minimizing power cnsumption in dic
TRANSCRIPT
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clk
0
1D Q
FSM
en
MULD Q
FSM
en
clk
MUL
D Q
FSM
en
clk
MUL
D
G
lat
Q
D
G
lat
QD Q
FSM
en
clk
MUL
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D QCombo
Logic>
D Q
clk
Combo
Logic D Q>
0
1
D Q
D Q
D Q
+
A[msb]
clk
clk
A[msb]
B[msb]
Stage A Stage B
Stage A Stage B
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a
bc
d
a
b
c
d
a
b
c
d
p(a) = 0.3 p(b) = 0.4
p(c) = 0.7 p(d) = 0.5
SA = p(ab) + p(abd) + p(abcd)
= 0.222
SA = p(ab) + p(cd) + p(abcd)
= 0.512
high SA
low SA
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