Sonic Alert msm80154s, msm83c154s Detector, Timer Clock, Timer Gate TR0 INT0 RUN Stop TR1 INT1

INTERNAL SPECIFICATIONS

	XTAL 1		⎟12				S3
	T0 or T1			DETECTOR
INT0 or INT1		C/ T
					D	Q
		S5			L

TIMER 0

or

TIMER 1

CLOCK

✽GATE TR0 or TR1

Figure 4-10 INT0 and INT1 timer/counter start/stop control circuit

Table 4-10 GATE·INT·TR timer/counter control tables

			TIMER 0
GATE	0	0		1	1	1
TR0	0	1		0	1	1
INT0	⋅	⋅		0	0	1
RUN		•				•
STOP	•			•	•

			TIMER 1
GATE	0	0		1	1	1
TR1	0	1		0	1	1
INT1	⋅	⋅		0	0	1
RUN		•				•
STOP	•			•	•

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