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Processors
At the center of most modern complex electronic systems is a processor or controller. This group is dedicated to information on all types of system-level embedded and general-purpose processors and controllers.
This group contains information on CPUs, DSPs, MCUs, MPUs, and other types of processors and system controllers.
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- The Inquirer's processor feed is updated daily. Great stuff.
- News, in-depth tutorial feature articles, and Design Ideas published in EDN.com's Processor-Based Design Center.
Are you about to start a new design with massive signal-processing requirements, such as a media gateway or the latest MRI device? If so, consider using a DSP farm connected via the Serial RapidIO (sRIO) protocol, or just go out and buy a DSP "farm on a chip."
Serial RapidIO is a high-speed, packet-switched, point-to-point protocol with a predictable low latency. It's ideally suited for connecting scalable DSP farms used in video transcoding, industrial imaging, media gateways, wireless basestations, and other applications where bandwidth and low latency are crucial. A "farm on a chip"—a semiconductor that contains several DSP-type processors and fast interconnect—serves the same purpose as connecting several DSP chips together for the same types of applications.
The terminology involved in multicore design can get pretty confusing. It involves designers coming from different backgrounds and target markets—software versus hardware, embedded versus general-purpose, and so on. That being said, the following is an attempt to clear the air by providing some basic definitions.
Imagine a low-cost video processor for small screens that requires little energy and still packs a punch. Vivace Semiconductor's VSP100 offers all of these qualities, providing QVGA (240 by 320 pixels) playback in real time at 30 frames per second (see the figure). And since it's quite capable of handling today's compute-intensive standards like H.264, MPEG-4, and WMV9, you can design your next-generation consumer device with confidence.
Imagine that the earth's rotation became unpredictable and varied between one and 100 hours. What effects would this have on life as we know it? Utter chaos would ensue, and many species would cease to exist.
With ICs, chaos leading to failure is guaranteed if you try to use a replacement IP block or core that isn't "cycle accurate" to improve speed, reduce power usage, and decrease area. In fact, if you try to use such a block or core, you probably will have to redesign and retest a large percentage of the design.
When it comes to multiprocessing, what’s good for the hardware goose is not necessarily good for the software gander. The ideal hardware architecture for a multicore design is a heterogeneous (asymmetric) single instruction-set architecture (ISA) that essentially includes both high- and low-complexity cores to achieve lower power and higher throughput, somewhat mitigating Amdahl’s Law1.
The terminology involved in multicore design can get pretty confusing. It involves designers coming from different backgrounds and target markets—software versus hardware, embedded versus general-purpose, and so on. That being said, the following is an attempt to clear the air by providing some basic definitions.
Are you about to start a new design with massive signal-processing requirements, such as a media gateway or the latest MRI device? If so, consider using a DSP farm connected via the Serial RapidIO (sRIO) protocol, or just go out and buy a DSP "farm on a chip."
Serial RapidIO is a high-speed, packet-switched, point-to-point protocol with a predictable low latency. It's ideally suited for connecting scalable DSP farms used in video transcoding, industrial imaging, media gateways, wireless basestations, and other applications where bandwidth and low latency are crucial. A "farm on a chip"—a semiconductor that contains several DSP-type processors and fast interconnect—serves the same purpose as connecting several DSP chips together for the same types of applications.
Imagine a low-cost video processor for small screens that requires little energy and still packs a punch. Vivace Semiconductor's VSP100 offers all of these qualities, providing QVGA (240 by 320 pixels) playback in real time at 30 frames per second (see the figure). And since it's quite capable of handling today's compute-intensive standards like H.264, MPEG-4, and WMV9, you can design your next-generation consumer device with confidence.
- 3DSP Corporation is the leader in configurable, scalable digital signal processor (DSP) architecture.
Xelerated is a fabless semiconductor company recognized as being the only network processor vendor to have combined the efficiency of an ASIC with the programmability of traditional network processors. Xelerated’s award-winning products target network equipment for the metro, access and high-end enterprise markets.
Leveraging its team’s outstanding track record for building systems and ASICs, Xelerated has successfully introduced full programmability into a base ASIC architecture rather than trying to increase the performance of general-purpose processors, which is the traditional NPU approach.
RC Systems has been a market leader of low cost, high quality text-to-speech and voice synthesis products since 1983. You'll find our voice synthesizers in a wide range of products, from talking ATMs to vending machines, and homeland security to space satellite telemetry systems.
Through continuous innovations in advanced port processing and intelligent port connectivity, Cortina Systems, Inc is a leading supplier of intelligent communication solutions for the Core, Metro, Access, Enterprise and Digital Home network market segments. Cortina delivers a wide suite of products that address customers' performance, density, and flexibility needs with state-of-the-art, high-speed, analog-digital integration technology. Cortina solutions enable faster time-to-market, longer time-in-market, and increased revenue opportunities. Working closely with customers to understand their system requirements and anticipate their needs, Cortina is creating the foundation for new generations of services.
