Mini-ITX EMB-6908T
EMB-6908T
AMD AthlonTM 64/ Athlon 64 x2
(AM2 Socket) Processor,
Mini-ITX
®
Intel
82573L, Dual Gigabit Ethernet
PCI-E［x1］x 2 (optional)/
PCI/ Mini PCI/ HD 5.1CH Audio
EMB-6908T Manual Rev.A 1st Ed.
February 2009
Mini-ITX EMB-6908T
Copyright Notice
This document is copyrighted, 2009. All rights are reserved. The
original manufacturer reserves the right to make improvements to
the products described in this manual at any time without notice.
No part of this manual may be reproduced, copied, translated, or
transmitted in any form or by any means without the prior written
permission of the original manufacturer. Information provided in
this manual is intended to be accurate and reliable. However, the
original manufacturer assumes no responsibility for its use, or for
any infringements upon the rights of third parties that may result
from its use.
The material in this document is for product information only and
is subject to change without notice. While reasonable efforts have
been made in the preparation of this document to assure its
accuracy, AAEON assumes no liabilities resulting from errors or
omissions in this document, or from the use of the information
contained herein.
AAEON reserves the right to make changes in the product design
without notice to its users.
i
Mini-ITX EMB-6908T
Acknowledgments
All other products’ name or trademarks are properties of their
respective owners.
CompactFlash
Association.
AMD, the AMD Arrow logo and combinations thereof are
trademarks of Advanced Micro Devices, Inc.
Microsoft Windows
Corp.
Please be notified that all other products’ name or
trademarks not be mentioned above are properties of their
respective owners.
™ is a trademark of the Compact Flash
®
is a registered trademark of Microsoft
ii
Mini-ITX EMB-6908T
Packing List
Before you begin installing your card, please make sure that
the following materials have been shipped:
1 1701400453 IDE Cable
1 1709070500 Serial ATA Cable
1 1702150150 Serial ATA Power Cable
1 9657666600 Jumper Cap
1 M206908T00 I/O Shield, DVI + VGA Type
1 Quick Installation Guide
1 Utility DVD
1 EMB-6908T
If any of these items should be missing or damaged, please
contact your distributor or sales representative immediately.
iii
Mini-ITX EMB-6908T
Contents
Chapter 1 General Information
1.1 Introduction...................................................................1-2
1.2 Features........................................................................1-3
1.3 Specifications................................................................1-4
Chapter 2 Quick Installation Guide
2.1 Safety Precautions ......................................................2-2
2.2 Location of Connectors and Jumpers .........................2-3
2.3 Mechanical Drawing ....................................................2-5
2.4 List of Jumpers ............................................................2-7
2.5 List of Connectors.........................................................2-8
2.6 Setting Jumpers ........................................................2-10
2.7 COM2 Ring/ +5V/+12V Selection (JP2)......................2-11
2.8 LVDS-LCD Voltage Selection (JP3) ...........................2-11
2.9 LCD INVERTER Voltage Selection (JP3)...................2-11
2.10 Simulate AT Selection (JP4) ...................................2-11
2.11 Clear CMOS (JP5)....................................................2-11
2.12 CRT Connector (CN1)..............................................2-11
2.13 COM1/ COM2 RS-232 Serial Port Connector (CN2)2-12
2.14 Audio Connector Line-IN/ Line-OUT/ Mic-IN (CN3)..2-13
2.15 PS2 Keyboard/ Mouse Connector (CN4) .................2-13
2.16 Audio 5.1 Channel / SPDIF Connector (CN5)..........2-13
rd
2.17 3
Connector (2) (CN6) ........................................................2-14
USB Connector/ 10/100/1000Base-TX Ethernet
iv
Mini-ITX EMB-6908T
st
2.18 1
USB Connector/ 10/100/1000Base-TX Ethernet
Connector (1) (CN7) .........................................................2-14
2.19 Audio Speak Out Connector (CN9) ..........................2-15
2.20 Internal Keyboard Connector (CN10).......................2-15
2.21 CD-IN Connector (CN11) ........................................2-15
2.22 LVDS-LCD Connector (CN12)..................................2-15
2.23 LCD Inverter Connector (CN13)...............................2-16
2.24 Internal Mouse Connector (CN14)............................2-16
2.25 Front Panel Connector (CN15).................................2-16
2.26 Fan 1 Connector (CN16) ..........................................2-17
2.27 3rd Serial ATA Connector (CN17)............................2-17
2.28 4th Serial ATA Connector (CN20) ............................2-17
2.29 2nd Serial ATA Connector (CN21) ...........................2-18
2.30 External RTC Connector (CN22)..............................2-18
2.31 ATX Power Connector (CN23) .................................2-18
2.32 1st Serial ATA Connector (CN25).............................2-19
2.33 PCI-Express Connector (CN26) ...............................2-19
2.34 5th USB Connector (CN27)......................................2-20
2.35 4th USB Connector (CN28)......................................2-21
2.36 2nd USB Connector (CN29).....................................2-21
2.37 COM6 RS-232 Serial Port Connector (CN30)..........2-21
2.38 COM5 RS-232 Serial Port Connector (CN31)..........2-22
2.39 COM3 RS-232 Serial Port Connector (CN32)..........2-22
2.40 COM4 RS-232 Serial Port Connector (CN33)..........2-22
2.41 IrDA Connector (CN34) ............................................2-22
v
Mini-ITX EMB-6908T
2.42 Fan2 Connector (CN35) ...........................................2-23
2.43 LPT Port Connector (CN36) .....................................2-23
2.44 Digital I/O Connector (CN37, CN38).........................2-24
Chapter 3 Award BIOS Setup
3.1 System Test and Initialization.......................................3-2
3.2 Award BIOS Setup........................................................3-3
Chapter 4 Driver Installation
4.1 Installation.....................................................................4-3
Appendix A Programming The Watchdog Timer
A.1 Programming................................................................A-2
A.2 IT8712 Watchdog Timer Initial Program ......................A-6
Appendix B I/O Information
B.1 I/O Address Map...........................................................B-2
B.2 Memory Address Map ..................................................B-4
B.3 IRQ Mapping Chart.......................................................B-5
B.4 DMA Channel Assignments .........................................B-5
Appendix C Mating Connector
C.1 List of Mating Connectors and Cables........................C-2
vi
Mini-ITX EMB-6908T
Chapter
1
General
Information
Chapter 1 General Information 1- 1
Mini-ITX EMB-6908T
1.1 Introduction
The EMB-6908T adopts the latest AMD Athlon (AM2 Socket)
processor and AMD M690T+ SB600 chipset for a lower power
consumption and higher performance solution. EMB-6908T
utilizes two DDRII 240-pin DIMM system memory that supports
ECC dual-channel DDRII 533/667 up to 4GB. It is the latest
embedded motherboard designed to cope with increasingly
heavily worked-loaded embedded systems, such as digital
signage, POS (Point of Sales) machines, banking machine,
medical instruments, gaming machine, and etc.
