GS2011M Low Power WiFi Module Data Sheet GS2011M-DS-001211 y r l a a n i i nt il mde e fi r P on C GainSpan® 802.11b/g/n Ultra-Low Power WiFi® Series Modules Release 0.9, 03/18/2014 Copyright © 2014 GainSpan. All rights reserved.
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.
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.
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.
Table of Contents Chapter 1 About This Manual ............................................................................................... 7 Revision History .............................................................................................................. 7 Audience ......................................................................................................................... 8 Standards ..............................................................................................
GS2011M Low Power WiFi Module Data Sheet PWM ................................................................................................................... 29 System States ......................................................................................................... 30 Power Supply .......................................................................................................... 33 Chapter 4 Pin-out and Signal Description ...........................................................
Chapter 1 About This Manual This manual describes the GS2011M Low Power module hardware specification.
About This Manual Audience GS2011M Low Power WiFi Module Data Sheet 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.
GS2011M Low Power WiFi Module Data Sheet About This Manual Documentation Conventions Table 2 Document Text Conventions (Continued) Convention Type ? Question mark Escape sequence Description Used with the square brackets to limit the immediately following token to one occurrence. Each escape sequence starts with the ASCII character 27 (0x1B). This is equivalent to the Escape key. C Carriage return Each command is terminated by a carriage return.
About This Manual Documentation Conventions GS2011M Low Power WiFi Module Data Sheet Table 3, page 10, describes the symbol conventions used in this manual for notification and important instructions. Table 3 Symbol Conventions Icon 10 Confidential 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.
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.
About This Manual Contacting GainSpan Technical Support GS2011M Low Power WiFi Module Data Sheet 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.
GS2011M Low Power WiFi Module Data Sheet About This Manual 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. NOTE: Do not return any components to GainSpan Corporation unless you have first obtained an RMA number.
About This Manual Accessing the GainSpan Portal GS2011M Low Power WiFi Module Data Sheet 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. 1. Go to the GainSpan Support Portal website. 2.
Chapter 2 GS2011M Overview This chapter describes the GainSpan® GS2011M low power module hardware specification overview. • Product Overview, page 15 • 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 M3-based processors with a 802.
GS2011M Overview GS2011M Module Product Features • GS2011M Low Power WiFi Module Data Sheet WiFi Solution: – WiFi security (802.11i): – WPA™ - Enterprise, Personal – WPA2™ - Enterprise, Personal – Vendor EAP Type(s): – • • Hardware-accelerated high-throughput AES and RC4 encryption/decryption engines for WEP, WPA/WPA2 (AES-CCMP and TKIP).
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.
GS2011M Overview GS2011M Module Product Features • Low-power mode operations – • 18 Confidential GS2011M Low Power WiFi Module Data Sheet Standby, Sleep, and Deep Sleep FCC/IC/ETSI/TELEC/WiFi Certification (TBD) Preliminary GS2011M-DS-001211, Release 0.
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: • The GS2000 SoC contains two ARM Cortex M3 CPUs, a compatible 802.
GS2011M Architecture Architecture Description GS2011M Low Power WiFi Module Data Sheet Figure 1 GS2011M Block Diagram 20 Confidential Preliminary GS2011M-DS-001211, Release 0.
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. The CPU system has GPIO, Timer, and Watchdog for general use. A UART is provided as a debug interface. A SPI interface is provided for specific application needs.
GS2011M Architecture Wireless LAN and System Control Subsystem GS2011M Low Power WiFi Module Data Sheet • RTS/CTS, CTS-to-self frame sequences and SIFS • Client and AP modes support • Encryption support including: AES-CCMP, legacy WPA-TKIP, legacy WEP ciphers and key management • WiFi Protected Setup 2.0 (WPS2.0) including both PIN and push button options • 802.
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. It implements registers to write static control words. It provides read only register interface to read static status.
GS2011M Architecture Wireless LAN and System Control Subsystem GS2011M Low Power WiFi Module Data Sheet At any time, any of these memory blocks can be assigned to one of the CPU subsystem. These should be set up by the APP CPU SW at initialization time. The assignment is not intended to change during operation and there is no HW interlock to avoid switching in the middle of a memory transaction.
