Viper Hardware Ref Manual Datasheet by VersaLogic Corporation

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Hardware
Reference
Manual
REV. May 2019
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.
ooooooooooo WWW.VERSALOGIC.COM
EBX-38 Hardware Reference Manual ii
WWW.VERSALOGIC.COM
12100 SW Tualatin Road
Tualatin, OR 97062-7341
(503) 747-2261
Fax (971) 224-4708
Copyright © 2017-2019 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.
VersaLogic reserves the right to revise this product and associated documentation at any time without
obligation to notify anyone of such changes.
PC/104 and the PC/104 logo are trademarks of the PC/104 Consortium.
* Other names and brands may be claimed as the property of others.
EBX-38 Product Sugyon Web Page VersaTech KnowledgeBase SuyyorlCIDVe uLovianm
EBX-38 Hardware Reference Manual iii
Product Release Notes
Release 1.6 May 2019 Updated HDW-108 screw information on page 27
Release 1.5 March 2019 Added V8 Jumper information
Release 1.4 September 2018 Added LVDS backlight table
Release 1.3 September 2018 Added a CBR 2004 dimensions diagram
Release 1.2 May 2018 Inserted an improved block diagram
Release 1.1 June 2017 Updated Power Delivery Considerations section
Release 1.0 March 2017 Initial Release
Technical Support
The EBX-38 support page, at EBX-38 Product Support Web Page, contains additional
information and resources for this product including:
Reference Manuals (PDF format)
Operating system information and software drivers
Data sheets and manufacturers’ links for chips used in this product
BIOS information and upgrades
Utility routines and benchmark software
VersaAPI
The 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.
REPAIR SERVICE
If your product requires service, you must obtain a Returned Material Authorization (RMA)
number by calling (503) 747-2261.
Provide the following information:
Your name, the name of your company, your phone number, and e-mail address
The name of a technician or engineer that can be contacted if any questions arise
Quantity of items being returned
The model and serial number (barcode) of each item
A detailed description of the problem
Steps you have taken to resolve or recreate the problem
The return shipping address
EBX-38 Hardware Reference Manual iv
Warranty Repair All parts and labor charges are covered, including return shipping
charges for UPS Ground delivery to United States addresses.
Non-warranty Repair All non-warranty repairs are subject to diagnosis and labor charges,
parts charges and return shipping fees. Specify the shipping method
you prefer and provide a purchase order number for invoicing the
repair.
Note: Mark the RMA number clearly on the outside of the box before returning. Failure to do so can delay
the processing of your return.
RoHS Compliance
The EBX-38 is RoHS-compliant.
ABOUT ROHS
In 2003, the European Union issued Directive 2002/95/EC regarding the Restriction of the use of
certain Hazardous Substances (RoHS) in electrical and electronic equipment.
The RoHS directive requires producers of electrical and electronic equipment to reduce to
acceptable levels the presence of six environmentally sensitive substances: lead, mercury,
cadmium, hexavalent chromium, and the presence of poly-brominated biphenyls (PBB) and poly-
brominated diphenyl ethers (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.
Cautions
ELECTROSTATIC DISCHARGE
Electrostatic discharge (ESD) can damage boards, disk drives and other components. The circuit
board must only be handled at an ESD workstation. If an approved station is not available, some
measure of protection can be provided by wearing a grounded antistatic wrist strap. Keep all
plastic away from the board, and do not slide the board over any surface.
After removing the board from its protective wrapper, place the board on a grounded, static-free
surface, component side up. Use an antistatic foam pad if available.
The board should also be protected inside a closed metallic anti-static envelope during shipment
or storage.
Note: The exterior coating on some metallic antistatic bags is sufficiently conductive to cause excessive
battery drain if the bag comes in contact with the bottom-side of the EBX-38.
LITHIUM BATTERY
To prevent shorting, premature failure or damage to the lithium battery, do not place the board on
a conductive surface such as metal, black conductive foam or the outside surface of a metalized
ESD protective pouch. The Lithium battery may explode if mistreated. Do not recharge,
disassemble, or dispose of in fire. Dispose of used batteries promptly.
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EBX-38 Hardware Reference Manual v
MOUNTING SUPPORT
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.
EARTH GROUND REQUIREMENT
All mounting standoffs should be connected to earth ground (chassis ground). This provides
proper grounding for EMI purposes. The figure below shows the locations of the board’s
mounting holes. All mounting holes identified in below must be connected to earth ground.
Figure 1. Attaching the EBX-38 to Earth Ground
EBX-38 Hardware Reference Manual vi
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 ......................................................................................................................... 7
Jumper Blocks .................................................................................................................... 9
Jumper Summary ................................................................................................... 9
Configuration Switches .................................................................................................... 12
Resetting the BIOS to Factory Defaults .............................................................. 13
Clearing RAM and RTC Registers ...................................................................... 13
BIOS Setup Utility ............................................................................................................ 14
Operating System Installation ........................................................................................... 14
Board Features ............................................................................................................ 15
CPU ................................................................................................................................... 15
System RAM ..................................................................................................................... 15
I/O Interfaces .................................................................................................................... 15
Power Delivery ................................................................................................................. 16
Main Power Connector ........................................................................................ 16
Cabling ................................................................................................................. 17
Power Delivery Considerations ........................................................................... 18
Power Button ....................................................................................................... 19
Supported Power States ....................................................................................... 19
Battery Power Options ......................................................................................... 20
Cabling ................................................................................................................. 20
VL-CBR-0203 External Battery Module ............................................................. 21
Real Time Clock (RTC) .................................................................................................... 21
Push-Button Reset ............................................................................................................ 21
LEDs/Indicators ................................................................................................................ 22
Programmable LED ............................................................................................. 23
External Speaker ............................................................................................................... 23
Mass Storage Interfaces ............................................................................................. 24
SATA ................................................................................................................................ 24
microSD Socket ................................................................................................................ 25
Multi-purpose I/O ......................................................................................................... 26
USB Interfaces .................................................................................................................. 26
Contents
EBX-38 Hardware Reference Manual vii
PCIe Mini Card / mSATA ................................................................................................ 27
PCIe Mini Card LEDs ......................................................................................... 29
User I/O Connector ........................................................................................................... 30
Cabling ................................................................................................................. 31
Digital I/O (DIO) .............................................................................................................. 32
DIO Guidelines ................................................................................................................. 33
Voltage ................................................................................................................. 33
Power States ........................................................................................................ 34
Cables .................................................................................................................. 34
Analog I/O (AIO) ................................................................................................. 34
Serial Ports .................................................................................................................. 35
Serial Port Connectors ...................................................................................................... 35
Serial Port Connector Pinouts ............................................................................. 36
Cabling ................................................................................................................. 36
RS-485 Mode Line Driver Control ...................................................................... 36
COM1/COM2/COM3/COM4 Hardware Configuration .................................................. 37
Video Interfaces ........................................................................................................... 38
VGA Interface .................................................................................................................. 38
Cabling ................................................................................................................. 39
LVDS Interface ................................................................................................................. 40
LVDS Panel Displays Tested with the EBX-38 ............................................................... 41
LVDS Backlight ............................................................................................................... 41
LVDS Cables Available from VersaLogic ....................................................................... 41
Mini DisplayPort Connectors ........................................................................................... 42
Console Redirection ......................................................................................................... 43
Network Interfaces ...................................................................................................... 44
Ethernet Connectors ............................................................................................ 44
Cabling ................................................................................................................. 45
On-Board Ethernet Status LEDs .......................................................................... 46
Expansion Interfaces .................................................................................................. 47
SPX™ Expansion Bus ...................................................................................................... 47
Cabling ................................................................................................................. 48
VersaLogic SPX Expansion Modules ................................................................. 48
PC/104-Plus Expansion Bus ............................................................................................. 49
ISA Bus (on PC/104-Plus and PC/104 Expansion Modules) .............................. 49
ISA I/O Support ................................................................................................... 49
ISA Memory Support ........................................................................................... 50
ISA IRQ Support ................................................................................................. 50
Each of the IRQs must be enabled in the BIOS Setup utility before they can be
used. (All are disabled by default.) ...................................................................... 51
PCI Bus (on PC/104-Plus Expansion Modules) .................................................. 51
System Resources and Maps ..................................................................................... 52
CBR-4005B Paddleboard ............................................................................................ 53
CBR-4005B Paddleboard ................................................................................................. 53
CBR-4005B Connectors and Indicators .............................................................. 53
Contents
EBX-38 Hardware Reference Manual viii
User I/O Connector .............................................................................................. 54
Cabling ................................................................................................................. 55
On-board Battery ................................................................................................. 55
Auxiliary I/O Connector ...................................................................................... 55
Digital and Analog I/O Paddleboards ......................................................................... 57
Digital I/O (Using VL-CBR-2005A x2) ........................................................................... 57
Analog I/O (Using VL-CBR-2004A) ............................................................................... 59
Thermal Considerations ............................................................................................. 61
Selecting the Correct Thermal Solution for Your Application ........................................ 61
Heat Plate ............................................................................................................. 61
System-level Considerations ............................................................................... 62
