WP306 - Introducing the Xilinx Targeted Design Platform: Fulfilling the Programmable Imperative (PDF)
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Targeted design platforms are simpler, smarter, and more strategically viable design platforms that offer customers the optimum in flexibility, accessibility, applicability, and time to market. Was this document helpful? Yes | No
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1.1 |
524 KB |
06/24/2009 |
WP298 - Power Consumption at 40 and 45 nm (PDF)
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At 40 and 45 nm process nodes, power has become the primary factor for FPGA selection. Spartan®-6 and Virtex®-6 FPGAs offer lower power, simpler power systems and PCB complexity, better reliability, and lower system cost. This white paper details how Xilinx designed for this new reality in Spartan-6 (45 nm) and Virtex-6 (40 nm) FPGA families, achieving dramatic power reductions over previous generation devices.
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|
1.0 |
1.59 MB |
04/13/2009 |
WP286 - Continuing Experiments of Atmospheric Neutron Effects on Deep Submicron Integrated Circuits (PDF)
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This white paper updates the results from the 2005 Xilinx Rosetta experiments published in IEEE Transactions on Device and Materials Reliability, clarifies some open issues, and presents additional results for 90 nm and 65 nm technology nodes. Was this document helpful? Yes | No
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1.0.1 |
137 KB |
05/22/2009 |
WP221 - Static Power and the Importance of Realistic Junction Temperature Analysis (PDF)
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Considerable effort has been taken into reducing static
power in the Virtex™-4 FPGAs. To this end, it is important to consider a realistic FPGA operating temperature. Was this document helpful? Yes | No
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1.0 |
424 KB |
03/23/2005 |
WP332 - Meeting DO-254 and ED-80 Guidelines When Using Xilinx FPGAs (PDF)
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This white paper provides a high-level overview of RTCA DO-254 and EUROCAE ED-80 and discusses how Xilinx can assist designers of avionics systems to achieve certification. Was this document helpful? Yes | No
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1.0 |
205 KB |
01/26/2009 |
WP348 - MicroBlaze System Performance Tuning (PDF)
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This White Paper examines ways to add custom hardware to a processor to achieve hardware acceleration without sacrificing performance of the
processor or the bus to which it is attached.
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1.1 |
649 KB |
08/30/2008 |
WP320 - It's Not the Same Old PCB Anymore (PDF)
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This white paper discusses signal analysis requirements and methods for printed circuit board design for Xilinx® FPGAs. Was this document helpful? Yes | No
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1.0 |
54 KB |
03/27/2008 |
WP163 - Synthesis Tool Enhancements for Virtex Architectures (PDF)
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With the advent of platform FPGAs, programmable logic circuits provide an ever-growing set of architectural elements. Days when FPGAs were simply made of LUTs and flip-flops are long gone. Now FPGA fabric is "feature rich" and flexible. Sophisticated synthesis tools are required to further improve performance and logic utilization using these new architecture capabilities. This document presents some critical areas where Xilinx is actively working with synthesis partners to improve quality of results (QoR) while, at the same time, keeping design and verification processes as simple as possible. Was this document helpful? Yes | No
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1.0 |
186 KB |
07/10/2002 |
WP322 - Bit Error Ratio: What Is It? What Does It Mean? (PDF)
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This white paper defines the use and limitations of bit error ratio measurements when analyzing the performance of communications links. Was this document helpful? Yes | No
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1.0 |
56 KB |
03/27/2008 |
WP321 - IBIS Model Usage (PDF)
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This white paper defines IBIS models and describes how to use them to model I/O characteristics for Xilinx® FPGAs. Was this document helpful? Yes | No
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1.0 |
54 KB |
03/27/2008 |
WP323 - Signal Integrity: Tips and Tricks (PDF)
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This white paper describes design techniques that improve signal integrity in Xilinx® FPGAs. Was this document helpful? Yes | No
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1.0 |
159 KB |
03/28/2008 |
WP333 - FIFOs in Virtex-5 FPGAs (PDF)
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This white paper explores solutions for implementing FIFOs in Virtex™-5 FPGAs. Was this document helpful? Yes | No
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1.0 |
50 KB |
03/24/2008 |
WP319 - Jitter: Variations in the Significant Instants of a Clock or Data Signal (PDF)
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This white paper examines the causes of jitter, jitter measurement techniques, and methods of managing jitter in digital systems. Was this document helpful? Yes | No
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1.0 |
112 KB |
03/24/2008 |
WP202 - The Advantages of Migrating from Discrete 7400 Logic Devices to CPLDs (PDF)
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White Paper on the advantages and cost savings of using
Xilinx CPLDs instead of 7400 Discrete Devices. Was this document helpful? Yes | No
|
1.2 |
549 KB |
01/10/2005 |
WP273 - Performance + Time = Memory (Cost Saving with 3-D Design) (PDF)
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Operating logic at a higher rate than the processing rate allows operations to be achieved sequentially. As with a processor, logic is timeshared over multiple clock cycles. Memory holds values not being used on a given clock cycle. The FPGA can be considered to be a three-dimensional volume to be filled. "Performance + Time = Memory" is a strange formula, but when understood, it can often result in significantly lower cost implementations with Xilinx devices. Was this document helpful? Yes | No
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1.0 |
488 KB |
02/01/2008 |
WP122 - Using the CoolRunner XPLA3 Timing Model (PDF)
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1.2 |
103 KB |
05/18/2002 |
WP264 - Using CoolRunner-II CPLDs in Digital Video Applications (PDF)
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An overview of CoolRunner™-II CPLD applications in the Digital Video Applications market. Was this document helpful? Yes | No
|
1.0 |
769 KB |
05/04/2007 |
WP108 - CoolRunner XPLA3 Clocking Options (PDF)
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This document gives a detailed description of the CoolRunner XPLA3 clocking options. Was this document helpful? Yes | No
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1.0 |
58 KB |
09/13/2000 |
WP347 - Using CoolRunner-II CPLDs in Portable Educational Toys (PDF)