The EMB-6908T accommodates two optional PCI-Express［x1］
slots, one PCI slot and one Mini PCI slot for a flexible expansion.
Moreover, it supports various storages including one EIDE, and
four SATA ports. The I/O expansion of EMB-6908T features
six COM ports, 10 USB2.0, one Parallel port, one DVI-I port,
two Gigabit Ethernet ports, and HD 5.1CH Audio th at are enable
for expanding system functions.
The EMB-6908T provides numerous features fo r the embedded
systems and will be the best solution for your complicated
applications.
Chapter 1 General Information 1-2
Mini-ITX EMB-6908T
1.2 Features
AMD Athlon 64/ Athlon 64 x2 (AM2 Socket) Processors
AMD 690E + SB600
ECC Dual-channel DDRII 533/667 Memory, Up To 4GB
Gigabit Ethernet x 2
CRT, Up to 24-bit Dual-channel LVDS LCD, DVI
HD 5.1CH Audio
EIDE x 1, SATA x 4
COM x 6, USB2.0 x 10, 16-bit Digital I/O
PCI x 1, Mini PCI x 1, PCI-E [x1] x 2 in PCI-E [x4] Slot
(Through Riser Card)
TPM 1.2 (Optional)
ATX
Chapter 1 General Information
1-3
Mini-ITX EMB-6908T
1.3 Specifications
System
Processor AMD Athlon
TM
64/ AthlonTM
64 x2 (AM2 Socket)
Processors (Low Power
Version Only: Athlon 2000+,
Athlon 2600+, Athlon 3400e)
System Memory 240-pin DDRII DIMM Socket
x 2, total up to 4GB (DDRII
533/667), supports ECC
function
Chipset AMD M690E + SB600
I/O Chipset ITE IT8712F-A/IX-L
Ethernet Intel
®
82573L,
10/100/1000Base-TX,
RJ-45 x 2
BIOS Award
Watchdog Timer
Wake on LAN
H/W Status Monitoring Supports power supply
ITE IT8712F-A/IX-L
Yes
voltages, fan speed and
temperature monitoring
Power Requirement
Power Consumption
Chapter 1 General Information 1-4
ATX
3000+ 1.8GHz, DDRII 533
Mini-ITX EMB-6908T
(Typical) 1GB; 3.19A @ +12V, 2.78A
@ +5V
Board Size
Gross Weight 1.32lb (0.6kg)
Operating Temperature
Storage Temperature
Operating Humidity
6.7”(L) x 6.7”(W) (170 mm x
170 mm)
32˚F~ 140˚F (0˚C ~ 60˚C)
-40˚F~ 176˚F (-40˚C ~ 80˚C)
0%~90% relative humidity,
non-condensing
MTBF (Hours) 90,000
Display: Supports LCD/CRT, LCD/DVI, CRT/DVI Simultaneous/Dual View Display
Chipset AMD M690T integrated
Memory
Resolution
Shared system memory up to
256MB
CRT: up to 2560 x 1440 @
75Hz;
LCD: up to 2048 x 1536
(QXGA);
Single Link DVI: up to 1600 x
1200 @ 60Hz with pixel clock
162MHz; up to 1920 x 1200 @
60Hz with pixel clock 154MHz;
Dual-Link DVI: up to 2560 x
Chapter 1 General Information
1-5
Mini-ITX EMB-6908T
1600 @ 60Hz with pixel clock
LCD Interface
Side Port
268MHz
Up to 24-bit dual-channel LVDS
1 x 16-bit memory interface,
supports up to 128MB DDRII
800 memory
(TF-EMB-6908T-A12-01 only)
I/O
Storage
Serial Port
Parallel Port SPP/ EPP/ ECP mode
USB USB2.0 x 10
PS/2 Port Keyboard x 1, Mouse x 1
Digital I/O Supports 16-bit (Programmable)
IrDA One IrDA Tx/Rx header
Audio 5.1CH audio
EIDE x 1 (one device), SATA x 4
RS-232 x 5, RS-232/422/485 x 1
Chapter 1 General Information 1-6
Mini-ITX EMB-6908T
d
f
r
r
e
p
Chapter
2
Quick
Installation
Guide
Part No. 2007690810 Printed in Taiwan February 2009
The Quick Installation Guide is derive
rom Chapter 2 of user manual. For othe
chapters and further installation
instructions, please refer to the use
manual CD-ROM that came with th
roduct.
Chapter 2 Quick Installation Guide 2 - 1
Notice:
Mini-ITX EMB-6908T
2.1 Safety Precautions
Always completely disconnect the power cord
from your board whenever you are working on
it. Do not make connections while the power is
on, because a sudden rush of power can
damage sensitive electronic components.
Always ground yourself to remove any static
charge before touching the board. Modern
electronic devices are very sensitive to static
electric charges. Use a grounding wrist strap at
all times. Place all electronic components on a
static-dissipative surface or in a static-shielded
bag when they are not in the chassis
Chapter 2 Quick Installation Guide 2 - 2
Mini-ITX EMB-6908T
2.2 Location of Connectors and Jumpers
Locating Connectors and Jumpers (Component Side)
Chapter 2 Quick Installation Guide 2 - 3
Mini-ITX EMB-6908T
Locating Connectors and Jumpers (Solder Side)
Chapter 2 Quick Installation Guide 2 - 4
Mini-ITX EMB-6908T
2.3 Mechanical Drawing
Component Side
Chapter 2 Quick Installation Guide 2 - 5
Solder Side
Mini-ITX EMB-6908T
Chapter 2 Quick Installation Guide 2 - 6
Mini-ITX EMB-6908T
2.4 List of Jumpers
The board has a number of jumpers that allow you to configure
your system to suit your application.
