GainSpan GS2011M User manual
Release 0.9, 03/18/2014
Copyright © 2014 GainSpan. All rights reserved.
Preliminary
Confidential
GS2011M Low Power WiFi Module
Data Sheet
GS2011M-DS-001211
GainSpan®
802.11b/g/n Ultra-Low Power WiFi®
Series Modules
FCC Communications
Commission (FCC)
Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates uses and can radiate frequency energy and, if not installed and used
in accordance with the instructions may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected
• Consult the dealer or an experienced radio/TV technician for help
FCC Caution: To assure continued compliance, (example - use only shielded interface
cables when connecting to computer or peripheral devices). Any changes or modifications
not expressly approved by the party responsible for compliance could void the user’s
authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
FCC & IC Radiation
Exposure Statement
This equipment complies with FCC & IC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm
between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter. This device intended only for OEM integrators under the following conditions:
1. The antenna must be installed such that 20cm is maintained between the antenna and
users, and
2. The transmitter module may not be co-located with any other transmitter or antenna. As
long as 2 conditions above are met, further transmitter test will not be required.
However, the OEM integrator is still responsible for testing their end-product for any
additional compliance requirements required with this module installed (for example,
digital device emissions, PC peripheral requirements, etc.).
3. digital device emissions, PC peripheral requirements, etc.).
4. digital device emissions, PC peripheral requirements, etc.).
IMPORTANT NOTE: In the event that these conditions cannot be met (for example certain
laptop configurations or co-location with another transmitter), then the FCC & IC
authorizations are no longer considered valid and the FCC & IC IDs cannot be used on the
final product. In these circumstances, the OEM integrator will be responsible for re-evaluating
the end product (including the transmitter) and obtaining separate FCC & IC authorizations.
End Product Labeling: This transmitter module is authorized only for use in device where
the antenna may be installed such that 20cm may be maintained between the antenna and
users (for example access points, routers, wireless ADSL modems, and similar equipment).
the final product must be labeled in a visible area with the corresponding FCC ID number.
IC Certification - Canada The labeling requirements for Industry Canada are similar to those of the FCC. A visible label
on the outside of the final product must display the IC labeling. The user is responsible for
the end product to comply with IC ICES-003 (Unintentional radiators).
English
This device complies with Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions:
1. This device may not cause harmful interference
2. This device must accept any interference received, including received, including
interference that may cause undesired operation of the device.
French
Cet appareil est conforme à Industrie Canada une licence standard RSS exonérés (s). Son
fonctionnement est soumis aux deux conditions suivantes:
1. Cet appareil ne doit pas provoquer d'interférences
2. Cet appareil doit accepter toute interférence reçue, y compris les interférences pouvant
provoquer un fonctionnement indésirable de l'appareil.
Manual Information That Must be Included
The user’s manual for end users must include the following information in a prominent
location.
IMPORTANT NOTE: To comply with FCC & IC RF exposure compliance requirements, the
antenna used for this transmitter must be installed to provide a separation distance of at least
20cm from all persons and must not be co-located or operating in conjunction with any other
antenna or transmitter.
Other Notes: GainSpan modules have been built or under development for near body
exposure applications. The 20cm statement is a standard note because absorption rate
testing (commonly knowns as SAR or Specific absorption rate) is not modularly transferable
for FCC/IC. Thus, if a radio is being used against the body, the end user is still responsible
to test for regulatory near body exposure testing (for USA, please refer to the following):
• FCC Part 1.1037
• FCC Part 2.1091 Mobile Devices
• FCC Part 2.1093 Portable Devices
• FCC Part 15.247 (b) (4)
Copyright Statement This GainSpan manual is owned by GainSpan or its licensors and protected by U.S. and
international copyright laws, conventions, and treaties. Your right to use this manual is
subject to limitations and restrictions imposed by applicable licenses and copyright laws.
Unauthorized reproduction, modification, distribution, display or other use of this manual may
result in criminal and civil penalties.
GainSpan assumes no liability whatsoever, and disclaims any express or implied warranty,
relating to sale and/or use of GainSpan products including liability or warranties relating to
fitness for a particular purpose, merchantability, or infringement of any patent, copyright or
other intellectual property right. GainSpan products are not authorized for use as critical
components in medical, lifesaving, or life-sustaining applications
GainSpan may make changes to specifications and product descriptions at any time, without
notice.
Trademark GainSpan is a registered trademark of GainSpan Corporation. All rights reserved. Other
names and brands may be claimed as the property of others.
