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MITX-CFL0 Series - User Guide, Rev. 1.1
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7.15.
Micro SIM Interface Slot for M.2 Key B (U_SIM)
The push-push type Micro SIM card cage U_SIM is connected to M.2 Key B socket for Micro SIM card installation.
Figure 31: Micro SIM Interface Slot U_SIM
Table 37: Pin Assignment U_SIM
Pin
Signal
Description
Note
C1
VCC
Power +3.3 V
C2
GND
Ground
C3
RST
Reset signal
C4
VPP
Programming voltage input
C5
CLK
Clock signal
C6
IO
Input or Output for serial data