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參數(shù)資料
| 型號(hào)： | M34570E8FP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO36 |
| 封裝： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-36 |
| 文件頁數(shù)： | 28/69頁 |
| 文件大小： | 780K |
| 代理商： | M34570E8FP |
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33
MITSUBISHI MICROCOMPUTERS
4570 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Fig. 29 State transition
S
R
Q
Power down flag P
POF instruction
Reset input or voltage
drop detection circuit
output
q Set source
POF instruction is executed
q Clear source
Reset input
Software start
P = “1”
?
Yes
Warm start
Cold start
No
Fig. 30 Set source and clear source of the P flag
Fig. 31 Start condition identified example using the SNZP
instruction
Table 15 Key-on wakeup control register and pull-up control register
K03
K02
K01
K00
Port P43 key-on wakeup
control bit
Port P42 key-on wakeup
control bit
Port P41 key-on wakeup
control bit
Port P40 key-on wakeup
control bit
Key-on wakeup control register K0
0
1
0
1
0
1
0
1
Key-on wakeup not used
Key-on wakeup used
Key-on wakeup not used
Key-on wakeup used
Key-on wakeup not used
Key-on wakeup used
Key-on wakeup not used
Key-on wakeup used
at reset : 00002
at RAM back-up : state retained
R/W
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Port P43 pull-up transistor
control bit
Port P42 pull-up transistor
control bit
Port P41 pull-up transistor
control bit
Port P40 and P01 pull-up transistor
control bit
0
1
0
1
0
1
0
1
at reset : 00002
at RAM back-up : state retained
Pull-up control register PU0
R/W
PU03
PU02
PU01
PU00
Note: “R” represents read enabled, and “W” represents write enabled.
: The time required to stabilize f(XIN) oscillation is automatically
generated by hardware.
Stabilizing time a
POF instruction
is executed
A
f(XIN) oscillation
Return input
(Stabilizing time a )
B
(RAM back-up
mode)
f(XIN) stop
Reset
(Stabilizing time a )
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