GS2101M Low Power WiFi Module Data Sheet GS2101M-DS-001270 GainSpan® 802.11b/g/n Low Power WiFi® Series Modules Release 1.0, 05/19/2016 Copyright © 2016 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 GS2101M Overview ........................................................................................................ 19 1.1 Product Overview ..................................................................................................................19 1.2 GS2101M Module Product Features .....................................................................................19 Chapter 2 GS2101M Architecture ................................................................
GS2101M Low Power WiFi Module Data Sheet 4.4 Power Consumption ..............................................................................................................47 4.5 802.11 Radio Parameters ......................................................................................................48 4.6 Sigma Delta ADC Parameters ...............................................................................................49 Chapter 5 Package and Layout Guidelines ................................
About This Manual This manual describes the GS2101M Low Power module hardware specification. Refer to the following sections: • Revision History, page 8 • Audience, page 8 • Standards, page 8 • Documentation Conventions, page 9 • Documentation, page 12 • Contacting GainSpan Technical Support, page 14 • Returning Products to GainSpan, page 15 • Accessing the GainSpan Portal, page 16 • Ordering Information, page 17 GS2101M-DS-001270, Release 1.
GS2101M Low Power WiFi Module Data Sheet Revision History This version of the GainSpan GS2101M Low Power WiFi Data Sheet contains the following new information listed in Table 1, page 8. Table 1 Revision History Version 1.0 Date May 2016 Remarks Initial release. 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 GS2101M based module.
GS2101M Low Power WiFi Module Data Sheet 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 9, describes the text conventions used in this manual for software procedures that are explained using the AT command lin
GS2101M Low Power WiFi Module Data Sheet Table 2 Document Text Conventions (Continued) Convention Type <> Angle brackets Description Enclose a numeric range, endpoints inclusive. Do not enter angle brackets as part of any command. = Equal sign Separates the variable from explanatory text. Is entered as part of the command. PROCESSID = . dot (period) Allows the repetition of the element that immediately follows it multiple times. Do not enter as part of the command. .
GS2101M Low Power WiFi Module Data Sheet Table 3, page 11, 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.
GS2101M Low Power WiFi Module Data Sheet Documentation The GainSpan documentation suite listed in Table 4, page 12 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 16 for details.
GS2101M Low Power WiFi Module Data Sheet Table 4 Documentation List (Continued) Part Number GS2011MxxS-DS-001214 Document Title Description Provides information to help WiFi GainSpan GS2011MxxS Low Power system designers to build systems using WiFi Module Data Sheet GainSpan GS2011MxxS module and develop wireless applications.
GS2101M 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.
GS2101M Low Power WiFi Module Data Sheet 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. GainSpan reserves the right to refuse shipments that do not have an RMA.
GS2101M 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. Log in using your customer Email and Password.
GS2101M Low Power WiFi Module Data Sheet Ordering Information To order GainSpan’s GS2101Mxx low power module contact a GainSpan Sales/Distributor Representative. Table 6, page 17 lists the GainSpan device information. Table 6 GS2101Mxx Ordering Information Device Description Ordering Number Revision Low power module with on-board antenna GS2101MIP 1.0 Low power module with external antenna 1.0 GS2101MIE NOTE: Modules ship with test code ONLY.
GS2101M Low Power WiFi Module Data Sheet - This page intentionally left blank - 18 Confidential GS2101M-DS-001270, Release 1.
Chapter 1 GS2101M Overview This chapter describes the GainSpan® GS2101M low power module hardware specification overview. • Product Overview, page 19 • GS2101M Module Product Features, page 19 1.1 Product Overview The GS2101M based modules provide 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 the GS2000 SoC, which combines ARM® Cortex M3-based processors with a 802.
GS2101M Overview GS2101M Module Product Features • GS2101M 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).
GS2101M Low Power WiFi Module Data Sheet • GS2101M Overview GS2101M Module Product Features Interfaces: • SDIO: – Compliant to SDIO v2.0 specification – Interface clock frequency up to 40 MHz NOTE: Tested with current test platform up to 33 MHz.
GS2101M Overview GS2101M Module Product Features • Power supply monitoring capability • Low-power mode operations: – • 22 GS2101M Low Power WiFi Module Data Sheet Standby, Sleep, and Deep Sleep FCC/IC/ETSI/TELEC/WiFi Certification Confidential GS2101M-DS-001270, Release 1.
Chapter 2 GS2101M Architecture This chapter describes the GainSpan® GS2101M Low Power module architecture. • Architecture Description, page 23 2.1 Architecture Description The GainSpan GS2101M module (see Figure 1, page 24) 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 802.11 radio, security, on-chip memory, and variety of peripherals in a single package.
GS2101M Architecture Architecture Description GS2101M Low Power WiFi Module Data Sheet Figure 1 GS2101M Block Diagram 24 Confidential GS2101M-DS-001270, Release 1.
