User manual
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| Document ID | 1009467 |
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| Document Description | User manual |
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| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 180.04kB (2250498 bits) |
| Date Submitted | 2008-10-01 00:00:00 |
| Date Available | 2008-10-02 00:00:00 |
| Creation Date | 2008-08-07 12:53:05 |
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| Document Lastmod | 2008-08-07 12:53:05 |
| Document Title | untitled |
Digi Connect® Wi‐EM 9210 Hardware Reference Part number/version 90000955_A Release date: August 2008 www.digiembedded.com © Digi International Inc. 2008. All Rights Reserved. The Digi logo and Digi Connect are registered trademarks of Digi International, Inc. Connectware and Digi Connect Wi-EM are trademarks of Digi International, Inc. NetSilicon, NET+Works, NET+OS, and NET+ are trademarks of NetSilicon, Inc. All other trademarks mentioned in this document are the property of their respective owners. Information in this document is subject to change without notice and does not represent a commitment on the part of Digi International. Digi provides this document “as is,” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of fitness or merchantability for a particular purpose. Digi may make improvements and/or changes in this manual or in the product(s) and/or the program(s) described in this manual at any time. This product could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes may be incorporated in new editions of the publication. Contents About This Guide ..................................................................................................................... 7 Scope of Reference Manual ............................................................................................. 7 Related Documentation .................................................................................................... 7 Support Information ......................................................................................................... 7 Chapter 1: About the Embedded Module............................................................................ 9 Overview .......................................................................................................................... 9 Types of Modules........................................................................................................... 10 Connectors: Power and Serial Interface ......................................................................... 11 Connectors: Antenna ...................................................................................................... 13 Reset Switch ................................................................................................................... 14 Module LEDs ................................................................................................................. 14 Chapter 2: About the Development Board ........................................................................ 17 Overview ........................................................................................................................ 17 Basic Description ........................................................................................................... 17 Ports................................................................................................................................ 19 Connectors and Blocks................................................................................................... 20 Power Jack (P17)............................................................................................................ 25 Switches.......................................................................................................................... 26 Development Board LEDs ............................................................................................. 28 Test Points ...................................................................................................................... 29 Chapter 3: Programming Considerations.......................................................................... 33 GPIO............................................................................................................................... 33 About Embedded Module LEDs .................................................................................... 39 Embedded Module Reset................................................................................................ 40 Memory.......................................................................................................................... 40 Appendix A: Specifications ................................................................................................. 43 Network Interfaces......................................................................................................... 43 Serial Interface ............................................................................................................... 44 Data Rates (bps) ............................................................................................................. 44 Flow Control Options..................................................................................................... 44 Environmental................................................................................................................ 