GPIO
Pin
Assignments
Pin
#
Description
1
Ground
2
GCK0
Dedicated
special
purpose
LVTTL
input
–
Leave
unconnected
3
GPIO[6]
4
GPIO[0]
5
GPIO[7]
6
GPIO[1]
7
GPIO[8]
8
GPIO[2]
9
GPIO[9]
10
GPIO[3]
11
GPIO[10]
12
GPIO[4]
13
GPIO[11]
14
GPIO[5]
The
GT
adapter
has
a
total
of
12
general
purpose
I/O
signals
(GPIO[0]
to
GPIO[11]).
By
default
on
power
up
all
GPIO
signals
are
configured
as
inputs
(direction
control
=
0).
Refer
to
the
serial
API
documentation
for
details
on
configuring
and
using
GPIO
signals.
WARNING:
Take
care
when
connecting
to
GPIO
signals
to
prevent
damage
to
the
serial
card.
Outputs
should
only
be
connected
to
inputs
and
not
other
outputs.
Voltage
limits
as
shown
above
should
not
be
exceeded.
