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?????? ??????

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?? ??????? ?? ??????? ??? ?????? ????? ?????? ???? ???? ... JA. JB. JC. KA. KB. KC. 100. 000. 000. 110. 100. 101. 001. 010. 111. 011. ????? ?????. 1. 0. 1 ... – PowerPoint PPT presentation

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Title: ?????? ??????


1
?????? ?????? Registers Counters
  • ?????? ????????? ??????? ?????? ??????, ????????
    ????????.
  • ?? ??????? ?? ??????? ??? ?????? ????? ??????
    ???? ???? ????? (???? ????? ?????).
  • ??????? ???? ??????
  • ????? ?????, ?????, ???????
  • ????? ????? ??????
  • ????? ????, ???
  • ?????? ??????? ??????? ??????? ??????? ?????.
  • CPU

ALU
CU
Arithmetic Logic Unit
Control Unit
2
???? 4-bit ?? ????? ???????
  • ???? ?????
  • ?? ????? ?? ??? ??????

3
????? ????? SRFF
LOAD 0 - ??? ????? ??? LOAD 1 - ????? CLEAR
0 - ????? ?????????
???? 4-bit ?? ????? ??????? ??? ????
4
????? ??????? ?? ???? -????? ????? DFF
5
????? ???? ????? ?"? ??????
CP
??? ???? ???
??????
???? ??????
??????
load 1
clear 1
  • ????? ???? ?"???? ???"
  • ????? ??????? ???? ????? ????? ?"?
  • ?????? ?????
  • ?????? ????????? (Mux, Decoder, etc.)
  • ?????? ?????? (ROM)
  • LOAD ?- CLEAR ?????? ?? ???? ????? ??????? ??
    ?????

6
?????
  • ??? ????? ??? B, A
  • ????? ????? X.
  • ????? ????? Y.

???? ??????
????? ????? ????? ??? ??? ?????
A B X A B Y
0 0 0 0 0 0 0
1 0 0 1 0 1 0
2 0 1 0 0 1 0
3 0 1 1 0 0 1
4 1 0 0 1 0 0
5 1 0 1 0 1 0
6 1 1 0 1 1 0
7 1 1 1 0 0 1
7
????? ????? ???? ?? 4 ???
A
D1
B
D2
D3
?? ??????
Y
D4
L1 C1
X
8
????? ???? - Shift Registers
????? ?????
????? ?????
???? ?????

???? ?????
????? ?????

????? ?????
???? ?????? ?????

???? ?????? ?????
  • ???????
  • ?????/??????? ??????
  • ????? (????????) ?????? ??????
  • ??????...

9
????? ???? - ????? ????
???? ???? ?? 4 ?????
10
Serial Shift Register with Parallel Load
11
0 0
0 1
0 0
0 1
0 0
0 1
Serial Input forRIGHT Shift
12
Serial Input for LEFT Shift
1 1
1 0
1 1
1 0
1 1
1 0
13
????? ???? ?"? ????? ????
??? ????
SO
SI
SR-A
FA
S
X
OP
cp
CP
Y
????? ???????
Z
C
SI
SR-B
FF
Q
D
OP
SO
cp
clear
  • ??? ?????? ????? ??????? (1).
  • DFF ???? ?? ?- Carry ????? ?????.
  • ?? ???? ?? ?- DFF ???? ????? ??????.
  • ????? ??????.
  • ???? ????? ????? ??????.

14
????? - Counters
  • ?????? ??????? ??????? ??? ???? ????? ????? ????.
  • ???? ?? ???? ?????? ?????? ?????.
  • ????? ???? 3 ?????? ????????

000
111
001
  • ??? ?????? ???????
  • ???? ????? ?? ???? ????
  • ?????? ????? ????? ?????

110
010
101
011
100
15
???? 3 ??? ????? ????? TFF
  • ???? ????? ???????? ???? ?????? ? TFF ????
    ??????? ??????? ??? ????? ???.

