BlueChip BCT-ETX-C3-XXX User manual

BCT-ETX-C3-XXX
ETX format Single Board PC
User Manual
Document Reference BCTETXC3 Manual
Document Issue Level 1.3
Manual covers PCBs with the following Issue 1.x (where 'x' is any alphanumeric).
Blue Chip Technology Ltd.
Chowley Oak
Tattenhall
Chester
CH3 9EX
U.K.
Telephone: [phone]
Facsimile: [phone]
www.bluechiptechnology.co.uk

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER
Contents
BLUE CHIP TECHNOLOGY LTD...............................................................................1
INTRODUCTION.........................................................................................................4
COMPANY PROFILE..........................................................................................................................4
COPYRIGHT.......................................................................................................................................4
LIMITATIONS OF LIABILITY ..............................................................................................................4
RELATED PUBLICATIONS ................................................................................................................5
TRADEMARKS....................................................................................................................................5
PRECAUTIONS...................................................................................................................................6
Electro-Static Discharges.............................................................................................................................6
On-Board Battery .........................................................................................................................................6
BIOS & CMOS RAM.....................................................................................................................................6
Electromagnetic Compatibility.....................................................................................................................6
WARNING...................................................................................................................7
USER GUIDE..............................................................................................................8
MANUAL ORGANISATION.................................................................................................................8
OVERVIEW .........................................................................................................................................9
BCT-ETX-C3-XXX PROCESSOR BOARD PHOTO.........................................................................10
5-VOLT POWER .......................................................................................................14
5-VOLT STAND–BY POWER....................................................................................14
BOARD LAYOUT ..............................................................................................................................15
Top Surface of the PCB ..............................................................................................................................15
INSTALLATION.........................................................................................................16
MOUNTING.......................................................................................................................................16
THERMAL PLATE.............................................................................................................................17
CONNECTOR PIN ASSIGNMENT ...................................................................................................18
COOLING..........................................................................................................................................32
CABLING...........................................................................................................................................32
EMC ISSUES ....................................................................................................................................33
INTERRUPT ASSIGNMENT TABLE.................................................................................................34
DIRECT MEMORY ACCESS CHANNELS (DMA)............................................................................35
I/O ADDRESS MAP (HEX)................................................................................................................35
MEMORY ADDRESS MAP (HEX)....................................................................................................36
PERIPHERAL COMPONENT INTERCONNECT DEVICES (PCI)...................................................36
USING THE BOARD.................................................................................................37

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER
BIOS SETTINGS...............................................................................................................................37
LOADING OPERATING SYSTEMS & DRIVERS.............................................................................37
PROGRAMMING THE BOARD ........................................................................................................38
PROGRAMMING THE BOARD ........................................................................................................38
User EEPROM............................................................................................................................................38
Watchdog facility........................................................................................................................................38
Accessing Software 'INT 50h' Functions.....................................................................................................39
MAINTENANCE ................................................................................................................................40
TROUBLESHOOTING GUIDE..................................................................................41
AMENDMENT HISTORY...........................................................................................42

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INTRODUCTION
INTRODUCTION
COMPANY PROFILE
Blue Chip Technology is a leading specialist PC product manufacturer in Europe, providing innovation with
quality design and manufacturing from a single source.
Based in the North West of England, our purpose built complex contains both advanced research and
development facilities, and manufacturing facilities.
Specialising in the provision of industrial computing and electronic solutions for a wide range of UK and
European organisations, Blue Chip Technology has one of the UK's largest portfolios of industrial PCs, Single
Board Computers, peripherals and data acquisition cards. This extensive range of products, coupled with our
experience and expertise, enables Blue Chip Technology to offer an industrial processing solution for any
application. This is one of the products from our portfolio, providing you with a cost effective product
development and volume production tool.
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 major companies.
British Standards Institute approval (BS EN 9001) means that all of Blue Chip Technology's design and
manufacturing procedures are strictly controlled, ensuring the highest levels of quality, reliability and
performance.
