Datasheet

Section 26 Low-Voltage Detection Circuits
REJ09B0465-0300 Rev. 3.00 Page 873 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Start
Set VD2E in LD2CRL to 1.
Wait for t
d(E-A).
Set VD2IRCS in LD2CRH.
Set VD2DFCK[1:0] in LD2CRH.
Set VD2DFS in LD2CRH.
Clear VD2MS in LD2CRH to 0.
Set VD2RE in LD2CRH to 1.
End
[1]
[2]
[3]
[4]
[5]
Set VD2E in LD2CRL to 1 to activate the LVD2 circuit
and wait for the stabilization.
Set interrupt request generation conditions
when the digital filter is not used.
Set the digital filter.
Set the LVD2 circuit to generate interrupt requests.
Enable the LVD2 circuit interrupt requests.
[1]
[2]
[3]
[4]
[5]
Figure 26.9 Procedure to Set LVDI2