Datasheet

Section 14 Power-On Reset and Low-Voltage Detection Circuits (H8/38124 Group Only)
Rev. 8.00 Mar. 09, 2010 Page 435 of 658
REJ09B0042-0800
Bit 3—LVDR Detection Level Select (LVDSEL)
This bit is used to select the LVDR detection level. Select 2.3 V (typical) reset if voltage rise and
drop detection interrupts are to be used. For reset detection only, Select 3.3 V (typical) reset.
Bit 3
LVDSEL Description
0 Reset detection voltage 2.3 V (typ.) (initial value)
1 Reset detection voltage 3.3 V (typ.)
Bit 2—LVDR Enable (LVDRE)
This bit is used to control whether resets triggered by LVDR are enabled or disabled.
Bit 2
LVDRE Description
0 LVDR resets disabled (initial value)
1 LVDR resets enabled
Bit 1—Voltage Drop Interrupt Enable (LVDDE)
This bit is used to control whether voltage drop interrupt requests are enabled or disabled.
Bit 1
LVDDE Description
0 Voltage drop interrupt requests disabled (initial value)
1 Voltage drop interrupt requests enabled
Bit 0—Voltage Rise Interrupt Enable (LVDUE)
This bit is used to control whether voltage rise interrupt requests are enabled or disabled.
Bit 0
LVDUE Description
0 Voltage rise interrupt requests disabled (initial value)
1 Voltage rise interrupt requests enabled