Digi CCIMX28 802.11a/b/g/n Embedded Client Module User Manual ConnectCore for i MX28 HRM

Digi International Inc 802.11a/b/g/n Embedded Client Module ConnectCore for i MX28 HRM

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1. Hardware Reference
2. Manual

Hardware Reference

ConnectCore™ for i.MX28™Hardware Reference90002181_C4/24/2013

Contents© 2013 Digi International, Inc. 3Chapter 1: ConnectCard for i.MX28 Features and Functionality12i.MX28 Features and Functionality......................................... 13Block Diagram ................................................................. 14CPU - Freescale i.MX28X ................................................... 14ConnectCard for i.MX28 .................................................... 15Module Pinout ................................................................. 1652-Pin PCle Edge Connector ............................................... 16Pinout .........................................................................16Available Features............................................................ 19Available Features - i.MX280 and i.MX287 ............................... 19Thermal Considerations ..................................................... 2031 Pin LCD, JTAG, and ETM Connector.................................... 20Standard 18 Bit Color Pinout ..............................................2124 bit Color Pinout (without JTAG) ....................................... 22Module Operation ...........................................................23DC Power .....................................................................23Thermal Considerations ....................................................23System Boot .................................................................. 23Audio System .................................................................24LCD System ...................................................................24GPIO ...........................................................................24Interfaces ..................................................................... 25Chapter 2: About the Development Board ..................... 30What’s on the Development Board? ....................................... 30The Development Board ....................................................32Development Board Set Up.................................................. 36Power Supplies ............................................................... 36Power over Ethernet (PoE) - IEEE802.3af ................................ 37The PoE Module .............................................................. 38PoE Connector (power in), P28 ............................................39PoE Connector (power out), P33 .......................................... 39Connector, Switch, and Jumper Locations ............................... 40Power Functions and Settings ............................................. 41Boot Mode ..................................................................... 41Switch Location ............................................................... 42Function and Settings .......................................................43Development Board Button Functions ..................................... 43XBEE RESET BUTTON and XBEE COMM BUTTON ......................... 43

Contents© 2013 Digi International, Inc. 4USER BUTTON1 and USER BUTTON2 ...................................... 43CCi.MX28 RESET BUTTON ..................................................43CCi.MX28 POWER BUTTON .................................................43CCi.MX28 RECOVERY BUTTON ............................................. 43Button Locations.............................................................. 44DUART (Console) and I2C0 .................................................. 45Connector and Switch Locations .......................................... 45Functions and Settings .....................................................46AUART1, ENET0, LRADC4, LRADC5, and User LEDs ...................... 46AUART1 ....................................................................... 46ENET0 .........................................................................46LRADC4 & LRADC5 ........................................................... 46User LEDs ..................................................................... 46Connector and Switch Locations .......................................... 47Function and Settings .......................................................47AUART4, SSP3, I2S (Audio), LRADC6, and XBee .......................... 49AUART4 ....................................................................... 49SSP3 ...........................................................................49I2S (Audio) ....................................................................49LRADC6 ........................................................................ 49XBee ...........................................................................49Connector and Switch Locations .......................................... 50Function and Settings Table - AUART4 ................................... 51Function and Settings Table - SSP3 ....................................... 51Function and Settings Table - I2S ......................................... 52Function and Settings Table - XBee ......................................53Function and Settings Table - LRADC6 ................................... 53AUART2 (TTL), AUART3 (TTL), CAN1, ETHERNET (ENET1), and USB Host (USB1) 55AUART2 (TTL) ................................................................55AUART3 ....................................................................... 55CAN1 ...........................................................................55ETHERNET ....................................................................55USB HOST (USB1) ............................................................55Connector, Switch, and Jumper Locations ..............................56Function and Settings Table - AUART3 ................................... 57Function and Settings Table - CAN1 ...................................... 57Function and Settings Table - ENET1 ..................................... 57Function and Settings Table - USB1 ......................................58SD CARD, SSP1, LRADC0, LRADC1, LRADC2, and LRADC3 ............... 59SD CARD ....................................................................... 59

Contents© 2013 Digi International, Inc. 5SSP1 ...........................................................................59LRADC0, LRADC1, LRADC2 and LRADC3 ..................................59Connector, Switch, and Jumper Locations ..............................59Function and Settings Table - SSP1 ....................................... 60Function and Settings Table - LRADC0-3 .................................60CAN0, HSADC, AND1-Wire ................................................... 61CAN0 ...........................................................................61HSADC .........................................................................611-Wire .........................................................................61Connector, Switch, and Jumper Locations ..............................62Function and Settings Table .............................................. 62LCD, ETM, JTAG, USB OTG (USB0) ......................................... 63Connector and Jumper Locations ......................................... 63Functions and Settings .....................................................63Chapter 3: Certifications................................................ 65Agency Certifications ........................................................ 65United States FCC ...........................................................65FCC-Approved Antennas ....................................................66Antennas Approved for Use with the ConnectCard™ for i.MX28 Wi-Fi Modules 67RF Exposure .................................................................. 67Europe (ETSI) .................................................................. 67OEM Lebeling Requirements ............................................... 68Restrictions ...................................................................68Canada (IC) .................................................................... 69Labeling Requirements ..................................................... 69Transmitters with Detachable Antennas .................................69Detachable Antenna ........................................................ 70Australia (C-Tick) ............................................................. 70Appendix A: Module Specifications ....... 71Mechanical Specifications ................................................... 71Dimensional Drawing ........................................................71Environmental Specifications .............................................. 71Network Interface ............................................................ 72Digi part number A24-HASM-450 .......................................... 72Digi part number 29000146 ................................................73Taoglas PC.11.07.0100A ...................................................74Taoglas FXP.830.07.0100C ................................................76Ethernet 2 ....................................................................78

Contents© 2013 Digi International, Inc. 6WLAN ..........................................................................785GHz HT20 AND HT40 Channels Available ............................... 81Receive Sensitivity ..........................................................82Electrical Characteristics.................................................... 82Absolute Maximum Ratings ................................................ 82Voltage Supplies .............................................................83Supply Current ............................................................... 83Transmit Power ..............................................................83GPIO DC Parameters ........................................................ 83Agency Approvals ............................................................. 84Appendix B: Module Dimensions ........... 85 .................................................................................85Appendix C: Change Log ..................... 86Revision 0.1.................................................................... 86

© 2013 Digi International, Inc. 7Using this Guide This guide provides information about the Digi ConnectCore™ for i.MX28 embedded core module family.Conventions used in this guideThis table describes the typographic conventions used in this guide:Digi Information Document UpdatesPlease always check the product specific section on the Digi support website at www.digiembedded.com/support for the most current revision of this document.Contact Information For more information about your Digi products, or for customer service and technical support, contact Digi International.Additional Resources Please also refer to the most recent Freescale® i.MX28 Application Processor Reference Manual and related documentation (available on the Freescale web site) for additional information.This convention Is used foritalic type Emphasis, new terms, variables, and document titles.monospaced type Filenames, pathnames, and code examples.To contact Digi International by UseMail Digi International 1101 Bren Road EastMinnetonka, MN 55343U.S.A.Internet http://www.digiembedded.com/support/Telephone (U.S.) (952) 912-3444 or (877) 912-3444Telephone (other locations) +1 (952) 912-3444 or (877) 912-3444

© 2013 Digi International, Inc. 8ConnectCard for i.MX28 Features and FunctionalityCHAPTER 1The ConnectCard™ for i.MX28 is a cost-effective, small-footprint wireless embedded module solution that is designed for connected devices in healthcare and other markets. The module is based on the Freescale® i.MX28 processor family with a high-performance ARM 9 core, multimedia options, and a complete set of peripherals.Combined with a Qualcom-Atheros 802.11 and Bluetooth module featuring data rates up to 150Mbps the ConnectCard for i.MX28 is capable of communicating with a vast number of peripheral devices over many different networks.The module combines the fast integration, reliability and design flexibility of an off-the-shelf System-on Module (SOM) with complete out-of-the-box software development support for platforms such as Digi® Embedded Linux ®and Timesys® LinuxLink®.Complete and cost-efficient Digi Jump Start Kits™ Linux allows immediate and professional embedded product development with dramatically reduced design risk and time-to-market.

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 9i.MX28 Features and FunctionalityThe ConnectCard for i.MX28 module is based on the i.MX28 processor series from Freescale. This processor offers a high number of interfaces. Most of these interfaces are multiplexed and are not available simultaneously. Not all features are available on all variations of the module. More in-depth information can be found in the "i.MX28 Application Processor Reference Manual" on the Freescale web site. The i.MX28 processor uses an ARM 926 core with on-chip RISC (Reduced Instruction Set Computer). The ConnectCard for i.MX28 module has the following i.MX28 features: LRADC (Low Resolution ADC)HSADC (High Speed ADC)GPIO (General Purpose Input Output)SD/SDIO/MMC (Secure Digital/ Secure Digital Input Output/ Multi-Media Card)UART (Universal Asynchronous Receiver/Transmitter)DUART (Debug Universal Asynchronous Receiver/Transmitter)SPI (Serial Peripheral Interface)I2C (Inter-Integrated Circuit)CAN (Controller Area Network)USB OTG (Universal Serial Bus On-the-Go)USB Host (Universal Serial Bus)ENET (Ethernet)SAIF (Serial Audio Interface)PWM (Pulse Width Modulator)LCD (Liquid Crystal Display)ETM (Embedded Trace Macrocell)JTAG (Joint Test Action Group)802.11 abgn and BluetoothFlash MemoryDDR2 MemoryOne-Wire InterfacePower supply options - Battery and DC

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 10Block DiagramThe following figures show the block diagram of the Freescale i.MX285 CPU and the block diagram of the ConnectCore for i.MX28 module.CPU - Freescale i.MX28X

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 11ConnectCard for i.MX28

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 12Module PinoutThe module has 2 connectors. The 52 pin PCIe edge connector, and the 31 pin LCD connector.52-Pin PCle Edge ConnectorThe top side of the module has the shield on it and the bottom side of the module has the i.MX28X on it. Pin numbering is shown below: PinoutPin Pin Name Avail. on i.MX287Avail. on i.MX280Mux 0 Mux 1 Mux 2 Mux 31ENET0_TX+ X X3ENET0_TX- X X5GND X X7AUART4_CTS X X SAIF0_MCLK PWM_3 AUART4_CTS GPIO3_20XSSP3_SS0 AUART4_CTS ENET1_1588_EVENT1_INGPIO3_279AUART4_RTS X X SAIF0_LRCLK PWM4 AUART4_RST GPIO3_21XSSP3_MOSI AUART4_RX ENET1_1588_EVENT0_INGPIO3_2511 AUART4_RX X X SAIF0_BITCLK PWM_5 AUART4_RX GPIO3_22XSSP3_MISO AUART4_RTS ENET1_1588_EVENT1_OUTGPIO3_2613 AUART4_TX X X SAIF0_SDAT0 PWM_6 AUART4_TX GPIO3_23XSSP3_SCK AUART4_TX ENET1_1588_EVENT0_OUTGPIO3_24

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 1315 Pswitch X XGAP17 USB0_DM X X19 USB0_DP X X21 USB0_ID X X PWM_2 USB0_ID USB1_OVERCURRENTGPIO3_1823 Battery X X25 HSADC0 X X HSADC027 CAN0_RX XGPMI_READY3 CAN0_RX HSADC_TRIGGER GPIO0_2329 CAN0_TX XGPMI_READY2 CAN0_TX ENET0_TX_ER GPIO0_2231 SSP1_SS XSSP1_SS SSP2_D7 ENET0_1588_EVENT3_INGPIO2_15X X LRADC033 SSP1_MOSI XSSP1_MOSI SSP2_D2 ENET0_1588_EVENT2_INGPIO2_13X X LRADC135 SSP1_MISO XSSP1_MISO SSP2_D6 ENET0_1588_EVENT3_OUTGPIO2_14X X LRADC237 SSP1_SCK XSSP1_SCK SSP2_D1 ENET0_1588_EVENT2_OUTGPIO2_12X X LRADC339 AUART1_CTS XAUART1_CTS USB0_OVERCURRENTTIMROT_ROTARYA GPIO3_6X X LRADC441 AUART1_RTS XAUART1_RTS USB0_ID TIMROT_ROTARYA GPIO3_7X X LRADC543 AUART1_TX X X AUART1_TX SSP3_CARD_DETECTPWM1 GPIO3_545 AUART1_RX X X AUART1_RX SSP2_CARD_DETECTPWM0 GPIO3_447 GND X X49 ENET1_TX+ X51 ENET1_TX- X2ENET0_RX+ X XPin Pin Name Avail. on i.MX287Avail. on i.MX280Mux 0 Mux 1 Mux 2 Mux 3

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 144ENET0_RX- X X6VDD_5V X X8I2C1_SCL X X PWM0 I2C1_SCL DUART_RX GPIO3_1710 I2C1_SDA X X PWM1 I2C1_SDA DUART_TX GPIO3_1612 DUART_RX X X I2C0_SCL TIMROT_ROTARYA DUART_RX GPIO3_2414 DUART_TX X X I2C0_SDA TIMROT_ROTARYB DUART_TX GPIO3_2516 RESET X XGAP18 SSP0_CMD X X SSP0_CMD GPIO2_820 SSP0_DATA0 X X SSP0_DATA0 GPIO2_022 SSP0_DATA1 X X SSP0_DATA1 GPIO2_1XAUART3_CTS CAN1_TX ENET0_1588_EVENT1_OUTGPIO3_1424 SSP0_DATA2 X X SSP0_DATA2 GPIO2_2XAUART3_RTS CAN1_RX ENET0_1588_EVENT1_INGPIO3_1526 SSP0_DATA3 X X SSP0_DATA3 GPIO2_328 SSP0_SCLK X X SSP0_SCK GPIO2_1030 SSP0_CARD_DETECTX X SSP0_CARD_DETECTGPIO2_932 LRADC6 / SAIF1_DATA0X X LRADC6X X LCD_VSYNC SAIF1_DATA0 GPIO_1_2834 i.MX28 3.3V OutputX X36 AUART2_CTS XAUART2_CTS I2C1_SCL SAIF1_BITCLK GPIO3_10One-Wire X X38 AUART2_RTS XAUART2_RTS I2C1_SDA SAIF1_LRCLK GPIO3_1140 AUART2_RX XAUART2_RX SSP2_D2 SSP3_D5 GPIO3_842 AUART2_TX XAUART2_TX SSP3_D1 SSP3_D4 GPIO3_944 CAN1_RX XGPMI_CE3N CAN1_RX SAIF1_MCLK GPIO0_19XAUART3_RX CAN0_TX ENET0_1588_EVENT0_OUTGPIO3_13Pin Pin Name Avail. on i.MX287Avail. on i.MX280Mux 0 Mux 1 Mux 2 Mux 3

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 15Available FeaturesStandard variants are available with either the i.MX280 or i.MX287. Not all features are available on all variants. For custom variants see your Digi International sales person.Available Features - i.MX280 and i.MX28746 CAN1_TX XGPMI_CE2N CAN1_TX ENET0_RX_ER GPIO0_18XAUART3_TX CAN0_RX ENET0_1588_EVENT0_INGPIO3_1248 VDD_5V X X50 ENET1_RX+ XUSB1_DM XUSB1_DM52 ENET1_RX- XUSB1_DP XUSB1_DPFunction i.MX280 i.MX287LCD Interface -YesTouch Screen -YesEthernet x1 x2L2 Switch -YesCAN -x212-bit ADC x8 x8High-speed ADC x1 x1USB 2.0 OTG HS with HS PHY x1OTG HS with HS PHY x1HS Host with HS PHY x1HS Host with HS PHY x1SDIO x4 x4SPI x4 x4Application UART x6 x5Debug UART x1 x1PWM -x8S/PDIF Tx -YesSecurity Yes YesPin Pin Name Avail. on i.MX287Avail. on i.MX280Mux 0 Mux 1 Mux 2 Mux 3

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 16Thermal ConsiderationsHeat dissipation of the i.MX28 processor is highly dependent on the selected clock speed and the peripherals it is supporting. Freescale specifies the maximum allowed junction temperature of the processor to be limited to 105C, which translates to the following processor case temperatures:The ConnectCard for i.MX28 has been built to function up to 65C at full clock speed without a thermal pad attached (not included in the development kit) between the processor and the development board, and has been checked up to 75C with the thermal pad attached. There is a large ground area left open under the module on the development board under the module to accommodate the thermal pad. Bergquist makes thermal pad material in various thicknesses. The CCi.MX28 has been characterized using a combination of 2500S20 and 2000S40 pads from Bergquist. Designs using the ConnectCard for i.MX28 need to ensure that the rating maximums above are not exceeded in the application. Case temperature can be measured using an external probe on the center of the i.MX28 processor package, and the junction temperature can be monitored in software through an on-die temperature sensor provided in the i.MX processor.Because of the limitation above, active and/or passive thermal management may be required (thermal pad, airflow, clocking, etc.) like the Bergquist 2500s20 and 2000S40 thermal pads.For more information on thermal consideration with the i.MX28 processor see the Freescale i.MX28 data sheet.31 Pin LCD, JTAG, and ETM ConnectorThe module uses a 31 pin ZIF connector for the LCD, JTAG and ETM connections. These pins can also be used for GPIO functions. A list of possible connectors is shown below, the list is not all inclusive:The standard connection is 18 bit color, and the CC-WMX-PF58-TK-JT comes with this option.Processor Speed Max Ambient Temperature w/o Thermal PadMax Case Temperature454 MHz 59 C 84 C360 MHz 68 C 88 C261 MHz 69 C 88 C64 MHz 99 C 102 CManufacturer Part NumberFCI SFV31R-1STE1HLFFCI SFV31R-1STE1LFTYCO ELECTRONICS 3-1734839-1

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 17Standard 18 Bit Color PinoutPin Pin Name i.MX28 Mux 0 Mux 1 Mux 2 Mux 31LCD_DOTCLK N1 LCD_DOTCLK SAIF1_MCLK ETM_TCLK GPIO1_302LCD_VSYNC M6 LCD_RESET LCD_VSYNC LCD_RESET / LCD_VSYNCGPIO3_313LCD_HSYNC M1 LCD_HSYNC SAIF1_SDATA1 EMT_TCTL GPIO1_294LCD_ENABLE N5 LCD_ENABLE LCD_ENABLE GPIO1_255LCD_WR_RWN / ETM_TCLKK1 LCD_WR_RWN LCD_HSYNC ETM_TCLK GPIO1_326LCD_D17 R3 LCD_D17 ETM_DA6 GPIO1_177LCD_D16 T3 LCD_D16 ETM_DA16 GPIO1_168LCD_D15 / ETM_DA15 U3 LCD_D15 ETM_DA15 GPIO1_159LCD_D14 / ETM_DA14 U2 LCD_D14 ETM_DA14 GPIO1_1410 LCD_D13 / ETM_DA13 T2 LCD_D13 ETM_DA13 GPIO1_1311 LCD_D12 / ETM_DA12 T1 LCD_D12 ETM_DA12 GPIO1_1212 LCD_D11 / ETM_DA11 R2 LCD_D11 ETM_DA11 GPIO1_1113 LCD_D10 / ETM_DA10 R1 LCD_D10 ETM_DA10 GPIO1_1014 LCD_D09 / ETM_DA9 P3 LCD_D09 ETM_DA4 ETM_DA9 GPIO1_015 LCD_D08 / ETM_DA8 P2 LCD_D08 ETM_DA3 ETM_DA8 GPIO1_816 LCD_D07 / ETM_DA7 P1 LCD_D07 ETM_DA7 GPIO1_717 LCD_D06 / ETM_DA6 N2 LCD_D06 ETM_DA6 GPIO1-618 LCD_D05 / ETM_DA5 M3 LCD_D05 ETM_DA5 GPIO1_519 LCD_D04 / ETM_DA4 M2 LCD_D04 ETM_DA9 ETM_DA4 GPIO1_420 LCD_D03 / ETM_DA3 L3 LCD_D03 ETM_DA8 ETM_DA3 GPIO1_321 LCD_D02 / ETM_DA2 L2 LCD_D02 ETM_DA2 GPIO1_222 LCD_D01 / ETM_DA1 K3 LCD_D01 ETM_DA1 GPIO1_123 LCD_D00 / ETM_DA0 K2 LCD_D00 ETM_DA0 GPIO1_024 ETM_TCTL P4 LCD_RD_E LCD_VSYNC ETM_TCTL GPIO1_2425 LCD_CS / Touch_InterruptP5 LCD_CS GPIO1_2726 JTAG_TRST# D14 JTAG_RTCK27 JTAG_TMS D1228 JTAG_TDO E1329 JTAG_TDI E12

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 18Provisions have been made on the module for 24 bit color without the JTAG connections.24 bit Color Pinout (without JTAG)30 JTAG_TCK E1131 JTAG_RTCK E14Pin Pin Name i.MX28 PinMux 0 Mux 1 Mux 21LCD_DOTCLK N1 LCD_DOTCLK SAIF1_MCLK ETM_TCLK2LCD_VSYNC M6 LCD_RESET LCD_VSYNC3LCD_HSYNC M1 LCD_HSYNC SAIF1_SDATA1 EMT_TCTL4LCD_ENABLE N5 LCD_ENABLE5LCD_WR_RWN / ETM_TCLKK1 LCD_WR_RWN LCD_HSYNC ETM_TCLK6LCD_D17 R3 LCD_D17 ETM_DA67LCD_D16 T3 LCD_D16 ETM_DA78LCD_D15 / ETM_DA15 U3 LCD_D15 ETM_DA159LCD_D14 / ETM_DA14 U2 LCD_D14 ETM_DA1410 LCD_D13 / ETM_DA13 T2 LCD_D13 ETM_DA1311 LCD_D12 / ETM_DA12 T1 LCD_D12 ETM_DA1212 LCD_D11 / ETM_DA11 R2 LCD_D11 ETM_DA1113 LCD_D10 / ETM_DA10 R1 LCD_D10 ETM_DA1014 LCD_D09 / ETM_DA9 P3 LCD_D09 ETM_DA4 ETM_DA915 LCD_D08 / ETM_DA8 P2 LCD_D08 ETM_DA3 ETM_DA816 LCD_D07 / ETM_DA7 P1 LCD_D07 ETM_DA717 LCD_D06 / ETM_DA6 N2 LCD_D06 ETM_DA618 LCD_D05 / ETM_DA5 M3 LCD_D05 ETM_DA519 LCD_D04 / ETM_DA4 M2 LCD_D04 ETM_DA9 ETM_DA420 LCD_D03 / ETM_DA3 L3 LCD_D03 ETM_DA8 ETM_DA321 LCD_D02 / ETM_DA2 L2 LCD_D02 ETM_DA222 LCD_D01 / ETM_DA1 K3 LCD_D01 ETM_DA123 LCD_D00 / ETM_DA0 K2 LCD_D00 ETM_DA024 ETM_TCTL P4 LCD_RD_E LCD_VSYNC ETM_TCTLPin Pin Name i.MX28 Mux 0 Mux 1 Mux 2 Mux 3

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 19Module OperationNot all functions are available at the same time or on all module variants. The configuration of the resources will depend on the system requirements, and some planning may be required to set up the available interfaces in a particular application.DC PowerThe ConnectCard for i.MX28 has 5V and Battery inputs:The 5V supply will have a maximum of 5.25V and a minimum operating voltage of 4.75V. This supply is assumed to come from a regulated supply with about 1A of current capability. The development board supply can generate up to 1.5A.The Battery voltage needs to be between 3.4 and 4.242V. If both 5V and Battery supplies are connected the module will automatically use the 5V supply.In addition, there is a +3.3V line coming out of the module which can be used to power external circuitry. This supply can be disabled in low power mode so that it can be used as a low power configuration signal.Thermal ConsiderationsAt high clock rates the i.MX28 will pull more current. The ConnectCard for i.MX28 has been built to function up to 65C at full clock speed with a thermal pad attached (not included in the development kit) between the processor and the development board. There is a large ground area left open under the module on the development board under the module to accommodate the thermal pad. Bergquist makes thermal pad material in various thicknesses. The CCi.MX28 has been characterized using a combination of 2500S20 and 2000S40 pads from Bergquist. Consult the Freescale data sheet for the i.MX28 for thermal requirements.System BootThe ConnectCard for i.MX28 boot process begins at Power On Reset when the hardware reset logic forces the ARM core to begin execution starting from the on-chip boot ROM. Boot ROM 25 LCD_CS / Touch_InterruptP5 LCD_CS LCD_ENABLE26 LCD_D18 U4 LCD_D18 ETM_DA1827 LCD_D19 T4 LCD_D19 ETM_DA1928 LCD_D20 R4 LCD_D20 ENET1_1588_EVENT2_OUT ETM_DA329 LCD_D21 U5 LCD_D21 ENET1_1588_EVENT2_IN ETM_DA230 LCD_D22 T5 LCD_D22 ENET1_1588_EVENT3_OUT ETM_DA131 LCD_D23 R5 LCD_D23 ENET1_1588_EVENT3_IN ETM_DA0Pin Pin Name i.MX28 PinMux 0 Mux 1 Mux 2

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 20code uses the state of the internal register BOOT_MODE[1:0] as well as the state of various eFUSEs and/or GPIO settings to determine the boot flow behavior of the module.The following Boot modes are supported:Boot from FLASHBoot from SD CardBoot from USBBoot from JTAGEach mode is selected by applying the proper bit pattern to LCD_D00, LCD_D01, LCD_D02, LCD_D03, and LCD_D04. The default boot mode is FLASH. No internal eFUSEs have been set. For more information on boot modes, please refer to chapter 12 of the Freescale documentation.Audio SystemThe audio system is using an SAIF interface configured as I2S.LCD SystemThe LCD is available through a 31 pin ZIF connector on the top side of the module (see variants for availability). The development kit uses a cable from NICOMATIC (part number 050P331K0076-406406 ). The default LCD setting is for 18 bit color, and the development board is set up for this setting as well. A special 24 bit color option is available (not supported in current variant list) but will disconnect the JTAG functionality. Touch screen functionality is supported by connecting LRADC2-5. There are multiple SPI ports available to communicate with a SPI touch screen controller (the development board uses SSP1). PWM0,1,3,4,5 and 6 are available to use for backlight control (the development board uses PWM0).GPIOIn general any of the modules digital pins can be set as a GPIO. There are 3 available states for any GPIO-- low, high , and high impedance. Each of the GPIO pins is capable of functioning on either at 1.8 or 3.3V as well as an interrupt/trigger pin. Each individual GPIO can be dynamically programmed at any time to be in either: High-impedance (for input, three-state, or open-drain applications); Low; High; or Controlled by one of the three selectable i.MX28 peripheral module interfaces. The state of any GPIO pin can be read at any time regardless of its configuration. Analog pins may not be set as GPIO. The following functions cannot be used for GPIO functions:EthernetUSBLRADC (although muxed functions can be used)HSADCOne Wire (Technically it could be by controlling the I2C line)JTAG

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 21PSWITCHRESETDC connections (5V, Battery, and GND)Interfaces1-WireThe ConnectCard for i.MX28 provides a 1-wire interface to communicate with 1-wire devices such as EEPROMs, secure memory and sensors. The required protocol for accessing the generic 1-wire device is defined by Maxim. The Maxim DS2482-100 interface is used for 1-Wire communication. The 1-wire interface uses a strong 3.3V pull-up.ADCs and Touch ScreenThe ConnectCard for i.MX28 provides both Low-Resolution ADC's (LRADC) and a High speed ADC (HSADC). In either case, the ADC's have 12 bit resolution and an absolute accuracy of 1.3%. LRADC's can operate with up to 3.3V inputs, with an absolute accuracy of 1.3%. In addition to ADC functions, LRADC 2-6 can also be used for touch screen control (2-5 are used on the development board for touch screen control). There are 16 ADC channels available, the channel assignments are shown in the table below:ADC Channel Number Assignment0-6 LRADC0-6 measure the voltage on the seven application-dependant LRADC pins.LRADC2-6 can be used for 4/5-wire touch screen control.LRADC6 can be used for a wiper of 5-wire touch screen controller and external temperature sensing, but they cannot be enabled at the same time in hardware configuration.7Dedicated to measuring the battery voltage.8, 9 Dedicated to measuring the internal die temperature.10 Dedicated to measuring the internal 3.3V rail, and for calibrating the voltage levels measured on the auxiliary channels.11 Reserved input for analog testing.12 Dedicated to measuring the internal 1.8V rail.13 Dedicated to measuring the internal 1.5V rail.14 Dedicated to measuring the band gap reference voltage and can be used to calibrate out a portion of the LRADC measurement error. In most cases the band gap reference error dominates the total LRADC error, and this calibration is not helpful.15 Dedicated to measuring the 5V supply to detect possible issues with the 5V rail dropping.

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 22The HSADC is capable of measuring up to 2Msps, and can be used in conjunction with the PWM's to generate signals for external devices like a linear image scanner sensor. The HSADC can be triggered to start the conversion of an analog source in three modes: Trigger by SoftwareTrigger signal generated by the PWM blockTrigger by an input pin from an external sourceCANThe ConnectCard for i.MX28 includes two FlexCAN2 controllers which are compatible with the CAN 2.0B protocol specification. The CAN Protocol Interface (CPI) manages the serial communication on the CAN bus, requesting RAM access for receiving and transmitting message frames, validating received messages and performing error handling. The Message Buffer Management (MBM) handles Message Buffer selection for reception and transmission, taking care of arbitration and ID matching algorithms. The CAN bus can operate up to 1MbpsThe FlexCAN2 controllers require additional hardware, an example of this circuitry can be found on the development board.EthernetThe ConnectCard for i.MX28 provides up to two 10/100 Mbps Ethernet connections (see variants table for number of Ethernet connections). The MAC and PHY are on the module, and the Magnetics and Jack need to be provided external to the module. The connections from the module are differential pairs for the TX and RX ports. In variants with 1 Ethernet 2 USB ports are provided.USBThe ConnectCard for i.MX28 includes up to two high-speed Universal Serial Bus (USB) version 2.0 controllers and integrated USB Transceiver Macrocell Interface (UTMI) PHYs. The i.MX28 device interface can be attached to USB 2.0 hosts and hubs running in the USB 2.0 high-speed mode at 480 Mbps. It can be attached to USB 2.0 full-speed interfaces at 12 Mbps. Note that a dual-device configuration is not supported. The USB controllers and integrated PHYs support high-speed Host modes for peer-to-peer file interchange. The USB controller can also be configured as a high-speed host.Each USB is a dynamically configured port that can support up to seven RX and seven TX endpoints besides EP0, each of which may be configured for bulk, interrupt, or isochronous transfers.USB0 is a high speed, OTG-capable universal serial bus. The ConnectCard for i.MX28 can operate as a host controller that can support eight endpoints: one control, one bulk-out, one bulk-in, and five flexible endpoints. Further, it can negotiate with another OTG system to be either the host or the device in a peer connection.Note that USB1 is a host-only USB port.Variants with two USB ports have only one Ethernet port, as noted in the Ethernet section above.

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 23I2CThe ConnectCard for i.MX28 contains 2 two-wire SMB/I2C bus interfaces. Each interface can act as a slave or a master on the SMB. The I2C interfaces are multiplexed with the DUART, and I2C0 is used for the DUART on the development board, and no termination resistors are on the module for this interface. I2C1 is used to run the 1-wire interface, and 2.2K ohm termination resistors are located on the module. The supply voltage of these resistors is 3.3V.The I2C bus is a standard two-wire serial interface for connecting the ConnectCard for i.MX28 to peripheral devices or host controllers. The I2C buss operates at a standard speed of up to 100Kbps and a fast speed of up to 400Kbps. The ConnectCard for i.MX28 can act as either master of slave on the I2C bus. This module is also capable of supporting multi-master configurations. The device address of the 1-wire bridge is 00, and cannot be used by other I2C devices connected to the I2C1 bus.SAIF (Audio)The ConnectCard for i.MX28 includes a Serial Audio Interface (SAIF) configured as an I2S intervace. It is capable of transmitting and receiving in 16 or 24 bit audio, by connecting to an audio codec. A possible example circuit is shown in the development board schematics.AUARTs and DUARTUp to four application UARTs (AUART), and 1 debug (console) DUART are available on the ConnectCard for i.MX28 module. The AUARTs are capable of running up to 3.25 Mbps, while the DUART is capable of speeds up to 115Kbps. Variants using the i.MX287 include flow control on all application UARTs. Through the DUART the CPU reads and writes data and control/status information through the APBX interface. The DUART does the serial to parallel conversions on data received from a peripheral device and the parallel to serial conversion on data transmitted to the peripheral device. The buffer size for the DUART is 32 bytes. Flow control is not included for the debug UART.Pulse Width Modulator (PWM)The ConnectCard for i.MX28 module provides access to PWM0 through PWM6. The PWMs can be used in place of GPIO pins to control such things as LED Brightness, HSADC, and LCD backlight control. Independent output control of each phase allows 0, 1, or high-impedance to be independently selected for the active and inactive phases. Individual outputs can be run in lock step with guaranteed non-overlapping portions for differential drive applications.Synchronous Serial Ports (SPI, and SD)The three available Synchronous Serial Ports on the ConnectCard for i.MX28 module can support SPI master and Slave modes up to 52MHz speeds. In addition SSP0 is capable of SD card functions including booting.Real Time Clock (RTC)The real-time clock (RTC) and alarm share a one-second pulse time domain. The watchdog reset and millisecond counter run on a one-millisecond time domain. The RTC, alarm, and

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 24persistent bits use persistent storage and reside in a special power domain (crystal domain) that remains powered up even when the rest of the chip is in its powered-down state.The ConnectCard for i.MX28 development board does not include a backup battery, so the RTC will not be maintained through power cycles.Liquid Crystal Display (LCD)Some versions of the ConnectCard for i.MX28 includes an LCD connector that is separate from the edge connector. Smart LCDs are available in a range of sizes and capabilities, from simple text-only displays to WVGA, 16/18/24 bpp color TFT panels. This device supports displays that support moving pictures and require the RGB interface mode (called DOTCLK interface in this document). Wi-Fi and BluetoothThe ConnectCard for i.MX28 is available with an Qualcom-Atheros 802.11 a b g n and BT4.0 interfaces. Wi-Fi data rates up to 150 Mbps (5GHz n-mode) are possible. For variants without BT a diversity antenna (using the 2 u.FL ports) is utilized for the 2.4GHz band. For variants with BT a single u.FL antenna connection for both bands is used.The module is built with coexistence in mind and handles the BT coexistence internally. Cellular coexistence filtering is onboard to aid in designing systems susceptible to cellular interference.A mini access point mode is available in the Wi-Fi with up to 5 clients. This mode is limited to non DFS channels. The channels available are shown below:US and Canada - 2.4 GHz band, 5.8, 5.15-5.25 GHz onlyEU - 2.4 GHz band onlyJapan - 2.4 GHz band onlyEmbedded Trace MacrocellThe ConnectCard for i.MX28 includes a stand-alone ARM CoreSight Embedded Trace Macrocell, ETM9CSSingle, which provides a instruction trace and a data trace for the ARM9 microprocessor. This function is available on the same connector as the LCD, and many of the pins are shared with the LCD controller. This feature is disabled by default. To enable Embedded Trace Macrocell, external hardware is needed to set LCD_D05 to high during reset (rever to the i.MX28 boot mode configuration).ResetThe reset pin on the module is low asserted. A low pulse will reset the module. There is an internal pull up resistor to 3.3V, so no external pull up resistor is needed. Recovery and PowerThe power pin is used to turn the ConnectCard for i.MX28 module on when only the battery supply is connected. This is done by connecting about 1V to the pin for 100ms. The power pin is also used to place the module in recovery mode. This is done by placing 3.3V on the pin for more than 5 seconds. The sb_loader can then be used to boot the part through the USB OTG (USB0) interface.

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 25NAND FLASHThe ConnectCard for i.MX28 module includes either 128MB or 256MB of NAND FLASH from the Micron Technologies MT29F series. These chips operate from 1.8V.DDR2 RAMThe DDR2 RAM on the ConnectCard for i.MX28 module is either 128MB or 256MB from the Micron Technologies MT47 series.

© 2013 Digi International, Inc. 26About the Development BoardCHAPTER 2The Development Board for the ConnectCardTfor i.MX28 is set up to allow testing of the interfaces on the module. These various interfaces are selected by switches, and not all interfaces are available at the same time. In addition to the switches there are jumpers, pushbutton switches, potentiometers, various header connectors, and various connectors to handle the interfaces. All the required circuitry for the interfaces is included on the development board.What’s on the Development Board?Locking barrel power supply port for 12V wall adapterPower switchConnectors for Digi 802.3af Power Over Ethernet module (sold separately)5V regulated power supply4.2V regulated power supply (battery simulator)3.3V Regulated power supply to run the dev board and XBee modulesScrew Terminal blocks for 5V, 4.2V external supplies2 X Ethernet connections2 X UART 232 SUB-D 9-pin connectors1 X DUART 232 SUB-D 9-pin Connector2 X UART with TTL levels2 X CAN bus with termination resistors selection and SUB-D 9-pin connections1 X USB OTG connector 1 X USB Host connector1 X micro SD card holderHSADC headerLRADC header and potentiometersSPI and I2C headersOne Wire header and EEPROM

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 27Audio Interface18 Bit Color LCD interfaceBoot mode selection jumpersETM headerJTAG headerXBee Through-Hole and SMT socketsUser Buttons and LEDsPower and Reset buttonsGPIO header3 X u.FL to RPSMA connectors (2 for the CCi.MX28 module and 1 for XBee antennas)

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 28The Development Board Since some interfaces share a common pin on the ConnectCard for i.MX28 module, and may be used for multiple interfaces on the development board, conflicts between interfaces are possible. Tables are included to show which interfaces share resources. Tables in this section show the position of switches and jumpers. For switches ON/CLOSE indicates the switch is set to the on position connecting the two sides of the switch, conversely OFF/OPEN indicates the switch is in the off position disconnecting the two sides of the switch. For Jumpers SHORT indicates the jumper is installed across the two posts, and OPEN indicates the jumper is not installed. The functions are shown in rows. To set up a function follow the

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 29instructions on the row for that function. If the table has nothing in the box, there is no conflict with that switch or jumper.Header Pin OutsThe pin out for the interface headers are shown below.SSP1 (P85) & SSP3 (P87)PIN FUNCTION1 VCC_3V32MOSI3MISO4SCK5SSN6GNDLRADC (0-6) (P8) AUART2 (P2) AUART3 (P3)PIN FUNCTION PIN FUNCTION PIN FUNCTION1 LRADC0 1 NC 1 NC2 LRADC1 2 NC 2 NC3 LRADC2 3 RX 3 RX4 LRADC3 4 NC 4 NC5 LRADC4 5 TX 5 TX6 LRADC5 6 NC 6 NC7 LRADC6 7 NC 7 NC8NC 8 NC 8 NC9GND 9GND 9GND10 3.3VDC 10 3.3VDC 10 3.3VDCJTAG (P34) ETM (J4)PIN FUNCTION PIN FUNCTION PIN FUNCTION1 3.3VDC 1 NC 2 NC2 3.3VDC 3 NC 4 NC3 TRST 5 GND 6 TCLK

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 304 GND 7 DBGRQ 8 DBGACK5 TDI 9 NC 10 EXTTRIG6 GND 11 NC 12 VTREF7 TMS 13 NC 14 VSUPPLY8 GND 15 NC 16 DA79 TCK 17 NC 18 DA610 GND 19 NC 20 DA511 RTCK 21 NC 22 DA412 GND 23 DA15 24 DA313TD0 25DA1426 DA214 GND 27 DA13 28 DA115 RESET 29 DA12 30 GND16 GND 31 DA11 32 GND17 NC 33 DA10 34 VTREF18 GND 35 DA9 36 TCTL19 Pull Down 37 DA8 38 DA020 GND 39 GND 40 GND41 GND 42 GND43 GNDLCD (P4)PIN FUNCTION PIN FUNCTION1D162D173D124D135D146D157D168D179NC10NC11 NC 12 NC13 GND 14 GND15 D10 16 D1117 D06 18 D0719 D08 20 D09JTAG (P34) ETM (J4)

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 3121 D10 22 D1123 NC 24 NC25 NC 26 NC27 GND 28 GND29 D04 30 D0531 D00 32 D0133 D02 34 D0335 D04 36 D0537 NC 38 NC39 NC 40 NC41 GND 42 GND43 ENABLE 44 DOTCLK45 PWM0 46 GND47 VSYNC 48 HSYNC49 NC 50 NC51 NC 52 NC53 NC 54 NC55 GND 56 GND57 SSP1_MOSI 58 SSP1_SCK59 AUART1_CTS 60 AUART1_RTS61 I2C1_SDA 62 I2C1_SCL63 SSP1_SSN 64 SSP1_SCK65 SSP1_MOSI 66 SSP1_MISO67 NC 68 Touch Jumper69 NC 70 NC71 TOUCH_INTERRUPT 72 GND73 3.3VDC 74 3.3VDC75 WALL_12V 76 WALL_12V77 WALL_12V 78 WALL_12V79 NC 80 NCLCD (P4)

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 32Development Board Set UpPower SuppliesThe development board includes two 5V, one 4.2V, and one 3.3V regulators. One 5V regulator is set up to power the module from the 9VDC to 30VDC wall adaptor, the other 5V regulator is a buck boost regulator to power the USBs. The 4.2V regulator is set up to power the module through the BATT port. The 3.3V regulator powers both the development board and the XBee if so equipped. The development board has an ON/OFF switch, SW1. The power switch SW1 can switch both 9V-30VDC input power supply and 12VDC coming out of the optional PoE module (Digi P/N DG-ACC-POE). However, if a power plug is present on the DC power jack, PoE is disabled.The 5V and BATT module supplies can also come from an external jack. For the 5V external jack the voltage range is 4.75DC to 5.25VCD. For the external BATT supply the allowable range is 3.4VDC to 4.2VDC. The module will not auto boot from the BATT supply, but will from the 5V supply. If operating form only the BATT supply the POWER BUTTON will need to be pressed to turn the module on.The 3.3V board supply and XBee supply along with the 5V USB supply are powered from either the 5V or BATT module supplies, with the 5V supply being the primary and the BATT supply being the secondary supply.The module can be connected to both the 5V and BATT supply at the same time. When connected to both supplies the module will draw its power form the 5V supply, as will the board, USB, and XBee.

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 33Power over Ethernet (PoE) - IEEE802.3afPoE is only available through ENET0 on the development board. If the wall plug is connected Poe is disabled.The development board provides two PoE module connectors, P28 and P33, to plug a Digi PoE module (DG-ACC-POE). The PoE module is an optional accessory item that can be plugged on the development board through the two connectors.• P28, input connector: provides access to the PoE signals from the Ethernet connector• P33, output connector: provides the output power supply from the PoE module

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 34The PoE ModulePlug in the PoE module at a right angle to the development board, as shown in the picture below. Note: the PoE module is part of the optional Digi 802.3af application kit (sold separately, Digi P/N DG-ACC-POE).

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 35PoE Connector (power in), P28The table below provides the pinout of the PoE input connector:PoE Connector (power out), P33The table below provides the pinout of the PoE output connector:Pin Signal1Poe_TX_CT2 Poe_RX_CT3 Poe_RJ45_4/54 Poe_RJ45_7/8Pin Signal1 +12V_PoE2 +12V_PoE3GND4GND5 Poe_GND6 Poe_GND

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 36Connector, Switch, and Jumper Locations

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 37Power Functions and Settings9-30VDC, P13 set4.2V and 5V External Terminal Blocks, P13 Open5V and BATT supplies can be connected at the same time, however 5V will be selected by the CCi.MX28 in this case. The term REG refers to connection to the onboard regulator, and the term EXT refers to connection to an external supply using the screw terminals. To use the internal regulator function move the switch (SW21 or SW22) to the REG setting, and the opposite setting (EXT) to connect the module to an external supply.Boot ModeThe Boot Mode of the ConnectCard for i.MX28 is set using SW25. Setting the boot mode requires the 31 connector FFC cable, as five of the LCD lines are used to set the boot mode. On board logic sets up the boot mode in accordance with the Freescale requirements.Some LCDs can drive these lines to undesired states. The development board includes circuitry to prevent the LCD from corrupting the boot mode.If your final design does not include the video cable, you may still boot from USB using the recovery button. This is explained in Chapter 3.Function J31 J33 SW1 SW21 SW22 P65 P16 P26 P215V Regulator, no XBeeNC NC ON REG EXT SHORT OPEN OPEN SHORT5VRegulator, with XBeeNC NC ON REG EXT SHORT SHORT OPEN SHORTBattery Regulator, no XBeeNC NC ON EXT REG SHORT OPEN SHORT OPENBattery Regulator, with XBeeNC NC ON EXT REG SHORT SHORT SHORT OPENFunction J31 J33 SW1 SW21 SW22 P65 P16 P26 P21External 5V, no XBee4.75-5.25VDCNC OFF EXT EXT SHORT OPEN OPEN SHORTExternal 5V, with XBee4.75-5.25VDCNC OFF EXT EXT SHORT SHORT OPEN SHORTExternal Battery no XBeeNC 3.4-4.2VDC ON EXT EXT SHORT OPEN SHORT OPENExternal Battery with XBeeNC 3.4-4.2VDC ON EXT EXT SHORT SHORT SHORT OPEN

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 38Switch Location

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 39Function and SettingsDevelopment Board Button FunctionsThe development board has seven buttons with different functions.XBEE RESET BUTTON and XBEE COMM BUTTONThese two buttons are for an XBee module. For the XBee button function, consult the XBee manual.USER BUTTON1 and USER BUTTON2The two user buttons are connected to the ConnectCard for i.MX28 modules as GPIOs to UART2_RTS (module pin 38) and SD_CARDDETECT (module pin 30). User Buttons provide a high (3.3V) level until pressed, then a low (GND) level is sent.CCi.MX28 RESET BUTTONThis button resets the module and is red in color. Pressing this button will cause the module to reboot.CCi.MX28 POWER BUTTONThis button is used to turn the module on when it is operating from the BATT power supply. The module will not auto-boot from the battery supply, but will from the 5V supply.CCi.MX28 RECOVERY BUTTONThis button is used to put the module in recovery mode. In this mode, the SB_LOADER program can be used to boot the module through the USB OTG (USB0) port.Boot Mode SW25 P1 SW25 P2NAND FLASH OFF/OPEN OFF/OPENUSB OFF/OPEN ON/CLOSESD ON/CLOSE OFF/OPENJTAG ON/CLOSE ON/CLOSE

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 40Button LocationsUSER BUTTON1 (SW4)CCIMX28 RESET BUTTON (SW6)CCIMX28 POWER BUTTON (SW7)XBEE RESET BUTTON (SW3)CCIMX28 RECOVERYBUTTON (SW23)USER BUTTON2 (SW5) XBEE COMM BUTTON (SW3)

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 41DUART (Console) and I2C0The normal mode of sending commands and receiving information from the module about those commands is through the DUART. The DUART is multiplexed with I2C0, and switches are provided to select the function desired.The DUART status can be seen in the DUART LEDs located close to SW11.Connector and Switch Locations

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 42Functions and SettingsAUART1, ENET0, LRADC4, LRADC5, and User LEDsAUART1AUART1 can be operated with or without flow control, and each of the functions are connected separately to the D9 connector through switch SW8. The status of AUART 1 can be seen in the AUART1 LEDs located next to SW8.ENET0ETHERNET (ENET0) is wired directly to the module and no switching is required. The LEDs for ENET0 are operated by GPIOs and are available through switch SW12.LRADC4 & LRADC5LRADC4 and LRADC5 are connected to separate potentiometers through switch SW28 and SW20. When not using the potentiometer, it is best to leave the switch in the OFF/OPEN condition to avoid having the potentiometer voltage affecting the other signals on the line. All the LRADCs (0-6) are also available through the LRADC header.User LEDsUSER_LED1 and USER_LED2 are connected to PWM1, and PWM0 respectively. The LEDs will turn on with a low and off with a high.Function SW11 P1 SW11 P2 SW29 P1 SW29 P2DUART_TX ON/CLOSE ON/CLOSE OFF/OPEN OFF/OPENDUART_RX ON/CLOSE ON/CLOSE OFF/OPEN OFF/OPENI2C0_SDA OFF/OPEN OFF/OPEN ON/CLOSE ON/CLOSEI1C0_SCL OFF/OPEN OFF/OPEN ON/CLOSE ON/CLOSE

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 43Connector and Switch LocationsFunction and SettingsFunction SW8 P1SW8 P2SW8 P3SW8 P4SW12 P1SW12 P2SW20 P1SW20 P2SW28 P1SW28 P2AUART1_TX ON/CLOSEOFF/OPENAUART1_RTS ON/CLOSEOFF/OPENOFF/OPENAUART1_RX ON/CLOSEOFF/OPENAUART1_CTS ON/CLOSEOFF/OPENOFF/OPEN

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 44ENET0_SPEED_LED OFF/OPENON/CLOSEOFF/OPENENET0_ACTIVE_LED OFF/OPENON/CLOSEOFF/OPENLRADC4 POT OFF/OPENOFF/OPENON/CLOSELRADC5 POT OFF/OPENOFF/OPENON/CLOSEUSER_LED1 OFF/OPENON/CLOSEUSER_LED2 OFF/OPENON/CLOSEFunction SW8 P1SW8 P2SW8 P3SW8 P4SW12 P1SW12 P2SW20 P1SW20 P2SW28 P1SW28 P2

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 45AUART4, SSP3, I2S (Audio), LRADC6, and XBeeAUART4AUART4 can be operated with or without the flow control, and each of the functions are connected separately to the D9 connector through switch SW9. The status of AUART4 can be seen in the AUART4 LEDs located next to SW9.SSP3SSP3 is connected to its header (P87) through switch SW17.I2S (Audio)I2S (AUDIO) connections are made through switch SW14. The CODEC also uses I2C1. The LRCLK is multiplexed with AUART4_CTS. LRADC6LRADC6 is connected to its potentiometer through switch SW28 POS3. When not using the potentiometer, it is best to leave the switch in the OFF/OPEN condition to avoid having the potentiometer voltage affecting the other signals on the line. All the LRADCs (0-6) are also available through the LRADC header.XBeeXBee connections are made through switch SW19. AUART4 is used to communicate with the XBee module.

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 46Connector and Switch Locations

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 47Function and Settings Table - AUART4Function and Settings Table - SSP3Function AUART4_TX AUART4_RTS AUART4_RX AUART4_CTSSW9 / P1 ON/CLOSESW9 / P2 ON/CLOSESW9 / P3 ON/CLOSESW9 / P4SW14 / P1SW14 / P2 OFF/OPENSW17 / P1 OFF/OPENSW17 / P2 OFF/OPENSW17 / P3 OFF/OPENSW17 / P4 OFF/OPENSW19 / P1 OFF/OPENSW19 / P2 OFF/OPENSW19 / P3 OFF/OPENSW19 / P4 OFF/OPENSW28 / P3Function SSP3_MOSI SSP3_MISO SSP3_SCK SSP3_SS0SW9 / P1 OFF/OPENSW9 / P2 OFF/OPENSW9 / P3 OFF/OPENSW9 / P4 OFF/OPENSW14 / P1SW14 / P2 OFF/OPENSW17 / P1 ON/CLOSESW17 / P2 ON/CLOSESW17 / P3 ON/CLOSESW17 / P4 ON/CLOSESW19 / P1 OFF/OPENSW19 / P2 OFF/OPENSW19 / P3 OFF/OPEN

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 48Function and Settings Table - I2SNote: I2S (Audio) also uses I2C1SW19 / P4 OFF/OPENSW28 / P3Function I2S_SAIF1_DATA0 I2S_SAIF0_MCLK I2S_SAIF0_DATA0 I2S_SAIF0_BITCLKSW9 / P1 OFF/OPENSW9 / P2SW9 / P3 OFF/OPENSW9 / P4 OFF/OPENSW14 / P1 ON/CLOSESW14 / P2 ON/CLOSESW17 / P1SW17 / P2 OFF/OPENSW17 / P3 OFF/OPENSW17 / P4 OFF/OPENSW19 / P1 OFF/OPENSW19 / P2SW19 / P3 OFF/OPENSW19 / P4 OFF/OPENSW28 / P3 OFF/OPENFunction SSP3_MOSI SSP3_MISO SSP3_SCK SSP3_SS0

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 49Function and Settings Table - XBeeFunction and Settings Table - LRADC6Function XBEE_RTS XBEE_DTR XBEE DIN XBEE DOUTSW9 / P1 OFF/OPENSW9 / P2 OFF/OPENSW9 / P3 OFF/OPENSW9 / P4 OFF/OPENSW14 / P1SW14 / P2 OFF/OPENSW17 / P1 OFF/OPENSW17 / P2 OFF/OPENSW17 / P3 OFF/OPENSW17 / P4 OFF/OPENSW19 / P1 ON/CLOSESW19 / P2 ON/CLOSESW19 / P3 ON/CLOSESW19 / P4 ON/CLOSESW28 / P3Function LRADC6SW9 / P1SW9 / P2SW9 / P3SW9 / P4SW14 / P1 OFF/OPENSW14 / P2SW17 / P1SW17 / P2SW17 / P3SW17 / P4SW19 / P1SW19 / P2SW19 / P3

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 50SW19 / P4SW28 / P3 ON/CLOSEFunction LRADC6

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 51AUART2 (TTL), AUART3 (TTL), CAN1, ETHERNET (ENET1), and USB Host (USB1)AUART2 (TTL)This header needs no switches to operate. The flow control for AUART2 is not connected to the header (P2).AUART3This header is connected to header P3 through switch SW10.CAN1 The CAN1 header is connected to D9 Header J20 through Switch SW15. A termination resistor is also available on the development board and is connected through jumper P68.ETHERNETThe ETHERNET (ENET1) header is connected to the ENET socket J51, using jumpers J5 and J6. The LEDs for ENET1 are available through GPIOs using SW13.USB HOST (USB1)For modules without ENET1, USB1 is available and is connected to the USB socket J2 using jumpers J5 and J6.

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 52Connector, Switch, and Jumper LocationsVariants with ENET1 do not have USB1 and variants with USB1 do not have ENET1.

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 53Function and Settings Table - AUART3Function and Settings Table - CAN1Function and Settings Table - ENET1Function AUART3_RX AUART3_TXSW10 / P1 ON/CLOSESW10 / P2 ON/CLOSESW13 / P1 OFF/OPENSW13 / P2 OFF/OPENSW15 / P1 OFF/OPENSW15 / P2 OFF/OPENP68J5 / ETH1J5 / USB1J6 / ETH1J6 / USB1Function CAN1_RX CAN1_TX CAN1_TERMINATIONSW10 / P1 OFF/OPENSW10 / P2 OFF/OPENSW13 / P1 OFF/OPENSW13 / P2 OFF/OPENSW15 / P1 ON/CLOSESW15 / P2 ON/CLOSEP68 SHORTJ5 / ETH1J5 / USB1J6 / ETH1J6 / USB1Function ENET1_SPEED_LED ENET1_ACTIVE_LED ENET1_RX+ ENET1_RX-SW10 / P1 OFF/OPENSW10 / P2 OFF/OPENSW13 / P1 ON/CLOSE

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 54Function and Settings Table - USB1AUART2 has no switches to set. If the CAN1 Termination is not needed, P68 can be left OPEN.SW13 / P2 ON/CLOSESW15 / P1 OFF/OPENSW15 / P2 OFF/OPENP68J5 / ETH1 SHORTJ5 / USB1 OPENJ6 / ETH1 SHORTJ6 / USB1 OPENFunction USB1_DM USB1_DPSW10 / P1SW10 / P2SW13 / P1SW13 / P2SW15 / P1SW15 / P2P68J5 / ETH1 OPENJ5 / USB1 SHORTJ6 / ETH1 OPENJ6 / USB1 SHORTFunction ENET1_SPEED_LED ENET1_ACTIVE_LED ENET1_RX+ ENET1_RX-

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 55SD CARD, SSP1, LRADC0, LRADC1, LRADC2, and LRADC3SD CARDThe SD CARD socket P1 requires not switches to operate.SSP1SSP1 or SPI1 is connected to header P85 through switch SW16.LRADC0, LRADC1, LRADC2 and LRADC3LRADC0, LRADC1, LRADC2 and LRADC3 are connected to their associated potentiometers through switch SW27. These functions are also available on Header P8.Connector, Switch, and Jumper Locations

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 56Function and Settings Table - SSP1Function and Settings Table - LRADC0-3Function SSP1_MOSI SSP1_MISO SSP1_SCK SSP1_SSNSW16 / P1 ON/CLOSESW16 / P2 ON/CLOSESW16 / P3 ON/CLOSESW16 / P4 ON/CLOSESW27 / P1 OFF/OPENSW27 / P2 OFF/OPENSW27 / P3 OFF/OPENSW27 / P4 OFF/OPENFunction LRADC0 POT LRADC1 POT LRADC2 POT LRADC3 POTSW16 / P1SW16 / P2 OFF/OPENSW16 / P3 OFF/OPENSW16 / P4 OFF/OPEN OFF/OPENSW27 / P1 ON/CLOSESW27 / P2 ON/CLOSESW27 / P3 ON/CLOSESW27 / P4 ON/CLOSE

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 57CAN0, HSADC, AND1-WireCAN0CAN0_RX is connected to D9 header J19 through jumper P38. No switch is needed for CAN0_TX. The termination resistor is available on jumper P67HSADCThe HSADC header (J21) is not populated on the development board.1-Wire 1-Wire requires no switch to operate. An onboard 1-Wire EEPROM is provided for testing. The EEPROM is connected to the 1-Wire interface using SW24 pos 1.

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 58Connector, Switch, and Jumper LocationsFunction and Settings Table 1-Wire Header has no switchesCAN0_TX has no switchesHSADC0 Header is not populatedSW24 P2 is not connectedFunction 1-WIRE EEPROMCAN0_RX CAN0_TERMINATION HS ADC_TRIGGERSW24 / P1 ON/CLOSEP38 ON/CLOSE OFF/OPENP67 ON/CLOSE

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 59LCD, ETM, JTAG, USB OTG (USB0)The locations of the LCD, ETM, JTAG and USB OTG (USB0) are shown below. The USB OTG (USB0) can be operated with or without the OTG functionality. The USB0_ID line is connected to the socket (J7) through jumper P39. A short to GND of the USB0_ID line is available on jumper P37. To operate the LCD, ETM and JTAG the 31 pin LCD cable must be connected from the development board to the module.Connector and Jumper LocationsFunctions and SettingsLCD has no switches. To operate the touch screen OPEN P66.JTAG has no switchesETM has no switches

ConnectCore for i.MX53 © 2013 Digi International, Inc.. 60LCD JTAG ETM ZIF connector is for the FFC 31 pin cable connecting these interfaces to the CCi.MX28

© 2013 Digi International, Inc. 61CertificationsCHAPTER 3Agency CertificationsUnited States FCCThe ConnectCard™ for i.MX28 Module complies with Part 15 of the FCC rules and regulations. Compliance with the labeling requirements, FCC notices and antenna usage guidelines is required.To fulfill FCC Certification, the OEM must comply with the following regulations: The system integrator must ensure that the text on back side of the module is placed on the outside of the final product. ConnectCard™ for i.MX28 RF Module may only be used with antennas that have been tested and approved for use with this module [refer to the antenna tables in this section].OEM Labeling RequirementsWARNING: The Original Equipment Manufacturer (OEM) must ensure that FCC labeling requirements are met. This includes a clearly visible label on the outside of the final product enclosure that displays the contents shown in the figure below. Required FCC Label for OEM products containing the ConnectCard™ for i.MX28 RF Module:FCC NoticesIMPORTANT: The ConnectCard™ for i.MX28 RF Module has been certified by the FCC for use with other products without any further certification (as per FCC section 2.1091). Modifications not expressly approved by Digi could void the user's authority to operate the equipment.IMPORTANT: OEMs must test final product to comply with unintentional radiators (FCC section 15.107 & 15.109) before declaring compliance of their final product to Part 15 of the FCC Rules.

ConnectCore™ for i.MX28™ Hardware Reference © 2013 Digi International, Inc. 62IMPORTANT: The ConnectCard™ for i.MX28 RF module has been certified for remote and base radio applications. If the module will be used for portable applications, the device must undergo SAR testing.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 radio frequency energy, and if not installed and used in accordance with the instructions, 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 to correct the interference by one or more of the following measures: Re-orient or relocate the receiving antenna, Increase the separation between the equipment and receiver, Connect equipment and receiver to outlets on different circuits, or Consult the dealer or an experienced radio/TV technician for help.FCC-Approved AntennasThe ConnectCard™ for i.MX28 can be installed utilizing antennas and cables constructed with non-standard connectors (RPSMA, RPTNC, etc.).The modules are FCC approved for fixed base station and mobile applications for the channels indicated in the tables below. If the antenna is mounted at least 20cm (8 in.) from nearby persons, the application is considered a mobile application. Antennas not listed in the table must be tested to comply with FCC Section 15.203 (Unique Antenna Connectors) and Section 15.247 (Emissions).ConnectCard™ for i.MX28: ConnectCard™ for i.MX28 RF Modules have been tested and approved for use with all the antennas listed in the tables below. (Cable-loss is required when using gain antennas as shown below.)The antennas in the tables below have been approved for use with this module. Digi does not carry all of these antenna variants. Contact Digi Sales for available antennas.

ConnectCore for i.MX28 Hardware Reference © 2013 Digi International, Inc.. 63Antennas Approved for Use with the ConnectCard™ for i.MX28 Wi-Fi ModulesNote: * If using the RF module in a portable application (for example - if the module is used in a handheld device and the antenna is less than 20cm from the human body when the device is in operation): The integrator is responsible for passing additional SAR (Specific Absorption Rate) testing based on FCC rules 2.1091 and FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields, OET Bulletin and Supplement C. The testing results will be submitted to the FCC for approval prior to selling the integrated unit. The required SAR testing measures emissions from the module and how they affect the person.RF ExposureThe preceding statement must be included as a CAUTION statement in OEM product manuals in order to alert users of FCC RF Exposure compliance.Europe (ETSI)The ConnectCard™ for i.MX28 Module has been certified for use in several European countries. For a complete list, refer to www.digi.comIf the ConnectCard™ for i.MX28 RF Modules are incorporated into a product, the manufacturer must ensure compliance of the final product to the European harmonized EMC OMNI-DIRECTIONAL ANTENNASPart Number Type (Description)Peak Gain Application Cable loss/Attenuation requiredA24-HASM-450 Dipole (articulated RPSMA, 2.4GHz antenna)1.8dBi Fixed/Mobile29000146 Dipole(articulated RPSMA, 2.4GHz and 5GHz antenna)5dBi Fixed/MobileTaoglas PC.11.07.0100A The Stripe Omni-directional antenna 3dBi 2 2.4GHz4.5dBi @ 5GHzFixed/MobileTaoglas FXP.830.07.0100CDipole 2.6dBi @ 2.4GHz5dBi @ 5GHzFixed/Mobile

ConnectCore for i.MX28 Hardware Reference © 2013 Digi International, Inc.. 64and low-voltage/safety standards. A Declaration of Conformity must be issued for each of these standards and kept on file as described in Annex II of the R&TTE Directive.Furthermore, the manufacturer must maintain a copy of the ConnectCard™ for i.MX28 Hardware Reference manual documentation and ensure the final product does not exceed the specified power ratings, antenna specifications, and/or installation requirements as specified in the user manual. If any of these specifications are exceeded in the final product, a submission must be made to a notified body for compliance testing to all required standards.OEM Lebeling RequirementsThe ‘CE’ marking must be affixed to a visible location on the OEM product.CE Labeling RequirementsThe CE mark shall consist of the initials "CE" taking the following form:• If the CE marking is reduced or enlarged, the proportions given in the above graduated drawing must be respected. • The CE marking must have a height of at least 5mm except where this is not possible on account of the nature of the apparatus. • The CE marking must be affixed visibly, legibly, and indelibly.RestrictionsDeclarations of ConformityDigi has issued Declarations of Conformity for the ConnectCard™ for i.MX28 RF Modules concerning emissions, EMC and safety. Files can be obtained by contacting Digi Support.Important Note:Digi does not list the entire set of standards that must be met for each country. Digi customers assume full responsibility for learning and meeting the required guidelines for each country in their distribution market. For more information relating to European compliance of an OEM product incorporating the ConnectCard™ for i.MX28 RF Module, contact Digi, or refer to the following web sites:

ConnectCore for i.MX28 Hardware Reference © 2013 Digi International, Inc.. 65• CEPT ERC 70-03E - Technical Requirements, European restrictions and general requirements: Available at www.ero.dk/.• R&TTE Directive - Equipment requirements, placement on market: Available at www.ero.dk/.Approved AntennasThe same antennas have been approved for Europe as stated in the FCC table for use with the ConnectCard™ for i.MX28 Module. Canada (IC)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 interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.Labeling Requirements Labeling requirements for Industry Canada are similar to those of the FCC. A clearly visible label on the outside of the final product enclosure must display the following text: Contains Model ConnectCard™ for i.MX28 Radio, IC: 1846A-CCi.MX28The integrator is responsible for its product to comply with IC ICES-003 & FCC Part 15, Sub. B - Unintentional Radiators. ICES-003 is the same as FCC Part 15 Sub. B and Industry Canada accepts FCC test report or CISPR 22 test report for compliance with ICES-003.Transmitters with Detachable AntennasThis radio transmitter (IC: 1846A-CCi.MX28) has been approved by Industry Canada to operate with the antenna types listed in the table above with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.Le présent émetteur radio (IC: 1846A-CCi.MX28) a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés ci-dessous et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.

ConnectCore for i.MX28 Hardware Reference © 2013 Digi International, Inc.. 66Detachable AntennaUnder Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.Australia (C-Tick)These modules comply with requirements to be used in end products in Australia. All products with EMC and radio communications must have a registered C-Tick mark. Registration to use the compliance mark will only be accepted from Australian manufacturers or importers, or their agent, in Australia.In order to have a C-Tick mark on an end product, a company must comply with a or b below.ahave a company presence in Australia.bhave a company/distributor/agent in Australia that will sponsor the importing of the end product.Contact Digi for questions related to locating a contact in Australia.

© 2013 Digi International, Inc. 67Module SpecificationsAPPENDIX AMechanical SpecificationsDimensional DrawingEnvironmental Specifications *Operating temperatures above 65ºC may require additional thermal management considerations as part of the module integration. See the Thermal Considerations section in this document for details.Operating temperature: -40ºC to +85ºC*Storage temperature: -40ºC to +125ºC

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 68Network Interface Digi part number A24-HASM-450Antenna AttributesDimensions Note: Dimensions are provided for reference purposes only. The actual antenna may vary.Specification AttributeFrequency Range 2.4 - 2.5 GHzGain 1.8dBiVSWR 2.0 MaxConnector Reverse Male SMA (RPSMA)Impedance 50 ΩTemperature RP-SMAGain -20ºC to +80ºCReturn Loss -9.5dBWeight 27gDimensions 10.6 x 87.4 mm

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 69Digi part number 29000146Antenna AttributesDimensionsNote: Dimensions are provided for reference purposes only. The actual antenna may vary.Specification AttributeFrequency Range 2.4 - 2.5 GHz, 5.15 - 5.825 GHzGain 5 dBi MaxVSWR 1.9 TypicalConnector Reverse Male SMA (RPSMA)Impedance 50 ΩTemperature Rating -20°C to +80° CDimensions 104.9 x 11 mm

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 70VSWR ChartTaoglas PC.11.07.0100AAntenna AttributesSpecification 2.4 GHzAttribute 5GHz AttributeFrequency Range 2.4 - 2.5 GHz 4.9 - 5.9 GHzPeak Gain 3 dBi 4.5 dBiAverage Gain (on plastic) -0.6 dBi -0.5 dBiVSWR 1.5Connector u.FLImpedance 50 ΩTemperature -40°C to +85° CDimensions 66 x 15 mm (excluding cable)

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 71DimensionsNote: Dimensions are provided for reference purposes only. The actual antenna may vary.

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 72Taoglas FXP.830.07.0100CAntenna AttributesVSWR ChartSpecification 2.4 GHzAttribute 5GHz AttributeFrequency Range 2.4 - 2.5 GHz 4.9 - 5.9 GHzPeak Gain (free space) 1.8 dBi 3.6 dBiPeak Gain (on plastic) 2.6 dBi 5.0 dBiAverage Gain (free space) -3.0 dBi -0.6 dBiAverage Gain (on plastic) -3.0 dBi -0.7 dBiVSWR (free space, on plastic See chart belowConnector u.FLImpedance 50 ΩTemperature -40°C to +85° CDimensions 42 x 7 mm (excluding cable)

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 73DimensionsNote: Dimensions are provided for reference purposes only. The actual antenna may vary.

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 74Ethernet 1Ethernet 2WLANStandardIEEE 802.11a/b/g/n standardsHT20, and HT40 IEEE 802.11nFrequency Band2.40 - 2.50 GHz ( Low Band )5.18 - 5.825 GHz ( High Band )Data Rates802.11b: 1, 2, 5.5, 11 Mbps802.11a/g: 6, 9, 12, 18, 24, 35, 48, 54 Mbps802.11n HT20 FGI: 6.5, 13, 19.5, 26, 39, 52, 58.5, 65 Mbps802.11n HT20 HGI: 7.2, 14.4, 21.7, 29.9, 43.3, 57.8, 65, 72.2 Mbps802.11n HT40 FGI (5GHz only): 13.5, 27, 40.5, 54, 81, 108, 121.5, 135 Mbps802.11n HT40 HGI (5GHz only): 15, 30, 45, 60, 90, 120, 135, 150 MbpsStandard: IEEE802.3Physical layer: 10/100BaseData rate: 10/100 MbpsStandard: IEEE802.3Physical layer: 10/100BaseData rate: 10/100 Mbps

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 75ModulationSecurityCisco CCXv4 ASDWAPI (for China)WPSWEPWPAWPA2Mode Data RateModulation Mode Data RateModulation Mode Data Rate Modulation802.11b 1 DBPSK 802.11g 6 BPSK 802.11a 6 BPSK2 DQPSK 9 BPSK 9 BPSK5.5 CCK 12 QPSK 12 QPSK11 CCK 18 QPSK 18 QPSK24 16-QAM 24 16-QAM35 16-QAM 35 16-QAM48 64-QAM 48 64-QAM54 64-QAM 54 64-QAMMode MCS Modulation Data Rate802.11n HT20 (2.4GHz and 5GHz) HT40 (5GHz only)FGI HGI FGI HGIMCS0 BPSK 6.5 7.2 13.5 15MCS1 QPSK 13 14.4 27 30MCS2 QPSK 19.5 21.7 40.5 45MCS3 16-QAM 26 29.9 54 60MCS4 16-QAM 39 43.3 81 90MCS5 64-QAM 52 57.8 108 120MCS6 64-QAM 58.5 65 121.5 135MCS7 64-QAM 65 72.2 135 150

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 76Frequency BandsUS, Canda2.412 to 2.462 GHz; 11 channels5.180 to 5.320 GHz; 8 channels5.500 to 5.700 GHz, 8 channels (excludes 5.600 to 5.650 GHz)5.745 to 5.825 GHz; 5 channelsEurope2.412 to 2.472 GHz; 13 channels5.180 to 5.320 GHz; 8 channels5.500 to 5.700 GHz, 8 channels (excludes 5.600 to 5.640 GHz)Australia, New Zealand2.412 to 2.462 GHz; 11 channels5.180 to 5.320 GHz; 8 channels5.745 to 5.825 GHz; 5 channelsJapan2.412 to 2.472 GHz; 13 channels5.180 to 5.320 GHz; 8 channels5.500 to 5.700 GHz; 11 channels

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 775GHz HT20 AND HT40 Channels AvailableChannel NumberFrequency Mode Secondary Channel Allowed36 2180 HT40 PLUS38 5190 HT2040 5200 HT40 MINUS44 5220 HT40 PLUS46 5230 HT2048 5240 HT40 MINUS52 5260 HT40 PLUS54 5270 HT2056 5280 HT40 MINUS60 5300 HT40 PLUS62 5310 HT2064 5320 HT40 MINUS100 5500 HT40 PLUS102 5510 HT20104 5520 HT40 MINUS108 5540 HT40 PLUS110 5550 HT20112 5560 HT40 MINUS116 5580 HT40 PLUS118 5590 HT20120 5600 HT40 MINUS124 5620 HT40 PLUS126 5630 HT20128 5640 HT40 MINUS132 5660 HT40 PLUS134 5670 HT20136 5680 HT40 MINUS140 5700 HT20149 5745 HT40 PLUS151 5755 HT20153 5765 HT40 MINUS

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 78Receive SensitivityElectrical CharacteristicsAbsolute Maximum RatingsNote that other nterfaces not specifically mentioned are the same as GPIOs. 157 5785 HT40 PLUS159 5795 HT20161 5805 HT40 MINUS165 5825 HT20Network Type Sensitivity802.11 b -88 dBm802.11 g -88 dBm802.11 n (2.4 GHz) -89 dBm802.11 a -90 dBm802.11 n (5 GHz, 20 MHz Bandwidth) -90 dBm802.11 n (5 GHz, 40 MHz Bandwidth) -86 dBmParameter Min Max UnitVDD_5V -0.3 5.25 VBattery -0.3 4.242 VPswitch -0.3 Battery/2 VUSB DP and DN -0.3 3.63 VGPIO -0.3 3.6 VEthernet TX +/- and RX +/- -0.5 4 VChannel NumberFrequency Mode Secondary Channel Allowed

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 79Voltage SuppliesSupply CurrentTra nsm it P owe rGPIO DC ParametersParameter Min Typ Max Unit5V Supply 4.75 55.25 VBattery Supply 3.4 4.2 VSettings Supply CurrentWi-Fi 2.4 GHz Transmit, CPU 545 MHz, 50%, UART active475 mAWi-Fi 5 GHz Transmit, CPU 545 MHz, 50%, UART active600 mAWi-Fi 5 GHz Recieve CPU Idle (Auto Slow) 300 mAWi-Fi 2.4 GHz Recieve CPU Idle (Auto Slow) 325 mANetwork Type Transmit Power802.11 b 10.5 dBm802.11 g/n 11 dBm802.11 a/n 13 dBmParameter Min Max UnitInput Voltage high (DC) 23.3 VInput Voltage low (DC) -0.8 VOutput Voltage high (DC) 4.64 - VOutput Voltage low (DC) -0.4 VOutput Source Current (DC) gpio, gpio_f and gpio_nobs 4mA setting 3.8 6.8 mA 8mA setting 7.6 13.6 mA 12mA setting 12.1 24.5 mAOutput Sink Current (DC) gpio, gpio_f, and gpio_nobs 4mA setting 48.1 mA 8mA setting 8.1 16.4 mA 12mA setting 12.1 24.5 mA

ConnectCore™ for i.MX28 Hardware Reference © 2013 Digi International, Inc. 80See the Freescale i.MX28 data sheet and manual for full details.Agency ApprovalsOutput Source Current (DC) gpio_clk 8mA setting 7.6 13.6 mA 16mA setting 15.2 27.2 mAOutput Sink Current (DC) gpio_clk 8mA setting 8.1 15.4 mA 16mA setting 16.2 30.6 mA10k pull-up resistance 812 kΩ47k pull-up resistance 39 56 kΩSpecification ConnectCard™ for i.MX28United States (FCC Part 15.247) FCC ID: MCQ-CCIMX28Industry Canada (IC) IC: 1846A-CCIMX28Europe (DC) ETSIAustralia PendingJapan PendingUR PendingVCCI PendingParameter Min Max Unit

© 2013 Digi International, Inc. 81Module Dimensions APPENDIX B

© 2013 Digi International, Inc. 82Change LogAPPENDIX CThe following changes were made to this document in the revisions listed below.Revision 0.1Creation. Revision 0.2Correction of FCC and IC approval IDs.

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