BLUE CHIP ELECTRON User manual

ELECTRON

User Manual

ELECTRON

User Manual

Document Part N

°

Document Reference

Document Issue Level

0127-1028.doc

Electron\..\0127-1028.doc

1.0

Manual covers PCBs with the following Issue N

°

1.x

(x is any digit)and above

All rights reserved. No part of this publication may be reproduced, stored in any retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopied, recorded or otherwise, without the prior permission, in writing, from the publisher. For permission in the

UK contact Blue Chip Technology.

Information offered in this manual is believed to be correct at the time of printing. Blue Chip Technology accepts no responsibility for any inaccuracies. The information contained herein is subject to change without notice. There are no express or implied licences granted herein to any intellectual property rights of Blue Chip Technology Ltd.

All trademarks and registered names acknowledged.

Blue Chip Technology Ltd.,

Chowley Oak, Tattenhall,

Chester, Cheshire,

CH3 9EX

Telephone : 01829 772000 Facsimile : 01829 772001 www.bluechiptechnology.co.uk

Amendment History

Issue

Level

0.1

1.0

Issue

Date

18/5/99

26/2/01

Author

PMD

SO

Amendment Details

1st Issue

CPU Support Updated, Disk-on-chip Additions

COMPANY PROFILE

INTRODUCTION.......................................................................................................................................... 2

MANUAL OBJECTIVES ................................................................................................................................ 2

LIMITATIONS OF LIABILITY ...................................................................................................................... 2

PRECAUTIONS .............................................................................................................................................. 2

Electro-Static Discharges ............................................................................................................................ 2

On-Board LITHIUM cell (BT1: CR2032) ..................................................................................................... 3

RELATED PUBLICATIONS........................................................................................................................... 3

TRADEMARKS .............................................................................................................................................. 3

USER GUIDE ................................................................................................................................................ 4

OVERVIEW.................................................................................................................................................... 4

Board Level Features................................................................................................................................... 5 processor ..................................................................................................................................................... 5

Processor Upgrade ...................................................................................................................................... 5

System Memory ............................................................................................................................................ 6

BUS Expansion Slots.................................................................................................................................... 6

Electromagnetic Compatibility..................................................................................................................... 6

SPECIFICATION ............................................................................................................................................ 7

INSTALLATION ........................................................................................................................................... 8

CPU INSTALLATION .................................................................................................................................. 8

MEMORY INSTALLATION...................................................................................................................... 10

Back panel connecTORS ............................................................................................................................ 14 on-board connectORS ................................................................................................................................ 15

ECP/EPP Parallel PORT P6 (26 way header) ............................................................................................ 18

Bus Connectors .......................................................................................................................................... 22

INTEL I740 AGP GRAPHICS CONTROLLER ............................................................................................ 26

Resolutions supported ................................................................................................................................ 26

BIOS ............................................................................................................................................................. 27

Setup Utility............................................................................................................................................... 27

SOFTWARE DESCRIPTION ..................................................................................................................... 29

BIOS SETUP ................................................................................................................................................. 29

MAIN Menu ............................................................................................................................................... 29 advanced Hard Disk Features .................................................................................................................... 29 advanced Menu.......................................................................................................................................... 30

Power menu ............................................................................................................................................... 30

BIOS EXTENSIONS SOFTWARE INTERFACE.......................................................................................... 31

Accessing Int 50h Functions....................................................................................................................... 31

Int 50h Function Definitions ...................................................................................................................... 31

DISK-ON-CHIP SUPPORT ........................................................................................................................... 33

Installing the Disk-On-Chip ....................................................................................................................... 33

Configuring the Disk-On-Chip as the Boot device ...................................................................................... 33

Configuring the Disk-On-Chip as the first drive ......................................................................................... 34

APPENDICES.............................................................................................................................................. 35

ADDRESS MAPS.......................................................................................................................................... 35

Memory Map.............................................................................................................................................. 35

I/O MAP .................................................................................................................................................... 35

PCI Configuration Space Map ................................................................................................................... 36

Interrupts & DMA Channels ...................................................................................................................... 37

BIOS POST CODES, ERRor messages and beepcodes ............................................................................... 38

Blue Chip Technology Ltd.

0127-1028 Page 1

COMPANY PROFILE

C

OMPANY

P

ROFILE

Blue Chip Technology Ltd is the leading specialist PC product manufacturer in UK/Europe.

Blue Chip Technology Ltd provides innovation with quality design and manufacturing from a single source.

Based in the North West of England, our purpose built complex contains one of the most advanced research and development facility, engineering workshop and production lines.

Specialising in the provision of industrial computing and electronic solutions for a wide range of UK and

European organisations, Blue Chip Technology Ltd has one of the UK's largest portfolios of industrial PCs, peripherals and data acquisition cards. This extensive range of products, coupled with our experience and expertise, enables Blue Chip Technology Ltd to offer an industrial processing solution for any application.

The ELECTRON Single Board PC is the latest addition to our portfolio, providing a cost effective product development and volume production tool for OEMs.

A unique customisation and specialised system integration service is also available, delivering innovative solutions to customers problems. The company's success and reputation in this area has led to a number of large design and manufacturing projects for companies such as BNFL, Aston Martin, JaguarSport and

British Gas.

British Standards Institute approval (BS EN ISO9001) means that all of Blue Chip Technology Ltd’s design and manufacturing procedures are strictly controlled, ensuring the highest levels of quality, reliability and performance.

Blue Chip Technology are also committed to the single European market and continue to invest in the latest technology and skills to provide high performance computer and electronic solutions for a world-wide customer base.


0127-1028 Page 2

ELECTRON User Manual INTRODUCTION

INTRODUCTION

M

ANUAL

O

BJECTIVES

This manual describes in detail the Blue Chip Technology ELECTRON Single Board processor card.

We have tried to include as much information as possible but we have not duplicated information that is provided in the standard IBM Technical References, unless it proved to be necessary to aid in the understanding of the ELECTRON Single Board PC.

The manual is divided into logical sections and includes a User Guide which will help non-technical users get the unit up and running. A Troubleshooting Guide is also included to help should things go wrong.

We strongly recommend that you study this manual carefully before attempting to interface with

ELECTRON or change the standard configurations. Whilst all the necessary information is available in this manual we would recommend that unless you are confident, you contact your supplier for guidance.

Please be aware that it is possible to create configurations within the CMOS RAM that make booting impossible. If this should happen, clear the CMOS settings, (see the description of the Jumper Settings for details).

If you have any suggestions or find any errors concerning this manual and want to inform us of these, please contact our Customer Support department with the relevant details.

L

IMITATIONS OF

L

IABILITY

In no event shall Blue Chip Technology be held liable for any loss, expenses or damages of any kind whatsoever, whether direct, indirect, incidental or consequential, arising from the design or use of this product or the support materials supplied with this product. If this product proves to be defective, Blue Chip

Technology is only obliged to replace or refund the purchase price at Blue Chip Technology's discretion according to their Terms and Conditions of Sale.

P

RECAUTIONS

It is imperative that precautions are taken to avoid electro-static discharges, or any maltreatment of the onboard battery.

ELECTRO-STATIC DISCHARGES

The devices on this card can be totally destroyed by static electricity. Ensure that you take necessary static precautions, ideally wear an approved wrist strap or touch a suitable ground to discharge any static build up. This should be repeated if the handling is for any length of time.

When carrying the board around, please place it into the anti-static bag in which it came. This will prevent any static electricity build up. Do not use the black conductive type of anti-static bag as these will discharge the on-board battery.


0127-1028 Page 2

ELECTRON User Manual INTRODUCTION

ON-BOARD LITHIUM CELL (BT1: CR2032)

This board is fitted with a Lithium cell( BT1). Great care should be taken with this type of cell. Under

NO circumstances should :

• °

C

If the battery is mistreated in any way there is a very real possibility of fire, explosion, and personal harm.

R

ELATED

P

UBLICATIONS

The following publications will provide useful information related to the Standard Personal Computer and can be used in conjunction with this manual.

1987.

T

RADEMARKS

IBM, PC, AT and PS/2 are trademarks of International Business Machines Corporation (IBM).

Intel is a registered trademark of the Intel Corporation.

