VersaLogic EPM-4 Reference Manual

Reference
Manual

DOC. REV. 3/16/2009

EPM-4
(Lynx)

AMD ÉlanSC520 processor
module with 10/100 Ethernet,
and PC/104-Plus interface.

EPM-4

AMD ÉlanSC520 processor
module with 10/100 Ethernet,
and PC/104-Plus interface

MEPM4

Product Release Notes

This page includes recent changes or improvements that have been made to this
product. These changes may affect its operation or physical installation in your
application. Please read the following information.

Rev 5 Release

• EPM-4h model release – RoHS extended temperature version.

Rev 4 Release

• PC/104 (ISA) connector keyed to better comply with standard. PC/104 connector soldered instead of
press-fit.

• Physically smaller fuse at F1 with same protection value.

• 3.0V battery.

Rev 3 Release

• EPM-4g model release – Initial RoHS version.

Rev 2 Release

• Initial public release.

Support Page

The EPM-4 Support Page, at http://www.VersaLogic.com/private/lynxsupport.asp contains additional
information and resources for this product including:

• Reference Manual (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

Note: This is a private page for EPM-4 users only. It cannot be reached through our web site. You must
enter this address dire

ctly to find the support page.

Model EPM-4

AMD Élan processor module with 10/100 Ethernet,

and PC/104-Plus interface

REFERENCE MANUAL

VERSALOGIC CORPORATION

WWW.VERSALOGIC.COM

3888 Stewart Road

Eugene, OR 97402

[phone]

Fax [phone]

Contents Copyright ©2009

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.

Table of Contents

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

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

Technical Specifications..................................................................................................... 2

EPM-4 Block Diagram .......................................................................................................3

RoHS-Compliant Version...................................................................................................4

About RoHS...........................................................................................................4

RoHS Compliant Cables........................................................................................4

Technical Support...............................................................................................................5

Repair Service........................................................................................................ 5

Configuration / Operation...............................................................................................7

Overview............................................................................................................................. 7

Electrostatic Discharge ..........................................................................................7

Lithium Battery...................................................................................................... 7

Initial Configuration and Setup...........................................................................................8

Recommended Components..................................................................................8

CMOS Setup / Boot Procedure...........................................................................................9

Console Redirection.......................................................................................................... 10

CMOS Setup / IDE Configuration....................................................................................11

IDE....................................................................................................................... 11

IDE setup .............................................................................................................11

CMOS Setup / Advanced Configuration ..........................................................................12

D0000h 64k page function...................................................................................12

PLD register base I/O .......................................................................................... 12

Force Ethernet 10-BaseT .....................................................................................12

PS/2 Mouse (IRQ12) ...........................................................................................13

LPT1 (0378h).......................................................................................................13

Parallel Port Mode...............................................................................................13

CPU Speed...........................................................................................................13

Cache Mode......................................................................................................... 13

Write Buffer.........................................................................................................13

GP Bus Timings................................................................................................... 13

COM1 (03F8h) RS-232.......................................................................................14

COM2 (02F8h) RS-232.......................................................................................14

COM3 (03E8h) RS-422/485................................................................................14

COM4 (02E8h) RS-422/485................................................................................14

GP Timer 0, GP Timer 1, Watchdog Timer.........................................................14

PCI Interrupt A, B, C, and D ...............................................................................14

Using Custom CMOS Defaults......................................................................................... 15

Reference.......................................................................................................................17

Physical Dimensions.........................................................................................................17

Height Dimensions ..............................................................................................18

Hardware Assembly............................................................................................. 19

Stack Arrangement ..............................................................................................19

External Connectors.......................................................................................................... 20

iii

Table of Contents

Connector Location Diagram............................................................................... 20

Connector Functions and Interface Cables..........................................................21

Jumper Block Locations ...................................................................................................22

Jumper Summary................................................................................................. 23

Power Supply....................................................................................................................24

Power Connectors................................................................................................24

Power Requirements............................................................................................25

Lithium Battery.................................................................................................... 25

CPU...................................................................................................................................26

System RAM.....................................................................................................................26

Memory................................................................................................................26

CMOS RAM.....................................................................................................................26

Clearing CMOS RAM.........................................................................................26

Default CMOS RAM Setup Values.....................................................................26

Real Time Clock............................................................................................................... 26

Setting the Clock.................................................................................................. 26

Battery Backed Static RAM..............................................................................................27

Serial Ports........................................................................................................................27

COM Port Configuration.....................................................................................27

COM3 and COM4 RS-485 Mode Line Driver Control.......................................27

