Pin
Signal
I/O
Engine connection
Notes
4
V
DD
<-
N2200
VSIM2
VSIM2, supply
voltage 1.8
(Max 70mA)
5
CLK
<-
D4800
MMC2_CLK
External clock
for the MMC
card, Max 20
MHz
6
Vss2
GND
Ground
7
DAT
<->
D4800
MMC2_DAT0
Bi-directional
data bus
-
MMCDET
->
D4800
btwake1(in)
[P10]
MMC card
detect
Charger connector and charging interface connections & electrical characteristics
Figure 109 Charger connector
Table 22 Charging interface connections
Pin
Signal
I/O
Engine connection
Notes
1
Vchar
In
N2300
VCharIn1, 2
Charging
voltage /
charger
detection,
Center pin
2
Charge GND
Ground
Charger
ground
Table 23 Charging IF electrical characteristics
Description
Parameter
Min
Max
Unit
Notes
Vchar
V Charge
0
9
V
Center pin
Vchar
I Charge
0.85
A
Center pin
Charge GND
0.85
A
Threshold for
charging,
rising (N2300)
V
MSTR+
2.1
V
Typical value
RM-180
System Module
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