ARM announces two new Cortex-R series processors for real-time applications
February 01, 2011 // Phil Ling
Architectural enhancements are driven by software developers' needs, as the two additional cores to the R series add greater support for dual-core configurations and target applications that demand high performance with real-time response. It boosts the number of cores in the R series to three, sitting alongside the company's complementary Cortex-M and Cortex-A series.
Delivering sustainable real-time performance using ever-faster processors, while ensuring binary compatibility across a growing number of platforms, presents significant architectural challenges.
ARM believes its Cortex family, which encompasses the A series (for Applications), the M series (for Microcontroller) and the sometimes overlooked R series (for Real Time) delivers the binary compatibility, but it is the R series that addresses the demands of applications that require high performance with real time response.
The first and, until now, only Cortex-R processor, the R4, has been in the market since 2006 and although its profile isn't as high as the Cortex-M and Cortex-A series, ARM maintains it is prevalent in mobile applications as well as disk drive technology, while Texas Instruments uses an R4 core in one of its high-end microcontroller devices. In fact, ARM claims that in many ways the Cortex-M4 is almost identical to the Cortex-R4, although the R4 offers up to twice the raw 'binary' performance.
More importantly, ARM's research shows that the R4's use in these applications is often in a dual-core configuration, forcing the licensee to implement cache coherency and multicore support, two of the main enhancements ARM has added to the latest Cortex-R cores, the R5 and the R7.
While the R5 offers about the same processing power as the R4, it is these architectural enhancements to support the core that deliver the benefits, in the form of simpler firmware development. This, in turn, frees up processor cycles that can be 'spent' elsewhere.
ARM stated that the majority of its core developments are now driven by the needs of software engineers, which now outnumber hardware engineers. While the Cortex-M series cores are 'naturally' real-time, the demands of the applications targeted by the R series demand more sophisticated features to maintain the real-time performance; the M4 is designed to run at around 150MHz, while the R7 can run at up to 1GHz.
The R7 adds all the architectural features of the R5 and pushes their performance even higher, according to ARM. In addition to the dual-core support, both the R5 and R7 will be available in single- and dual-core versions using the company's existing MPCore technology, which has been re-implemented for the R series.
Multithreading boosts ThreadX on MIPS cores
December 06, 2013
Imagination Technologies and Express Logic have expanded their support of the ThreadX real time operating system on Imagination’s ...
UK distribution sees 5% growth in 2014
Global M2M innovations design contest
PHI Group plans acquisition Nord Energy to extend LED street lighting offering
EV market is much more than passenger cars - and it's booming
Stanene may be better than Graphene
December 06, 2013
A team of researchers led by Stanford University professor Shoucheng Zhang now have high hopes that a new material they call ...
US demand for LED lighting to grow more than 10 percent annually to 2017, reports Freedonia
Women demand different connectivity functions in the car
Advanced batteries reached $10.8bn in market value in 2012, reports Navigant Research
- 3mm × 3mm QFN IC Directly Monitors 0V to 80V Supplies
- UltraCMOS® Semiconductor Technology Platforms: A Rapid Advancement of Process & Manufacturing
- Adaptive Cell Converter Topology Enables Constant Efficiency in PFC Applications
- Isolated 4-Channel, Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy
InterviewPerformance monitoring solution helps provide intelligent control of high power systems
A performance monitoring solution designed to enable companies to monitor high power IGBT module systems in locomotive, wind turbine, High Voltage DC and industrial drive applications was unveiled this ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
Internet of Things (IoT) manufacturer Ciseco has launched the Raspberry Pi ‘Wireless Inventors Kit’ (RasWIK), featuring 88 pieces to provide everything a Pi owner needs to follow a series of step-by-step projects or to create their own wireless devices, without the need for configuration or even writing code.
RasWIK has been designed to be highly accessible, demystifying the dark art of wireless and enabling anyone with basic computing skills to begin building wireless devices with a Raspberry Pi. You can create anything from a simple traffic light, to a battery monitor, or even a temperature gauge that sends data to the Xively IoT cloud so billions can access the data.This month, Ciseco is giving away twelve Raspberry Pi Wireless Inventors kits, worth £49.99 each for EETimes Europe's readers to win.
And the winners are...
In our previous reader offer, Farsens was giving away five kits for EEtimes Europe readers to evaluate its FenixVortex, Kineo and X1 wireless, battery free sensor tags.
Lucky winners include Mr A. Neil from the UK, Mr. E. Delvaux from Belgium, Mr Lengal from the Czech Republic, Mr H. Bijlsma from the Netherlands, and Mr G. Pfaff from Germany. All should be receiving their packages soon. Lets wish them some interesting findings with their projects.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.