GS2101M Low Power WiFi Module Data Sheet GS2101M Architecture Architecture Description 2.1.1 Wireless LAN and System Control Subsystem The WLAN CPU subsystem consists of the WLAN CPU, its ROM, RAM, 802.11b/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.
GS2101M Architecture Architecture Description GS2101M Low Power WiFi Module Data Sheet • 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 • 802.11e based QoS (including WMM, WMM-PS) • WiFi Direct with concurrent mode, including Device/Service Discovery, Group Formation/Invitation, Client Power Save, WPS-PIN/Push Button 2.1.2.2 802.
GS2101M Low Power WiFi Module Data Sheet GS2101M Architecture Architecture Description 2.1.3 Network Services Subsystem 2.1.3.1 APP CPU The Network services subsystem consists of an APP CPU which is based on an ARM CORTEX M3 core. It incorporates an AHB interface and a JTAG debug interface. The network RTOS, network stack, and customer application code run on this CPU. 2.1.3.
GS2101M Architecture Architecture Description GS2101M Low Power WiFi Module Data Sheet A 64KB dual port memory is used for exchange of data between the two CPU domains. Each CPU subsystem can read or write to this memory using an independent memory port. SW must manage the memory access to avoid simultaneous write to the same memory location. The dual port memory appears as a single bank to each CPU subsystem. 2.1.4.
GS2101M Low Power WiFi Module Data Sheet GS2101M Architecture Architecture Description 2.1.6 Real Time Clock (RTC) Overview To provide global time (and date) to the system, the GS2101Mxx module is equipped with a low-power Real Time Clock (RTC). The RTC is the always on block that manages the Standby state. This block is powered from a supply pin (VRTC) separate from the digital core and may be powered directly from a battery. The RTC implementation supports a voltage range of 1.6V to 3.6V. 2.1.6.
GS2101M Architecture Architecture Description GS2101M Low Power WiFi Module Data Sheet 2.1.6.2 Real Time Clock Counter The Real Time Counter features: – 48-bit length (with absolute duration of 272 years). – Low-power design. 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). 2.1.6.
GS2101M Low Power WiFi Module Data Sheet GS2101M Architecture Architecture Description • 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 responds to Direct read/write (IO52) and Extended read/write (IO53) transactions.
GS2101M Architecture Architecture Description GS2101M Low Power WiFi Module Data Sheet interrupts to the CPU to indicate specific events such as FIFO full/empty, block complete, no ack error, and arbitration failure. 2.1.7.5 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.
GS2101M Low Power WiFi Module Data Sheet GS2101M Architecture Architecture Description 2.1.8 System States The system states of the GS2101Mxx system are as follows: Power OFF: No power source connected to the system. Standby: In the standby state, the GS2101M is in its lowest power state. In this state power is on to the VRTC and VIN_3V3 input. The RTC portion of the GS2000 chip is powered from the VRTC pin. In standby state, the 32.
GS2101M Architecture Architecture Description GS2101M Low Power WiFi Module Data Sheet 2.1.9 Power Supply This section shows various application power supply connections. Figure 2, page 34 shows the GS2101Mxx power supply connection. Figure 2 GS2101Mxx Always ON Power Supply Connection Note: 1. Always ON connection connects VRTC and VIN_3V3 together to a 3.3V power supply. 34 Confidential GS2101M-DS-001270, Release 1.
Chapter 3 Pin-out and Signal Description This chapter describes the GainSpan® GS2101M Low Power module architecture. • GS2101Mxx Device Pin-out, page 35 3.1 GS2101Mxx Device Pin-out Figure 3, page 35 shows the GS2101Mxx device pin-out diagram. Figure 3 GS2101Mxx Device Pin-out Diagram (Module Top View) GS2101M-DS-001270, Release 1.
Pin-out and Signal Description GS2101Mxx Device Pin-out GS2101M Low Power WiFi Module Data Sheet 3.1.1 GS2101Mxx Module Pins Description Table 7, page 36 describes the GS2101Mxx module pin signal description.