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This White Paper shows how the low power CoolRunner™-II CPLD can be used to incorporate new functionality into a portable educational toy quickly, cost effectively, and with very little additional power consumption. Was this document helpful? Yes | No
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1.0 |
163 KB |
04/23/2008 |
WP277 - Expanding Dedicated Multipliers (PDF)
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This white paper describes methods for expanding the natural bit-width capability of dedicated multipliers in a way that will make best use of the
complete FPGA resources. Was this document helpful? Yes | No
|
1.0 |
316 KB |
05/22/2008 |
WP279 - Digitally Removing a DC Offset: DSP Without Mathematics (PDF)
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This white paper examines how to remove the DC content from a digitally sampled waveform using DSP without complicated mathematics. Was this document helpful? Yes | No
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1.0 |
531 KB |
07/18/2008 |
WP350 - Understanding Performance of PCI Express Systems (PDF)
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This white paper explores the factors of PCI Express® technology and how they affect the performance of a system. This document also provides performance results from two systems that use the Xilinx® Endpoint Block Plus Wrapper for PCI Express in the Virtex®-5 FPGA Integrated Endpoint Block for PCI Express designs. Was this document helpful? Yes | No
|
1.1 |
359 KB |
09/04/2008 |
WP271 - Saving Costs with the SRL16E (PDF)
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This white paper provides examples to help your understanding of the capabilities and use of the SRL16E to improve the performance and lower the cost of your designs by as much as an order of magnitude. Was this document helpful? Yes | No
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1.0 |
686 KB |
05/08/2008 |
WP352 - CoolRunner-II CPLDs in Portable Navigation Devices (PDF)
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This white paper discusses the use of CoolRunner™-II CPLDs in portable navigation devices. Was this document helpful? Yes | No
|
1.0 |
112 KB |
07/29/2008 |
WP345 - Slash Your Total Cost by up to 50% with Spartan-3 Generation FPGAs (PDF)
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This White Paper describes how Spartan®-3 FPGAs can reduce total system cost by up to 50% compared to competing FPGAs. Was this document helpful? Yes | No
|
1.0 |
1.12 MB |
05/08/2008 |
WP335 - Creative Uses of Block RAM (PDF)
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This white paper examines alternate uses
of available block RAM in Virtex® and Spartan® FPGAs. Was this document helpful? Yes | No
|
1.0 |
215 KB |
06/04/2008 |
WP110 - Reed-Solomon Solutions with Spartan-II (PDF)
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This paper explains the theory behind Reed-Solomon error correction, and discusses how a variety of practical Reed-Solomon encoding/decoding solutions can be implemented using Xilinx Spartan™-II family FPGAs. Was this document helpful? Yes | No
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1.0 |
147 KB |
02/10/2000 |
WP326 - CoolRunner-II CPLDs in Point of Sale Terminals (PDF)
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This White Paper discusses applications for CoolRunner™-II CPLDs in POS and HPOS terminals. Was this document helpful? Yes | No
|
1.0 |
136 KB |
11/27/2007 |
WP331 - Timing Closure 6.1i (PDF)
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This is a new and improved version of this article that first appeared two years ago. This updated flow includes new techniques, and updates to software flow and tools based on the latest ISE™ software and FPGA architectures. Was this document helpful? Yes | No
|
1.0.2 |
393 KB |
01/18/2008 |
WP134 - Home Networking Using “New Wires“ — IEEE 1394, USB, and Fast Ethernet Technologies (PDF)
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With the proliferation of digital television more and more people around the world are beginning to distribute audio and video signals around their homes. For the home networking purists, Ethernet equipment offers inexpensive and proven products that can be bought at retail in both kit form or a la carte. Ethernet technology can reliably and efficiently network all the Internet appliances (PCs, printers, game consoles, digital televisions, security cameras, and much more) at home. Xilinx solutions enable these evolving technologies in consumer devices today. Was this document helpful? Yes | No
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1.0 |
545 KB |
03/21/2001 |
WP223 - Power vs. Performance: The 90 nm Inflection Point (PDF)
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This white paper discusses performance versus power consumption in 90 nm FPGAs and how the Virtex™-4 family provides the best of both worlds: high performance and low power consumption. Was this document helpful? Yes | No
|
1.2 |
610 KB |
05/19/2006 |
WP162 - Multiprocessor Systems (PDF)
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With the availability of the Virtex-II Pro devices containing more than one PowerPC processor and MicroBlaze and PicoBlaze soft processor cores, it is important to understand the basics of multiprocessor systems. This document provides a background for building true multiprocessor systems. It is by no means a comprehensive discussion on the topic of multiprocessing. For more information see Parallel Computer Architecture by Culler and Singh, with Gupta. Was this document helpful? Yes | No
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1.0 |
250 KB |
04/10/2003 |
WP324 - New High Speed Broadcast Video Connectivity Solution (3G) with Low-cost FPGAs (PDF)
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Using Xilinx Spartan™-3E and Spartan-3A FPGAs, a National Semiconductor PHY, and a Xilinx video processing stack provides a very cost-effective and flexible approach to the challenges of multi-rate broadcast. Was this document helpful? Yes | No
|
1.0 |
618 KB |
11/28/2007 |
WP272 - Get Smart About Reset: Think Local, Not Global (PDF)
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Applying a global reset to your FPGA designs is not a very good idea and should be avoided. This is a controversial issue, so this white paper looks at the reasons why such a design policy should be considered. Was this document helpful? Yes | No
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1.0.1 |
414 KB |
03/07/2008 |
WP284 - Advantages of the Virtex-5 FPGA 6-Input LUT Architecture (PDF)
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The innovative Virtex™-5 architecture, which is based on a real 6-input LUT with dual-LUT capability, provides substantial resource utilization advantages over competing architectures. This white paper details these advantages. Was this document helpful? Yes | No
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1.0 |
138 KB |
12/19/2007 |
WP209 - Virtex Variable-Input LUT Architecture (PDF)
