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O U T PU T D E LA Y . T h e o u t p u t s i g n a l i s effe c t i v e w h e n t h e i n p u t si g na l
retu r n s t o i ts o p p o s i te stat e .
r ,
E X T E N D E R . I n d i cates w h e n a l o g i c f u n c t i o n i n c re a se s
L
..J
E --I
t-- E
n u m be r of i n p uts t o a n o t h e r l o g i c f u n c ti o n .
F L I P- F L O P . A b i na ry s e q u e n ti a l e l e me n t w i t h t w o sta b l e states: a set 1 1 ,
state a n d a reset
f l o p i s s e t . I n t h e reset state t h e o u t p uts w i l l be o p p o s i te to t h e set state .
r
---- -4
R ES ET . A 1 i n p u t w i l l reset t h e f l i p-fl o p . A retu rn to
R
L
effect.
r
-; s
S ET . A 1 i n p u t w i l l set t h e f l i p -f l o p . A ret u rn t o
L
r
TOG G L E . A 1 i n p u t w i l l c a u s e t h e f l i p -f l o p to c ha n g e state . A retu r n to
--l
T
L... .
c a u s e n o f u rt h e r a c t i o n .
r
J I N P U T . S i m i l a r t o t h e S i n p u t e xc e p t i f b o t h
--t
J
1-
t h e f l i p-f l o p c ha n g es .
r
---f
K
K I N P U T . S i m i l a r t o t h e R i n p u t
1-
r
D I N P U T
---f D
a n d D i n p ut s a re a t 1 , t h e f l i p-f l o p w i l l b e s e t . W h e n t h e
C
1-
t h e f l i p -f l o p w i l l reset.
r
---- -4 A
A D D R E S S . Ad d re ss s y m b o l has m u lt i p l e x i n g re l at i o n s h i p at i n p u ts a n d
L
d e m u l t i p l e x i n g re l a t i o n sh i p a t o u t p uts.
Depe n d e n c y Nota t i o n
8 -5 1 .
8 -5 2 .
D e pe n d e n c y N ot a t i o n
def i n i n g t h e e x i st e n c e o f a n A N D re l at i o n s h i p b etwee n i n p u t s , o r b y t h e A N D c o n d i ti o n i n g o f
a n o u t p u t b y a n i n p u t w i t h o u t ac t u a l l y s h O W i n g a l l t h e e l e me n ts a n d i n te rco n n e c t i o n s
i n vo l ved . T h e f o l l o w i n g e xa m p l e s u se t h e l e tte r " C " f o r c o n t r o l a n d
d e pe n d e n t i n p u t i s l a b e l ed w i t h a n u m b e r t h a t i s e i t h e r p r e f i x e d e . g
.
X
T h e b o t h m e a n t h e s a m e t h i n g . T h e l ette r " V " i s u sed to i n d i c a te a n O R r e l a t i o n sh i p
between i n p u t s a n d o u t p u ts w i t h t h i s l ette r V . T h e l e t t e r " F " i n d i c a tes a c o n nec t-d i sc o n n e c t
re l at i o n s h i p . I f t h e " F " f ree d e p e n d e n c y i n p u ts a n d o u t p u ts a re a c t i ve
n o r m a l c o n d i t i o n s a p p l y . I f o n e o r m o re of t h e " F " i n p u t s a re a c t i ve 0 . t h e re l a ted
d i s c o n n e cted f r o m i t s n o r m a l o u t p u t c o n d i t i o n i t f l oats
The i n p u t that c o n t r o l s or g ates o t h e r i n p uts is l a be l e d with a
fol l o w e d b y a n i d e n t i f y i n g n u m be r . T h e c o n t r o l l e d o r g ated i n p u t o r o u t p u t
i s l a be l e d w i t h t h e s a m e n u m be r . I n t h i s e xa m p l e , " 1 " i s c o n t ro l l e d b y " G 1 " .
1 0 1
state . O ut p uts a re s h o w n i n t h e 1 -sta te w h e n t h e f l i p
I
see R eset
I .
I
Data
A l ways d e p e n d e n t o n a n o t h e r i n p u t
" e "
" G " " V" " F"
I S
a way to s i m p l i f y s y m b o l s f o r c o m p l e x I C e l e m e n t s b y
e xte n d s
I
0
wi l l ca use n o f u rt h e r
0
w i l l c a use no f u rt h e r effe c t .
0
J
I
I
a n d K
see b e l ow
a re a t 1 ,
I .
I
I .
u s u a l l y
C
W h e n t h e
i s 1 a n d t h e D i s O ,
C
"
G
"
f o r g ate T h e
. . 1
X or s u bsc ri pted e . g . ,
1
t h e ot h e r u s u a l
' T '
o u t p u t i s
o r a " G " ,
" C "
M o d e l 5 363 8
S e r v i c e
t h e
w i l l
8 - 1 1
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