LG GB220 - SIM Card Interface

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3.8 SIM Card Interface
Figure 3-8-1. SIM CARD Interface
This signal is interface datum.SIM_DATA
This signal is transferred to SIM card.SIM_CLK
This signal makes SIM card to HW default status.SIM_RST
DescriptionSignal
The Main Base Band Processor(XMM2130) provides SIM Interface Module.
The XMM2130 checks status Periodically During established call mode whether SIM card is inserted or not,
but it doesn't check during deep sleep mode. In order to communicate with SIM card, 3 signals SIM_DATA,
SIM_CLK, SIM_RST.
And This model supports 1.8/3V SIM Card.
C222
1000p
6
C7
7
GND1
GND2
89
GND3
GND4
10
J200
C1
1
C2
2
3
C3
C5
4
5
C6
0
4.7K
R220
R219
2V85_VSIM
C221
DNI
C220
DNI
2V85_VSIM
220n
C219
SIM_RST
SIM_CL
K
SIM_DATA