vgud_actel.pdf - Examples of FPLD Families Actel ACT Xilinx...

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Examples of FPLD Families: Actel ACT, Xilinx LCA, Altera MAX 5000 & 7000 1 Actel ACT Family The Actel ACT family employs multiplexer-based logic cells. A row-based architecture is used in which the logic cells are arranged in rows with horizontal routing channels between adjacent rows of logic cells. Logic cell Interconnect 2
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ACT 1 Logic Modules ACT 1 FPGAs use a single type of logic module. (a) An Actel FPGA. (b) An ACT 1 logic module. (c) An implementation of an ACT 1 logic module using pass transistors. (d) An example of function implementation by an ACT 1 logic module. 3 ACT 2 and ACT 3 Logic Modules Both ACT 2 and ACT 3 FPGAs use two types of logic module. (a) The C-module used by both ACT 2 and ACT 3 FPGAs. (b) The ACT 2 S-module. (c) The ACT 3 S-module. (d) Equivalent circuit of the SE. (e) The sequential element configured as a positive-edge- triggered D flip-flops. 4
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Routing Architecture of ACT Family A row-based architecture. Each horizontal channel consists of a number of routing tracks. Some routing tracks are segmented where adjacent segments can be connected through antifuses to form longer lines. There are also some vertical tracks running through the logic modules and horizon- tal channels. 5 Rows of logic modules Antifuses FILENAME.APP=6822FG13.PS Vertical segments Segmented routing channels I/O module Routing architecture of an Actel ACT FPGA.
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  • Winter '16
  • tulasi kumar
  • Altera Corporation, Altera

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