CPU Thermal Trip Points .................................................................................... 62
Thermal Specifications, Restrictions, and Conditions ........................................ 64
Overall Restrictions and Conditions .................................................................... 64
Heat Plate Only Restrictions and Conditions: ..................................................... 64
Heat Sink Only Considerations: .......................................................................... 64
Heat Sink with Fan Considerations: .................................................................... 64
EBX-38 Thermal Characterization ................................................................................... 65
Test Results.......................................................................................................... 66
Installing the VersaLogic Thermal Solutions ................................................................... 68
Installing the Passive Heat Sink .......................................................................... 68
Installing the Heat Sink Fan ................................................................................ 68
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. Jumpers Blocks in the As-Shipped Configuration .............................................. 9
Figure 6. Location of SW1 Configuration Switch Block .................................................. 12
Figure 7. Location and Pin Orientation of the Main Power Connector ............................ 16
Figure 8. Location and Pin Orientation of the External Battery Connector ...................... 20
Figure 9. VL-CBR-0203 Latching Battery Module .......................................................... 21
Figure 10. Locations of the LEDs/Indicators .................................................................... 22
Figure 11. Location of the SATA Ports ............................................................................ 24
Figure 12. Location of the microSD Socket...................................................................... 25
Figure 13. Location of the USB Ports ............................................................................... 26
Figure 14. Location of PCIe Mini Card LEDs .................................................................. 29
Figure 15. Location and Pin Orientation of User I/O Connector ...................................... 30
Figure 16. Location and Pin Orientation of Digital I/O Connector .................................. 32
Figure 17. Location and Pin Orientation of Serial Port Connectors ................................. 35
Figure 18. COM1/COM2/COM3/COM4 End-point Termination Jumpers ..................... 37
Figure 19. VGA Connector Location and Pin Orientation ............................................... 38
Contents
EBX-38 Hardware Reference Manual ix
Figure 20. Location of the Mini DisplayPort Connectors ................................................. 42
Figure 21. Location for the J1/J7 Ethernet Connectors .................................................... 44
Figure 22. Location of Ethernet Status LEDs ................................................................... 46
Figure 23. J19 SPX Connector Location and Pin Configuration ...................................... 47
Figure 24. CBR-4005B Connectors, Switches, and LEDs ................................................ 53
Figure 25. Location and Pin Orientation of the User I/O Connector ................................ 54
Figure 26. Location and Pin Orientation of Auxiliary I/O Connector .............................. 55
Figure 27. CBR-4005B Dimensions and Mounting Holes ............................................... 56
Figure 28. CBR-2004 Analog I/O Connectors ................................................................. 60
Figure 29. CBR-2004 Dimensions .................................................................................... 60
Figure 30. EBX-38EAP CPU Core Temperature Relative to Ambient Temperature ....... 66
Figure 31. EBX-38EBP CPU Core Temperature Relative to Ambient Temperature ....... 66
Figure 32. EBX-38ECP CPU Core Temperature Relative to Ambient Temperature ....... 67
Figure 33. Installing the Passive Heat Sink ...................................................................... 68
Figure 34. Installing the Heat Sink Fan ............................................................................ 69
Tables
Table 1: V1 Jumper Summary ............................................................................................ 9
Table 2: V2 Jumper Summary ............................................................................................ 9
Table 3: V3 Jumper Summary .......................................................................................... 10
Table 4: V6, V7 Jumper Summary ................................................................................... 11
Table 5: V8 Jumper Summary .......................................................................................... 11
Table 6: V9 Jumper Summary .......................................................................................... 11
Table 7: V10 Jumper Summary ........................................................................................ 12
Table 8: Switch Setting Summary .................................................................................... 12
Table 9: J20 Main Power Connector Pinout ..................................................................... 17
Table 10: Supported Power States .................................................................................... 19
Table 11: USB 3.0 J16 Connector Pinout ......................................................................... 27
Table 12: PCIe Mini Card / mSATA Pinout ..................................................................... 27
Table 13: PCIe Mini Card LED States .............................................................................. 29
Table 14: J4 I/O Connector Pinout and Pin Orientation ................................................... 31
Table 15: J21/J26 I/O Connector Pinout ........................................................................... 33
Table 16: J13 COM1/COM2, J23 COM3/COM4 Connector Pinout ............................... 36
Table 17: J5 VGA Video Output Pinout ........................................................................... 39
Table 18: LVDS Panel Types and Jumper Configurations .............................................. 40
Table 19: LVDS Panel Displays Tested ........................................................................... 41
Table 20: LVDS Backlight Pinout ................................................................................... 41
Table 21: LVDS Cables Available from VersaLogic ...................................................... 41
Table 22: J3/J30 Mini DisplayPort Connector Pinout ...................................................... 43
Table 23: Ethernet Connector Pinout ................................................................................ 45
Table 24: Ethernet Status LEDs ........................................................................................ 46
Table 25: SPX Connector Pinout ...................................................................................... 48
Contents
EBX-38 Hardware Reference Manual x
Table 26: PC/104-Plus Connectors Maximum Current .................................................... 49
Table 27: Available ISA Bus I/O Ranges ......................................................................... 50
Table 28: User I/O Connector Pinout ............................................................................... 54
Table 29: Auxiliary I/O Connector Pinout ........................................................................ 56
Table 30. Digital I/O Using VL-CBR-2005A 1 ................................................................ 57
Table 31. Digital I/O Using VL-CBR-2005A 2 ................................................................ 58
Table 32. Analog I/O Using VL-CBR-2004A .................................................................. 59
Table 33. CPU Thermal Trip Points ................................................................................. 63
Table 34. Temperature Monitoring Programs ................................................................... 63
Table 35. Absolute Minimum and Maximum Air Temperatures ..................................... 64
Table 36. EBX-38 Thermal Testing Setup ........................................................................ 65
EBX-38 Hardware Reference Manual 1
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. In addition, it also contains a full complement of on-board I/O interfaces, including USB
3.0, Mini PCIe expansion sockets, TPM chip, A/D, D/A, and 32-bits of digital I/O. Its features
include:
Intel Atom* “Bay Trail” processor,
quad, dual, or single core with
processor clock rates up to 1.91 GHz
(Atom E38xx)
Integrated Intel Gen 7 graphics core
supports DirectX 11, OpenGL 4, and
H.264, MPEG-2 encoding/decoding.
Analog (VGA), Mini DisplayPort,
and LVDS video outputs. DisplayPort
supports HD audio output. Analog,
dual channel LVDS, and Mini
DisplayPort video outputs
Up to 16 GB DDR3L memory per
two SO-DIMM sockets for the quad
and dual core processors, 8 GB
DDR3L memory maximum with one
SO-DIMM socket for the single core
processor
Two Intel I210-IT-based Ethernet
ports, auto-detect 10Base-T /
100Base-TX / 1000Base-T
One USB 3.0 port and six USB 2.0
ports
Trusted Platform Module
Four RS-232/422/485 serial ports
Three 8254 timer/counters
8 general purpose I/Os
32 digital I/O lines
8 analog inputs
4 analog outputs
2 SATA ports, 3 Gb/s
Mini PCIe / mSATA socket, supports
Wi-Fi modems, GPS receivers, flash
storage, and other modules
Second Mini PCIe socket (without
mSATA support)
SPX expansion
EBX form factor with PC/104-Plus
expansion
Customization available
The EBX-38 is compatible with popular operating systems such as Microsoft Windows*,
Windows Embedded, Linux, VxWorks*, and QNX*.
EBX-38 boards are subjected to complete functional testing and are backed by a limited five-year
warranty. Careful parts sourcing and US-based technical support ensure the highest possible
quality, reliability, service, and product longevity for this exceptional single-board computer
(SBC).
The next figure shows the connectors and major components on the top side of the board.
Figure 3 shows the connectors and major components on the bottom side of the board.
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Introduction
EBX-38 Hardware Reference Manual 2
Figure 2. VL-EBX-38 Viper Single Board Computer (Top Side)
Introduction
EBX-38 Hardware Reference Manual 3
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.). All Viper models include a rigid-mount heat plate thermal solution.
Refer to the Chapter 13, beginning on page 61 for information on additional thermal solutions.
Introduction
EBX-38 Hardware Reference Manual 4
EBX-38 Block Diagram
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Introduction
EBX-38 Hardware Reference Manual 5
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. Flex damage caused by
excessive force on an improperly mounted circuit board is not covered under the
product warranty.
e EBX-38 Product Support Web Page: Intel Atom Processor E3800 Product Family Datasheet Intel 121(HT Du sheet httg://www.versalogic.com/QroducIs/PC lO4/index.asg httg://www.versalogic.com/QroducIs/PC lO4/index.asg
Introduction
EBX-38 Hardware Reference Manual 6
HARDWARE ASSEMBLY
The EBX-38 mounts on four hardware standoffs using the corner mounting holes, and four more
surrounding the PC/104-Plus area. These standoffs are secured to the underside of the circuit
board using pan head screws for the corner mounts, and four more standoffs for the topside in
PC/104-Plus area.
The entire assembly can sit on a table top or be secured to a base plate. When bolting the unit
down, make sure to secure all standoffs to the mounting surface to prevent circuit board flexing.
An extractor tool is available (part number VL-HDW-203) to separate the PC/104 modules from
the stack.
Related Documents
The following documents available are on the EBX-38 Product Support Web Page:
EBX-38 Programmer’s Reference Manual – provides information on the board’s resources
(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
“Bay Trail”) System-on-Chip
(SoC) Processor
Intel Atom Processor E3800 Product Family Datasheet
Ethernet Controller
Intel I210-IT Gigabit Ethernet
Controller
Intel I210-IT Datasheet
PC/104 Specification
http://www.versalogic.com/products/PC104/index.asp
PC/104-Plus Specification
http://www.versalogic.com/products/PC104/index.asp
EBX-38 Hardware Reference Manual 7
Configuration and Setup
Initial Configuration
The following components are recommended for a typical development system.
VL-EBX-38 single board computer
VL-MM9-xxEBN DDR3L SO-DIMM module (see System RAM)
ATX power supply with motherboard and disk drive connectors
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)
VL-CBR-0702 – SATA data cable
VL-CBR-2022 – ATX to 5V power adapter (or VL-CBR-1203 ATX to 12V power adapter)
(Cat5e cables)
Note: Only one of the listed power adapters can be used.
You will also need a Windows* (or other OS) installation CD/DVD and corresponding drive.
Basic Setup
The following steps outline the procedure for setting up a typical development system. The EBX-
38 should be handled at an ESD workstation or while wearing a grounded antistatic wrist strap.
Before you begin, unpack the EBX-38 and accessories. Verify that you received all the items you
ordered. Inspect the system visually for any damage that may have occurred in shipping. Contact
Support@VersaLogic.com immediately if any items are damaged or missing.
Gather all the peripheral devices you plan to attach to the Viper as well as their interface and
power cables.
It is recommended that you attach standoffs to the board (see Hardware Assembly) to stabilize
the board and make it easier to work with.
Configuration and Setup
EBX-38 Hardware Reference Manual 8
1. Install Memory
Insert the DDR3L DRAM module into the SO-DIMM socket on the top side of the board
and latch it into place. If you have an EBP or ECP SKU of the EBX-38, you may install a
matching DDR3L DRAM module into the SO-DIMM socket on the bottom side of the
board as well.
2. Attach Cables and Peripherals
Plug the VGA cable VL-CBR-1204 into socket J5. Attach the cable to a VGA display.
(Alternatively, you can attach a DisplayPort-enabled display to the Mini DisplayPort
connectors at J3 or J30, or remove jumper V9 and connect J33 for LVDS panel (see
jumper settings for LVDS resolutions).)
Plug the VL-CBR-4005B paddleboard into socket J4.
Plug a USB CD-ROM drive, USB keyboard, and USB mouse into any of the USB
connectors of the CBR-4005B paddleboard.
Plug the SATA data cable VL-CBR-0702 into socket J2 or J36. Attach a hard drive to
the connector on the cable.
Attach the SATA power adapter cable VL-CBR-0401 to the ATX power supply and
SATA drive.
Optionally, attach a LAN cable to either of the Ethernet connectors at J1 or J7 on the
EBX-38.
3. Attach Power
Plug the power adapter cable CBR-2022 into connector J20. Attach the motherboard
connector of the ATX power supply to the adapter.
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
Turn on the ATX power supply and the video monitor. If the system is correctly
configured, a video signal should be present.
6. Select a Boot Drive
During startup, press <CTRL> <B> to display the boot menu. Insert the OS installation
CD in the CD-ROM drive and select to boot from the CD-ROM drive.