All 80x86 and Pentium processors are registered trademarks of Intel Corporation.

MSDOS and WINDOWS are registered trademarks of the Microsoft Corporation.


0127-1028 Page 3

ELECTRON U SER M ANUAL U SER G UIDE

USER GUIDE

O

VERVIEW

The Blue Chip Technology ELECTRON Single Board PC sets new standards for integration of the latest advances in processor, graphics, memory, and I/O technologies. The ELECTRON complies with the PICMG form factor providing ISA and PCI bus interfaces on a single PC/AT plug-in card. The PICMG single board

PC is an ideal platform for the increasing requirements of today's and tomorrow's embedded applications.

This flexible PICMG design will accept Pentium II



and Pentium III



processors operating at 233 - 700

MHz as well as the SECC (slot 1) Celeron



processors. These Slot 1 processors are supported in a flush mounting Slot 1 connector designed to reduce the overall board dimensions and thereby maximising the slot availability. The Intel 440BX chipset supports 100MHz front side bus (FSB) which provides increased performance over traditional 66MHz bus speeds The memory sub-system is designed to support up to

256MB of unbuffered SDRAM in standard 168-pin DIMM sockets. The memory modules must be PC100 compliant in order to operate at the increased 100MHz FSB. Non PC100 should only be operated at 66MHz

FSB.

The ELECTRON single board PC uses the Intel i740 AGP controller on board to provide outstanding graphics performance and increased integration over other single board PC designs. The Electron supports

AGPx2 (133MHz) data rates and up to 8Mbytes of SGRAM.

The ELECTRON provides PCI Bus Mastering IDE DMA Mode2 controller with two high performance

Enhanced IDE interfaces allowing up to four IDE devices (such as hard drives, CD-ROM readers, etc.)

UltraDMA/33 PIO Mode 3 & 4 are also supported.

An on Board PCI Ultra SCSI II controller (16 bit single ended) is fitted on board using the Industry standard

Adaptec AIC7880. This produces SCSI data rates of up to 40MB/s, and provides expansion for up to sixteen devices.

Networking capability is provided bt an on board PCI based 100/10 Base T ethernet controller. This device can auto-negotiate network speeds and comes complete with drivers for most network environments

Two USB ports provide easy IO expansion to USB Specification Rev 1.0 compliant devices.

A 16 bit quality Sound Blaster compatible audio device is available on board. This provides for mono microphone input, and stereo line in and line out. The codec is Soundblaster



compatible.

The SMC 37C675 Enhanced Super I/O controller integrates the standard PC I/O functions: floppy interface, two FIFO serial ports, one EPP/ECP capable parallel port, keyboard and mouse (PS/2) controller.

The ELECTRON also provides for driving up to four external PCI local bus non bridged slots. These provide a high bandwidth data path for data-movement intensive functions such as frame grabbing or networking. Larger numbers of PCI slots can be supported through PCI bridged backplanes. The

ELECTRON provides a buffered ISA bus. This permits up to twenty ISA slots to be driven to complete the

I/O capability. The ELECTRON should only be used in PICMG back-planes. ISA only back-planes are not recommended for use with ELECTRON as power should be drawn from both the PCI and ISA connectors of the PICMG connectors.

In addition to the superior hardware capabilities, a full set of software drivers and utilities are available to allow advanced operating systems such as Windows™ 95/ 98 to take full advantage of the hardware capabilities. Features such as bus mastering and UDMA33 EIDE, Windows™ 95-ready Plug and Play,

Advanced Power Management (APM) are available for the ELECTRON.


0127-1028 Page 4


BOARD LEVEL FEATURES

•

700MHz operation and above

On-board jumperless CPU voltage regulator

Intel 440BX AGPSet chipset:

824440BX North Bridge

PIIX4E South Bridge

128KB or 512 KB PipeLine Burst Level 2 cache provided on the Celeron/Pentium II/III module.

•

•

Power Management

ISA PnP extensions

Y2K compatible

Two DIMM sockets providing up to 256 MByte of unbuffered SDRAM

Intel i740 AGP graphics controller with:

4/8 MByte SGRAM

Supports resolution upto 1600 x 1200 at 8bpp

Adaptec PCI Ultra SCSI II adapter with on-board termination

•

ESS 1869 16 bit stereo audio codec

PICMG compliant PCI and ISA expansion buses

SMC 37C675 I/O controller providing:

Dual floppy interface

Dual 16C550 RS-232/422/485 serial interfaces

EPP/ECP bi-directional parallel interface

•

PS/2 mouse and keyboard

Real-time clock with on-board battery

Solid State Disk support for M-Systems Disk on Chip with 2- 288MB capacity System monitoring of fans, system temperature and critical supply voltages are provided using the National

•

Semiconductor LM79 hardware monitor.

On-board status LEDs indicate POST , supplies status, network and disk activity

Drive for up to 20 ISA and 4 PCI expansion slots

PROCESSOR

The ELECTRON single board PC is designed to operate with Pentium II/III Processors running at various voltages. An on-board voltage regulator circuit provides the required voltage for the processor core and automatically sets the voltage level to match the processor installed. No links or user intervention is required.

The Pentium II processor maintains full backward compatibility with the 8086, 80286, i386



, Intel486

 and Pentium



processors. It supports both read and write burst mode bus cycles, and includes L1 and L2 caches on the slot module. Also integrated into the Pentium II/III processor is an advanced numeric coprocessor which significantly increases the speed of floating point operations, whilst maintaining backward compatibility with i486DX math co-processor and complying to ANSI/IEEE standard 754-1985.

PROCESSOR UPGRADE

The ELECTRON single board PC has a 242 SECC connector (Slot 1) that provides users with a processor upgrade path. Future, faster, lower power processors being developed for use with Slot 1 can provide performance beyond that delivered by the originally installed Pentium II/III Processor. The ELECTRON will support CPUs from 233- 700MHz and beyond.


0127-1028 Page 5


SYSTEM MEMORY

The ELECTRON single board PC provides two 168-pin DIMM sites for memory expansion. The sockets support 8, 16, 32, 64, 128MB unbuffered SDRAM modules giving a current maximum of upto 256MB of system memory. Minimum memory size is 8 MB. Memory timing requires PC100 compliant SDRAM modules when used with a 100MHz FSB CPU. There are no jumper settings required for the memory size, which is automatically detected by the system BIOS.

BUS EXPANSION SLOTS

The ELECTRON is designed for use in a passive backplane providing expansion slots for add-in cards.

There may be up to 20 ISA bus expansion connectors and four PCI expansion connectors. One slot is shared by both types of connector - this is reserved for the ELECTRON processor card. All PCI expansion slots accept PCI bus master cards, and fully support the PCI specification version 2.1.

PCI 3.3 VOLT CAPABILITIES

Support for 3.3 Volts to the PCI connectors requires a power supply with a 3.3V DC output. The

PICMG power connector definition has 3 pins reserved for 3.3V. The ELECTRON on-board voltage regulator only provides 3.3V to the onboard devices and is not available to supply 3.3V PCI expansion boards. 3.3 Volt PCI boards require a 3.3Volt external PSU such as an ATX supply.

ELECTROMAGNETIC COMPATIBILITY

This product meets the requirements of the European EMC Directive (89/336/EEC) and is eligible to bear the CE mark.

It has been assessed operating in a Blue Chip Technology ICON industrial PC. However, because the board can be installed in a variety of computers, certain conditions have to be applied to ensure that the compatibility is maintained. Subject to those conditions, it meets the requirements for an industrial environment (Class A product).

industrial environment.

regarding earthing and the installation of boards.

ensure good metal-to-metal (i.e. earth) contact.

cabling to the board is totally screened, and that the screen of the cable connects to the metal end bracket of the board and hence to earth. It is recommended that round screened cables with a braided wire screen are used in preference to those with a foil screen and drain wire. Use metal connector shells which connect around the full circumference of the screen: they are far superior to those which earth the screen by a simple “pig-tail”.

into the board. Similarly, it will affect the compatibility of the complete system. A fully compatible keyboard must be used otherwise the complete system could be degraded. The keyboard itself may radiate or behave as if keys are pressed when subject to interference. Under these circumstances it may be beneficial to add a ferrite clamp on the keyboard lead as close as possible to the connector. A suitable type is the Chomerics type H8FE-1004-AS.

cable.


