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Fast register-transfer-module writable control store for microprogrammed computer design

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3 Author(s)
McDonald, J.F. ; Yale University, New Haven, Conn. ; Sustman, J.E. ; Harris, R.G.

A fast microprogrammed sequencer for computer timing and control is described. This module can be made compatible with various commercially available computer modules. The design can provide sequencing times on the order of 120 ns for nonbranch microsteps, and is fully programmable. The sequencer provides multiway indexed branching and microsubroutine calls. The cost of the sequencer is relatively low (parts cost less than roughly 500 dollars), making it ideal for small controller design and also for educational applications.

Published in:

Proceedings of the IEEE  (Volume:61 ,  Issue: 11 )