Blue Chip Technology are 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.
COPYRIGHT
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 please 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.
LIMITATIONS OF LIABILITY
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.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INTRODUCTION
RELATED PUBLICATIONS
The following publications will provide useful information related to the Standard Personal Computer and can
be used in conjunction with this manual.
IBM Personal Computer AT Technical Reference, 1502494, IBM, 1984.
IBM Personal System/2 and Personal Computer BIOS Interface Technical Reference, 15F0306, IBM,
1987.
The Programmers PC Sourcebook, Microsoft
The Winn L. Rosch Hardware Bible, Brady
TRADEMARKS
All trademarks and registered names acknowledged.
IBM, PC, AT and PS/2 are trademarks of International Business Machines Corporation (IBM).
Phoenix BIOS is a trademark of Phoenix Technologies Inc
Intel is a registered trademark of the Intel Corporation.
All 80x86 and Pentium processors are registered trademarks of Intel Corporation.
MS-DOS and WINDOWS are registered trademarks of the Microsoft Corporation.
Linux is a registered trademark of Linus Torvalds.
ATA-Disk Chip is a trademark of Silicon Storage Technology Inc.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INTRODUCTION
PRECAUTIONS
Certain precautions are necessary when designing with, handling, and using circuit boards. It is imperative
that precautions are taken at all stages to avoid electro-static discharges, which will damage boards. Those
boards fitted with an on-board lithium battery must be handled carefully to avoid maltreatment of the
battery that could create a hazard.
ELECTRO-STATIC DISCHARGES
The devices on this card can be totally destroyed by static electricity. Also bear in mind that the damage
caused by static electricity may be partial and not immediately obvious. This could have an effect on your
product's reliability and warranty. Ensure that you take necessary static precautions, ideally you should
wear an approved wrist strap or if that is not possible, 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 black anti-static bags because these tend to be conductive and will
discharge any on-board battery.
ON-BOARD BATTERY
The BCT-ETX-C3-XXX board does not have an on-board lithium cell connected, however the base board to
which it connects may be equipped with a cell. To that end the following precautions apply and should be
observed. If the battery is mistreated in any way there is a very real possibility of fire, explosion, and harm.
Great care should be taken with this type of battery. Under NO circumstances should it be:
short-circuited
exposed to temperatures in excess of 100 ºC or burnt
immersed in water
unsoldered
recharged
disassembled
Expired batteries remain hazardous and must be disposed of in a safe manner.
BIOS & CMOS RAM
Please be aware that on single board computer products, 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 on the base board being used for details).
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 housing. However, because the board can be
installed in a wide variety of base boards and chassis, 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 (ITE Class A product).

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INTRODUCTION
The board must be installed in a computer system chassis that provides screening suitable for an
industrial environment.
Any recommendations made by the computer system manufacturer/supplier must be complied with
regarding earthing and the installation of boards.
Any metal back plate must be securely screwed to the chassis of the computer to ensure good metal-to-
metal (i.e. earth) contact.
Connector bodies must be securely connected to the enclosure.
The external cabling to boards causes most EMC problems. It is imperative that any external cabling to
the board is totally screened, and that the screen of the cable connects to the metal end bracket of the
board or the enclosure 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
that connect around the full circumference of the cable screen: they are far superior to those that earth
the screen by a simple “pig-tail”.
The keyboard and mouse will play an important part in the compatibility of the processor card since they
are ports into the board. Similarly, they will affect the compatibility of the complete system. Fully
compatible peripherals must be used otherwise the complete system could be degraded. They may
radiate or behave as if keys/buttons are pressed when subject to interference. Under these circumstances
it may be beneficial to add a ferrite clamp on the leads as close as possible to the connector. A suitable
type is the Chomerics type H8FE-1004-AS.
USB cables should be high quality screened types.
Ensure that the screens of any external cables are bonded to a good RF earth at the remote end of the
cable.