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The variable-input look-up table (LUT) architecture has been a fundamental component of the Xilinx Virtex architecture first introduced in 1998. This unique architecture enables flexible implementation of any function with eight variable inputs, as well as implementation of more complex functions. In addition to being optimized for 4-, 5-, 6-, 7-, and 8-input LUT functions, the architecture is designed to support 32:1 multiplexers and Boolean functions with up to 79 inputs. The Virtex architecture enables users to implement these functions with minimal levels of logic. By collapsing levels of logic, users can achieve superior design performance. This performance leadership is validated by benchmarks that show Virtex with an average 38% performance leadership over alternative programmable logic architectures. Was this document helpful? Yes | No
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1.0 |
89 KB |
01/12/2004 |
WP164 - IBM Licenses Embedded FPGA Cores from Xilinx for Use in SoC ASICs (PDF)
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IBM and Xilinx recently announced a license agreement to develop programmable logic cores for use within the next generation IBM “Cu-08” ASIC product — this is a crucial link in the on-going quest for system-level integration. This collaboration to offer designers high-performance ASIC technology, with state-of-the-art programmable logic, opens a vast potential for new applications and the ultimate in both integration and flexibility. This development expands the growing relationship between these two leading technology companies. Both are ranked #1 in their product markets by Dataquest, where IBM has captured the #1 ASIC supplier ranking for 3 successive years, and Xilinx has similarly held the top FPGA supplier position. Was this document helpful? Yes | No
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1/0 |
43 KB |
06/02/2002 |
WP105 - CoolRunner XPLA3 CPLD Architecture Overview (PDF)
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1.0 |
237 KB |
01/06/2000 |
WP353 - Seven Steps to an Accurate Worst-Case Power Analysis Using Xilinx Power Estimator (PDF)
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This white paper describes the steps necessary to analyze your design's power requirements using the Xilinx® Power Estimator. Was this document helpful? Yes | No
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1.0 |
1.77 MB |
09/30/2008 |
WP208 - Flip-Chip Package Substrate Solder Issue (PDF)
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Alpha particle emission in close proximity to the
device circuitry is minimized by following Xilinx
low alpha solder requirements on package substrate
pads. One flip-chip packaging vendor’s failure to
comply with these requirements has resulted in
contamination by high alpha solder causing possible
soft errors due to flipped device configuration bits.
This white paper provides an overview on soldering
material, describes the specific soldering problem,
and offers some solutions. Was this document helpful? Yes | No
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1.1 |
135 KB |
01/14/2004 |
WP206 - The 40% Performance Advantage of Virtex-II Pro FPGAs Over Competitive PLDs (PDF)
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As programmable logic devices (PLDs) increase in density and complexity, the combination of a feature-rich fabric and sophisticated design tools enables users to realize their performance goals in less time. Shorter design cycle times enable users to lower overall design costs and meet time-to-market requirements. This white paper highlights how the Virtex-II Pro™ FPGA and ISE6 design tool combination provides a 40% performance advantage over the nearest competitor, the Altera Stratix™ PLD. Was this document helpful? Yes | No
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1.2 |
216 KB |
03/01/2004 |
WP175 - High-Speed Serial Interconnects: Technical Advantages, IC, and System Design Strategies (PDF)
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Companies across a wide range of industries are witnessing a transition from parallel to high-speed serial I/O solutions to reduce system costs, simplify system design, and provide scalability to meet new bandwidth requirements. Serial solutions will ultimately be deployed in nearly every type of electronic products imaginable, from chip-to-chip interfacing, backplane connectivity and system boards, to box-to-box communications. This document focuses on the dynamics of this transition in the connectivity solutions market. Was this document helpful? Yes | No
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1.0 |
67 KB |
05/15/2003 |
WP270 - Forward Error Correction in Digital Television Broadcast Systems (PDF)
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This white paper gives an overall view of the various
mainstream digital television standards and outlines
related Forward Error Correction solutions available
from Xilinx for cable, satellite, terrestrial, and mobile
systems. Was this document helpful? Yes | No
|
1.0.1 |
920 KB |
04/21/2008 |
WP150 - Solving the Challenges for Terabit Networking and Beyond (PDF)
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In today's world of modular networking and telecommunications design, it is becoming increasingly difficult to keep alignment with the many different and often changing interfaces, both inter-board and intra-board. Each manufacturer has their own spin on the way in which devices are connected. To satisfy the needs of our customers, we must be able to support all their interface requirements. For us to be able to make products for many customers, we must adopt a modular approach to the design. This modularity is the one issue that drives the major problem of shifting our bits from one modular interface to another. Was this document helpful? Yes | No
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1.0 |
113 KB |
07/20/2001 |
WP257 - What Are PERIOD Constraints? (PDF)
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A fundamental timing constraint is the PERIOD
constraint. This paper discusses the overall purpose of
PERIOD constraints and the specific paths that are
covered by PERIOD constraints. Additionally, examples
of timing reports are included with the common
application of the PERIOD constraints. Was this document helpful? Yes | No
|
1.0 |
343 KB |
03/21/2007 |
WP195 - Creating and Editing XPower XML Files (PDF)
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As device sizes increase and operating frequencies rise, power consumption and thermal management become critical. The XPower tool from Xilinx allows users to perform the following tasks: Estimate a design’s power usage. Save settings in an XML file. Edit the XML file outside of XPower in a text editor. Open the XML file and its edited settings in XPower. Was this document helpful? Yes | No
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1.1 |
153 KB |
05/19/2003 |
WP194 - Telematics Digital Convergence:How to Cope with Emerging Standards and Protocols (PDF)
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This paper first describes and positions various emerging in-vehicle standards and their respective strengths and weaknesses. It then explores the designer's dilemma: how to build flexible and scalable system architectures which will allow the time in market of telematics platforms match that of the host vehicle while still communicating internally and to other external systems. It then goes on to discuss enabling technologies and how to implement reconfigurable and upgradeable telematics platforms that can be designed for protocols today and in the future. Was this document helpful? Yes | No