44 DC Characteristics ......................................................................................................... 44 Mechanical .................................................................................................................... 46 Layouts and Dimensions................................................................................................ 46 Antenna Information ...................................................................................................... 51 RF Exposure Statement.................................................................................................. 56 Safety Statements........................................................................................................... 56 Notes to original equipment manufacturer (OEM ) integrators..................................... 57 Appendix B: Certifications ................................................................................................. 59 FCC Part 15 Class B ...................................................................................................... 59 Industry Canada ............................................................................................................. 60 Declaration of Conformity ............................................................................................. 61 International EMC Standards......................................................................................... 62 Appendix C: Sample Application: TTL Signals to EIA-232............................................ 63 About This Guide ••••••••••••••••••••••••••••••••••••••••••••••••••• Scope of Reference Manual The scope of this guide is to enable developers to integrate the Digi Connect WiEM 9210 modules into other devices. Graphics illustrate the placement and dimensions of components for both the modules and the development board. Related Documentation See the NS 9210 Hardware Reference for information on the NS 9210 chip. Support Information To get help with a question or technical problem or make comments and recommendations about Digi products and documentation, use the following contact information. General Customer Service and Support Digi International United States: 1 877-912-3444 11001 Bren Road East Other Locations: 1 952-912-3444 Minnetonka, MN 55343 www.digiembedded.com/support www.digiembedded.com U.S.A. Support Information Digi Connect EM & Wi-EM Hardware Reference About the Embedded Module Overview Digi Connect Wi-EM 9210 Overview The embedded modules are part of the Digi Connect family of device servers that provide simple, reliable and cost-effective network connections for serial devices. They provide fully transparent serial device connectivity over industry-standard wireless connections and allow both equipment manufacturers and systems integrators to network-enable products at a fraction of the time and cost required to develop a custom solution. It is a highly flexible and compact single component solution with a robust on-board TCP/IP stack and wireless support. Features include the following: 32-bit Digi Wi-EM 9210 processor with ARM926EJ-S core 4MB Flash and 8MB RAM on board 2 High Speed Serial Ports SPI Master Mode Interface 9 General Purpose Input/Output Port Options NetSilicon NET+Works platform for embedded software development From medical systems to building control and industrial automation, in virtually any application where embedded serial connectivity over WLAN is needed, the embedded module is the ideal choice, delivering high-performance functionality. Types of Modules Cautions To guard against damage to the module due to electrostatic discharge (ESD), do not remove it from its protective packaging until you have been properly grounded. To ground yourself, put the wrist strap on (included in the package) and then attach the clip to a metal surface. Input voltage for the module is 3.3 VDC. Types of Modules The following describes the available types of Digi Connect Wi-EM 9210 modules: Choosing a Module for Your Product Although any of the embedded modules can be designed into your product, a JTAG header would typically be used only for debugging during the development process. The following shows all available Digi Connect Wi-EM 9210 product options. DC-EM-02T-ST C Digi Connect Wi-EM Modules Model Description ----DC-WEM-9210-JT ----- 10 Used for development purposes only JTAG interface Pin headers LED functionality Single RP-SMA Antenna Connector. Digi Connect Wi-EM 9210 Hardware Reference Figure About the Embedded Module Digi Connect Wi-EM Modules Model Description ----DC-WEM-9210- --IN-1 --- No JTAG interface Pin headers LED functionality Single RP-SMA Antenna Connector Ordered independently of development kit for use in your implementation ----DC-WEM-9210- --SB-1 --- No JTAG interface No LED array/pin header Dual U.FL Antenna Connector Ordered independently of either development or integration kit for use in your implementation. Figure Digi Connect Wi-EM Antennae The Digi Connect Wi-EM 9210 is available with U.FL dual-diversity or single RP-SMA antenna connectors. In case of dual diversity, the right antenna (P2) is always used for transmit and receive. The left antenna is receive only. The antenna will choose the best signal. Connectors: Power and Serial Interface This single 12-pin, serial interface port (P5) supports 2 TTL serial interfaces, data rates up to 921 Kbps and full-modem control (on port 1). See the figure for help locating pins and the table for pin assignments. 