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Engineering Digital Design
book

Engineering Digital Design

by Richard F. Tinder
January 2000
Intermediate to advanced content levelIntermediate to advanced
884 pages
29h 39m
English
Academic Press
Content preview from Engineering Digital Design
860 APPENDIX C / IEEE STANDARD SYMBOLS
FIGURE C.1
C.3 FLIP-FLOPS, REGISTERS, AND COUNTERS
An explanation of the IEEE standard symbology for sequential machines is somewhat
more involved. Shown in Fig. C.4 are five examples. The symbology for the two flip-flops
is straightforward. Single data and clock inputs are indicated by 1D and C1, respectively.
The active low asynchronous preset and clear inputs are given the symbols S and R for set
and reset.
The symbology used for the MSI devices in Fig. C.4 is more complex, although that for
the storage register appears to be self-evident. The four-bit universal shift register (USR)
uses M
0
3
to indicate the mode
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Publisher Resources

ISBN: 9780126912951