Datasheet

Section 26 Low-Voltage Detection Circuits
REJ09B0465-0300 Rev. 3.00 Page 861 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Bit Symbol Bit Name Description R/W
1 VD2MS LVD2
mode
select
0: Generates an interrupt request when the voltage
reaches Vdet2.
1: Generates a reset request when the voltage reaches
Vdet2.
R/W
0 VD2RE LVD2
interrupt/
reset
request
enable
This bit is enabled when the VD2E bit is 1.
0: Disables interrupt/reset requests when the specified
voltage level is detected.
1: Enables interrupt/reset requests when the specified
voltage level is detected.
R/W
Note: This register is not initialized by an LVD2 reset and LVD1 reset.
Table 26.1 shows the relationship between LD2CRH settings and the selection function. LD2CRH
should be used according to table 26.1.
Table 26.1 LD2CRH Settings and Select Functions
LD2CRH Settings Selection Function
VD2MS VD2DFS VD2IRCS
LVD2 Falling
Reset
LVD2 Falling
Interrupt
LVD2 Rising
Interrupt
1 x x O ⎯ ⎯
0 1 x ⎯ O O
0 0 1 ⎯ O ⎯
0 0 0 ⎯ ⎯ O
[Legend] x: Don't care.