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GainSpan GS2011M Datasheet

Low power wifi module
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GS2011M Low Power WiFi Module
Data Sheet
GS2011M-DS-001211
®
®
GainSpan
802.11b/g/n Ultra-Low Power WiFi
Series Modules
Release 0.9, 03/18/2014
Copyright © 2014 GainSpan. All rights reserved.

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Summary of Contents for GainSpan GS2011M

  • Page 1 GS2011M Low Power WiFi Module Data Sheet GS2011M-DS-001211 ® ® GainSpan 802.11b/g/n Ultra-Low Power WiFi Series Modules Release 0.9, 03/18/2014 Copyright © 2014 GainSpan. All rights reserved.
  • Page 2 FCC Communications This equipment has been tested and found to comply with the limits for a Class B digital Commission (FCC) device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide Interference Statement 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.
  • Page 3 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.
  • Page 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.

  • Page 5: Table Of Contents

    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 ....................
  • Page 6 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 ....................

  • Page 7: Chapter 1 About This Manual

    • 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 Table 1 Revision History Version...

  • Page 8: Audience

    Audience 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: –...
  • Page 9 GS2011M Low Power WiFi Module Data Sheet About This Manual Documentation Conventions Table 2 Document Text Conventions (Continued) Convention Type Description Used with the square brackets to limit the immediately following token to one occurrence. Question mark Each escape sequence <ESC> starts with the ASCII character 27 (0x1B).
  • Page 10 About This Manual GS2011M Low Power WiFi Module Data Sheet Documentation Conventions Table 3, page 10, describes the symbol conventions used in this manual for notification and important instructions Table 3 Symbol Conventions Icon Type Description Provides helpful suggestions needed in understanding...

  • Page 11: Documentation

    GS2011M Low Power WiFi Module Data Sheet About This Manual Documentation Documentation The GainSpan documentation suite listed in Table 4, page 11 includes the part number, documentation name, and a description of the document. The documents are available from the GainSpan Portal. Refer to Accessing the GainSpan Portal, page 14 for details.

  • Page 12: Documentation Feedback

    About This Manual GS2011M Low Power WiFi Module Data Sheet Contacting GainSpan Technical Support Documentation Feedback We encourage you to provide feedback, comments, and suggestions so that we can improve the documentation. You can send your comments by logging into GainSpan Support Portal.

  • Page 13: Returning Products To Gainspan

    Returning Products to GainSpan Returning Products to GainSpan If a problem cannot be resolved by GainSpan technical support, a Return Material Authorization (RMA) is issued. This number is used to track the returned material at the factory and to return repaired or new components to the customer as needed.

  • Page 14: Accessing The Gainspan Portal

    Accessing the GainSpan Portal To find the latest version of GainSpan documentation supporting the GainSpan product release you are interested in, you can search the GainSpan Portal website by performing the following steps: NOTE: You must first contact GainSpan to set up an account, and obtain a customer user name and password before you can access the GainSpan Portal.

  • Page 15: Chapter 2 Gs2011M Overview

    GS2011M Module Product Features, page 15 Product Overview The GS2011M low power based module provides cost effective, low power, and flexible platform to add WiFi connectivity for embedded devices for a variety of applications, such as wireless sensors and thermostats. It uses GS2000 SoC, which combines ARM Cortex ®...
  • Page 16 GS2011M Overview GS2011M Low Power WiFi Module Data Sheet GS2011M Module Product Features • WiFi Solution: – WiFi security (802.11i): – WPA™ - Enterprise, Personal – WPA2™ - Enterprise, Personal – Vendor EAP Type(s): – EAP-TTLS/MSCHAPv2, PEAPv0/EAP-MSCHAPv2, PEAPv1/EAP-GTC, EAP-FAST, EAP-TLS •...
  • Page 17 GS2011M Low Power WiFi Module Data Sheet GS2011M Overview GS2011M Module Product Features – Compliant to SDIO v2.0 specification – Interface clock frequency up to 40 MHz NOTE: Tested with current test platform up to 33 MHz. – Data transfer modes: 4-bit, 1-bit SDIO, SPI –...
  • Page 18 GS2011M Overview GS2011M Low Power WiFi Module Data Sheet GS2011M Module Product Features • Low-power mode operations – Standby, Sleep, and Deep Sleep • FCC/IC/ETSI/TELEC/WiFi Certification (TBD) Confidential Preliminary GS2011M-DS-001211, Release 0.9...