IDE Hard Drive / CompactFlash / CD-ROM Interface ....................................................28

Utility Connector (J7)....................................................................................................... 29

Keyboard/Mouse Interface .................................................................................. 30

Programmable LED............................................................................................. 30

External Speaker..................................................................................................30

Push-Button Reset................................................................................................30

General-Purpose Timer Inputs.............................................................................30

Parallel / Floppy Port ....................................................................................................... 31

Parallel Port Operation.........................................................................................31

Floppy Port Operation .........................................................................................31

Parallel / Floppy Port Pinout................................................................................ 31

Ethernet Interface.............................................................................................................. 32

BIOS Configuration.............................................................................................32

Status LED...........................................................................................................32

Ethernet Connector..............................................................................................32

Watchdog Timer...............................................................................................................33

Expansion Bus ..................................................................................................................34

PC/104-Plus (PCI Bus).......................................................................................34

PC/104 (ISA Bus)................................................................................................ 34

I/O Configuration................................................................................................. 34

Memory and I/O Map .......................................................................................................36

ÉlanSC520 Memory Mapped Configuration Region (MMCR) Registers...........36

Memory Map .......................................................................................................36

I/O Map................................................................................................................ 37

Interrupt Configuration.....................................................................................................38

Special Control Register................................................................................................... 39

Revision Indicator Register...............................................................................................40

Map and Paging Control Register..................................................................................... 41

Appendix A — CBL/CBR-5009 .....................................................................................43

iv

Table of Contents

Appendix B — References ...........................................................................................45

v

Introduction

Description

The EPM-4 (Lynx) is a 486-based processor board in a compact PC/104-Plus format. It is
specifically designed for OEM control projects requiring compact size, high reliability, and long
product lifespan / availability. Its features include:

• AMD ÉlanSC520 microcontroller

• 133 MHz

• 64 MB system RAM

• 10/100 dual-speed Ethernet

• Battery Backed SRAM Option

• Real time clock

• PC/104, PC/104-Plus expansion

interface

• IDE controller

• Two general purpose timer inputs

• Watchdog timer

• Reconfigurable BIOS defaults

• Console redirected to COM port if no

VGA

• CompactFlash Socket

• Four COM ports

• Two RS-232

• Two RS-422/485

• Parallel Port/Floppy Interface

• Vcc sensing reset circuit

• Flash BIOS with OEM enhancements

• Ethernet Remote boot capability

• Single supply (+5V) operation

• Customizing available

• Batteryless operation (possible)

• Extended temperature options (100MHz)

• Transient Voltage Suppressor Devices

rd

party boot code not included

3

1

• Keyboard, mouse, AT motherboard

peripherals

The EPM-4 is a complete computer system in one board. It may be used alone or with expansion
modules. It features a PC/104-Plus expansion interface for fast PCI-based interface to a wide
variety of PC/104 and PC/104-Plus stacking modules. This card is designed to be used primarily
as an Ethernet node processor card.

It is fully compatible with popular operating systems including Windows 95/98/NT/NTE/, CE,
QNX, Linux, RT-Linux, and other Real Time Operating Systems (see the VersaLogic OS

Compatibility Chart).

On-board I/O includes 10/100 Mbit Ethernet, IDE, four COM ports, floppy and two general­purpose timer inputs.

This exceptional processor card was designed from the ground up for OEM applications with
longevity and reliability as the main focus. It is fully supported by the VersaLogic design team.
Both hardware and software (BIOS) customization are available in quantities as low as 25 pieces.
Each board is subjected to 100% functional testing and is backed by a limited two-year warranty.

EPM-4 Reference Manual Introduction – 1

• RoHS-compliant version available

Technical Specifications

Technical Specifications

Specifications are typical at 25°C with 5.0V supply unless otherwise noted.

Board Size:

3.55" x 3.775" (PC/104 standard).

Storage Temperature:

–40° C to 85° C

Operating Temperature:

EPM-4c, g 0° C to +60° C (100 FPM airflow)
EPM-4e, h -40° C to +85° C (free air, extended temperature versions)

Power Requirements: (with keyboard, mouse, and hard drive running DOS)

EPM-4c, g 133 MHz +5V ±5% @ 0.94A
EPM-4e, h 100 MHz +5V ±5% @ 0.84A, extended temperature versions
+3.3V or ±12V may be required by some expansion modules

System Reset:

Vcc sensing, resets below 4.70V typ.
Watchdog timeout

BBSRAM Interface:

2 MB option mapped into high memory

IDE Interface:

Industry standard 2mm 44-pin non-latching style, CompactFlash socket.