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.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER USER GUIDE
USER GUIDE
MANUAL ORGANISATION
This manual describes in detail the Blue Chip Technology BCT-ETX-C3-XXX 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 BCT-ETX-C3-XXX.
The manual is sectioned as follows:
Overview, listing the board's features and specification;
Layout, showing where the various items are located;
Installation, and associated issues;
Using the board, including the peripherals;
Troubleshooting guide;
Connector Pin-Out details.
We strongly recommend that you study this manual carefully before attempting to interface with BCT-ETX-
C3-XXX 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. IT IS
PARTICULARLY IMPORTANT THAT YOU READ THE SECTION 'PRECAUTIONS' BEFORE
HANDLING THE BOARD.
If you have any suggestions or find any errors concerning this manual and want to inform us of these, please
contact our Technical Services department with the relevant details.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER USER GUIDE
OVERVIEW
1.1 Introduction
The Blue Chip Technology BCT-ETX-C3-XXX Single Board PC integrates the latest advances in low
power processor, memory, and I/O technologies to provide an ideal platform for embedded applications. The
BCT-ETX-C3-XXX complies with the embedded ETX standard set of Bus interface signals and peripheral IO
devices interfaces on a single card. The concept of ETX is to provide the user with a standard connector
interface with fixed connector locations and predefined IO functions. This allows the user to concentrate their
design efforts on the supporting base board for the target application. This modular approach provides a cost
effective means of system upgrade and allows the user to easily validate a number of CPU board
price/power/performance options.
The board is available with CPU build options of an extremely Low Power VIA Eden ESP 400 (400MHz) and
Low Power VIA C3 1Gz processor. On-board voltage regulator circuits provide the required voltages for the
processor from the incoming 5 volt power supply. The 400MHz ESP C3 version of BCT-ETX-C3-XXX is
targeted at lower cost, power conscious, performance driven applications. The 1Ghz C3 build offers a higher
performance solution for applications where reduced power is less of a requirement. In addition a special
266MHz version is available for the lowest power consumption applications. Further variants are VIA Eden
733Mhz and VIA C3 800Mhz processors.
The processor maintains full backward compatibility with the 8086, 80286, i386 and Intel486 processors.
It supports both read and write burst mode bus cycles, and includes separate on-chip code and data caches
which employ a write-back policy. Cache is integrated within the CPU and operates at the full CPU frequency
giving excellent performance. Cache size is 128K L1 and 64K L2. Also integrated into the processor is an
advanced numeric co-processor which significantly increases the speed of floating point operations, whilst
maintaining backward compatibility with Intel486 math co-processor and complying with ANSI/IEEE
standard 754-1985.
The memory interface supports up to 512MB of 3.3V PC133 SDRAM, in a standard 144 pin SODIMM
socket.
Solid State expansion is available through an ATA Disk Chip option, providing up to 512MB. This option can
be populated at the Factory or by the user.
The BCT-ETX-C3-XXX utilises VIA’s PN133T chipset to integrate many peripherals. These include: VGA
controller with CRT, LVDS and LCD interfaces, ATA-100 IDE interface, ATA solid state disk, 10/100 Fast
Ethernet controller, floppy disk interface, quad USB ports, dual serial ports, parallel port, real-time clock,
keyboard and mouse (PS/2) controller, AC’97 audio interface. Connection to these functions is made through
a standard set of ETX connectors onto a base board. The base board can then bring these signals to either
Industry standard or customer specified connectors. The base board may be a custom design, developed for a
specific application or a standard solution offered by Blue Chip Technology.
The BCT-ETX-C3-XXX will drive up to four external PCI cards, all of which can perform Bus Mastering.
Further IO expansion is available through the 16-bit ISA bus.
