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Figure 34 VDET3, VDET4 voltage detection timing) BFVSEL1, BFVSEL0 bit
15.6 Detection voltage setting
Table 38 VDET1,VDET2,VDET3,VDET4 setting
V
Reset /Reset-release voltage
DET1
V
Backup switchover/recover voltage
DET2
V
Full charge detection voltage
DET3
V
V
low-voltage detection voltage
DET4
BAT
4)
The full-charge detection (V
Table 39 BFVSEL1, BFVSEL0
BFVSEL1
BFVSEL0
0
0
1
1
RX8130CE
ETM50E-07
Item
+V
DET11
+V
DET12
+V
DET2
+V
DET31
+V
DET30
+V
DET32
) and low-V
DET3
BAT
Description
3.02 V (default)
0
1
3.08 V
0
2.92 V
1
OFF (Charging without limit)
Seiko Epson Corporation
15 Battery backup switchover function
Symbol
Detect voltage Typ.
/ -V
2.8V / 2.75V
DET11
/ -V
2.7V / 2.65V
DET12
/ -V
1.35V / 1.30V
DET2
/ -V
3.02V / 2.97V
DET31
/ -V
2.92V / 2.87V
DET30
/ -V
3.08V / 3.03V
DET32
-V
2.4V
DET4
detection (V
) control SW2.
DET4
setting
RSVSEL = 0 (default)
RSVSEL = 1
BFVSEL = 00b
default)
BFVSEL = 01b
BFVSEL = 10b
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