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A time-multiplexed FPGA

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4 Author(s)
S. Trimberger ; Xilinx Inc., San Jose, CA, USA ; D. Carberry ; A. Johnson ; J. Wong

This paper describes the architecture of a time-multiplexed FPGA. Eight configurations of the FPGA are stored in on-chip memory. This inactive on-chip memory is distributed around the chip, and accessible so that the entire configuration of the FPGA can be changed in a single cycle of the memory. The entire configuration of the FPGA can be loaded from this on-chip memory in 30 ns. Inactive memory is accessible as block RAM for applications. The FPGA is based on the Xilinx XC4000E FPGA, and includes extensions for dealing with state saving and forwarding and for increased routing demand due to time-multiplexing the hardware

Published in:

Field-Programmable Custom Computing Machines, 1997. Proceedings., The 5th Annual IEEE Symposium on

Date of Conference:

16-18 Apr 1997