7. Install Operating System
Install the operating system according to the instructions provided by the operating
system manufacturer. (See Operating System Installation on page 14.)
Configuration and Setup
EBX-38 Hardware Reference Manual 9
Jumper Blocks
Figure 5. Jumpers Blocks in the As-Shipped Configuration
JUMPER SUMMARY
Table 1: V1 Jumper Summary
RS-422/485 120 Ohm Termination Jumper
Jumper Pins Rx End-point Termination for In Out/Stored
1 – 2 COM 1 RS-422
RS-485 RS-232
(Default)
3 – 4 COM 2 RS-422
RS-485 RS-232
(Default)
5 – 6 COM 3 RS-422
RS-485 RS-232
(Default)
7 – 8 COM 4 RS-422
RS-485 RS-232
(Default)
Table 2: V2 Jumper Summary
V2
Dual or Single Ended LVDS Mode
Jumper Pins
Description
1 - 2 Single LVDS Mode when CFG1 = 0 (Default)
Store on pin 1 Dual LVDS Mode when CFG1 = 1
Configuration and Setup
EBX-38 Hardware Reference Manual 10
Table 3: V3 Jumper Summary
V3
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
V8 Store on pin 1 Save battery when in storage (As shipped)
Configuration and Setup
EBX-38 Hardware Reference Manual 11
Table 4: V6, V7 Jumper Summary
V6. V7
(EDID Select NXP PTN3460I Only)
V6
(CFG3)
V7
(CFG4)
Function
1-2 In
(Low)
1-2 In
(Low)
EDID #0
1-2 In
(Low)
No Jumper
(High)
EDID #1
No Jumper
(High)
1-2 In
(Low)
EDID #2
No Jumper
(High)
No Jumper
(High)
EDID #3
Table 5: V8 Jumper Summary
V8
Battery Saver
Jumper Pins
Description
1 - 2
Battery is in use when jumper is installed
Store on pin 1
Save battery when in storage (As shipped)
Note: EBX-38 is shipped with the V8 jumper configured for the second option. Move the jumper to pins 1
and 2 when the battery is in use.
Table 6: V9 Jumper Summary
V9
DP1 Switch Output Selection Jumper
Jumper Pins Description
1 - 2 DP1 is passed to MiniDP1 J30 Connector
FPGA_DP1_SW_SEL = 0
Store on pin 1 DP1 is passed to LVDS Bridge for LVDS output on J33
FPGA_DP1_SW_SEL = 1
Configuration and Setup
EBX-38 Hardware Reference Manual 12
Table 7: V10 Jumper Summary
Configuration Switches
The figure below shows the as-shipped switch configuration with all switches in the off position.
Figure 6. Location of SW1 Configuration Switch Block
Table 8: Switch Setting Summary
SW1 Switch
Position Description
Position 1
Clears non-volatile RAM and clears resets real-time clock registers (see page 13)
OffNormal operation (default)
OnClears battery backed up non-volatile
Position 2
No Battery Switch (see Integrator’s Note below)
OffA battery is being used (default)
On – A battery is not being used
V10
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.
The pull resistors divide down V_WIDE by 1/3 to reduce the Vgs to less than 8V
on the MOFSET. V5_ATX does not need to be divided down.
9m am 8W1 EM §§§ fig
Configuration and Setup
EBX-38 Hardware Reference Manual 13
SW1 Switch
Position Description
Position 3
Reset BIOS to factory defaults (see page 13)
OffNormal operation (default)
OnResets 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 Not supported. Leave in the Off position.
Position 6
BIOS select
OffPrimary BIOS (default)
OnBackup BIOS
Integrator’s Note:
If a battery is installed (on the CBR-4005B paddleboard or externally using the J8
connector), switch position 2 must be set to the off position. If it is set to on, the battery will
discharge quickly.
If you don’t use a battery, switch position 2 should be set to the on position. Otherwise, boot
times could increase (by as much as 30 seconds in low temperature environments).
RESETTING THE BIOS TO FACTORY DEFAULTS
Reset the BIOS to default settings using the following the instructions:
1.
Power off the EBX-38and set SW1 switch position 3
to the On position (toward the center of the board).
2.
Power on the EBX-38.
3.
After the system boots, power off the EBX-38 and set
the switch back to the Off position (toward the outer
edge of the board).
4.
Power on the EBX-38.
CLEARING RAM AND RTC REGISTERS
Clear RAM and RTC registers (which includes the date/time) using the following the
instructions:
1.
Power off the EBX-38.
2.
Set SW1 switch position 1 to the On position (toward
the center of the board).
3.
Wait at least two seconds and set the switch back to
the Off position (toward the outer edge of the board).
4.
Power on the EBX-38.
EEK-38 Producx Sugyorl Web Page f VersaLogic OS Comymibility Chan HEX-38 Product Supgon Web Page
Configuration and Setup
EBX-38 Hardware Reference Manual 14
BIOS Setup Utility
The EBX-38 permits users to modify the BIOS Setup utility defaults. Refer to the EBX-38 BIOS
Reference Manual (available on the EBX-38 Product Support Web Page for information on
accessing and configuring settings in the BIOS Setup utility. All BIOS menus, submenus, and
configuration options are described in the EBX-38 BIOS Reference Manual.
Operating System Installation
The standard PC architecture used on the EBX-38 makes the installation and use of most of the
standard x86 processor-based operating systems relatively simple. 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
link to the drivers, are available at the EBX-38 Product Support Web Page
Intel Anom Processor E3800 Product Family Datasheet r?
EBX-38 Hardware Reference Manual 15
Board Features
CPU
The EBX-38 uses one of three Intel 4th Generation Atom (formerly “Bay Trail”) System-on-Chip
(SoC) processors:
E3845 (quad core)
E3826 (dual core)
E3815 (single core)
Each core contains a 512 KB L2 cache. These processors support Intel 64-bit instructions, AES
Instructions, Execute Disable Bit, and Virtualization Technology. See the Intel Atom Processor
E3800 Product Family Datasheet for a complete description of the CPU.
Note: If the above link to the datasheet becomes inactive, search the internet for “Intel Bay Trail” or
“E3800” and follow the results to the Intel site and datasheet.
System RAM
The EBX-38 accepts two SO-DIMM memory modules (J9 and J25) with the following
characteristics:
Size Up to 16 GB (8 GB per socket), 1066 MHz or 1333 MHz, CPU dependent
Voltage 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).
I/O Interfaces
The EBX-38 board’s I/O interfaces and their associated connectors are described in later
chapters as follows:
Mass Storage Interfaces (SATA and microSD), beginning on page 24
Multi-purpose I/O (USB, PCIe Mini Card / mSATA, User I/O), beginning on page 26
Serial Ports, beginning on page 35
Video Interfaces (VGA, LVDS, Mini DisplayPort), beginning on page 38
Network Interfaces (Ethernet), beginning on page 44
Expansion Interfaces (SPX, PC/104), beginning on page 47
Board Features
EBX-38 Hardware Reference Manual 16
Power Delivery
MAIN POWER CONNECTOR
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. Make use of all +5 VDC pins and all ground pins
to prevent excess voltage drop.
Note: The +3.3 VDC, +12 VDC and -12 VDC inputs on the power connector are only required for
PC/104-Plus and PC/104 expansion modules that require these voltages.
Board Features
EBX-38 Hardware Reference Manual 17
The table below lists the pinout for the main power connector.
Table 9: J20 Main Power Connector Pinout
Pin
Signal
Description
1 PS_ON# Tied to Signal Ground on board (always enabled, active low)
2 GND Signal Ground (see Note #1)
3 GND Signal Ground (see Note #1)
4 +12V Not used on-board but is passed through to PC/104 and PC/104-Plus
connectors, board signal name is V12_ATX
5 +3.3V Not used on-board but is passed through to PC/104-Plus +3.3V pins,
board signal name is V3P3_ATX
6 +VIN +9V to +15V (+12V Nominal) - board signal name is V_WIDE
7 +5VSTBY Not connected - standby input power is not used
8 +5V +5V - board signal name is V5_ATX
9 +5V +5V - board signal name is V5_ATX
10 -12V Not used on-board but is passed through to PC/104 and PC/104-Plus,
board signal name is V12N_ATX
11 GND Signal Ground (see Note #1)
12 +VIN +9V to +15V (+12V Nominal) - board signal name is V_WIDE
Notes: Note 1: Signal Ground must have low-impedance connection to Earth Ground somewhere in
system for safety and EMI
Note 2: The max current per pin is 6 Amps. This limits the max +5V and +VIN power to 12 Amps.
The 3 GND pins thus limits the total current to 18 Amps
Note 3: V10 jumper placement selects the voltage used for the board;V10[1:2] = 5V, V10[2:3] =
12V
Option 1 (Default)
Input Voltage Power Connector V10 Jumper Setting
Minimum Off Time for
Power Cycling
+5V ±5% V5_ATX (10-pin, 2 x 5) Pin 1 to Pin 2 10 seconds
Option 2
Input Voltage Power Connector V10 Jumper Setting
Minimum Off Time for
Power Cycling
+9V - +15V
(+12V nominal)
V_WIDE (12-pin, 2 x 6) Pin 2 to Pin 3 7 seconds
CABLING
An adapter cable, part number CBR-1203 (12V) or CBR-2022 (5V), is available for connecting
the EBX-38 to an ATX power supply.
Board Features
EBX-38 Hardware Reference Manual 18
POWER DELIVERY CONSIDERATIONS
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.
In addition, the specifications for typical operating current do not include any off-board power
usage that may be fed through the main power connector. Expansion boards and USB devices
plugged into the board will source additional power through the main power connector.
Do not use wire smaller than 22 AWG. Use high quality UL 1007 compliant stranded
wire.
The length of the wire should not exceed 18 inches.
Avoid using any additional connectors in the power delivery system.
The power and ground leads should be twisted together, or as close together as possible
to reduce lead inductance.
A separate conductor must be used for each of the power pins.
All power input pins and all ground pins must be independently connected between the
power source and the power connector.
Use a high quality power supply that can supply a stable voltage while reacting to widely
varying current draws.
Refer to Table 26: PC/104-Plus Connectors Maximum Current on page 49 for information on the
current ratings for the PC/104-Plus connectors.
Board Features
EBX-38 Hardware Reference Manual 19
POWER BUTTON
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).
The input can be connected to ground using the normally open contacts of a pushbutton switch or
a relay, or with a switching transistor (open-collector or open-drain) capable of sinking 3.3 mA
with a voltage drop that is less than 500 mV (there is a 1 k resistor on the EBX-38 pulled up to
3.3 V). Do not add an external pull-up resistor to this signal.
A power button is provided on the CBR-4005B paddleboard. See Figure 24 on page 53 for the
location of the power button on the CBR-4005B paddleboard.