A full set of software drivers and utilities are available to allow advanced operating systems such as
Windows™ 9x, Me, NT, 2000 & XP to take full advantage of all the hardware capabilities.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER USER GUIDE
BCT-ETX-C3-XXX PROCESSOR BOARD PHOTO

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER USER GUIDE
Board Level Features
CPU: VIA C3 800MHz/1Ghz (128KB L1 & 64KB L2 cache)
VIA Eden 266/400/733MHz (128KB L1 & 64KB L2 cache)
CPU Cooling: Passive CPU heat spreader/ heat sink cooling for lower
performance parts
Chipset: VIA PN133T Chipset including:
VT8606 North Bridge.
VT82C686B South Bridge.
BIOS: Phoenix BIOS, with Ethernet Boot ROM option, BCT BIOS
extensions and INT calls
Support for APM and VIA Power Saver (Long-Haul) technology.
Customer Splash screen option available
Memory: 64MB to 512Mbyte PC133/100/66 SDRAM expansion using
horizontal 144 pin SODIMM.
3V3 only operation.
SPD scheme for SDRAM identification.
No Support for parity memory.
Cache: 128KB L1 and 64KB L2 Cache is integrated into the CPU
Solid State Disk: ADC (ATA Flash) site for onboard Flash optional. Note height when
fitted.
Onboard Peripherals:
Graphics: Integrated AGP (x4) Graphics controller based on S3 Savage 4
CRT SVGA at 1600 x 1200 resolution.
Direct LCD support for STN, DSTN and TFT up to 18 bit
Dual channel LVDS for up to 18 bit panels
Selection between Direct LCD and LVDS is a build option.
8 to 32Mbyte of video memory (Shared Memory Architecture SMA)
Supports 848*480 & 1024*512 widescreen resolutions
Ethernet: 10/100 Base-T Ethernet using Intel 82551ER
Boot ROM option within the BIOS set-up for remote booting (PXE).
Note: the base board must carry the magnetic for network isolation
Storage: ATA100/66/33 EIDE HDD (quad drives, dual connectors) provided by
South Bridge. 80 way cable detection incorporated.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER USER GUIDE
512 bytes of E²PROM with Device Drivers.
Audio: Integrated Soundblaster/Direct sound AC97 controller
Line In/Out, Microphone and CD in.
Note: CD in and Line in share the same pins and are therefore
mutually exclusive.
Monitoring: CPU Core(1.05 to 1.6V), North Bridge Core(2.5), 3V3 and 5V voltage
monitors
Two on board thermistors for system thermal monitoring
Hardware Watchdog timer with configurable timeout.
Software enabled/disable through an IO port. The time-out results in a
system Reset. Device Driver support is available.
Power monitoring of the +5 volt rail included in the Reset circuit. Reset
generated if the rail falls below 4.65 volts.
Communications:
Quad USB Ver 1.x Compliant
Two 16C550 compatible serial ports at TTL level signalling.
Note: Base board must provide RS232 or RS485 transceivers.
One IR port. This is shared with the second serial port UART.
Parallel port with Bi-directional, EPP & ECP.
Floppy interface with support for dual 1.44MB FDD
Note: the floppy or parallel port are an option that is determined at
boot time by strapping a pin on the base board ie if floppy port
selected then there is no parallel port and vice-versa)
PS/2 compatible keyboard and mouse port. Connector located on
baseboard
Miscellaneous:
PC standard Real Time Clock is integrated into the South Bridge. Due
to height constraints, the battery has to be located on the host board.
Speaker, Reset switch, Power Switch, Hard Disk Activity LED,
Suspend Switch and external Lithium coin cell are all supported and
located on the base board.
Expansion Bus:
As per ETX specification, 4 connectors (X1-X4)
The host board supports four standard 5V 32 bit 33MHz PCI slots. The
PCI is V2.2 compliant.
ISA Expansion supports three standard 16-bit ISA slots.
Connector X1 provides the PCI Bus, USB and Audio
Connector X2 provides the ISA Bus
Connector X3 provides the VGA, LCD, COM1&2 (TTL) LPT1, Mouse
and Keyboard.
