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INTERNAL SPECIFICATIONS
81
TIMER 0
or
TIMER 1
CLOCK
DETECTOR
XTAL 1 ÷
12 S3
QD
L
S5
INT0 or INT1
✽ GATE
TR0 or TR1
T0 or T1
C/T
Figure 4-10 INT0 and INT1 timer/counter start/stop control circuit
Table 4-10 GATE·INT·TR timer/counter control tables
GATE
TR0
INT0
RUN
STOP
TIMER 0
0
0
×
•
0
1
×
•
1
0
0
•
1
1
0
•
1
1
1
•
GATE
TR1
INT1
RUN
STOP
TIMER 1
0
0
×
•
0
1
×
•
1
0
0
•
1
1
0
•
1
1
1
•