The table below shows the function of each of the board's
jumpers:
Label Function
JP2 COM2 Ring/+5V/+12V Selection
JP3
JP4 Simulate AT Selection
JP5 Clear CMOS
LVDS-LCD Voltage/ LCD INVERTER Voltage
Selection
Chapter 2 Quick Installation Guide 2 - 7
Mini-ITX EMB-6908T
2.5 List of Connectors
The board has a number of connectors that allow you to
configure your system to suit your application.
The table below shows the function of each of the board's
connectors:
Connectors
Label Function
CN1 CRT / DVI Connector
CN2
CN3 Audio Connector
CN4 PS/2 Keyboard / Mouse Connector
CN5 Audio 5.1 Channel / SPDIF Connector
CN6
CN7
CN9 Audio Speak Out Connector
CN10 Internal Keyboard Connector
CN11 CD-IN Connector
CN12 LVDS-LCD Connector for 24/48-bit
CN13 LCD Inverter Connector
CN14 Internal Mouse Connector
CN15 Front Panel Connector
CN16 Fan1 Connector
CN17 3rd Serial ATA Connector
COM1 RS-232 & COM2 RS-232/422/485 Serial Port
Connector
3rd USB Connector
10/100/1000Base-TX Ethernet Connector (2)
1st USB Connector
10/100/1000Base-TX Ethernet Connector (1)
Chapter 2 Quick Installation Guide 2 - 8
Mini-ITX EMB-6908T
CN18 DDRII DIMM Slot
CN19 DDRII DIMM Slot
CN20 4th Serial ATA Connector
CN21 2nd Serial ATA Connector
CN22 External RTC Connector
CN23 ATX Power Connector
CN25 1st Serial ATA Connector
CN26 PCI-Express Slot
CN27 5th USB Connector
CN28 4th USB Connector
CN29 2nd USB Connector
CN30 COM6 RS-232 Serial Port Connector
CN31 COM5 RS-232 Serial Port Connector
CN32 COM3 RS-232 Serial Port Connector
CN33 COM4 RS-232 Serial Port Connector
CN34 IrDA Connector
CN35 Fan2 Connector
CN36 LPT Port Connector
CN37 Digital I/O Connector (1)
CN38 Digital I/O Connector (2)
CFD1 CompactFlash Slot
MINIPCI1 Mini-PCI Slot
IDE1 IDE Connector
PCI1 PCI Slot
Chapter 2 Quick Installation Guide 2 - 9
Mini-ITX EMB-6908T
2.6 Setting Jumpers
You configure your card to match the needs of your application by
setting jumpers. A jumper is the simplest kind of electric switch. It
consists of two metal pins and a small metal clip (often protected by a
plastic cover) that slides over the pins to connect them. To “close” a
jumper you connect the pins with the clip.
To “open” a jumper you remove the clip. Sometimes a jumper will
have three pins, labeled 1, 2 and 3. In this case you would connect
either pins 1 and 2 or 2 and 3.
3
2
1
Open Closed Closed 2-3
A pair of needle-nose pliers may be helpful when working with
jumpers.
If you have any doubts about the best hardware configuration for your
application, contact your local distributor or sales representative
before you make any change.
Generally, you simply need a standard cable to make most
connections.
Chapter 2 Quick Installation Guide 2 - 10
Mini-ITX EMB-6908T
2.7 COM2 Ring/+5V/+12V Selection (JP2)
JP2 Function
1-2 +12V
3-4 +5V
5-6 Ring (Default)
2.8 LVDS-LCD Voltage Selection (JP3)
JP3 Function
1-3 +5V
3-5 +3.3V (Default)
2.9 LCD INVERTER Voltage Selection (JP3)
JP3 Function
2-4 +5V(Default)
4-6 +12V
2.10 Simulate AT Selection (JP4)
JP4 Function
1-2 AT
2.11 Clear CMOS (JP5)
JP5 Function
1-2 Protected (Default)
2-3 Clear
2.12 CRT/ DVI Connector (CN1)
Pin Signal Pin Signal
1 DVI_TD2# 2 DVI_TD2
3 GND 4 DVI_TD4#
5 DVI_TD4 6 DVI_I2C_CLK
Chapter 2 Quick Installation Guide 2 - 11
Mini-ITX EMB-6908T
7 DVI_DDC_DATA 8 CRT_VSYNC
9 DVI_TD1# 10 DVI_TD1
11 GND 12 DVI_TD3#
13 DVI_TD3 14 +5V
15 GND 16 HPDET#
17 DVI_TD0# 18 DVI_TD0
19 GND 20 DVI_TD5#
21 DVI_TD5 22 GND
23 DVI_TDC 24 DVI_TDC#
25 GND 26 GND
27 GND 28 GND
29 _DDC_SCLK 30 NC
31 +5V 32 HSYNC
33 GREEN 34 GND
35 NC 36 GND
37 CRT_PLUG# 38 VSYNC
39 BLUE 40 GND
41 DDC_SDATA 42 RED
43 GND
2.13 COM1/COM2 RS-232 Serial Port Connector (CN2)
Pin Signal Pin Signal
1 DCD1 2 RXD1
3 TXD1 4 DTR1
5 GND1 6 DSR1
7 RTS1 8 CTS1
9 RI1 10
11 RXD2(422RXD+) 12
13 DTR2(422RXD-) 14 GND
Chapter 2 Quick Installation Guide 2 - 12
DCD2(422TXD-/485DATA-)
TXD2(422TXD+/485DATA+)
Mini-ITX EMB-6908T
15 DSR2 16 RTS2
17 CTS2 18 RI2/+5V/+12V
2.14 Audio Connector Line-IN/Line-OUT/Mic-IN (CN3)
Pin Signal Pin Signal
A1 LINEIN_L A2 GND
A3 LINE_JD A4 LINEIN_R
B1 LINEOUT_L B2 GND
B3 FRONT_JD B4 LINEOUT_R
C1 MIC_L C2 GND
C3 MIC_JD C4 MIC_R
2.15 PS/2 Keyboard / Mouse Connector (CN4)
Pin Signal Pin Signal
1 KDAT 2 NC
3 GND 4 +KB_VCC
5 KCLK 6 NC
7 MDAT 8 NC
9 GND 10 +KB_VCC
11 MCLK 12 NC
2.16 Audio 5.1 Channel / SPDIF Connector (CN5)
Pin Signal Pin Signal
1 Front-OUT-R 2 GND
3 Front-OUT-L 4 GND
5 Surr-OUT-R 6 GND
7 Surr-OUT-L 8 GND
9 LFE-OUT 10 GND
11 CNE-OUT 12 GND
Chapter 2 Quick Installation Guide 2 - 13
Mini-ITX EMB-6908T
13 SPDIF-OUT 14 SPDIF-IN
Note:
For supporting Audio 7.1 CH, you have to plug CN5& CN3 synchronized.