Connector X4 provides the Ethernet (non-isolated), 2xEIDE (4 drives),
utilities signals and power management and control.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER USER GUIDE
Further details for these connectors can be found in the next section of
this document
Board Profile: ETX format 114 x 95mm.
4 mounting holes. Details provided in the next section of this document
The CPU board carries the CPU, North Bridge South Bridge,
SODIMM, BIOS ROM, clock circuits, AC97 Codec, Ethernet
controller and all the CPU required power circuits.
Power: 5Volt only operation (and 5Vsb if ATX operation required)
On board switching regulator for 1.05 to 1.6V (CPU) and 3V3 IO. All
other rails derived from on board regulators: 2.5V (North Bridge). 1.5V
(+GLT Bus and CMOS), Standby 3V3 (Ethernet & support). All other
devices are driven from 5V.
General and Operational Specifications:
Operating temperature range 0 C to +60 C, -20 C to +70 C Storage
Specially engineered 2mm thermal plate designed to assist cooling of
CPU and North bridge. This plate does not provide cooling in its own
right but acts as a heat spreader for heat-sink/fan cooling. This solution
is required on high end CPU options.
Relative Humidity 5 - 95% non-condensing.
Shock and vibration to conform to light industrial usage
Design to be available for manufacture until at least the end of 2005.
Designed to conform to CE standard (89/336/EEC or later) in a
representative enclosure.
Operating System Support:
Windows NT Embedded, Windows XP Embedded, Windows CE.net,
Embedded Linux, Embedded QNX and desktop Operating Systems.
Windows CE.NET to boot from storage devices using FastBoot utility.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER USER GUIDE
Specification:
5-Volt Power
Consumption 2.2 A typical, 2.6 A peak 266 MHz C3 CPU, 128 MB SDRAM
2.2 A typical, 2.6 A peak 266 MHz C3 CPU, 512 MB SDRAM
2.4 A typical, 2.7A peak 400 MHz C3 CPU, 128 MB SDRAM
3.5 A typical, 4.9 A peak 800 MHz C3 CPU, 128 MB SDRAM
3.7 A typical, 5.3 A peak 1000 MHz C3 CPU, 128 MB SDRAM
3.9 A typical, 5.5 A peak 1000 MHz C3 CPU, 512 MB SDRAM
5-Volt Stand–by Power
Consumption 120 mA peak 266 MHz C3 CPU,
130 mA peak 400 MHz C3 CPU,
150 mA peak 800 MHz C3 CPU,
180 mA peak 1000 MHz C3 CPU,
Temperature Non-Operating -20 ºC to +70 ºC
Operating +0 ºC to +60 ºC
(Heatsinks and airflow will be required for the higher limits)
EMC Emissions EN 55022 (A)
Immunity EN 55024
MTBF Calculated >100,000 Hrs
Dimensions Board & heat spreader 114 x 95 x 12mm
{Large heatsink may increase these dimensions.}
Power Consumption figures are to be Advised.
This information is provided only as a guide to calculating approximate total system power. Power usage
will increase when additional resources are added.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER USER GUIDE
BOARD LAYOUT
TOP SURFACE OF THE PCB
Via
C3
CPU
ATA
Disk
Chip
Via
PN133T
NB
Via
686B
SB
SDRAM SODIMM
Figure 1. BCT-ETX-C3-XXX PCB - Top View Main Component Positions.
See the section "BCT-ETX-C3-XXX Connectors " for details of individual signals on the connectors.
Pin1
Ethernet
BIOS

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INSTALLATION
INSTALLATION
MOUNTING
The BCT-ETX-C3-XXX board has 4 mounting holes of 2.5mm diameter. Care should be taken on the
underside of the board to not cause any mechanical damage to the components adjacent to the mounting holes.
All connections to the BCT-ETX-C3-XXX CPU are made through connectors X1-X4 inclusive. These Hirose
plug connectors (Part Number FX8-100P-SV) mate with corresponding Hirose socket connectors (Part
Number FX8-100S-SV). When installing or removing the BCT-ETX-C3-XXX module into the target base
board, ensure all power has been removed. This includes the 5volt supply, the 5V stand-by supply and the
external Lithium cell or RTC back-up battery.
