VersaLogic Fox VL-EPM-19 Hardware Reference Manual

REV. 7/13/2017

Fox

Hardware
Reference
Manual

(VL-EPM-19)

DMP Vortex86DX2 SoC-based
SBC with dual Ethernet, Video,
USB, SATA, Counter/Tim ers,
Mini PCIe, microSD, GPIO,
SPX, and PC/104-Plus Interface

WWW.VERSALOGIC.COM

12100 SW Tualatin Road
Tualatin, OR 97062-7341

[phone]

Fax [phone]

Copyright © 2015-2017 VersaLogic Corp. All right s r eser ved.

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.

EPM-19 Hardware Reference Manual ii

Product Release Notes

VersaTech KnowledgeBase

Release 1.01 July 2015 Update Web links
Release 1.0 December 2015 First production release

Technical Support

The EPM-19 support page, at

https://versalogic.com/support/product_support.asp?ProductID=271

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 Version 1.2.x

, contains additional

This is a private page for EPM
directly. It cannot be reached from the VersaLogic homepage.

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 [phone].
VersaLogic support engineers are also available via e-mail at [e-mail]

REPAIR SERVICE

If your product requires service, you must obtain a Returned Material Authorization (RMA)
number by calling [phone].

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

-19 users that can be accessed only be entering this address

.

 A detailed description of the problem
 Steps you have taken to resolve or recreate the problem
 The return shipping address

EPM-19 Hardware Reference Manual iii

Warranty Repair All parts and labor charges are covered, including return shipping



Note:

so can delay the processing of your return.



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 EPM-19.

Non-warranty Repair All non-warranty repairs are subject to diagnosis and labor charges,

Mark the RMA number clearly on the outside of the box before returning. Failure to do

RoHS Compliance

The EPM-19 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 poly­brominated diphenyl ethers (PBDE) flame retardants, in certain electrical and electronic products
sold in the European Union (EU) beginning July 1, 2006.

charges for UPS Ground delivery to United States addresses.

parts charges and return shipping fees. Specify the shipping method
you prefer and provide a purchase order number for invoicing the
repair.

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.

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.

Note:

EPM-19 Hardware Reference Manual iv

MOUNTING SUPPORT

The single board computer must be supported at all four 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.

ARTH GROUND REQUIREMENT

E

All mounting standoffs should be connected to earth ground (chassis ground). This provides
proper grounding for EMI purposes. Figure 1 shows the locations of the board’s mounting holes.
All mounting holes identified in Figure 1 must be connected to earth ground.

Figure 1. Attaching the EPM-19 to Earth Ground

EPM-19 Hardware Reference Manual v

Contents

Introduction ................................................................................................................... 1

Description .......................................................................................................................... 1

Technical Specifications ..................................................................................................... 3

EPM-19 Block Diagram ..................................................................................................... 4

Dimensions and Mounting .................................................................................................. 5

Hardware Assembly ............................................................................................... 5

Related Documents ............................................................................................................. 6

Configuration and Setup ............................................................................................... 7

Initial Configuration ........................................................................................................... 7

Basic Setup ......................................................................................................................... 7

Jumper Blocks .................................................................................................................... 9

Jumpers Blocks in the As-Shipped Configuration................................................. 9

Jumper Summary ................................................................................................. 10

BIOS Setup Program......................................................................................................... 10

CMOS/Non-volatile RAM ................................................................................... 10

Clearing CMOS RAM ......................................................................................... 11

Operating System Installation ........................................................................................... 12

ACPI Version Setting .......................................................................................... 12

Windows XP Considerations ............................................................................... 12

Linux Considerations ........................................................................................... 12

Board Features ............................................................................................................ 13

CPU ................................................................................................................................... 13

DMA Controller .................................................................................................. 13

Watchdog Timers................................................................................................. 13

Real-time Clock ................................................................................................... 13

Vortex86DX2 SoC On-chip Temperature Sensor ............................................... 14

System RAM ..................................................................................................................... 14

I/O Interfaces .................................................................................................................... 14

Power Delivery ................................................................................................................. 15

Main Power Connector ........................................................................................ 15

Cabling ................................................................................................................. 16

Battery Power Options ......................................................................................... 16

VL-CBR-0203 External Battery Module ............................................................. 17

Cabling ................................................................................................................. 18

Operating the Board without a Battery ................................................................ 19

Switches ............................................................................................................................ 20

Push-Button Reset ............................................................................................... 20

LEDs/Indicators ................................................................................................................ 20