  • Page 19: Chapter 3 Gs2011M Architecture

    Chapter 3 GS2011M Architecture This chapter describes the GainSpan GS2011M Low Power module architecture. ® • Architecture Description, page 19 • Wireless LAN and System Control Subsystem, page 21 Architecture Description The GainSpan GS2011M module (see Figure 1, page 20) is based on a highly integrated GS2000 ultra low power WiFi System-on-Chip (SoC) that contains the following: •...
  • Page 20 GS2011M Architecture GS2011M Low Power WiFi Module Data Sheet Architecture Description Figure 1 GS2011M Block Diagram Confidential Preliminary GS2011M-DS-001211, Release 0.9...

  • Page 21: Wireless Lan And System Control Subsystem

    GS2011M Low Power WiFi Module Data Sheet GS2011M Architecture Wireless LAN and System Control Subsystem Wireless LAN and System Control Subsystem The WLAN CPU subsystem consists of the WLAN CPU, its ROM, RAM, 802.11 b/g/n MAC/PHY, and peripherals. This CPU is intended primarily to implement the 802.11 MAC protocols.

  • Page 22: 802.11 Phy

    Formation/Invitation, Client Power Save, WPS-PIN/Push Button 802.11 PHY The 802.11 PHY implements all the standard required functionality and GainSpan specific functionality for 802.11b/g/n protocols. It also implements the Radar detection functionality to support 802.11h. The PHY implements the complete baseband Tx and Rx pipeline.

  • Page 23: Rf/Analog

    GS2011M Low Power WiFi Module Data Sheet GS2011M Architecture Wireless LAN and System Control Subsystem RF/Analog The RF/Analog is a single RF transceiver for IEEE 802.11b/g/n (WLAN). The RF Interface block provides the access to the RF and analog control and status to the CPU. This block is accessible only from the WLAN CPU.

  • Page 24: Rom

    Flash memory on the SoC. Any ROM patch code and new application code must reside in the on-module Flash device of the GS2011M module. Flash access from the two CPUs are independent. The APP CPU is considered the system Master and the code running on this CPU is required to initialize the overall chip and common interfaces.

  • Page 25: Real Time Clock (Rtc) Overview

    Three others (RTC_IO) which can be programmed to be either – Maximum of two wakeup counters to generate periodic output (32-bit) – Alarm inputs to wake up the GS2011M module from its sleep states (deep-sleep/standby) • Startup control counters with HW and SW override registers •...

  • Page 26: Real Time Clock Counter

    GS2011M Architecture GS2011M Low Power WiFi Module Data Sheet Wireless LAN and System Control Subsystem substituted for the RC oscillator under software control. In normal operation the RTC is always powered up, even in the Power up state. The dc_dc_cntl programmable counter is 48-bits and provides up to 272 years worth of standby duration.

  • Page 27: Rtc I/O

    GS2011M Low Power WiFi Module Data Sheet GS2011M Architecture Wireless LAN and System Control Subsystem This counter is automatically reset by power-on-reset. This counter wraps around (returns to “all-0” once it has reached the highest possible “all-1” value). RTC I/O There are three (3) RTC I/O (0, 1,2) that can be used to control external devices, such as sensors or wake up the module based on external events or devices.

  • Page 28: Spi Interface

    GS2011M Architecture GS2011M Low Power WiFi Module Data Sheet Wireless LAN and System Control Subsystem • Allows card to interrupt host in SPI, 1 and 4 bit SD modes • Read and Writes using 4 parallel data lines • Cyclic Redundancy Check CRC7 for command and CRC16 for data integrity-CRC checking optional in SPI mode •...

  • Page 29: Gpio

    GS2011M Low Power WiFi Module Data Sheet GS2011M Architecture Wireless LAN and System Control Subsystem GPIO The GPIO block provides programmable inputs and outputs that can be controlled from the CPU SW through an APB interface. Any number of inputs can be configured as an interrupt source.