Figure 2. BCT-ETX-C3-XXX PCB - Top View Showing Mounting Hole Positions.
All Dimensions in millimetres
Please note that the spacing/alignment for the ETX module connectors and the baseboard connectors differs by
0.6mm.
Where the spacing of X1 and X2 from X3 and X4 is 109.2mm on the module (111.6-2.4), it is 109.8mm (111.9-
2.1) on the baseboard. This is due to a different offset between pegs and connector aperture in the two mating
connectors.
Included in our reference design pack is a DXF file of our Evaluation Backplane for this reason.
Also note that bookmarks 1 and 2 in our diagram indicate 1.1 and 0.7 mm holes for the pegs –adjacent to pins 1
and 99 on the connectors.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INSTALLATION
THERMAL PLATE
The BCT-ETX-C3-XXX Module has been designed to operate in conjunction with a thermal heat-spreading
plate. This 2mm thick aluminium plate is designed to assist in the cooling solution by providing a uniform
thermal interface which thermally couples to the heat generating components of the BCT-ETX-C3-XXX, namely
the North Bridge chip and the CPU itself. This uniform thermal interface allows the user to apply an appropriate
cooling solution such as a fan, heat-sink, heat-pipe or chassis fixing. The heat-spreader plate is not a heat-sink
but may provide adequate cooling for lower power CPUs running non-CPU intensive applications . Clearance
slots in the heat spreader plate permit the user access the SODIMM and ATA Disk Chip Socket for upgrading
the system.

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INSTALLATION
CONNECTOR PIN ASSIGNMENT
Connector X1
Pin Number
Signal
Pin Number
Signal
1
GND
2
GND
3
PCICLK3
4
PCICLK4
5
GND
6
GND
7
PCICLK1
8
PCICLK2
9
REQ3#
10
GNT3#
11
GNT2#
12
3V
13
REQ2#
14
GNT1#
15
REQ1#
16
3V
17
GNT0#
18
NC
19
VCC
20
VCC
21
SERIRQ
22
REQ0#
23
AD0
24
3V
25
AD1
26
AD2
27
AD4
28
AD3
29
AD6
30
AD5
31
CBE0#
32
AD7
33
AD8
34
AD9
35
GND
36
GND
37
AD10
38
AUXAL
39
AD11
40
MIC
41
AD12
42
AUXAR
43
AD13
44
ASVCC
45
AD14
46
SNDL
47
AD15
48
ASGND
49
CBE1#
50
SNDR
51
VCC
52
VCC
53
PAR
54
SERR#
55
PERR#
56
NC
57
PME#
58
USB2#
59
LOCK#
60
DEVSEL#
61
TRDY#
62
USB3#
63
IRDY#
64
STOP#
65
FRAME#
66
USB2
67
GND
68
GND
69
AD16
70
CBE#2
71
AD17
72
USB3
73
AD19
74
AD18
75
AD20
76
USB0#
77
AD22
78
AD21
79
AD23
80
USB1#
81
AD24
82
CBE3#
83
VCC
84
VCC
85
AD25
86
AD26
87
AD28