In configurations where a power button is not connected to the board, if the system is put into an
S5 state, power can be restored by turning off the power supply and turning it back on. This
behavior is set by default in the BIOS.
SUPPORTED POWER STATES
This table lists the board’s supported power states.
Table 10: Supported Power States
Power State
Description
S0 (G0) Working
S1 (G1-S1)
All processor caches are flushed, and the CPUs stop executing instructions. Power to
the CPUs and RAM is maintained. Devices that do not indicate they must remain on
may be powered down.
S3 (G1-S3) Commonly referred to as Standby, Sleep, or Suspend-to-RAM. RAM remains powered.
S4 (G1-S4) Hibernation or Suspend-to-Disk. All content of main memory is saved to non-volatile
memory, such as a hard drive, and is powered down.
S5 (G2)
Soft Off. Almost the same as G3 Mechanical Off, except that the power supply still
provides power, at a minimum, to the power button to allow return to S0.
A full reboot is
required. No previous content is retained. Other components may remain powered so
the computer can "wake" on input from the keyboard, clock, modem, LAN, or USB
device.
G3 Mechanical off (ATX supply switch turned off).
Board Features
EBX-38 Hardware Reference Manual 20
BATTERY POWER OPTIONS
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.
Use the battery supplied with the CBR-4005B paddleboard via the User I/O connector (J4).
Use the on-board battery socket (B2).
For custom designs only, a soldered in battery (B1 footprint is under B2) can replace the
battery socket (B2) as the parts are dual-footprinted.
The figure below shows the location and pin orientation of the external battery connector.
Figure 8. Location and Pin Orientation of the External Battery Connector
CABLING
If your application requires a custom cable, the following information will be useful:
EBX-38 Board Connector
Mating Connector
Molex 501331-0207 Molex 501330-0200
Sales@VersuLogic.com
Board Features
EBX-38 Hardware Reference Manual 21
VL-CBR-0203 EXTERNAL BATTERY MODULE
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.
The EBX-38 supplies RTC voltage in S4, S3, and S0 states, but requires an external +2.75 V to
+3.3 V battery to maintain RTC functionality and RTC CMOS RAM when the board is not
powered. The battery connection can be made to any and all of the following:
B2 on-board battery socket per the V8 jumper placed on pins 1-2
J8 external battery connector
J4 user I/O connector
Push-Button Reset
User I/O connector J4 includes an input for a push-button reset switch. Shorting J4, pin 18 to
ground causes the EBX-38 to reboot.
The input can be connected to ground using the normally open contacts of a pushbutton switch or
a relay, or with a switching transistor (open-collector or open-drain) capable of sinking 3.3 mA
with a voltage drop that is less than 500 mV (there is a 1 k resistor on the EBX-38 pulled up to
3.3 V). Do not add an external pull-up resistor to this signal.
Integrator’s Note:
The reset button has a switch de-bounce circuit in the FPGA that requires the button to be held
asserted at least 125 ms (1/8 second) to reset the board. Holding the reset asserted on a
Bay Trail processor does not continue to hold the processor in reset; it only resets on the edge of
the assertion that follows the 125 ms de-bounce time interval).
A reset button is provided on the CBR-4005B paddleboard. See Figure 24 on page 53 for the
location of the reset button on the CBR-4005B paddleboard.
Board Features
EBX-38 Hardware Reference Manual 22
LEDs/Indicators
This table shows the locations of the boards LEDs/indicators.
Figure 10. Locations of the LEDs/Indicators
LED Description Location
D8/D9 PCIe Mini Card 0
LEDs
D23/D24 PCIe Mini Card 1
LEDs
D11
FPGA Debug LED
GRN: On = S0
power is good,
blinks when in S3
sleep state.
YEL: On with
warning or error.
D12
SATA Activity LED
Near SATA connectors
D22
Panel Power Status
LED
Near LVDS connector J33
J1 Integrated RJ45
Ethernet 0 LEDs Left is green (link/activity), Right is yellow (1Gbit
Speed) indicator.
EBX-SS Product Supgort Web Page
Board Features
EBX-38 Hardware Reference Manual 23
LED
Description
Location
J7 Integrated RJ45
Ethernet 1 LEDs Left is green (link/activity), Right is yellow (1Gbit
Speed) indicator.
PROGRAMMABLE LED
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
resistor limits the current when the circuit is turned on. A programmable LED is provided on the
CBR-4005B paddleboard. See Figure 24 on page 53 for the location of the Programmable LED
on the CBR-4005B paddleboard.
For instructions on how to switch the Programmable LED on and off, refer to the EBX-38
Programmer’s Reference Manual (available on the EBX-38 Product Support Web Page)
External Speaker
A miniature 8 speaker can be connected between user I/O connector J4, pin 15 (SPKR#) and
J4, pin 13 (V3P3). A speaker is provided on the CBR-4005B paddleboard. See CBR-4005B
Paddleboard on page 51 for the location of the speaker on the CBR-4005B paddleboard.
EBX-38 Hardware Reference Manual 24
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. Most current ATX power supplies provide SATA
connectors, and many SATA drives provide both types of power connectors. If the power supply
you are using does not provide SATA connectors, adapters are available.
Figure 11. Location of the SATA Ports
Mass Storage Interfaces
EBX-38 Hardware Reference Manual 25
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.
Figure 12. Location of the microSD Socket
EBX-38 Hardware Reference Manual 26
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; one USB2513B and one USB2514B as shown in the EBX-38 Block Diagram. The figure
below shows the location of the USB ports on the baseboard.
This interface can operate using either the Atom processor’s EHCI controller or its xHCI
controller. To use the USB 3.0 Super Speed mode, the xHCI controller must be used. USB
controller selection is set in the BIOS. By default, EHCI is used. Some older operating systems
(such as MS-DOS) may not support xHCI.
Figure 13. Location of the USB Ports
Sal @ Vex s Looianm
Multi-purpose I/O
EBX-38 Hardware Reference Manual 27
Table 11: USB 3.0 J16 Connector Pinout
J16 Pin
Signal Name
Direction
Function
1
+5V
Out
VBUS Voltage (max 900mA)
2
USB-
I/O
USB 2.0 Diff pair negative
3
USB+
I/O
USB 2.0 Diff pair positive
4
Signal Ground
--
5
StdA_SSRX-
In
USB 3.0 Negative Rx Diff Pair
6
StdA_SSRX+
In
USB 3.0 Positive Rx Diff Pair
7
Signal Ground
--
8
StdA_SSTX-
Out
USB 3.0 Negative Tx Diff Pair
9
StdA_SSTX+
Out
USB 3.0 Positive Tx Diff Pair
Note: Shield is Earth-Grounded (4 board holes but only have to Earth-GND one - shield ties them
together).
PCIe Mini Card / mSATA
The sockets in J14 and J29 accept full-height PCI Express Mini Cards or mSATA modules. The
mSATA interface is supported on J14 only. Additionally only two SATA channels are supported
at one time, either J2 and J36 (both SATA connectors), or J2 (SATA connector) and J14
(mSATA).
The PCIe Mini Card interface includes one PCIe x1 lane, one hubbed USB 2.0 channel, and the
SMBus interface. The socket is compatible with plug-in Wi-Fi modems, GPS receivers, Flash
data storage, and other cards for added flexibility. 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 45mm x
6mm pan head Philips nylon screws. These screws are available in quantities of 10 in the VL-
HDW-108 hardware kit from VersaLogic.
Table 12: PCIe Mini Card / mSATA Pinout
J14
Pin
PCIe Mini Card
Signal Name
PCIe Mini Card
Function
mSATA
Signal Name
mSATA
Function
1
WAKE#
Wake
Reserved
Not connected
2
3.3VAUX
3.3V auxiliary source
+3.3V
3.3V source
3
NC
Not connected
Reserved
Not connected
4
GND
Ground
GND
Ground
5 NC Not connected Reserved Not connected
6
1.5V
1.5V power
+1.5V
1.5V power
7
NC
Not connected
Reserved
Not connected
8
NC
Not connected
Reserved
Not connected
9
GND
Ground
GND
Ground
10
NC
Not connected
Reserved
Not connected
11
REFCLK-
Reference clock input
Reserved
Not connected
12
NC
Not connected
Reserved
Not connected
13 REFCLK+ Reference clock input + Reserved Not connected
Multi-purpose I/O
EBX-38 Hardware Reference Manual 28
J14
Pin
PCIe Mini Card
Signal Name
PCIe Mini Card
Function
mSATA
Signal Name
mSATA
Function
14
NC
Not connected
Reserved
Not connected
15
GND
Ground
GND
Ground
16
NC
Not connected
Reserved
Not connected
17
NC
Not connected
Reserved
Not connected
18
GND
Ground
GND
Ground
19 NC Not connected Reserved Not connected
20 W_DISABLE# Wireless disable Reserved Not connected
21
GND
Ground
GND
Ground
22
PERST#
Card reset
Reserved
Not connected
23
PERn0
PCIe receive
+B
Host receiver diff. pair +
24
3.3VAUX
3.3V auxiliary source
+3.3V
3.3V source
25
PERp0
PCIe receive +
-B
Host receiver diff. pair
26
GND
Ground
GND
Ground
27
GND
Ground
GND
Ground
28 1.5V 1.5V power +1.5V 1.5V power
29
GND
Ground
GND
Ground
30
SMB_CLK
SMBus clock
Two Wire I/F
Two wire I/F clock
31
PETn0
PCIe transmit
-A
Host transmitter diff. pair
32
SMB_DATA
SMBus data
Two Wire I/F
Two wire I/F data
33
PETp0
PCIe transmit +
+A
Host transmitter diff. pair +
34
GND
Ground
GND
Ground
35
GND
Ground
GND
Ground
36 USB_D- USB data Reserved Not connected
37
GND
Ground
GND
Ground
38
USB_D+
USB data +
Reserved
Not connected
39
3.3VAUX
3.3V auxiliary source
+3.3V
3.3V source
40
GND
Ground
GND
Ground
41
3.3VAUX
3.3V auxiliary source
+3.3V
3.3V source
42
LED_WWAN#
Wireless WAN LED
Reserved
Not connected
43
GND
GND
GND/NC
GND)
44 LED_WLAN# Wireless LAN LED Reserved Not connected
45 NC Not connected Vendor Not connected
46
LED_WPAN#
Wireless PAN LED
Reserved
Not connected
47
NC
Not connected
Vendor
Not connected
48
1.5V
1.5V power
+1.5V
1.5V power
49
Reserved
Reserved
DA/DSS
Device activity (Note 1)
50
GND
Ground
GND
Ground
51
PRES_DISABLE
2#
PCIe Mini Card vs. mSATA
detection
GND Ground (Note 2)
52
3.3VAUX
3.3V auxiliary source
+3.3V
3.3V source
Notes:
1. This signal is not currently implemented in the FPGA to drive the blue LED activity indicator.
2. Some PCIe modules use this signal as a second Mini Card wireless disable input. On the Viper,
this signal is available for use for mSATA versus PCIe Mini Card detection. There is an option in
BIOS setup for setting the mSATA detection method.