11 Connectors: Power and Serial Interface Power and Serial Interface 10 12 pin 1 11 top view Power and Serial Interface Pin Assignments 12 Pin Signal Name Description and Notes VCC +3.3 VDC (input only) GND Reference Ground for input power RXD/GPIO-7 Port 1 RXD (input)/GPIO-7 TXD/GPIO-6 Port 1 TXD (output)/GPIO-6 RTS/GPIO-4/SPI_CLK Port 1 RTS/GPIO-4/SPI clock DTR/GPIO-5 Port 1 DTR (output)/GPIO-5 CTS/GPIO-2 Port 1 CTS (input)/GPIO-2 DCD/GPIO-1/SPI_EN Port 1 DCD (input)/GPIO-1/SPI enable DSR/GPIO-3 Port 1 DSR (input)/GPIO-3 10 /RST Reset (input) 11 RXD/GPIO-9 Port 2 RXD (input)/GPIO-9 12 TXD/GPIO-8 Port 2 TXD (output)/GPIO-8 Digi Connect Wi-EM 9210 Hardware Reference About the Embedded Module Connectors: Antenna The Digi Connect Wi-EM is available in two antenna configurations: (1) two U.FL antenna connectors for dual-diversity, or (2) a single RP-SMA antenna connector. Caution: This Part 15 radio device operates on a non-interference basis with other devices operating at this frequency when using the antennae listed in the Antenna Specification table. Any changes or modification to the product not expressly approved by Digi International could void the user’s authority to operate the device. Wi-EM Antenna Connectors 13 Reset Switch Reset Switch The behavior of the reset switch is determined by software, which means that it has a predefined behavior in the integration kit. In the development kit, its behavior is determined by your implementation. See the following table for details. Reset Switch Behavior Kit Integration Behavior The reset switch does one of the following: If pressed and released immediately, the device is rebooted. If pressed and held down (for about 20 seconds) during power-up, the device is rebooted and restored to the default configuration. Development The behavior of the switch is user-defined. See "Embedded Module Reset" on page 40 for more information. Reset Switch Location Reset switches Module LEDs The modules provide two hardware options for LEDs, with or without on board LED array. The integration kit provides predefined LED behavior. With the development kit, some LED behavior can be determined by your implementation. See the following table for more information.. 14 Digi Connect Wi-EM 9210 Hardware Reference About the Embedded Module LED Behaviors LED Top left (green) Top right (green) Pin Description Header EM 1 (+) 3(-) Serial port activity: Off - the serial channel is idle. Blinking - serial data is transmitted or received. 5 (+) 7 (-) Network link status: Off - no link has been detected. On - a link has been detected. Network link status: On - unit is associated with an access point Blinking slowly - unit is in ad hoc mode Blinking quickly - unit is scanning for a network Notes This LED is software programmable Same as Integration Kit (Network link status) Bottom 2 (+) left (red) 4 (-) Diagnostics: Blinking 1-1-1 - starting the operating system. Blinking 1-5-1 - configuration has been returned to factory defaults. Note: If other blinking patterns occur, contact Digi Technical Support. This LED is software programmable Bottom right (yellow) Blinking - network data is transmitted or received This LED is software programmable 6 (+) 8 (-) 15 Module LEDs Digi Connect Wi-EM 9210 Pin Header Locations (Top view) LED pin header LED pins and pin header configuration are described in the "LED Behaviors" table on page 15. 16 Digi Connect Wi-EM 9210 Hardware Reference About the Development Board Overview This chapter provides information on the development board, a hardware platform from which you can determine how to integrate the embedded module into your design. For additional information, see the schematic and mechanical drawings. Basic Description The following graphic is a layout of the development board. 17 Basic Description Basic Description Serial port 2 Serial port 1 Serial signaling LEDs GPIO ports GPIO/serial switch banks GPIO LEDs JTAG connector for debugger Logic signal connector SPI connector Status LEDs Reset switch CR19 Main Digi Connect Wi-EM 9210 connector P13 SPI jumper block 3.3V LED P12 Power jack 18 Digi Connect Wi-EM 9210 Hardware Reference About the Development Board Ports The development board provides the following ports: Serial Port 1 (P1) and Serial Port 2 (P2) Ethernet Port (P12) GPIO Port (P3) Serial Port 1 (P1) and Serial Port 2 (P2) Serial port 1 and port 2 are DB-9 male connectors labeled P1 and P2. Use the following figure and table for pin orientation and pin assignment information. Serial Port Pin Orientation Pin 5 Pin 6 Pin 9 00000006 Pin 1 Serial Pin Assignment Port Signal Pin 1 Signal Pin 2 Signal Pin 3 Signal Pin 4 Signal Pin 5 Signal Pin 6 Signal Pin 7 Signal Pin 8 DCD RXD TXD DTR GND DSR RTS CTS Not Connected RXD TXD Not Not Not Not Connected Connected Connected Connected Not Connected GND Signal Pin 9 Not Connected 19 Connectors and Blocks GPIO Port (P3) The GPIO port is a 10-pin male right-angle connector (labeled P3). See the following figure and table for pin orientation and pin assignments. Pin 1 Pin 10 00000020 GPIO Port Pin Orientation GPIO Port Pin Assignments Pin Signal Name GND GPIO-9 GPIO-8 GPIO-7 GPIO-6 GPIO-5 GPIO-4 GPIO-3 GPIO-2 10 GPIO-1 Connectors and Blocks The development board provides the following connectors and blocks: JTAG Debugger Connector (P4) SPI Connector (P11) and SPI Jumper Block 20 Digi Connect Wi-EM 9210 Hardware Reference About the Development Board Logic Signal Analyzer Header (P6) Main Connector (P8) JTAG Debugger Connector (P4) This 14-pin male vertical header labeled P4 mates with a JTAG debugger plug (for example, a Digi JTAG Link). It is used with the development kit only. See the following figure and table for pin orientation and assignments. JTAG Debugger Connector Pin Orientation 13 pin 14 JTAG Debugger Connector Pin Assignments Signal Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin 10 Pin 11 Pin 12 Pin 13 Pin 14 VCC+ GND /TRST GND TDI GND TMS GND TCK GND TDO /SRST VCC+ GND SPI Connector (P11) This connector is used for a Serial Peripheral Interface (SPI) connection. When enabled, signals are disconnected from serial port 1 and GPIO connectors. See the following figure and table for pin orientation and pin assignments. 