  • Page 30: System States

    The system states of the GS2011Mxx system are as follows: Power OFF: No power source connected to the system. Standby: In the standby state, only the RTC portion of the GS2011M is powered from the VRTC pin. The other power supplies are turned off by the DC_DC_CNTL pin being low.
  • Page 31 GS2011M Low Power WiFi Module Data Sheet GS2011M Architecture Wireless LAN and System Control Subsystem In standby state, the 32.768KHz oscillator keeps running and only the RTC RAM retains the state (how many banks retain their state is SW configurable). SRAM, CPUs and I/Os are all in OFF state, as there is no 1.8V and no VDDIO being supplied to the...
  • Page 32 The following are not system states, but are related design notes: Power Control: The GS2011M was designed with the intent that power to the non-RTC portions of the chip be controlled from the DC_DC_CNTL signal. In applications where it is preferred that an external host control the power, this is OK if ALL power, including VRTC power, is turned on and off by the external host.

  • Page 33: Power Supply

    GS2011M Low Power WiFi Module Data Sheet GS2011M Architecture Wireless LAN and System Control Subsystem Power Supply This section shows various application power supply connections. Figure 4, page 33 shows the GS2011Mxx power supply connection and Figure 5, page 34 shows the GS2011Mxx in battery powered with optimized active mode.
  • Page 34 GS2011M Architecture GS2011M Low Power WiFi Module Data Sheet Wireless LAN and System Control Subsystem Figure 5 GS2011Mxx Battery Powered with Optimized Active Mode Notes: 1. This connection applies for designs using GS2011MI module and want to optimize active mode current consumption while still supporting standby state of...
  • Page 35 GS2011M Low Power WiFi Module Data Sheet GS2011M Architecture Wireless LAN and System Control Subsystem Figure 6 GS2011MIx Battery Powered with Optimized Standby Support Notes: 1. This connection applies for designs (typically battery operated) using GS2011MI module and want to optimized standby (lowest current consumption) state of the module.
  • Page 36 GS2011M Architecture GS2011M Low Power WiFi Module Data Sheet Wireless LAN and System Control Subsystem - This page intentionally left blank - Confidential Preliminary GS2011M-DS-001211, Release 0.9...

  • Page 37: Chapter 4 Pin-Out And Signal Description

    Chapter 4 Pin-out and Signal Description This chapter describes the GainSpan GS2011M Low Power module architecture. ® • GS2011Mxx Device Pin-out, page 37 GS2011Mxx Device Pin-out Figure 7, page 37 shows the GS2011Mxx device pin-out diagram. Figure 7 GS2011Mxx Device Pin-out Diagram (Module Top View) GS2011M-DS-001211, Release 0.9...

  • Page 38: Gs2011Mxx Module Pins Description

    Pin-out and Signal Description GS2011M Low Power WiFi Module Data Sheet GS2011Mxx Device Pin-out GS2011Mxx Module Pins Description Table 7, page 38 describes the GS2011Mxx module pin signal description. Table 7 GS2011Mxx Module Pin Signal Description Pins Name Voltage Internal Bias after...
  • Page 39 GS2011M Low Power WiFi Module Data Sheet Pin-out and Signal Description GS2011Mxx Device Pin-out Table 7 GS2011Mxx Module Pin Signal Description (Continued) Pins Name Voltage Internal Bias after Drive Signal State Description Domain Hardware Reset Strength (mA) GPIO/ Serial Peripheral...
  • Page 40 Pin-out and Signal Description GS2011M Low Power WiFi Module Data Sheet GS2011Mxx Device Pin-out Table 7 GS2011Mxx Module Pin Signal Description (Continued) Pins Name Voltage Internal Bias after Drive Signal State Description Domain Hardware Reset Strength (mA) GPIO26/ Digital GPIO/UART1Clear to Send...
  • Page 41 2. This pin enables programming of the module. If UART1_RTS (GPIO27) is high during reset or power on then the GS2011M will wait for Flash download via UART0 or SPI0 interface. Route this pin on the base board so it can be pulled up to VDDIO for programming the module.

  • Page 42: Gs2011M Pin Mux Function

    GS2011M Low Power WiFi Module Data Sheet GS2011Mxx Device Pin-out GS2011M Pin MUX Function The GS2011M pins have multiple functions that can be selected using MUX function by software. Each pin has an independent MUX select register. Table 8, page 42 shows the various MUX functions for each pin.
  • Page 43 GS2011M Low Power WiFi Module Data Sheet Pin-out and Signal Description GS2011Mxx Device Pin-out Table 8 GS2011M Pin MUX Description (Continued) Pin# Pin Name Mux3 Mux4 Mux5 Mux6 Mux7 Comments VIN_3V3 Includes Flash, PA, ADC, VDDIO, REG EN_1V8 VDDIO gpio26/uart1_cts...