Programmable LED ............................................................................................. 21

External Speaker ............................................................................................................... 21

Mass Storage Interfaces ............................................................................................. 22

SATA ................................................................................................................................ 22

EPM-19 Hardware Reference Manual vi

Contents

microSD Socket ................................................................................................................ 23

Multi-purpose I/O ......................................................................................................... 25

USB ................................................................................................................................... 25

PCIe Mini Card / mSATA ................................................................................................ 25

mSATA Activity LED ......................................................................................... 27

Booting from a PCIe Minicard ............................................................................ 27

PCIe Mini Card LEDs ......................................................................................... 28

User I/O Connector ........................................................................................................... 29

Cabling ................................................................................................................. 30

Serial Ports .................................................................................................................. 31

Serial Port Connectors ...................................................................................................... 31

Serial Port Connector Pinouts ............................................................................. 32

Cabling ................................................................................................................. 32

Serial Port Assignment ..................................................................................................... 33

COM3/COM4 Hardware Configuration ........................................................................... 34

Video Interfaces ........................................................................................................... 35

Configuration ....................................................................................................... 35

VGA Interface .................................................................................................................. 36

Cabling ................................................................................................................. 37

LVDS Flat Panel Display Connector ................................................................................ 38

Cabling ................................................................................................................. 39

Compatible LVDS Panel Displays ...................................................................... 39

BIOS Settings for Boot Display Devices .......................................................................... 40

Console Redirection ......................................................................................................... 40

Enabling Synchronous Display Output ............................................................................ 41

Network Interfaces ...................................................................................................... 42

Controller Configuration ..................................................................................... 42

Ethernet Connectors ............................................................................................ 42

Cabling ................................................................................................................. 43

On-Board Ethernet Status LEDs .......................................................................... 44

Off-Board Ethernet Status LEDs ......................................................................... 44

Expansion Interfaces .................................................................................................. 45

SPX™ Expansion Bus ...................................................................................................... 45

Cabling ................................................................................................................. 46

VersaLogic SPX Expansion Modules ................................................................. 46

PC/104 Expansion Bus ..................................................................................................... 46

PC/104-Plus PCI Expansion Interface ................................................................. 47

System Resources and Maps ..................................................................................... 48

CBR-4005B Paddleboard ............................................................................................ 49

CBR-4005B Paddleboard ................................................................................................. 49

CBR-4005B Connectors and Indicators .............................................................. 49

User I/O Connector .............................................................................................. 50

Cabling ................................................................................................................. 51

Auxiliary I/O Connector ...................................................................................... 51

Dimensions and Mounting Holes ........................................................................ 52

EPM-19 Hardware Reference Manual vii

Contents

Appendix A – References.................................................. Error! Book m ar k not defined.

Figures

Figure 1. Attaching the EPM-19 to Earth Ground ............................................................. v

Figure 2. VL- EPM-19 Fox Single Board Computer (Top Side) ....................................... 1

Figure 3. VL- EPM-19 Fox Single Board Computer (Bottom Side) ................................. 2

Figure 4. EPM-19 Block Diagram ..................................................................................... 4

Figure 5. EPM-19 Dimensions and Mounting Holes ......................................................... 5

Figure 6. Jumper Block Locations ..................................................................................... 9

Figure 7. Location of the V3 Clear CMOS Jumper ......................................................... 11

Figure 8. Location and Pin Orientation of the Main Power Connector ........................... 15

Figure 9. Location and Pin Orientation of the External Battery Connector ..................... 17

Figure 10. VL-CBR-0203 Latching Battery Module ....................................................... 17

Figure 11. Location of the V4 Battery Saver Jumper ...................................................... 18

Figure 12. Location of the V2 No Battery Mode Jumper ................................................ 19

Figure 13. Locations of the LEDs/Indicators ................................................................... 20

Figure 14. Location of the SATA Port ............................................................................. 22

Figure 15. Location of the microSD Socket..................................................................... 23

Figure 16. Location of the mSATA Activity LED ........................................................... 27

Figure 17. Location of PCIe Mini Card LEDs ................................................................. 28

Figure 18. Location and Pin Orientation of User I/O Connector ..................................... 29

Figure 19. Location and Pin Orientation of Serial Port Connectors ................................ 31

Figure 20. COM3/COM4 End-point Termination Jumpers ............................................. 34

Figure 21. VGA Connector Location and Pin Configuration .......................................... 36

Figure 22. Location of the LVDS Connector ................................................................... 38

