RL78/F13, F14 CHAPTER 26 VOLTAGE DETECTOR
R01UH0368EJ0210 Rev.2.10 1572
Dec 10, 2015
Figure 26-6. Timing of Voltage Detector Reset Signal and Interrupt Signal Generation
(Option Byte LVIMDS1, LVIMDS0 = 1, 0) (1/2)
(Notes and Remark are listed on the next page.)
INTLVI
V
LVDL
V
LVDH
V
POR
= 1.56 V (TYP.)
V
PDR
= 1.55 V (TYP.)
Save
processing
H
Note 3
Supply voltage (V
DD
)
LVIMK flag
(set by software)
Operation status
LVIF flag
LVISEN flag
(set by software)
LVIOMSK flag
LVIMD flag
LVILV flag
LVIRF flag
LVD reset signal
POR reset signal
Internal reset signal
LVIIF flag
Note 1
Cleared by
software
Time
Normal
operation
Wait for stabilization by software
(400 μs or 5 clocks of f
IL
)
If a reset is not generated after releasing the mask,
determine that a condition of V
DD
becomes V
DD
≥ V
LVDH
,
clear LVIMD, and the MCU returns to normal operation.
Cleared
RESET
Normal
operation
RESET
Normal operation
RESET
Save processing
Cleared by
software
Cleared
Cleared by
software
Note 2
Note 3
Cleared by software
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