參數資料
型號: M37471M8-797FP
廠商: Mitsubishi Electric Corporation
英文描述: FUSE RESETTABLE .50A 13.2V SMD
中文描述: 單芯片8位CMOS微機
文件頁數: 31/46頁
文件大小: 646K
代理商: M37471M8-797FP
31
7470/7471 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Notes 1 :
Latency time is automatically generated upon release from the STP instruction due to the connections of timer 3
and 4.
2 :
When the system clock is switched over by restarting clock oscillation, a certain wait time required for oscillation
to stabilize must be inserted by the program.
f(X
IN
) oscillation
f(X
CIN
) stop
φ
stop
Timer operation
STP instruction
Interrupt (Note 1)
CM
4
= 0
CM
5
= 0
CM
6
= 0
CM
7
= 0
Reset
WIT instruction
Interrupt
f(X
IN
) oscillation
f(X
CIN
) stop
P5
0
, P5
1
input
φ
= f(X
IN
)/2
f(X
IN
) stop
f(X
CIN
) stop
φ
stop
f(X
IN
) oscillation
f(X
CIN
) oscillation
φ
stop
Timer operation
STP instruction
Interrupt (Note 1)
WIT instruction
Interrupt
f(X
IN
) oscillation
f(X
CIN
) oscillation
φ
= f(X
IN
)/2
f(X
IN
) stop
f(X
CIN
) stop
φ
stop
CM
4
= 0
CM
5
= 1
CM
4
= 1
(Note 2)
f(X
IN
) oscillation
f(X
CIN
) oscillation
φ
stop
Timer operation
STP instruction
Interrupt (Note 1)
WIT instruction
Interrupt
f(X
IN
) oscillation
f(X
CIN
) oscillation
φ
= f(X
CIN
)/2
f(X
IN
) stop
f(X
CIN
) stop
φ
stop
CM
7
= 0
(CM
5
= 0)
CM
7
= 1
f(X
IN
) stop
f(X
CIN
) oscillation
φ
stop
Timer operation
STP instruction
Interrupt (Note 1)
WIT instruction
Interrupt
f(X
IN
) stop
f(X
CIN
) oscillation
φ
= f(X
CIN
)/2
f(X
IN
) stop
f(X
CIN
) stop
φ
stop
CM
6
= 0
(Note 2)
CM
6
= 1
CM
5
= 1
CM5 = 1
Fig. 27 Transition of states for the system clock
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