Industrial bus connectivity for Renesas 32-Bit MCUs

October 14, 2014 // By Graham Prophet
Renesas Electronics, working with port GmbH has announced efficient multi-protocol connectivity solutions for PROFINET (CCA / CCB RT1), Ethernet/IP and CANopen stacks, as well as the associated design tools for the RX64M, Renesas’ 32-bit high-performance microcontroller group.

Working with its Alliance Partner port GmbH, Renesas has ported the widely adopted PROFINET, Ethernet/IP and CANopen software stack to its latest RX controller. The RX64M provides a platform for implementing leading field bus and communication technologies. It offers RAM of up to 512 kB, up to 4 MB of embedded flash, up to three controller area network (CAN) interface channels and two integrated Ethernet MACs.

This multi-protocol solution now expands the stacks available for the RX64M group with the addition of CANopen, PROFINET (CCA/CCB RT1) and Ethernet/IP. Solutions for EtherCAT and POWERLINK are also available as an on-demand option. The solution ensures that the Renesas RX64M product group is tailored to applications in the manufacturing, automation and process industries. The multi-protocol approach enables the RX64M group to cover all the major global communication technologies.

The RX64M group comprises 112 products, that all include high-speed flash memory, clocked at 120 MHz. They are based on the RXv2 CPU core, rated at 4.25 CoreMark/MHz performance. Using these new MCUs, system developers can now develop extremely powerful industrial applications with low power consumption and a wide range of communication functions.

The 32-bit RX64M MCU components have a maximum clock speed of 120 MHz. Combined with the extended CPU core architecture, they produce total computing power of over 240 DMIPS when executing code from integrated zero-wait state flash memory. The MCUs also provide significantly better processing performance for computing operations, due to their integrated 32-bit multiplier, a single-precision floating-point unit (FPU), and an extended 32-bit barrel shifter.

The stacks and drivers provided by port GmbH meet stringent and highly efficient coding and documentation standards, which were developed by port itself. These standards ensure that CANopen only needs a very small amount of memory while enabling high execution speeds and easy-to-read code. The company also offers active support for device certification (PNO, EPSG, CiA etc.). Customers can ensure they always receive stack and driver