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1.0 |
304 KB |
05/27/2003 |
WP245 - Achieving Higher System Performance with the Virtex-5 Family of FPGAs (PDF)
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This document shows the level of performance that can be reached with Virtex™-5 family building blocks, with particular emphasis on the new ExpressFabric™ technology. The main features of this new technology, including the new 6-input LUT, are described. Was this document helpful? Yes | No
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1.1.1 |
285 KB |
07/07/2006 |
WP213 - Comparing and Contrasting FPGA and Microprocessor System Design and Development (PDF)
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This white paper compares and contrasts FPGA and microprocessor system design and development flows with the aim of helping the designer and definer of state-of-the-art electronics systems to make a considered and well informed architecture decision. Was this document helpful? Yes | No
|
1.1 |
441 KB |
07/21/2004 |
WP137 - Intellectual Property (IP) Cores for Home Networking (PDF)
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Spartan™-II FPGAs, programmed with IP cores, enable home networking products. Xilinx develops IP cores and partners with third-party IP providers to provide customers with a suite of cores to decrease the customer's time-to-market. While reprogrammability reduces the customer's time-to-market and enables flexibility, the Xilinx Online™ program allows time-in-market as specifications in emerging technologies keep evolving. Was this document helpful? Yes | No
|
1.1 |
85 KB |
03/14/2005 |
WP266 - Security Solutions Using Spartan-3 Generation FPGAs (PDF)
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This white paper identifies the top design security threats, explores the basic levels of security, and describes how new, low-cost Spartan®-3A, Spartan-3AN, and Spartan-3A DSP FPGAs from Xilinx can help protect your products and profits. Was this document helpful? Yes | No
|
1.1 |
256 KB |
04/22/2008 |
WP212 - DSP Co-Processing in FPGAs: Embedding High-Performance, Low-Cost DSP Functions (PDF)
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FPGAs have been used in DSP applications for years; more recently FPGAs have been emerging as ideal co-processors for standard DSP devices. FPGAs provide tremendous computational throughput by using highly parallel architectures, and are hardware reconfigurable, allowing the designer to develop customized architectures for ideal implementation of their algorithms. The new generation of FPGAs developed using 90-nm process technology provide the designer with an even more cost-effective solution. This white paper takes a look at some common high-performance DSP functions and calculates their effective implementation costs. Was this document helpful? Yes | No
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1.0 |
131 KB |
03/18/2004 |
WP231 - HDL Coding Practices to Accelerate Design Performance (PDF)
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This document focuses on creating HDL code that maps efficiently onto the targeted device. The paper presents coding styles and tips to accelerate design performance. Proper FPGA coding practices are reiterated, and the lesser known techniques directly applicable to the latest Xilinx FPGA architectures are presented. Was this document helpful? Yes | No
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1.1 |
419 KB |
01/06/2006 |
WP260 - Memory Interfaces Made Easy with Xilinx FPGAs and the Memory Interface Generator (PDF)
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This white paper discusses the various memory interface controller design challenges and Xilinx solutions, including how to use the Xilinx software tools and hardware-verified reference designs to build a complete memory interface solution for your own application, from low-cost DDR SDRAM applications to higher-performance interfaces like the 667Mb/s DDR2 SDRAMs. Was this document helpful? Yes | No
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1.0 |
712 KB |
02/16/2007 |
WP244 - Traffic Management in Xilinx FPGAs (PDF)
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A carefully designed Traffic Manager
solution can be scaled and tailored to exactly match
the needs of the customer in terms of logic; the
customer only pays for the silicon needed. Hence,
FPGAs provide the most cost-effective and high-performance
solution in this market. Xilinx FPGAs provide the best
solution. Was this document helpful? Yes | No
|
1.0 |
540 KB |
04/10/2006 |
WP241 - Using MATLAB to Create IP for System Generator for DSP (PDF)
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Custom DSP algorithms are best modeled mathematically using MATLAB®, while complete systems are best modeled cycle-accurately using Simulink. The marriage of these two modeling domains provides an efficient means to design DSP systems into FPGAs. Was this document helpful? Yes | No
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1.0 |
163 KB |
04/19/2006 |
WP239 - AccelDSP Synthesis Tool Floating-Point to Fixed-Point Conversion of MATLAB Algorithms (PDF)
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The AccelDSP Synthesis Tool offers great benefits in automation, acceleration, and visualization when converting algorithms into a fixed-point model for implementation on an FPGAs. Was this document helpful? Yes | No
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1.0 |
377 KB |
04/19/2006 |
WP250 - The Differences Between DataGATE and "Sleep Modes" (PDF)
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This White Paper discusses the advantages of using DataGATE (input gating) over sleep modes. Was this document helpful? Yes | No
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1.0 |
67 KB |
10/31/2006 |
WP247 - Virtex-5 Family Advanced Packaging (PDF)
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This white paper discusses some of the advantages made available to the application design engineer by the Virtex™-5 family’s advanced approach to FPGA packaging. Was this document helpful? Yes | No
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1.0 |
558 KB |
05/12/2006 |
WP243 - M2C-Accelerator Facilitates Model-Based Design (PDF)
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The M2C-Accelerator extends the Xilinx AccelDSP™ Model-Based Design solution by converting floating-point MATLAB to fixed-point C++ for accelerated MBD verification eliminating a potential bottleneck. Was this document helpful? Yes | No
|
1.0 |
92 KB |
04/19/2006 |
WP242 - AccelDSP IP Explorer (PDF)
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AccelDSP™ Synthesis Tool with IP-Explorer technology eliminates the trial-and-error from using IP blocks by allowing the tool automatically to select from various macro-architectures. Was this document helpful? Yes | No
|
1.0 |
412 KB |
04/19/2006 |
WP230 - Physical Synthesis and Optimization with ISE 9.1i (PDF)