Figure 23. Wiring for a DB9 to DB9 RS-232 Adapter for Console Redirection ............. 40

Figure 24. Location and Pin Orientation for the J3 Ethernet Connector ......................... 42

Figure 25. Location of Ethernet Status LEDs D3 and D8 ................................................ 44

Figure 26. J5 SPX Connector Location and Pin Configuration ....................................... 45

Figure 27. CBR-4005B Connectors ................................................................................. 49

Figure 28. Location and Pin Orientation of the User I/O Connector ............................... 50

Figure 29. Location and Pin Orientation of Auxiliary I/O Connector ............................. 51

Figure 30. CBR-4005B Dimensions and Mounting Holes .............................................. 52

Tables

Table 1: Technical Specifications for all EPM-19 Configurations ..................................... 3

Table 2: Jumper Summary ................................................................................................ 10

Table 3: Memory Configurations of EPM-19 Board Models ........................................... 14

Table 4: J13 Power Connector Pinout .............................................................................. 16

EPM-19 Hardware Reference Manual viii

Contents

Table 5: Expansion Current Limits ................................................................................... 16

Table 6: Battery Saver Jumper Truth Table ...................................................................... 18

Table 7: No Battery Mode Jumper Truth Table ................................................................ 19

Table 8: PCIe Mini Card / mSATA Pinout ....................................................................... 25

Table 9: Primary Boot Device Truth Table ....................................................................... 27

Table 10: PCIe Mini Card LED States .............................................................................. 28

Table 11: J9 I/O Connector Pinout and Pin Orientation ................................................... 30

Table 12: J7 COM1/COM2 Connector Pinout ................................................................. 32

Table 13: J6 COM3/COM4 Connector Pinout ................................................................. 32

Table 14: Recommended Serial Port Settings for Vortex86DX2 BIOS ........................... 33

Table 15: COM3/COM4 Termination Jumpers ................................................................ 34

Table 16: J8 VGA Video Output Pinout ........................................................................... 37

Table 17: J15 LVDS Flat Panel Display Connector Pinout .............................................. 39

Table 18: Compatible LVDS Interface TFT-Technology Flat Panel Displays ................. 39

Table 19: BIOS Settings for Boot Display Devices and Corresponding Resolutions ...... 40

Table 20: Ethernet Connector Pinout ................................................................................ 43

Table 21: On-board Ethernet Status LEDs (D3 and D8) ................................................. 44

Table 22: SPX Connector Pinout ...................................................................................... 46

Table 23: PC/104 ISA I/O, IRQ, and Memory Resources ................................................ 47

Table 24: User I/O Connector Pinout ............................................................................... 50

Table 25: Auxiliary I/O Connector Pinout ........................................................................ 51

EPM-19 Hardware Reference Manual ix

1

Description

The EPM-19 is a feature-packed single board computer designed for OEM control projects
requiring fast processing, with two memory density options and designed-in reliability and
longevity (product lifespan).

Figure 2 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.

Introduction

EPM-19 Hardware Reference Manual 1

Item Description

A

PC/104-Plus (PCI) connector
B PCIe Minicard/mSATA connector K PC/104 (ISA) connector
C Battery L Main power connector
D Ethernet port 0/1 connector M SATA connector
E COM3/COM4 connector N DRAM devices
F COM1/COM2 connector O VGA connector

G User I/O [CBR-4005B mating connector] P SPX connector
H External battery connector Q FPGA device

I Vortex86DX2 SoC

Figure 2. VL- EPM-19 Fox Single Board Computer (Top Side)

Item Description

J PC/104 (ISA) connector

Introduction

Item Description

A microSD socket
B LVDS connector
C DRAM devices

Figure 3. VL- EPM-19 Fox Single Board Computer (Bottom Side)

EPM-19 boards are subjected to 100% 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 SBC.

EPM-19 Hardware Reference Manual 2

Technical Specifications

temperature (Note)

• Video BIOS supports up t o 1024x768 resolut i on with 32-bi t color

limited to 1024x768 (LVDS panel maximum supported resolution)

Video BIOS support for 640x480, 800x480, 800x600, 1024x600, and 1024x768

Vcc sensing; resets when the 5V, 3.3V, 1.8V, 1.5V, 1. 2V , or 1.0V power rails vary by more than
± 10% of their optimal val ues .

