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3. TECHNICAL BRIEF
3.4 SIM & uSD interface
KF350 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
The MicroSD Memory Module has eight exposed contacts on one side. The S-Gold3 is connected
to the module using a dedicated eight-pin connector
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure 8 SIM & Micro SD Circuit
Micro SD Memory Card Detection Scheme
1u
C312
47
R334
2V9_SIM
C313
DNI
C314
0.1u
R331
100K
100K
R330
100K
R332
R329
100K
4.7K
R328
C324
1000p
C315
100K
27p
R333
2V9_VMME
10p
C316
S6
S7
11
10
S8
17
ST1
ST2
18
2
T1
3
T2
T3
4
5
T4
T5
6
7
T6
T7
8
T8
9
19
G1
G2
20
G3
21
S1
16
S2
14
12
S3
S4
1
15
S5
13
S301
2V62_VIO
DNI
R335
100K
C322
MMC_D(2)
MMC_D(0)
MMC_D(1)
SIM_RST
SIM_CLK
SIM_IO
MMC_DETECT
MMC_D(3)
MMC_CMD
MMC_CLK
Содержание KF350
Страница 1: ...Service Manual Model KF350 Service Manual KF350 Date October 2008 Issue 1 0 Internal Use Only ...
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