Kontron ETX -CN8 User manual

®Kontron User's Guide
®ETX®-CN8
Document Revision 1.3

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Table of Contents
Kontron User's Guide ETX®-CN8 iii
Table of Contents
U1UUUser InformationU........................................................................................................ 6
U1.1UUAbout This DocumentU.........................................................................................6
U1.2UUCopyright NoticeU...............................................................................................6
U1.3UUTrademarksU......................................................................................................6
U1.4UUStandardsU........................................................................................................6
U1.5UUWarrantyU.........................................................................................................6
U1.6UUTechnical SupportU..............................................................................................7
U2UUIntroductionU.............................................................................................................. 8
U2.1UUETX®-CN8U........................................................................................................8
U2.2UUETX® DocumentationU.........................................................................................8
U2.3UUETX® BenefitsU...................................................................................................9
U3UUSpecificationsU...........................................................................................................10
U3.1UUFunctional SpecificationsU..................................................................................10
U3.1.1UUBlock diagramU................................................................................................12
U3.2UUMechanical SpecificationsU.................................................................................13
U3.2.1UUDimensionsU....................................................................................................13
U3.3UUElectrical SpecificationsU....................................................................................13
U3.3.1UUSupply VoltageU................................................................................................13
U3.3.2UUSupply Voltage RippleU......................................................................................13
U3.3.3UUSupply Current 5 V_SBU...................................................................................... 13
U3.3.4UUSupply Current (typical, DOS prompt)U..................................................................13
U3.3.5UUSupply Current (Windows XP SP2)U.......................................................................14
U3.3.6UUCMOS Battery Power ConsumptionU......................................................................14
U3.4UUEnvironmental SpecificationsU............................................................................15
U3.4.1UUTemperatureU...................................................................................................15
U3.4.2UUHumidityU.......................................................................................................15
U3.5UUMTBFU.............................................................................................................16
U4UUETX® ConnectorsU.......................................................................................................17
U4.1UUConnector LocationsU........................................................................................17
U4.2UUGeneral Signal DescriptionU................................................................................18
U4.3UUConnector X1 (PCI Bus, USB, Audio)U....................................................................18
U4.3.1UUConnector X1 (Signal Levels)U.............................................................................19
U4.4UUConnector X2 (ISA Bus only supported on Prev. x12 and later)U..................................22
U4.4.1UUConnector X2 (Signal Levels)U.............................................................................23
U4.4.2UUConnector X2 Signal DescriptionU.........................................................................25
U4.5UUConnector X3 (VGA, LCD, Video, COM1 and COM2, LPT/Floppy, Mouse, Keyboard)U.........26
U4.5.1UUConnector X3 (Signal Levels)U.............................................................................28

