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FIBOCOM FG621-LA Series Hardware Guide
Page 40 of 57
Pin Name
I/O
Pin#
Description
Instructions for Use
Port 2
chip by default
GPIO_3
IO
159
General-Purpose
I/O
Port 3
Input pull-up inside the chip
by default
GPIO_4
IO
161
General-Purpose
I/O
Port 4
Input pull-down inside the
chip by default
GPIO_5
IO
172
General-Purpose
I/O
Port 5
Input pull-down inside the
chip by default