(D-). - . JK-
, ( 0, 1) . .
, , , , ( ).
, . : 1 .0 . () , . , .. , , .
. (, ). , .. , .
, .
. , , . RS, D, , JK . () ().
. . , .
, . .
RS-.
RS-. RS- , . , - -. .3.6, -. : Q , - .
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RS-, , : 1 0. 1 Q=1, =0; 0 - Q=0, =1.
S 1, R () 0. : S - set (), R - reset ( ).
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.3.6. RS-
- (), () (),
- ()
. , , , S , , .1. .
-. (.3.6,), tn ( ) tn+1 .
=0 =1 , 1, 1, 0 ( .3.6,).
1, .. Q=1, =0. =0 =1 1 .1 (.. S ) 1 Q=1. 2 1. =0. , .1
.0, .. Q=0, =1. =0 =1 1 .1, .. 1 .1. 2 .1 2 .0 ( =0), .. 2 .0. .0 .1 ( .3.6,).
( 1 (Q=1, =0,) 0, Q=0, =1) =l, =0. Q=0, 2 .0, =1 ( ). .
S=R=1 ( ). 1 (Q=1, =0). S=R=1 2 1. =0. 1 0, Q=1.
S=R=0 ( ) - 0. .3.6,, Q= =1. 1 (Q= 1, =0), 0 (Q=0, =1). . S=R=0 RS- - . , .3.6,. , .3.6,.
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.3.7, RS- -. , . , .3.7,.
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.3.7. RS-
- (), ()
(), - ()
.0 (Q=0, =1), S=0, R=0. .1 Q= 1, =0 S=1, R=0. 2 .0 ( =0), 1 . 0, Q . 1 (.1 Q= 1, =0) ( .3.7,). S=0, R=1. Q . 0, 2 . 0 , =1, . . .0 (Q=0, =1) ( .3.7,).
S=R=0 (0 1). , Q=0 2 0, Q=1. 1 , (. .3.7,) Q=0.
S=R=1 - . Q= =0. , .3.7,.
RS- - .
.3.8, RS- -. , , ( ), . RS- - (3, 4). , .3.8,.
.3.8. RS- ()
()
(S=R==0) 3, 4 1. RS- 1, 2 ( t0-t1); .3.8, . S=l, R==0 ( t1-t2). t2 1 S T(S==1, R=0). 3 0, 4 1, 1, 2 1.
t4, R==1,S=0, t5, S==1,R=0. S=R==1 , 3, 4 0, , , RS- -. RS- , , , .
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D-.
D- . 1 , 0 . ( ) D-. 1 (delay ). D- .
.3.9, D-, RS-. , , .3.9,.
.3.9. D- ()
()
, D- 0 (Q=, =1). t1-t2, D, , =0 1,2 S=R=1. =1 t2 3 S=0, 4 R=1. 1 (Q=1, =0). 1 t4, =0 S=R=1. t4 =1 R=0,S=1 0. D- . , , . 180.
D- .
.3.10, ( ) D- 2-. T2,D 2, 1 1. .3.10,.
t1 0. t1 2 (Q=1). t2 1 1.
t2 1 = 0, 1, 0, .
.3.10. D- ()
()
-.
- . .
- RS- (MS-), (master ), (slave ) ( .3.11,).
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.3.11. - () ()
MS- -. ( 5), . .
RS-, T-, . , t ( ) (.3.11,6). (t).
T- , . . : 1, 0, . , 1. 1 8, 9. 1 , =0. 1 , =0 3 1, 3 0. - 8, 9 . 1, 9 1, 8 0. 9 0, , 0 . , .3.11,. t1, 1. t1 T=1 0, 5 0, 3 4 1. , . t2 =0 5 1. 4 1, 4 , 0 .
t3 1. ( t3) 1 , ( t4) . .
JK-.
JK- T- (.3.11,) -, J ( .3.11,). , JK- . J-, , RS, D- T- (.3.12,-) JK.
JK-, , , : , . , , t JK , : JKt, R-St, Dt, Tt.
.3.12. RS (a), D (), T (),
JK-
RSt Dt (.3.12,,); RSt- (.3.12,) J S; R; Dt- (.3.12,). (t ) J . .3.13.
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. 3.13. : ) RS; ) RS- ; ) RS- (RSC-); ) RS- 1/0; ) RS- 0/1; ) RS- ; ) D- 1/0; ) JK- 3 J-, 3 K- S,R .
3.3.1. .
. , , . ( , , , , , . .) , . .
: . , , : .
, .. . .
, .. . , , .
, , .. .
( ) .
, .
fc t . t .
.
. . ( ) , 2.
. . : , . .
, .3.14,. Tt . , . 3.14.
.3.14. () ()
0 (Q1=Q2=Q3=Q4=0) . (.3.14,) Q=1. 1. 1 Q1 , . 0, 1. 2 0010.
. , .3.14,, , , , .
15- 1 (.3.14,), 16- 0. Q1=0 Q2=0, , , Q3=0, Q4=0, .. .
.3.14, 0 (T1 T2) , (1-3) (T1-4) 16- . , , 4, 8 16. Kc =2N, N .
(.3.14, ). . , .
fx = I/K
tmax . , tmax 2N-1 00...0.
tmax=Nt .,
t. - t .
, .
f=1/(t + t max).
2N. B () = 2N . 2, 4, 8, 16, 32 .. , . , =3, 10 . ., . . , 3, 10 . .
. =2N . () s :
s =2N-KC,
2N - ; - .
s. , K=3 =10 1 6 .
K 2N . 0 . , .
, . , 2N. , =10 0 16-, 10- ( 166).
=10 .3.15. t- 1 5, t2 Tt4.
.3.15.
t1 , Tt2 - t4 , 1 -4.
10- , (.3.3).
, 1 -4 0 Q1=0 t2 - t4. t1 (. .3.3). 1 ( 1 Q1=1, - 1 Q4=1). 2 Q2=0, 3 - Q2=Q3=0, 4 - Q4=0. 0 Tt1 1 t2. 1-4 (Q1=0) t1. .3.3 .
3.3
4 | 3 | 2 | 1 | |
: Q1=Q4=1, Q2=Q3=0. Q2=Q3=Q4=0 1, 2, 3, Q4=1 4 10- . 10- t1 Tt4 0, .
1 .
, 1.
. .
K=10 (.3.16). 1 .
.3.16.
1 , .. , . 1 T4 1 . , 8+6=14. 1 T1, 10- .
K=10 . . (.3.17).
100, 1000 . . 0 9. 0, 1 , 10. ( 10 90), ( 100 900) , .
. 3.17.