0127-1028 Page 6


Failure to observe these recommendations may invalidate the EMC compliance.

Warning

This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

S

PECIFICATION

ELECTRON Power +5 V ± 5%

Requirement +12 V ± 5%

+3.3 V ± 5%



-5 V ± 5%



Not required for board operation.

-12 V ± 5%



Typical System

Consumption

Temperature

35 Watts (5V) Pentium II 450, 128 MB SDRAM,

<1 Watt (12V) 3½" FDD, 8GB HDD

Non-Operating -40

°

C to +70

°

C

Operating +0

°

C to +55

°

C

(min. airflow of 200 lpm)

EMC Emissions

Immunity

EN55022 (A)

EN50082-1 in a Blue Chip ICON Industrial PC Chassis

MTBF

Dimensions

Calculated

Board only

72,000 Hours

338 x 122 mm

Power Consumption figures given are for a typical configuration.

This information is preliminary and is provided only as a guide to calculating approximate total system power usage when additional resources are added.


0127-1028 Page 7

ELECTRON User Manual INSTALLATION

INSTALLATION

Electro-Static Discharge

Your Single Board Computer is susceptible to damage by electrostatic discharges. In order to avoid damage, you should work at an anti-static bench and observe normal anti-static precautions. Wear an anti-static wrist strap connected to an earth point before opening any packaging.

Where a wrist strap is not available, discharge any static charge you may have built-up by touching an earth point. Avoid any further movement which could build up another static charge. Touch an earth point from time to time to avoid further build-up, and remove the items from their anti-static bags only when required.

CPU INSTALLATION

The ELECTRON board supports a single Slot 1 Celeron or Pentium II/III processor. The processor connects to the board using a 242 pin right angled Slot 1 connector.

Before installing the Pentium II processor, the SDRAM modules should be removed. The CPU fan and/or heatsink assembly must be fitted to the processor prior to installation onto the Electron board. The processor should then be located on the white support bracket and then carefully inserted into the Slot 1 connector. Avoid squeezing against any components mounted on the lower edge of the board. The processor is fully located when the two retaining clips on the processor module click and lock into the retaining holes of the white support bracket.

To remove the processor press the retaining locks on the processor and simultaneously remove the processor.


0127-1028 Page 8


The Electron supports the following processors: (Future CPUs will also be supported)

Processor Type CPU Speed

(MHz)

Pentium III 233

266

300

333

350

400

450

500

Celeron

300

300A

333

366

400

433

466

500

533

550

600

650

700

750

800

850

266

Host Bus Speed

(MHz)

66

66

66

66

100

100

100

100

100

100

100

100

100

100

100

66

66

66

66

66

66

66

66

66

66

0

128

128

128

128

128

128

128

128

256

256

256

256

256

256

256

0

Cache Size

(Kbyte)

256

356

256

256

256

256

256

256


0127-1028 Page 9


MEMORY INSTALLATION

The ELECTRON supports two 168 pin SDRAM DIMMs providing upto 256MB of unbuffered SDRAM.

Modules are available in 8,16,32,64 and 128MB to both PC66 and PC100 specification. The ELECTRON supports both PC memory specifications but the PC100 modules must be used when running 100MHz FSB processors. When running a 66MHz FSB CPU PC66 or PC100 modules may be installed. All SDRAMs must be 3.3Volt, 5Volt modules are not supported.

JUMPER SETTINGS

The ELECTRON has a number of jumpers to allow the user to configure the board to suit specific applications.

The functions of these jumpers is listed below:

J1: CMOS Clearing link:

This jumper is used to clear the contents of the battery backed CMOS memory. This memory is used to retain the system settings such as drive information, boot sequence and certain peripheral device information.

J1

CLEAR

CMOS

MEMORY

CONTENTS

CLR NORM

J1

NORMAL

OPERATING

POSITION

CLR NORM

J2: SCSI Termination power:

This jumper is used to select the power source for the on board SCSI termination. It may be supplied either from the CPU board or from the SCSI bus.

NO JUMPER

SCSI TERMINATION

POWER SUPPLIED BY SCSI

BUS

J2

TPWR

JUMPER FITTED

SCSI TERMINATION

POWER SUPPLIED

BY THE ELECTRON

CPU BOARD

J2

TPWR


0127-1028 Page 10


J3: Half/full duplex:

This jumper is used in conjunction with jumper J5. It is used to select between a half Duplex

RS485 operation on the second on board serial port. When jumper J5 is set to1/2, the J3 jumper should be installed in order to select ½ duplex RS485 operation on COM2. When jumper J5 is set to F, J3 jumper should be removed, thereby selecting RS485 full duplex operation on COM2. When J5 is set to 232 i.e. RS232 on COM2, the J3 jumper should be removed.

NO JUMPER

FULL DUPLEX

SELECTED ON SECOND

SERIAL PORT

(J5 SET TO F)

J3

JUMPER FITTED

HALF DUPLEX

SELECTED ON

SECOND SERIAL PORT

(J5 SET TO 1/2)

J3

J5: RS232/RS485 Full and Half Duplex:

This jumper is used to select between RS232, RS485 full duplex and RS485 half duplex on the second serial port. It is used in conjunction with J3 in order to select between full and half duplex.( see above)


0127-1028 Page 11

ELECTRON User Manual

J5

RS232 SIGNALLING


SERIAL PORT

(J3 NOT FITTED)

INSTALLATION

232

J5 1/2

232

HALF DUPLEX

SELECTED ON

SECOND SERIAL PORT

(J3 FITTED)

J5

232

1/2

FULL DUPLEX


SERIAL PORT

(J3 NOT FITTED)

J5 1/2


0127-1028 Page 12


J4: CPU frequency selector

This four position jumper is used to select the CPU internal frequency. The jumpers set the ratio of the CPU front side bus (FSB)to CPU internal frequency. The FSB is automatically determined by the ELECTRON and there are no user jumper settings for this values. The possible FSB frequencies are 66MHz and 100MHz. Given below are the current supported frequency settings

FSB/CPU

Ratio

1 / 2

1 / 2

1 / 4

1 / 5

2 / 7

2 / 9

CPU Type/speed

FSB: 66MHz, CPU 133MHz












J4 setting

J4

4-1

J4

4-1

J4

4-1

J4

4-1

J4

4-1

J4

4-1

Note:- Later Intel CPU's has the frequencey auto selected, it is recommended that J4 is set to Auto detect the

CPU frequency. To do this remove all the jumper links from J4.


0127-1028 Page 13


Connectors

There are three sets of connectors incorporated on the ELECTRON PC board. These provide connectivity to standard external peripherals available through the back panel connectors (network, serial ports, monitor, keyboard, etc.), in-chassis peripherals ( floppy disk, EIDE, etc.), and bus devices i.e. ISA and PCI.

BACK PANEL CONNECTORS

The back panel provides external access to the UTP Ethernet, VGA, PS/2, keyboard/mouse, and the first serial communications port interfaces. All the connectors follow the industry standard. The diagram shows the general location of the connectors.

UTP 10/100 Base T

Ethernet (P21)

VGA (P18)

PS/2 Keyboard &

Mouse (P20)

RS232 Serial Port l

(P19)

100/10 BASE T UTP ETHERNET P21 (RJ45)

PIN NO.

5

7

1

3

SIGNAL

TX Data +ve

RX Data +ve

75R to UTP ground

75R to UTP ground

PIN NO.

6

8

2

4

SIGNAL

TX Data -ve

75R to UTP ground

RX Data -ve

75R to UTP ground

VIDEO CONNECTOR P18 (15 WAY CONDENSED D-TYPE)

PIN NO.

7

9

11

13

15

1

3

5

SIGNAL

Analogue RED

Analogue BLUE

0 Volts (Ground)

0 Volts (Ground)

DDC +ve supply

1K pull up

Horizontal Sync

DDC Clock

PIN NO.

8

10

12

14

2

4

6

SIGNAL

Analogue GREEN

1K pull up

0 Volts (Ground)

0 Volts (Ground)

0 Volts (Ground)

DDC Data

Vertical Sync


0127-1028 Page 14


COMBINED PS/2 MOUSE AND KEYBOARD PORT P20 (6 WAY MINI-DIN)

PIN NO.