Table of Contents
Kontron User's Guide ETX®-CN8 iv
U4.6UUConnector X4 SubsystemsU.................................................................................32
U4.6.1UUConnector X4 (IDE 1, IDE 2, Ethernet, Miscellaneous)U.............................................32
U4.6.2UUConnector X4 (Signal Levels)U.............................................................................33
U5UUSpecial FeaturesU........................................................................................................37
U5.1UUWatchdog TimerU..............................................................................................37
U5.2UUSATA SupportU.................................................................................................37
U6UUDesign ConsiderationsU................................................................................................38
U6.1UUThermal ManagementU.......................................................................................38
U6.2UUHeat spreader DimensionsU.................................................................................39
U6.2.1UU18031-0000-99-0 Heatspreader with threadU........................................................39
U6.2.2UU18031-0000-99-1 Heatspreader through holeU.......................................................40
U6.3UUETX-CN8® onboard fan connectorU.......................................................................41
U6.3.1UUSchematics of fan controlU..................................................................................41
U6.3.2UULocation and Pinout of fan connector J2U..............................................................42
U7UUImportant Technology InformationU..............................................................................43
U7.1UUI/O APIC vs 8259 PIC Interrupt modeU...................................................................43
U7.1.1UUMethod of interrupts transmissionU......................................................................43
U7.1.2UUInterrupt priorityU............................................................................................ 43
U7.1.3UUMore interruptsU...............................................................................................43
U7.2UUThermal Monitor and Catastrophic Thermal ProtectionU............................................43
U7.3UUACPI Suspend Modes and Resume EventsU..............................................................43
U8UUSystem ResourcesU......................................................................................................45
U8.1UUInterrupt Request (IRQ) LinesU............................................................................45
U8.2UUDirect Memory Access (DMA) ChannelsU.................................................................46
U8.3UUMemory AreaU..................................................................................................47
U8.4UUI/O Address MapU.............................................................................................47
U8.5UUInter-IC (I2C) BusU............................................................................................47
U8.6UUSystem Management (SM) BusU...........................................................................47
U8.7UUJILI-I2C BusU...................................................................................................47
U9UUBIOS OperationU.........................................................................................................48
U9.1UUDetermining the BIOS VersionU............................................................................48
U9.2UUSetup GuideU...................................................................................................48
U9.2.1UUStart AMI® BIOS Setup UtilityU............................................................................48
U9.3UUBIOS Setup MenusU...........................................................................................50
U9.3.1UUMain MenuU.....................................................................................................50
U9.3.2UUAdvanced MenuU...............................................................................................51
U9.3.3UUPCI/PnP MenuU.................................................................................................68

Table of Contents
Kontron User's Guide ETX®-CN8 v
U9.3.4UUBoot MenuU.....................................................................................................69
U9.3.5UUSecurity MenuU.................................................................................................71
U9.3.6UUExit MenuU......................................................................................................72
U9.4UUUpdating and Restoring of BIOSU.........................................................................73
U9.5UUPreventing Problems When Updating or Restoring BIOSU..........................................73
U10UUAppendix F: JIDA StandardU..........................................................................................74
U10.1UUJIDA InformationU............................................................................................74
U11UUAppendix G: PC Architecture InformationU......................................................................75
U11.1UUBusesU............................................................................................................75
U11.1.1UUISA, Standard PS/2 – ConnectorsU........................................................................75
U11.1.2UUPCI/104U.........................................................................................................75
U11.2UUGeneral PC ArchitectureU....................................................................................76
U11.3UUPortsU.............................................................................................................76
U11.3.1UURS-232 SerialU.................................................................................................76
U11.3.2UUSerial ATAU......................................................................................................76
U11.3.3UUUSBU..............................................................................................................77
U11.4UUProgrammingU.................................................................................................77
U12UUAPPENDIX I: DOCUMENT-REVISION HISTORYU...................................................................78

1 User Information
Kontron User's Guide ETX®-CN8 6
1User Information
1.1 About This Document
This document provides information about products from Kontron Embedded Modules GmbH and/or its
subsidiaries. No warranty of suitability, purpose, or fitness is implied. While every attempt has been
made to ensure that the information in this document is accurate, the information contained within is
supplied “as-is” and is subject to change without notice.
For the circuits, descriptions and tables indicated, Kontron assumes no responsibility as far as patents or
other rights of third parties are concerned.
1.2 Copyright Notice
Copyright © 2003-2009 Kontron Embedded Modules GmbH
All rights reserved. No part of this document may be reproduced, transmitted, transcribed, stored in a
retrieval system, or translated into any language or computer language, in any form or by any means
(electronic, mechanical, photocopying, recording, or otherwise), without the express written permission
of Kontron Embedded Modules GmbH.
DIMM-PC®, PISA®, ETX®, ETXexpress®, microETXexpress™, X-board®, DIMM-IO® and DIMM-BUS® are
trademarks or registered trademarks of Kontron Embedded Modules GmbH. Kontron is trademark or
registered trademark of Kontron AG.
1.3 Trademarks
The following lists the trademarks of components used in this board.
®IBM, XT, AT, PS/2 and Personal System/2 are trademarks of International Business
Machines Corp.
®Microsoft is a registered trademark of Microsoft Corp.
®Intel is a registered trademark of Intel Corp.
®All other products and trademarks mentioned in this manual are trademarks of their
respective owners.
1.4 Standards
Kontron Embedded Modules GmbH is certified to ISO 9000 standards.
1.5 Warranty
This Kontron Embedded Modules GmbH product is warranted against defects in material and
workmanship for the warranty period from the date of shipment. During the warranty period, Kontron
Embedded Modules GmbH will at its discretion decide to repair or replace defective products.
Within the warranty period, the repair of products is free of charge as long as warranty conditions are
observed.

