VersaLogic VL-EBX-38 Hardware Reference Manual
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VersaLogic VL-EBX-38 Hardware Reference Manual

Viper intel atom-based single board computer with dual ethernet, video, usb, sata, serial i/o, digital i/o, analog i/o, trusted platform module security, counter/timers, mini pcie, msata, pc/104-plus interface, spx.
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Hardware
Reference
Manual
REV. June 2017
Viper
(VL-EBX-38)
Intel
Atom™-based Single
®
Board Computer with Dual
Ethernet, Video, USB, SATA,
Serial I/O, Digital I/O, Analog
I/O, Trusted Platform Module
security, Counter/Timers, Mini
PCIe, mSATA, PC/104-Plus
Interface, and SPX.

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Summary of Contents for VersaLogic VL-EBX-38

  • Page 1: Reference Manual

    Hardware Reference Manual REV. June 2017 Viper (VL-EBX-38) Intel Atom™-based Single ® Board Computer with Dual Ethernet, Video, USB, SATA, Serial I/O, Digital I/O, Analog I/O, Trusted Platform Module security, Counter/Timers, Mini PCIe, mSATA, PC/104-Plus Interface, and SPX.
  • Page 2 Copyright © 2017 VersaLogic Corp. All rights reserved. Notice: Although every effort has been made to ensure this document is error-free, VersaLogic makes no representations or warranties with respect to this product and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.

  • Page 3: Technical Support

    VersaAPI . VersaTech KnowledgeBase is an invaluable resource for resolving technical issues with your VersaLogic product. If you have additional questions, contact VersaLogic Technical Support at (503) 747-2261. VersaLogic support engineers are also available via e-mail at Support@VersaLogic.com. EPAIR ERVICE If your product requires service, you must obtain a Returned Material Authorization (RMA) number by calling (503) 747-2261.

  • Page 4: Rohs Compliance

    (PBDE) flame retardants, in certain electrical and electronic products sold in the European Union (EU) beginning July 1, 2006. VersaLogic Corporation is committed to supporting customers with high-quality products and services meeting the European Union’s RoHS directive.
  • Page 5 OUNTING UPPORT The single board computer must be supported at all eight mounting points to prevent excessive flexing when expansion modules are attached and removed. Flex damage caused by excessive force on an improperly mounted circuit board is not covered under the product warranty. See page 5 for more details.

  • Page 6: Table Of Contents

    Contents Introduction ........................1 Description .......................... 1 Technical Specifications ..................... 3 Thermal Considerations ...................... 3 EBX-38 Block Diagram ...................... 4 Dimensions and Mounting ....................5 Hardware Assembly ....................6 Related Documents ......................6 Configuration and Setup ....................7 Initial Configuration ......................7 Basic Setup .........................
  • Page 7 VGA Interface ........................37 Cabling ......................... 38 LVDS Interface ......................... 39 LVDS Panel Displays Tested with the EBX-38 ............... 39 LVDS Cables Available from VersaLogic ............... 40 Mini DisplayPort Connectors ................... 41 Console Redirection ......................42 Network Interfaces ...................... 43 Ethernet Connectors ....................
  • Page 8 Figures Figure 1. Attaching the EBX-38 to Earth Ground .............. v Figure 2. VL-EBX-38 Viper Single Board Computer (Top Side) ........2 Figure 3. VL-EBX-38 Viper Single Board Computer (Bottom Side) ......... 3 Figure 4. EBX-38 Dimensions and Mounting Holes ............5 Figure 5.
  • Page 9 Table 17: LVDS Panel Types and Jumper Configurations ..........39 Table 18: LVDS Panel Displays Tested ................39 Table 19: LVDS Cables Available from VersaLogic ............40 Table 20: J3/J30 Mini DisplayPort Connector Pinout ............42 Table 21: Ethernet Connector Pinout ................44 Table 22: Ethernet Status LEDs ..................
  • Page 10 Contents Table 28. Digital I/O Using VL-CBR-2005A 1 ..............56 Table 29. Digital I/O Using VL-CBR-2005A 2 ..............57 Table 30. Analog I/O Using VL-CBR-2004A ..............58 Table 31. CPU Thermal Trip Points ................. 62 Table 32. Temperature Monitoring Programs ..............62 Table 33.

