Datasheet

Section 26 Low-Voltage Detection Circuits
Page 878 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Start
Set VD1E in LD1CRL to 1.
Wait for t
d(E-A)
.
Set VD1IRCS in LD1CRH.
Set VD1DFCK[1:0] in LD1CRH.
Set VD1DFS in LD1CRH.
Clear VD1MS in LD1CRH to 0.
Set VD1RE in LD1CRH to 1.
End
[1]
[2]
[3]
[4]
[5]
Set VD1E in LD1CRL to 1 to activate the LVD1 circuit
and wait for the stabilization.
Set interrupt request generation conditions
when the digital filter is not used.
Set the digital filter.
Set the LVD1 circuit to generate interrupt requests.
Enable the LVD1 circuit interrupt requests.
[1]
[2]
[3]
[4]
[5]
Figure 26.13 Procedure to Set LVDI1