The Programmable Real-Time Unit and Industrial Communications Subsystem (PRU-ICSS / PRU-ICSSG) is a small processor that is tightly integrated with an IO subsystem, offering low-latency control of IO pins on TI’s SoC devices including the AM335x, AM437x, AM57x, and AM65x Sitara Processors. The PRU-ICSS / PRU-ICSSG is customer-programmable and can be used to implement simple and flexible control functions, peripherals, and state machines that directly access IO pins of the device, as well as can communicate with the application cores.

Similar to existing KeyStone-based SoC devices, the 66AK2Gx enables both the DSP and ARM cores to master all memory and peripherals in the system. This architecture facilitates maximum software flexibility where either DSP- or ARM-centric system designs can be achieved. 

This curriculum provides an in-depth look at the K2G Processors, Processor SDK-Linux and TI-RTOS, and the Programmable Realtime Unit (PRU).