  • Page 44: Gs2011M Program And Code Restore Options

    The respective GPIO pins are sampled at reset by device and depending on the values seen on these pins goes into the appropriate mode. Code for the GS2011M resides on the internal flash of the module and up to two back-up copies could be stored in flash.

  • Page 45: Chapter 5 Electrical Characteristics

    Chapter 5 Electrical Characteristics This chapter describes the GainSpan GS2011M electrical characteristics. ® • Absolute Maximum Ratings, page 45 • Operating Conditions, page 46 • Internal 1.8V Regulator, page 46 • I/O DC Specifications, page 47 • Power Consumption (Estimate), page 50 •...

  • Page 46: Operating Conditions

    Electrical Characteristics GS2011M Low Power WiFi Module Data Sheet Operating Conditions Operating Conditions Table 11, page 46 lists the operating conditions of the GS2011Mxx module. Table 11 Operating Conditions Parameter Symbol Minimum Typical Maximum Unit Extended Temperature Range RTC Power Supply VRTC...

  • Page 47: I/O Dc Specifications

    GS2011M Low Power WiFi Module Data Sheet Electrical Characteristics I/O DC Specifications I/O DC Specifications I/O Digital Specifications (Tri-State) Pin Types 4mA, 12mA, and 16mA The specifications for these I/O’s are given over 3 different voltage ranges: 3.0V to 3.6V, 2.25V to 2.75V, and 1.7V to 1.98V.

  • Page 48: I/O Digital Specifications For Vddio=2.25V To 2.75V

    Electrical Characteristics GS2011M Low Power WiFi Module Data Sheet I/O DC Specifications I/O Digital Specifications for VDDIO=2.25V to 2.75V Table 14, page 48 lists the parameters for I/O digital specification for VDDIO 2.25V to 2.75V for Pin Types 4mA, 12mA, and 16mA.

  • Page 49: I/O Digital Specs For Vddio=1.7V To 1.98V

    GS2011M Low Power WiFi Module Data Sheet Electrical Characteristics I/O DC Specifications I/O Digital Specs for VDDIO=1.7V to 1.98V Table 15, page 49 lists the parameters for I/O digital specification for VDDIO 1.7V to 1.98V for Pin Types 4mA, 12mA, and 16mA.

  • Page 50: Rtc I/O Specifications

    Electrical Characteristics GS2011M Low Power WiFi Module Data Sheet Power Consumption (Estimate) RTC I/O Specifications Table 16, page 50 lists the RTC I/O parameters. Table 16 RTC I/O Parameters Parameter Symbol Minimum Typical Maximum Unit Note Supply Voltage Input Low 0.3*V...

  • Page 51: 802.11 Radio Parameters (Estimate)

    GS2011M Low Power WiFi Module Data Sheet Electrical Characteristics 802.11 Radio Parameters (Estimate) 802.11 Radio Parameters (Estimate) Table 18, page 51 lists the 802.11 Radio parameters (estimate). Test conditions are: VIN_3V3=VDDIO=VRTC=3.3V Temp=25 Table 18 802.11 Radio Parameters Parameter Minimum Typical...
  • Page 52 Electrical Characteristics GS2011M Low Power WiFi Module Data Sheet ADC Parameters Table 19 ADC Parameters (Continued) Parameter Minimum Typical Maximum Unit Notes =2Mbps, internal μA reference (Reference Buffer on) 3.3V =32KHz, internal μA reference (Reference Buffer on) 3.3V Active Current...

  • Page 53: Chapter 6 Package And Layout Guidelines

    Chapter 6 Package and Layout Guidelines This chapter describes the GainSpan GS2011M package and layout guidelines. ® • GS2011Mxx Recommended PCB Footprint and Dimensions, page 53 GS2011Mxx Recommended PCB Footprint and Dimensions Figure 8, page 53 shows the GS2011MIx Module PCB Footprint.
  • Page 54 Package and Layout Guidelines GS2011M Low Power WiFi Module Data Sheet GS2011Mxx Recommended PCB Footprint and Dimensions Figure 9 GS2011MIx Module Dimensions (in inches) Notes: 1. All Dimensions are in inches. Tolerances shall be + 0.010 inches. 2. Absolutely no metal trace or ground layer underneath this area. If using PCB antenna, it is recommended to have only air under this area.

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