Sim Card Interface - LG -T500 Service Manual

3.8 SIM Card Interface

VSIM_PWR_NFC
R317
DNI
SWP
SIM_DATA
The Main Base Band Processor(XMM215) provides SIM Interface Module.
The XMM215 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_N.
And This model supports 1.8/3V SIM Card.
Signal
SIM_RST_N
SIM_CLK
SIM_DATA
LGE Internal Use Only
VSIM_PWR
R318
4.7K
J301
C5
GND1 VCC
C6
VPP RST
C7
IO CLK
C8
Rsvd2 Rsvd1
C12
C309
GND5 GND2
C11
22p
GND4 GND3
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 is interface datum.
VSIM_PWR VSIM_PWR_NFC
R320 R319
0 DNI
C1
C2
C3
C4
C9
C310
C10
C311
0.1u
DNI
Description
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3. TECHNICAL BRIEF
No NFC
SIM_RST_N
SIM_CLK
C312
22p
Only for training and service purposes