Contact Information In an effort to improve the quality of this document, please notify GainSpan Technical
Assistance at 1.408.627.6500 in North America or +91 80 42526503 outside North America.
Web and Email Contact www.gainspan.com
GS2011M-DS-001211, Release 0.9 Confidential Preliminary 5
Table of Contents
Chapter 1 About This Manual ............................................................................................... 7
Revision History ..............................................................................................................7
Audience ......................................................................................................................... 8
Standards ........................................................................................................................ 8
Documentation Conventions ........................................................................................... 8
Documentation .............................................................................................................. 11
Documentation Feedback ....................................................................................... 12
Contacting GainSpan Technical Support ...................................................................... 12
Returning Products to GainSpan .................................................................................. 13
Guidelines for Packing Components for Shipment .................................................. 13
Accessing the GainSpan Portal .................................................................................... 14
Ordering Information ..................................................................................................... 14
Chapter 2 GS2011M Overview .......................................................................................... 15
Product Overview .......................................................................................................... 15
GS2011M Module Product Features ............................................................................. 15
Chapter 3 GS2011M Architecture ...................................................................................... 19
Architecture Description ................................................................................................ 19
Wireless LAN and System Control Subsystem ............................................................. 21
Onboard Antenna / RF Port / Radio ........................................................................ 21
802.11 MAC ....................................................................................................... 21
802.11 PHY ........................................................................................................ 22
RF/Analog .......................................................................................................... 23
Network Services Subsystem .................................................................................. 23
APP CPU ............................................................................................................ 23
Crypto Engine ..................................................................................................... 23
Memory Subsystem ................................................................................................. 23
SRAM ................................................................................................................. 23
ROM ................................................................................................................... 24
OTP ROM ........................................................................................................... 24
Flash Interface .................................................................................................... 24
Clocks ...................................................................................................................... 24
Real Time Clock (RTC) Overview ........................................................................... 25
RTC Main Features ............................................................................................ 25
Real Time Clock Counter ................................................................................... 26
RTC I/O .............................................................................................................. 27
DC_DC_CNTL .................................................................................................... 27
GS2011M Peripherals ............................................................................................. 27
SDIO Interface .................................................................................................... 27
SPI Interface ....................................................................................................... 28
UART Interface ................................................................................................... 28
I2C Interface ....................................................................................................... 28
GPIO .................................................................................................................. 29
ADC .................................................................................................................... 29
GS2011M Low Power WiFi Module Data Sheet
6 Confidential Preliminary GS2011M-DS-001211, Release 0.9
PWM ................................................................................................................... 29
System States ......................................................................................................... 30
Power Supply .......................................................................................................... 33
Chapter 4 Pin-out and Signal Description .......................................................................... 37
GS2011Mxx Device Pin-out .......................................................................................... 37
GS2011Mxx Module Pins Description ..................................................................... 38
GS2011M Pin MUX Function .................................................................................. 42
GS2011M Program and Code Restore Options ...................................................... 44
Chapter 5 Electrical Characteristics ................................................................................... 45
Absolute Maximum Ratings .......................................................................................... 45
Operating Conditions .................................................................................................... 46
Internal 1.8V Regulator ................................................................................................. 46
I/O DC Specifications .................................................................................................... 47
I/O Digital Specifications (Tri-State) Pin Types 4mA, 12mA, and 16mA ................. 47
I/O Digital Specifications for VDDIO=3.0V to 3.6V ............................................. 47
I/O Digital Specifications for VDDIO=2.25V to 2.75V ......................................... 48
I/O Digital Specs for VDDIO=1.7V to 1.98V ....................................................... 49
RTC I/O Specifications ............................................................................................ 50
Power Consumption (Estimate) .................................................................................... 50
802.11 Radio Parameters (Estimate) ............................................................................ 51
ADC Parameters ........................................................................................................... 51
Chapter 6 Package and Layout Guidelines ........................................................................ 53
GS2011Mxx Recommended PCB Footprint and Dimensions ....................................... 53
GS2011M-DS-001211, Release 0.9 Confidential Preliminary 7
Chapter 1 About This Manual
This manual describes the GS2011M Low Power module hardware specification.
Refer to the following sections:
• Revision History, page 7
• Audience, page 8
• Standards, page 8
• Documentation Conventions, page 8
• Documentation, page 11
• Contacting GainSpan Technical Support, page 12
• Returning Products to GainSpan, page 13
• Accessing the GainSpan Portal, page 14
• Ordering Information, page 14
Revision History
This version of the GainSpan GS2011M Low Power WiFi Data Sheet contains the
following new information listed in Table 1, page 7.
