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LGE Internal Use Only
Copyright © 01 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
C318
33p
C323
33p
C320
33p
33p
C317
C316
33p
33p
C315
20
3
D
Z
71
3
R
K7.
4
0.1u
C321
S301
5000-12P-2_95D-A1-R0
EAG63211701
C7
41
C1_1
51
C1
31
C3_1
C6
C2
C5
C5_1
C2_1
C3
C7_1
C6_1
61
6
D
N
G
VPP2
I/O2
CLK1
RST2
GND2
GND1
RST1
VPP1
CLK2
3
D
N
G
VCC1
5
D
N
G
VCC2
4
D
N
G
I/O1
VA308
VA309
VA312
VA311
VA310
81
3
R
K7.
4
2V85_VSIM
2V85_VSIM
2V85_VSIM
2V85_VSIM
0.1u
C319
SIM_CLK
SIM_CLK
SIM_DATA_1
SIM_RST_N
SIM_DATA_2
SIM_RST_2
FSA2259UMX
U302
EUSY0186504
6
5
7
4
8
3
9
2
10
1
C
C
V
2B1
1
B1
2A
1A
S2
S1
0
B2
1B0
D
N
G
2V85_VSIM
R325
100K
100K
R324
C322
1u
10K
R323
2V85_VSIM
I
N
D
72
3
R
SIM_DATA
SIM_RST_SEL
SIM_SEL
SIM_DATA_1
SIM_DATA_2
SIM_RST_2
3.8 SIM Card Interface
The Main Base Band Processor(XMM15) provides SIM Interface Module.
The XMM15 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, 5 signals SIM_DATA_1, SIM_DATA_, SIM_CLK, SIM_RST_N, SIM_RST_
And This model supports .85V SIM Card.
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_1
This signal is interface datum.
Figure 3-8-1.Dual SIM CARD Interface