3. TECHNICAL BRIEF
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3.8 SIM Card Interface
Figure 3-8-1. SIM CARD Interface
Signal
Description
SIM_RST
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(XMM2130) provides SIM Interface Module.
The XMM2130 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.
And This model supports 1.8/3V SIM Card.
3. TECHNICAL BRIEF
J301
9
8
10
7
6
3
5
2
4
1
C1
C5
C2
C6
C3
C7
GND1
GND4
GND2
GND3
ZD301
ZD302
R309
4.7K
2V85_VSIM
2V85_VSIM
0.1u
C315
DNI
C316
22p
C317
ZD303
22p
C318
SIM_DATA
SIM_CLK
SIM_RST
These are added for CMCC ESD test
ZD200ZD201 is DNI defaultly
SIM_CONNECTOR 1(Default)