TWR
‐
WIFI
‐
RS2101
User’s
Manual
Page
4
of
9
2
Reference
Documents
The
documents
listed
below
should
be
referenced
for
more
information
on
the
Freescale
Tower
system
and
the
TWR
‐
WIFI
‐
RS2101.
Refer
to
http://www.freesale.com/tower
for
the
latest
revision
of
all
Tower
documentation.
•
TWR
‐
WIFI
‐
RS2101
User
Manual
•
TWR
‐
WIFI
‐
RS2101
Quick
Start
Guide
•
TWR
‐
WIFI
‐
RS2101
Lab
Tutorial
•
RS9110
‐
N
‐
11
‐
21
Product
Brief
•
RS9110
‐
N
‐
11
‐
21
Wi
‐
Fi
Module
Abridged
Datasheet
3
Hardware
Features
This
section
provides
more
details
about
the
features
and
functionality
of
the
TWR
‐
WIFI
‐
RS2101.
3.1
RS9110
N
11
21
Module
The
RS9110
‐
N
‐
11
‐
21
module
from
Redpine's
Connect
‐
io
‐
n™
family
of
products
is
a
complete
IEEE
802.11bgn
Wi
‐
Fi
client
device
with
a
standard
serial
or
SPI
interface
to
a
host
processor
or
data
source.
It
integrates
a
MAC,
Baseband
processor,
RF
transceiver
with
power
amplifier,
a
frequency
reference,
an
antenna,
and
all
WLAN
protocol
and
configuration
functionality
in
embedded
firmware
to
provide
a
self
‐
contained
802.11n
WLAN
solution
for
a
variety
of
applications.
No
WLAN
driver
functionality
is
required
on
the
host
processor.
Based
on
the
Redpine
Signals
RS9110
SoC
which
includes
an
embedded
processor,
it
is
designed
to
provide
standards
compliant
wireless
connectivity
to
devices
and
systems
that
have
a
serial
port
and
implement
a
TCP/IP
stack.
As
a
wireless
serial
modem,
the
RS9110
‐
N
‐
11
‐
21
handles
SLIP
packets
and
accepts
AT
commands
for
configuration
,
enabling
a
variety
of
M2M
applications
at
low
cost
and
small
footprint.
It
uniquely
provides
connectivity
in
the
single
stream
802.11n
mode,
preserving
overall
network
throughput
in
the
emerging
enterprise
environments.
For
the
TWR
‐
WIFI
‐
RS2101
Tower
Peripheral
Module,
the
RS9110
‐
N
‐
11
‐
21
module
communicates
with
the
MCU
through
an
SPI.
Figure
2
shows
a
functional
block
diagram
of
the
RS9110
‐
N
‐
11
‐
21module.
Refer
to
the
RS9110
‐
N
‐
11
‐
21
Wi
‐
Fi
Module
Abridged
Datasheet
for
more
information.