1 User Information
Kontron User's Guide ETX®-CN8 7
The warranty does not apply to defects resulting from improper or inadequate maintenance or handling
by the buyer, unauthorized modification or misuse, operation outside of the product’s environmental
specifications or improper installation or maintenance.
Kontron Embedded Modules GmbH will not be responsible for any defects or damages to other products
not supplied by Kontron Embedded Modules GmbH that are caused by a faulty Kontron Embedded
Modules GmbH product.
1.6 Technical Support
Technicians and engineers from Kontron Embedded Modules GmbH and/or its subsidiaries are available
for technical support. We are committed to making our product easy to use and will help you use our
products in your systems.
Please consult our Web site at HUhttp://www.kontron.com/supportUH for the latest product documentation,
utilities, drivers and support contacts. In any case you can always contact your board supplier for
technical support.

2 Introduction
Kontron User's Guide ETX®-CN8 8
2Introduction
2.1 ETX®-CN8
ETX®-CN8 is the latest 'Computer On Module' based on ETX® 3.0 standard. The new ETX®-CN8 module is
based on the VIA C7® processor and VIA Eden® processor as well as the VIA CN896 and VIA VT8237S
chipset.
ETX®-CN8 modules also will provide the following interfaces that are always located in the same physical
position on each board, thus guaranteeing scalability between modules.
It also takes advantage of the new ETX® 3.0 specification that allow for 2 Serial ATA ports without
violating the existing ETX® 2.8 pin usage.
For further expansions two IDE ports with Ultra133 DMA capabilities are available. The ISA bus signals
are also available. A lot of existing ISA boards can still be used via an ISA slot on a baseboard. This
avoids expensive redesigns and well proven ISA cards to PCI versions for standard PC motherboards.
PCI32, USB 2.0, Serial ATA, Parallel ATA, LVDS Multi-Media ports as well as an ACPI (Advanced
Configuration and Power Interface) for optimized power management. The JILI display interface
technology ensures automatic setting of the video controller parameters for the attached LCD panel.
Seven mounting holes on the board provide secure mounting to allow the module increased shock and
vibration resistance.
2.2 ETX® Documentation
This product manual serves as one of three principal references for an ETX® design. It documents the
specifications and features of ETX®-CN8. The other two references, which are available from the Kontron
Embedded Modules GmbH Web site, include:
®The ETX® Component SBC™ Specification defines the ETX® module form factor,
pinout, and signals. You should read this first.
®The ETX® Component SBC™ Design Guide serves as a general guide for baseboard
design, with a focus on maximum flexibility to accommodate a range of ETX®
modules.
Note: Some of the information contained within this product manual applies only to certain product revisions
(Prev: xxx). If certain information applies to specific product revisions (Prev: xxx) it will be stated. Please
check the product revision of your module to see if this information is applicable.

