Title :
Application of credit-based flow control to RSFQ micropipelines
Author :
Zinoviev, D.Y. ; Maezawa, M.
Author_Institution :
State Univ. of New York, Stony Brook, NY, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
Traditional micropipelines based on handshaking mechanisms are simple and reliable, but their throughput is limited by the round-trip flight time between two consecutive micropipeline stages. We propose an RSFQ implementation of a micropipeline with simple credit-based flow control that can hide the round-trip latency and significantly improve the throughput. In this paper, we present numerically calculated and experimentally measured throughput for several types of RSFQ credit-controlled micropipelines (including the special case of a micropipeline with only one credit), and their critical comparison.
Keywords :
pipeline processing; superconducting logic circuits; RSFQ micropipeline; credit-based flow control; round-trip latency; throughput; Buffer storage; Clocks; Delay; Digital circuits; Distributed computing; Logic circuits; Pipelines; Protocols; Superconducting logic circuits; Throughput;
Journal_Title :
Applied Superconductivity, IEEE Transactions on