2.17 3rd USB Connector/ 10/100/1000Base-TX Ethernet Conn ector
(2) (CN6)
Pin Signal Pin Signal
1 LAN2_TCT 2 LAN2_MDI0+
3 LAN2_MDI0- 4 LAN2_MDI1+
5 LAN2_MDI1- 6 LAN2_MDI2+
7 LAN2_MDI2- 8 LAN2_MDI3+
9 LAN2_MDI3- 10 LAN2_RCT
11 LAN2_Active- 12 LAN2_Active+
13 LAN2_S100LED 14 LAN2_S1000LED
19 +5V 20 USBD521 USBD5+ 22 GND
23 +5V 24 USBD425 USBD4+ 26 GND
2.18 1st USB Connector/ 10/100/1000Base-TX Ethernet Connector
(1) (CN7)
Pin Signal Pin Signal
1 LAN1_TCT 2 LAN1_MDI0+
3 LAN1_MDI0- 4 LAN1_MDI1+
5 LAN1_MDI1- 6 LAN1_MDI2+
7 LAN1_MDI2- 8 LAN1_MDI3+
9 LAN1_MDI3- 10 LAN1_RCT
11 LAN1_Active- 12 LAN1_Active+
13 LAN1_S100LED 14 LAN1_S1000LED
19 +5V 20 USBD0-
Chapter 2 Quick Installation Guide 2 - 14
Mini-ITX EMB-6908T
21 USBD0+ 22 GND
23 +5V 24 USBD125 USBD1+ 26 GND
2.19 Audio Speak Out Connector (CN9)
Pin Signal Pin Signal
1 SPK_R+ 2 SPK_R3 SPK_L+ 4 SPK_L-
2.20 Internal Keyboard Connector (CN10)
Pin Signal
1 KB_CLK
2 KB_DATA
3 NC
4 GND
5 +5V
2.21 CD-IN Connector (CN11 )
Pin Signal
1 CD_IN_L
2 CD_GND
3 CD_GND
4 CD_IN_R
2.22 LVDS-LCD Connector (CN12)
Pin Signal Pin Signal
1 ENBKL 2 NC
3 PPVCC 4 GND
5 LVDS1_TXCLK- 6 LVDS1_TXCLK+
7 PPVCC 8 GND
Chapter 2 Quick Installation Guide 2 - 15
Mini-ITX EMB-6908T
9 LVDS1_TX0- 10 LVDS1_TX0+
11 LVDS1_TX1- 12 LVDS1_TX1+
13 LVDS1_TX2- 14 LVDS1_TX2+
15 LVDS1_TX3- 16 LVDS1_TX3+
17 I2C_DATA 18 I2C_CLK
19 LVDS2_TX0- 20 LVDS2_TX0+
21 LVDS2_TX1- 22 LVDS2_TX1+
23 LVDS2_TX2- 24 LVDS2_TX2+
25 LVDS2_TX3- 26 LVDS2_TX3+
27 PPVCC 28 GND
29 LVDS2_TXCLK- 30 LVDS2_TXCLK+
2.23 LCD Inverter Connector (CN13)
Pin Signal
1 +5V/+12V
2 Adjust backlight
3 GND
4 GND
5 ENBKL
2.24 Internal Mouse Connector (CN14)
Pin Signal
1 MS_CLK
2 MS_DATA
3 GND
4 +5V
2.25 Front Panel Connector (CN15)
Pin Signal Pin Signal
1 Power On Button (-) 2 Power On Button (+)
Chapter 2 Quick Installation Guide 2 - 16
Mini-ITX EMB-6908T
3 IDE LED (-) 4 IDE LED (+)
5 External Buzzer (-) 6 External Buzzer (+)
7 Power LED (-) 8 Power LED (+)
9 Reset Switch (-) 10 Reset Switch (+)
2.26 Fan1 Connector (CN16)
Pin Signal
1 GND
2 +12V
3 Speed Sense
4 Speed Control
2.27 3rd Serial ATA Connector (CN17)
Pin Signal
1 GND
2 SATA_TX2+
3 SATA_TX24 GND
5 SATA_RX26 SATA_RX2+
7 GND
8 GND
9 GND
2.28 4th Serial ATA Connector (CN20)
Pin Signal
1 GND
2 SATA_TX3+
3 SATA_TX3-
Chapter 2 Quick Installation Guide 2 - 17
Mini-ITX EMB-6908T
4 GND
5 SATA_RX36 SATA_RX3+
7 GND
8 GND
9 GND
2.29 2nd Serial ATA Connector (CN21)
Pin Signal
1 GND
2 SATA_TX1+
3 SATA_TX14 GND
5 SATA_RX16 SATA_RX1+
7 GND
8 GND
9 GND
2.30 External RTC Connector (CN22)
Pin Signal
1 +RTCBAT
2 GND
2.31 ATX Power Connector (CN23)
Pin Signal Pin Signal
1 +3.3V 11 +3.3V
2 +3.3V 12 -12V
3 GND 13 GND
4 +5V 14 PS_ON
Chapter 2 Quick Installation Guide 2 - 18
Mini-ITX EMB-6908T
5 GND 15 GND
6 +5V 16 GND
7 GND 17 GND
8 POWER OK 18 -5V
9 +5VSB 19 +5V
10 +12V 20 +5V
2.32 1st Serial ATA Connector (CN25)
Pin Signal
1 GND
2 SATA_TX0+
3 SATA_TX04 GND
5 SATA_RX06 SATA_RX0+
7 GND
8 GND
9 GND
2.33 PCI-Express Connector (CN26)
Pin Signal Pin Signal
A1 GND B1 +12V
A2 +12V B2 +12V
A3 +12V B3 +12V
A4 GND B4 GND
A5 NC B5 SMCLK
A6 NC B6 SMDAT
A7 NC B7 GND
A8 NC B8 +3.3V
Chapter 2 Quick Installation Guide 2 - 19
Mini-ITX EMB-6908T
A9 +3.3V B9 NC
A10 +3.3V B10 +3.3V
A11 PERST# B11 +3.3V
A12 GND B12 NC
A13 PE0_CLK+ B13 GND
A14 PE0_CLK- B14 PETp0
A15 GND B15 PETn0
A16 PERp0 B16 GND
A17 PERn0 B17 NC
A18 GND B18 GND
A19 NC B19 PETp1
A20 GND B20 PETn1
A21 PERp1 B21 GND
A22 PERn1 B22 GND
A23 GND B23 NC
A24 GND B24 NC
A25 NC B25 GND
A26 NC B26 GND
A27 GND B27 NC
A28 GND B28 NC
A29 NC B29 GND
A30 NC B30 PE1_CLKA31 GND B31 NC
A32 PE1_CLK+ B32 GND
2.34 5th USB Connector (CN27)
Pin Signal Pin Signal
1 +5V 2 GND
3 USBD8- 4 GND
5 USBD8+ 6 USBD9+
