RM-91; RM-92
System Module
Flash LED interface and electrical characteristics
Signal name
GPIO28
ARMIO4
VBAT
STROBE
Description
Parameter
GPIO28
GPIO output
ARMIO4
GPIO output
STROBE
Strobe signal
output
Slider switch electrical characteristics
Signal name
GPIO53
Application
processor
Back-up battery interface connections and electrical characteristics
Pin name
L2207, VBack
->
Description
Parameter
Back-Up
Vback
Battery
Voltage
Issue 1
Table 28 Flash LED interface connections
From
D4800
D4800
Battery
Camera
Table 29 Flash LED interface electrical characteristics
Min
1.72
1.72
2
From
To
S5202
Table 30 Back-up battery connections
I/O
Connection
N2200, VBack
Table 31 Back-up battery electrical characteristics
Min
0
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To
N1471
N1471, V1472
N1471
N1471, V1472
Typ
1.8
1.92
1.8
1.92
-
2.5
Low value
High value
160 mV
1.8 V
Back-up battery G2200 is connected to N2200
via coil
Typ
2.5
2.7
Nokia Customer Care
Description
Indicator mode enable
signal
Flash mode enable test
signal (only test use)
Battery nominal voltage
Flash light enable signal
from back camera
Max
Unit
V
V
V
Description
Slider switch
cover status
signal.
Notes
Max
Unit
V
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