User's Manual

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FIBOCOM FM150-NA User Manual Page 52 of 75
3.5 USIM Interface
The FM150 module supports dual SIM card single standby, has dual built-in USIM card interface, which
supports 1.8V and 3V SIM cards.
3.5.1 USIM1 Pins
The USIM1 pins description as shown in the following table:
Pin Pin Name I/O Reset Value Description Type
36 UIM1_PWR PO
-
USIM1 power supply 1.8V/3V
30 UIM1_RESET O L USIM1 reset 1.8V/3V
32 UIM1_CLK O L USIM1 clock 1.8V/3V
34 UIM1_DATA I/O L USIM1 data, internal pull up(20KΩ) 1.8V/3V
66 SIM1_DETECT I PU
USIM1 card detect, internal 390K
pull-up.
Active high, and high level indicates
SIM card is inserted; and low level
indicates SIM card is detached.
1.8V
3.5.2 USIM2 Pins
The USIM2 pins description is shown in the following table:
Pin Pin Name I/O Reset Value Description Type
48 UIM2_PWR PO
-
USIM2 power supply 1.8V/3V
46 UIM2_RESET O L USIM2 reset 1.8V/3V
44 UIM2_CLK O L USIM2 clock 1.8V/3V
42 UIM2_DATA I/O L USIM2 data, internal pull up(20KΩ) 1.8V/3V
40 SIM2_DETECT I PU
USIM2 card detect, internal 390K
pull-up.
Active high, and high level indicates
SIM card is inserted; and low level
indicates SIM card is detached.
1.8V