User's Manual

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FIBOCOM FM150-NA User Manual Page 56 of 75
Figure 3-19 LED Driving Circuit
Note:
Module internal rated current sink <10mA.The resistance of LED current-limiting resistor is
selected according to the driving voltage and the driving current.
3.6.2 WOWWAN#
The WOWWAN# signal is used to wake the Host (AP) when there comes the data request. The definition
of WOWWAN# signal is as follows:
Operating Mode WOWWAN# Signal
SMS or data requests Pull low 1s then pull high (pulse signal).
Idle/Sleep High level
The WOWWAN# timing is shown in Figure 3-20:
WOWWAN #
1S
Idle/Sleep
Call/SMS/Data
Idle/Sleep
Status
Figure 3-20 WOWWAN# Timing
3.7 Interrupt Control
The FM150 module provides 3 interrupt signals, and the pin definition is as follows:
Pin Pin Name I/O
Reset
Value
Pin Description Type
8 W_DISABLE1# I PU
Enable/Disable RF network
1.8V/3.3V
25 DPR I PU
Body SAR detection
1.8V/3.3V
26 W_DISABLE2# I PU
GNSS Disable signal.Reserved
1.8V/3.3V
3.7.1 W_DISABLE
The module provides a hardware pin to enable/disable WWAN RF function, need AT+GTFMODE=1 to
enable this pin and the function can also be controlled by the AT command. The module enters the Flight
mode after the RF function is disabled. The definition of W_DISABLE1# signal is as below table: