參數(shù)資料
型號(hào): M37477
廠商: Mitsubishi Electric Corporation
英文描述: Single Chip 8 Bits CMOS Microcomputer(8位單片機(jī))
中文描述: 單芯片的CMOS 8位單片機(jī)(8位單片機(jī))
文件頁(yè)數(shù): 32/47頁(yè)
文件大?。?/td> 669K
代理商: M37477
32
MITSUBISHI MICROCOMPUTERS
7477/7478 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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
CM
5
= 1
Fig. 29 Transition of states for the system clock.
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