1

3

5

SIGNAL

Keyboard Data

Ground

Keyboard Clock

PIN NO.

2

4

6

SIGNAL

Mouse Data

+5 Volts (fused)

Mouse Clock

RS232 SERIAL PORT 1 P19 (9 WAY D-TYPE)

PIN NO.

5

7

1

3

9

SIGNAL

Data Carrier Detect

-Transmit Data

Ground

-Ready To Send

Ringing Indicator

PIN NO.

6

8

2

4

SIGNAL

-Receive Data

-Data Terminal Ready

-Data Set Ready

-Clear To Send

ON-BOARD CONNECTORS

There are connectors on-board for dual EIDE, SCSI II, Floppy Disk Drive, a second serial port (RS232 and RS485), a parallel port, USB, Audio, internal mouse header, utilities header, CMOS/RTC Lithium cell holder, and sensing fan connectors. See the PCB layout diagram at the end of the manual for the position of the connectors.

PRIMARY EIDE CONNECTOR P6 (40 WAY HEADER)

2

1

40

39

PIN NO.

29

31

33

35

21

23

25

27

37

39

1

3

13

15

17

19

5

7

9

11

SIGNAL

-Reset

Data bit 7 (HD)

Data bit 6 (HD)

Data bit 5 (HD)

Data bit 4 (HD)

Data bit 3 (HD)

Data bit 2 (HD)

Data bit 1 (HD)

Data bit 0 (HD)

Ground

Drive Request

-IO Write (HD)

-IO Read (HD)

Drive Ready

Drive Acknowledge

IRQ14

Address 1 (HD)

Address 0 (HD)

-Chip Select 0 (HD)

IDE LED Drive

PIN NO.

30

32

34

36

22

24

26

28

38

40

2

4

14

16

18

20

6

8

10

12

SIGNAL

Ground

Data bit 8 (HD)

Data bit 9 (HD)

Data bit 10 (HD)

Data bit 11 (HD)

Data bit 12 (HD)

Data bit 13 (HD)

Data bit 14 (HD)

Data bit 15 (HD)

Key

Ground

Ground

Ground

Cable select ( 470R to gnd)

Ground

Not Used

Not Used

Address 2 (HD)

-Chip Select 1 (HD)

Ground


0127-1028 Page 15


SECONDARY IDE CONNECTOR P7 (40 WAY HEADER)

2

1

40

39

PIN NO.

31

33

35

37

23

25

27

29

39

1

3

13

15

17

19

21

5

7

9

11

SIGNAL

-Reset

Data bit 7 (HD)

Data bit 6 (HD)

Data bit 5 (HD)

Data bit 4 (HD)

Data bit 3 (HD)

Data bit 2 (HD)

Data bit 1 (HD)

Data bit 0 (HD)

Ground

Drive Request

-IO Write (HD)

-IO Read (HD)

Drive Ready

Drive Acknowledge

IRQ15

Address 1 (HD)

Address 0 (HD)

-Chip Select 0 (HD)

IDE LED Drive

PIN NO.

32

34

36

38

24

26

28

30

40

2

4

14

16

18

20

22

6

8

10

12

SIGNAL

Ground

Data bit 8 (HD)

Data bit 9 (HD)

Data bit 10 (HD)

Data bit 11 (HD)

Data bit 12 (HD)

Data bit 13 (HD)

Data bit 14 (HD)

Data bit 15 (HD)

Key

Ground

Ground

Ground

Cable select ( 470R to gnd)

Ground

Not Used

Not used

Address 2 (HD)

-Chip Select 1 (HD)

Ground


0127-1028 Page 16


WIDE SCSI 2 CONNECTOR P4 (68 WAY HIGH DENSITY SINGLE ENDED )

SIGNAL

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Termination Power

Termination Power

Not Used

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

PIN NO.

27

28

29

30

23

24

25

26

31

32

33

34

18

19

20

21

22

14

15

16

17

10

11

12

13

8

9

6

7

3

4

1

2

5

SIGNAL

Data bit 12

Data bit 13

Data bit 14

Data bit 15

Data Parity P1

Data bit 0

Data bit 1

Data bit 2

Data bit 3

Data bit 4

Data bit 5

Data bit 6

Data bit 7

Data Parity P0

Ground

Ground

Termination Power

Termination Power

Not Used

Ground

ATTENTION

Ground

BUSY

ACKNOWLEDGE

RESET

MESSAGE

SELECT

COMMAND/DATA

REQUEST

IN/OUT

Data bit 8

Data bit 9

Data bit 10

Data bit 11

PIN NO.

61

62

63

64

57

58

59

60

65

66

67

68

52

53

54

55

56

48

49

50

51

44

45

46

47

40

41

42

43

35

36

37

38

39


0127-1028 Page 17


FLOPPY DISK DRIVE CONNECTOR P8 (34 WAY HEADER)

2

1

34

33

PIN N °

1

3

5

15

17

19

21

23

7

9

11

13

25

27

29

31

33

SIGNAL

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

PIN N °

2

4

6

16

18

20

22

24

8

10

12

14

26

28

30

32

34

SIGNAL

RPM/Low Current

Key

+Rate

-Index

-Motor 0

-Drive select 1

-Drive select 0

-Motor 1

+Direction

-Step

-Write Data

-Write Gate

-Track 0

-Write Protect

-Read Data

+Head Select

+Disk Change

ECP/EPP PARALLEL PORT P6 (26 WAY HEADER)

2

1

PIN N

°

13

15

17

19

21

23

25

5

7

1

3

9

11

SIGNAL

-Strobe

Data bit 0

Data bit 1

Data bit 2

Data bit 3

Data bit 4

Data bit 5

Data bit 6

Data bit 7

-Acknowledge

Busy

Paper Empty

Select (Output)

PIN N

°

14

16

18

20

22

24

26

6

8

2

4

10

12

SIGNAL

-Auto Feed

-Error

-Initialise

-Select (input)

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Ground

Key

26

25


0127-1028 Page 18


UTILITY CONNECTOR P10 (20 WAY HEADER)

2

1

20

25

PIN N

°

1

3

13

15

17

19

5

7

9

11

SIGNAL

Speaker +ve

Reset +ve

SCSI LED +ve

Keylock +ve

Power LED +ve

Sleep Switch +ve

IDE LED +ve

+5V (fused)

+3Volt Battery

Keyboard Data

PIN N

°

2

4

14

16

18

20

6

8

10

12

SIGNAL

Speaker -ve

Reset -ve (Ground)

SCSI LED -ve

Keylock -ve (Ground)

Power LED -ve (Ground)

Sleep Switch -ve (Ground)

IDE LED -ve

0 Volts (Ground)

0 Volts Battery (Ground)

Keyboard Clock

This connector provide support for functions which would normally be located within the enclosure, and also duplicate connections for some of the external interfaces.

SPEAKER ( P10 pins 1 & 2)

An on-board Piezo speaker is provided on the ELECTRON. An off-board speaker may be connected to the connector. The speaker provides error beep code information during the Power-On Self Test if the system cannot use the video interface.

RESET( P10 pins 3 & 4)

A reset input is supplied on the connector. The two pins ( 3 & 4 ) may be connected to a momentary action normally open SPST switch. When the switch is closed and then opened the system will perform a hard reset and run the POST.

SCSI LED ( P10 pins 5 & 6)

These two pins are used to connect to an LED to provide an indication that a SCSI hard drive connected to the on-board SCSI controller is active. A current limiting resistor is fitted on the board and the user need only connect the LED; Anode to pin 5 Cathode to pin 6.

KEYLOCK ( P10 pins 7 & 8)

These pins can be connected to a key switch to inhibit the use of the keyboard. The keyboard is inhibited when the key lock switch contacts are closed.

POWER LED (P10 pins 9 & 10)

An LED may be wired across these pins to provide a front panel indication that the Computer is powered on. A current limiting resistor is fitted on the board and the user need only connect the LED;

Anode to pin 9 Cathode to pin 10.

SLEEP/RESUME SWITCH (P10 pins 11 & 12)

These pins may be connected to a momentary-action, normally-open SPST switch. The switch may be used to toggle the PC in and out of SMM modes (i.e. Sleep / Resume). The resultant Sleep mode is a power saving mode.