???? ????? ???? ???? 3 ??? ??????
???? ????? ???? ????? ???? ????? ?????? FF ?????? FF ?????? FF
X3 X2 X1 TX3 TX2 TX1
0 0 0 0 0 1
0 0 1 0 1 1
0 1 0 0 0 1
0 1 1 1 1 1
1 0 0 0 0 1
1 0 1 0 1 1
1 1 0 0 0 1
1 1 1 1 1 1
16
  • TX1 1
  • TX2 X1
  • TX3 X1X2

X3
1 1
1 1
X2
X3
X1

1 1
X2
X1
?????????? - ???? ???? ?????? ?? i ??????
Count Pulse
TX1
TX2
TX3
T
T
T
TX1
TX3
TX21
Q
Q
Q
X2
X3
X1
1
O1
O2
O3
????? ???????
17
???? ???? ????? ???
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 1 1 1
1 1 1 0
1 1 0 1
1 1 0 0
1 0 1 1
1 0 1 0
1 0 0 1
1 0 0 0
0 1 1 1
0 1 1 0
Count Down ?????? 1 ? 0 ?? 0 ? 1 ??????? ???? ??
?????? ????? ??? 000
Count Up ?????? 1 ? 0 ?? 0 ? 1 ??????? ???? ??
?????? ????? ??? 111
18
???? ????/???
???? ????
???? ???
????? ????? ??????? ???????
T1 1 Ti Ti-1?Qi-1 ???? ???? Ti
Ti-1?Q'i-1 ???? ???
19
Up Counter
20
Down Counter
21
Up-Down Counter
00 - ???? ???? 10 - ???? ???? 01 - ???? ??? 11 -
???
22
???? ???? ????? ????? JKFF
000?001 ?010 ?100 ?101 ?110
  • 6 ?????
  • 3 ???????

???? ????? ???? ????? ???? ????? ???? ????? ?????? ? - FF ?????? ? - FF ?????? ? - FF ?????? ? - FF ?????? ? - FF ?????? ? - FF
A B B C JA KA JB KB JC KC
0 0 0 0 0 ? 0 ? 1 ?
0 0 0 1 0 ? 1 ? ? 1
0 1 1 0 1 ? ? 1 0 ?
1 0 0 0 ? 0 0 ? 1 ?
1 0 0 1 ? 0 1 ? ? 1
1 1 1 0 ? 1 ? 1 0 ?

?? ?????
23
?????
B
00 01 11 10
0 0 0 ? 1
1 ? ? ? ?
JA
A
C
JA B KA B
B
00 01 11 10
0 ? ? ? ?
1 0 0 ? 1
KA
A
JB C KB 1 JC B KC 1
C
C
B
A
Q
Q
Q
Q
Q
Q
J
K
J
K
J
K
cp
1
1
24
??????? ?????
000
111
110
001
101
010
100
011
??? JA JB JC KA KB KC
011 1 1 0 1 1 1
111 1 1 0 1 1 1
100
000
25
????? ?????
Reset - ????? CP LOAD COUNT ???????/ ?????
0 ? ? ? ???
1 ? 0 0 ??? ?????
1 ? 1 ? ??? ??????
1 ? 0 1 ??? (???? ???? ??????? ???)
Reset
Load
R
L
Count
Clock Pulse
C
CP
????? ?? ????n modulo
  • ????? ?? ????? ???? X
  • ????? ????? ?? ??? Xn-1
  • ???? Xn-1 ????? ?????? ?????? ?? ?????? ?? ?????

26
????? ???? ?????? 6
1
3 2 1 0
???? 1
R
L
0?1 ?2 ?3 ?4 ?5
Clock
1
C
CP
3 2 1 0
0
1
3 2 1 0
???? 2
R
L
3 ?4 ?5 ?6 ?7 ?8
1
Clock
C
CP
3 2 1 0
0 0 1 1
6
0?1 ?2 ?3 ?4 ?5
0
3 2 1 0
R
L
???? 3 (???? ??????)
Clock
1
C
CP
3 2 1 0
??? ?????
27
????? ???? 2
Load 3
Load 3
M 3 4 5 6 7
8 3 ...
S 8 3 4 5 6
7 8 3 ...
  • ????? ?? ????? ???? 3
  • ????? ????? ?? ??? 36-18
  • ???? 8 ????? ?????? ?????? ?? ?????
  • ????? ????? 3 .. 8

28
????? ???? 3
Direct Preset M?0 S?0
Master Count-up 5 ? 6
M 5 6 0 1
...
S 5 6 0
1 ...
Slave Count-up Ends 5 ? 6
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