21 Connectors and Blocks SPI Connector Pin Orientation Pin 8 Pin 7 Pin 2 Pin 1 SPI Pin Assignments Signal Pin Pin Pin Pin Pin Pin Pin Pin Pin Pin 10 SPI-EN GND SPI-CLK GND SPI-TX GND SPI-RX GND Not connected Not connected SPI Jumper Block The SPI jumper block determines whether the SPI connector is connected or not. If SPI is off (the default), serial and GPIO signals are routed to switch banks 1 through 4. (See "Serial/GPIO Switch Bank 3 (SW3) and Switch Bank 4 (SW4)" on page 26 and "GPIO Switch Bank 1 (SW1) and 2 (SW2)" on page 27.) If SPI is on, SPI signals are routed to the SPI connector (P11). The following figures demonstrate how to set the SPI jumper block 22 Digi Connect Wi-EM 9210 Hardware Reference About the Development Board SPI Jumper Settings SPI OFF SPI ON Logic Signal Analyzer Header (P6) This 20-pin male vertical header (labeled P6) connects a digital signal analyzer (for example, a logic analyzer) to the development board. It is used with the development kit only. See the following figure and table for pin orientation and pin assignments. Logic Analyzer Header Pin Orientation Pin 1 Pin 2 Pin 19 Pin 20 Logic Analyzer Header Pin Assignments Pin Signal 1-8 Not connected 23 Connectors and Blocks Logic Analyzer Header Pin Assignments Pin Signal /RST 10 Not connected 11 DTR/GPIO-5 12 TXD-2/GPIO-8 13 CTS/GPIO-2 14 RXD-2/GPIO-9 15 DSR/GPIO-3 16 TXD-1/GPIO-6 17 RTS/GPIO-4/SPI_CLK 18 RXD-1/GPIO-7 19 DCD/GPIO-1/SPI_EN 20 GND Main Connector (P8) This 12-pin connector is used to interface with the embedded module. See the following figure for pin orientation. 24 Digi Connect Wi-EM 9210 Hardware Reference About the Development Board Main Connector Pin Orientation Pin 1 Pin 11 Pin 2 Pin 12 Top view Power Jack (P17) The Power Jack is a barrel connector that accepts 9 to 30 VDC +/- 5%. The jack is labeled P17. The following table shows the polarity of the power jack. Power Jack Polarity Contact Polarity Center +9 to +30 VDC Outer Ground The following figure schematically represents the polarity of the power jack 25 Switches Power Jack Polarity Schematic. Ground +9 to +30 VDC Switches The development board provides the following switches: Reset Switch (SW5) Serial/GPIO Switch Bank 3 (SW3) and Switch Bank 4 (SW4) GPIO Switch Bank 1 (SW1) and 2 (SW2) Reset Switch (SW5) This push button switch is labeled SW5. Pressing it sets the module's /RST line low, holding the module in a hard reset until the switch is released. Note: This is a "hard" reset using the /RST pin on the main connector, not a "soft" reset. The reset button on the embedded module performs a "soft" reset (see also "Main Connector (P8)" on page 24). Serial/GPIO Switch Bank 3 (SW3) and Switch Bank 4 (SW4) Each switch bank holds five slide switches that enable either serial or GPIO signaling between the development board and the module. When set for GPIO signaling, SW3 works in conjunction with SW1, and SW4 works with SW2. See "GPIO Switch Bank 1 (SW1) and 2 (SW2)" on page 27 for more information. See the following table for SW3 and SW4 switch definitions. 26 Digi Connect Wi-EM 9210 Hardware Reference About the Development Board Note: These switches control where the development board routes a signal. They do not reconfigure the Wi-EM 9210 processor. Software should be configured to track with switch settings. See "GPIO" on page 33 for more information. GPIO Switch Banks 3 and 4 Settings Switch Bank SW3 SW4 Switch Number Left Position Right Position DCD GPIO-1 CTS GPIO-2 DSR GPIO-3 RTS GPIO-4 DTR GPIO-5 TXD-1 GPIO-6 RXD-1 GPIO-7 TXD-2 GPIO-8 RXD-2 GPIO-9 10 Not connected Not connected GPIO Switch Bank 1 (SW1) and 2 (SW2) GPIO Switch Bank 1 and Switch Bank 2, labeled SW1 and SW2, are two sets of five slide switches that set GPIO inputs to logic levels of high (switch to left) or low (switch to right). If the GPIO port is configured as an output, then the switch should always be to the left. If there is an external device connected to P3, the switch should always be set to the left. Each GPIO port can be used independently. Notes: These switches do not determine whether the GPIO is an input or output. That is determined by the module software. If GPIO is set to an output by software, switches must be set to the left (high). These switches are used in conjunction with SW3 and SW4. 