Multi-purpose I/O
EBX-38 Hardware Reference Manual 29
PCIE MINI CARD LEDS
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). This indicator is very important as a warning to NOT hot-plug the Mini Card (otherwise
it might appear it is OK when the board is in a sleep mode but the Mini Card is still powered); as
a result, it is intentionally yellow to indicate “caution”.
Table 13: PCIe Mini Card LED States
LED
Ref Des
State
Description
Green (WWAN)
D8 (Mini0)
D23 (Mini1)
On
WWAN active
Off WWAN inactive
Yellow (WLAN)
D8 (Mini0)
D23 (Mini1)
On
WLAN active
Off
WLAN inactive
Green (WPAN) D9 (Mini0)
D24 (Mini1)
On WPAN active
Off
WPAN inactive
Yellow
(Power On)
D9 (Mini0)
D24 (Mini1)
On
Mini Card Power is On
Off
Mini Card Power is Off
Integrator’s Note:
The 3.3 V power to the Mini Card can be controlled by the FPGA. By default, the power is always
on, but there is a register setting that turns this power off in sleep modes. The Mini Card 1.5 V
power is always turned off in sleep modes.
Figure 14. Location of PCIe Mini Card LEDs
Multi-purpose I/O
EBX-38 Hardware Reference Manual 30
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. Refer to the EBX-38 Programmer’s Reference
Manual for more information on FPGA registers.
Three LEDs (two Ethernet link status LEDs and a programmable LED)
Push-button power switch
Push-button reset switch
Speaker output
This connector uses IEC 61000-4-2-rated TVS components to help protect against ESD damage.
The figure below shows the location and pin orientation of the user I/O connector.
Figure 15. Location and Pin Orientation of User I/O Connector
Multi-purpose I/O
EBX-38 Hardware Reference Manual 31
This table provides the pinout of the user I/O connector.
Table 14: J4 I/O Connector Pinout and Pin Orientation
Pin
Signal
Pin
Signal
1
+5 V (V5_USB01)
2
GND
3
USB0_P
4
USB1_P
5
USB0_N
6
USB1_N
7 +5V (V5_USB23) 8 GND
9 USB2_P 10 USB3_P
11 USB2_N 12 USB3_N
13 +3.3 V (Note 1) 14 GND
15 SPKR# 16 PLED#
17
PWR_BTN#
18
RST_BTN#
19
GND
20
GND
21
Reserved
22
V_BATT
23
Reserved
24
RETURN_BATT
25
GND
26
GND
27
FPGA GPIO1
28
FPGA GPIO2
29
FPGA GPIO3
30
FPGA GPIO4
31 GND 32 GND
33 FPGA GPIO5 34 FPGA GPIO6
35 FPGA GPIO7 36 FPGA GPIO8
37 +3.3 V (
Note 2
) 38 GND
39 ETH0 LED 40 ETH1 LED
Notes:
1. This 3.3 V power goes off in sleep modes. The SPKR# uses this power as
should the PLED# (there is no requirement for PLED# to use this power, but the
CBR-4005 paddleboard does).
2. This 3.3 V power can be turned on or off similar to the 3.3V power to the Mini
Card via the FPGA (can go off in sleep modes or always stay on; by default it
goes off in sleep modes). It is used for the 10 kΩ pullup resistor power on the 8x
GPIOs and usually for the 2x Ethernet LEDs, however, the Ethernet LEDs can
be powered by a 3.3 V power source.
CABLING
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:
EBX-38 Board Connector Mating Connector
Molex 501571-4007 Molex 501189-4010
e VersaAPI Su on Pa
Multi-purpose I/O
EBX-38 Hardware Reference Manual 32
Digital I/O (DIO)
The 20-pin I/O connectors (J21 and J26) incorporate 16 (per connector) Digital I/O (DIO) lines
that are independently configurable as input or output. DIO inputs can be set for normal or
inverted level. DIO outputs can be set to be normal HIGH or LOW state. Any I/O pin can also be
configured to generate an interrupt on a change of state. There are pull-up resistors to +3.3 V on
all DIO lines. The pull-ups implemented on-board are 10k 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.
The figure below shows the location of the digital I/O connectors. Table 15 lists the pin functions
of the digital I/O connectors and how the pins are routed via the VL-CBR-2005A to the VL-
CBR-2004B paddleboard. Refer to page 57 for information on the VL-CBR-2004B paddleboard.
Figure 16. Location and Pin Orientation of Digital I/O Connector
Multi-purpose I/O
EBX-38 Hardware Reference Manual 33
Table 15: J21/J26 I/O Connector Pinout
J21/J26
Pin
Signal
VL-CBR-2004B
Terminal Block
Terminal Block
Pin
1
Digital I/O 1/17
J1
5
2
Digital I/O 2/18
4
3
Digital I/O 3/19
3
4
Digital I/O 4/20
1
5
Ground
2
6
Digital I/O 5/21
J2
5
7
Digital I/O 6/22
4
8
Digital I/O 7/23
2
9
Digital I/O 8/24
1
10
Ground
3
11 Digital I/O 9/25
J3
5
12
Digital I/O 10/26
3
13
Digital I/O 11/27
2
14
Digital I/O 12/28
1
15
Ground
4
16
Digital I/O 13/29
J4
4
17
Digital I/O 14/30
3
18
Digital I/O 15/31
2
19
Digital I/O 16/32
1
20
Ground
5
DIO Guidelines
Consider the following guidelines when using the DIO lines.
VOLTAGE
The DIO lines are 3.3 V Low-voltage TTL (LVTTL) compatible DIOs capable of
sourcing/sinking an absolute maximum of 25 mA of current. Level shifting or current limiting is
necessary when connecting signals with different voltage rails.
CAUTION:
Do not connect the DIO signals to external +5 V devices; doing so will damage the DIO device
and void the warranty.
Multi-purpose I/O
EBX-38 Hardware Reference Manual 34
POWER STATES
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).
Power control during CPU power states on user devices connected to DIO lines is
dependent on the application design. These external devices would likely remain
powered unless a power-down mechanism is designed into the system.
Care must be taken when powered DIO signals are connected to un-powered DIO
signals. Significant voltage and current can be leaked from a powered system to an un-
powered system causing unpredictable results. Current limiting and/or diode isolation
can help.
CABLES
Cabling issues will affect the usable speed of DIO signals.
These are single-ended drivers/receivers.
Cabling crosstalk can be a problem with fast edge rates. The DIOs are slew-rate limited
and have 50 source terminators to minimize crosstalk and reflections.
ANALOG I/O (AIO)
Analog Inputs
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. The converter has a 100 kilo-samples-per-second (ksps) sampling rate, with a 4 μs
acquisition time and per-channel input ranges of 0 to 5V, ±5V, 0 to +10V and ±10V.
Analog Outputs
A Linear Tech LTC2634 D/A device is used to provide four single-ended 12-bit outputs. The
converter has 5 μs per-channel update rate with a 0 to 4.096V output voltage range.
The Analog Output interface connects to a CBR-2004 paddle board via the J32 I/O connector.
This is not considered a hot-plug interface and has no ESD protection.
mu Pm (J13 mum
EBX-38 Hardware Reference Manual 35
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.
Serial Port Connectors
The figure below shows the location and pin orientation of the two serial port connectors.
Figure 17. Location and Pin Orientation of Serial Port Connectors
Serial Ports
EBX-38 Hardware Reference Manual 36
SERIAL PORT CONNECTOR PINOUTS
Table 16: J13 COM1/COM2, J23 COM3/COM4 Connector Pinout
Pin RS-232 Signal RS-422/RS-485 Signal Port
1 RTS1 TXD1_P
COM1 or COM3
2 TXD1# TXD1_N
3 CTS1 RXD1_P
4 RXD1# RXD1_N
5 GND GND
6 RTS2 TXD2_P
COM2 or COM4
7 TXD2# TXD2_N
8 CTS2 RXD2_P
9 RXD2# RXD2_N
10 GND GND
CABLING
An adapter cable, part number CBR-1014, is available for routing the J13 signals to 9-pin D-sub
connectors. This is a 12-inch, Pico-Clasp 10-pin to two 9-pin D-sub connector cable.
If your application requires a custom cable, the following information will be useful:
EBX-38 Board Connector Mating Connector
Molex 501331-1007 Molex 501330-1000
RS-485 MODE LINE DRIVER CONTROL
The transmit line driver can be automatically turned on and off based on data availability in the
UART output FIFO (ADC mode). This mode can be enabled in the BIOS setup utility. The
transmit line driver can alternatively always be enabled (Manual mode) in the BIOS Setup utility.
5 3 7
Serial Ports
EBX-38 Hardware Reference Manual 37
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. The termination resistor should be enabled for an RS-422 or RS-485
endpoint station; it should be disabled for RS-232 and RS-485 non-endpoint receivers. Table 1
contains jumper configuration details.
Figure 18. COM1/COM2/COM3/COM4 End-point Termination Jumpers
EBX-38 Hardware Reference Manual 38
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.
VGA Interface
The VGA port supports resolutions up to 1920 x 1080 at 60 Hz. This connector uses IEC 61000-
4-2-rated TVS components to help protect against ESD damage.
When the EBX-38 board is booted, the BIOS tests for a video monitor attached to the VGA port.
If a monitor is not detected during this test, the VGA signals are disabled.
The figure below shows the location and pin orientation of the J5 VGA video output connector.
Figure 19. VGA Connector Location and Pin Orientation
Video Interfaces
EBX-38 Hardware Reference Manual 39
This table lists the signals of the VGA video output connector.
Table 17: J5 VGA Video Output Pinout
Pin Signal (Function) DB-15 Pin
1 Ground 6
2 RED (Red video) 1
3 Ground 7
4 GREEN (Green video) 2
5 Ground 8
6 BLUE (Blue video) 3
7 Ground 5
8 HSYNC (Horizontal sync) 13
9 Ground 10
10 VSYNC (Vertical sync) 14
11 CRT_SCL (DDC data clock line) 15
12 CRT_SDA (DDC serial data line) 12
CABLING
An adapter cable, part number CBR-1204, is available to translate J5 into a standard 15-pin D-
Sub VGA connector. This is a 12-inch, 12-pin Pico-Clasp to 15-pin VGA cable.
If your application requires a custom cable, the following information will be useful:
EBX-38 Board Connector Mating Connector
Molex 501568-1207 Molex 501330-1200
Video Interfaces
EBX-38 Hardware Reference Manual 40
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. Set the panel resolution
selection jumpers (V6 and V7) to match your display device’s characteristics.