2 Introduction
Kontron User's Guide ETX®-CN8 9
2.3 ETX® Benefits
Embedded technology extended (ETX®) modules are very compact (~100mm square, 12mm thick),
highly integrated computers. All ETX® modules feature a standardized form factor and a standardized
connector layout that carry a specified set of signals. This standardization allows designers to create a
single-system baseboard that can accept present and future ETX® modules.
ETX® modules include common personal computer (PC) peripheral functions such as:
®Graphics
®Parallel, Serial, and USB ports
®Keyboard/mouse
®Ethernet
®Sound
®IDE
The baseboard designer can optimize exactly how each of these functions implements physically.
Designers can place connectors precisely where needed for the application on a baseboard designed to
optimally fit a system’s packaging.
Peripheral PCI or ISA buses can be implemented directly on the baseboard rather than on mechanically
unwieldy expansion cards. The ability to build a system on a single baseboard using the computer as one
plug-in component simplifies packaging, eliminates cabling, and significantly reduces system-level cost.
A single baseboard design can use a range of ETX® modules. This flexibility can differentiate products at
various price/performance points, or to design future proof systems that have a built-in upgrade path.
The modularity of an ETX® solution also ensures against obsolescence as computer technology evolves.
A properly designed ETX® baseboard can work with several successive generations of ETX® modules.
An ETX® baseboard design has many advantages of a custom, computer-board design but delivers better
obsolescence protection, greatly reduced engineering effort, and faster time to market.

3 Specifications
Kontron User's Guide ETX®-CN8 10
3Specifications
3.1 Functional Specifications
Processor: VIA C7™ and VIA Eden™
®Cache: 64KB-I /64KB-D Cache, 128KB L2 Cache
®VIA C7 1.5GHz, VIA EDEN 500MHz
Northbridge: VIA CN896
®Memory: One DDR2 400/533 DDR SODIMM up to 2048MB
®CRT: WUXGA 1920x1440
®Onboard video graphics array (VGA): VIA CN896 integrated Uni Chrom Pro IGP Dual
Independent Display Support
Southbridge: VIA VT8237S
®IDE: 2 Channels UDMA-133
®PCI Bus: 32-bit/33MHz 4 PCI Masters
®4 Channels Universal Serial Bus (USB 2.0; UHCI / EHCI)
®PS/2 keyboard/mouse controller integrated in the Southbridge
®2 Channels Serial ATA Spec. Rev. 2.5, up to 300 MB/s per channel
LVDS interface: LVDS transmitter VIA VT1636
®LCD: TFT LCD up to 1600x1200 LVDS (JILI3)
TTL interface: LVDS receiver DS90CF364 + LVDS transmitter VT1636
®LCD: TTL interface (optional): shared with LVDS
Audio: VIA VT1708B
®Intel High Definition Audio Specification Rev.1.0 Compliant
®Line-In, Line-Out, Mic-In
ISA Bus: IT8888G PCI to ISA Bridge
®Supports full ISA specification, except busmaster DMA
Super I/O: WINBOND W83627HFJ LPC Super I/O
®Serial Ports (COM1 and COM2)
®Infrared Device Association (IrDA) 1.0 SIR interface
®Parallel Port (LPT1)
®Enhanced Parallel Port (EPP) and Extended Capabilities Port (ECP) with bi-directional
capability
®Floppy (optional): shared with LPT signals

3 Specifications
Kontron User's Guide ETX®-CN8 11
Onboard Ethernet: VIA VT6103L
®10BASE-T/100BASE-T LAN
BIOS: AMI, 1 MB Flash BIOS
®BIOS support for external super I/O (COM3, COM4, LPT, and Floppy)
Watchdog timer (WDT)
Real-time clock with CMOS RAM
Standard ACPI Support

3 Specifications
Kontron User's Guide ETX®-CN8 12
3.1.1 Block diagram

3 Specifications
Kontron User's Guide ETX®-CN8 13
3.2 Mechanical Specifications
3.2.1 Dimensions
®95.0 mm x 114.0 mm (3.75” x 4.5”)
®Height approx. 12 mm (0.4”)
3.3 Electrical Specifications
3.3.1 Supply Voltage
®5V DC +/- 5%
3.3.2 Supply Voltage Ripple
®Maximum 100 mV peak to peak 0 – 20 MHz
3.3.3 Supply Current 5 V_SB
®Typical 100 mA, peak 250 mA
3.3.4 Supply Current (typical, DOS prompt)
Power-consumption tests were executed during the DOS prompt and without a keyboard. Using a
keyboard takes an additional 100 mA.
All boards were equipped with 512MB DDR SDRAM. Modules were tested using maximum CPU frequency.
ETX® board Prompt
[A] [W]
Standby
[A] [W]
Suspend
[A] [W]
ETX®-CN8 500 1,81 9,18 1,34 6,88 1,34 6,88
ETX®-CN8 1500 3,10 15,33 1,72 8,78 1,72 8,78