Table 1 Revision History
Version Date Remarks
0.6 April 2013 Initial Release
0.7 January 2014
Updated Pinout and Signal description diagram
and table (see GS2011Mxx Device Pin-out,
page 37).
Updated SDIO interface clock frequency (see
GS2100M Module Product Features, page 15).
Updated Power Consumption Estimates and
802.11 Radio Parameter Estimates (see Power
Consumption (Estimate), page 50 and 802.11
Radio Parameters (Estimate), page 51).
0.8 February 2014
Added Notation to describe the GPIO37 when
using SPI interface.. See GS2011Mxx Module
Pins Description, page 38.
0.9 March 2014 Added Regulator Notations in About this
Manual.
About This Manual GS2011M Low Power WiFi Module Data Sheet
Audience
8 Confidential Preliminary GS2011M-DS-001211, Release 0.9
Audience
This manual is designed to help system designers build low power, cost effective, flexible
platforms to add WiFi connectivity for embedded device applications using the GainSpan
GS2011M based module.
Standards
The standards that are supported by the GainSpan GS module series are:
– IEEE 802.11 b/g/n
Documentation Conventions
This manual uses the following text and syntax conventions:
– Special text fonts represent particular commands, keywords, variables, or window
sessions
– Color text indicates cross-reference hyper links to supplemental information
– Command notation indicates commands, subcommands, or command elements
Table 2, page 8, describes the text conventions used in this manual for software procedures
that are explained using the AT command line interface.
Table 2 Document Text Conventions
Convention Type Description
command syntax
monospaced font
This monospaced font represents command strings entered on a
command line and sample source code.
AT XXXX
Proportional font
description
Gives specific details about a parameter.
<Data> DATA
UPPERCASE
Variable parameter
Indicates user input. Enter a value according to the descriptions that
follow. Each uppercased token expands into one or more other token.
lowercase
Keyword parameter
Indicates keywords. Enter values exactly as shown in the command
description.
[ ]
Square brackets
Enclose optional parameters. Choose none; or select one or more an
unlimited number of times each. Do not enter brackets as part of any
command.
[parm1|parm2|parm3]
GS2011M Low Power WiFi Module Data Sheet About This Manual
Documentation Conventions
GS2011M-DS-001211, Release 0.9 Confidential Preliminary 9
?
Question mark
Used with the square brackets to limit the immediately following token
to one occurrence.
<ESC>
Escape sequence
Each escape sequence <ESC> starts with the ASCII character 27 (0x1B).
This is equivalent to the Escape key.
<ESC>C
<CR>
Carriage return Each command is terminated by a carriage return.
<LF>
Line feed Each command is terminated by a line feed.
<CR> <LF>
Carriage return
Line feed
Each response is started with a carriage return and line feed with some
exceptions.
< >
Angle brackets
Enclose a numeric range, endpoints inclusive. Do not enter angle
brackets as part of any command.
<SSID>
=
Equal sign
Separates the variable from explanatory text. Is entered as part of the
command.
PROCESSID = <CID>
.
dot (period)
Allows the repetition of the element that immediately follows it multiple
times. Do not enter as part of the command.
.AA:NN can be expanded to 1:01 1:02 1:03.
A.B.C.D
IP address
IPv4-style address.
10.0.11.123
X:X::X:X
IPv6 IP address
IPv6-style address.
3ffe:506::1
Where the : : represents all 0x for those address components not
explicitly given.
LINE
End-to-line input token
Indicates user input of any string, including spaces. No other parameters
may be entered after input for this token.
string of words
WORD
Single token
Indicates user input of any contiguous string (excluding spaces).
singlewordnospaces
Table 2 Document Text Conventions (Continued)
Convention Type Description
About This Manual GS2011M Low Power WiFi Module Data Sheet
Documentation Conventions
10 Confidential Preliminary GS2011M-DS-001211, Release 0.9
Table 3, page 10, describes the symbol conventions used in this manual for notification and
important instructions.
Table 3 Symbol Conventions
Icon Type Description
Note
Provides helpful suggestions needed in understanding
a feature or references to material not available in the
manual.
Alert Alerts you of potential damage to a program, device,
or system or the loss of data or service.
Caution Cautions you about a situation that could result in
minor or moderate bodily injury if not avoided.
Warning Warns you of a potential situation that could result in
death or serious bodily injury if not avoided.
Electro-Static Discharge
(ESD)
Notifies you to take proper grounding precautions
before handling a product.
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