Embedian, Inc.
82
SMARC-iMX8MM Computer on Module User’s Manual
v. 1.2
2.1.17.
GPIOs
The
SMARC
‐
iMX8MM
module
supports
12
GPIOs,
as
defined
by
the
SMARC
specification.
Specific
alternate
functions
are
assigned
to
some
GPIOs
such
as
PWM
/
Tachometer
capability,
Camera
support,
CAN
Error
Signaling
and
HD
Audio
reset.
All
pins
are
capable
of
bi
‐
directional
operation.
A
default
direction
of
operation
is
assigned,
with
half
of
them
(
GPIO0
–
GPIO5
)
for
use
as
outputs
and
the
remainder
(
GPIO6
–
GPIO11
)
as
inputs
by
SMARC
hardware
specification.