0127-1028 Page 19


IDE LED ( P10 pins 13 & 14)

These two pins are used to connect to an LED to provide an indication that an IDE hard drive connected to the on-board IDE controller is active. This LED is shared by all the Primary and Secondary slave and master IDE devices. A current limiting resistor is fitted on the board and the user need only connect the

LED; Anode to pin 13 Cathode to pin 14.

INTERNAL KEYBOARD ( P10 pins 15,16,19,20)

The keyboard interface is available on connector P10 for applications requiring front panel keyboard or a keyboard compatible keypad. The +5v supply is protected by a 2 Amp resettable fuse.

EXTERNAL BATTERY (P10 pins 17 & 18)

These connections allow the user to connect an external 3 to 3.7V lithium cell to supplement or replace the on-board CR2032 button Lithium cell (BT1). Exercise caution if using this facility ( read the PRECAUTIONS section found earlier in this manual )

RS485 SERIAL PORT 2 P9 (10 WAY HEADER)

2

1

10

9

PIN NO.

1

3

5

7

9

SIGNAL

+Rx FDX

-Rx FDX

+Tx FDX,

+Rx/+Tx HDX

-Tx FDX,

-RX/-Tx HDX

-Term. 10 K to Gnd

PIN NO.

2

4

6

SIGNAL

+Term. 10 K to +5V

No Connect

No Connect

8

10 key

No Connect

RS232 SERIAL PORT 2 P13 (10 WAY HEADER)

2

1

10

9

Pin N

°

1

3

5

7

9

Signal

-Data Carrier Detect

-Receive Data

-Transmit Data

-Data Term Ready

Ground

Pin N

°

2

4

6

8

10

Signal

-Data Set Ready

-Ready To Send

-Clear To Send

-Ringing Indicator key


0127-1028 Page 20


USB CONNECTOR P11 (10 WAY HEADER)

2

1

10

9

Pin N

°

5

7

1

3

9

Signal

+5V

Port 0 -ve

Port 0 +ve

Ground

Chassis

Pin N

°

6

8

2

4

10

Signal

Chassis

Ground

Port 1 +ve

Port 1 -ve

+5v

INTERNAL SVGA CONNECTOR P15 (10 WAY HEADER)

1 2

Pin N

°

5

7

1

3

9

Signal

Red

Green

Blue

Horizontal sync

Vertical sync

9

Pin N

°

6

8

2

4

10

Ground

Ground key

Ground

Ground

Signal

AUDIO CONNECTOR P15 (10 WAY HEADER 2mm)

Pin N

°

5

7

1

3

9

Signal

Line Left In

Ground

Microphone in

Ground

Line Left Out

Pin N

°

6

8

2

4

10

Signal

Line Right In

Ground

NC

Ground

Line Right Out


0127-1028 Page 21


CD AUDIO CONNECTOR P16 (4 WAY JST HEADER)

Pin N

°

3

4

1

2

Signal

CD Left In

Ground

CD Right In

Ground

INTERNAL MOUSE CONNECTOR P14 (5 WAY HEADER)

Pin N

°

1

4

5

2

3

Signal

Mouse Data key

Ground

+5V (thermal fuse)

Mouse Clock

BUS CONNECTORS

The board incorporates the standard PC/AT 16-bit ISA bus, and PCI bus connectors to passive backplanes.

See the appendices for the pin-out details. Note that the PCI connector details the signals at the

ELECTRON processor connector. These are different for each PCI slot on a backplane.

ISA BUS XT CONNECTIONS

A= Large gold fingers on main component side

B= Large gold fingers on reverse side

PIN NO.

A22

A23

A24

A25

A26

A27

A28

A29

A14

A15

A16

A17

A18

A19

A20

A21

A30

A31

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

SIGNAL

SA9

SA8

SA7

SA6

SA5

SA4

SA3

SA2

SA17

SA16

SA15

SA14

SA13

SA12

SA11

SA10

SA1

SA0

-IOCHCK

SD7

SD6

SD5

SD4

SD3

SD2

SD1

SD0

IOCHRDY

AEN

SA19

SA18

PIN NO.

B22

B23

B24

B25

B26

B27

B28

B29

B14

B15

B16

B17

B18

B19

B20

B21

B30

B31

B1

B2

B3

B4

B5

B6

B7

B8

B9

B10

B11

B12

B13

SIGNAL

-IOR

-DACK3

DREQ3

-DACK1

DREQ1

-REF

CLK

IRQ7

IRQ6

IRQ5

IRQ4

IRQ3

-DACK2

T/C

BALE

+5 Volts

OSC

Ground

Ground

Resetdrv

+5 Volts

IRQ9

-5 Volts

DREQ2

-12 Volts

-0WS

+12 Volts

Ground

-SMEMW

-SMEMR

-IOW


0127-1028 Page 22


ISA BUS AT CONNECTIONS

C= Large gold fingers on main component side

D= Large gold fingers on reverse side

PIN NO.

C6

C7

C8

C9

C10

C11

C12

C13

C1

C2

C3

C4

C5

C14

C15

C16

C17

C18

SIGNAL

-SBHE

LA23

LA22

LA21

LA20

LA19

LA18

LA17

-MEMR

-MEMW

SD8

SD9

SD10

SD11

SD12

SD13

SD14

SD15

PIN NO.

D6

D7

D8

D9

D10

D11

D12

D13

D1

D2

D3

D4

D5

D14

D15

D16

D17

D18

SIGNAL

-MEMCS16

-IOCS16

IRQ10

IRQ11

IRQ12

IRQ15

IRQ14

-DACK0

DREQ0

-DACK5

DREQ5

-DACK6

DREQ6

-DACK7

DREQ7

+5 Volts

-Master

Ground


0127-1028 Page 23


PCI CONNECTORS

PIN

A44

A45

A46

A47

A48

A49

A38

A39

A40

A41

A42

A43

A32

A33

A34

A35

A36

A37

A25

A26

A27

A28

A29

A30

A31

A19

A20

A21

A22

A23

A24

A13

A14

A15

A16

A17

A18

A7

A8

A9

A10

A11

A12

A1

A2

A3

A4

A5

A6

A55

A56

A57

A58

A59

A60

A50

A51

A52

A53

A54

SIGNAL NAME

STOP-

3.3V

SDONE

SBO-

GND

PAR

AD15

3.3V

AD13

AD11

GND

AD9

AD24

GNT3#

3.3V (NC)

AD22

AD20

GND

AD18

AD16

3.3V (NC)

FRAME-

GND

TRDY-

GND

GND

+12V

No Connect

No Connect

Vcc

INTC#

INTA#

Vcc

CLK3

Vcc

CLK4

GND

GND

GNT2#

SPCIRST-

Vcc

GNT1#

GND

REQ3#

AD30

3.3V

AD28

AD26

GND

KEY

CBEO-

3.3V

AD6

AD4

GND

AD2

AD0

Vcc

SREQ64-

Vcc

Vcc

SIGNAL NAME

GND

PLOCK-

PERR-

3.3V

SERR-

3.3V

CBE1-

AD14

GND

AD12

AD10

GND

3.3V (NC)

CBE3-

AD23

GND

AD21

AD19

3.3V (NC)

AD17

CBE2-

GND

IRDY-

3.3V

DEVSEL-

GND

CLK1

GND

CLK2

GND

REQ1#

Vcc

AD31

AD29

GND

AD27

AD25

-12V

No Connect

GND

No Connect

Vcc

Vcc

INTB#

INTD#-

REQ4#

REQ2#

GNT4#

GND

AD8

AD7

3.3V

AD5

AD3

GND

AD1

Vcc

SACK64-

Vcc

Vcc

PIN

B44

B45

B46

B47

B48

B49

B38

B39

B40

B41

B42

B43

B32

B33

B34

B35

B36

B37

B25

B26

B27

B28

B29

B30

B31

B19

B20

B21

B22

B23

B24

B13

B14

B15

B16

B17

B18

B7

B8

B9

B10

B11

B12

B1

B2

B3

B4

B5

B6

B55

B56

B57

B58

B59

B60

B50

B51

B52

B53

B54

NOTE: The PCI connector details shown here are for the ELECTRON processor card. The PCI connectors of a backplane differ slightly, some pins having a position dependent signal.