3 Specifications
Kontron User's Guide ETX®-CN8 14
3.3.5 Supply Current (Windows XP SP2)
The tested boards were mounted on a Kontron Evaluation Board (Article number: 18010-0000-00-0), a
mouse and a keyboard were connected. The Power-consumption tests were executed during Windows XP
SP2 by using a tool to stress the CPU (100 % load). The power measurements values were acquired after
15 min full load and a stable CPU die temperature. To ensure a stable die temperature a corresponding
heatsink was used to hold the temperature under the critical trip point.
All boards were equipped with 512MB DDR SDRAM. The Modules were tested using maximum CPU
frequency.
ETX® board Full Load Idle Idle with C1E/EIST
[A]5V [A]5VSB [W] [A]5V [A]5VSB [W] [A]5V [A]5VSB [W]
ETX-CN8 500 MHz 2,04 0,02 10,29 1,82 0,01 9,22 1,83 0,01 9,12
ETX-CN8 1500 MHz 3,40 0,02 17,40 1,83 0,01 9,16 1,81 0,02 9,23
ETX® board Standby S1 Standby S3 cold S3 hot
[A]5V [A]5VSB [W] [A]5V [A]5VSB [W] [A]5V [A]5VSB [W]
ETX-CN8 500 MHz 1,58 0,01 7,94 0,02 0,137 0,77 np np np
ETX-CN8 1500 MHz 1,60 0,01 8,06 0,02 0,137 0,77 np np np
ETX® board Soft Off (ACPI S5)
[A]5VSB [W]
ETX-CN8 500 MHz 0,11 0,55
ETX-CN8 1500 MHz 0,12 0,59
Note: It is difficult to test for all possible applications on the market. There may be an application that draws more
power from the CPU than the measured values in the table above. This should be taken into consideration if
you are on the board of the thermal specification. If this is the case improvements to your thermal solution
are recommended.
3.3.6 CMOS Battery Power Consumption
RTC Voltage Range Quiescent Current
Integrated in the southbridge 2.0 V – 3.6 V
2.95 μA @ 2.5 V
3.64 μA @ 3.0 V
CMOS battery power consumption was measured with an ETX®-CN8 module on a standard Kontron ETX®
evaluation board. The system was turned off and the battery was removed from the evaluation board.
The 2.5 V or 3.0 V of power was supplied from a DC power supply. Do not use these values to calculate the
CMOS battery lifetime.

3 Specifications
Kontron User's Guide ETX®-CN8 15
3.4 Environmental Specifications
3.4.1 Temperature
Operating: (with Kontron Embedded Modules GmbH heat-spreader plate assembly):
®Ambient temperature: 0 to +60 °C
®Maximum heatspreader-plate temperature: 0 to +60 °C (*)
®Non-operating: -30 to +85 °C
See the XThermal ManagementXchapter for additional information.
Note: *The maximum operating temperature with the heatspreader plate is the maximum measurable temperature
on any spot on the heatspreader’s surface. You must maintain the temperature according to the above
specification.
Operating (without Kontron Embedded Modules GmbH heat-spreader plate assembly):
®Maximum operating temperature: 0 to +60 °C (**)
®Non operating: -30 to +85 °C
See the XThermal ManagementXchapter for additional information.
Note: **The maximum operating temperature is the maximum measurable temperature on any spot on a module’s
surface. You must maintain the temperature according to the above specification.
3.4.2 Humidity
®Operating: 10% to 90% (non condensing)
®Non operating: 5% to 95% (non condensing)