Chapter 2 Quick Installation Guide 2 - 20
Mini-ITX EMB-6908T
7 GND 8 USBD99 GND 10 +5V
2.35 4th USB Connector (CN28)
Pin Signal Pin Signal
1 +5V 2 GND
3 USBD6- 4 GND
5 USBD6+ 6 USBD7+
7 GND 8 USBD79 GND 10 +5V
2.36 2nd USB Connector (CN29)
Pin Signal Pin Signal
1 +5V 2 GND
3 USBD2- 4 GND
5 USBD2+ 6 USBD3+
7 GND 8 USBD39 GND 10 +5V
2.37 COM6 RS-232 Serial Port Connector (CN30)
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 NC
Chapter 2 Quick Installation Guide 2 - 21
Mini-ITX EMB-6908T
2.38 COM5 RS-232 Serial Port Connector (CN31)
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 NC
2.39 COM3 RS-232 Serial Port Connector (CN32)
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 NC
2.40 COM4 RS-232 Serial Port Connector (CN33)
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 NC
2.41 IrDA Connector (CN34)
Pin Signal
1 +5V
2 N.C.
3 IRRX
Chapter 2 Quick Installation Guide 2 - 22
Mini-ITX EMB-6908T
4 GND
5 IRTX
6 NC
2.42 Fan2 Connector (CN35)
Pin Signal
1 GND
2 +12V
3 Speed Sense
4 Speed Control
2.43 LPT Port Connector (CN36)
Pin Signal Pin Signal
1 #STROBE 2 #AFD
3 DATA0 4 #ERROR
5 DATA1 6 #INIT
7 DATA2 8 #SLIN
9 DATA3 10 GND
11 DATA4 12 GND
13 DATA5 14 GND
15 DATA6 16 GND
17 DATA7 18 GND
19 #ACK 20 GND
21 BUSY 22 GND
23 PE 24 GND
25 SELECT 26 N.C
Chapter 2 Quick Installation Guide 2 - 23
Mini-ITX EMB-6908T
2.44 Digital I/O Connector (CN37, CN38)
This connector offers 4-pair of digital I/O functions and address is set in
BIOS. The default address is 2A1H. The pin definitions are illustrated
below:
Pin Signal
1 Digital-IN/ OUT 2 Digital-IN/OUT
3 Digital-IN/ OUT 4 Digital-IN/ OUT
5 Digital-IN/ OUT 6 Digital-IN/ OUT
7 Digital-IN/ OUT 8 Digital-IN/ OUT
9 +5V 10 GND
The pin definitions and registers mapping are illustrated below:
4 in / 4 out (CN37)
Pin8 Pin7 Pin6 Pin5 Pin4 Pin3 Pin2 Pin1
GPI 10 GPI 11 GPI 12 GPI 13 GPO 14 GPO 15 GPO 16 GPO 17
LSB
MSB
8 in (CN37)
Pin8 Pin7 Pin6 Pin5 Pin4 Pin3 Pin2 Pin1
GPI 10 GPI 11 GPI 12 GPI 13 GPO 14 GPO 15 GPO 16 GPO 17
LSB MSB
8 out (CN37)
Pin8 Pin7 Pin6 Pin5 Pin4 Pin3 Pin2 Pin1
GPI 10 GPI 11 GPI 12 GPI 13 GPO 14 GPO 15 GPO 16 GPO 17
LSB MSB
Chapter 2 Quick Installation Guide 2 - 24
Mini-ITX EMB-6908T
4 in / 4 out (CN38)
Pin8 Pin7 Pin6 Pin5 Pin4 Pin3 Pin2 Pin1
GPI 20 GPI 21 GPI 22 GPI 23 GPO 24 GPO 25 GPO 26 GPO 27
LSB MSB
8 in (CN38)
Pin8 Pin7 Pin6 Pin5 Pin4 Pin3 Pin2 Pin1
GPI 20 GPI 21 GPI 22 GPI 23 GPI 24 GPI 25 GPI 26 GPI 27
LSB MSB
8 out (CN38)
Pin8 Pin7 Pin6 Pin5 Pin4 Pin3 Pin2 Pin1
GPO 20 GPO 21 GPO 22 GPO 23 GPO 24 GPO 25 GPO 26 GPO 27
LSB MSB
Chapter 2 Quick Installation Guide 2 - 25
Mini-ITX EMB-6908T
Below Table for China RoHS Requirements
产品中有毒有害物质或元素名称及含量
AAEON Main Board/ Daughter Board/ Backplane
有毒有害物质或元素
部件名称
印刷电路板
及其电子组件
外部信号
连接器及线材
O：表示该有毒有害物质在该部件所有均质材料中的含量均在
SJ/T 11363-2006 标准规定的限量要求以下。
X：表示该有毒有害物质至少在该部件的某一均质材料中的含量超出
SJ/T 11363-2006 标准规定的限量要求。
备注：此产品所标示之环保使用期限，系指在一般正常使用状况下。
铅
(Pb)汞 (Hg)镉 (Cd)
× ○ ○ ○ ○ ○
× ○ ○ ○ ○ ○
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴二苯醚
(PBDE)
Chapter 2 Quick Installation Guide 2 - 26
Mini-ITX EMB-6908T
Chapter
3
Award
BIOS Setup
Chapter 3 Award BIOS Setup 3-1
Mini-ITX EMB-6908T
3.1 System Test and Initialization
These routines test and initialize board hardware. If the
routines encounter an error during the tests, you will either
hear a few short beeps or see an error message on the
screen. There are two kinds of errors: fatal and non-fatal. The
system can usually continue the boot up sequence with
non-fatal errors. Non-fatal error messages usually appear on
the screen along with the following instructions:
Press <F1> to RESUME
Write down the message and press the F1 key to continue
the boot up sequence.
