COMMELL LE-374 User Manual

LE-374

3.5 inch Miniboard

User’s Manual

Edition 2.1

2010/06/14

LE-374 User’s Manual

Copyright

Copyright 2009. All rights reserved. This document is copyrighted and all rights are
reserved. The information in this document is subject to change without prior notice to
make improvements to the products.
This document contains proprietary information and pr otected by copyright. No part of
this document may be reproduced, copied, or translated in any form or any means
without prior written permission of the manufacturer.
All trademarks and/or registered trademarks contains in this document are propert y of
their respective owners.

Disclaimer

The company shall not be liable for any incidental or consequential damages resulting
from the performance or use of this product.
The company does not issue a warranty of any kind, express or implied, including
without limitation implied warranties of merchantability or fitness for a particular purpose.
The company has the right to revise the manual or include changes in the specifications
of the product described within it at any time without notice and without obligation to
notify any person of such revision or changes.

Trademark

All trademarks are the property of their respective holders.

Any questions please visit our website at TUhttp://www.commell.com.twUT

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LE-374 User’s Manual

Packing List:

Please check the package content before you starting using the board.

Hardware:

LE-374 3.5“ Miniboard x 1

Cable Kit:

44-pin

SATA Power Cable x 1

1 to 3 power output cable

Audio Port Cable x 1

(OALPJ-SANB)

44-pin

ATA33 IDE Cable x1

(OALUDMA33-8)

(OAL4P-S1)

AL4P-2

DC Power Cable x 1

(OALDC-2)

SATA Cable x 1

(OALSATA-L)

PS/2 keyboard & mouse cable x 1

(OALPS2/MK)

DVI module x 1 (LE-374 only)

(ADPDVI + OALDVI-P)

Printed Matters:

Driver CD x 1 (Including User’s Manual)

COM Port Cable x 1

(OALES-BKU1NB)

Optional:

SDTV Cable x 1
(OALTV-OUT)

USB Cable x 1

(OALUSBA-3)

YPbPr Cable x 1
(OALTV-OUT-H)

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LE-374 User’s Manual

Index

Chapter 1 <Introduction>

1.1 <Product Overview>.................................................................................. 6

1.2 <Product Specification>.............................................................................7

1.3 <Mechanical Drawing>.............................................................................. 9

1.4 <Mechanical Drawing>............................................................................ 10

................................................................6

Chapter 2 <Hardware Setup>..................................................... 11

2.1 <Connector Location>............................................................................. 1 1

2.2 <Jumper Reference>............................................................................... 13

2.3 <Connector Reference>..........................................................................14

2.3.1 <Internal Connector>..............................................................14

2.3.2 <External Connector> ............................................................14

2.4 <CPU and Memory Setup> .....................................................................15

2.5 <CMOS＆ATX Setup>.............................................................................16

2.6 <Enhanced IDE & CF Interface>.............................................................17

2.7 <Serial ATA Interface>............................................................................18

2.8 <LAN Interface> ......................................................................................18

2.9 <Onboard Display Interface> ..................................................................19

2.9.1 <Analog VGA Interface> ........................................................19

2.9.2 <Digital Display>.....................................................................20

2.9.3 <DVI Interface >.....................................................................24

2.9.4 <TV-out Interface> .................................................................25

2.10 <Onboard Audio Interface>...................................................................26

2.11 <USB2.0 Interface>...............................................................................27

2.12 <GPIO Interface> ..................................................................................28

2.13 <Serial Port Jumper Setting > ...............................................................29

2.14 <Power and Fan Connector >...............................................................31

2.14.1 <Power Input>......................................................................31

2.14.2 <Power Output>...................................................................32

2.14.3 <Fan Connector> .................................................................32

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2.15 <Indicator and Switch>..........................................................................33

Chapter 3 <System Configuration>.......................................35

3.1 <Video Memory Setup>...........................................................................35

3.2 <Audio Configuration >............................................................................37

Chapter 4 <BIOS Setup>................................................................39

Appendix A <I/O Port Pin Assignment>.............................41

A.1 <IDE Port>...............................................................................................41

A.2 <IrDA Port>..............................................................................................42

A.3 < CRT Port >...........................................................................................42

A.4 <Serial ATA Port>....................................................................................42

A.5 <Serial Port> ...........................................................................................43

A.6 <LAN Port>..............................................................................................43

Appendix B <Flash BIOS>............................................................44

B.1 BIOS Auto Flash Tool..............................................................................44

B.2 Flash Method...........................................................................................44

Appendix C <System Resources>.........................................45

C.1 <I/O Port Address Map>.........................................................................45

C.2 <Memory Address Map >........................................................................47

C.3 < System IRQ Resources > ....................................................................48

Appendix D <Programming GPIO’s>....................................49

Appendix E <Watch Dog timer Setting >...........................50

Contact Information..........................................................................52

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LE-374 User’s Manual

Chapter 1 <Introduction>

1.1 <Product Overview>

LE-374 is the 3.5 inch miniboard, with Intel® Atom N270 processor for 533 MHz front

side bus, Intel® 945GSE and ICH7M chipset, integrated GMA950 graphics, DDR2
SO-DIMM memory, Realtek AC97 Audio, Serial ATA and one Intel® 82574L Gigabit
LAN.

