artisan RadiSys EPC-26A Anwendungshandbuch
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1. Product Description
The EPC-26A/27 PC/AT-compatible CPU module is an EMC form factor EPC
based on the DX2 and DX4 Intel486 processor. The EPC-26A uses the 50
MHz Intel486 DX2 CPU, while the EPC-27 uses the 100 MHz IntelDX4.
The EPC-26A/27 uses the Pico-Power Redwood chip set, a two-chip set
packaged in a 176-pin TQFP.
This EPC meets stringent safety and low EMI standards (UL-1950). All front
panel accessible ports have filter networks for reduced EMI and increased
ESD protection.
The EPC-26A/27 processor modules contain the following features:
•The EPC-26A contains an Intel DX2 Enhanced processor (208-pin
SQFP package, 3.3V). The EPC-27 is an Intel DX4 processor.
•One 72-pin 3.3V SIMM socket for memory sizes of 4, 8, 16 or 32 MB
•PC/AT compatible keyboard interface, reset switch and run LED
•Standard PC-compatible peripherals
•Time-of-day clock with 256 bytes of battery-backed CMOS RAM and
user-replaceable battery
•One RS-232 9-pin DTE serial port (COM1) and one RJ45 serial port
(COM2)
•Flashable Phoenix BIOS
•EXM expansion interface
•Optional 2 or 4 MB Flash memory and 128 KB SRAM and watchdog
timer
If your EPC-26A/27 contains the optional Flash/SRAM configuration, you will
also receive a File/Utilities diskette containing formatting software and SRAM
drivers. The software is explained in detail in the XFORMAT Software User’s
Manual that accompanies the diskette.
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________________________________________________________________
07-0266-00 June 1995
EPC®-26A/27
Hardware Reference
®
RadiSys Corporation
15025 S.W. Koll Parkway
Beaverton OR 97006
(503) 646-1800
FAX: (503) 646-1850
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EPC-26A/27 Hardware Reference
Page ii
EPC and RadiSys are registered trademarks of RadiSys Corporation. IBM
and PC/AT are trademarks of International Business Machines Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft
Corporation. Intel and Intel486 are trademarks of Intel Corporation.
June 1995
Copyright ©1995 by RadiSys Corporation
All rights reserved.
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EPC-26A/27 Hardware Reference
Page iii
Hardware Warranty
RadiSys Corporation ("RadiSys") warrants the EPC system and component
modules to the original purchaser for two years from the product's shipping
date. If an EPC product fails to operate in compliance with its specification
during this period, RadiSys will, at its option, repair or replace the product at
no charge. The customer is, however, responsible for shipping the product;
RadiSys assumes no responsibility for the product until it is received. This
warranty does not cover repair of products that have been damaged by
abuse, accident, disaster, misuse, or incorrect installation.
RadiSys' limited warranty covers products only as delivered. User
modification, such as the addition of memory arrays or other devices, may
void the warranty, and if the product is damaged during installation of the
modifications, this warranty does not cover repair or replacement.
This warranty in no way warrants suitability of the product for any specific
application.
IN NO EVENT WILL RADISYS BE LIABLE FOR ANY DAMAGES,
INCLUDING LOST PROFITS, LOST SAVINGS, OR OTHER INCIDENTAL
OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
INABILITY TO USE THE PRODUCT EVEN IF RADISYS HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY
CLAIM BY ANY PARTY OTHER THAN THE PURCHASER.
THE ABOVE WARRANTY IS IN LIEU OF ANY AND ALL OTHER WAR-
RANTIES, EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING THE
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE OR USE, TITLE AND NONINFRINGEMENT. Repair or
replacement as provided above shall be the Purchaser's sole and exclusive
remedy and RadiSys' exclusive liability for any breach of warranty.