System configuration verification
These routines check the current system configuration
against the values stored in the CMOS memory. If they do
not match, the program outputs an error message. You will
then need to run the BIOS setup program to set the
configuration information in memory.
There are three situations in which you will need to change
the CMOS settings:
1. You are starting your system for the first time
2. You have changed the hardware attached to your system
3. The CMOS memory has lost power and the configuration
information has been erased.
The EMB-6908T CMOS memory has an integral lithium
battery backup for data retention. However, you will need to
replace the complete unit when it finally runs down.
Chapter 3 Award BIOS Setup 3-2
Mini-ITX EMB-6908T
3.2 Award BIOS Setup
Awards BIOS ROM has a built-in Setup program that allows users
to modify the basic system configuration. This type of information is
stored in battery-backed CMOS RAM so that it retains the Setup
information when the power is turned off.
Entering Setup
Power on the computer and press <Del> immediately. This will
allow you to enter Setup.
Standard CMOS Features
Use this menu for basic system configuration. (Date, t ime, IDE,
etc.)
Advanced BIOS Features
Use this menu to set the advanced features available on your
system.
Advanced Chipset Features
Use this menu to change the values in the chipset registers and
optimize your system performance.
Integrated Peripherals
Use this menu to specify your settings for integrated peripherals.
(Primary slave, secondary slave, keyboard, mouse etc.)
Power Management Setup
Use this menu to specify your settings for power management.
(HDD power down, power on by ring, KB wake up, etc.)
PnP/PCI Configurations
This entry appears if your system supports PnP/PCI.
Chapter 3 Award BIOS Setup 3-3
Mini-ITX EMB-6908T
PC Health Status
This menu allows you to set the shutdown temperature for your
system.
Frequency/Voltage Control
Use this menu to specify your settings for auto detect DIMM/PCI
clock and spread spectrum.
Load Fail-Safe Defaults
Use this menu to load the BIOS default values for the
minimal/stable performance for your system to operate.
Load Optimized Defaults
Use this menu to load the BIOS default values that are factory
settings for optimal performance system operations. While AWARD
has designated the custom BIOS to maximize performance, the
factory has the right to change these defaults to meet their needs.
Set Supervisor/User Password
Use this menu to set Supervisor/User Passwords.
Save and Exit Setup
Save CMOS value changes to CMOS and exit setup.
Exit Without Saving
Abandon all CMOS value changes and exit setup.
You can refer to the “ AAEON BIOS Item Description.pdf” file
in the CD for the meaning of each setting in this chapter.
Chapter 3 Award BIOS Setup 3-4
Mini-ITX EMB-6908T
Chapter
4
Driver
Installation
.
Chapter 4 Driver Installation 4 -1
Mini-ITX EMB-6908T
The EMB-6908T comes with an AutoRun CD-ROM that contains all
drivers and utilities that can help you to install the driver
automatically.
Insert the driver CD, the driver CD-title will auto start and show the
installation guide. If not, please follow the sequence below to install
the drivers.
Follow the sequence below to install the drivers:
Step 1 – Install Chipset Driver
Step 2 – Install LAN Driver
Step 3 – Install ATI HDMI Audio Device
Step 4 – Install Audio Driver
Step 5 – Install TPM Driver
USB 2.0 Drivers are available for download using Windows
Update for both Windows
information regarding USB 2.0 support in Windows
Windows
®
2000, please visit www.microsoft.com/hwdev/usb/.
®
XP and Windows® 2000. For additional
®
XP and
®
Please read instructions below for further detailed installations.
Chapter 4 Driver Installation 4 -2
Mini-ITX EMB-6908T
4.1 Installation:
Insert the EMB-6908T CD-ROM into the CD-ROM drive. And install
the drivers from Step 1 to Step 5 in order.
Step 1 – Install Chipset Driver
1. Click on the Step 1 – Chipset Driver folder and sel ect the
OS folder your system is
Note:
If your system is Windows XP, please select WIN XP 32-Bit or WIN XP
64-Bit folder located in WinXP folder. After entering the WIN XP 32-Bit or
WIN XP 64-Bit folder, click on the folder of Step 1-Microsoft .NET
Framework 2.0 or Step 1-Microsoft .NET Framework 2.0 (x64). You
have to click on the dotnetfx or NetFx64 located in the folders above to
install the driver first before going to the next step.
