Renesas processors for industrial automation have built-in networking

November 19, 2014 // By Graham Prophet
Renesas’ RZ/T1 Real-Time Processor comprises a real-time CPU with up to 600 MHz operation and the R-IN engine, offering both real-time control and deterministic network connectivity for industrial equipment

The RZ/T1 Group is a factory automation solution with built-in industrial network functionality for use in many industrial applications such as AC servo drives, motion controllers, inverter control and general industrial equipment that require high speed, responsiveness, and excellent real-time performance. Demand for improvements in performance and network connectivity are addressed by combining high-performance, real-time control and multi-protocol industrial Ethernet communication functions on a single chip.

The RZ/T1 group of devices is built around the ARM Cortex-R4F core operating at up to 600 MHz and is configured with two regions of tightly coupled memory, which is linked directly to the CPU core, removing the need for cache memory. TCMs support critical routines, such as interrupt handling routines or real-time tasks, ensuring the highest level of responsiveness with no cache latency. The RZ/T1 also integrates the R-IN Engine industrial Ethernet communication accelerator. It provides the same multi-protocol features as the Renesas R-IN Series, with support for multiple industrial Ethernet communication standards, including EtherCAT.

Renesas says that traditional solutions such as high-frequency microprocessors (MPUs) with cache memory are unsuited for real-time control because of the unpredictability characteristics of cache memory. And, while microcontrollers (MCUs) with on-chip flash memory are likewise marketed for real-time control, the increasing performance requirements are driving them to hit their performance ceiling. Deterministic, open standard networks such as EtherCAT, Ethernet/IP, and PROFINET are becoming mainstream in all types of industrial equipment. Supporting such standards typically requires the use of a separate ASIC with dedicated communication functionality, which leads to increased system cost and circuit board footprint.

The RZ/T1 devices likewise retain many of the peripheral functions of the Renesas RX Family and SH Family, making it easier for system manufacturers to design scalable industrial control equipment systems using multiple Renesas architectures.


Development support has already been announced by IAR Systems, see this item.

Next page; features list for the RZ/T1..