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Virtex is the flagship family of FPGA products developed by Xilinx. Other current product lines include Kintex (mid-range) and Artix (low-cost), each including configurations and models optimized for different applications.〔DSP-FPGA.com. (Xilinx FPGA Products ).” April 2010. Retrieved June 10, 2010.〕 The Spartan low-cost series is being retired.〔EE Times. “(Xilinx to offer three classes of FPGAs at 28-nm ).” June 21, 2010. Retrieved September 23, 2010.〕〔Kevin Morris, FPGA Journal. “(Veni! Vidi! Virtex! (and Kintex and Artix Too) ).” June 21, 2010. Retrieved September 23, 2010.〕 Virtex FPGAs are typically programmed in hardware description languages such as VHDL or Verilog, using the Xilinx ISE or Vivado Design Suite computer software.〔Brian Bailey, EE Times. "(Second generation for FPGA software )." Apr 25, 2012. Retrieved Dec 21, 2012.〕 Xilinx FPGA products have been recognized by EE Times, EDN and others for innovation and market impact.〔EE Times, “(EE Times 2010 ACE Award for Design Innovation ).” April 27, 2010. Retrieved June 17, 2010.〕〔EDN, “(EDN Hot 100 Products of 2007: Digital, Memory and Programmable ICs ).” December 14, 2007. Retrieved June 17, 2010.〕〔EDN, “(The Hot 100 Electronic Products of 2009 ).” December 15, 2009. Retrieved June 15, 2010.〕 ==Architecture== The Virtex series of FPGAs are based on Configurable Logic Blocks (CLBs), where each CLB is equivalent to multiple ASIC gates.〔(Field Programmable Logic and Applications ), Springer Science & Business Media, 21-Aug-2002〕〔(Handbook of Signal Processing Systems - Volume 2 ), Springer Science & Business Media, 20-Jun-2013〕 Each CLB is composed of multiple ''slices'', that differ in construction between Virtex families.〔 Virtex FPGAs include an I/O Block for controlling input/output pins on the Virtex chip, that support a variety of signalling standards.〔(Cryptographic Hardware and Embedded Systems ), Springer Science & Business Media, 02-Sep-2003〕 All pins default to "input" mode (high impedance). I/O pins are grouped into I/O Banks, where each Bank can support a different voltage.〔 In addition to configurable FPGA logic, Virtex FPGAs include fixed-function hardware for multipliers, memories, microprocessor cores, FIFO and ECC logic, DSP blocks, PCI Express controllers, Ethernet MAC blocks, and high-speed serial transceivers.〔Ron Wilson, EDN. "(Xilinx FPGA introductions hint at new realities )." February 2, 2009 Retrieved June 10, 2010.〕〔Design & Reuse. "(New Xilinx Virtex-6 FPGA Family Designed to Satisfy Insatiable Demand for Higher Bandwidth and Lower Power Systems )." February 2, 2009. Retrieved June 10, 2010.〕 Some Virtex family members (such as the Virtex-5QX) are available in radiation-hardened packages, for outer-space applications.〔Don Clark, ''Wall Street Journal''. "(Xilinx Say New Chips Adept at Surviving Space Radiation. )" July 19, 2010. Retrieved August 10, 2010.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Virtex (FPGA)」の詳細全文を読む スポンサード リンク
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