2. Double Click on the Setup.exe located in each OS folder
3. Follow the instructions that the window shows
4. The system will help you install the driver automatically
Step 2 – Install LAN Driver
1. Click on the Step 2 – Lan Driver folder and select the OS
folder your system is
2. Double click on the .exe file located in each OS folder
3. Follow the instructions that the window shows
4. The system will help you install the driver automatically
Chapter 4 Driver Installation 4 -3
Mini-ITX EMB-6908T
Step 3 –Install ATI HDMI Audio Device
1. Click on the Step 3 – ATI HDMI Audio Device folder and
double click on the HDMI_R168.exe file
2. Follow the instructions that the window shows
3. The system will help you install the driver automatically
Step 4 –Install Audio Driver
1. Click on the Step 4 –Audio Driver folder and select the OS
folder your system is
2. Double click on the SETUP.exe located in each OS
folder
3. Follow the instructions that the window shows
4. The system will help you install the driver automatically
Step 5 –Install TPM Driver
1. Click on the Step 5 – TPM Driver folder and double click
on the setup.exe
2. Follow the instructions that the window shows
3. The system will help you install the driver automatically
Chapter 4 Driver Installation 4 -4
Mini-ITX EMB-6908T
A
Appendix
Programming the
Watchdog Timer
Appendix A Programming the Watchdog Timer A-1
Mini-ITX EMB-6908T
A.1 Programming
EMB-6908T utilizes ITE 8712 chipset as its watchdog timer
controller.
Below are the procedures to complete its configuration and the
AAEON intial watchdog timer program is also attached based on
which you can develop customized program to fit your
application.
Configuring Sequence Description
After the hardware reset or power-on reset, the ITE 8712 enters
the normal mode with all logical devices disabled except KBC.
The initial state (enable bit ) of this logical device (KBC) is
determined by the state of pin 121 (DTR1#) at the falling edge of
the system reset during power-on reset.
Appendix A Programming the Watchdog Timer A-2
Mini-ITX EMB-6908T
There are three steps to complete the configuration setup: (1)
Enter the MB PnP Mode; (2) Modify the data of configuration
registers; (3) Exit the MB PnP Mode. Undesired result may
occur if the MB PnP Mode is not exited normally.
(1) Enter the MB PnP Mode
To enter the MB PnP Mode, four special I/O write operations
are to be performed during Wait for Key state. To ensure the
initial state of the key-check logic, it is necessary to perform
four write operations to the Special Address port (2EH). Two
different enter keys are provided to select configuration ports
(2Eh/2Fh) of the next step.
(2) Modify the Data of the Registers
All configuration registers can be accessed after entering the
MB PnP Mode. Before accessing a selected register, the
content of Index 07h must be changed to the LDN to which
the register belongs, except some Global registers.
(3) Exit the MB PnP Mode
Set bit 1 of the configure control register (Index=02h) to 1 to
exit the MB PnP Mode.
Appendix A Programming the Watchdog Timer A-3
Mini-ITX EMB-6908T
WatchDog Timer Configuration Registers
Configure Control (Index=02h)
This register is write only. Its values are not sticky; that is to
say, a hardware reset will automatically clear the bits, and
does not require the software to clear them.
Appendix A Programming the Watchdog Timer A-4
Mini-ITX EMB-6908T
WatchDog Timer Control Register (Index=71h, Default=00h)
WatchDog Timer Configuration Register (Index=72h,
Default=00h)
WatchDog Timer Time-out Value Register (Index=73h,
Default=00h)
Appendix A Programming the Watchdog Timer A-5
Mini-ITX EMB-6908T
A.2 IT8712 Watchdog Timer Initial Program
.MODEL SMALL
.CODE
Main:
CALL Enter_Configuration_mode
CALL Check_Chip
mov cl, 7
call Set_Logic_Device
;time setting
mov cl, 10 ; 10 Sec
dec al
Watch_Dog_Setting:
;Timer setting
mov al, cl
mov cl, 73h
call Superio_Set_Reg
;Clear by keyboard or mouse interrupt
mov al, 0f0h
mov cl, 71h
call Superio_Set_Reg
;unit is second.
mov al, 0C0H
mov cl, 72h
call Superio_Set_Reg
Appendix A Programming the Watchdog Timer A-6
Mini-ITX EMB-6908T
; game port enable
mov cl, 9
call Set_Logic_Device
Initial_OK:
CALL Exit_Configuration_mode
MOV AH,4Ch
INT 21h
Enter_Configuration_Mode PROC NEAR
MOV SI,WORD PTR CS:[Offset Cfg_Port]
MOV DX,02Eh
MOV CX,04h
Init_1:
MOV AL,BYTE PTR CS:[SI]
OUT DX,AL
INC SI
LOOP Init_1
RET
Enter_Configuration_Mode ENDP
Exit_Configuration_Mode PROC NEAR
MOV AX,0202h
CALL Write_Configuration_Data
Appendix A Programming the Watchdog Timer A-7
Mini-ITX EMB-6908T
RET
Exit_Configuration_Mode ENDP
Check_Chip PROC NEAR
MOV AL,20h
CALL Read_Configuration_Data
CMP AL,87h
JNE Not_Initial
MOV AL,21h
CALL Read_Configuration_Data
CMP AL,12h
JNE Not_Initial
Need_Initial:
STC
RET
Not_Initial:
CLC
RET
Check_Chip ENDP
Read_Configuration_Data PROC NEAR
MOV DX,WORD PTR CS:[Cfg_Port+04h]
OUT DX,AL
Appendix A Programming the Watchdog Timer A-8
Mini-ITX EMB-6908T
MOV DX,WORD PTR CS:[Cfg_Port+06h]
IN AL,DX
RET
Read_Configuration_Data ENDP
Write_Configuration_Data PROC NEAR
MOV DX,WORD PTR CS:[Cfg_Port+04h]
OUT DX,AL
XCHG AL,AH
MOV DX,WORD PTR CS:[Cfg_Port+06h]
OUT DX,AL
RET
Write_Configuration_Data ENDP
Superio_Set_Reg proc near
push ax
MOV DX,WORD PTR CS:[Cfg_Port+04h]
mov al,cl
out dx,al
pop ax
inc dx
out dx,al
ret
Superio_Set_Reg endp.Set_Logic_Device proc near
Set_Logic_Device proc near
Appendix A Programming the Watchdog Timer A-9
Mini-ITX EMB-6908T
push ax
push cx
xchg al,cl
mov cl,07h
call Superio_Set_Reg
pop cx
pop ax
ret
Set_Logic_Device endp
;Select 02Eh->Index Port, 02Fh->Data Port
Cfg_Port DB 087h,001h,055h,055h
DW 02Eh,02Fh
END Main
Note: Interrupt level mapping
0Fh-Dh: not valid
0Ch: IRQ12
.
