1. Manuals
  2. Brands
  3. Digi Manuals
  4. Control Unit
  5. Digi Conntect ME
  6. Hardware reference manual

Digi Conntect ME Hardware Reference Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
’’ ˜——ŽŒ 
’’ ˜——ŽŒ ’ 
Š› Š›Ž ŽŽ›Ž—ŒŽ
90000631_A

Advertisement

Table of Contents
loading

Related Manuals for Digi Digi Conntect ME

Summary of Contents for Digi Digi Conntect ME

  • Page 1 ’’ ˜——ŽŒ  ’’ ˜——ŽŒ ’  Š› Š›Ž ŽŽ›Ž—ŒŽ 90000631_A...
  • Page 3 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.

  • Page 5: Table Of Contents

    Kits Contents ........................7 Related Documentation ....................8 Support Information ......................8 Chapter 1: About the Digi Connect ME & Digi Connect Wi-ME Embedded Modules . 9 Overview .......................... 9 Types of Modules......................10 Connectors: Power and Device Interface ............... 12 Connectors: Ethernet Interface..................
  • Page 6 Flash ..........................40 Appendix A Module Specifications..................41 Network Interface ......................41 Serial Interface ....................... 42 Data Rates (bps) ......................42 Flow Control Options..................... 42 GPIO ..........................42 DC Characteristics ......................43 Environmental........................ 44 Mechanical ........................45 Dimensions........................46 Recommended PCB Layout................... 51 Antenna Information ......................

  • Page 7: About This Document

    • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Scope of the Reference Manual The purpose of this document is to enable developers to integrate the Digi Connect ME or Digi Connect Wi-ME embedded modules with other devices, enabling these devices to make use of the module’s rich networking features.

  • Page 8: Related Documentation

    See the NS7520 Hardware Reference for information on the NS7520 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...

  • Page 9: Chapter 1: About The Digi Connect Me & Digi Connect Wi-Me Embedded Modules

    About the Digi Connect ME & Digi Connect Wi-ME Embedded Modules Overview The embedded modules provide fully transparent device connectivity over industry- standard Ethernet connections and allows both equipment manufacturers and systems integrators to network-enable products at a fraction of the time and cost required to develop a custom solution.

  • Page 10: Types Of Modules

    Test Action Group, which invented the first versions of the IEEE 1149.1 interface. The JTAG interface, along with the other development tools, enables you to download, run and debug programs on the module. The following figures show the two types of modules. Digi Connect ME Modules Model Description Figure Ã...
  • Page 11 A b o u t t h e D i g i C o n n e c t M E & D i g i C o n n e c t W i - M E E m b e d d e d M o d u l e s Digi Connect ME Modules...

  • Page 12: Connectors: Power And Device Interface

    230,400 bps and full-modem control, and GPIO ports. See the following figure for pin orientation and the table for pin assignments. Digi recommends 100 pF capacitors to circuit ground on all inputs and outputs Note to the module for ESD immunity. This includes the power pass-thru pins if they are not used.

  • Page 13: Connectors: Ethernet Interface

    A b o u t t h e D i g i C o n n e c t M E & D i g i C o n n e c t W i - M E E m b e d d e d M o d u l e s Power and Device Interface Connector Pin Assignments Signal Description...
  • Page 14 C o n n e c t o r s : E t h e r n e t I n t e r f a c e Ethernet Interface Pin Orientation Pin 8 Pin 1 Ethernet Interface Pin Assignments TXD+ TXD- RXD+...

  • Page 15: Connectors: Antenna

    The antenna only fits on the module one way to ensure a proper connection. Another option for both signal reception and design flexibility is to use a "pig tail" cable (Digi part number DC-ANT-EC) to separate the antenna from the module. This allows the module to fit inside your product but the antenna to be placed outside the device.
  • Page 16 M o d u l e L E D s LED Locations LED Descriptions Color Description Network Link is operational: On (continuously) indicates that an Ethernet Network Link (left-upper) Yellow connection is made or an access point is engaged. Network Activity: On when network traffic detected;...

  • Page 17: Chapter 2: About The Development Board

    About the Development Board Overview The development board is a hardware platform from which you can determine how to integrate the embedded modules into your design. The board consists of the following main features: Socket for connecting the embedded modules JTAG connection (for use with the development kit only) GPIO switches Serial and GPIO ports...

  • Page 18: Basic Description

    B a s i c D e s c r i p t i o n "Test points" on page 33 Basic Description The development board contains connectors, switches, and LEDs for use while integrating the embedded module into your design. See the following figure for the location of the connectors, switches, and LEDs.
  • Page 19 A b o u t t h e D e v e l o p m e n t B o a r d Connectors, Switches and LEDs 1-8 Jumper Embedded Secondary LEDs, GPIO Switch GPIO Switch JTAG JTAG Block, P12 Module Serial Port, P2 CR1 -CR9...

