field-programmable gate array

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field-programmable gate array

[¦fēld prō‚gram·ə·bəl ′gāt ə‚rā]
A gate-array device that can be configured and reconfigured by the system manufacturer and sometimes by the end user of the system.

field-programmable gate array

(FPGA) A gate array where the logic network can be programmed into the device after its manufacture. An FPGA consists of an array of logic elements, either gates or lookup table RAMs, flip-flops and programmable interconnect wiring.

Most FPGAs are reprogrammable, since their logic functions and interconnect are defined by RAM cells. The Xilinx LCA, Altera FLEX and AT&T ORCA devices are examples. Others can only be programmed once, by closing "antifuses". These retain their programming permanently. The Actel FPGAs are the leading example of such devices. Atmel FPGAs are currently (July 1997) the only ones in which part of the array can be reprogrammed while other parts are active.

As of 1994, FPGAs have logic capacity up to 10K to 20K 2-input-NAND-equivalent gates, up to about 200 I/O pins and can run at clock rates of 50 MHz or more. FPGA designs must be prepared using CAD software tools, usually provided by the chip vendor, to do technology mapping, partitioning and placement, routing, and binary output. The resulting binary can be programmed into a ROM connected to the FPGA or downloaded to the FPGA from a connected computer.

In addition to ordinary logic applications, FPGAs have enabled the development of logic emulators. There is also research on using FPGAs as computing devices, taking direct advantage of their reconfigurability into problem-specific hardware processors.

Usenet newsgroup: news:comp.arch.fpga.
References in periodicals archive ?
TechNavio's report, the Global Field-Programmable Gate Array Market 2011-2015, has been prepared based on an in-depth analysis of the market with inputs from industry experts.
Actel Corporation is a supplier of innovative programmable logic solutions, including field-programmable gate arrays (FPGAs) based on antifuse and flash technologies, high-performance intellectual property (IP) cores, software development tools and design services, targeted for the high-speed communications, application-specific integrated circuit (ASIC) replacement and radiation-tolerant markets.
The analog equivalent of a field-programmable gate array (FPGA), Anadigm FPAAs allow designers to implement analog signal processing functions in a CMOS-based silicon chip that cost-effectively replaces discretes or ASICs.
Lucent Technologies (NYSE: LU) Microelectronics Group, the world leader in communications semiconductors, today announced two new integrated circuits (ICs) in its line of field-programmable system chips (FPSCs) - devices that combine field-programmable gate arrays (FPGAs) with standard-cell logic on the same chip to provide design flexibility and high performance.
18, 1998--Lucent Technologies' Microelectronics Group today announced availability of two new ATM software cores for its ORCA(r) field-programmable gate arrays (FPGAs) and updates to three other ATM and PCI cores that the company introduced last year.
In the Cray XD1 system architecture, optional field-programmable gate arrays (FPGAs) act as high-speed co-processors that can accelerate critical calculations as much as 30 to 100 times, resulting in significant decreases in the time required to run applications.
1 design suite supports Actel's field-programmable gate arrays (FPGAs).
Actel will integrate ModelSim into Libero, the company's next-generation integrated design environment introduced on June 18, allowing customers to easily access the simulation tool when developing and designing field-programmable gate arrays (FPGAs).
OrCAD's solutions target electronics systems companies, specifically for the design of field-programmable gate arrays (FPGAs), complex programmable logic devices (CPLDs), analog and mixed analog-digital circuits, and printed circuit boards (PCBs).
With OrCAD Express, engineers can design board-level systems with field-programmable gate arrays (FPGAs) and complex programmable logic devices (CPLDs) from OrCAD Solution Partners Xilinx, Altera, Lattice Semiconductor, Actel, and Vantis.
EPAC technology provides the users of analog and mixed-signal circuits access to an analog counterpart of digital field-programmable gate arrays (FPGA).

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