.
03h: IRQ3
02h: not valid
01h: IRQ1
00h: no interrupt selected
Appendix A Programming the Watchdog Timer A-10
Mini-ITX EMB-6908T
Appendix
B
I/O Information
Appendix B I/O Information B-1
Mini-ITX EMB-6908T
B.1 I/O Address Map
Appendix B I/O Information B-2
Mini-ITX EMB-6908T
Appendix B I/O Information B-3
Mini-ITX EMB-6908T
B.2 Memory Address Map
Appendix B I/O Information B-4
Mini-ITX EMB-6908T
B.3 IRQ Mapping Chart
B.4 DMA Channel Assignments
Appendix B I/O Information B-5
Mini-ITX EMB-6908T
Appendix
C
Mating Connecotor
Appendix C Mating Connector C - 1
Mini-ITX EMB-6908T
C.1 List of Mating Connectors and Cables
The table notes mating connectors and available cables.
Label
CN5
CN9
CN10
CN11
CN12
CN13
CN14
CN15
Function
Audio 5.1
Channel /
SPDIF
Connector
Audio
Speak Out
Connector
Internal
Keyboard
Connector
CD-IN
Connector
LVDS-LCD
Connector
for 24/48
bit
LCD
Inverter
Connector
Internal
Mouse
Connector
Front
Panel
Connector
Mating Connector Connector
Vendor Model no
Catch 2.00mm Pitch 14
pins (Catch
H709-2
or compatible)
HOBASE
HOBASE
HOBASE
ComWe
al
HOBASE
HOBASE
HOBASE
2.54mm Pitch 4
pins (HO-BASE
2503-H-4 or
compatible)
2.54mm Pitch 5
pins (HO-BASE
2503-H-5
or compatible)
2.54mm Pitch 4
pins (HO-BASE
2541-1H-4
or compatible)
1.25mm Pitch 30
Pins(ComWeal
103-303M
or compatible)
2.0mm Pitch 5
pins (HO-BASE
2002-H-5
or compatible)
2.0mm Pitch 4
pins (HO-BASE
2002-H-4
or compatible)
2.54mm Pitch 10
pins (HO-BASE
2541-2H-2X5
or compatible)
Available
Cable
Audio
Cable
NA NA
NA NA
CDROM
Cable
NA NA
NA NA
NA NA
NA NA
Cable P/N
1700140164
1703040400
Appendix C Mating Connector C - 2
p
CN16
CN17
CN20
CN21
CN22
CN23
CN25
CN27
CN28
CN29
CN30
Mini-ITX EMB-6908T
Fan1
Connector
Catch 2.54mm Pitch 3
pins (Catch
1190-700-03S
NA NA
or compatible)
3rd Serial
ATA
Connector
Catch 1.27mm Pitch 7
pins (Catch
H16A30 00-00 or
SATA
Cable
1709070500
compatible)
4th Serial
ATA
Connector
Catch 1.27mm Pitch 7
pins (Catch
H16A30 00-00 or
SATA
Cable
1709070500
compatible)
2nd Serial
ATA
Connector
External
RTC
Connector
Catch 1.27mm Pitch 7
pins (Catch
H16A30 00-00 or
compatible)
Molex 1.25mm Pitch 2
pins (Molex
51021-0200
SATA
Cable
1709070500
NA NA
or compatible)
ATX
Power
Connector
Catch 3.50 mm Pitch 20
pins (Catch
1121-700-20S or
NA NA
compatible)
1st Serial
ATA
Connector
Catch 1.27mm Pitch 7
pins (Catch
H16A30 00-00 or
SATA
Cable
1709070500
compatible)
5th USB
Connector
Catch 2.00mm Pitch 10
pins ( Catch
H754-2x5
USB
Cable
1709100201
or compatible)
4th USB
Connector
Catch 2.00mm Pitch 10
pins ( Catch
H754-2x5
USB
Cable
1709100201
or compatible)
2nd USB
Connector
Catch 2.00mm Pitch 10
pins ( Catch
H754-2x5
USB
Cable
1709100201
or compatible)
COM6
RS-232
Catch 2.00mm Pitch 10
ins ( Catch
Appendix C Mating Connector C - 3
Serial
Port
1701100206
CN31
CN32
CN33
CN34
CN35
CN36
CN37
CN38
IDE1
Mini-ITX EMB-6908T
Serial Port
Connector
COM5
RS-232
Serial Port
Catch 2.00mm Pitch 10
Connector
COM3
RS-232
Serial Port
Catch 2.00mm Pitch 10
Connector
COM4
RS-232
Serial Port
Catch 2.00mm Pitch 10
Connector
IrDA
Connector
HOBASE
H754-2x5
or compatible)
pins ( Catch
H754-2x5
or compatible)
pins ( Catch
H754-2x5
or compatible)
pins ( Catch
H754-2x5
or compatible)
2.0mm Pitch 6
pins (HO-BASE
2000-1H-6
Cable
Serial
1701100206
Port
Cable
Serial
1701100206
Port
Cable
Serial
1701100206
Port
Cable
NA NA
or compatible)
Fan2
Connector
Catch 2.54mm Pitch 3
pins (Catch
1190-700-03S
NA NA
or compatible)
LPT Port
Connector
HR 2.0mm Pitch 26
pins (HR
A2016H-N-2X13
Parallel
Port
Cable
1701260201
P-A)
Digital I/O
Connector
(1)
Digital I/O
Connector
(2)
IDE
Connector
Catch 2.00mm Pitch 10
pins ( Catch
H754-2x5
or compatible)
Catch 2.00mm Pitch 10
pins ( Catch
H754-2x5
or compatible)
Catch
【2.54mm】
1137-020-40SA
(or compatible)
NA NA
NA NA
EIDE
1701400453
Cable
Appendix C Mating Connector C - 4
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