Supports SPI and SPX devices. Supports up to two SPX modules, including low cost analog
signals)

bus speed

SPX™ – full compliance

Generated

100 MHz, 50 MHz, 33 MHz, 29.49 MHz, 25 MHz, 14.318 MHz, 8 MHz, 4 MHz, 2 MHz, 1 MHz,

Specifications are typical at 25 °C with 5.0V supply, unless otherwise noted. Specifications are
subject to change without notice.

Table 1: Technical Specifications for all EPM-19 Configurations

Item VL-EPM-19SAK VL-EPM-19SBK VL-EPM-19EAK VL-EPM-19EBK

(Standard Temperature) (Extended Temperature)

Board size 4.250 inches x 3.775 inches

Storage temperature -40 °C to 85 °C

Free air operating

CPU clock 933 MHz 800 MHz

Memory clock 333 MHz 300 MHz

Memory size 512 MB 1 GB 512 MB 1 GB

Idle power 5.3 W 5.3W 5.0 W 5.0 W

Typical power 5.5 W 5.6 W 5.3 W 5.4 W

Max power 5.8 W 5.9 W 5.7 W 5.8 W

Input Voltage +5 VDC ±5%

Introduction

0 °C to + 60 °C -40°C to +85 °C

Analog VGA output

Digital Video output

System Reset

Ethernet interface Two auto-detect 10BaseT/100BaseT X ports
COM1-2 interface RS-232, 16C550 compatible, 115k baud max.
COM3-4 interface RS-232/422/485, 16C550 compati bl e, 460k baud max.

SPI interface

GPIO/Timers

BIOS AMI Vortex86DX2 BIOS

PC/104-Plus (PCI)

bus speed

PC/104 (ISA)

Compatibility

Weight 0.50 lb (0.22 kg)

frequencies

Notes: Derate -1.1°C per 305m (1,000 ft .) above 2,300m (7,500 ft.).

• With VGA driver support s up to 1920x1440. Synchronous display use causes VGA to be

• LVDS video output

• Support for 18-bit or 24-bit single c hannel LV DS flat panel displays

•

and digital modules.
Three 8254-compatible timer/counters (FPGA functions, six muxed with the eight GPIO

33 MHz

8 MHz

• PC/104 – full compl i ance

• Embedded-PCI (PC/104-Plus) – full compli ance, 3.3V signaling

•

32.768 kHz

EPM-19 Hardware Reference Manual 3

EPM-19 Block Diagram

Introduction

Figure 4. EPM-19 Block Diagram

EPM-19 Hardware Reference Manual 4

Dimensions and Mounting

The EPM-19 must be supported at all four mounting points to prevent

not covered under the product warranty.

The EPM-19 complies with the PC/104 standard which provides for specific mounting hole and
PC/104-Plus stack locations as shown in Figure 5.

Introduction

Figure 5. EPM-19 Dimensions and Mounting Holes

(Not to scale. All dimensions in inches.)

CAUTION:

excessive flexing when expansion modules are attached and removed. Flex
damage caused by excessive force on an improperly mounted circuit board is

HARDWARE ASSEMBLY

The EPM-19 mounts on four hardware standoffs using the corner mounting holes. These
standoffs are secured to the underside of the circuit board using pan head screws.

EPM-19 Hardware Reference Manual 5

The entire assembly can sit on a table top or be secured to a base plate. When bolting the unit

http://www.vortex86.com/?p=16

USB 2.0 Hub and 10/100

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-201) to separate the PC/104 modules from

the stack.

Related Documents

The following documents available are on the EPM-19 Product Support Web Page:
 EPM-19 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.

 EPM-19_EBX-18 BIOS Reference Manual – provides information on accessing and

configuring settings in the BIOS Setup utility. All BIOS menus, submenus, and
configuration options are described.

 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:

Introduction

Overview of Vortex86DX2

Ethernet Controller
ILAN9512 Data sheet

PC/104 Specification
PC/104-Plus Specification

http://ww1.microchip.com/downloads/en/DeviceDoc/9512.pdf

http://www.versalogic.com/products/PC104/index.asp

http://www.versalogic.com/products/PC104/index.asp

EPM-19 Hardware Reference Manual 6

2

Initial Configuration

The following components are recommended for a typical development system.

 EPM-19 single board computer
 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.
 VGA Video adapter cable (CBR-1204)

Configuration and Setup

 User I/O cable (CBR-4005) and accompanying paddleboard (CBR-4005B)
 Power adapter cable (CBR-1008)
 VL-CBR-0702 – SATA data cable
 VL-CBR-0401 – ATX to SATA power adapter

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
EPM-19 should be handled at an ESD workstation or while wearing a grounded antistatic wrist
strap.

