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Digi Connect SP Hardware Reference Manual

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Digi Connect SP  and
TM
Digi Connect Wi‐SP
TM
Hardware Reference
90000540_E

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Summary of Contents for Digi Connect SP

  • Page 1 Digi Connect SP  and Digi Connect Wi‐SP Hardware Reference 90000540_E...
  • Page 3 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.

  • Page 5: Table Of Contents

    Contents About This Guide ........................7 Purpose ..........................7 Related Documentation ....................7 Chapter 1: Introducing the Digi Connect SP & Digi Connect Wi-SP Hardware .... 9 Hardware Overview ......................9 LEDs..........................11 Reset Button ........................12 Antenna .......................... 13 MEI 232/422/485 Switch Settings .................
  • Page 6 C o n t e n t s Environmental........................ 26 Power Requirements ...................... 27 Mechanical ........................27 Antenna Information ...................... 28 RF Exposure Statement....................32 Overlay Specifications ....................33 Appendix B: Certifications ....................35 FCC Part 15 Class A ...................... 35 Industry Canada ......................

  • Page 7: About This Guide

    About This Guide Purpose The purpose of this guide is to assist developers creating custom embedded software for the Digi Connect SP and Digi Connect Wi-SP platform using the NET+OS operating system and tools. Related Documentation See the NS7520 Hardware Reference for information on the NS7520 chip.
  • Page 8 R e l a t e d D o c u m e n t a t i o n...

  • Page 9: Chapter 1: Introducing The Digi Connect Sp & Digi Connect Wi-Sp Hardware

    Introducing the Digi Connect SP & Digi Connect Wi-SP Hardware Hardware Overview The following figure identifies various Digi Connect SP and Digi Connect Wi-SP connectors, LEDs and switches.
  • Page 10 Reset button MEI switches and the Reset button are in the same location for both the Digi Note Connect SP and Digi Connect Wi-SP. D i g i C o n n e c t S P H a r d w a r e R e f e r e n c e...

  • Page 11: Leds

    Digi Connect Wi-SP Overview LEDs The Digi Connect SP and Digi Connect Wi-SP provide three LEDs. Two of the LEDs are connected directly to the hardware; the other is software programmable. See the following table for more information. LED Descriptions...

  • Page 12: Reset Button

    R e s e t B u t t o n LED Descriptions Color Purpose Network link status: – On - unit is associated with an access point Link Green – Blinking slowly - unit is in ad hoc mode –...

  • Page 13: Antenna

    Another option for both signal reception and design flexibility is to use a 30cm antenna extension cord (Digi part number DC-ANT-E-24DP) with .5dB loss to separate the antenna from the product..

  • Page 14: Db-9 Connector

    D B - 9 C o n n e c t o r If switch 4 is up, termination. If down, no termination. Up/On Down/Off EIA-422/485 EIA-485 EIA-232 Full-Duplex Half-Duplex DB-9 Connector The figure and table provide information on DB-9 pin orientation and pin assignments. DB-9 Pin Orientation Pin 1 Pin 5...

  • Page 15: Jtag Interface

    TXD- JTAG Interface The Digi Connect SP Development Kit is provided with the case opened, providing access to the JTAG interface which mates with a JTAG debugger plug (for example, the Macraigor Raven included in the kit). See the following table for pin assignments on the JTAG adapter block provided.

  • Page 16: Power Jack

    P o w e r J a c k Digi Connect SP JTAG Debugger Connector Power Jack The Power Jack is a barrel connector that accepts 9 to 30 VDC +/- 5%. The jack is labeled as P11 on the development board. The following table shows the polarity of the power jack.
  • Page 17 Power Jack Polarity, Schematic...
  • Page 18 P o w e r J a c k D i g i C o n n e c t S P H a r d w a r e R e f e r e n c e...

  • Page 19: Chapter 2: Programming Considerations

    Programming Considerations This chapter discusses programming consideration for the Digi Connect SP and Digi Connect Wi-SP and the NS7520 processor it is based on. GPIO General Information The NS7520 processor supports 16 general purpose I/O (GPIO) pins, some of which are reserved for specific functions and some of which can be customized.
  • Page 20 G P I O GPIO Registers Two registers, named PORTA and PORTC, govern the 16 GPIO pins. Each register is responsible for eight pins, and each GPIO pin uses the following four bits to completely describe its behavior: Mode (CMODE) Direction (CDIR) Special function (CSF).

