Kontron ETX-DC User manual

If it’s embedded, it’s Kontron
ETX-DC®
Document Revision: 1.7

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» Table of Contents «
1User Information............................................................................ 1
1.1 About This Document ................................................................................................................................. 1
1.2 Copyright Notice ....................................................................................................................................... 1
1.3 Trademarks .............................................................................................................................................. 1
1.4 Standards ................................................................................................................................................ 1
1.5 Warranty.................................................................................................................................................. 2
1.6 Technical Support...................................................................................................................................... 2
2Introduction ................................................................................. 3
2.1 ETX®-DC .................................................................................................................................................. 3
2.2 ETX® Documentation ................................................................................................................................. 3
2.3 ETX® Benefits........................................................................................................................................... 3
3Specifications................................................................................ 5
3.1 Functional Specifications............................................................................................................................ 5
3.2 Available Modules ..................................................................................................................................... 6
3.3 Block Diagram .......................................................................................................................................... 7
3.4 Mechanical Specifications ........................................................................................................................... 8
3.5 Electrical Specifications.............................................................................................................................. 8
3.6 Environmental Specifications ...................................................................................................................... 9
3.7 MTBF..................................................................................................................................................... 10
4ETX® Connectors...........................................................................11
4.1 Connector Locations ................................................................................................................................ 11
4.2 General Signal Description ........................................................................................................................ 11
4.3 Connector X1 (PCI bus, USB, Audio) ............................................................................................................ 12
4.3.1 Connector X1 Signal Levels ...................................................................................................................... 13
4.3.2 Connector X1 Signal Description ............................................................................................................... 15
4.4 Connector X2 (ISA Bus) ............................................................................................................................ 16
4.4.1 Connector X2 Signal Levels ...................................................................................................................... 17
4.4.2 Connector X2 Signal Description ............................................................................................................... 19
4.5 Connector X3 (VGA, LCD, Video, COM1 and COM2, LPT/Floppy, Mouse, Keyboard) ................................................. 20
4.5.1 Alternative pinning ................................................................................................................................ 20
4.5.2 Connector X3 (Signal Levels).................................................................................................................... 22

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4.6 Connector X3 Signal Description................................................................................................................. 24
4.7 Connector X4 Subsystems.......................................................................................................................... 26
4.7.1 Connector X4 (IDE 1, IDE 2, Ethernet, Miscellaneous) ................................................................................... 26
4.7.2 Connector X4 (Signal Levels).................................................................................................................... 27
4.7.3 Connector X4 Signal Description ............................................................................................................... 29
4.8 SDVO Connector J9 .................................................................................................................................. 31
4.8.1 Location of the connector........................................................................................................................ 31
4.8.2 SDVO Output ......................................................................................................................................... 31
4.8.3 Connector and Flat Foil Cable ................................................................................................................... 32
4.8.4 Software Requirements ........................................................................................................................... 32
4.8.5 Pinout Feature Connector J9 .................................................................................................................... 33
5Special Features............................................................................34
5.1 Watchdog Timer ...................................................................................................................................... 34
5.2 SATA Support.......................................................................................................................................... 34
5.3 Restrictions............................................................................................................................................ 34
5.3.1 ISA Bus ................................................................................................................................................ 34
5.3.2 ISA VGA................................................................................................................................................ 34
5.3.3 LVDS.................................................................................................................................................... 34
6Design Considerations ....................................................................35
6.1 Thermal Management............................................................................................................................... 35
6.2 Heat spreader......................................................................................................................................... 36
6.3 ETX-DC® onboard fan connector................................................................................................................. 36
6.3.1 Schematic of fan control.......................................................................................................................... 36
6.3.2 Location and Pinout of fan connector J8..................................................................................................... 37
7Important Technology Information....................................................38
7.1 I/O APIC vs 8259 PIC Interrupt mode ........................................................................................................... 38
7.1.1 Method of interrupts transmission............................................................................................................. 38
7.1.2 Interrupt priority ................................................................................................................................... 38
7.1.3 More interrupts ..................................................................................................................................... 38
7.2 Thermal Monitor and Catastrophic Thermal Protection .................................................................................... 38
7.3 ACPI Suspend Modes and Resume Events...................................................................................................... 38
8System Resources ..........................................................................40
8.1 Interrupt Request (IRQ) Lines .................................................................................................................... 40
8.1.1 In 8259 PIC mode................................................................................................................................... 40
8.1.2 In APIC mode ........................................................................................................................................ 41
8.1.3 Direct Memory Access (DMA) Channels ....................................................................................................... 41

