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LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
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3.8 SIM Card Interface
Figure 3-8-1. SIM CARD Interface
Signal Description
SIM_RST This signal makes SIM card to HW default status.
SIM_CLK This signal is transferred to SIM card.
SIM_DATA This signal is interface datum.
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.
3. TECHNICAL BRIEF
J401
8 7
6 3
5 2
4 1
VCCGND
RSTVPP
CLKI_O
GND1GND2
ZD403
ZD401
R417
4.7K
2V85_VSIM
2V85_VSIM
0.1u
C413
DNI
C414
22p
C415
ZD402
22p
C416
DNI
R418
SIM_CLK
SIM_RST
SIM_DATA
These are added for CMCC ESD test
ZD200ZD201 is DNI defaultly
SIM_CONNECTOR 1(Default)
3.8 SIM Card Interface