User guide

M80 EVB User Guide
M80_EVB_UGD_V1.2 - 22 -
Figure 20: Pins of SIM IC
Table 8: Pins of SIM IC interface
Pin
Signal
I/O
Description
Note
1
GND
Ground
2
SIM1_DATA
I/O
SIM1 card data I/O
3
NC
Not connected
4
NC
Not connected
5
NC
Not connected
6
SIM1_CLK
O
SIM1 card clock
7
SIM1_RST
O
SIM1 card reset
8
SIM1_VDD
O
SIM1 card power
1
2
3
4
5
6
7
8
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