Table 18: LVDS Panel Types and Jumper Configurations
Panel Resolution Jumper Configuration
V2 V3 V6 V7
800x600 IN 1-2 IN IN
1024x768 IN 2-3 IN OUT
1280x800 IN 2-3 OUT IN
1920x1080 OUT 2-3 OUT OUT
Supported Panel
Characteristics
LVDS
Signal Cable
Backlight
Power Cable
V6/V7 Jumper Settings
Single channel
18/24 bit
800 x 600 (SVGA)
VL-CBR-3003 VL-CBR-0601
V6 V7
2 12 1 2 1
Single channel
18/24 bit
1024 x 768 (XGA)
VL-CBR-3002 VL-CBR-0601
V6 V7
2 12 1
Single channel
18/24 bit
1280 x 800 (WXGA)
VL-CBR-3002 VL-CBR-0601
V6 V7
2 1
2 1
Dual channel
16.7M colors
1920 x 1080 (HD 1080)
VL-CBR-3001 –––
V6 V7
2 1
2 1
Integrator’s Note:
Configure the J2, J3, V6, and V7 jumpers before connecting a display panel to the EBX-38. If any
of the configuration jumpers are not properly set for the display device before power is turned on,
no image will appear.
Video Interfaces
EBX-38 Hardware Reference Manual 41
LVDS Panel Displays Tested with the EBX-38
The table below lists the LVDS panel displays tested with the EBX-38.
Table 19: LVDS Panel Displays Tested
Manufacturer Model Number Display Resolution Display Size LVDS
Signal Cable
Sharp LQ121S1LG42 800×600 SVGA 12.1 inches (31 cm) VL-CBR-3003
Sharp LQ150X1LG91 1024x768 XGA 15 inches (38 cm) VL-CBR-3002
Sharp LQ121K1LG52LCD 1280x800 (WXGA) 12.1 inches (31 cm) VL-CBR-3002
LG LM230WF3-SLD1 1920x1080 (HD 1080)
23 inches (58.4 cm) VL-CBR-3001
LVDS Backlight
The table below lists the LVDS backlight pinout information for the EBX-38.
Table 20: LVDS Backlight Pinout
Pin Signal Direction
Relative to
Our Product Description
1
LVDS_BKLT_EN
Output
Backlight Enable for LVDS panel
2
GND
--
Ground
3
LVDS_BLKT_CTRL
Output
Backlight Control for LVDS panel (PWM)
4
V_LVDS_BKLGT
Input
Voltage for LVDS Backlight control
LVDS Cables Available from VersaLogic
Table 21: LVDS Cables Available from VersaLogic
VersaLogic Part Number
Length
Channels
Function
VL-CBR-3001 20 inches 2 30-pin JAE to 30-pin JAE
VL-CBR-3002 20 inches 1 30-pin JAE to 20-pin Hirose
VL-CBR-3003 20 inches 1 30-pin JAE to 20-pin JAE
Video Interfaces
EBX-38 Hardware Reference Manual 42
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 – used for link management and device control; the EDID is read over
this interface
Hot Plug Detect indicates that a cable is plugged in
Connector J3 DisplayPort interface also supports:
Audio signaling (Audio is disabled by default in BIOS Setup so it would need to be
enabled before use.)
DP++ mode allowing connection to an HDMI device through a passive adapter.
“Passive” means that the adapter does not require external power (because it uses the DP
port’s 3.3 V power) and it does not require software drivers.
The figure below shows the locations of the 20-pin Mini DisplayPort connectors. Table 22 lists
the pinout of the J3 Mini DisplayPort0 connector and J30 Mini DisplayPort1 connector.
Figure 20. Location of the Mini DisplayPort Connectors
Video Interfaces
EBX-38 Hardware Reference Manual 43
Table 22: J3/J30 Mini DisplayPort Connector Pinout
Pin
Signal
Pin
Signal
1
GND
2
HOT PLUG DETECT
3
ML_LANE0_P
4
CONFIG 1
5
ML_LANE0_N
6
CONFIG 2
7
GND
8
GND
9
ML_LANE1_P
10
ML_LANE3_P
11
ML_LANE1_N
12
ML_LANE3_N
13
GND
14
GND
15
ML_LANE2_P
16
AUX_CH_P
17
ML_LANE2_N
18
AUX_CH_N
19
RTN
20
DP_POWER
Console Redirection
The EBX-38 can be configured for remote access by redirecting the console to a serial
communications port. The BIOS setup utility and some operating systems (such as MS-DOS) can
use this console for user interaction. The default settings for the redirected console are as
follows:
115,200 baud rate
8 data bits, no parity
1 stop bit
No parity
No flow control
imam U1 mum
EBX-38 Hardware Reference Manual 44
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.
ETHERNET CONNECTORS
The J1/J7 connectors provide access to the Ethernet ports 0 and 1. The connectors use IEC
61000-4-2-rated TVS components to help protect against ESD damage. The figure below shows
the location and pin orientation of the Ethernet connector.
Figure 21. Location for the J1/J7 Ethernet Connectors
Network Interfaces
EBX-38 Hardware Reference Manual 45
Table 23: Ethernet Connector Pinout
J1 and J7 -
(XMRJ45MGL2RA) 10/100 Signals 10/100/1000 Signals
9
+ Auto Switch (can be
either Tx or Rx)
BI_DA+
10
- Auto Switch (can be
either Tx or Rx)
BI_DA-
7
+ Auto Switch (can be
either Tx or Rx)
BI_DB+
5
+ Auto Switch (can be
either Tx or Rx)
BI_DC+
6
- Auto Switch (can be
either Tx or Rx)
BI_DC-
8
- Auto Switch (can be
either Tx or Rx)
BI_DB-
3
+ Auto Switch (can be
either Tx or Rx)
BI_DD+
4
- Auto Switch (can be
either Tx or Rx)
BI_DD-
1
Ground for built in capacitors
2
Common Center Tap for BIAS voltage
11
Green LED Anode
12
Green LED Cathode
13
Yellow LED Anode
14
Yellow LED Cathode
CABLING
Two RJ-45 connector cables MagJacks which are CAT5E performance rated.
Network Interfaces
EBX-38 Hardware Reference Manual 46
ON-BOARD ETHERNET STATUS LEDS
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 24: Ethernet Status LEDs
LED
Ref Des
State
Description
Green (Activity
or link/status)
On left
J1 (Port 0)
J7 (Port 1)
On
Cable connected (pulses with
activity)
Off Cable not connected
Yellow (Activity
or link/status)
On right
J1 (Port 0)
J7 (Port 1)
1Gbit speed
indicator
Speed indicator
10/100
EBX-38 Hardware Reference Manual 47
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#. The +5 V power provided to pin 1 of the SPX connector is protected by a 1
A resettable fuse.
The figure below shows the location of the SPX connector.
Figure 23. J19 SPX Connector Location and Pin Configuration
Expansion Interfaces
EBX-38 Hardware Reference Manual 48
The table below lists the pinout of the SPX connector.
Table 25: SPX Connector Pinout
Pin Signal Function
1
VCC
5V Power (Fused from S0 power in this product)
2
SCLK
SPX Clock
3
GND
Ground
4
MISO
Serial Data input (Master In Slave Out)
5
GND
Ground
6
MOSI
Serial Data output (Master Out Slave In)
7
GND
Ground
8
SS0#
Chip Select 0 (low true)
9
SS1#
Chip Select 1 (low true)
10
SS2#
Chip Select 2 (low true)
11
SS3#
Chip Select 3 (low true)
12
GND
Ground
13
INT#
Interrupt input (low true)
14
VCC
5V Power (Fused from S0 power in this product)
SPI is, in its simplest form, a three wire serial bus. One signal is a clock, driven only by the
permanent master device on-board. The others are Data In and Data Out with respect to the
master. The SPX implementation on the EBX-38 board supports chip selects. The master device
initiates all SPI transactions. A slave device responds when its chip select is asserted and it
receives clock pulses from the master. All four common SPI modes are supported through the use
of clock polarity and clock idle state controls.
The SPI clock is derived from a 33 MHz PCI clock and can be software-configured to operate at
the following frequencies:
8.25 MHz (33 MHz/4)
4.125 MHz (33 MHz/8)
2.0625 MHz (33 MHz/16)
1.03125 MHz (33 MHz/32)
CABLING
Adapter cables, part number CBR-1401(Six inch) or CBR-1402 (Twelve inch), are available.
VERSALOGIC SPX EXPANSION MODULES
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. For more information, contact
VersaLogic at info@VersaLogic.com.
PC/104-Plus Spe ' ' n
Expansion Interfaces
EBX-38 Hardware Reference Manual 49
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.
The following table lists the maximum PC/104-Plus slot current rating on the EBX-38. This is
the aggregate power available to both the PCI and ISA connectors. ISA does not use +3.3V
power, so all of the +3.3 V power is available for the PCI connector.
Table 26: PC/104-Plus Connectors Maximum Current
Voltage
Maximum Current
+5 V
4.0 A
+3.3 V
3.0 A
+12 V
1.0 A
–12 V
0.5 A
ISA BUS (ON PC/104-PLUS AND PC/104 EXPANSION MODULES)
Refer to the ISA sections of the PC/104-Plus Specification for a complete description of this
interface.
The EBX-38 implements the ISA bus on PC/104-Plus and PC/104 expansion modules using an
LPC-to-ISA bridge implemented in the FPGA. This LPC-to-ISA bridge supports all features
except the following:
The ISA bus must not be mastered by an external module. The EBX-38 is always the bus
master. The MASTER signal on pin D17 of J10 is not connected.
The REFRESH output signal on B19 of J10 is not supported; it is pulled up to a high logic
level.
DMA is not supported. The seven DACKx outputs on pins B15, B17, B26, D8, D10, D12,
and D14 on J10 are pulled up to a high logic level. The seven DRQx inputs on pins B6, B16,
B18, D9, D11, D13, and D15 on J10 are not connected. The Terminal Count (TC) output on
pin B27 of J10 is pulled low.
–5.0V power is not provided on J10 pin B5. This pin is not connected.
Most PC/104-Plus (PCI +ISA) or PC/104 (ISA only) expansion modules will work, but be sure to
check the requirements of your PC/104 card against the list above.
ISA I/O SUPPORT
Both 8-bit and 16-bit I/O cycles are supported, but for 16-bit cycles the PC/104 (ISA) module
must be 16-bit capable and must assert IOCS16#.
Expansion Interfaces
EBX-38 Hardware Reference Manual 50
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. The FPGA always blocks
0x2E/0x2F and 0xC00 – 0xC7F for the SCH3114 Index/Data and Runtime Registers.
By default, the four COM ports in the FPGA are enabled and occupy the I/O address ranges of
0x3F8-0x3FF, 0x2F8-0x2FF, 0x3E8-0x3EF, and 0x2E8-0x2EF. The following are the I/O
address ranges available on the ISA bus when the BIOS is configured to factory defaults.