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The Physical Synthesis and Optimization tools in the Xilinx ISE software have been created to reexamine the structure of your FPGA design during the packing and placement phases of implementation. Was this document helpful? Yes | No
|
1.1 |
223 KB |
05/16/2007 |
WP196 - Xilinx Devices in Flat Panel Displays (PDF)
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This white paper discusses the FPD market and looks in closer detail at Plasma Display Panels and Liquid Crystal Displays in particular. An overview of where Xilinx devices fit in digital video systems is followed by a market overview of the flat panel display industry. The value proposition for Xilinx devices is presented, followed by a detailed discussion of the relationship of product features and resources to FPD system requirements. Was this document helpful? Yes | No
|
1.0 |
248 KB |
07/24/2003 |
WP190 - System Clock Management Simplified with Virtex-II Pro FPGAs (PDF)
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Virtex-II Pro FPGAs provide Digital Clock Management circuitry to handle all clock management requirements at the device, board, and system level resulting in simplified designs and reduced costs. Was this document helpful? Yes | No
|
1.0 |
440 KB |
02/25/2003 |
WP174 - Methodologies for Efficient FPGA Integration into PCBs (PDF)
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Describes how PCB design considerations play a major role in obtaining the expected performance from FPGAs. Focuses on early analysis and simulation methodologies as a way of performing a guided implementation. If design variables are analyzed and results passed to implementation, it is more likely the desired specifications will be met in the first pass, fulfilling the ultimate goal to keep development effort, cost, and time to a minimum. Was this document helpful? Yes | No
|
1.0 |
1.09 MB |
03/13/2003 |
WP169 - Could Automotive Processor Obsolescence be History? (PDF)
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Obsolescence is a concern of most design engineers and none more so than with automotive telematics equipment designers. Even though automotive electronics equipment design and development time scales have shrunk recently from 5 to 2 years, the products themselves will still need to be produced for many years and be active in the field or even longer. Was this document helpful? Yes | No
|
1.0 |
130 KB |
10/10/2002 |
WP153 - Reconfigurable Vehicles (PDF)
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Focuses on how Xilinx enables the automobile to be a more entertaining, more informative, and more productive environment. When we envisage automotive electronics we automatically consider electric windows, central locking systems, safety systems, climate control and electronic ignition systems, all of which require stringent qualification, temperature cycling, and certification. The new emerging automotive electronics boon has now shifted from under the hood or bonnet to in-cabin multimedia applications. The trend towards mobile offices and entertainment on the move has meant a large portion of the electronic or semiconductor content has moved into this expanding area. Was this document helpful? Yes | No
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1.0 |
1.01 MB |
11/19/2001 |
WP200 - Using Spartan-3 FPGAs As Low-Cost Controllers for Remote Digital Cameras (PDF)
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The introduction of Spartan-3™ devices has created multiple changes in the evolution of embedded control designs and pushed processing capabilities to the “almost-free stage.” With these new FPGAs falling under $20, in volume, with over 1 million system gates, and under $5 for 100K gate-level units, any design with programmable logic has a readily available 8- or 16-bit processor costing less than 75 cents and 32-bit processor for less than $1.50.
This white paper explores the benefits, system requirements, cost, design process, software and hardware architecture, and expansion strategy, along with many details of these systems. Was this document helpful? Yes | No
|
1.1 |
245 KB |
11/14/2003 |
WP198 - CoolRunner-II CPLDs in Cell Phone Handsets/Terminals (PDF)
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Cell phone handsets (or “terminals,” as they’re called in Europe) are among the most dynamic products in the electronics market today. From their original analog roots, they have evolved into nearly pure digital devices with as much functionality as complex PDAs. Consumers who once evaluated handsets based on their ability to make high-quality local calls now take call clarity as a given. Their choices instead rest on characteristics ranging from a handset’s "skin" color to its ability to support streaming video. Buyers, even those shopping for low-cost handsets, increasingly demand these kinds of features: "extras" are well on their way to becoming standards. This shift puts manufacturers in a bind as they try to balance low cost with the ever-increasing consumer insistence on new features. Should customers pay for these features outright, or should their monthly payments subsidize the handset cost? Was this document helpful? Yes | No
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1.0 |
84 KB |
06/30/2003 |
WP172 - Spartan-IIE FPGAs Lower I/O Cost (PDF)
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Shows how the Spartan-IIE family addresses the needs for lower cost and an increased number of I/Os. The Spartan-IIE family has been specifically designed for consumer designs with a heavy focus on total system cost, delivering the most I/O for the money. Additionally, the Spartan-IIE family offers a hassle free density migration path and a highly efficient I/O banking scheme, with substantial I/O standards to further reduce system cost. Was this document helpful? Yes | No
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1.0 |
47 KB |
01/15/2003 |
WP227 - The Real Value of CoolRunner-II DataGATE (PDF)
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This document demonstates the dramatic power savings that are obtained using the DataGATE feature. Was this document helpful? Yes | No
|
1.1 |
130 KB |
06/29/2005 |
WP328 - FPGAs Driving Voice-Data Convergence (PDF)
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This TechXclusive article gives an overview of voice data convergence technologies, the benefits to the users and some of the significant challenges facing the designers of these systems. Was this document helpful? Yes | No
|
1.0.1 |
170 KB |
11/21/2007 |
WP160 - Emulating External SERDES Devices with Embedded Rocket I/O Transceivers (PDF)
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The Virtex-II Pro™ Platform FPGA provides an attractive single-chip solution to serial transceiver design problems that previously required multiple devices. This white paper describes several different dedicated external SERDES devices, and presents alternative design solutions using the Virtex-II Pro Platform FPGA with RocketIO™ transceivers. Was this document helpful? Yes | No
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1.2 |
268 KB |
07/27/2004 |
WP275 - Get your Priorities Right – Make your Design Up to 50% Smaller (PDF)