27 Development Board LEDs Development Board LEDs The development board contains 21 LEDs labeled CR1 through CR21. The following table lists and describes the LEDs. LED Descriptions Board Label Description CR1 TXD-2 CR2 CR3 CR4 CR5 CR6 CR7 28 Color or State Indication Flickering Serial activity Green Inactive Flickering Serial activity Green Inactive Yellow Active Green Inactive Off Not connected or signal not being driven Yellow Active Green Inactive Off Not connected or signal not being driven Flickering Serial activity Green Inactive Flickering Serial activity Green Inactive Yellow Active Green Inactive Off Not connected or signal not being driven RXD-2 CTS DTR TXD-1 RXD-1 RTS Digi Connect Wi-EM 9210 Hardware Reference About the Development Board LED Descriptions Board Label CR8 CR9 CR10 -18 CR20 CR21 Description DCD DSR GPIO-1 through GPIO-9. (CR10=GPIO-1, CR11=GPIO-2, etc. All can be used for input or output.) Color or State Indication Yellow Active Green Inactive Off Not connected or signal not being driven Yellow Active Green Inactive Off Not connected or signal not being driven On Logic high Off Logic low On Power on Off Power off On Ethernet power present from external powered Ethernet connector (Ethernet hub or switch) Off No powered Ethernet voltage 3.3V Indicator EPWR, Powered Ethernet Enabled Test Points The development board provides 25 test points that can be identified by board label or test point number. The board labels are adjacent to each test point on the board. The test point numbers are in the development board schematic drawings. The following table lists the test point number, board label, and a brief description of each test point. 29 Test Points Test Point Descriptions 30 Test Point Board Label Description TP2 TXD TXD-2 TP3 RXD RXD-2 TP4 CTS CTS TP5 DTR DTR TP6 TXD TXD-1 TP7 RXD RXD-1 TP8 RTS RTS TP9 DCD DCD TP10 DSR DSR TP11 IO-1 GPIO-1 TP12 IO-2 GPIO-2 TP13 IO-3 GPIO-3 TP14 IO-4 GPIO-4 TP15 IO-5 GPIO-5 TP17 3.3V 3.3V Supply TP20 RESET Reset (active low) TP21 E+ Ethernet Power + TP22 E- Ethernet Power - TP23 V-IN 9-30 VDC Input TP24 GND Ground TP25 GND Ground TP26 IO-8 GPIO-8 TP27 IO-7 GPIO-7 Digi Connect Wi-EM 9210 Hardware Reference About the Development Board Test Point Descriptions Test Point Board Label Description TP28 IO-6 GPIO-6 TP29 IO-9 GPIO-9 31 Test Points 32 Digi Connect Wi-EM 9210 Hardware Reference Programming Considerations This chapter addresses the embedded modules programming considerations. Note: This chapter applies only to development kit customers. GPIO General Information The Wi-EM 9210 processor supports 16 general purpose I/O (GPIO) lines, some of which are reserved for specific functions and some of which can be customized. These GPIO lines fall into three categories: Those labeled “Reserved” in the following table are reserved for a specific use and must not be reprogrammed, or the unit may not operate correctly. Often, these lines are not connected to external interfaces. Those labeled “Allocated” in the following table are exposed to an external interface and allocated to a specific use by the software, but they can be customized safely with code modifications. Those labeled “Available” are exposed to an external interface, not controlled directly by the software, and can be customized. 33 GPIO GPIO Registers Six registers govern the 16 GPIO pins. There are four configuration registers. Each has eight bits dedicated to the configuration of each GPIO. Register D31:24 D23:D1 D15:08 D07:00 A090 2000, config 0 GPIO [15] GPIO [14] GPIO [13] GPIO [12] A090 2004, config 1 GPIO [11] GPIO [10] GPIO [9] GPIO [8] A090 2008, config 2 GPIO [7] GPIO [6] GPIO [5] GPIO [4] A090 200C, config 3 GPIO [3] GPIO [2] GPIO [1] GPIO [0] Each GPIO configuration section is set up the same way. The following table shows the settings using bits D07:00; the same settings apply to the corresponding bits in D31:24, D23:D16, and D15:08. GPIO pin configuration registers GPIO Configuration Setings using bits D07:00 34 D07:06 Reserved N/A D05:03 FUNC Use these bits to select the function you want to use. For a detailed description of each function see the NS 9210 HRM in the Pinout chapter under "General purpose I/O (GPIO)" and the "GPIO pin use" table in this manual. 000 Function #0 001 Function #1 010 Function #2RESET_DONE - default for GPIO[12] 011 Function #3GPIO - default, except for GPIO[12] 100 Function #4 Digi Connect Wi-EM 9210 Hardware Reference Programming Considerations GPIO Configuration Setings using bits D07:00 D02 DIR Controls the pin direction when the FUNC field is configured for GPIO mode, function #3. 0 Input 1 Output All GPIO pins reset to the input state. Note: The pin direction is controlled by the selected function in modes #0 through #2. D01 INV Controls the inversion function of the GPIO pin. 0 Disables the inversion function 1 Enables the inversion function This bit applies to all functional modes. D00 PUDIS Controls the GPIO pin pullup resistor operation. 0 Enables the pullup 1 Disables the pullup Note: The pullup cannot be disabled on GPIO[9], GPIO[12] 35 GPIO GPIO [15:0] Control Register There is one GPIO control Register that governs all 16 GPIO pins. When a GPIO pin is configured as a GPIO output, the corresponding bit in the GPIO Control Register is driven out the GPIO pin. In all configurations, the CPU has read/write access to these registers. Register bits D31:16 are unused GPIO pins. These pins are being used as memory data bits 15:00. It is safest to read all 32 bits, modify the bit(s) corresponding to the GPIO(s) of interest, and then write back the full 32 bits. In this way the behavior of the other GPIO lines will be preserved. Register A090 206C D31:24 D23:D16 GPIO [31:24] not used] GPIO [23:16] not used D15:08 GPIO [15:8] D07:00 GPIO [7:0] GPIO [15:0] Status Register There is one GPIO Status Register. This register contains the status information for each of the 16 GPIO pins. Bits D31:16 are used as memory data therefore their status will not be meaningful. In all configurations, the value on the GPIO input pin is brought to the status register and the CPU has read-only access to this register. Register A090 207C 36 D31:24 D23:D16 GPIO [31:24] not used] GPIO [23:16] not used D15:08 GPIO [15:8] Digi Connect Wi-EM 9210 Hardware Reference D07:00 GPIO [7:0] Programming Considerations GPIO pin use table GPIO Pin Use Name TXSD/ SPI_TX/ GPIO-6 DTR/GPIO5 RTS/ SPI_CLK/ GPIO-4 (See description) RXD/ SPI_RX/ GPIO-7 DSR/GPIO3 Register Bit GPIO[7] GPIO[6] GPIO[5]or GPIO[4] GPIO[3] GPIO[2] External Interface Description Allocated Pin 4 on the main header Used for the serial TXD or SPI_TX, but could be reassigned as a GPIO, timer out 7 or in 8. If used with the development board, this pin maps to GPIO-6. Allocated Pin 6 on the main header Usedc for the serial DTR but could be reassigned as a GPIO, or timer in 7. If used with the development board, this pin maps to GPIO-5. Allocated Pin 5 on the main header Since these two processor pins map to the same header pin, one must be configured as an input to avoid contention. UART: GPIO[5] is confiured for RTS and GPIO[4] for GPIO input. SPI: GPIO[5] for GPIO input and GPIO[4] for SPI_CLK. Other: GPIO[5] supports IRQ3 and timer out 6. GPIO[4] supports IRQ2 and timer in 6. If used with the development board, header pin 5 maps to GPIO-4. Allocated Pin 3 on the main header Used for the serial RXD or SPI_RX, but could be reassigned as a GPIO or PICO-3. If used with the development board, this pin maps to GPIO-7. Allocated Pin 9 on the main header Used for the serial DSR, but could be reassigned as a GPIO or PICO-2. If used with the development board, this pin maps to GPIO-3. Category 37 GPIO GPIO Pin Use Name CTS/GPIO2 DCD// SPI_EN/ GPIO-1 TXD2/ GPIO-8 GPIO[1] GPIO[0] GPIO[15] Category External Interface Allocated Pin 7 on the main header Used for the serial CTS, but could be reassigned as a GPIO, IRQ0 or PICO-1. If used with the development board, this pin maps to GPIO-2. Allocated Pin 8 on the main header Used for the serial DCD or SPI_EN, but could be reassugned as a GPIO or PICO-0. If used with the development board, this pin maps to GPIO-1. Allocated Pin 12 on the main header Used for the serial2 TXD, but could be reassigned as a GPIOor timer in 9. If used with the development board, this pin maps to GPIO-8. Network link status: On - unit is associated with an access point Blinking slowly - unit is in ad hoc mode Blinking quickly - unit is scanning for a network Description Network link Green LED GPIO[14] Reserved Connected to the Green LED above the Yellow LED /INIT GPIO[13] Available Connected to the button on the module Should be configured as a GPIO input. Allocated Connected to the green LED above the red LED Used as the NET+OS green LED, but can be reassigned as a general purpose LED. It must remain a GPIO output for the LED to operate correctly. The LED is lit when the signal is low. Used for the serial2 RXD, but could be reassigned as a GPIO or IRQ2. If used with the development board, this pin maps to GPIO-9. N/A Serial Port activity LED/MFGO 38 Register Bit GPIO [12] RXD2/ GPIO-9 GPIO[11] Allocated Pin 11 on the main header IRQ1 GPIO[10] Reserved N/A Digi Connect Wi-EM 9210 Hardware Reference Programming Considerations GPIO Pin Use Name Register Bit Category External Interface Description MFGI GPIO[9] Reserved N/A N/A Red LED GPIO[8] Allocated Connected to the Red LED Used for diagnostics and power on indication. Note: The Wi-EM 9210 signals PIC0-[0:3] provided by the programmable FIMs (DRPIC) are only applicable when running NET+OS. About Embedded Module LEDs Embedded Module LED Description LED Description Green (above yellow LED) This LED is wired to the network hardware and provides an indication of link status. Green (the one above the red LED) This LED is software programmable and is wired to processor GPIO register bit GPIO[12] and wired to be lit when low. Use for serial port activity. Yellow This LED is wired to the network hardware and provides an indication of network activity. Red This LED is software programmable, wired to processor GPIO register bit GPIO[8], and wired to be lit when low. LED ON indicates power on and is in addition used for diagnostics. 39 Embedded Module Reset Embedded Module Reset Hard Reset The embedded modules support a hardware reset on pin 10 of the 12-pin header. The unit will be forced into a hard reset if this pin is pulled low. When used with the development board, this pin is wired to reset button SW5, which means it acts as a hard reset button. The JTAG version of the Wi-EM 9210 EM module has a 3-pin jumper (JP1) to allow two modes of operation. Shorted 1-2: The CPU and other registers are reset. The PLL, GPIOs, and memory are not. Debugger connection is maintained. This is the same as SRST# from the debugger. Shorted 2-3: The entire module is reset. Debugger connection will need to be reestablished. Soft Reset NET+OS provides an internal facility to enact a soft reset, but it is the responsibility of a specific implementation to choose a reasonable trigger to invoke it. One choice is to use a GPIO pin as a signal to trigger a soft reset. The embedded modules have one GPIO pin GPIO[13] which is not normally assigned to any other task named "/INIT." It is an ideal candidate for use as a signal for soft reset. The signal is wired to the push button on the module (next to the LEDs), and is pulled high unless the button is pushed. The "naresetapp" sample application demonstrates a simple mechanism for monitoring a GPIO pin and then initiating a soft reset when the pin achieves a particular value. Memory Flash The Wi-EM 9210 module has 4 MB of flash memory, which is controlled by chip select 2 (default = st_cs1) located at 0x50000000. 