
3. TECHNICAL BRIEF
- 45 -
LGE Internal Use Only
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.8 SIM Card Interface
Figure 3-8-1. SIM CARD Interface
Signal
Description
SIM_RST_N
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(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.
J301
C8
C4
C11
C10
C12
C9
C7
C3
C6
C2
C5
C1
VCC
GND1
RST
VPP
CLK
IO
GND2
GND5
GND3
GND4
Rsvd1
Rsvd2
VSIM_PWR_NFC
DNI
R317
VSIM_PWR
R318
4.7K
0
R320
VSIM_PWR
VSIM_PWR_NFC
0.1u
C310
C311
DNI
C312
22p
C309
22p
R319
DNI
SIM_DATA
SIM_CLK
SWP
SIM_RST_N
No NFC