GS2101M Low Power WiFi Module Data Sheet Pin-out and Signal Description GS2101Mxx Device Pin-out Table 7 GS2101Mxx Module Pin Signal Description (Continued) Pins 18 Name Voltage Domain Internal Bias after Hardware Reset GPIO8/I2C_DATA (see Note 3 and Note 5)VIN_3V3 Pull-down Drive Strength (mA) Signal State Description 12 Digital GPIO/Inter-Integrated Input/Output Circuit Data 4 GPIO/SDIO_DATA Bit Digital 2/UART1 Transmitter Input/Output Output 19 GPIO32/SDIO_DAT2/ UART1_TX (see Note VIN_3V3
Pin-out and Signal Description GS2101Mxx Device Pin-out GS2101M Low Power WiFi Module Data Sheet Table 7 GS2101Mxx Module Pin Signal Description (Continued) Pins Name Voltage Domain 0V Internal Bias after Hardware Reset Drive Strength (mA) Not Applicable Signal State Analog Port Description 33 GND 34 GPIO28/I2C_DATA VIN_3V3 Pull-down (see Note 3 and Note 5) 35 JTAG_TCK VIN_3V3 Pull-up Digital Input 36 JTAG_TDO VIN_3V3 Pull-down Digital Output JTAG Test Data Out 37 JTAG_TDI VIN_3V3 P
GS2101M Low Power WiFi Module Data Sheet Pin-out and Signal Description GS2101Mxx Device Pin-out between the SPI_DOUT pin and the SPI bus, with the enable connected to the chip select signal. 3.1.2 GS2101M Pin MUX Function The GS2101M pins have multiple functions that can be selected using mux function by software. Table 8, page 39 shows the various MUX functions for each pin. Each pin can be independently configured. Table below shows the various mux functions for each pin.
Pin-out and Signal Description GS2101Mxx Device Pin-out GS2101M Low Power WiFi Module Data Sheet Table 8 GS2101M Pin MUX Description (Continued) Alternate Functions Available Pin# Pin Name 24 gpio37/sdio_dat1_int 25 GND 26 NC 27 Internal Pull Resistor mA Mux3 Mux4 Mux5 Mux7 d 4 sdio_data1 wuart_rx uart1_rx spi0_cs_n_10 gpio1/uart0_tx d 4 uart0_tx wuart_tx pwm1 spi1_dout1 28 gpio25/uart0_rts d 12 uart0_rts wuart_rts spi1_cs_n_7 spi1_clk 29 gpio0_uart0_rx d 4 uart0_rx
GS2101M Low Power WiFi Module Data Sheet Pin-out and Signal Description GS2101Mxx Device Pin-out 3.1.3 GS2101M Program and Code Restore Options Table 9, page 41 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 GS2101M resides on the internal flash of the module and up to two back-up copies could be stored in flash.
Pin-out and Signal Description GS2101Mxx Device Pin-out GS2101M Low Power WiFi Module Data Sheet - This page intentionally left blank - 42 Confidential GS2101M-DS-001270, Release 1.
Chapter 4 Electrical Characteristics This chapter describes the GainSpan® GS2101M electrical characteristics. • Absolute Maximum Ratings, page 43 • Operating Conditions, page 44 • I/O DC Specifications, page 45 • Power Consumption, page 47 • 802.11 Radio Parameters, page 48 • Sigma Delta ADC Parameters, page 49 4.1 Absolute Maximum Ratings Conditions beyond those cited in Table 10, page 43 may cause permanent damage to the GS2101Mxx, and must be avoided.
Electrical Characteristics Operating Conditions GS2101M Low Power WiFi Module Data Sheet 4.2 Operating Conditions Table 11, page 44 lists the operating conditions of the GS2101Mxx module. Table 11 Operating Conditions Parameter Symbol Minimum Extended T Temperature Range A -40 RTC Power Supply VRTC 1.6 Single Supply Port GS2101MIx 2.7 VIN_3V3 Signal Pin Voltage1 VI 2 VPP Typical 5.5 Unit +85 oC 3.3 3.6 V 3.3 3.6 V Voltage Domain V 6.0 V 0 VPP Maximum 5.75 Notes: 1.
GS2101M Low Power WiFi Module Data Sheet Electrical Characteristics I/O DC Specifications 4.3 I/O DC Specifications 4.3.1 I/O Digital Specifications (Tri-State) Pin Types 4mA, 12mA, and 16mA The specifications for these I/O’s are given for voltage ranges: 2.7V to 3.6V. 4.3.1.1 I/O Digital Specifications for VDDIO=2.7V to 3.6V Table 12, page 45 lists the parameters for I/O digital specification for VDDIO 2.7V to 3.6V for Pin Types 4mA, 12mA, and 16mA. Table 12 I/O Digital Parameters for VDDIO=2.7V to 3.
Electrical Characteristics I/O DC Specifications GS2101M Low Power WiFi Module Data Sheet 4.3.2 RTC I/O Specifications Table 13, page 46 lists the RTC I/O parameters. Table 13 RTC I/O Parameters Parameter Symbol Minimum Typical Maximum Unit Supply Voltage VRTC 1.6 3.6 V Input Low Voltage VIL -.03 0.3*VRTC V Input High Voltage VIH 0.7*VRTC VRTC+0.3 V 0.
