Sim Card Interface - LG gd350 Service Manual

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3. TECHNICAL BRIEF

3.8 SIM Card Interface

3.8 SIM Card Interface
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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.
The Main Base Band Processor(XMM2130) provides SIM Interface Module.
And This model supports 1.8/3V SIM Card.
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.
Signal
SIM_RST
Signal
SIM_CLK
SIM_RST
SIM_DATA
SIM_CLK
SIM_DATA
LGE Internal Use Only
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Figure 3-8-1. SIM CARD Interface
Figure 3-8-1. SIM CARD Interface
This signal makes SIM card to HW default status.
This signal is transferred to SIM card.
This signal makes SIM card to HW default status.
This signal is interface datum.
This signal is transferred to SIM card.
This signal is interface datum.
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3. TECHNICAL BRIEF
3. TECHNICAL BRIEF
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Description
Description
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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