Datasheet

Section 26 Low-Voltage Detection Circuits
Page 864 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Bit Symbol Bit Name Description R/W
1 VD1MS LVD1 mode
select
0: Generates an interrupt request when the voltage reaches
Vdet1.
1: Generates a reset request when the voltage reaches
Vdet1.
R/W
0 VD1RE LVD1
interrupt/
reset
request
enable
This bit is enabled when the VD1E bit is 1.
0: Disables interrupt/reset requests generated when the
specified voltage level is detected.
1: Enables interrupt/reset requests generated when the
specified voltage level is detected.
R/W
Note: This register is not initialized by an LVD2 reset and LVD1 reset.
Table 26.2 shows the relationship between the LD1CRH settings and selection function. LD1CRH
should be set according to table 26.2.
Table 26.2 LD1CRH Settings and Select Functions
LD1CRH Select Functions
VD1MS VD1DFS VD1IRCS
LVD1 Falling
Reset
LVD1 Falling
Interrupt
LVD1 Rising
Interrupt
1 x x O ⎯ ⎯
0 1 x ⎯ O O
0 0 1 ⎯ O ⎯
0 0 0 ⎯ ⎯ O
[Legend] x: Don't care.