- D, J, K R S . , R S , . . R S , , . R S . -. . , .
- , , , . .
- . -, -. D;, ( ) , R, Q. .
. 4.6 , 1555 1551.
1= 1 X14 D-. y1=y2=0 , y2=1 .
.4.6.
. 4.7, , . , - , , 4.7, .
) )
. 4.7.
, . - () 58912, 8- - DOD7, , R Q0Q7, () . , . 4- 15515, , . . .
|
|
, , , . , .
(register memory, register file, ). Di (data in). (write address), . . . , , (write enable).
(data out). , , (read address). (read enable).
, , .
. () , .
. , , . . RAM (random access memory, . . ). : (), (), , - . . , . ( Di Qi), .
. j, Di; W/R: ; Qi; ( ) , , CS (chip select). , , . 1552 164 (16 4 ), 5378 2 8. . , .
|
|
. , , , ( - 5).
, (shift register) , . . 4.8, , .4.8, .
) )
.4.8.
Q0 , Qm-1 ; ( Q0) . Shift, , , , , , . Q0 DS (data serial). , DS - , Qm-1 m .
, . , Shift , DS , Shift.
: , , - . . 15511. : , , , .
.
2, .
. . .
- .
- . , ..
, - , .
, , , . , = 2m, - ,m>0, , = 10p, - , > 0. , 2.
Q, . - Qn, = f(n), =0,1,2... , Qn - n - , n - . , Qp = Qp + n.
.
. 1 .
|
|
. , .. . , .
, .. , .
. 4.9. () (6)
. 4.9, , . = 23 = 8, , . , , -1 ( 7), .
: .
.
, m . , , . . , .
. , , 8-4-2-1, 0111 1000 :
0111 ->0110 ->0100 ->0000 ->1000.
, 7 8 6; 4; 0. .
, . 4.9, , . , , . .4.9,: , 1. , .4.10.
|
|
. 4.10
, .. , . Fmax : Fmax = -1. , , .
.
155.5 (.4.11) 2 ( T1) 8 ( 2-4), . "0" , R1 R2 "1". "0". 4- Q0 C2.
. 16 10, . , , - .
. 4.11. 1555
.4.12 155 2, 8-4-2-1. 2 ( TI) 5 ( 2-4), . Q0 C2 . "0" (0000) "9" (1001) - R1,R2 S1,S2. 6 "0".
. 4.12. 1552
155 5, 155 2 155 7 155 6 .4.13
.4.13. .
1557. : +1 1.
"1", (+1) "" ((15). (-1), "0", "" (0). .
1556 , 8-4-2-1. , KI55 , 1001 0000 .
KI55 6 155 7 "1", R "0".
D, . ( 11) "1", . "0", , , D0, D1, D2, D3. , 155 6 (9) 1001 .