8
JUMPER SWITCH SETTINGS
S5U1C17801T1100 HARDWARE MANUAL
EPSON
23
(SOFTWARE EVALUATION TOOL FOR S1C17801)
Setting for JP
2
JP
2
can be used to select the power supply source for RTCV
DD
as shown in the following. Short
2
-
3
on JP
2
to se-
lect V
DD
for the power supply to RTCV
DD
, whereas
1
-
3
to select battery. For details, see the description of RTC
control circuit in Chapter
10
. Note that, when
1
-
2
is shorted, a coin cell battery is required to activate RTCV
DD
.
Factory default setting for JP
2
is
1
-
2
shorted.
JP2
JP2
C55
0.1µF
C47
10µF
JP2
DIC-149-3P
1
2
1
2
3
To RTCV
DD
V
DD
D10
CRS06
BAT1
106
V
DD
Battery
+
–
Fig.
8
.
2
.
1
JP
2
Related Circuit
Summary of Contents for S5U1C17801T1100
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