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FIBOCOM NL668-EAU-MiniPCIe-10 Hardware User Manual
Page 22 of 56
3.3 Control Signal
The module provides one control signal for reset operation. The pin definition is as follows.
Pin Name
I/O Pin num
Description
RESET_N
I
22
When the module is in operating mode, pull down RESET_N pin
700ms~1s, and then pull it high, the module is reset.
Table 3-6 Reset Control Signal
3.3.1 Module Reset
The module can reset by hardware and AT command.
Reset mode
Reset method
Hardware reset
Pull down RESET_N pin 700ms~1s, and then release it
AT command reset
AT+RESET
Table 3-7 Module Reset
3.3.1.1 Reset Circuit
The reference circuit is as follows. Customers can control the RESET_N pin using the OC/OD driver
circuit or button.
Figure 3-4 OC/OD Reset Reference Circuit