0127-1028 Page 24


STATUS LEDS

On the underside of the Electron PCB is are clusters of LEDs. These are arranged in groups to indicate the status of various board functions:

P.O.S.T. DISPLAY

Red LEDs D17 to D24 inclusive display the Power On Self Test (POST) data byte. Diode D17( top) represent the LSB and D24 (bottom) the MSB. The LED is illuminated when the POST data bit is 1.

See the POSTCODE.PDF file for details of the error codes.

POWER SUPPLY INDICATORS

Green LEDs D5-D9 inclusive show the presence of the power supplies. Each LED is illuminated when the appropriate voltage is present.

D12 + 12 Volt supply

D10 - 12 Volt supply

D8 - 5 Volt supply

D13 2.7 Volt supply Video chip-set core voltage

D11 CPU Core voltage ( may glow dimly depending on CPU type fitted)

D9 Host CPU IO and chip-set supply (3.3 Volts)

D7 + 5 Volt (Vcc) supply

IDE ACTIVITY DISPLAY

LED D25 indicates primary and secondary IDE activity (Hard disk or CD-ROM) and is illuminated when active.

SYSTEM RESET STATUS

LED D27 indicates the system reset status. The LED is illuminated when in held in reset.

SCSI STATUS

LED D29 indicates SCSI Bus activity and is illuminated when active.

NETWORK STATUS

LED D29 indicates when the onboard ethernet controller is receiving or transmitting data on the UTP cable.


0127-1028 Page 25


I

NTEL I

740 AGP G

RAPHICS

C

ONTROLLER

The ELECTRON single board PC is equipped with an Intel i740 SVGA graphics controller with 4/8 MB of graphics memory. The Trio64V has a 64-bit graphics engine that provides acceleration for scaling the video display without compromising picture quality or frame rate. The on-chip RAMDAC/clock synthesiser is capable of output pixel data rates of 220 MHz providing screen resolutions of up to 1600 x 1200 x 256 colours at 75 Hz. 3D and 2D Hardware acceleration for graphics functions such as Shading, Mip-mapping,

Z-buffering, Texture colour keying, BitBLTs with ROPs, 2-point line draws, trapezoidal and polygon fills, clipping and cursor support provide high performance operation under Windows™ and other GUI environments. AGP x2 support ensures maximum data throughput by performing parallel data processing from both local dedicated Graphics memory and AGP system memory

The ELECTRON single board PC supports a 10 pin header for internal VGA connections. ELECTRON also supports VESA standards such as the VESA DPMS protocol to put a DPMS compliant monitor into power saving modes and the VESA Display Data Channel (DDC2B) which permits transfer of monitor identification and resolution support data for ease of use.

Note: In certain operating systems such as Win 95/98, the use of non-DDC monitors may result in screen refresh resolutions beyond those supported by the monitor. In order to overcome this potential problem, the

DDC option for the monitor should be disabled in the Display setup

RESOLUTIONS SUPPORTED

RESOLUTION

320 x 200

320 x 240

512 x 384

640 x 350

640 x 480

800 x 600

1024 x 768

1280 x 1024

1600 x1200

8 BIT

60,72,75,85

60,72,75,85

60,72,75,85

85

56,60,72,75,85

60,72,75,85

60,72,75,85

60,72,75,85

60,75

BITS PER

PIXEL ( FREQ:

HZ)

16 BIT

60,72,75,85

60,72,75,85

60,72,75,85

60,72,75,85

60,72,75,85

60,72,75,85

60,72,75,85

60,72,75,85

24 BIT

60,72,75,85

60,72,75,85

60,72,75,85

85

60, 72, 75,85

56, 60, 72,75,85

60, 70, 75,85


0127-1028 Page 26


B

IOS

The ELECTRON single board PC uses a number of BIOS’ to perform different functions:

System BIOS

Video BIOS

SCSI BIOS

Ethernet BIOS

The Pheonix system BIOS is used by the Operating system to access the onboard peripherals such as EIDE hard disks, floppy disks, USB devices, serial and parallel ports. In addition to providing this interface, the

BIOS provides a setup utility to allow the end user to set up the card for a specific installation eg different drive configurations or boot sequences etc. During the boot up sequence, the BIOS also provides a Power-On

Self Tests (POST) to ensure system integrity. The status of this POST is displayed on a set of LEDs on the underside of the PCB. The meanings of which are described in the file bios-postcode.pdf.

The Intel video BIOS provides an interface between the OS and the video controller, allowing applications to utilise both standard SVGA functions and the i740 specific functions. The video BIOS resides in a Flash based EEPROM and can be upgraded in situ.

The Adaptec SCSI BIOS allows the user to configure the SCSI bus devices and their mode of operation such as termination, transfer rates and transmission protocols.

The Realtek Ethernet BIOS provides a means of remote booting from a network. Most major networking

OS’s are supported.

SETUP UTILITY

The ROM-based Setup utility allows the configuration to be modified without opening the system for most basic changes. The Setup utility is accessible only during the Power-On Self Test (POST) by pressing the

<F2> key after the POST memory test has started and before boot begins.


0127-1028 Page 27

ELECTRON User Manual SOFTWARE DESCRIPTION

SOFTWARE DESCRIPTION

BIOS S

ETUP

An outline describing the general features of the BIOS Setup facility may be found in the Phoenix Setup

Guide -see file bios-setup.pdf (Adobe Acrobat is required).

This section details the differences and describes the additional features of the Electron Bios Setup.

MAIN MENU

SYSTEM DATE

The System Date format is dd/mm/yyyy.

MEMORY CACHE

The Memory Cache menu has been moved to the Advanced Menu.

SYSTEM SHADOW / VIDEO SHADOW

System Shadow and Video Shadow are no longer optional. The System and Video BIOS are automatically shadowed when the BIOS is decompressed during POST.

KEYBOARD FEATURES

The keyboard features menu has been added to the Main Menu .

DISPLAY BOOT-TIME DIAG INFO

This provides the option to reveal or hide the screen output generated by the BIOS.

ADVANCED HARD DISK FEATURES

ULTRA DMA MODE

Ultra DMA Mode is an additional feature added to the hard disk setup options. By setting drive type as

USER, the user may choose Disabled or UDMA Modes between 0 and 6. Selecting drive type as AUTO will let the BIOS interrogate the disk drive to determine the mode. If UDMA is supported , the mode returned by the drive will be chosen and displayed.


0127-1028 Page 29


ADVANCED MENU

The following sub-menus have been added to this page:-

PCI CONFIGURATION

Provides further menus to configure the embedded SCSI and Ethernet PCI devices .

AUDIO OPTIONS MENU

Provides setup options for the onboard Sound utilty.

I/O DEVICE CONFIGURATION

Provides setup options for the onboard Serial Ports, Parallel Port and Floppy Disk Controller

ADVANCED CHIPSET CONTROL

Provides setup options for miscellaneous features of the motherboard

LEGACY USB SUPPORT

Allows support for Legacy USB to be enabled or disabled.

POWER MENU

This menu provides the BIOS Power Management options. See the ‘Item Specific Help’ column on the

Setup display for information on the use of each option.

Note: these options may be overruled by the power management settings of the Operating System.


0127-1028 Page 30


BIOS E

XTENSIONS

S

OFTWARE

I

NTERFACE

The BIOS extensions provide the programmer with access to some of the additional functionality provided through the hardware. This is achieved through the use of a software interrupt (int 50h). A description of the functions available is described below.

ACCESSING INT 50H FUNCTIONS

Most high level languages allow access to software interrupts through a particular function call. The user loads a particular function code into the AH register followed by a specific set of parameters in the other registers before executing the interrupt.

For example, in Quick Basic

' Read E2 Data via interrupt 50 call

$include:'QB.BI'

DIM INARY%(7),OUTARY%(7)

CONST AX=0,BX=1,CX=2,DX=3,BP=4,SI=5,DI=6,FL=7

INARY%(AX) = &H0400

INARY%(BX) = &H31

' Read e2 data

' address &H31

CALL INT86OLD(&H50,INARY%(),OUTARY%()) ' Call the APEX service

PRINT "E2 ADDRESS &H31 CONTAINS: ";OUTARY%(DX) and similarly in C :-

#include <stdio.h>

#include <dos.h>

#define APEX 0x50 void main(void)

{

union REGS regs;

regs.x.ax = 0x0400; /* read e2 */

regs.x.bx = 0x31;

int86(APEX, &regs, &regs);

/* address 0x31 */

printf("e2 Address 0x31 contains %x\n",regs.x.dx);

}

INT 50H FUNCTION DEFINITIONS

This covers the BIOS extensions supported by the Wildcat board.