  • Page 20: Port Descriptions

    P o r t D e s c r i p t i o n s Placement of Module Module with JTAG connector Development board Module connector Module JTAG connector If you handle the module, wear a grounding wrist strap to avoid ESD Caution damage.
  • Page 21 The Secondary Serial Port is a DB-9 male connector that is labeled as P2 on the development board. The port is used only with the Digi Connect ME modules with JTAG interfaces (in the development kit) for debugging purposes. See the following figure for pin...
  • Page 22 P o r t D e s c r i p t i o n s Secondary Serial Port Pin Orientation Pin 1 Pin 5 Pin 6 Pin 9 Secondary Serial Port Pin Assignments — — — — — — —...

  • Page 23: Connectors And Blocks

    The following sections describe the connectors and blocks. Embedded Module Connector, P7 The Digi Connect ME embedded module Connector is a 20-pin female vertical header that is labeled P7 on the development board. The connector is used with the integration kit and...
  • Page 24 Embedded Module Connector Pin Orientation Pin 19 Pin 20 Pin 1 Pin 2 Module Connector Pin Assignments Signal Description VETH+ Power Pass-Thru + Unused on Digi Connect Wi-ME VETH- Power Pass-Thru - — Position Removed — Position Removed — Position Removed —...
  • Page 25 The Module JTAG Interface Connector is a 14-pin female vertical header that is labeled P8 on the development board. The connector mates with the JTAG connector on the Digi Connect ME embedded module. The Module JTAG Connector pins are tied to the JTAG debugger Connector (see “JTAG Debugger Connector, P4”).
  • Page 26 C o n n e c t o r s a n d B l o c k s JTAG Debugger Connector, P4 The JTAG debugger connector is a 14-pin male vertical header that is labeled P4 on the development board. The connector mates with a JTAG debugger plug (for example, a Macraigor Raven).

  • Page 27: Switches

    A b o u t t h e D e v e l o p m e n t B o a r d only. See the following figure for pin orientation; see the following table for pin assignments. The figure shows the connector using the same orientation as shown in the Note figure titled "Board Layout"...
  • Page 28 S w i t c h e s GPIO Switch Bank 1, SW1 GPIO Switch Bank 1, labeled SW1, is a set of five slide switches that allows the Digi Connect ME embedded module to use either serial signals or GPIO signals to communicate with a device.
  • Page 29 GPIO Switch Bank 1, SW1. Reset, SW3 The Reset switch is a push button switch labeled SW3 on the development board. Pressing the switch holds the Digi Connect ME embedded module in reset. When the push button is released, the module reboots.

  • Page 30: Development Board Leds

    D e v e l o p m e n t B o a r d L E D s Development Board LEDs The development board contains 17 LEDs that are labeled CR1 through CR17. The following table lists and describes the LEDs. Development Board LED Descriptions Board Color or...
  • Page 31 A b o u t t h e D e v e l o p m e n t B o a r d Development Board LED Descriptions Board Color or Indication Description Label State Yellow Active Green Inactive RTS, Primary Serial Port Not connected or signal not being driven Yellow...

  • Page 32: Power Jack

    P o w e r J a c k Development Board LED Descriptions Board Color or Indication Description Label State Logic high CR13 GPIO-4 Input/Output Logic low Logic high CR14 GPIO-5 Input/Output Logic low Power on CR15 3.3V Indicator Power off Power on CR16 5V Indicator...

  • Page 33: Test Points

    A b o u t t h e D e v e l o p m e n t B o a r d Power Jack Polarity Contact Polarity Center +9 to +30 VDC Outer Ground The following figure schematically represents the polarity of the power jack. Power Jack Polarity, Schematic Ground +9 to +30 VDC...
  • Page 34 T e s t p o i n t s Test Point Descriptions Test Board Label Description Point TXD-2, Transmit, Secondary Serial Port RXD-2, Receive, Secondary Serial Port CTS, Primary Serial Port DTR, Primary Serial Port TXD, Primary Serial Port RXD, Primary Serial Port RTS, Primary Serial Port DCD, Primary Serial Port...

  • Page 35: Chapter 3: Programming Considerations

    Programming Considerations Overview This chapter provides information programmers may require to make use of some Digi Connect ME hardware resources. It provides information on the following topics: "GPIO" on page 36 "LEDs" on page 38 "Reset" on page 38 "Flash" on page 40...

  • Page 36: Gpio

    G P I O GPIO General Information The NS7520 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 might not operate correctly.
  • Page 37 P r o g r a m m i n g C o n s i d e r a t i o n s Digi Connect ME GPIO pin use Register External Name Category Description Interface Serial Pin 8 on the 20 pin Used for serial transmit.

  • Page 38: Leds

    (PORTC6) as an output and then uses this LED to represent Ethernet activity. For more information regarding the control of LEDs, see the Net+Works with GNU Tools BSP Porting Guide. About Digi Connect ME LEDs Description Yellow This is wired directly to Ethernet hardware and provides an indication of link.
  • Page 39 One choice is to use a GPIO pin as a signal to trigger a soft reset. The Digi Connect ME has one GPIO pin named "/INIT” (PORTC5) that is not normally assigned to any other task. It is an ideal candidate for a soft reset.

  • Page 40: Flash

    F l a s h Flash General Information The Digi Connect ME has 2 MB of flash memory. The Digi Connect Wi-ME has 4 MB of flash memory. In both modules the flash memory is controlled by chip select 0, located at 0x02000000.