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This white paper describes a rarely noticed design technique that can make a difference in the size and the performance of your FPGA design. Control signals on FPGA flip-flops have a built-in priority. If you can learn to write code that is sympathetic to the priorities, the results will be rewarding. This white paper provides some simple VHDL and Verilog examples to explain key points. Was this document helpful? Yes | No
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1.0.1 |
239 KB |
10/22/2007 |
WP118 - Using CoolRunner CPLDs in Smart Card Reader Applications (PDF)
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This document presents the different types of smart cards and their applications and discusses the variety of smart card readers available and what functions they can perform. An illustration of the elements that form a typical smart card reader and how and where CoolRunner devices can be used to undertake some of these tasks is described herein. Was this document helpful? Yes | No
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1.0 |
221 KB |
05/18/2000 |
WP253 - Simplifying the FPGA Configuration Design Process (PDF)
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This paper focuses on how Xilinx Platform Flash PROMs simplify FPGA configuration design for system and board designers. Was this document helpful? Yes | No
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1.0.1 |
82 KB |
08/07/2006 |
WP226 - Spartan-3 vs. Cyclone II Performance Analysis (PDF)
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Spartan™-3 design performance is now slightly faster than Cyclone II when comparing the most cost effective speed grade in each device. Was this document helpful? Yes | No
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1.0 |
115 KB |
05/24/2005 |
WP224 - Negative-Bias Temperature Instability (NBTI) Effects in 90 nm PMOS (PDF)
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Describes Negative-Bias Temperature
Instability (NTBI), an unwanted transistor behavior
that is pervasive in all deep sub-micron designs. Was this document helpful? Yes | No
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1.1 |
88 KB |
11/21/2005 |
WP218 - Achieving Breakthrough Performance in Virtex-4 FPGAs (PDF)
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This paper shows the level of performance that can be reached using Virtex™-4 FPGAs. Was this document helpful? Yes | No
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1.4 |
100 KB |
05/19/2006 |
WP214 - TTL "Burn Rate" for Xilinx CPLDs (PDF)
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This White Paper shows a method for calculating how much TTL logic can be fit on a Xilinx CPLD. Was this document helpful? Yes | No
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1.0 |
1.35 MB |
01/10/2005 |
WP229 - Synthesis and Implementation Strategies to Accelerate Design Performance (PDF)
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This paper describes the synthesis and implementation tools strategies, such as Xplorer™, that can be employed to maximize design performance in actual designs with a detailed user constraints file (UCF) or benchmark designs where the user is evaluating the best achievable performance for a specified clock domain. Was this document helpful? Yes | No
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1.0 |
188 KB |
07/06/2005 |
WP197 - CipherStream Protocol: How CoolRunner-II CPLDs Protect FPGA IP (PDF)
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It doesn’t usually take very long to create an FPGA design. Recently, however, a Xilinx competitor ran an ad declaring that while an FPGA can take up to a year to design, it can be cloned in only a second. Are FPGA designs really that insecure? While the ad seems absurdly hyperbolic, it is true that the bitstreams of some volatile FPGAs can be cloned. While it’s unlikely that cloning could happen in "a second," fears about the insecurity of design efforts are valid ones. To alleviate these anxieties, this white paper will show you how to substantially secure the bitstream and the overall design of FPGAs using Xilinx CoolRunner™-II CPLDs. Was this document helpful? Yes | No
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1.0 |
109 KB |
06/30/2003 |
WP329 - Relationally Placed Macros (PDF)
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The Xilinx Implementation Tools offer designers the
flexibility and control over their design to enable quick
time to market and increased clock speed. One feature of
the software is Relationally Placed Macros (RPMs).
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1.0.1 |
110 KB |
01/11/2008 |
WP267 - Advanced Security Schemes for Spartan-3A/3AN/3A DSP FPGAs (PDF)
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This white paper identifies the top design security threats, explores the advanced security options, and describes how new, low-cost Spartan™-3A, Spartan-3AN, and Spartan-3A DSP FPGAs from Xilinx can help protect your products and profits. Was this document helpful? Yes | No
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1.0 |
169 KB |
08/15/2007 |
WP258 - Considerations for Heatsink Selection - Xilinx Thermal Data Application (PDF)
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This white paper reviews the potential inaccuracies associated with the traditional one-resistor approach to selecting heatsinks, and suggests a more accurate two-resistor (2-R) approach based on both theta-jc and theta-jb from the device datasheet. Was this document helpful? Yes | No
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1.0 |
135 KB |
02/08/2007 |
WP274 - Multiplexer Selection (PDF)
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This white paper considers a variety of ways in which multiplexers
can be implemented within Xilinx FPGA devices, including some alternative techniques that can lead to more efficient and lower cost implementations. Was this document helpful? Yes | No
|
1.0 |
584 KB |
02/04/2008 |
WP210 - Programmable Logic Solutions for Next Generation Serial Backplanes (PDF)
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Today's data rates, exceeding 622 Mbps and reaching the 1 to 3.125 Gbps range across 20 inches or more of backplane trace, have made it challenging to pass data reliably over parallel buses. As a result, designers are now forced to shift from the use of parallel buses to utilizing more advanced serial interconnects; however, even serial technologies have limitations, especially at data rates beyond the 1 Gbps level, where new problems arise. This white paper presents methods of addressing these issues with programmable logic solutions for next generation serial backplanes. Was this document helpful? Yes | No
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1.0 |
152 KB |
02/17/2004 |
WP285 - Virtex-5 FPGA System Power Design Considerations (PDF)
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This white paper offers design tips on changes that can be made to the FPGA environment, features, and tool options to optimize the system design power consumption, thus reducing thermal and power component cost as well as increasing overall system reliability. Was this document helpful? Yes | No
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1.0 |
1.42 MB |
02/14/2008 |
WP262 - Designing Multiprocessor Systems in Platform Studio (PDF)
