An embedded chip for USB application: From the architecture to implementation
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1999-04-08 |
| The architecture of the embedded USB chip is discussed in this paper. It can be noted that the MMU and the USB memory buffer play an important role in the data transmission and reception. A clear understanding of the memory operation can provide an easier way to develop an effective USB firmware code, as the firmware code is increasingly demanding a faster response to USB transactions and smaller code size |
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The USB: A universal bus architecture
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2000-02-01 |
| USB is a new connectivity standard that enables computer peripherals to be connected to a computer without reconfiguring the system, giving a better perspective to plug-and-play. But, consumers are asking is this technology enough to solve issues such as bandwidth allocation and compliance for more PC-based applications |
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DSP based silicon solution for USB speakers in multimedia PCs
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1999-04-08 |
| The DSP based silicon solution is targeted towards USB peripherals, especially smart speakers, for multimedia PCs. In addition to significantly improving the quality of the PC audio by moving its processing outside the noisy PC box environment. This application note discusses a DSP based solution for USB speakers in multimedia PCs |
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Prevent packet loss in wireless USB
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2008-10-01 |
| Certified wireless USB is an extension of the USB standard that uses the WiMedia common radio platform to communicate over the UWB wireless medium. It poses challenges which are not encountered in wired USB. This article focuses on avoiding deadlocks caused by packet loss |
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Easing design techniques for full-speed USB solutions
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2000-09-27 |
| EZ-USB FX provides the industry's only RAM-based USB peripheral controller architecture. This paper describes the device's features that enable very fast development cycles and field upgradeabilty by means of software download |
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| Reap embedded USB's benefits in appliances
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2007-03-01 |
| Concerns about increased cost and complexity have slowed the initial adoption of the USB bus in the appliance world. The USB bus offers many classes of solutions that can be used alternatively or in combination to achieve much more |
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Choosing discrete transceivers for USB apps
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2006-04-03 |
| In choosing discrete transceivers, designers must fully understand the various aspects of the USB 2.0 environment and its interaction with non-USB components |
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En route to painless portable USB charging
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2010-05-24 |
| Users are fast taking to the USB port as the preferred way for portable device battery charging. But while the port eliminates a separate wall adapter, it has its power limitations |
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USB-based data acquisition devices come of age
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2005-01-17 |
| The widespread adoption of USB has proven useful for many applications, including measurement and automation |
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Smart scope allows USB pre-compliance testing
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2002-09-01 |
| This technical article discusses how "smart oscilloscopes" with built-in measurements features can help ease pre-compliance USB signal testing time |
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USB solutions for the embedded world
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2005-05-02 |
| A well-planned USB implementation simplifies integration efforts for USB into end-products |
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Total USB solution eases interfacing peripherals
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2000-03-20 |
| This paper introduces the EZ-USB, a family of 8-bit microcontrollers optimized for full-speed (12Mbps) USB applications. As the name implies, the architecture is designed for "Ease of Use" and takes care of the majority of the USB protocol in hardware, allowing the designer to focus on developing his application function |
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Designing a USB sub-system on chip
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1999-06-01 |
| This paper examines an easy approach to create a USB sub-system on silicon. Microcontroler based products embed majority of the macro cells needed for USB, such as the 3.3V regulator, USB transceiver, USB software and hardware modules on chip, thus providing easy implementation for the user |
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Issues involved in designing Ethernet over USB
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1999-06-29 |
| This paper focuses on the issues on how communication data can be transmitted from host to USB device via USB bus with software drivers to achieve such work. It also discusses how to combine the LAN and USB design together to complete Ethernet over USB |
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Design OVP circuitry for safe USB charging
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2008-10-01 |
| While the infrastructure for plugging portable devices into the USB for datacom-with-power applications is fairly universal today, using the USB as a power source for direct powering or charging a battery isn't necessarily foolproof. You'll generally need over-voltage protection (OVP) circuitry; here's what to consider in designing your discrete or IC-based circuit |
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Take your pick of USB solutions
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2007-11-01 |
| With a wealth of USB options available, designers are hard-pressed to pick the right one for their applications. Know the basics of USB and all its flavors |
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Close the gap between USB, plug-in DAQs
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2007-01-01 |
| With its widening adoption, closing the performance gap between USB and plug-in DAQ devices has been a priority to give users the flexibility to select different modules to construct test system as well as meet testing needs |
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| Make the most of 8b/10b encoding in USB 3.0 design
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2012-01-19 |
| Here's a guide to implementing 8b/10 bit encoding in a USB 3.0 design including how and when to use commercially-available SuperSpeed PIPE PHYs versus a custom design with general purpose deserializer components to allow direct access, capture and recording |
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Choosing the right approach for Linux-based USB devices
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2003-11-03 |
| This article talks about choosing the right approach for Linux-based USB devices |
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Designing a USB embedded host controller
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2004-02-16 |
| This article has demonstrated the implementation of an embedded USB host using only one additional IC and no third-party software |
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USB 3.0: More than just a speed boost
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2011-04-11 |
| Find out what is new and better with SuperSpeed USB protocols |
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Benefits, dangers of using USB for T&M apps
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2005-12-16 |
| USB data-acquisition modules offer significant advantages for T&M apps. But beware--they also contain dangers |
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Wireless USB: An efficient 2.4GHz net for less
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2004-05-03 |
| This article will examine the key requirements of point-to-multipoint systems, and then provide a design example. |
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Hints on wireless USB via UWB tests
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2008-06-02 |
| The unique ability of UWB signaling to operate at the noise floor enables UWB devices to peacefully co-exist and share spectrum with traditional wireless services. |
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The green challenge of USB charging for mobile phones
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2009-07-21 |
| Here's an analysis of the trade-offs when implementing a safe charging interface using the universal charging solution. |
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Improve high-speed USB in multimedia handsets
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2007-10-01 |
| Multimedia handset system designers faced with multitasking challenges need new architectural options that eliminate baseband processor bottlenecks. |
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Pick the right bus for your apps
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2006-08-01 |
| Engineers should consider key bus attributes such as latency, bandwidth, software support, distance support and availability when determining the appropriate bus for an application. PCIe is particularly well-suited for test and measurement. USB provides widespread availability and easy-to-use plug and play capabilities while LAN is appropriate for distributed applications with modest throughput requirements |
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Charging Li-ion batteries in portable apps (Part 1)
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2010-09-01 |
| USB requirements present several challenges for battery charging |
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Universal serial bus debug tips
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2003-01-16 |
| You can simplify and speed up the development and troubleshooting of USB devices with the tools and techniques you choose and the design decisions you make |
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Charging Li-ion batteries in portable apps (Part 2)
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2010-09-06 |
| With consumer demands for fewer cords to power and connect their devices, many current and future released handheld devices are required to charge from USB sources and AC-wall adapters |
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