  • Page 21: Gpio Pin Use

    GPIO Pin Use GPIO Pin Use External Register Bit Category Description Interface PORTA7 - PORTA0 Reserved PORTC7 Reserved Used as a power indicator (always on). It could be reassigned as a general purpose LED. It Connected to the PORTC6 Allocated must remain a GPIO output for the LED to red LED operate correctly.

  • Page 22: Flash

    Flash General Information Digi Connect SP and Digi Connect Wi-SP device servers each have 4 MB of flash memory, which is controlled by chip select 0, located at 0x02000000. Memory Digi Connect SP and Digi Connect Wi-SP device servers each have 16 MB of SDRAM memory, which is controlled by chip select 1, located at 0x00000000 in the processor address space and aliased at 0x04000000 and 0x08000000.

  • Page 23: Reset Button

    Reset Button The device servers have a push button connected to a GPIO pin. This pin is named "/INIT." In the processor, the GPIO register bit associated with "/INIT" is PORTC5. The GPIO pin will read as high normally, and low when the button is pushed. See "Reset Button"...
  • Page 24 R e s e t B u t t o n D i g i C o n n e c t S P H a r d w a r e R e f e r e n c e...

  • Page 25: Appendix A: Specifications

    Specifications Network Interfaces Digi Connect SP RJ-45 connector 10/100Base-T Half- and full-duplex support Digi Connect Wi-SP Standard: IEEE 802.11b Data Rate: Up to 11 Mbps with automatic fallback WEP (64-bit and 128-bit encryption) WPA (Wi-Fi Protected Access)/WPA2/802.11i Frequency: 2.4 GHz...

  • Page 26: Serial Interface

    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 Environmental Digi Connect SP Digi Connect Wi-SP F to 185 F to 185 Ambient Temperature (-40...

  • Page 27: Power Requirements

    S p e c i f i c a t i o n s Power Requirements The Digi Connect SP and Digi Connect Wi-SP must be powered by Note: a Listed LPS or Class II power supply rated 9-30 VDC, 0.37 A minimum.

  • Page 28: Antenna Information

    A n t e n n a I n f o r m a t i o n 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.
  • Page 29 105 x4.5 mm Weight 10.5g 11 g Connector RP-SMA RP-SMA Antenna Restriction in North America Only antennae of the same type listed on the FCC grant, with equal or lower antenna gain, may be used with the Digi Connect Wi-SP.
  • Page 30 A n t e n n a I n f o r m a t i o n Desktop Antenna Dimensions D i g i C o n n e c t S P H a r d w a r e R e f e r e n c e...
  • Page 31 S p e c i f i c a t i o n s Dipole Antenna Dimensions...

  • Page 32: Rf Exposure Statement

    R F E x p o s u r e S t a t e m e n t RF Exposure Statement The Digi Connect Wi-SP device 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 less than (<) 400 milliwatts.

  • Page 33: Overlay Specifications

    S p e c i f i c a t i o n s Overlay Specifications The following specifications are for the product overlays. Digi Connect Wi-SP Unit: inches...
  • Page 34 O v e r l a y S p e c i f i c a t i o n s Digi Connect SP Units: inches D i g i C o n n e c t S P H a r d w a r e R e f e r e n c e...

  • Page 35: Appendix B: Certifications

    Radio Frequency Interference (RFI) (FCC 15.105(a) The Digi Connect SP and Digi Connect Wi-SP have been tested and found to comply with the limits for Class A digital devices pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

  • Page 36: Industry Canada

    I n d u s t r y C a n a d a 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. Cables (FCC 15.27) Shielded cables must be used to remain within the Class A limitations.

  • Page 37: International Emc Standards

    C e r t i f i c a t i o n s International EMC Standards The Digi Connect SP and Digi Connect Wi-SP meet the following standards. Digi Connect Digi Connect SP Standards Wi-SP AS/NZS 3548 CISPR 22...
  • Page 38 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 D i g i C o n n e c t S P H a r d w a r e R e f e r e n c e...

  • Page 39: Appendix C: Change Log

    Change Log The following changes have been made since the last release of this document. Revision D Updated Antenna drawing Changed antenna restriction in North America Added product weight Revision C Changed RAM from 8 MB to 16 MB. Added overlay drawings. Added desktop antenna information.
  • Page 40 R e v i s i o n C D i g i C o n n e c t S P H a r d w a r e R e f e r e n c e...

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