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EPC-26A/27 Hardware Reference
Page iv
NOTES
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EPC-26A/27 Hardware Reference
Page v
Table of Contents
1. Product Description....................................................................................1
Specifications.............................................................................................2
2. BIOS Configuration......................................................................................3
Introduction.................................................................................................3
Installation..................................................................................................3
Insertion in an EXM Carrier........................................................................3
BIOS Setup Screens..................................................................................4
Main BIOS Setup Menu..............................................................................5
IDE Adapter Sub-Menus ....................................................................6
Boot Sequence Sub-Menu.................................................................8
About Drive Letter Assignment................................................9
Keyboard Features Menu...................................................................11
Advanced Menu .........................................................................................12
Integrated Peripherals Sub-Menu ......................................................14
Memory Shadow Sub-Menu...............................................................14
EXM Menu..................................................................................................16
EXM Menu Entries for EPC-26A/27...................................................17
EXM Menu Entries for Additional EXMs.............................................17
Exit Menu ...................................................................................................18
3. Theory of Operation....................................................................................21
Processor and Coprocessor ......................................................................21
Memory ......................................................................................................21
Memory Expansion.....................................................................................22
Memory Map.......................................................................................22
ROM and ROM Shadowing........................................................................23
Battery........................................................................................................23
Jumpers......................................................................................................24
Video Controllers........................................................................................25
Front Panel LED.........................................................................................25
Optional Flash/SRAM Memory...................................................................25
Watchdog Timer.........................................................................................26
Resetting the EPC......................................................................................27
4. Connectors..................................................................................................29
Serial Ports.................................................................................................29
Keyboard....................................................................................................30
EXM Expansion Connector........................................................................30
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EPC-26A/27 Hardware Reference
Page vi
5. Troubleshooting & Error Messages .........................................................31
Troubleshooting.........................................................................................31
Common Error Messages..........................................................................32
6. Programming Interface..............................................................................39
Registers....................................................................................................39
Configuration Registers...........................................................40
Addressing Registers..............................................................40
Flash Data Access ..................................................................41
SRAM data access ............................................................................41
Battery Low Condition........................................................................41
SRAM Standard Memory Array.................................................................42
7. Support and Service...................................................................................45
In North America........................................................................................45
Technical Support..............................................................................45
Bulletin Board.....................................................................................45
Repair Services..................................................................................46
Warranty Repairs...............................................................................46
Non-Warranty Services......................................................................46
Arranging Service ..............................................................................47
Other Countries .........................................................................................48
Appendix A: Mechanical Dimensions .........................................................1
Appendix B: Chip Set & I/O Map...................................................................1
Appendix C: Interrupts and DMA Channels ................................................1
Interrupts....................................................................................................1
DMA Channels...........................................................................................2
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EPC-26A/27 Hardware Reference
Page 2
11
Specifications
The following table lists the environmental and electrical specifications of the
EPC (with SIMM memory included).
Environmental
Temperature operating 0°to 60°C (* see below)
storage -40°to 85°C
Humidity operating 5 - 95% (non-condensing)
storage 5 - 95% (non-condensing)
Vibration operating .015" Peak to Peak 2.5g (max) 5-2000 Hz
storage .030" Peak to Peak 5g (max) 5-2000 Hz
Shock operating 30g 11 msec duration
storage 50g 11 msec duration
Electrical
Power maximum +5V @ 1.2 A
typical +5V @ 0.8 A
Table 1. EPC Environmental and Electrical Specifications.
* Upper temperature limit degrades 2°C per 1000 ft. elevation. Maximum
elevation 10,000 ft.
NOTE: The EPC-27 requires 200 ft/min airflow for 60°C operation. For
configurations with no airflow, the maximum operating temperature for the
EPC-27 is 43°C.
See Appendix A for mechanical dimensions.
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Page 3
22
2. BIOS Configuration
Introduction
The EPC-26A/27 uses the Phoenix BIOS. This section details the various
menus and sub-menus that are used to configure the system. Your system
may be pre-configured and require very little intervention. This section is
written as though you are encountering each field in sequence and for the first
time.
Installation
Before installing the EPC, unpack and inspect it for shipping damage.
DO NOT REMOVE THE MODULE FROM ITS ANTI-STATIC BAG UNLESS
YOU ARE IN A STATIC-FREE ENVIRONMENT.THE EPC,LIKE MOST
OTHER ELECTRONIC DEVICES,IS SUSCEPTIBLE TO ESD DAMAGE.
ESD DAMAGE IS NOT ALWAYS IMMEDIATELY OBVIOUS,IN THAT IT
CAN CAUSE A PARTIAL BREAKDOWN IN SEMICONDUCTOR DEVICES
THAT MIGHT NOT IMMEDIATELY RESULT IN A FAILURE.
ENSURE THAT THE INSTALLATION PROCESS AS DESCRIBED HEREIN
IS ALSO PERFORMED IN A STATIC-FREE ENVIRONMENT.
Insertion in an EXM Carrier
Insertion of the EPC into an EXM carrier is straightforward. Remove a blank
EXM panel from the carrier (by unscrewing the thumbscrews) and insert the
EPC into the card guides. Firmly press the EPC front panel to ensure that the
module is properly seated in the subplane and secure it with the thumb-
screws.
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