Monday, July 14, 2008

ADSP-BF561: Blackfin Symmetric Multi-Processor for Consumer Multimedia



ADSP-BF561: Blackfin Symmetric Multi-Processor for Consumer Multimedia


The Blackfin® Processor family expands the performance envelope with the ADSP-BF561. With two high performance Blackfin Processor cores, flexible cache architecture, enhanced DMA subsystem, and ...More


Features
Dual Blackfin cores with each core capable of 600 MHz/1200 MMACs (2400 MMACs total) for demanding signal processing applications.
Large On-Chip Memory of 328 KBytes – arranged as individual L1 memory systems for each core plus a shared L2 memory space.
High data throughput tailored for the needs of imaging and consumer multimedia applications.
Application Tuned Peripherals provide glueless connectivity to a variety of audio/video converters and general-purpose ADCs/DACs.
Diagrams

Markets & Applications
Digital Still Cameras
Digital Video Cameras
Portable Media Players
Digital Video Recorders
Industrial and Instrumentation
Set Top Boxes
Consumer Multimedia
Automotive Vision Systems
Broadband Wireless Systems


Clock Speed MHz (Max)
600MHz
MMACS (Max)
2400
RAM Memory (kBytes)
328
External Memory Bus
32bit
Parallel Periph Interface
Yes
PCI
No
USB Device
No
UARTs, Timers
Yes
Watchdog Timer, RTC
Yes,No
Core Voltage (V)
0.8-1.35
Core Voltage Regulation
Yes
Package
297-PBGA,CSP_BGA

Pricing, Packaging & Availability
Print Table
ADSP-BF561 Model Options

For More Detail Go On www.analog.com


Saturday, July 12, 2008

Intel® Multi-Core Technology

Intel® Multi-Core Technology

Multi-core processors are single chips that contain two or more distinct processors or execution cores in the same integrated circuit. While independent, their construction makes for interdependent task-sharing.
What does that mean for you? Increasingly, software is being developed that sends multiple instructions which need to be processed simultaneously.
Tens of thousands of times a second—especially while running intensive programs like high-definition video rendering or engineering programs—software is making decisions. Here’s how Intel® processors do it better.

Dual core shoot-out: Intel versus AMD

Dual core shoot-out: Intel versus AMD

Dual core processors work best when software can run in parallel on them. So-called 'multithreaded applications' benefit from an additional CPU core because subroutines can be allocated to different arithmetic and logic units. Administering the threads carries an overhead, though, which means that dual core processors are never exactly twice as fast as their single core counterparts.
Chip-makers AMD and Intel have released dual core processors aimed at users who need high arithmetic performance and use mainly multithreaded applications. Programs such as CAD/CAM and audio or video processing benefit particularly from a second processor core. However, AMD and Intel's dual core chips for this market cost between $500 and $1,000, and are therefore much too expensive for the mass market. .
Dual core and the officeRelatively little multithreaded software is used on standard office and home computers, so the purchase of a high-end dual core processor is rarely justified. Having said that, mainstream users can benefit from dual core technology. If several applications are active at the same time and certain tasks are stalled, then a dual core chip is worth having. For example, a hard disk defragmenter may be running in the background, leaving insufficient resources for a foreground application like a presentation. Similar effects can occur when antivirus or anti-spyware scans are active in the background. In these circumstances, a dual core chip can be very helpful even on a standard office PC.
When you consider what's going on beneath the surface of a typical office PC in a larger enterprise, it's arguable that a dual core processor can be justified here, too. Applications installed by the IT department can create a multitude of processes -- these may not always be active, but it's almost inevitable that at some point a crucial productivity task (finishing a presentation, for example) will be held up by a lack of computing resources.Now that both Intel and AMD have affordable dual core processors available (the $241 Pentium D 820 and the $328 Athlon 64 X2 3800+ respectively), there's little to stop this technology being widely adopted.
AMDs Athlon 64 X2 3800+ has two CPU cores, each with 512KB of Level 2 cache and running at 2GHz.

AMD Athlon™ X2 Dual-Core Processors for Desktop

AMD Athlon™ X2 Dual-Core Processors for Desktop



Compare AMD Processor specificationsGet help choosing the right AMD-powered system that meets your needsCompare Prices on AMD-powered systems and processors
Do more in less time with true multi-tasking Increase your performance by up to 80% with the AMD Athlon™ X2 dual-core processor. Work or play with multiple programs without any stalling or waiting. Dual-core technology is like having two processors, and two working together is better and faster than one working alone.

Friday, July 11, 2008

The Architecture Of Pentium 4

Intel's declining image and the success of its opponent AMD forced the chip giant to act different than ever before. While it used to be very difficult to find out any details of upcoming Intel-processors ahead of their release in the past 10 years, Intel was giving major amounts of architectural information about Pentium 4 to whomever was asking for it. Thus I am sure that most of you have already heard loads about Pentium 4's funky 'NetBurst-Architecture', the 'Rapid Execution Engine', the 'Hyper Pipeline, 'SSE2' and even the glorious 'Execution Trace Cache'. However, following a long tradition, I will still dedicate a major amount of time of this article to a detailed explanation of what is really behind Pentium 4 and all its fancy new features. It's the best way to understand the following benchmark results and it should help you making a decision if Pentium 4 is indeed a product for you.

Intel® Dual-Core Technology

Intel® Dual-Core Technology

Designed from the ground up for revolutionary energy-efficient performance, Intel® dual-core processors enable exceptional productivity enhancing features and rich multimedia experiences. As the catalyst for new processor architecture design, Intel dual-core processors have become the standard for our desktop, mobile, and server platforms.