88
USB0
89
AD27
90
AD29
91
AD30
92
USB1
93
PCIRST#
94
AD31
95
INTC#
96
INTD#
97
INTA#
98
INTB#
99
GND
100
GND

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INSTALLATION
Connector X2
Pin Number
Signal
Pin Number
Signal
1
GND
2
GND
3
SD14
4
SD15
5
SD13
6
MASTER#
7
SD12
8
DREQ7
9
SD11
10
DACK7#
11
SD10
12
DREQ6
13
SD9
14
DACK6#
15
SD8
16
DREQ5
17
MEMW#
18
DACK5#
19
MEMR#
20
DREQ0
21
LA17
22
DACK0#
23
LA18
24
IRQ14
25
LA19
26
IRQ15
27
LA20
28
IRQ12
29
LA21
30
IRQ11
31
LA22
32
IRQ10
33
LA23
34
IOCS16#
35
GND
36
GND
37
SBHE#
38
MEMCS16#
39
SA0
40
OSC
41
SA1
42
BALE
43
SA2
44
TC
45
SA3
46
DACK2#
47
SA4
48
IRQ3
49
SA5
50
IRQ4
51
VCC
52
VCC
53
SA6
54
IRQ5
55
SA7
56
IRQ6
57
SA8
58
IRQ7
59
SA9
60
SYSCLK
61
SA10
62
REFRESH#
63
SA11
64
DREQ1
65
SA12
66
DACK1#
67
GND
68
GND
69
SA13
70
DREQ3
71
SA14
72
DACK3#
73
SA15
74
IOR#
75
SA16
76
IOW#
77
SA18
78
SA17
79
SA19
80
SMEMR#
81
IOCHRDY
82
AEN
83
VCC
84
VCC
85
SD0
86
SMEMW#
87
SD2
88
SD1
89
SD3
90
0WS#
91
DREQ2
92
SD4
93
SD5
94
IRQ9
95
SD6
96
SD7
97
IOCHCK#
98
RSTDRV
99
GND
100
GND

BCT-ETX-C3-XXX SINGLE BOARD COMPUTER INSTALLATION
Connector X3
Pin Number
Signal
Pin Number
Signal
1
GND
2
GND
3
RED
4
BLUE
5
HSYNC
6
GREEN
7
VSYNC
8
DDCK
9
DETECT#
10
DDDA
11
2ND LVDSCLK#/B4
12
SHFCLK
13
2ND LVDSCLK/B5
14
EN
15
GND
16
GND
17
2ND LVDS 1/B1
18
2ND LVDS2/B3
19
2ND LVDS1#/B0
20
2ND LVDS2#/B2
21
GND
22
GND
23
G2
24
2ND LVDS0/G5
25
G3
26
2ND LVDS0#/G4
27
GND
28
GND
29
1ST LVDS2#/R4
30
1ST LVDSCLK/G1
31
1ST LVDS2/R5
32
1ST LVDSCLK#/G0
33
GND
34
GND
35
1ST LVDS0/R1
36
1ST LVDS1/R3
37
1ST LVDS0#/R0
38
1ST LVDS1#/R2
39
VCC
40
VCC
41
I2CDAT
42
LTGIO/FLM
43
I2CCLK
44
BLON#
45
BIASON/LP
46
DIGON
47
NC
48
NC
49
NC
50
NC
51
LPT/FLPY#
52
NC
53
VCC
54
GND
55
STB#/RSVD
56
AFD#/DENSEL
57
RSVD
58
RSVD
59
IRRX
60
ERR#/HDSEL#
61
IRTX
62
PD6/RSVD
63
RXD2
64
INIT#/DIR#
65
GND
66
GND
67
RTS2#
68
PD5/RSVD
69
DTR2#
70
SLIN#/STEP#
71
DCD2#
72
PD4/DSKCHG#
73
DSR2#
74
PD3/RDATA#
75
CTS2#
76
PD2/WP#
77
TXD2
78
PD1/TRK0#
79
RI2#
80
PD0/INDEX#
81
VCC
82
VCC
83
RXD1
84
ACK#/DRV
85
RTS1#
86
BUSY#/MOT
87
DTR1#
88
PE/WDATA#
89
DCD1#
90
SLCT#/WGATE#
91
DSR1#
92
MSCLK
93
CTS1#
94
MSDAT
95
TXD1
96
KBCLK
97
RI1#
98
KBDAT
99
GND
100
GND
NOTE: These signals are the definition for the LCD build version of the BCT-ETX-C3-XXX
NOTE: These signals are the definition when signal LPT/FLPY# (Pin51 of X3) is pulled low at power on.