GS2011M Low Power WiFi Module Data Sheet GS2011M Architecture Wireless LAN and System Control Subsystem Intermediate modes of operation, in which high speed clocks are active but some modules are inactive, are obtained by gating the clock signal to different subsystems. The clock control blocks within the device are responsible for generation, selection and gating of the clocked used in the module to reduce power consumption in various power states.
GS2011M Architecture Wireless LAN and System Control Subsystem GS2011M Low Power WiFi Module Data Sheet 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.
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. DC_DC_CNTL During RTC Power-on-Reset (e.g.
GS2011M Architecture Wireless LAN and System Control Subsystem GS2011M Low Power WiFi Module Data Sheet • 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 • Programmable through a standard AHB Slave interface • Writing of the I/O reset bit in CCCR register generates an active low reset output synchronized to AHB Clock domain • Card res
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. The interrupts can be generated based on the level or the transition of a pin. At reset, all GPIO lines defaults to inputs. Each pin can be configured as input or output from SW control.
GS2011M Architecture Wireless LAN and System Control Subsystem GS2011M Low Power WiFi Module Data Sheet System States Figure 3, page 30 shows the power management/clock states of the GS2011Mxx system. Figure 3 GS2011Mxx 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.
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 GS2011M device. This is the lowest-power-consumption state.
GS2011M Architecture Wireless LAN and System Control Subsystem GS2011M Low Power WiFi Module Data Sheet NOTE: For the above power states, software controls which clocks stay turned on in each of the three states. 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.
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. Figure 4 GS2011Mxx Always ON Power Supply Connection Notes: 1. Always ON is obtained by trying EN_1V8 to 1 which is the enable for the 1.8V voltage regulator. 2.
GS2011M Architecture Wireless LAN and System Control Subsystem GS2011M Low Power WiFi Module Data Sheet 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 the module (see Figure 6, page 35). In this connection it is important to note the following: 2.
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. In this connection it is important to note the following: 2. Input voltage to VRTC must always be ON to keep the RTC powered so that the 32KHz crystal is running.
GS2011M Architecture Wireless LAN and System Control Subsystem GS2011M Low Power WiFi Module Data Sheet - This page intentionally left blank - 36 Confidential Preliminary GS2011M-DS-001211, Release 0.
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.
Pin-out and Signal Description GS2011Mxx Device Pin-out GS2011M Low Power WiFi Module Data Sheet GS2011Mxx Module Pins Description Table 7, page 38 describes the GS2011Mxx module pin signal description.
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 Domain Internal Bias after Hardware Reset Drive Strength (mA) Signal State Description 4 GPIO/ Serial Peripheral Digital Interface 1 Chip Select_1 Input/Output (Active Low) Pull-down 4 GPIO/Internal RTC Clock Digital Circuitry Test Point. This Input/Output pin is used for Code Restore.
Pin-out and Signal Description GS2011Mxx Device Pin-out GS2011M Low Power WiFi Module Data Sheet Table 7 GS2011Mxx Module Pin Signal Description (Continued) Pins Name 35 GPIO26/ UART1_CTS 36 GPIO27/ UART1_RTS 37 Voltage Domain Internal Bias after Hardware Reset Drive Strength (mA) Signal State Description 4 Digital GPIO/UART1Clear to Send Input/Output input (see Note 6) VDDIO Pull-down (see Note 2) 4 GPIO/UART1 1 Request to Digital Send Output (see Note 6).
GS2011M Low Power WiFi Module Data Sheet Pin-out and Signal Description GS2011Mxx Device Pin-out Notes: 1. Pins with drive strength 4, 12, and 16 have one pull resistor (either up or down, not both), which is enabled at reset. RTC_IO pins have both pull_up and pull_down resisters. The RTC_IO pull down resisters are enabled at reset for non DC_DC_CNTL pins. 2. This pin enables programming of the module.