All other functions are reserved. If any are called, INT 50h will return with register AH = 01 and the carry flag set.

AH = 03H, WRITE TO E²PROM (SINGLE LOCATION)

The Wildcat board supports an E²PROM that may be accessed via INT 50h calls.

The E²PROM does not require to be completely erased before writing to a single location. It is therefore useful for the storage of configuration information.

There are 64, 16-bit words of E²PROM available.

Input parameters:

AH = 03h

BL = Location to write to (0-63)

DX = Data to Write (16 bit value)

Return values:


0127-1028 Page 31


Carry flag clear if successful.

Carry flag Set if unsuccessful.

AH = 04H, READ E²PROM (SINGLE LOCATION)

Input parameters:

AH = 04h

BL = Location to read (0-63)

Return values:

DX = E²PROM Data

AH = 05H, WATCHDOG ENABLE/DISABLE

This function enables the simple 500ms watchdog.

Input parameters:

AH = 05h

AL = 01h - Enable

AL = 00h - Disable

Return values:

Returns with the carry flag clear.

AH = 06H, WATCHDOG TICK

When enabled, the watchdog will generate a hardware reset unless a WATCHDOG TICK function call is made at least once every 500 milliseconds.

This function will reset the watchdog count.

Input parameters:

AH =06h

Return values:

Returns with the carry flag clear


0127-1028 Page 32


D

ISK

-O

N

-C

HIP

S

UPPORT

The Electron supports the use of M-Systems’ DiskOnChip 2000 or DiskOnChip Millennium Flash Modules as solid-state disks. The notes below detail the use of the device with MS-DOS. If support is required for other operating systems, please consult Blue Chip Technology Technical Services, or M-Systems web-site at www.m-sys.com

, for drivers and application notes.

The DiskOnChip 2000 and Millennium contain a built-in copy of the M-Systems industry-standard TrueFFS software, which allows the DiskOnChip to operate as a standard disk drive. The DiskOnChip may also contain the operating system thereby permitting systems to boot without a hard disk. The DiskOnChip may also be configured as the boot device in systems with a hard disk (see the section “Configuring the

DiskOnChip as the First Drive”).

The DiskOnChip is a self-contained device, the installation of which does not necessarily require any software installation. The basic design of the DiskOnChip allows for full upward and downward compatibility by supporting an unlimited capacity. Future DiskOnChip devices with higher densities will be fully compatible with today’s capacities of 2 to 288 MBytes, and the standard DiskOnChip socket.

INSTALLING THE DISK-ON-CHIP

Before installing or removing the DiskOnChip, please read the section on Electro-Static Discharges at the beginning of this manual. It is essential that you discharge any static electricity from your body before touching the board or DiskOnChip module. Use the following procedure to install the DiskOnChip:

•

Align pin 1 on the DiskOnChip with pin 1 of the socket (adjacent to the battery).

•

Push the DiskOnChip into the socket carefully until it is fully seated.

•

Check that the DiskOnChip is installed securely, and that there are no bent pins.

Caution: The DiskOnChip may be permanently damaged if installed incorrectly!

To install the DiskOnChip as drive C on a system without a hard disk, set the CMOS setup of drive C to

“not installed” (indicating that no physical magnetic disk is installed), and reboot the computer. The

DiskOnChip will install as drive C. The DiskOnChip should then be formatted with the System files in order for it to be a bootable drive. See “Configuring the DiskOnChip as the BOOT device” below.

To install the DiskOnChip as drive D on a system with a hard disk, reboot the system, and the

DiskOnChip will automatically install as drive D.

To install the DiskOnChip as Drive C on a system with a hard disk, see below “Configuring the

DiskOnChip as the First Drive”.

CONFIGURING THE DISK-ON-CHIP AS THE BOOT DEVICE

To configure the DiskOnChip as the boot device, the operating system files have to be copied to it.

Copying the operating system files into DiskOnChip is done in exactly the same way as any other hard disk. The following is an example of a typical initialisation process:

•

Set the DiskOnChip as a regular drive in your system (not a boot drive).

•

Install a bootable floppy diskette in drive A and boot the system.

•

At the DOS prompt, type SYS C: to transfer the DOS system files to the DiskOnChip (assuming the

DiskOnChip is installed as drive C).

•

Copy any files needed into the DiskOnChip.

•

Remove the floppy diskette and reboot the system.


0127-1028 Page 33


The system will boot from the DiskOnChip, and will allow you to run and access any files that have been copied into the DiskOnChip.

CONFIGURING THE DISK-ON-CHIP AS THE FIRST DRIVE

The DiskOnChip can be configured to be installed as the last drive (default), or as the first drive in the system. When configured as the last drive, the DiskOnChip is installed as disk D if there is one other hard drive installed, and as drive C if no other hard disk is installed. When configured as the first drive, the

DiskOnChip is always installed as drive C. The DiskOnChip is shipped from the factory, configured to install as the last drive. To configure the DiskOnChip to be installed as the first drive, proceed as follows:

•

Boot the system and make sure the DiskOnChip is installed correctly as drive D

•

At the DOS prompt type: DUPDATE D: /FIRST /S:DOC123.EXB

After re-booting the system, the DiskOnChip will appear as drive C:


0127-1028 Page 34

ELECTRON U SER M ANUAL A PPENDICES

APPENDICES

A

DDRESS

M

APS

MEMORY MAP

ADDRESS

RANGE

(DECIMAL)

ADDRESS

RANGE

(HEX)

1024K - 131072K 100000 - 8000000

896K - 1023K E0000 - FFFFF

880K - 895K

848K - 879K

800K - 847K

DC000 - DFFFF

D4000 - DBFFF

C8000 - D3FFF

640K - 799K

639K

512K - 638K

0K - 511K

A0000 - C7FFF

9FC00 - 9FFFF

80000 - 9FBFF

00000 - 7FFFF

SIZE

127M

128K

16K

32K

48K

160K

1K

127K

512K

DESCRIPTION

Extended Memory

Pheonix System BIOS

(not available for UMB)

Solid State Disk Pages

BIOS Extensions

Available HI DOS memory

(open to ISA and PCI bus)

On-board video memory and

BIOS

Extended BIOS Data

(moveable by QEMM, 386MAX)

Extended conventional

Conventional

I/O MAP

The following table lists the I/O addresses used by single board PC devices. Some of these devices (e.g.

graphics) may not be present in all configurations. Some devices (serial ports, parallel ports etc.) may be configured for various addresses or disabled. These I/O locations are listed in the Variable Resources column.

ADDRESS

(HEX)

0000 - 000F

0020 - 0021

002E - 002F

0040 - 0043

0060

0061

0064

0070, bit 7

0070, bits 6:0

0071

0080 - 008F

00A0 - 00A1

00B2 - 00B3

00C0 - 00DE

00F0

0100 - 0107

0170 - 0177

01F0 - 01F7

0200 - 0207

0278 - 027B

02E8 - 02EF

02F8 - 02FF

SIZE

Bytes

FIXED RESOURCES

4

8

8

8

8

16

2

2

4

1

1

1

1 bit

PIIX - DMA 1

PIIX - Interrupt Controller 1

Ultra I/O configuration registers

PIIX - Timer 1

Keyboard Controller Data Byte

PIIX - NMI, speaker control

Kbd Controller, CMD/STAT Byte

PIIX - Enable NMI

7 bits 87C307PIIX RTC, Address

1 87C307PIIX RTC, Data

16

2

2

PIIX - DMA Page Register

PIIX - Interrupt Controller 2

PIIX - APM Control / Status

Interrupt Controller 2

31

1

8

8

PIIX - DMA 2

Reset Numeric Error

Reserved for Board Confign.