3 Specifications
Kontron User's Guide ETX®-CN8 16
3.5 MTBF
The following MTBF (Mean Time Between Failure) values were calculated using a combination of
manufacturer’s test data, if the data was available, and a Bellcore calculation for the remaining parts.
The Bellcore calculation used is “Method 1 Case 1”. In that particular method the components are
assumed to be operating at a 50 % stress level in a 40° C ambient environment and the system is
assumed to have not been burned in. Manufacturer’s data has been used wherever possible. The
manufacturer’s data, when used, is specified at 50° C, so in that sense the following results are slightly
conservative. The MTBF values shown below are for a 40° C in an office or telecommunications
environment. Higher temperatures and other environmental stresses (extreme altitude, vibration, salt
water exposure, etc.) lower MTBF values.
®System MTBF (hours) : 174189
Notes: Fans usually shipped with Kontron Embedded Modules GmbH products have 50,000-hour typical operating
life. The above estimates assume no fan, but a passive heat sinking arrangement Estimated RTC battery life
(as opposed to battery failures) is not accounted for in the above figures and need to be considered for
separately.Battery life depends on both temperature and operating conditions. When the Kontron unit has
external power; the only battery drain is from leakage paths.

4 ETX® Connectors
Kontron User's Guide ETX®-CN8 17
4ETX® Connectors
The pinouts for ETX® Interface Connectors X1, X2, X3, and X4 are documented for convenient reference.
Please see the ETX® Specification and ETX® Design Guide for detailed, design-level information.
4.1 Connector Locations
IDE Ports
Ethernet
Power Good/Reset Input
ATX PS Control
Speaker
Battery
I2C-Bus
SM-Bus
ISA Bus
VGA
LVDS (JILI)
Serial Ports
PS/2 Keyboard/Mouse
IRDA
Parallel Port
Floppy
PCI Bus
USB
Audio
Serial IRQ
3.3 V for external use
(max. 500 mA)
side view
(connectors only)
top view
(connectors only)
X
1
X
2X4
X3

4 ETX® Connectors
Kontron User's Guide ETX®-CN8 18
4.2 General Signal Description
Term Description
IO-3,3 Bi-directional 3,3 V IO-Signal
IO-5 Bi-directional 5 V IO-Signal
I-3,3 3,3 V Input
I-5 5 V Input
O-3,3 3,3 V Output
O-5 5 V Output
PU Pull-Up Resistor
PD Pull-Down Resistor
PWR Power Connection
Nc Not Connected / Reserved
4.3 Connector X1 (PCI Bus, USB, Audio)
Pin Signal Pin Signal Pin Signal Pin Signal
1 GND 2GND 51 VCC * 52 VCC *
3 PCICLK3 4PCICLK4 53 PAR 54 SERR#
5 GND 6GND 55 GPERR# 56 RESERVED
7 PCICLK1 8PCICLK2 57 PME# 58 USB2#
9 REQ3# 10 GNT3# 59 LOCK# 60 DEVSEL#
11 GNT2# 12 3V 61 TRDY# 62 USB3#
13 REQ2# 14 GNT1# 63 IRDY# 64 STOP#
15 REQ1# 16 3V 65 FRAME# 66 USB2
17 GNT0# 18 RESERVED 67 GND 68 GND
19 VCC * 20 VCC * 69 AD16 70 CBE2#
21 SERIRQ 22 REQ0# 71 AD17 72 USB3
23 AD0 24 3V 73 AD19 74 AD18
25 AD1 26 AD2 75 AD20 76 USB0#
27 AD4 28 AD3 77 AD22 78 AD21
29 AD6 30 AD5 79 AD23 80 USB1#
31 CBE0# 32 AD7 81 AD24 82 CBE3#
33 AD8 34 AD9 83 VCC * 84 VCC *
35 GND 36 GND 85 AD25 86 AD26
37 AD10 38 AUXA
L
87 AD28 88 USB0
39 AD11 40 MIC 89 AD27 90 AD29
41 AD12 42 AUXAR 91 AD30 92 USB1
43 AD13 44 ASVCC 93 PCIRST# 94 AD31
45 AD14 46 SNDL 95 INTC# 96 INTD#
47 AD15 48 ASGND 97 INTA# 98 INTB#
49 CBE1# 50 SNDR 99 GND 100 GND
Notes: * To protect external power lines of peripheral devices, make sure that:
- the wires have the right diameter to withstand the maximum available current
- the enclosure of the peripheral device fulfils the fire-protection requirements of IEC/EN60950

