33/12
GATE = 1 /INT0 /INT1
C/T —— /
C//T = 0

D7
D6
D5
D4
D3
D2
D1
D0
TF1
TR1
TF0
TR0
Copyright http://www.myvtc.edu.cn 2006

Copyright http://www.myvtc.edu.cn 2006

Copyright http://www.myvtc.edu.cn 2006
2
2——THTL
MOV TL0,#00H
Copyright http://www.myvtc.edu.cn 2006
3/——IE
Copyright http://www.myvtc.edu.cn 2006

TMOD
(TMOD)00H
Copyright http://www.myvtc.edu.cn 2006
T150ms12001
(TMOD10
12MHZ
MOV TL1,#0B0H
DJNZ 20HNO
MOV 20H#20
DJNZ 21HNO
MOV 21H#60

TMOD=51H
MCS-515
/12
T0T1
MCS-51
1
2
A
3
4
B
5
6
C
9
8
D
11
10
E
13
12
F
1
2
A
3
4
B
5.1k
5.1k
1
2
3
A
74F00
4
5
6
B
74F00
S
+5V
GND
+5V
T0
PI.0
PI.1
PI.2
PI.3
PI.4
PI.5
PI.6
PI.7