  • Page 11: Introduction

    Introduction Description The EBX-38 Viper is a low power / high-performance single board computer (SBC) which combines Intel’s advanced Bay Trail processor, with a traditional PC/104-Plus* expansion interface. This combination makes it easy to upgrade existing systems to a powerful 4th generation Intel Atom* processor, while preserving plug-in expansion to existing specialty I/O boards.

  • Page 12: Figure 2. Vl-Ebx-38 Viper Single Board Computer (Top Side)

    Introduction Figure 2. VL-EBX-38 Viper Single Board Computer (Top Side) EBX-38 Hardware Reference Manual...

  • Page 13: Technical Specifications

    Introduction Figure 3. VL-EBX-38 Viper Single Board Computer (Bottom Side) Technical Specifications See the Viper Data Sheet for complete specifications. Thermal Considerations The operating temperature for the EBX-38 is -40 °C to +85 °C, de-rated -1.1 °C per 305m (1,000 ft.) above 2,300m (7,500 ft.).

  • Page 14: Ebx-38 Block Diagram

    Introduction EBX-38 Block Diagram EBX-38 Hardware Reference Manual...

  • Page 15: Dimensions And Mounting

    Introduction Dimensions and Mounting The EBX-38 complies with the PC/104 standard which provides for specific mounting holes and PC/104-Plus stack locations as shown below. Figure 4. EBX-38 Dimensions and Mounting Holes (Not to scale. All dimensions in inches.) CAUTION: The EBX-38 must be supported at all eight mounting points to prevent excessive flexing when expansion modules are attached and removed.

  • Page 16: Hardware Assembly

    (memory, I/O, and IRQs), a description of the FPGA’s registers, and programming information for the board’s hardware interfaces.  VersaAPI Installation and Reference Guide – describes the shared library of API calls for reading and controlling on-board devices on certain VersaLogic products. Additional documents: Processor Intel Atom E38xx (formerly Intel Atom Processor E3800 Product Family Datasheet “Bay Trail”) System-on-Chip...

  • Page 17: Configuration And Setup

    VGA video monitor  USB Keyboard  USB Mouse  SATA hard drive The following VersaLogic cables and accessories are recommended.  EBX-38 cable kit (CKR-VIPER)  VGA Video adapter cable (CBR-1204)  User I/O cable (CBR-4005) and accompanying paddleboard (CBR-4005B) ...
  • Page 18 Verify that the V10 jumper is selecting 5V (installed on pins 1 and 2). 4. Review Configuration  Before you power up the system, double-check all the connections. Make sure all cables are oriented correctly and that adequate power will be supplied to the VL-EBX-38 and peripheral devices. 5. Power On ...

  • Page 19: Jumper Blocks

    Configuration and Setup Jumper Blocks Figure 5. Jumpers Blocks in the As-Shipped Configuration UMPER UMMARY Table 1: V1 Jumper Summary RS-422/485 120 Ohm Termination Jumper Jumper Pins Rx End-point Termination for Out/Stored RS-422 RS-232 1 – 2 COM 1 RS-485 (Default) RS-422 RS-232...

  • Page 20: Table 3: V3 Jumper Summary

    Configuration and Setup Table 3: V3 Jumper Summary Data Format and bpp Jumper Pins Description 1 - 2 JEIDA or VESA 18 bpp when CFG2 = 1 (Default) 2 - 3 VESA 24 bpp when CFG2 = 0 Out (no jumper) JEIDA 24 bpp when CFG2 floats Table 4: V6, V7 Jumper Summary...

  • Page 21: Configuration Switches

    Configuration and Setup Table 6: V10 Jumper Summary Power Input Selection Jumper Jumper Pins Description 1 - 2 5V selection – enables V5_ATX switch 2 - 3 12V selection – enables V_WIDE voltage regulator Removal of the jumpers disables both 5V_ATX and V_WIDE. The diodes ensure that there is always a voltage on the pullups on the jumpers.

  • Page 22: Resetting The Bios To Factory Defaults

    Configuration and Setup SW1 Switch Description Position Reset BIOS to factory defaults (see page 12) Position 3 Off – Normal operation (default) On – Resets BIOS to factory defaults when the board boots. Position 4 For factory use only. Always leave in the Off position. Position 5 SPI Flash Security –...

  • Page 23: Bios Setup Utility

    The operating systems listed on the VersaLogic OS Compatibility Chart use the standard installation procedures provided by the maker of the OS. Special optimized hardware drivers for a particular operating system, or a...

  • Page 24: Board Features

    1.35 V  Type DDR3L (VersaLogic VL-MM9 Series modules) Note: Boards are designed for extended temperature use, so the memory refresh rate is always set to 3.9µs (double the standard refresh rate). Single core processors can only utilize one SO-DIMM (J9).

  • Page 25: Power Delivery

    Board Features Power Delivery OWER ONNECTOR The figure below shows the location and pin orientation of the main power connector. Figure 7. Location and Pin Orientation of the Main Power Connector CAUTION: To prevent severe and possibly irreparable damage to the system, it is critical that the power connector is wired correctly.

  • Page 26: Cabling

    Board Features The table below lists the pinout for the main power connector. Table 8: J20 Main Power Connector Pinout Signal Description PS_ON# Tied to Signal Ground on board (always enabled, active low) Signal Ground (see Note #1) Signal Ground (see Note #1) +12V Not used on-board but is passed through to PC/104 and PC/104-Plus connectors, board signal name is V12_ATX...

  • Page 27: Power Delivery Considerations

    ELIVERY ONSIDERATIONS Using the VersaLogic approved 12V power supply (VL-PS-ATX12-300A) and power cable (VL- CBR-1203) or the 5V power supply (VL-PS200-ATX) and power cable (VL-CBR-2022) ensures high quality power delivery to the board. Customers who design their own power delivery methods should take into consideration the guidelines below to ensure good power connections.

  • Page 28: Power Button

    Board Features OWER UTTON User I/O connector J4 includes an input for a push-button power switch. Shorting J4, pin 17 to ground causes the board to enter an S5 power state (similar to the Windows Shutdown state). Shorting it again returns the board to the S0 power state and reboots the board. The button can be configured in Windows to enter an S3 power state (Sleep, Standby, or Suspend-to-RAM), an S4 power state (Hibernate or Suspend-to-Disk), or an S5 power state (Shutdown or Soft-Off).

  • Page 29: Battery Power Options

    Board Features ATTERY OWER PTIONS The battery circuit on the EBX-38 provides power for the Real-Time Clock (RTC) and power to store BIOS Setup utility settings in non-volatile RAM. The EBX-38 has multiple options for providing battery power:  Use an external battery, connected to the board through the J8 external battery connector. ...

  • Page 30: Vl-Cbr-0203 External Battery Module

    ATTERY ODULE The VL-CBR-0203 external battery module is compatible with the EBX-38. For more information, contact Sales@VersaLogic.com. Figure 9. VL-CBR-0203 Latching Battery Module Real Time Clock (RTC) The EBX-38 features a real-time clock/calendar (RTC) circuit. The RTC can be set using the BIOS Setup utility.

  • Page 31: Leds/Indicators

    Board Features LEDs/Indicators This table shows the locations of the boards LEDs/indicators. Figure 10. Locations of the LEDs/Indicators Description Location PCIe Mini Card 0 D8/D9 LEDs PCIe Mini Card 1 D23/D24 LEDs FPGA Debug LED GRN: On = S0 power is good, blinks when in S3 sleep state.

  • Page 32: Programmable Led

    Board Features Description Location Integrated RJ45 Ethernet 1 LEDs Left is green (link/activity), Right is yellow (1Gbit Speed) indicator. ROGRAMMABLE User I/O connector J4 includes an output signal for attaching a software controlled LED. Connect the cathode of the LED to J4, pin 16; connect the anode to +3.3 V. An on-board 120 Ω resistor limits the current when the circuit is turned on.

  • Page 33: Mass Storage Interfaces

    Mass Storage Interfaces SATA The EBX-38 provides two SATA 2.0 ports (J2 and J36). When mSATA is used, the SATA channel for J36 will not be available. Power to the SATA drive is provided by the ATX power supply. Note that the standard SATA drive power connector is different from the typical 4-pin Molex connector used on IDE drives.

  • Page 34: Microsd Socket

    Mass Storage Interfaces microSD Socket The figure below shows the location of the microSD socket. The VL-F41 series of microSD cards provide solid-state storage of 2 GB, 4 GB, or 8 GB. The microSD socket accommodates cards with up to 64 GB of storage capacity. No drivers are needed, as the device interface is abstracted as a standard parallel IDE drive on the master IDE channel.

  • Page 35: Multi-Purpose I/O

    Multi-purpose I/O USB Interfaces The EBX-38 offers a total of 1 on-board USB 3.0 port, 4 off-board (paddleboard) USB 2.0 ports, and 4 on-board USB ports (2 to the Type A connectors and two for the Mini Cards). An additional USB 2.0 port is paired with the USB 3.0 port. This configuration requires two USB hubs;...

  • Page 36: Pcie Mini Card / Msata

    The VL-MPEs-F1E series of mSATA modules provide flash storage of 4 GB, 16 GB, or 32 GB. For more information on PCIe Mini Cards offered by VersaLogic, contact Sales@VersaLogic.com. To secure a Mini Card or mSATA module to the on-board standoffs, use two M2.5 x 6mm pan head Philips nylon screws.
  • Page 37 Multi-purpose I/O PCIe Mini Card PCIe Mini Card mSATA mSATA Signal Name Function Signal Name Function Not connected Reserved Not connected Ground Ground Not connected Reserved Not connected Not connected Reserved Not connected Ground Ground Not connected Reserved Not connected W_DISABLE# Wireless disable Reserved...

  • Page 38: Pcie Mini Card Leds

    Multi-purpose I/O The Mini Card specification states that there are three LED outputs: WWAN, WLAN and WPAN. There are on-board LEDs for each of these. A fourth LED is used to indicate when the Mini Card is powered (since the Mini Card power can be configured to either be always-on or on in S0).

  • Page 39: User I/O Connector

    Multi-purpose I/O User I/O Connector The 40-pin J4 I/O connector incorporates the signals for the following:  Four USB ports  Eight GPIO lines (these are functionally muxed with six timer I/O signals per FPGA registers). The eight GPIO lines on the paddleboard each have an alternate mode, accessible using the FPGA’s AUXMOD1 register.

  • Page 40: Cabling

    Multi-purpose I/O This table provides the pinout of the user I/O connector. Table 13: J4 I/O Connector Pinout and Pin Orientation Signal Signal +5 V (V5_USB01) USB0_P USB1_P USB0_N USB1_N +5V (V5_USB23) USB2_P USB3_P USB2_N USB3_N +3.3 V (Note 1) SPKR# PLED# PWR_BTN#...

  • Page 41: Digital I/O (Dio)

    DIO lines. The pull-ups implemented on-board are 10kΩ values. After reset, the DIO lines are set as inputs with pull-ups that will be detected as a HIGH state to external equipment. VersaLogic provides a set of application programming interface (API) calls for managing the DIO lines. See the VersaAPI Support Page for information.

  • Page 42: Dio Guidelines

    Multi-purpose I/O Table 14: J21/J26 I/O Connector Pinout J21/J26 VL-CBR-2004B Terminal Block Signal Terminal Block Digital I/O 1/17 Digital I/O 2/18 Digital I/O 3/19 Digital I/O 4/20 Ground Digital I/O 5/21 Digital I/O 6/22 Digital I/O 7/23 Digital I/O 8/24 Ground Digital I/O 9/25 Digital I/O 10/26...

  • Page 43: Power States

    Multi-purpose I/O OWER TATES CPU power states will affect voltage rails driving DIO circuits as described below:  The DIO power (which includes the pullup voltage) can be controlled (the same power used for the 8x GPIOs on the CBR-4005 paddleboard) using an FPGA register setting. By default, the DIOs power-down in sleep modes but can be configured to always stay on (along with the GPIOs).

  • Page 44: Serial Ports

    Serial Ports The EBX-38 features four on-board 16550-based serial communications channels located at standard PC I/O addresses. The serial ports can be operated in RS-232 4-wire, RS-422, or RS-485 modes. IRQ lines are chosen in the BIOS Setup utility. Each COM port can be independently enabled, disabled, or assigned a different I/O base address in the BIOS setup utility.

  • Page 45: Serial Port Connector Pinouts

    Serial Ports ERIAL ONNECTOR INOUTS Table 15: J13 COM1/COM2, J23 COM3/COM4 Connector Pinout RS-232 Signal RS-422/RS-485 Signal Port RTS1 TXD1_P TXD1# TXD1_N COM1 or COM3 CTS1 RXD1_P RXD1# RXD1_N — RTS2 TXD2_P TXD2# TXD2_N COM2 or COM4 CTS2 RXD2_P RXD2# RXD2_N —...

  • Page 46: Com1/Com2/Com3/Com4 Hardware Configuration

    Serial Ports COM1/COM2/COM3/COM4 Hardware Configuration Jumper block V1 [1-2] enables the RS-422/485 termination resistor for COM1. Jumper V1 [3-4] enables the RS-422/485 termination resistor for COM2. Jumper block V1 [5-6] enables the RS- 422/485 termination resistor for COM3. Jumper V1 [7-8] enables the RS-422/485 termination resistor for COM4.

  • Page 47: Video Interfaces

    Video Interfaces The EBX-38 incorporates the Intel Gen-7 graphics core with four Execution Units and Turbo Boost. It supports two independent displays. It also supported formats including DirectX* 11, OpenGL 3, VP8, MPEG2, H.264, VC1, 2 HD streams (1080p@30fps), Flash and WMP support. The analog (VGA), Dual Channel LVDS, and Mini DisplayPort video interfaces support Extended Desktop, Clone, and Twin display modes.

  • Page 48: Cabling

    Video Interfaces This table lists the signals of the VGA video output connector. Table 16: J5 VGA Video Output Pinout Signal (Function) DB-15 Pin Ground RED (Red video) Ground GREEN (Green video) Ground BLUE (Blue video) Ground HSYNC (Horizontal sync) Ground VSYNC (Vertical sync) CRT_SCL (DDC data clock line)

  • Page 49: Lvds Interface

    Video Interfaces LVDS Interface Removal of jumper V9 disables J30 (the second Mini DisplayPort connector), and enables J33 Dual-Channel LVDS instead. The panel type select jumpers (V2, V3, V6, and V7) configure the EBX-38 for the LVDS display device. When choosing a display device, match the characteristics of your selection to the data in the first column of the table below.

  • Page 50: Lvds Cables Available From Versalogic

    12.1 inches (31 cm) VL-CBR-3002 LM230WF3-SLD1 1920x1080 (HD 1080) 23 inches (58.4 cm) VL-CBR-3001 LVDS Cables Available from VersaLogic Table 19: LVDS Cables Available from VersaLogic VersaLogic Part Number Length Channels Function VL-CBR-3001 20 inches 30-pin JAE to 30-pin JAE...

  • Page 51: Mini Displayport Connectors

    Video Interfaces Mini DisplayPort Connectors The Mini DisplayPort connectors J3 and J30 both support resolutions up to 2560 x 1440 at 24- bit. DisplayPort consists of three interfaces:  Main Link – transfers high-speed isochronous video and audio data  Auxiliary channel –...

  • Page 52: Console Redirection

    Video Interfaces Table 20: J3/J30 Mini DisplayPort Connector Pinout Signal Signal HOT PLUG DETECT ML_LANE0_P CONFIG 1 ML_LANE0_N CONFIG 2 ML_LANE1_P ML_LANE3_P ML_LANE1_N ML_LANE3_N ML_LANE2_P AUX_CH_P ML_LANE2_N AUX_CH_N DP_POWER Console Redirection The EBX-38 can be configured for remote access by redirecting the console to a serial communications port.

  • Page 53: Network Interfaces

    Network Interfaces The EBX-38 provides two on-board Intel I210-IT Gigabit Ethernet controllers. The controllers provide a standard Ethernet interface for 1000Base-T, 100Base-TX, and 10Base-T applications. The I210-IT Ethernet controller auto-negotiates connection speed. Drivers are available to support a variety of operating systems. THERNET ONNECTORS The J1/J7 connectors provide access to the Ethernet ports 0 and 1.

  • Page 54: Cabling

    Network Interfaces Table 21: Ethernet Connector Pinout J1 and J7 - (XMRJ45MGL2RA) 10/100 Signals 10/100/1000 Signals + Auto Switch (can be either Tx or Rx) BI_DA+ - Auto Switch (can be either Tx or Rx) BI_DA- + Auto Switch (can be either Tx or Rx) BI_DB+ + Auto Switch (can be...

  • Page 55: On-Board Ethernet Status Leds

    Network Interfaces OARD THERNET TATUS On-board status LEDs are provided for both Ethernet ports:  J1 (green LED) provides status for Ethernet port 0  J7 (green LED) provides status for Ethernet port 1 Figure 22. Location of Ethernet Status LEDs Table 22: Ethernet Status LEDs Ref Des State...

  • Page 56: Expansion Interfaces

    Expansion Interfaces SPX™ Expansion Bus Up to four serial peripheral expansion (SPX) devices can be attached to the EBX-38 at connector J19 using a CBR-1401 or 1402 cable. The SPX interface provides the standard serial peripheral interface (SPI) signals: CLK, MISO, and MOSI, as well as four chip selects, SS0#, SS1#, SS2#, and SS3# and INT#.

  • Page 57: Cabling

    XPANSION ODULES VersaLogic offers several SPX modules that provide a variety of standard functions, such as analog input, digital I/O, CANbus controller, and others. These are small boards (1.2 inches x 3.775 inches) that can mount on the PC/104 and PC/104-Plus stack, using standard PC/104 stand-offs, or up to two feet away from the base board.

  • Page 58: Pc/104-Plus Expansion Bus

    Expansion Interfaces PC/104-Plus Expansion Bus The EBX-38 provides a legacy stack-up PCI connector at locations J11(for PCI) and J10A and J10B (for ISA) on the top side of the board for PC/104-Plus (PCI +ISA) as well as PCI-104 (PCI only) and PC/104 (ISA only) expansion modules. Figure 2 on page 2 shows the locations of these connectors.

  • Page 59: Isa Memory Support

    Expansion Interfaces The next table lists the I/O ranges available on the ISA bus unless there is a device claiming the range on the LPC or PCI bus. The FPGA on the EBX-38 uses I/O addresses 0xC80-0xCCF and, if enabled, the four COM ports that can be configured in the BIOS Setup utility to map to various address ranges will be blocked by the FPGA from ISA I/O accesses.

  • Page 60: Each Of The Irqs Must Be Enabled In The Bios Setup Utility Before They Can Be Used. (All Are Disabled By Default.)

    Expansion Interfaces   IRQ3 IRQ9   IRQ4 IRQ10   IRQ5 IRQ11   IRQ6 IRQ12   IRQ7 IRQ15 Each of the IRQs must be enabled in the BIOS Setup utility before they can be used. (All are disabled by default.) Because ISA IRQ sharing is not supported, IRQs may not be available to the ISA bus due to operating system limitations.

  • Page 61: System Resources And Maps

    System Resources and Maps Refer to the EBX-38 Programmer’s Reference Manual for the following information:  Memory map  IRQ map  I/O map  FPGA register map  FPGA register descriptions  Programming information for certain hardware interfaces. EBX-38 Hardware Reference Manual...

  • Page 62: Cbr-4005B Paddleboard

    CBR-4005B Paddleboard CBR-4005B Paddleboard CBR-4005B C ONNECTORS AND NDICATORS The figure below shows the locations of the connectors, switches, and LEDs on the CBR-4005B paddleboard. Figure 24. CBR-4005B Connectors, Switches, and LEDs EBX-38 Hardware Reference Manual...

  • Page 63: User I/O Connector

    CBR-4005B Paddleboard I/O C ONNECTOR This figure shows the location and pin orientation of the user I/O connector. Figure 25. Location and Pin Orientation of the User I/O Connector Table 26: User I/O Connector Pinout Signal Signal +5 V USB1_P USB2_P USB1_N USB2_N...

  • Page 64: Cabling

    CBR-4005B Paddleboard ABLING An adapter cable, part number CBR-4005A, is available for connecting the CBR-4005B paddleboard to the EBX-38. This is a 12-inch, Pico-Clasp 40-pin to 40-pin cable If your application requires a custom cable, the following information will be useful: CBR-4005B Board Connector Mating Connector Molex 501571-4007...

  • Page 65: Table 27: Auxiliary I/O Connector Pinout

    CBR-4005B Paddleboard Table 27: Auxiliary I/O Connector Pinout Signal Signal Reserved V_BATT Reserved V_BATT_RETURN FPGA GPIO1 FPGA GPIO2 FPGA GPIO3 FPGA GPIO4 FPGA GPIO5 FPGA GPIO6 FPGA GPIO7 FPGA GPIO8 +3.3 V Ethernet Port 0 LED Ethernet Port 1 LED Figure 27.

  • Page 66: Digital And Analog I/O Paddleboards

    Digital and Analog I/O Paddleboards Digital I/O (Using VL-CBR-2005A x2 ) Two Microchip MCP23S17 digital I/O expander devices are used to provide thirty-two I/O lines. The digital lines are grouped into two sets (per two devices) of 16-bit bi-directional ports. Within each MCP23S17 device, the 16-bit I/O port functionality consists of two 8-bit ports, and can be configured to operate in 8-bit or 16-bit mode and controlled by software.

  • Page 67: Table 29. Digital I/O Using Vl-Cbr-2005A 2

    CBR-2004B Paddleboard Table 29. Digital I/O Using VL-CBR-2005A 2 CBR-2004B CBR-2004B J#-Pin# Signal EBX-38 Description J#-Pin# Signal EBX-38 Description DIO1 Digital I/O Ch. 1 DIO1 Digital I/O Ch. 17 J1-5 J1-5 DIO2 Digital I/O Ch. 2 DIO2 Digital I/O Ch. 18 J1-4 J1-4 DIO3...

  • Page 68: Analog I/O (Using Vl-Cbr-2004A)

    CBR-2004B Paddleboard Analog I/O (Using VL-CBR-2004A) A Linear Tech LTC1857 A/D device operates off a single 5V supply to provide eight 12-bit analog inputs. The LTC1857 provides eight single-ended input channels; or alternatively each even and odd analog channel “pair” (for example inputs 1 and 2 or 5 and 6) can be combined as differential inputs or you can also have combinations of both single-ended and differential channels.
  • Page 69 CBR-2004B Paddleboard Figure 28. CBR-2004 Analog I/O Connectors EBX-38 Hardware Reference Manual...

  • Page 70: Thermal Considerations

    By itself, the heat plate is not a complete thermal solution. Integrators should either implement a thermal solution using the accessories available from VersaLogic or develop their own thermal solution that attaches to the heat plate, suitable for environments in which the EBX-38 will be used.

  • Page 71: System-Level Considerations

    Thermal Considerations YSTEM LEVEL ONSIDERATIONS The EBX-38 thermal solutions – either the HDW-406 heat sink alone or with the HDW-407 fan – are part of the larger thermal system of the application. Other PC/104 boards stacked above the Viper and any other nearby heat sources (power supplies or other circuits), all contribute to how the EBX-38 will perform from a thermal standpoint.
  • Page 72 Thermal Considerations Table 31. CPU Thermal Trip Points Trip Point Description Active (Note 1) The fan is turned on when this temperature is reached At this temperature, the CPU cores throttle back to a lower speed. This Passive (Note 2) reduces the power draw and the temperature.

  • Page 73: Thermal Specifications, Restrictions, And Conditions

    Due to the unknown nature of the entire thermal system, or the performance requirement of the application, VersaLogic cannot recommend a particular thermal solution. This information is provided for user guidance in the design of their overall thermal system solution.

  • Page 74: Ebx-38 Thermal Characterization

    The table below describes the thermal testing setup for the board. Table 34. EBX-38 Thermal Testing Setup EBX-38 (Viper) core CPU with:  8 GB of DDR3 DRAM (VersaLogic part number VL-MM9-4EBN)  HDW-406 (passive heat sink)  HDW-407 (heat sink fan) Hardware Configuration ...

  • Page 75: Test Results

    Thermal Considerations ESULTS Test Scenario 1: Single Core EBX-38EAP - Passive and Active Performance The figure below shows the thermal performance of the EBX-38EAP using the Atom E3815 processor. Figure 29. EBX-38EAP CPU Core Temperature Relative to Ambient Temperature Test Scenario 2: Dual Core EBX-38EBP - Passive and Active Performance This figure shows the thermal performance of the EBX-38EBP using the Atom E3826 processor.
  • Page 76 Thermal Considerations Test Scenario 3: Quad Core EBX-38ECP - Passive and Active Performance The active and passive performance of the Atom E3845 version of the Viper will typically require a heat sink + fan for operation above 80 ºC, at >90% CPU utilization. Figure 31.

  • Page 77: Installing The Versalogic Thermal Solutions

    Thermal Considerations Installing the VersaLogic Thermal Solutions The following thermal solution accessories are available from VersaLogic:  VL-HDW-401 Thermal Compound Paste - used to mount the heat sink to the heat plate  VL-HDW-406 Passive Heat Sink – mounts to standard product.
  • Page 78 Thermal Considerations  Using the figure below as a guide, align the mounting holes of the heat sink fan with the four holes in the passive heat sink. Position the fan so that its power cable is on the side nearest the J24 CPU fan connector.
  • Page 79 KNOWN ISSUES • When the V9 jumper is not installed to enable the LVDS output, the LVDS resolution set by jumpers V6 and V7 will also select the VGA or DP resolution whenever the Screen Resolution is set as “Duplicate these displays” in Windows 7 Control Panel\All Control Panel Items\Display\Screen Resolution.

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