  • Page 41: Appendix A Module Specifications

    Module Specifications Network Interface Digi Connect ME Digi Connect Wi-ME Standard: IEEE 802.3 Standard: IEEE 802.11b Physical Layer: 10/100Base-T Frequency: 2.4 GHz Data Rate: 10/100Mbps Data Rate: Up to 11 Mbps with (auto-sensing) automatic fallback Mode: Half-duplex and full-duplex Modulation: CCK (11/5 Mbps),...

  • Page 42: Serial Interface

    S e r i a l I n t e r f a c e Serial Interface One TTL serial interface (CMOS 3.3v) with full modem control signals (DTR, DSR, DCD, RTS, CTS). Data Rates (bps) 50, 110, 134, 150, 200, 300, 600, 1200, 2400, 3600, 4800, 9600, 19200, 38400, 57600, 115200, 230400 Flow Control Options RTS/CTS, XON/XOFF, None...

  • Page 43: Dc Characteristics

    M o d u l e S p e c i f i c a t i o n s DC Characteristics The following tables provide DC characteristics for operating conditions, inputs, and outputs. Operating Conditions Symbol Description Unit Supply Voltage 3.14 3.45 Digi Connec Supply Current — — Digi Connec Wi-EM Input Current as “0” — µA —...

  • Page 44: Environmental

    When power rises above 2.88V, the reset remains for approximately 250 ms to allow the system clock and other circuits to stabilize. Environmental Digi Connect ME Digi Connect Wi-ME F to 185 F to 185...

  • Page 45: Mechanical

    M o d u l e S p e c i f i c a t i o n s Mechanical Digi Connect Digi Connect Dimensions Wi-ME 1.445 in. 1.945 in Length (36.703 mm) (49.4 mm) 0.75 in. Width (19.05 mm) 0.735 in.

  • Page 46: Dimensions

    D i m e n s i o n s Dimensions The following figures show the dimensions of Digi Connect Wi-ME and Digi Connect ME embedded modules. Digi Connect Wi-ME Module Front D i g i C o n n e c t W i - M E & D i g i C o n n e c t M E H a r d w a r e R e f e r e n c e...
  • Page 47 M o d u l e S p e c i f i c a t i o n s Bottom...
  • Page 48 D i m e n s i o n s Side D i g i C o n n e c t W i - M E & D i g i C o n n e c t M E H a r d w a r e R e f e r e n c e...
  • Page 49 M o d u l e S p e c i f i c a t i o n s Digi Connect ME Module Front View...
  • Page 50 D i m e n s i o n s Bottom D i g i C o n n e c t W i - M E & D i g i C o n n e c t M E H a r d w a r e R e f e r e n c e...

  • Page 51: Recommended Pcb Layout

    Side Recommended PCB Layout The following figure shows the recommended PCB (printed circuit board) layout of the Digi Connect Wi-ME and Digi Connect ME. It is strongly recommended that you consider using the Digi Connect Wi-ME footprint for future flexibility.
  • Page 52 R e c o m m e n d e d P C B L a y o u t Digi Connect Wi-ME Digi Connect ME D i g i C o n n e c t W i - M E & D i g i C o n n e c t M E H a r d w a r e R e f e r e n c e...

  • Page 53: Antenna Information

    M o d u l e S p e c i f i c a t i o n s Antenna Information Antenna Strength The following diagram demonstrates the strength of the signal received by the whip antenna on both a horizontal and vertical plane. The diagram shows the magnetic field when the antenna is in a vertical position.

  • Page 54: Rf Exposure Statement

    Antenna Details RF Exposure Statement The Digi Connect Wi-ME 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 2400 MHz, and effective radiated power of 100 milliwatts. This would be less than the 3 watt requirement for a mobile device (>20 cm separation) operating at 2400 MHz.

  • Page 55: Safety Statements

    M o d u l e S p e c i f i c a t i o n s Safety Statements To avoid contact with electrical current: Never install electrical wiring during an electrical storm. Never install an ethernet connection in wet locations unless that connector is specifically designed for wet locations.
  • Page 56 S a f e t y S t a t e m e n t s 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.

  • Page 57: Appendix B Certifications

    FCC Part 15 Class B Radio Frequency Interference (RFI)(FCC 15.105) The Digi Connect ME embedded module has 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.

  • Page 58: Industry Canada

    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.

  • Page 59: Declaration Of Conformity

    The product listed above has 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.

  • Page 60: International Emc Standards

    I n t e r n a t i o n a l E M C S t a n d a r d s International EMC Standards The Digi Connect ME and Digi Connect Wi-ME embedded modules meet the following electromagnetic emissions standards:...

  • Page 61: Appendix C Sample Application: Ttl Signals To Eia-232

    Sample Application: TTL Signals to EIA-232 The following schematic is an example of how to convert the modules’s TTL signals to EIA-232.
  • Page 62 D i g i C o n n e c t E M & W i - E M H a r d w a r e R e f e r e n c e...

This manual is also suitable for:

Digi conntect wi-me

Table of Contents