40 Digi Connect Wi-EM 9210 Hardware Reference Programming Considerations SDRAM The Wi-EM 9210 module has 16 MB of SDRAM memory, controlled by chip select 1 (default = dy_cs0), located at 0x00000000. 41 Memory 42 Digi Connect Wi-EM 9210 Hardware Reference Specifications Network Interfaces Standard: IEEE802.11b/g Frequency: 2.4 GHz Data rate: Up to 54 Mbps with fallback Modulation: DBPSK (1 Mbps), DQPSK (2 Mbps), CCK (5.5, 11 Mbps), BPSK (6, 9 Mbps), QPSK (12, 18 Mbps), 16-QAM (24, 36 Mbps), 64-QAM (48, 54 Mbps) Transmit power: 16 dBm typical Receive sensitivity: -73 dBm @ 54 Mbps 43 Serial Interface Serial Interface Two serial ports, one with full modem control signals and the other with TXD and RXD only. Data Rates (bps) 50, 110, 134, 150, 200, 300, 600, 1200, 2400, 3600, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460000, 921600 Flow Control Options RTS/CTS, XON/XOFF, None Environmental Digi Connect Wi-EM 9210 Ambient Temperature -22oF to 140oF (-30oC to 60oC) 0C max at 100% duty cycle 60 650C max at 50% duty cycle 700C max at 30% duty cyce . Storage Temperature -400F to 2570F (-400C to 1250C) Humidty 5% to 90% Altitude 12000 feet (3657.60 meters) DC Characteristics The following tables provide DC characteristics for operating conditions, inputs, and outputs. 44 Digi Connect Wi-EM 9210 Hardware Reference Specifications Operating Conditions Symbol Description Min Typ Max Unit 3.14 3.3 3.45 40 mVpp VCC Supply Voltage n/a Power Supply Ripple ICC Supply Current — 390 630 mA IIL Input Current as “0” (16.5K equivalent pull-up) — — 200 μA IIH Input Current as “1” (16.5K equivalent pull-up) -10 — 10 μA IOZ HighZ Leakage Current -10 — 10 μA IOD Output Drive Strength — — mA CIO Pin Capacitance (VO=0) — — pF Inputs Symbol Description Min Typ Max Unit VIH Input High Voltage — VCC+0.3 VIL Input Low Voltage VSS-0.3 — 0.2*VCC Outputs Symbol Description Min Typ Max Unit VOH Output High Voltage 2.4 — 3.45 VOL Output Low Voltage — 0.4 Note: The embedded modules use a supervisory circuit with a 2.93V reset threshold. When VCC falls to the threshold voltage, a reset pulse is issued, holding the output in active state. When power rises above 2.93V, the reset remains for approximately 200 ms to allow the system clock and other circuits to stabilize. Warning: The rise time of the 3.3v power supply must be between 700 mS and 140ms and the inrush current must be limited to less than 2 A. A rise time outside of these limits may cause the device to malfunction and give a 3-1-3 diagnostic error. 45 Mechanical Mechanical Module Dimensions Dimension Digi Connect Wi-EM Length: 2.287 in (58.09 mm) Width: 1.885 in (47.879 mm) Fully populated 0.785 in (19.939 mm) Height: Pin header model 0.653in (16.586 mm) Antenna -.408 oz. (11.567 g) .672 oz. (19.051 g) Weight Total - 1.080 oz. (30.617 g) Layouts and Dimensions All dimensions are in inches. These are the tolerances for the drawings shown in this section: 46 Measure Tolerance .XX ± .02 .XXX ± .010 Angles ± 2 degrees Digi Connect Wi-EM 9210 Hardware Reference Specifications Digi Connect Wi-EM (w/LED Array) Top 1.430 (2X) .100 .100 .639 1.375 1.855 1.935 47 Layouts and Dimensions Front .026 .125 .430 .320 (2X) .300 .320 (2X) .100 (2X).493 (2X).697 1.170 1.370 1.640 48 Digi Connect Wi-EM 9210 Hardware Reference Specifications Bottom 1.475 (3X) .739 .125 .100 .100 (TYP) 1.835 .710 .405 SCALE .100 (TYP) 2.000 .955 49 Layouts and Dimensions Digi Connect Wi-EM (w/LED Pin Headers) LED ARRAY AREA 50 Digi Connect Wi-EM 9210 Hardware Reference Specifications Antenna Information Antenna Strength The following diagram demonstrates the strength of the signal received by the antenna on both a horizontal and vertical plane. The diagram shows the magnetic field when the antenna is in a vertical position. The red line represents the horizontal plane and the dotted green lined represents the vertical plane. You can see in the illustration that at 90degrees, the signal strength is (as expected) 0. Radiation Patterns 51 Antenna Information Radiation Patterns for PCB Mount Antenna 52 Digi Connect Wi-EM 9210 Hardware Reference Specifications Antenna Specifications for North America Antenna Description Dipole PCB Mount 2.4~2.5GHz 2.4~2.5 GHz 4.9~5.9GHz Power Output 2W 10W DB Gain 2dBi >2dBi < or = 2.0 < 2.5 108.5 mm x 10.0 mm 24.13 x 10.67 mm 10.5g < 1g RP-SMA U.FL DG-ANT-20DT-BG DG-ANT-20CB-AG Frequency VSWR Dimension Weight Connector Part Number In the United States, any antenna matching the in-band and out-of-band signal patterns and strengths of the antenna, whose characteristics are given in the Antenna Description table and the Radiation pattern graphic, may be used with the Digi Connect Wi-EM 9210. 53 1.200 (30.5) 1.010 (25.4) .399 (10.1) 90.0˚ 3.300 (83.8) 54 bOBITRON SCALE 3.000 UNITS: mm 3.500 (88.9) .360 (9.1) R.125 (3.2) Antenna Information Dipole Antenna Dimensions Digi Connect Wi-EM 9210 Hardware Reference Specifications PCB Mount Antenna Dimensions 55 RF Exposure Statement RF Exposure Statement The Digi Connect Wi-EM 9210 module complies with the RF exposure limits for humans as called out in RSS-102. It is exempt from RF evaluation based on its operating frequency of 2.4 GHz, and effective radiated power less than the 3 watt requirement for a mobile device (>20 cm separation) operating at 2.4 GHz. Safety Statements To avoid contact with electrical current: Never install electrical wiring during an electrical storm. Use a screwdriver and other tools with insulated handles. You and those around you should wear safety glasses or goggles. Installation of