RL78/G1P
CHAPTER 19 VOLTAGE DETECTOR
R01UH0895EJ0100 Rev.1.00
634
Nov 29, 2019
Figure 19-5. Timing of Voltage Detector Internal Interrupt Signal Generation
(Option Byte LVIMDS1, LVIMDS0 = 0, 1)
H
Time
INTLVI
LVIF flag
LVIMD flag
LVIMK flag
(interrupt MASK)
(set by software)
LVILV flag
Internal reset signal
POR reset signal
LVD reset signal
Supply voltage (V
DD
)
V
LVD
V
POR
= 1.51 V (TYP.)
V
PDR
= 1.50 V (TYP.)
LVIIF flag
Note 2
Note 2
Cleared
Cleared by
software
H
Note 1
Lower limit of operation voltage
Notes 1.
The LVIMK flag is set to “1” by reset signal generation.
2.
When the voltage falls, this LSI should be placed in the STOP mode, or placed in the reset state by
controlling the externally input reset signal, before the voltage falls below the operating voltage range
defined in
27.4 AC Characteristics
. When restarting the operation, make sure that the operation voltage
has returned within the range of operation.
Remark
V
POR
: POR power supply rise detection voltage
V
PDR
: POR power supply fall detection voltage