Xilinx FPGAs: A technical overview for the first-time user
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2000-06-27 |
| This application note introduces the reader to the various Xilinx product families' logic components and provides a general overview of what the logic components within the devices are used for. |
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| Data acquisition systems using cache logic FPGAs
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2000-09-01 |
| This application note describes Atmel's enabling Cache Logic technology to make adaptive hardware possible for Data Acquisition, Logic Analyzer, and other instrumentation products. |
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| Status and control semaphore registers using partial reconfiguration
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2000-06-29 |
| This application note demonstrates how to lock the LUT SelectRAM to specific locations, determine the corresponding frame of data in the .RBT (Rawbits) file, modify the LUT memory as desired, and re-write this frame into the chip. |
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| Configuring Xilinx FPGAs with SPI flash memories using CoolRunner-II CPLDs
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2004-12-10 |
| This app note describes a method to configure Xilinx FPGAs, such as Spartan-IIETM and Spartan-3TM FPGAs, using inexpensive small Serial Peripheral Interface (SPI) flash memories. |
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| High-speed FIFOs in Spartan-II FPGAs
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2001-04-12 |
| This application note describes how to build high-speed FIFOs using the Block SelectRAM+ memory in the Spartan-II FPGAs. |
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| 1:7 Deserialization in Spartan-3E FPGAs at speeds up to 666Mbps
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2007-03-12 |
| Spartan-3E devices are used in a wide variety of applications requiring 1:7 deserialization at speeds up to 666Mbps. This application note targets Spartan-3E devices in applications that require 4-bit or 5-bit receive data bus widths and operate at rates up to 666 Mbps per line with a clock at 1/7th the bit rate. This type of interface is commonly used in flat panel displays and automotive applications. |
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| Harmonic Frequency Synthesizer and FSK Modulator
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2000-06-26 |
| This application note discusses a harmonic frequency synthesizer, that uses an accumulator technique to generate frequencies that are evenly spaced harmonics of some minimum frequency, and an FSK modulator, which provides a modification of the harmonic frequency synthesizer and automatically switches between two frequencies in accordance with an NRZ input. |
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| Using the dedicated carry logic in XC4000E
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2000-06-22 |
| This application note describes the operation of the XC4000E dedicated carry logic, the standard configurations provided for its use, and how these are combined into arithmetic functions and counters. |
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| ORCA Series 4 I/O User's Guide
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2002-12-11 |
| This application note outlines a user guide for the I/O operation of the ORCA Series 4 of FPGAs. |
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| Performing nibble and dibit switching with the MT90820 (LDX)
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2002-12-04 |
| This application note illustrates the use of the MT90820 as a dibit or nibble switch. |
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| Estimating the performance of XC4000E adders and counters
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2000-06-22 |
| This application note provides formulas for estimating the performance of various adders and counters, which are easily predicted by the XC4000E dedicated carry logic. |
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| Ripple-carry adders
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2000-09-01 |
| This application note shows how the AT6000 architecture is ideally suited for implementing arithmetic operations, such as parallel adders, via a NAND and an XOR available simultaneously in a single cell. |
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| Multiplexers and barrel shifters in XC3000/XC3100
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2000-06-27 |
| This application note provides guidance for implementing high-performance multiplexers and barrel shifters in XC3000 LCA devices. |
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| Synthesizable 1.6GBps DDR SDRAM controller
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2001-04-12 |
| This application note describes a 100MHz synthesizable reference controller design for a 64-bit DDR SDRAM. |
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| Accelerating loadable counters in XC4000
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2000-06-22 |
| This application note describes a technique for increasing the performance of very compact, high-performance counters, which are provided by the XC4000 dedicated carry logic, using minimum additional logic. |
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