User's Manual

9/13 Rev1.2
6. GPIOs
MESSI-V M2 has various software-controlled general purpose IO (GPIO) pins which are
listed below. The user can use these GPIOs for any general purpose their design calls for.
If the GPIO is not in use, it is recommended to leave the pin as floating.
Pin NO.
Pin name
Description
8
GPIO4
3.3V General Purpose I/O
35
GPIO20
1.8V General Purpose I/O
31
GPIO19
1.8V General Purpose I/O
29
GPIO18
1.8V General Purpose I/O
20
GPIO11
1.8V General Purpose I/O
22
GPIO10
1.8V General Purpose I/O
24
GPIO9
1.8V General Purpose I/O
26
GPIO8
1.8V General Purpose I/O
28
GPIO12
1.8V General Purpose I/O
40
GPIO13
1.8V General Purpose I/O
42
GPIO14
1.8V General Purpose I/O
44
GPIO15
1.8V General Purpose I/O
46
GPIO16
1.8V General Purpose I/O