High-bandwidth Address Generation Unit

  • Authors:
  • Carlo Galuzzi;Chunyang Gou;Humberto Calderón;Georgi N. Gaydadjiev;Stamatis Vassiliadis

  • Affiliations:
  • Computer Engineering Laboratory, Electrical Engineering, Mathematics and Computer Science Faculty, TU Delft, Delft, The Netherlands;Computer Engineering Laboratory, Electrical Engineering, Mathematics and Computer Science Faculty, TU Delft, Delft, The Netherlands;Computer Engineering Laboratory, Electrical Engineering, Mathematics and Computer Science Faculty, TU Delft, Delft, The Netherlands;Computer Engineering Laboratory, Electrical Engineering, Mathematics and Computer Science Faculty, TU Delft, Delft, The Netherlands;Computer Engineering Laboratory, Electrical Engineering, Mathematics and Computer Science Faculty, TU Delft, Delft, The Netherlands

  • Venue:
  • Journal of Signal Processing Systems
  • Year:
  • 2009

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Abstract

In this paper we present an efficient data fetch circuitry to retrieve several operands from a n-way parallel memory system in a single machine cycle. The proposed address generation unit operates with an improved version of the low-order parallel memory access approach. Our design supports data structures of arbitrary lengths and different odd strides. The experimental results show that our address generation unit is capable of generating eight 32驴驴驴bit addresses every 6 ns for different strides when implemented on a VIRTEX-II PRO xc2vp30-7ff1696 FPGA device using only trivial hardware resources.