參數(shù)資料
型號(hào)： M37540M4-XXXSP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù)： 40/64頁(yè)
文件大?。?/td> 668K
代理商： M37540M4-XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7540 Group
MITSUBISHI MICROCOMPUTERS
40
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Fig. 49 State transition
State 1
Operation clock source: X
IN
X
IN
oscillation enabled
Ring oscillator stop
CM3
←
0
2
CM7,6
←
10
2
CM4
←
1
2
CM4
←
0
2
CM7,6
←
NOT(10
2
)
CM3
←
1
2
CM4
←
1
2
CM4
←
1
2
CM3
←
1
2
CM3
←
1
2
CM7,6
←
NOT(10
2
)
CM4
←
0
2
CM7,6
←
NOT(10
2
)
CM4
←
0
2
CM3
←
1
2
CM7,6
←
10
2
CM3
←
0
2
CM7,6
←
10
2
CM4
←
1
2
CM3
←
0
2
CM7,6
←
10
2
CM4
←
1
2
CM7,6
←
NOT(10
2
)
CM3
←
1
2
State 2
Operation clock source: X
IN
X
IN
oscillation enabled
Ring oscillator enalbed
State 3 (initial state after reset)
Operation clock source: Ring oscillator
X
IN
oscillation enabled
Ring oscillator enalbed
State 4 (low power dissipation mode
by ring oscillator)
Operation clock source: Ring oscillator
X
IN
oscillation stop
Ring oscillator enalbed
Notes on switch of clock
(1) Execute the state transition from state 3 to state 2 after stabilizing X
IN
oscillation.
(2) Do not execute the state transition shown
(3) In operation clock source = X
IN
, the double-speed mode, high-speed mode, and
middle-speed mode can be selected for the CPU clock division ratio.
(4) In operation clock source = ring oscillator, the middle-speed mode is selected for
the CPU clock division ratio.
(5) Do not stop the clock selected as the operation clock because of setting of CM3, 4.
.
相關(guān)PDF資料
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