inside wire may bring you close to electrical wire, conduit, terminals and other electrical facilities. Extreme caution must be used to avoid electrical shock from such facilities. You must avoid contact with all such facilities. Protectors and grounding wire placed by the service provider must not be connected to, removed, or modified by the customer. Do not touch or move the antenna(s) while the unit is transmitting or receiving. Do not hold any component containing a radio such that the antenna is very close to or touching any exposed parts of the body, especially the face or eyes, while transmitting. Do not operate a portable transmitter near unshielded blasting caps or in an explosive environment unless it is a type especially qualified for such use Any external communications wiring you may install needs to be constructed to all relevant electrical codes. In the United States this is the National Electrical Code Article 800. Contact a licensed electrician for details. 56 Digi Connect Wi-EM 9210 Hardware Reference Specifications Notes to original equipment manufacturer (OEM ) integrators This device is intended only for OEM integrators under the following conditions: 1) The antenna must be installed such that 20 cm is maintained between the antenna and users for all installations, and 2) The transmitter module may not be co-located with any other transmitter or antenna, and 3) The Module is approved using the FCC ‘unlicensed modular transmitter approval’ method. Therefore the module must only be used with the originally approved antennas. As long as the 3 conditions above are met, further transmitter testing 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.). NOTE: In the event that any of these conditions can not be met (for example portable configurations, co-location with another transmitter, or use of a different antenna), then the FCC authorization is no longer considered valid and the FCC ID can not be used on the final product. In these circumstances, the OEM integrator will be responsible for reevaluating the end product (including the transmitter) and obtaining a separate FCC authorization. 57 Notes to original equipment manufacturer (OEM ) integrators 58 Digi Connect Wi-EM 9210 Hardware Reference Certifications These products comply with the following standards. FCC Part 15 Class B Radio Frequency Interference (RFI)(FCC 15.105) The Digi Connect Wi-EM 9210 embedded modules have been tested and found to comply with the limits for Class B digital devices pursuant to Part 15 Subpart B, of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential environment. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instruction manual, 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 and correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and the 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. 59 Industry Canada Labeling Requirements (FCC 15.19) This device complies with Part 15 of 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. If the FCC ID / IC ID is not visible when installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module FCC ID / IC ID. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: MCQ-501538” / IC: 1846A50M1538”. Modifications (FCC 15.21) Changes or modifications to this equipment not expressly approved by Digi may void the user's authority to operate this equipment. Industry Canada This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. Le present appareil numerique n'emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la class B prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada. 60 Digi Connect Wi-EM 9210 Hardware Reference Certifications Declaration of Conformity (In accordance with FCC Dockets 96-208 and 95-19) Manufacturer's Name: Digi International Corporate Headquarters: 11001 Bren Road East Minnetonka MN 55343 Manufacturing Headquarters: 10000 West 76th Street Eden Prairie MN 55344 Digi International declares, that the products:EM-02T-JT Product Name: Digi Connect Wi-EM 9210 Model Numbers: 50001538-xx to which this declaration relates, meet the requirements specified by the Federal Communications Commission as detailed in the following specifications: Part 15, Subpart B, for Class B Equipment FCC Docket 96-208 as it applies to Class B personal Computers and Peripherals The products listed above have been tested at an External Test Laboratory certified per FCC rules and has been found to meet the FCC, Part 15, Class B, Emission Limits. Documentation is on file and available from the Digi International Homologation Department. 61 International EMC Standards International EMC Standards The Digi Connect Wi-EM 9210 meet the following standards: 62 Standards Digi Connect Wi-EM 9210 Emmissions FCC Part 15 Subpart C RSS-210 Issue 7 and RSS-GEN Issue 2 FCC ID: MCQ-50M1538 IC: 1846A-50M1538 Immunity EN 55024 Safety UL 60950-1 CSA 22.2 No. 60950--1 EN 60950-1 Digi Connect Wi-EM 9210 Hardware Reference Sample Application: TTL Signals to EIA-232 The following schematic is an example of how to convert the module’s TTL signals to EIA-232. 63 64 Digi Connect EM & Wi-EM Hardware Reference RESET SWITCH GND 10 11 SOCKET 2X6 12 10 12 14 16 18 20 SOCKET2X10 11 13 15 17 19 GND V_ETHER- POWERED ETHERNET -- SEE PRODUCT DOCUMENTATION VOLTAGE INPUT -- REFER TO PRODUCT DOCUMENTATION V_ETHER+ GND ADDITIONAL SIGNALS / OPTIONAL GND 0.1uF 0.1uF 28 25 20 21 24 GND 27 23 18 17 13 2 26 22 19 15 16 12 14 0.1uF 0.1uF GND GND 10 SHIELD 11 SHIELD DB9 CONNECTOR PN (1P): 90000955 A
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