Table 27: Available ISA Bus I/O Ranges
0x0 0x1F 0x43 0x4F 0x93 0x9F 0x3BC 0x3BF
0x22 0x23 0x53 0x60 0xA2 0xA3 0x3E0-0x3FF,
0x26 0x27 0x62 0xA6 0xA7 0x480 0x4CF
0x2A 0x2B 0x64 0xAA – 0xAB 0x4D2 0x4FF
0x32 0x33 0x66 0xAE – 0xAF 0x600 0xBFF
0x36 0x37 0x68 0x70 0xB6 0xB7 0xCD0 0xCF8
0x3A 0x3B 0x78 0x7F 0xBA – 0xBB 0xCFA 0xCFB
0x3E 0x3F 0x90 0x91 0xBE-0x3AF 0xD00 0xFFF
Assuming the COM ports are disabled, the available I/O base addresses for COM ports on the
ISA bus are as follows:
0x200 0x228 0x338
0x208 0x238 0x3E8
0x220 0x2E8 0x3F8
0x2F8
Each COM port in the FPGA that is enabled will use one of these I/O base addresses and, in that
case, that 8 byte I/O range will not be available on the ISA bus. PCI devices may be assigned I/O
space, but that usually occurs at I/O address 0x1000 or higher so as to not conflict with legacy
I/O devices.
ISA MEMORY SUPPORT
The following memory addresses are available on the ISA bus:
0xA0000 0xB7FFF
ISA IRQ SUPPORT
The following IRQs are supported on the ISA bus:
PC/lO4-Plus Spa 'on
Expansion Interfaces
EBX-38 Hardware Reference Manual 51
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.
PCI BUS (ON PC/104-PLUS EXPANSION MODULES)
Refer to the PCI sections of the PC/104-Plus Specification for a complete description of this
interface.
Make sure to correctly configure the PCI slot position jumpers on each PC/104-Plus or PCI-104
module appropriately.
The BIOS automatically allocates I/O, memory, and interrupt resources.
EBX-38 Hardware Reference Manual 52
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.
User \‘0 Salter", Amman ho Spay-3r Pro grammame LED
EBX-38 Hardware Reference Manual 53
CBR-4005B Paddleboard
CBR-4005B Paddleboard
CBR-4005B CONNECTORS AND INDICATORS
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
CBR-4005B Paddleboard
EBX-38 Hardware Reference Manual 54
USER I/O CONNECTOR
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 28: User I/O Connector Pinout
Pin
Signal
Pin
Signal
1
+5 V
2
GND
3
USB1_P
4
USB2_P
5
USB1_N
6
USB2_N
7 +5V 8 GND
9 USB3_P 10 USB4_P
11 USB3_N 12 USB4_N
13 +3.3 V 14 GND
15 SPKR# 16 PLED#
17 PWR_BTN# 18 RST_BTN#
19
GND
20
GND
21
Reserved
22
V_BATT
23
Reserved
24
V_BATT_RETURN
25
GND
26
GND
27
FPGA GPIO1
28
FPGA GPIO2
29
FPGA GPIO3
30
FPGA GPIO4
31 GND 32 GND
33 FPGA GPIO5 34 FPGA GPIO6
35 FPGA GPIO7 36 FPGA GPIO8
37 +3.3 V 38 GND
39 ETH0 LED 40 ETH1 LED
Auxiliary IIO
CBR-4005B Paddleboard
EBX-38 Hardware Reference Manual 55
CABLING
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 Molex 501189-4010
ON-BOARD BATTERY
CAUTION:
To prevent shorting, premature failure or damage to the Lithium battery, do not
place the board on a conductive surface such as metal, black conductive foam
or the outside surface of a metalized ESD protective pouch. The Lithium battery
may explode if mistreated. Do not recharge, disassemble, or dispose of the
battery in fire. Dispose of used batteries promptly.
Nominal battery voltage is 3.0 V. If the voltage drops below 2.7 V, contact the factory for a
replacement. The life expectancy under normal use is approximately five years.
AUXILIARY I/O CONNECTOR
The figure below shows the location and pin orientation of the auxiliary I/O connector.
Figure 26. Location and Pin Orientation of Auxiliary I/O Connector
CBR-4005B Paddleboard
EBX-38 Hardware Reference Manual 56
Table 29: Auxiliary I/O Connector Pinout
Pin
Signal
Pin
Signal
1 Reserved 2 V_BATT
3
Reserved
4
V_BATT_RETURN
5
GND
6
GND
7
FPGA GPIO1
8
FPGA GPIO2
9
FPGA GPIO3
10
FPGA GPIO4
11
GND
12
GND
13 FPGA GPIO5 14 FPGA GPIO6
15 FPGA GPIO7 16 FPGA GPIO8
17 +3.3 V 18 GND
19 Ethernet Port 0 LED 20 Ethernet Port 1 LED
Figure 27. CBR-4005B Dimensions and Mounting Holes
EBX-38 Hardware Reference Manual 57
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. The digital I/O lines are
powered up in the input mode and make an excellent choice for industrial LVTTL interfacing.
All of the I/O pins support +3.3V signaling.
The Digital I/O interface connects to two CBR-2005 (Cable and Paddleboard Assembly) via the
J21 and J26 I/O connectors.
Table 30. Digital I/O Using VL-CBR-2005A 1
Pin
Signal
Description
Pin
Signal
Description
1
DIO1/DIO17
Digital I/O
2
DIO2/DIO18
Digital I/O
3
DIO3/DIO19
Digital I/O
4
DIO4/DIO20
Digital I/O
5
DGND
Digital Signal
Ground
6
DIO5/DIO21
Digital I/O
7
DIO6/DIO22
Digital I/O
8
DIO7/DIO23
Digital I/O
9
DIO8/DIO24
Digital I/O
10
DGND
Digital Signal Ground
11
DIO9/DIO25
Digital I/O
12
DIO10/DIO26
Digital I/O
13
DIO11/DIO27
Digital I/O
14
DIO12/DIO28
Digital I/O
15
DGND
Digital Signal
Ground
16
DIO13/DIO29
Digital I/O
17
DIO14/DIO30
Digital I/O
18
DIO15/DIO31
Digital I/O
19
DIO16/DIO32
Digital I/O
20
DGND
Digital Signal Ground
CBR-2004B Paddleboard
EBX-38 Hardware Reference Manual 58
Table 31. Digital I/O Using VL-CBR-2005A 2
J#-Pin#
CBR-2004B
Signal
EBX-38 Description
J#-Pin#
CBR-2004B
Signal
EBX-38 Description
J1-5 DIO1 Digital I/O Ch. 1 J1-5 DIO1 Digital I/O Ch. 17
J1-4
DIO2 Digital I/O Ch. 2
J1-4
DIO2 Digital I/O Ch. 18
J1-3
DIO3 Digital I/O Ch. 3
J1-3
DIO3 Digital I/O Ch. 19
J1-2
DGND1 Digital Signal Ground
J1-2
DGND1 Digital Signal Ground
J1-1
DIO4 Digital I/O Ch. 4
J1-1
DIO4 Digital I/O Ch. 20
J2-5
DIO5
Digital I/O Ch. 5
J2-5
DIO5
Digital I/O Ch. 21
J2-4
DIO6 Digital I/O Ch. 6
J2-4
DIO6 Digital I/O Ch. 22
J2-3
DGND2 Digital Signal Ground
J2-3
DGND2 Digital Signal Ground
J2-2
DIO7 Digital I/O Ch. 7
J2-2
DIO7 Digital I/O Ch. 23
J2-1
DIO8 Digital I/O Ch. 8
J2-1
DIO8 Digital I/O Ch. 24
J3-5
DIO9
Digital I/O Ch. 9
J3-5
DIO9
Digital I/O Ch. 25
J3-4
DGND3 Digital Signal Ground
J3-4
DGND3 Digital Signal Ground
J3-3
DIO10 Digital I/O Ch. 10
J3-3
DIO10 Digital I/O Ch. 26
J3-2
DIO11 Digital I/O Ch. 11
J3-2
DIO11 Digital I/O Ch. 27
J3-1
DIO12 Digital I/O Ch. 12
J3-1
DIO12 Digital I/O Ch. 28
J4-5 DGND4 Digital Signal Ground J4-5 DGND4 Digital Signal Ground
J4-4
DIO13 Digital I/O Ch. 13
J4-4
DIO13 Digital I/O Ch. 29
J4-3
DIO14 Digital I/O Ch. 14
J4-3
DIO14 Digital I/O Ch. 30
J4-2
DIO15 Digital I/O Ch. 15
J4-2
DIO15 Digital I/O Ch. 31
J4-1
DIO16 Digital I/O Ch. 16
J4-1
DIO16 Digital I/O Ch. 32
CBR-2004B Paddleboard
EBX-38 Hardware Reference Manual 59
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.
A Linear Tech LTC2634 D/A device is used to provide four single-ended 12-bit outputs. The
converter has 5 μs per-channel update rate with a 0 to 4.096V output voltage range.
The Analog Output interface connects to a CBR-2004 paddle board via the J32 I/O connector.
Note: The V6 jumper on the paddleboard needs to be on pins 2-3 (connecting GND3 to GND2) for Analog
I/O use.
Table 32. Analog I/O Using VL-CBR-2004A
Pin
Signal
Description
Pin
Signal
Description
1
ADC_CH1
Analog Input
2
ADC_CH2
Analog Input
3
AGND
Analog Signal Ground
4
AGND
Analog Signal Ground
5
ADC_CH3
Analog Input
6
ADC_CH4
Analog Input
7
AGND
Analog Signal Ground
8
AGND
Analog Signal Ground
9 ADC_CH5 Analog Input 10 ADC_CH6 Analog Input
11
AGND
Analog Signal Ground
12
AGND
Analog Signal Ground
13
ADC_CH7
Analog Input
14
ADC_CH8
Analog Input
15
AGND
Analog Signal Ground
16
AGND
Analog Signal Ground
17
DAC_OUT1
Analog Output
18
DAC_OUT2
Analog Output
19 DAC_OUT3 Analog Output 20 DAC_OUT4 Analog Output
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CBR-2004B Paddleboard
EBX-38 Hardware Reference Manual 60
Figure 28. CBR-2004 Analog I/O Connectors
Figure 29. CBR-2004 Dimensions
EBX-38 Hardware Reference Manual 61
Thermal Considerations
This chapter discusses the following topics related to thermal issues:
Selecting the correct thermal solution for your application (begins below)
EBX-38 thermal characterization (begins on page 65)
Installing the passive (HDW-406 heat sink) and active (HDW-407 fan) thermal solutions
available from VersaLogic (begins on page 61)
Selecting the Correct Thermal Solution for Your Application
This section provides guidelines for the overall system thermal engineering effort.
HEAT PLATE
The heat plate supplied with the Viper is the basis of the thermal solution. The heat plate draws
heat away from the CPU chip as well as other critical components such as the power supply /
management unit (PMIC), the 3.3V Regulator for the board I/O, and the PCIe Switch interfaces.