GS2101M Low Power WiFi Module Data Sheet Electrical Characteristics Power Consumption 4.4 Power Consumption Table 14, page 47 lists the power consumption for the GS2101Mxx. Typical conditions are: VIN_3V3=VRTC=3.3V Temp=25oC. Table 14 Power Consumption in Different States Current (Typical)1 System State Standby (VIN_3V3 ON) 50μA Deep Sleep (see Note 2) 615μA WLAN Continuous Transmit (1 Mbps, 16 dBm) 355 mA WLAN Continuous Receive (1 Mbps, -90 dBm sensitivity) 135 mA IEEE 802.
Electrical Characteristics 802.11 Radio Parameters GS2101M Low Power WiFi Module Data Sheet 4.5 802.11 Radio Parameters Table 15, page 48 lists the 802.11 Radio parameters. Test conditions are: VIN_3V3=VRTC=3.3V Temp=25oC. Table 15 802.11 Radio Parameters - (Typical - Nominal Conditions) Parameter Minimum Typical Maximum Unit Notes RF Frequency Range 2400 2497 MHz N/A Radio bit rate HT20 MCS7 Mbps N/A dBm 11b, 1Mbps 11b, 5.
GS2101M Low Power WiFi Module Data Sheet Electrical Characteristics Sigma Delta ADC Parameters 4.6 Sigma Delta ADC Parameters Table 16, page 49 lists the Sigma Delta ADC parameters. Test conditions are: VIN_3V3=VRTC=3.3V Temp=25oC. Table 16 ADC Parameters Parameter Minimum Typical Maximum Unit Notes D/A DC Performance (see Note 1) Resolution - 16 - Bits Full Scale 2.
Electrical Characteristics Sigma Delta ADC Parameters GS2101M Low Power WiFi Module Data Sheet Notes: 1. The D/A output is fully differential. The Analog power supply is 3.3V +/- 10%. 2. Full scale (FS) can be trimmed in the reference generator. The gain error specified is on top of the reference level error. 3. The master clock frequency is always 250 times higher than data clock rate. 4. Assumes a -1 dB full scale input and corrected for full scale. Fin can be from 0 to 10KHz.
Chapter 5 Package and Layout Guidelines This chapter describes the GainSpan® GS2101M package and layout guidelines. • GS2101Mxx Recommended PCB Footprint and Dimensions, page 51 5.1 GS2101Mxx Recommended PCB Footprint and Dimensions Figure 4, page 51 shows the GS2101MIx Module PCB Footprint. Figure 5, page 52 shows the GS2101MIx Module Dimensions. Figure 4 GS2101MIx Module Recommended PCB Footprint (in millimeters) GS2101M-DS-001270, Release 1.
Package and Layout Guidelines GS2101Mxx Recommended PCB Footprint and Dimensions GS2101M Low Power WiFi Module Data Sheet Figure 5 GS2101MIx Module Dimensions (in millimeters) Notes: 1. All Dimensions are in millimeters (mm). 2. For Boards using PCB Antenna, we recommend: – Have Only Air on BOTH sides of antenna.
GS2101M Low Power WiFi Module Data Sheet Package and Layout Guidelines GS2101Mxx Recommended PCB Footprint and – Antenna at edge of base board, not interior of base board – Nothing conductive near antenna (e.g. battery, display, wire) 3. The 3 RF shield mounting holes and 2 test fixture alignment holes (circled in red in Figure 4, page 51) have exposed metal. These areas must not have metal on the customer board. 4.
Package and Layout Guidelines GS2101Mxx Recommended PCB Footprint and Dimensions GS2101M Low Power WiFi Module Data Sheet 5.1.1 Surface Mount Assembly The reflow profile is shown in Figure 6, page 54. The recommended reflow parameters are summarized in Table 17, page 54. Figure 6 Reflow Temperature Profile Table 17 Recommended Reflow Parameters Preheat 2 Temperature Ramp up rate for (A) 1.5~3.
GS2101M Low Power WiFi Module Data Sheet Package and Layout Guidelines GS2101Mxx Recommended PCB Footprint and 4. Pay close attention to “Melting Time over 220oC”. Sufficient time is necessary to completely melt all solder. 5. Be careful about rapid temperature rise in preheat zone as it may cause excessive slumping of the solder paste. 6. If the preheat is insufficient, rather large solder balls tend to be generated.
Package and Layout Guidelines GS2101Mxx Recommended PCB Footprint and Dimensions GS2101M Low Power WiFi Module Data Sheet Figure 7 Thermocouple Locations 56 Confidential GS2101M-DS-001270, Release 1.
GS2101M Low Power WiFi Module Data Sheet Package and Layout Guidelines GS2101Mxx Recommended PCB Footprint and Figure 8 Module Moisture Conditions GS2101M-DS-001270, Release 1.
Package and Layout Guidelines GS2101Mxx Recommended PCB Footprint and Dimensions 58 Confidential GS2101M Low Power WiFi Module Data Sheet GS2101M-DS-001270, Release 1.