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8.2 Memory Area .......................................................................................................................................... 42
8.3 I/O Address Map...................................................................................................................................... 42
8.4 Peripheral Component Interconnect (PCI) Devices ......................................................................................... 42
8.5 Inter-IC (I2C) Bus.................................................................................................................................... 42
8.6 System Management (SM) Bus ................................................................................................................... 42
8.7 JILI-I2C Bus ........................................................................................................................................... 43
8.8 K-Station / JIDA32 resources..................................................................................................................... 43
8.8.1 I2C...................................................................................................................................................... 43
8.8.2 Storage................................................................................................................................................ 43
8.8.3 GPIO.................................................................................................................................................... 43
8.8.4 Hardware Monitor .................................................................................................................................. 43
9BIOS Operation .............................................................................44
9.1 Determining the BIOS Version.................................................................................................................... 44
9.2 Setup Guide............................................................................................................................................ 44
9.3 BIOS Setup Menus ................................................................................................................................... 46
9.3.1 Main Menu............................................................................................................................................ 46
9.3.2 Module Info .......................................................................................................................................... 46
9.3.3 Advanced Menu ..................................................................................................................................... 48
9.3.4 Boot Menu............................................................................................................................................ 66
9.3.5 Security Menu ....................................................................................................................................... 68
9.3.6 Chipset Configuration Menu ..................................................................................................................... 68
9.3.7 Exit Menu ............................................................................................................................................. 74
10 Appendix A: JIDA Standard..............................................................75
10.1 JIDA Information .................................................................................................................................... 75
11 Appendix B: PC Architecture Information............................................76
11.1 Buses.................................................................................................................................................... 76
11.1.1 ISA, Standard PS/2 –Connectors .......................................................................................................... 76
11.1.2 PCI/104 ........................................................................................................................................... 76
11.1.3 PCI.................................................................................................................................................. 76
11.2 General PC Architecture ............................................................................................................................ 76
11.3 Ports..................................................................................................................................................... 77
11.3.1 RS-232 Serial .................................................................................................................................... 77
11.3.2 Serial ATA......................................................................................................................................... 77
11.3.3 USB................................................................................................................................................. 77
11.4 Programming.......................................................................................................................................... 77
12 Revision History ............................................................................78

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ETX-DC®/ User Information
1
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.

ETX-DC®/ User Information
2
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.
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 http://www.kontron.com/support for the latest product documentation, utilities, drivers
and support contacts. Consult our customer section http://emdcustomersection.kontron.com for the latest BIOS
downloads, Product Change Notifications and additional tools and software. In any case you can always contact your
board supplier for technical support.

ETX-DC®/ Introduction
3
2Introduction
2.1 ETX®-DC
ETX®-DC is the latest 'Computer On Module' based on ETX® 3.0 standard. The new ETX®-DC module is based on the
Intel® Navy Pier platform with the ATOM® processor N270, the northbridge 945GSE and the southbridge ICH-7M.
ETX®-DC 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 Ultra 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.
There are 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®-DC. 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.
2.3 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

ETX-DC®/ Introduction
4
»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.

ETX-DC®/ Specifications
5
3Specifications
3.1 Functional Specifications
Processor: Intel® ATOM™ N270
»Cache: 512MB L2
»Clock Frequency: 1.6 GHz
Northbridge: Intel® 945GSE
»Memory: One DDR2 533 SODIMM up to 2048 MB
»Integrated Graphic: Intel® GMA950 with dual independent display support
Southbridge: Intel® ICH7M
»SATA: 2 Channels Serial ATA to extra connectors
»IDE: 1 Channel UDMA-100
»PCI-Bus: 32-bit/33Mhz
»USB: 4 Channels Universal Serial Bus (USB 2.0; UHCI/EHCI)
10/100MB Ethernet: Phy Intel® 82562V
»Fully compatible with IEEE 802.3
Onboard video graphics array (VGA): Intel® GMA950:
»Intel® Gen 3.5 Graphics engine
»Dynamic Video Memory Technology (DVMT 3.0)
»Cathode ray tube (CRT) up do QXGA
»low voltage differential signaling (LVDS) liquid-crystal display (LCD) in 18bit only with option to support
VESA 24 bit mapping
»interfaces up to UXGA
»SDVO
»Supports DX 9.0c
AC ’97 (Audio): Intel 945GSE;
»Up to 20 bit sample resolution
»Multiple sample rates up to 48bit
»Independent bus master logic for dual Microphone Input, dual PCM audio input, PCM audio input, modem
input, modem output and S/PDIF output.