VARIABLE

RESOURCES

Secondary IDE Channel

Primary IDE Channel

Gameport Joystick

Parallel Port 2

Serial Port 4

Serial Port 2


0127-1028 Page 35


ADDRESS

(HEX)

0376

0377

0378 - 037F

03B0 - 03BB

03BC - 03BF

03C0 - 03DF

03E8 - 03EF

03F0 - 03F5

03F6

03F7 (Write)

03F7, bit 7

03F7, bits 6:0

03F8 - 03FF

LPT + 400h

04D0 - 04D1

0CF8 - 0CFC*

0CF9

0CFC - 0CFF

FFA0 - FFA7

FFA8 - FFAF

FF00-FF07

SIZE

Bytes

1

1

1 bit

7 bits

8

3

4

16

8

6

8

4

1

1

1

4

2

4

8

8

8

FIXED RESOURCES

Edge/Level INTR Control Reg.

PCI Config Address Reg.

Turbo & Reset control Reg.

PCI Config Data Reg

VARIABLE

RESOURCES

Sec IDE Chan Cmd Port

Sec IDE Chan Stat Port

Parallel Port 1

I740

Parallel Port 3

I740

Serial Port 3

Floppy Channel 1

Pri IDE Chan Cmnd Port

Floppy Chan 1 Cmd

Floppy Disk Chg Chan 1

Pri IDE Chan Status Port

Serial Port 1

ECP regs, LPT base +

400h

1ary Bus MasterIDE regs

2ary Bus Master IDE regs

IDE Bus Master Reg.

*only accessible by DWORD accesses.

PCI CONFIGURATION SPACE MAP

The Intel 440BX chipset uses Configuration Mechanism 1 to access the PCI configuration space. The PCI

Configuration Address register is a 32-bit I/O register located at 0CF8h, the PCI Configuration Data register is a 32-bit I/O register located at 0CFCh. The PCI Configuration Address register is only accessible by a DWORD access, the PCI Configuration Data register is accessible by DWORD, WORD or

BYTE accesses.

ACCESS TO I/O CONFIGURATION SPACE USING MECHANISM #1

1. Using a DWORD write command, output the required I/O configuration address to I/O port CF8H

2. Using a DWORD read or write command, read or write data from the I/O port CFCH

NOTE: Any address output to CF8H is always on a 4 byte (DWORD) boundary. You can read or write any BYTE, WORD or DWORD in the four byte range by using the correct offset as follows:

DWORD @ CFCh

WORD @ CFCh or CFEh

BYTE @ CFCh, CFDh, CFEh or CFFh

CONFIGURATION ADDRESS REGISTER BIT DEFINITION

BIT

31

30 - 24

23 -16

15 - 11

10 - 8

7 - 2

1

0

FUNCTION / SETTING

1

RESERVED

BUS NUMBER

DEVICE NUMBER

FUNCTION NUMBER

REGISTER NUMBER

0

0


0127-1028 Page 36


CONFIG SPACE ENABLE FLAG (Bit 31): Always 1 to indicate I/O access is to configuration space.

RESERVED (Bits 30-24): Always 00h

BUS NUMBER (Bits 23-16): Always 00h unless a bridge card is installed in a PCI slot

DEVICE NUMBER (Bits 15-11): Used to indicate a specific PCI device. The 443BX host has a predefined device number of 00000h. The PIIX4 and four PCI slots also have specific device numbers, that device number is determined by which PCI Address/Data line is connected to the device’s ID SEL pin. The table below details the specific mapping information.

FUNCTION NUMBER (Bits 10-8): Used to indicate a specific function in multifunction PCI devices.

The PIIX is the only multi-function device on ELECTRON located on the single board PC. Use 00h for the basic PIIX device and 01h for the PCI IDE BUS MASTER FUNCTION. For a multi-function PCI add-in card, refer to the card’s documentation to determine the allowable function numbers.

REGISTER NUMBER (Bits 7-2): Defines one of 64 DWORD locations for a specific PCI device.

Note that Bits 1 and 0 must always be 0h for DWORD access.

The table below lists the PCI bus and device numbers used by the single board PC. It also lists the data range that must be written to the I/O Configuration Address register to access the device.

DEVICE

443BX Host controller

PIIX4

PIIX-IDE BUS MASTER

Realtek Ethernet device

Adaptec SCSI II device

PCI SLOT 1

PCI SLOT 2

PCI SLOT 3

PCI SLOT 4

BUS/DEVIC

E/

FUNCTION

00 / 00 / 0

00 / 07 / 0

00 / 07 / 1

00 / 09 / 0

00 / 10 / 0

00 / 14 / 0

00 / 13 / 0

00 / 12 / 0

00 / 12 / 0

ID

SEL

N/A

AD18

AD18

AD20

AD21

AD31

AD30

AD29

AD28

I/O CONFIG ADDRESS

REGISTER

8000 0000 - 8000 00FC

8000 3800 - 8000 38FC

8000 3900 - 8000 39FC

8000 4800 - 8000 48FC

8000 5000 - 8000 50FC

8000 8800 - 8000 88FC

8000 8600 - 8000 86FC

8000 8400 - 8000 84FC

8000 8000 - 8000 80FC

INTERRUPTS & DMA CHANNELS

The following tables list the Interrupt and DMA Channel configuration options for on-board devices. The serial ports, parallel ports, and IDE controller can be configured using SETUP, or any other Plug and Play resource manager (such as the Windows™ 95 Device Manager). The Graphics interrupt is assigned by the auto-configure utility during boot up.

IRQ RESERVED

INTERRUPTS

5

6

3

4

NMI I/O Channel Check

0 Interval Timer

1

2

Keyboard buffer full

Cascade interrupt from slave PIC

Serial 2 (COM2)

Serial 1 (COM1)

Parallel 2 (LPT2)

Floppy Controller

7

8

9

Parallel (LPT1)

Real time clock


0127-1028 Page 37


IRQ

10

11

12

13

14

15

RESERVED

INTERRUPTS

PS/2 Mouse

(if present)

Math co-processor

Primary E-IDE

Secondary E-IDE

DMA

6

7

4

5

2

3

0

1

RESERVED

Floppy

Cascade channel

BIOS POST CODES, ERROR MESSAGES AND BEEPCODES

See the file BIOSERR.PDF - (Adobe Acrobat is required).


0127-1028 Page 38

ELECTRON U SER M ANUAL A PPENDICES th

P16:CD Audio

P15:SVGA

P14: Mouse

P7: 2 nd

EIDE

P6: 1 st

EIDE

P8:Floppy

P12: LPT1

P13:Com2

RS232

P9:Com2

RS485

J4:CPU Freq

P21: Ethernet

P18: SVGA

P20: kb/mouse

P19: Com1

J5:232/485 link

P17:Audio

Disk on

Chip

P11:USB

P10:

Utilities

P5: Fan 3

J2: SCSI

Termination

Power

P4: SCSI II

J3:1/2 duplex

P3: Fan 2

P2: Fan 1

DIMMs 1&2

Slot 1

CPU

SECC


J1:CMOS

BT1:Battery

0127-1028 Page 39


D10:-12Volt

D12:+12Volt

D17:LSB bit 0

D25: IDE

D27:RESET

D29:Network

D29:SCSI

POST LEDs

D7: +5 Volt

D9:+3.3 Volt

D11:CPU volt

D13:+2.7 Volt

D24:MSB bit 7


0127-1028 Page 40

BLUE CHIP ELECTRON User manual

ELECTRON

User Manual

ELECTRON

User Manual

OMPANY

ROFILE

INTRODUCTION

ANUAL

BJECTIVES

IMITATIONS OF

IABILITY

RECAUTIONS

ELATED

UBLICATIONS

RADEMARKS

USER GUIDE

VERVIEW

PECIFICATION

INSTALLATION

Electro-Static Discharge

CPU INSTALLATION

MEMORY INSTALLATION

JUMPER SETTINGS

NTEL I

RAPHICS

ONTROLLER

IOS

SOFTWARE DESCRIPTION

ETUP

XTENSIONS

OFTWARE

NTERFACE

ISK

N

HIP

UPPORT

APPENDICES

DDRESS

APS

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Apex

Abit

BE6-II

Gigabyte

BX2000+

SOYO

SY-6VBA 133

SOYO

SY-7VBA 133

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