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This white paper discusses chip multiprocessing designs using the Xilinx Platform Studio Was this document helpful? Yes | No
|
2.0 |
471 KB |
11/20/2007 |
WP246 - Power Consumption in 65 nm FPGAs (PDF)
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1.2 |
290 KB |
02/01/2007 |
WP237 - What are OFFSET Constraints? (PDF)
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This paper discusses the overall purpose of OFFSET constraints, the specific paths that are covered by OFFSET constraints, and the differences between the OFFSET IN and OFFSET OUT constraints. Was this document helpful? Yes | No
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1.0 |
398 KB |
02/27/2006 |
WP233 - IEEE 802.17, Resilient Packet Ring Networks Enabled by FPGAs (PDF)
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Describes RPR as a network, explains how the MAC operates to provide required network functionality, gives a high-level view of the Virtex™-4 implementation of the MAC, including device sizing, and covers a few system design use cases. Was this document helpful? Yes | No
|
1.0 |
525 KB |
10/19/2005 |
WP217 - Estimating Actual Output Timing Without Board Simulation (PDF)
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This document can help designers obtain more accurate I/O timing data without the need for board-level IBIS or SPICE simulations. Until recently, Xilinx specified outputs into a lumped capacitive load. However, since rise and fall times force board interconnect to be considered transmission lines, a lumped capacitive load is no longer relevant (see the TechXclusives document on this for more detail). Was this document helpful? Yes | No
|
1.0 |
271 KB |
12/23/2004 |
WP161 - Comparing Virtex-II and Stratix Logic Utilization (PDF)
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New programmable logic circuits provide an evergrowing set of architectural elements. Advanced FPGAs are not solely made of look-up tables and flip-flops anymore, and today's logic fabrics are best described as “feature rich.” This trend requires sophisticated algorithms in both synthesis and implementation tools to provide optimal performance and logic utilization by leveraging these new hardware features. This document highlights how the Xilinx Virtex-II family provides 25% better logic utilization compared to Altera’s Stratix device family as a result of fabric features and advanced software algorithms. Was this document helpful? Yes | No
|
1.0 |
99 KB |
06/06/2002 |
WP151 - System ACE Configuration Solutions for Xilinx FPGAs (PDF)
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The System ACE™ (Advanced Configuration Environment) CompactFlash configuration solution is designed to meet the growing need for flexible, high-density storage and configuration control. Was this document helpful? Yes | No
|
3.0.1 |
247 KB |
12/17/2007 |
WP156 - High-Speed Transceiver Logic (PDF)
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HSTL is a technology-independent interface standard for digital integrated circuits. It is a JEDEC standard developed for voltage scalable and technology independent I/O structures. The I/O structures required by this standard are differential amplifier inputs (with one input internally tied to a user-supplied input reference voltage, VREF for single-ended inputs) and outputs using output power supply inputs (VCCO) that may differ from those operating the device itself. Was this document helpful? Yes | No
|
1.0 |
35 KB |
01/02/2002 |
WP155 - Triple DES Encryption in Selected Virtex-II Devices (PDF)
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This white paper describes Triple DES Encryption for certain Virtex-II devices. Review the white paper for more details. Was this document helpful? Yes | No
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1.0 |
62 KB |
04/22/2002 |
WP276 - Programmable Development and Test (PDF)
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FPGAs can be configured with test applications during the development and production test stage. This white paper explores efficient options to help in product development and accelerate testing on the production line. Was this document helpful? Yes | No
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1.0.1 |
318 KB |
03/07/2008 |
WP283 Using System Generator for Systematic HDL Deisng, Verification, and Validation (PDF)
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Using SystemGenerator, users can functionally simulate a design and use the MATLAB® environment to verify the bit/cycle-tru model against the golden reference results, produced either externally or inside the MATLAB environemnt. Was this document helpful? Yes | No
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1.0 |
1.2 MB |
01/17/2008 |
WP135 - Wireless Home Networks — DECT, Bluetooth, HomeRF, and Wireless LANs (PDF)
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A wireless home network is an intriguing alternative to phoneline and powerline wiring systems. Wireless home networks provide all the functionality of wireline networks without the physical constraints of the wire itself. They generally revolve around either IR or radio transmissions within your home. Radio transmissions comprise of two distinct technologies—narrowband and spread-spectrum radio. Most wireless home networking products are based upon the spread-spectrum technologies. To date, the high cost and impracticality of adding new wires have inhibited the wide spread adoption of home networking technologies. Wired technologies also do not allow users to roam about with portable devices. In addition, multiple, incompatible communication standards have limited acceptance of wireless networks in the home. Was this document helpful? Yes | No
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1.0 |
537 KB |
03/21/2001 |
WP192 - SMT Package Rework (PDF)
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Surface Mount Technology (SMT) packages include the leaded family packages (Quad Flat Pack (QFP) and Plastic Leaded Chip Carrier (PLCC)) and the Ball Grid Array (BGA) packages. SMT rework can be necessary for any of the following reasons: assembly related defects, such as shorts, opens, wrong orientation, and solder ball defects; device/package related defects/failure analysis; and engineering change or system upgrade. Was this document helpful? Yes | No
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1.0 |
42 KB |
05/12/2003 |
WP127 - Embedded System Design Considerations (PDF)
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Embedded systems see a steadily increasing bandwidth mismatch between raw processor MIPS and surrounding components. System performance is not solely dependent upon processor capability. While a processor with a higher MIPS specification can provide incremental system performance improvement, eventually the lagging surrounding components become a system performance bottleneck. This white paper examines some of the factors contributing to this. Was this document helpful? Yes | No
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1.0 |
138 KB |
02/26/2002 |
WP157 - Usage Models for Multi-Gigabit Serial Transceivers (PDF)
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This document provides an overview of the various usage models for high-speed, point-to-point, serial transceiver technology. While not intending to represent all the applications of this technology, it provides a basic categorization and description of some of the most common uses. Was this document helpful? Yes | No