Other components rely on the ambient air temperature being maintained at or below the
maximum specified 85 ºC.
The heat plate is designed with the assumption that the user’s thermal solution will maintain the
top surface of the heat plate at 90 ºC or less. If that temperature threshold is maintained, the CPU
(and the other noted components) will remain safely within their operating temperature limits.
CAUTION:
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. As stated above, any thermal solution must be capable of keeping the top surface of the
heat place at or below 90 ºC and the air surrounding the components in the assembly at or below
85 ºC.
The heat plate is permanently affixed to the Viper and must not be removed. Removal of the heat
plate voids the product warranty. Attempting to operate the Viper without the heat plate voids the
product warranty and can damage the CPU.
Thermal Considerations
EBX-38 Hardware Reference Manual 62
SYSTEM-LEVEL CONSIDERATIONS
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.
The ambient air surrounding the EBX-38 needs to be maintained at 85 ºC or below. This can
prove to be challenging depending on how and where the EBX-38 is mounted in the end user
system. Standard methods for addressing this requirement include the following:
Provide a typical airflow of 100 linear feet per minute (LFM) / 0.5 linear meters per
second (as described beginning on page 65) within the enclosure
Position the EBX-38 board to allow for convective airflow
Lower the system level temperature requirement as needed
The decision as to which thermal solution to use can be based on several factors including (but
not limited to) the following:
Number of CPU cores in the SoC (single, dual, or quad)
CPU core program utilization
Temperature range within which the EBX-38 will be operated
Air movement (or lack of air movement)
Video processing intensity
Memory access demands
High speed I/O usage (PCIe, USB 3.0, SATA usage)
Most of these factors involve the demands of the user application on the EBX-38 and cannot be
isolated from the overall thermal performance. Due to the interaction of the user application, the
Viper thermal solution, and the overall environment of the end system, thermal performance
cannot be rigidly defined.
CPU THERMAL TRIP POINTS
The CPU cores in the Viper have their own thermal sensors. Coupled with these sensors are
specific reactions to four thermal trip points. The table below describes the four thermal trip
points.
httQ.//www.a\cgu cum/CoreTemg/ httQ.//www.cguid cum/sollwares/hwmonitor html h(t9.//ogenhardwavemonitumrg/ htth/emwikxgedia org/wiki/Lm sensors
Thermal Considerations
EBX-38 Hardware Reference Manual 63
Table 33. CPU Thermal Trip Points
Trip Point
Description
Active (Note 1) The fan is turned on when this temperature is reached
Passive (Note 2)
At this temperature, the CPU cores throttle back to a lower speed. This
reduces the power draw and the temperature.
Critical (Note 3) At this temperature, the operating system typically puts the board into a
sleep or other low-power state.
Maximum core temperature The CPU turns itself off when this temperature is reached. This is a fixed
trip point and cannot be adjusted.
Notes:
1. The default value in the BIOS Setup utility for this trip point is 55 ºC.
2. The default value in the BIOS Setup utility for this trip point is 105 ºC.
3. The default value in the BIOS Setup utility for this trip point is 110 ºC.
These trip points allow maximum CPU operational performance while maintaining the lowest
CPU temperature possible. The long-term reliability of any electronic component is degraded
when it is continually run near its maximum thermal limit. Ideally, the CPU core temperatures
would be kept well below 100 ºC with only brief excursions above.
CPU temperature monitoring programs are available to run under both Windows and Linux. The
table below lists some of these hardware monitoring programs.
Table 34. Temperature Monitoring Programs
Operating System
Program Type
Description
Windows
Core Temperature http://www.alcpu.com/CoreTemp/
Hardware Monitor http://www.cpuid.com/softwares/hwmonitor.html
Open Hardware Monitor http://openhardwaremonitor.org/
Linux lm-sensors http://en.wikipedia.org/wiki/Lm_sensors
Thermal Considerations
EBX-38 Hardware Reference Manual 64
THERMAL SPECIFICATIONS, RESTRICTIONS, AND CONDITIONS
Graphical test data is in the section titled EBX-38 Thermal Characterization, beginning on page
65. Refer to that section for the details behind these specifications. These specifications are the
thermal limits for using the EBX-38 with one of the defined thermal solutions.
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.
Table 35. Absolute Minimum and Maximum Air Temperatures
Board With Heat Plate
With Heat Sink
(HDW-406)
With Heat Sink + Fan
(HDW-413)
VL-EPMe-42EAP
-40 ° to +85 °C
-40 ° to +85 °C
-40 ° to +85 °C
VL-EPMe-42EBP
-40 ° to +85 °C
-40 ° to +85 °C
-40 ° to +85 °C
VL-EPMe-42ECP
-40 ° to +85 °C
-40 ° to +85 °C
-40 ° to +85 °C
OVERALL RESTRICTIONS AND CONDITIONS
Ranges shown assume less than 90% CPU utilization.
Keep the maximum CPU core temperature below 100ºC.
The ambient air surrounding the EBX-38 needs to be maintained at 85 ºC or below. This
includes the space between this CPU board and any board it is stacked on top of it.
Included is the space beneath an installed Mini PCIe expansion board and the installed
SODIMM. A recommended overall air flow of 100 Linear Feet per Minute (LFM) / 0.5
Linear Meters per Second (LMS) addresses this requirement. If this air flow is not
provided, other means to keep the adjacent air at 85 ºC or below must be implemented.
HEAT PLATE ONLY RESTRICTIONS AND CONDITIONS:
The heat plate must be kept below 90 °C. This applies to a heat plate mounted directly to
another surface.
HEAT SINK ONLY CONSIDERATIONS:
At 85°C air temperature and 90% CPU utilization, there will be little if any thermal
margin to a CPU core temperature of 100 °C or the passive trip point (see test data). If
this is the use case, consider adding a fan or other additional air flow.
HEAT SINK WITH FAN CONSIDERATIONS:
The heat sink and fan combination cools the CPU when it is running in high temperature
environments, or when the application software is heavily utilizing the CPU or video
circuitry. The fan assists in cooling the heat sink and provides additional air movement
within the system.
Integrator’s Note:
The ambient air surrounding the EBX-38 needs to be maintained at 85 ºC or below.
Thermal Considerations
EBX-38 Hardware Reference Manual 65
EBX-38 Thermal Characterization
The EBX-38 board underwent the following thermal characterization tests:
Test Scenario 1: Single core EBX-38EAP with passive and active thermal solutions
Test Scenario 2: Dual core EBX-38EBP with passive and active thermal solutions
Test Scenario 3: Quad core EBX-38ECP with passive and active thermal solutions
The table below describes the thermal testing setup for the board.
Table 36. EBX-38 Thermal Testing Setup
Hardware Configuration
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)
One attached DisplayPort device
Two RS-232 ports in loopback configuration
Two active Ethernet ports
Three USB 2.0 ports in loopback configuration
BIOS
IP-1081
Passive thermal trip point setting: 105 ºC
Critical thermal trip point setting: 110 ºC
Operating System
Microsoft Windows* 10 Enterprise
Test Software
Passmark* BurnIn Test v8.1
- CPU utilization ~90%
Intel Thermal Analysis Tool* (TAT) v6.0.1007
- Primarily used to read the CPU core temperature
Test Environment
Thermal chamber
The test results reflect the test environment within the temperature chamber used. This particular
chamber has an airflow of about 0.5 meters per second (~100 linear feet per minute). Thermal
performance can be greatly enhanced by increasing the overall airflow beyond 0.5 meters per
second.
The system power dissipation is primarily dependent on the application program - that is, its use
of computing or I/O resources. The stress levels used in this testing are considered to be at the
top of the range of a typical user’s needs.
Average CPU Core Temp ms , 95 , BS '8 75 , E‘ —Avs Core 55 , 3 Temp (Pas) E 55 , 0 —AVG Core 45 * Temp(Act) 35 25 r‘y—y—fi 15c soc 70C soc 85C 90c AmhlemTemp ('2‘) Average CPU Core Temp 105 95 A35 9 / fl_75 E E65 —AVG Cum Temp (Pas) 3,55 —AVG Core Temp (Act) 45 35 25 25c 50c 70c so: 35: 90c Amblent Temp (c)
Thermal Considerations
EBX-38 Hardware Reference Manual 66
TEST RESULTS
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 30. 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.
Figure 31. EBX-38EBP CPU Core Temperature Relative to Ambient Temperature
core Kemp (c‘) 125 105 85 65 45 25 Average CPU Core Temp —AVG Core Temp (Pas! —AVG Core Te mp (Ad) 70C SUE 85C 9m Amhlenl Temp (c)
Thermal Considerations
EBX-38 Hardware Reference Manual 67
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 32. EBX-38ECP CPU Core Temperature Relative to Ambient Temperature
- hug://www.arcticsilver.com/
Thermal Considerations
EBX-38 Hardware Reference Manual 68
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.
VL-HDW-407 Fan Assembly – mounts to HDW-406 Heat Sink.
INSTALLING THE PASSIVE HEAT SINK
Install the passive heat sink (VL-HDW-406) using these steps:
1. Apply the Arctic Silver Thermal Compound
Apply the thermal compound to the heat plate using the method described on the Arctic
Silver website - http://www.arcticsilver.com/
2. Position the passive heat sink
Using the figure below as a guide, align the six mounting holes of the heat sink with the
heat plate.
3. Secure the passive heat sink to the heat plate
Affix the passive heat sink to the heat plate using six M2.5 pan head screws.
Using a torque screwdriver, tighten the screws to 4.0 inch-pounds.
Figure 33. Installing the Passive Heat Sink
INSTALLING THE HEAT SINK FAN
Install the heat sink fan (VL-HDW-407) using these steps:
1. Position the fan assembly
Thermal Considerations
EBX-38 Hardware Reference Manual 69
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. The CPU fan connector is located between the Mini
DisplayPort connector and the microSD socket (see Figure 2 on page 2).
2. Secure the fan to the heat sink
Affix the heat sink fan using four M3 pan head screws.
Using a torque screwdriver, tighten the screws to 4.0 inch-pounds.
3. Connect power to the fan
Connect the fan’s power cable to the J24 CPU fan connector on the Viper board.
Figure 34. Installing the Heat Sink Fan
EBX-38 Hardware Reference Manual 70
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. If “Extend these displays” is selected, then the
VGA or DP output may be set to a different resolution.
The EBX-38EAP and EBX-38EBP SKUs are currently not speed stepping or throttling
the CPU speed when the device gets hot.
When the xHCI USB Host is enabled (enabling the USB 3.0 super speed), booting from a
DOS USB thumb drive will not work. When necessary to boot DOS from a USB thumb
drive, make sure the BIOS Setup selects the EHCI Host Controller instead.
*** End of document ***

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