Before you begin, unpack the EPM
you ordered. Inspect the system visually for any damage that may have occurred in shipping.
Contact [e-mail]

Gather all the peripheral devices you plan to attach to the EPM-19 and their interface and power
cables.

It is recommended that you attach standoffs to the board now to stabilize the board and make it
easier to work with. (Refer to the section titled “Hardware Assembly” on page 5.)

1. Connect Power

-19 and accessories. Verify that you received all the items

immediately if any items are damaged or missing.

EPM-19 Hardware Reference Manual 7

 Plug the power adapter cable CBR-1008 into connector J13. Attach the motherboard

connector of the ATX power supply to the adapter.

To use the Lithium Battery with the EPM
to connecting pin 1 and pin 2. Refer to the section titled “
for more information.

-19, move the jumper on V4 from being stored on pin 1

Battery Saver Jumper” on page 18

Configuration and Setup



If you intend to operate the EPM-19 under Windows XP or Windows XP Embedded, be sure to
use Service Pack 3 (SP3).

2. Attach Cables and Peripherals

 Plug the video adapter cable CBR-1204 into connector J8. Attach the video monitor (VGA

DB15) interface cable to the video adapter.

 Connect the CBR-4005B paddleboard to the EPM-19 using a CBR-4005 cable
 Plug USB keyboard and mouse into any of the available USB ports on the CBR-4005B

paddleboard.

 Plug a USB DVD-ROM drive into any of the available USB ports on the CBR-4005B

paddleboard. To avoid potential device delays and excessive power consumption through
the USB ports, use an external power supply for the USB CD-ROM drive.

 Plug the SATA data cable VL-CBR-0702 into the SATA connector (J10). Attach a SATA

hard drive to the other end of the cable.

 Attach the SATA power adapter cable VL-CBR-0401 to the ATX power supply and SATA

drive.

3. 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 EPM

-19 and peripheral

devices.

4. Power On

 Turn on the ATX power supply and the video monitor. If the system is correctly configured,

a video signal should soon be present.

5. Change BIOS Setup utility settings

 Enter the BIOS Setup utility by pressing <Delete> during the early boot cycle.
 Verify that the desired primary boot device is listed as such. Refer to Table 9 on page 27 for

more information.

 Before saving the BIOS Setup utility settings, insert the Windows (or other OS) installation

disk in the DVD-ROM drive so it will be accessed when the system reboots.

 Press <F10> and write the new parameters to CMOS RAM. The system will reboot.

6. Install an Operating System

 Install the operating system according to the instructions provided by the operating system

manufacturer. (See Operating System Installation.)

Note:

EPM-19 Hardware Reference Manual 8

Jumper Blocks

JUMPERS BLOCKS IN THE AS-SHIPPED CONFIGURATION

Configuration and Setup

Figure 6. Jumper Block Locations

EPM-19 Hardware Reference Manual 9

JUMPER SUMMARY

Out – COM3 End-point termination disabled (default)

• Out – COM4 End point termination disabled (default)

• 2-3 – Clear CMOS RAM

• 2-3 – Battery is installed (default)

• 1-2 – Battery is connected

Configuration and Setup

Table 2: Jumper Summary

Jumper

Block

COM3 Rx End-point termination

V1 [1-2]

V1 [3-4]

V3

V2

V4

• In – COM3 End-point termination enabled

•

COM4 Rx End-point termination

• In – COM4 End-point termination enabled

CMOS RAM Clear

• 1-2 – Normal mode (default)

No Battery Mode

• 1-2 – Battery has been removed

Battery Saver

• 1 only (or jumper is removed) (default)

BIOS Setup Utility

The EPM-19 permits users to modify the BIOS Setup utility defaults. Refer to the
EPM-19_EBX-18 BIOS Reference Manual (available on the EPM-19 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 EPM-19_EBX-18 BIOS

Reference Manual.

Description Reference

Table 15, page 34

Table 15, page 34

Clearing CMOS RAM,
page 11

Operating the Board
without a Battery, page 19

Battery Saver Jumper,
page 18

)

CMOS/NON-VOLATILE RAM

The Vortex86DX2 SoC contains a small amount of CMOS/Non-volatile RAM to store the BIOS
Setup utitlity settings. If you have modified BIOS Setup utility settings and the board fails to
boot, clear the CMOS/Non-volatile RAM to restore the default BIOS settings.

EPM-19 Hardware Reference Manual 10