4 ETX® Connectors
Kontron User's Guide ETX®-CN8 19
4.3.1 Connector X1 (Signal Levels)
Pin 1-50 PCI|USB|AUDIO
Pin Si
g
na
l
Descri
p
tion T
yp
eTermination Commen
t
1 GND Ground PWR --
2 GND Ground PWR --
3 PCICLK3 PCI Clock Slot 3 O-3,3 --
4 PCICLK4 PCI Clock Slot 4 O-3,3 --
5 GND Ground PWR --
6 GND Ground PWR --
7 PCICLK1 PCI Clock Slot 1 O-3,3 --
8 PCICLK2 PCI Clock Slot 2 O-3,3 --
9 REQ3# PCI Bus Re
q
uest 3 I-3,3 --
10 GNT3# PCI Bus Grant 3 O-3,3 --
11 GNT2# PCI Bus Grant 2 O-3,3 --
12 3V Power +3,3V PWR --
13 REQ2# PCI Bus Re
q
uest 2 I-3,3 --
14 GNT1# PCI Bus Grant 1 O-3,3 --
15 REQ1# PCI Bus Re
q
uest 1 I-3,3 --
16 3V Power +3,3V PWR --
17 GNT0# PCI Bus Grant 0 O-3,3 --
18 nc - nc --
19 VCC Power +5V PWR --
20 VCC Power +5V PWR --
21 SERIRQ Serial Interru
p
t Re
q
es
t
IO-3,3 PU 4k7 3,3V -
22 REQ0# PCI Bus Re
q
uest 0 I-3,3 --
23 AD0 PCI Adress & Data Bus line IO-3,3 -
24 3V Power +3,3V PWR --
25 AD1 PCI Adress & Data Bus line IO-3,3 --
26 AD2 PCI Adress & Data Bus line IO-3,3 --
27 AD4 PCI Adress & Data Bus line IO-3,3 --
28 AD3 PCI Adress & Data Bus line IO-3,3 --
29 AD6 PCI Adress & Data Bus line IO-3,3 --
30 AD5 PCI Adress & Data Bus line IO-3,3 --
31 CBE0# PCI Bus Command and B
y
te enables 0 IO-3,3 --
32 AD7 PCI Adress & Data Bus line IO-3,3 --
33 AD8 PCI Adress & Data Bus line IO-3,3 --
34 AD9 PCI Adress & Data Bus line IO-3,3 --
35 GND Ground PWR --
36 GND Ground PWR --
37 AD10 PCI Adress & Data Bus line IO-3,3 --
38 AUXA
L
Auxiliar
y
Line In
p
ut Lef
t
I - -
39 AD11 PCI Adress & Data Bus line IO-3,3 --
40 MIC Micro
p
hone In
p
u
t
I - -
41 AD12 PCI Adress & Data Bus line IO-3,3 --
42 AUXAR Auxiliar
y
Line In
p
ut Ri
g
h
t
I - -
43 AD13 PCI Adress & Data Bus line IO-3,3 --
44 ASVCC Analo
g
Su
pp
l
y
of Sound Controller O-5 --
45 AD14 PCI Adress & Data Bus line IO-3,3 --
46 SNDL Audio Out Lef
t
O - -
47 AD15 PCI Adress & Data Bus line IO-3,3 --
48 ASGND Analo
g
Ground of Sound Controller P - -
49 CBE1# PCI Bus Command and B
y
te enables 1 IO-3,3 --
50 SNDR Audio Out Ri
g
h
t
O - -
Note: The termination resistors in this table are already mounted on the ETX® board. Please refer to the design
guide for information about additional termination resistors.

