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3.5 SIM & uSD interface
KP502 supports 1.8V & 2.9V plug in SIM, SIM interface scheme is shown in (Figure 8).
SIM_IO, SIM_CLK, SIM_RST ports are used to communicate with BBP(S-Gold3) and the SIM power
supply enabled by PMIC.
SIM Interface
SIM_CLK : SIM card reference clock
SIM_RST : SIM card Async /sync reset
SIM_IO : SIM card bidirectional reset
micro SD & SIM(Hybrid Socket)
VIO_2V62
2 R
6 0
0 1
K 0
M
M
_ C
2 D
M
M
_ C
3 D
M
M
C
C _
M
D
M
M
C
C _
K L
M
M
_ C
0 D
M
M
_ C
1 D
M
M
C
D _
E
E T
T C
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VMME_2V9
2 R
7 0
2 R
8 0
2 R
9 0
2 R
0 1
2 R
1 1
4
K 7
4
K 7
4
K 7
4
K 7
4
K 7
2 R
2 1
7 4
2 C
9 2
2 C
0 3
D
I N
u 1
Figure 8 SIM & Micro SD Circuit
3. TECHNICAL BRIEF
1
1
2
2
3
3
4
6 1
4
G
N
1 D
U202
5
5 1
5
G
N
2 D
6
4 1
6
G
N
3 D
7
3 1
7
G
N
4 D
8
2 1
8
G
N
5 D
1 1
G
N
6 D
9
S
W
B
0 1
S
W
A
1743733- 2
ENSY0017901
- 39 -
VSIM_2V9
2 R
4 0
1
K 0
I S
_ M
O I
S
M I
C _
K L
S
M I
R _
T S
2 C
6 2
2 C
7 2
2 C
8 2
. 0
u 1
2
p 2
5 1
p 0
LGE Internal Use Only
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Troubleshooting