ETX-DC®/ Specifications
6
Trustes Platform Module (TPM)
»Can be equipped optionally
Super I/O: WINBOND W83627DHG-P 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
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
3.2 Available Modules
Product No
Productdescription
Supported LVDS displays
18039-0000-16-2
ETX-DC Standard
18bit and 24 bit oLDI (18 bit + dithering)
18039-0000-16-4
ETX-DC with 24 bit VESA mapping
24 bit VESA only (18 bit + dithering)

ETX-DC®/ Specifications
7
3.3 Block Diagram
CPU
N270
Diamondville
North Bridge
Intel 82945 GSE
South Bridge
Intel 82801 GBM
(ICH 7M)
X3 X1
X2
AGP VGA
Controller
Ethernet
MAC/PHY
Intel 82562V
HDA
Codec
ALC888
PCI to ISA
Bridge
ITE8888
Super I/O
Controller
Winbond
W83627HF
SPI
BIOS
Flash
I2C
CRT
LCD (JILI)
Ethernet
SMB
Floppy / LPT
PS/2
Serial/IrDA
HDA
SDVO Connector
SDVO
PCI
ISA
x2 DMI
LPC SPI
USB 0-3
FAN
Connector J8
FSB533
X4
IDE
DDR-
SDRAM
DDR 533
ETX-DC
Serial IRQ
Watchdog
EEPROM
(CMOS
Setup Data)
RTC
LPC
LPC to ISA
Bridge
F85226FG ISA
USB 4;5
USB
Connectors
J5;J6
SATA
SATA
Connectors
J3;J4
PCIe to
PATA
JMB368 PCIe
IDE
24 bit VESA
mapping
enabler

ETX-DC®/ Specifications
8
3.4 Mechanical Specifications
Dimensions
»95.0 mm x 114.0 mm (3.75” x 4.5”)
»Height approx. 12 mm (0.4”)
3.5 Electrical Specifications
Supply Voltage
»VCC: 5V DC +/- 5%
»5V_Stb: 5V DC +/- 5% but always equal or lower VCC
Note: It is recommended to follow the ATX specification for voltage rise times which claims: "The output voltage
shall rise from ≤ 10% of nominal to within the regulation ranges … within 0.1ms to 20ms".
Supply Voltage Ripple
»Maximum 100 mV peak to peak 0 –20 MHz
Supply Current 5 V_SB
»Typical 50 mA, peak up to 350 mA (S3)
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.
CPU Clock
Mode
Power Consumption
1600 MHz
Full On
2.04 A
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-DC®/ Specifications
9
Mode
[A] 5V
[A] 5VSB
[W]
Full Load
2,42
0,07
12,43
Idle
1,87
0,04
9,53
Idle with C1E/EIST
1,78
0,04
9,11
Standby S1
1,41
0,03
7,18
Standby S3
0,00
0,235
1,18
Soft Off S5
-
0,29
1,44
3.6 Environmental Specifications
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
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
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.
Humidity
»Operating: 10% to 90% (non condensing)
»Non operating: 5% to 95% (non condensing)

ETX-DC®/ Specifications
10
3.7 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): 176102 @ 40°C
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.

ETX-DC®/ ETX® Connectors
11
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)
X1
X2
X4
X3
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

ETX-DC®/ ETX® Connectors
12
4.3 Connector X1 (PCI bus, USB, Audio)
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1
GND
2
GND
51
VCC *
52
VCC *
3
PCICLK3
4
PCICLK4
53
PAR
54
SERR#
5
GND
6
GND
55
GPERR#
56
RESERVED
7
PCICLK1
8
PCICLK2
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
AUXAL
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