LPT/Floppy Interface:

Supports one floppy drive or parallel port.

Ethernet Interface:

Autodetect 10BaseT/100BaseTX based on Intel 82551ER. 12K transmit/receive buffer.

COM1 and COM2 Interface:

RS-232, 16C550 compatible, 115K baud max.

COM3 and COM4 Interface:

RS-422/485, 16C550 compatible, 460K baud max.

Connectors:

Utility: 2mm 50-pin shrouded
IDE: 2mm 44-pin
Floppy/LPT: 2mm 20-pin shrouded
Ethernet: RJ45
Power: 0.1” 10-pin
CompactFlash Type II socket

BIOS: General Software embedded BIOS with OEM enhancements

Field upgradeable with Flash BIOS Upgrade Utility

Bus Speed:

PCI, PC/104-Plus: 33 MHz, Revision 2.0
PC/104: 8 MHz, Revision 2.5

Compatibility:

PC/104 – Fully functional with most PC/104 devices. See the Expansion Bus section for details.
Embedded-PCI (PC/104-Plus) – Full compliance, 3.3V or 5V modules
RoHS: EPM-4g, h – Full compliance

Weight:

EPM-4c, g – 0.117 kg (0.275 lbs)
EPM-4e, h – 0.116 kg (0.255 lbs)

Specifications are subject to change without notice.

Introduction – 2 EPM-4 Reference Manual

EPM-4 Block Diagram

EPM-4 Block Diagram

EPM-4 Reference Manual Introduction – 3

RoHS-Compliant Version

RoHS-Compliant Version

The EPM-4g and EPM-4h are RoHS-compliant. These models are functionally identical to the
non-RoHS version of the boards.

BOUT ROHS

A

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 polybrominated 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.

VersaLogic Corporation is committed to supporting customers with high-quality products and
services meeting the European Union’s RoHS directive.

OHS COMPLIANT CABLES

R

Adapter cables for the EPM-4 are available in RoHS compliant and RoHS noncompliant versions.
Compliance or noncompliance is indicated by the part number prefix. “CBR” indicates RoHS
compliance. “CBL” indicates RoHS noncompliance. For applications that require RoHS
compliance, use only the RoHS compliant (“CBR” version) cables. Availability of RoHS
noncompliant cables may be limited.

Introduction – 4 EPM-4 Reference Manual

Technical Support

If you have problems that this manual can’t help you solve, first visit the EPM-4 Product Support
web page below. If you have further questions, contact VersaLogic for technical support at
[phone]. You can also reach our technical support engineers via e-mail at

[e-mail]

EPAIR SERVICE

R

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

http://www.VersaLogic.com/private/lynxsupport.asp

Technical Support

.

EPM-4 Support Website

Please provide the following inform

ation:

• Your name, the name of your company, and your phone number

• The name of a technician or engineer who we can contact if we have questions

• Quantity of items being returned

• The model and serial number (bar code) of each item.

• A description of the problem

• Steps you have taken to resolve or repeat the problem

• The return shipping address

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. We will need to know what
shipping method you prefer for return back to your facility, and we
will need to secure a purchase order number for invoicing the repair.

Note: Please mark the RMA number clearly on the outside of the box before

returning. Failure to do so can delay the processing of your return.

EPM-4 Reference Manual Introduction – 5

Overview

ELECTROSTATIC DISCHARGE

Warning! Electrostatic discharge (ESD) can damage boards, disk drives, and other

After removing the board from its protective wrapper, place the board on a

Configuration / Operation

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 anti-static wrist strap. Keep all plastic away from the board,
and do not slide the board over any surface.

grounded, static-free surface, component side up. Use an anti-static foam pad if
available.

The board should also be protected during shipment or storage by keeping inside a
closed metallic anti-static envelope.

2

Note: The exterior coating on some metallic anti-static bags is sufficiently conductive to

cause excessive battery drain if the bag comes in contact with the bottom side of
the EPM-4.

ITHIUM BATTERY

L

Warning! 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.

EPM-4 Reference Manual Configuration / Operation – 7

Initial Configuration and Setup

Initial Configuration and Setup

The following list describes the components recommended for setting up a typical development
system.

ECOMMENDED COMPONENTS

R

• EPM-4 Board and cable kit

• ATX Power Supply

• EPM-VID-3 for video support

• Keyboard with PS/2 connector, mouse

• Ethernet Network

• IDE Hard Drive

• Floppy Drive

Configuration / Operation – 8 EPM-4 Reference Manual