M16 EVB User Guide
3.3. SIM card interface
Figure 5: SIM card interface
Table 6: Pins of SIM card interface
Pin
Signal
I/O
Description
1 SIM_GND
Ground
2 VPP
Not
connected
3
SIM_DATA
I/O
SIM card data I/O
4 SIM_CLK O
SIM
card
clock
5
SIM_RST
O
SIM card reset
6
SIM_VDD
O
SIM card power output
7
SIM_DETECT
Pulled up to VDD_EXT
8 SIM_PRESENCE I
SIM
card
detection
In Figure 5, the pin SIM_PRESENCE is used to detect whether the tray of the Molex SIM socket,
which is used for holding SIM card, is present in the card socket. When the tray is inserted in the
socket, SIM_PRESENCE is at high level. For more details, please refer to
Document [3].
M16_EVB_UGD_V1.01
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