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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
716 CHAPTER 14 / ASYNCHRONOUS STATE MACHINE DESIGN AND ANALYSIS
Fig. 14.27:
¯
AB AB, AB = I
cb
f
b
= A,
¯
AB = I
ba
f
c
=
¯
AB, I
cb
f
ab
.
Only a single change in the initiator is indicated in c b and b a with B held constant.
Here, state 11 (state c) is the origin state, A is the initiator input, the intended path is
11 01 (c b) , the E-hazard (error) path is 11 01 00, y
0
is the first invariant,
and y
1
is the second invariant.
The remaining requirements for E-hazard formation in the FSM of Fig. 14.28a are
obtained from Eqs. (14.20) and Fig. 14.29 in accordance with Fig. 14.27 and the indirect
path (IP) requirements given previously.
1. A delay t
E
placed on the initiator A input to the first invariant y
0
causes a critical
race to the race gate RG
E
between ...
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Publisher Resources

ISBN: 9780126912951