC110

Technical documents

EtherCAT® on Sitara™ Processors (Rev. I)

EtherCAT® is among the leading industrial Ethernet communication standards. We offer integrated EtherCAT slave and master capability on Sitara processors that target industrial I/O, sensor, PLC and HMI systems.

EtherNet/IP on TI's Sitara AM335x Processors (Rev. D)

EtherNet/IP™ has dominated IT networking for the past three decades. Our comprehensive product, support and developer community greatly simplifies EtherNet/IP integration and can reduce system costs.