ETX-DC®/ ETX® Connectors
13
4.3.1 Connector X1 Signal Levels
Pin 1-50 [Power |PCI |USB | AUDIO]
Pin
Signal
Description
Type
Termination
Comment
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 Request 3
I-3,3
PU 8k2 3.3V
8k2 Ohm Resistors
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 Request 2
I-3,3
PU 8k2 3.3V
8k2 Ohm Resistors
14
GNT1#
PCI Bus Grant 1
O-3,3
-
-
15
REQ1#
PCI Bus Request 1
I-3,3
PU 8k2 3.3V
8k2 Ohm Resistors
16
3V
Power +3,3V
PWR
-
-
17
GNT0#
PCI Bus Grant 0
O-3,3
-
-
18
nc
-
nc
-
Reserved
19
VCC
Power +5V
PWR
-
-
20
VCC
Power +5V
PWR
-
-
21
SERIRQ
Serial Interrupt Reqest
IO-3,3
PU 8k2
12mA Source sink
22
REQ0#
PCI Bus Request 0
I-3,3
PU 8k2 3.3V
8k2 Ohm Resistors
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 Byte 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
AUXAL
Auxiliary Line Input Left
I
PD 4k7 ASGND
1:2 bleeder
39
AD11
PCI Adress & Data Bus line
IO-3,3
-
-
40
MIC
Microphone Input
I
-
-
41
AD12
PCI Adress & Data Bus line
IO-3,3
-
-
42
AUXAR
Auxiliary Line Input Right
I
PD 4k7 ASGND
1:2 bleeder
43
AD13
PCI Adress & Data Bus line
IO-3,3
-
-
44
ASVCC
Analog Supply of Sound Controller
O-5
-
-
45
AD14
PCI Adress & Data Bus line
IO-3,3
-
-
46
SNDL
Audio Out Left
O
-
-
47
AD15
PCI Adress & Data Bus line
IO-3,3
-
-
48
ASGND
Analog Ground of Sound Controller
P
-
-
49
CBE1#
PCI Bus Command and Byte enables 1
IO-3,3
-
-
50
SNDR
Audio Out Right
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.

ETX-DC®/ ETX® Connectors
14
Pin 51–100: [Power | PCI |USB | AUDIO]
Pin
Signal
Description
Type
Termination
Comment
51
VCC
Power +5V
PWR
-
-
52
VCC
Power +5V
PWR
-
-
53
PAR
PCI Bus Parity
IO-3,3
-
-
54
SERR#
PCI Bus System Error
IO-3,3
PU 8k2 3,3V
-
55
GPERR#
PCI Bus Grant Error
IO-3,3
PU 8k2 3,3V
-
56
nc
-
nc
-
Reserved
57
PME#
PCI Power Management Event
IO-3,3
-
int. PU 10k 3,3V
58
USB2#
USB Data- , Port2
IO-3,3
-
int. PD 15k in ICH7
59
LOCK#
PCI Bus Lock
IO-3,3
PU 8k2 3,3V
-
60
DEVSEL#
PCI Bus Device Select
IO-3,3
PU 8k2 3,3V
-
61
TRDY#
PCI Bus Target Ready
IO-3,3
PU 8k2 3,3V
-
62
USB3#
USB Data- , Port3
IO-3,3
-
int. PD 15k in ICH7
63
IRDY#
PCI Bus Initiator Ready
IO-3,3
PU 8k2 3,3V
-
64
STOP#
PCI Bus Stop
IO-3,3
PU 8k2 3,3V
-
65
FRAME#
PCI Bus Cycle Frame
IO-3,3
PU 8k2 3,3V
-
66
USB2
USB Data+ , Port2
IO-3,3
-
int. PD 15k in ICH7
67
GND
Ground
PWR
-
-
68
GND
Ground
PWR
-
-
69
AD16
PCI Adress & Data Bus line
IO-3,3
-
-
70
CBE2#
PCI Bus Command and Byte enables 2
IO-3,3
-
-
71
AD17
PCI Adress & Data Bus line
IO-3,3
-
-
72
USB3
USB Data+ , Port3
IO-3,3
-
int. PD 15k in ICH7
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
-
int. PD 15k in ICH7
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
-
int. PD 15k in ICH7
81
AD24
PCI Adress & Data Bus line
IO-3,3
-
-
82
CBE3#
PCI Command and Byte 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
-
int. PD 15k in ICH7
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
-
int. PD 15k in ICH7
93
PCIRST#
PCI Bus Reset
O-3,3
-
PD 100k
94
AD31
PCI Adress & Data Bus line
IO-3,3
-
-
95
INTC#
PCI BUS Interrupt Request C
I-3,3
PU 8k2 3,3V
-
96
INTD#
PCI BUS Interrupt Request D
I-3,3
PU 8k2 3,3V
-
97
INTA#
PCI BUS Interrupt Request A
I-3,3
PU 8k2 3,3V
-
98
INTB#
PCI BUS Interrupt Request B
I-3,3
PU 8k2 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.