Pin-out and Signal Description GS2011Mxx Device Pin-out GS2011M Low Power WiFi Module Data Sheet 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. All pins are GPIO inputs at reset. For pins that are inputs to functional blocks only one pin may be assigned to any input function.
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 31 VIN_3V3 32 GND 33 EN_1V8 34 VDDIO 35 gpio26/uart1_cts uart1_cts wuart_cts i2s_din spi1_cs_n_13 wssp_clk 36 gpio27/uart1_rts uart1_rts wuart_rts i2s_dout uart1_tx 37 gpio3/uart1_rx uart1_rx wuart_rx i2s_bitclk spi1_cs_n_14 wsip_din 38 gpio32/sdio_dat2/uart1_tx sdio_data1 wuart_tx uart1_
Pin-out and Signal Description GS2011Mxx Device Pin-out GS2011M Low Power WiFi Module Data Sheet GS2011M Program and Code Restore Options Table 9, page 44 describes the options available for device program mode and code restore capabilities. 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.
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 • 802.
Electrical Characteristics Operating Conditions GS2011M Low Power WiFi Module Data Sheet Operating Conditions Table 11, page 46 lists the operating conditions of the GS2011Mxx module. Table 11 Operating Conditions Parameter Symbol Minimum Extended T Temperature Range A -40 RTC Power Supply VRTC 1.6 I/O Supply Voltage VDDIO Single Supply Port GS2011MIx VIN_3V3 Signal Pin Voltage1 VI 2 Maximum Unit +85 oC 3.3 3.6 V 1.7 3.3 3.6 V 2.7 3.3 3.6 V Voltage Domain V 6.
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. I/O Digital Specifications for VDDIO=3.0V to 3.6V Table 13, page 47 lists the parameters for I/O digital specification for VDDIO 3.0V to 3.6V for Pin Types 4mA, 12mA, and 16mA.
Electrical Characteristics I/O DC Specifications GS2011M Low Power WiFi Module Data Sheet 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. NOTE: The table below is an estimate. It is provided to give a rough idea of the behavior at intermediate VDDIO voltages. Table 14 I/O Digital Parameters for VDDIO = 2.25V to 2.
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. Table 15 I/O Digital Parameters for VDDIO = 1.7V to 1.98V Parameter I/O Supply Voltage Symbol VDDIO Minimum 1.7 Typical 1.8 Maximum Unit 1.98 V V Note Input Low Voltage VIL -0.3 0.631 Input High Voltage VIH 1.17 3.
Electrical Characteristics Power Consumption (Estimate) GS2011M Low Power WiFi Module Data Sheet RTC I/O Specifications Table 16, page 50 lists the RTC I/O parameters. Table 16 RTC I/O Parameters Parameter Symbol Supply Voltage Minimum Typical 1.6 Input Low Voltage VIL Input High Voltage VIH Maximum Unit 3.6 V 0.3*VDD V 0l7*VDD Note V Input Leakage IL Current 0.1 μA Pullup Current IPU 1 μA Pulldown Current IPU 1 μA Output Low Voltage VOL Output High Voltage VOHJ 0.4 VDD-0.
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=25oC. Table 18 802.
Electrical Characteristics ADC Parameters GS2011M Low Power WiFi Module Data Sheet Table 19 ADC Parameters (Continued) Parameter Minimum Typical Maximum 800 550 Unit μA FS=2Mbps, internal reference (Reference Buffer on) 3.3V μA FS=32KHz, internal reference (Reference Buffer on) 3.3V μA FS=2Mbps, External reference (Reference Buffer off) 3.3V μA FS=32KHz, internal reference (Reference Buffer off) 3.
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. Figure 9, page 54 shows the GS2011MIx Module Dimensions. Figure 8 GS2011MIx Module Recommended PCB Footprint (in inches) GS2011M-DS-001211, Release 0.
Package and Layout Guidelines GS2011Mxx Recommended PCB Footprint and Dimensions GS2011M Low Power WiFi Module Data Sheet 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. Hang antenna over edge of base board or cut notch in base board. 3.