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1.0 |
580 KB |
03/15/2002 |
WP240 - AccelDSP Synthesis Tool Supported MATLAB Constructs and Functions (PDF)
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This document provides a concise overview of the subset of the MATLAB language, including operators, as well as built-in and toolbox functions supported by AccelDSP™ Synthesis Tool for algorithmic synthesis targeting Xilinx FPGAs. Was this document helpful? Yes | No
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1.1 |
75 KB |
12/08/2006 |
WP167 - Field Programmable Controllers for Cost Sensitive Applications (PDF)
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The Xilinx Field Programmable Controller (FPC) solution allows you to create low-cost, customized processors with peripherals, memory, and logic — all on a single cost-optimized Spartan™-IIE FPGA. The FPC solution is ideal for applications in which cost and integration within a system is critical. With the flexibility to allow integration of other IP on the FPGA fabric, the Spartan-IIE family presents an ideal embedded solution. This white paper presents the end markets, FPC solution, and its associated tools, end applications, and the Spartan-IIE performance advantage. Was this document helpful? Yes | No
|
1.0 |
399 KB |
12/10/2002 |
WP248 - Retargeting Guidelines for Virtex-5 FPGAs (PDF)
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When migrating or retargeting code from a previous design into a Virtex™-5 platform FPGA, some considerations should be addressed. This whitepaper identifies and details appropriate retargeting guidelines. Was this document helpful? Yes | No
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1.0 |
114 KB |
07/31/2007 |
WP228 - Using Non-standard Voltages with CoolRunner-II CPLDs (PDF)
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This White Paper describes CoolRunner™-II characteristics when powered by non-standard I/O voltages. Was this document helpful? Yes | No
|
1.1 |
143 KB |
04/13/2007 |
WP115 - Data Encryption using DES/Triple-DES Functionality in Spartan-II (PDF)
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Today's connected society requires secure data encryption devices to preserve data privacy and authentication in critical applications. There is an immense value in integrating critical IP solutions like Discrete Cosine Transform/Inverse DCT (DCT/IDCT) and DES within a Xilinx Spartan-II FPGA to enhance performance and security in communication applications. Was this document helpful? Yes | No
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1.0 |
331 KB |
03/09/2000 |
WP280 - Using FPGA Technology to Solve the Challenges of Implementing High-End Networking Equipment: Adding a 100 GbE MAC to Existing Telecom Equipment (PDF)
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This white paper examines the industry's urgent need for higher rate interfaces (particularly 100 GbE), the important risks and concerns that a system architect has when adding 100 GbE to a platform, and several implementation options that show how FPGAs are uniquely positioned to handle these challenges. Was this document helpful? Yes | No
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1.0 |
152 KB |
09/23/2008 |
WP152 - Xilinx FPGA Configuration Data Compression and Decompression (PDF)
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This document provides a brief description of the Xilinx bitstream compression algorithm based on the LZ77 scheme. FPGA configuration files can be compressed by Xilinx-developed software to reduce memory storage requirements. Compressed configuration files can be stored in a high-density System ACE MPM FPGA configuration controller. The System ACE MPM controller decompresses the files and shifts the original configuration data to the target FPGAs. Was this document helpful? Yes | No
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1.0 |
32 KB |
09/25/2001 |
WP330 - Infinite Impulse Response Filter Structures in Xilinx FPGAs (PDF)
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This white paper covers the different kinds of IIR filters and structures, and, with the use of The MathWorks® tools, shows how these structures can be mapped to the Xilinx® FPGA architecture. Was this document helpful? Yes | No
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1.2 |
435 KB |
08/10/2009 |
WP315 - I/O Design Flexibility with the FPGA Mezzanine Card (FMC) (PDF)
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The FPGA Mezzanine Card (FMC) standard, developed by a consortium of companies ranging from FPGA vendors to end users, specifically targets FPGAs, increasing I/O flexibility and lowering costs in a broad range of applications. Was this document helpful? Yes | No
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1.0 |
1.57 MB |
08/19/2009 |
WP287 - Timing Closure Exploration Tools with SmartXplorer and PlanAhead Tools (PDF)
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This white paper describes how SmartXplorer and PlanAhead™ tools can help to achieve timing closure in the shortest amount of time by applying different design strategies and running them in parallel on different machines across a network. Was this document helpful? Yes | No
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1.0 |
393 KB |
08/26/2009 |
WP310 - Addressing the Performance Bottleneck in Modern SoC Design – Serial I/O Connectivity (PDF)
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FPGAs enabled with serial I/O offer the ideal balance of bandwidth, density, performance, flexibility, and cost for SoC designs. Xilinx offers a portfolio of serial I/O technology that addresses the full spectrum of bandwidth requirements for products ranging from commercial video displays to broadcast video ultra-high bandwidth wired telecommunications systems. Was this document helpful? Yes | No
|
1.0 |
1.75 MB |
09/15/2009 |
WP249 - SPI-4.2 Dynamic Phase Alignment (PDF)
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This document explains the operation of the SPI-4.2 Dynamic Phase Alignment (DPA) Sink Core for Virtex®-4, Virtex-5, and Virtex-6 FPGAs and provides the guidelines on how to use the SPI-4.2 DPA solution. Was this document helpful? Yes | No
|
1.2 |
297 KB |
10/01/2009 |
WP309 - Targeting and Retargeting Guide for Spartan-6 FPGAs (PDF)
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This white paper discusses targeting guidelines and other considerations needed to achieve optimal designs with Spartan®-6 devices. Was this document helpful? Yes | No
|
1.0 |
655 KB |
10/07/2009 |
WP356 - EasyPath-6 Technology: Fast, Simple, Risk-Free FPGA Cost Reduction (PDF)
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EasyPath®-6 FPGAs are the industry's only design-specific FPGA solution to offer seamless cost reduction for complex platform FPGA designs. Unlike traditional approaches that require design conversion to structured ASICs or standard-cell ASICs, the EasyPath-6 technology cost reduction is automatic, immediate, and entirely risk-free. Was this document helpful? Yes | No
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1.0 |
177 KB |
11/16/2009 |