CHAPTER 17 TURNING ON/OFF POWER
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User’s Manual U14492EJ3V0UD
[Other timing]
•
If power is supplied to the V
DD5
and AV
DD
pins before the voltage on the V
DD3
pins rises to the level at which the
operation is guaranteed (3.0 to 3.6 V), the status of the I/O pin is undefined
Note
until the voltage on the V
DD3
pin
reaches 3.0 V.
•
If the voltage on the V
DD3
pin drops below the level at which the operation is guaranteed (3.0 to 3.6 V) before the
voltage on the V
DD5
and AV
DD
pins drops to 0 V, the status of the I/O pin is undefined
Note
.
Note
This means that the input or output mode of an I/O pin, or the output level of an output pin is not
determined.
Figure 17-2. Other Timing
Depends on program setting
Undefined
I/O pin
V
DD3
V
DD5
, AV
DD
0 V
0 V
0 V
0 V
RESET (input)
Undefined
3.0 V
4.5 V
3.0 V
4.5 V
Remark
The broken line indicates a high-impedance state.
Содержание V850E/IA1 mPD703116
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