4 ETX® Connectors
Kontron User's Guide ETX®-CN8 20
Pin 51–100: PCI|USB|AUDIO
Pin Si
g
na
l
Descri
p
tion T
yp
eTermination Commen
t
51 VCC Power +5V PWR --
52 VCC Power +5V PWR --
53 PAR PCI Bus Parit
y
IO-3,3 --
54 SERR# PCI Bus S
y
stem Error IO-3,3 PU 2k7 3,3V -
55 GPERR# PCI Bus Grant Error IO-3,3 PU 2k7 3,3V -
56 nc - nc -Reserved
57 PME# PCI Power Mana
g
ement Even
t
IO-3,3 PU 10K 3.3V -
58 USB2# USB Data- , Port2 IO-3,3 PD 15K -
59 LOCK# PCI Bus Lock IO-3,3 PU 2k7 3,3V -
60 DEVSEL# PCI Bus Device Selec
t
IO-3,3 PU 2k7 3,3V -
61 TRDY# PCI Bus Tar
g
et Read
y
IO-3,3 PU 2k7 3,3V -
62 USB3# USB Data- , Port3 IO-3,3 PD 15K -
63 IRDY# PCI Bus Initiator Read
y
IO-3,3 PU 2k7 3,3V -
64 STOP# PCI Bus Sto
p
IO-3,3 PU 2k7 3,3V -
65 FRAME# PCI Bus C
y
cle Frame IO-3,3 PU 2k7 3,3V -
66 USB2 USB Data+ , Port2 IO-3,3 PD 15K -
67 GND Ground PWR --
68 GND Ground PWR --
69 AD16 PCI Adress & Data Bus line IO-3,3 --
70 CBE2# PCI Bus Command and B
y
te enables 2 IO-3,3 --
71 AD17 PCI Adress & Data Bus line IO-3,3 --
72 USB3 USB Data+ , Port3 IO-3,3 PD 15K -
73 AD19 PCI Adress & Data Bus line IO-3,3 --
74 AD18 PCI Adress & Data Bus line IO-3,3 --
75 AD20 PCI Adress & Data Bus line IO-3,3 --
76 USB0# USB Data- , Port0 IO-3,3 PD 15K -
77 AD22 PCI Adress & Data Bus line IO-3,3 --
78 AD21 PCI Adress & Data Bus line IO-3,3 --
79 AD23 PCI Adress & Data Bus line IO-3,3 --
80 USB1# USB Data- , Port1 IO-3,3 PD 15K -
81 AD24 PCI Adress & Data Bus line IO-3,3 --
82 CBE3# PCI Command and B
y
te enables 3 IO-3,3 --
83 VCC Power +5V PWR --
84 VCC Power +5V PWR --
85 AD25 PCI Adress & Data Bus line IO-3,3 --
86 AD26 PCI Adress & Data Bus line IO-3,3 --
87 AD28 PCI Adress & Data Bus line IO-3,3 --
88 USB0 USB Data+ , Port0 IO-3,3 PD 15K -
89 AD27 PCI Adress & Data Bus line IO-3,3 --
90 AD29 PCI Adress & Data Bus line IO-3,3 --
91 AD30 PCI Adress & Data Bus line IO-3,3 --
92 USB1 USB Data+ , Port1 IO-3,3 PD 15K -
93 PCIRST# PCI Bus Rese
t
O-3,3 --
94 AD31 PCI Adress & Data Bus line IO-3,3 --
95 INTC# PCI BUS Interru
p
t Re
q
uest C I-3,3 PU 2k7 3,3V -
96 INTD# PCI BUS Interru
p
t Re
q
uest D I-3,3 PU 2k7 3,3V -
97 INTA# PCI BUS Interru
p
t Re
q
uest A I-3,3 PU 2k7 3,3V -
98 INTB# PCI BUS Interru
p
t Re
q
uest B I-3,3 PU 2k7 3,3V -
99 GND Ground PWR --
100 GND Ground PWR --
Note: The termination resistors in this table are already mounted on the ETX® board. Please refer to the design
guide for information about additional termination resistors.