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Chapter 24
Low-Voltage Detector
User’s Manual U16702EE3V2UD00
Figure 24-6:
Operation Timing of Low-Voltage Detector (LVIMD = 1)
Notes: 1.
The LVIRF bit is bit 0 of the reset source flag register (RESF). For details of RESF, refer to
Chapter 19
”RESET Function” on page 739
.
2.
During the period in which the supply voltage is the set low voltage or lower, the internal
reset signal is retained (internal reset state).
Supply voltage
(V
DD
)
LVI detected
voltage
POC detected
voltage
LVION bit
LVI detected
signal
Internal reset signal
(active low)
LVI reset
request signal
POC reset
request signal
Delay
Delay
Clear
(by POC reset request signal)
Delay
Time
Delay
Delay
Delay
Delay
Delay
Note 2
Clear by
instruction
Set (by instruction, refer
to <3> above.)
LVIRF bit
Note 1
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