Intel Atom Processor

The Intel® Atom N270 single core processor is with 533 MHz front side bus, 512KB L2
cache. It's built on 45nm process technology support Hyper-Threading Technology,
Enhanced Intel SpeedStep® Technology reduces average system po wer consumption.

Mobile Intel® 945GSE chipset
The board integrates Intel® 945GSE and ICH7M chipset. The chipset features
power-efficient graphics with an integrated 32-bit 3D graphics engine based on Intel®
Graphics Media Accelerator 950 architecture with DVI, LVDS, CRT, and
TV-Out display ports. It provides I/O capabilities and flexibility via high-bandwidth
interfaces such as PCI, Serial ATA and Hi-Speed USB 2.0 connectivity. It also includes a
single channel for 400/533 MHz DDR2 system memory (SODIMM), AC97 Audio with 5.1
channels surrounding sound.

All in One multimedia solution

Based on Intel 945GSE and ICH7M chipset, the board provides high performance
onboard graphics, 18-bit Dual channel LVDS interface, DVI and HDTV and 5.1 channels
AC97 Audio, to meet the every requirement of the multimedia application.

Flexible Extension Interface

The board also provides Compact Flash Type II socket and one mini-PCI socket.

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LE-374 User’s Manual

1.2 <Product Specification>

General Specification

Form Factor 3.5 inch miniboard
CPU Intel® Atom N270 processor

Package type: FCBGA8
Front side bus: 533MHz

Memory 1 x 200-pin DDR2 SO-DIMM SDRAM up to 2GB

Unbufferred, none-ECC memory supported only
Chipset Intel® 945GSE and ICH7M
BIOS Phoenix-Award v6.00PG 8Mb SPI flash BIOS
Green Function Power saving mode includes doze, standby and suspend modes.

ACPI version 1.0 and APM version 1.2 compliant
Watchdog Timer System reset programmable watchdog timer with 1 ~ 255

sec./min. of timeout value
Real Time Clock Intel® ICH7M built-in RTC with lithium battery
Enhanced IDE UltraDMA33 IDE interface supports up to 2 ATAPI devices

One 44-pin IDE port onboard

One CompactFlash Type II socket on solder side
Serial ATA Intel® ICH7M integrates 2 Serial ATA interfaces

(No RAID Function)

Up to 150MB/s of transfer rate

Multi-I/O Port

Chipset Intel® ICH7M with Winbond® W83627THG controller
Serial Port One RS-232/422/485 serial port and one RS-232
USB Port Two external & two internal Hi-Speed USB 2.0 ports with

480Mbps of transfer rate
IrDA Port One IrDA compliant Infrared interface supports SIR
K/B & Mouse PS/2 keyboard and mouse port
GPIO One 12-pin Digital I/O connector with 8-bit programmable I/O

interface
Smart Fan One CPU fan connectors for fan speed controllable

VGA Display Interface

Chipset Intel® 945GSE GMCH (Graphic Memory Controller Hub)
Frame Buffer Up to 224MB shared with system memory
Display Type CRT, LCD monitor with analog display, HDTV, DVI (LE-374 only)
Connector External DB15 female connector on rear I/O panel

Onboard 40-Pin LVDS connector

Onboard 26-Pin DVI connector (LE-374 only)

Onboard 10-Pin TV-out connector

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LE-374 User’s Manual

Ethernet Interface

Controller 1 x Intel 82574L Gigabit Ethernet controller
Type Triple speed 10/100/1000Base-T

auto-switching Fast Ethernet
Full duplex, IEEE802.3U compliant

Connector One External RJ45 connector with LED on rear I/O panel

Audio Interface

Chipset REALTEK ALC655
Interface 5.1 channel surround audio with Line-in, Line-out and MIC-in

Connector Onboard audio connector with pin header

Onboard CD-IN connector

Expansive Interface

Mini PCI 1 x Mini PCI socket

Power and Environment

Power

DC 9~24V input with onboard 4-pin connector
Requirement
Dimension 146 (L) x 101(H) mm
Temperature Operating within 0 ~ 60℃

Storage within -20 ~ 85℃

Ordering Code

LE-374 Support Intel Atom N270 processor with onboard VGA, HDTV,

DVI, LVDS, Audio, SATA, Giga LAN, USB2.0, CF, GPIO, Mini

PCI, FDD
LE-374X Support Intel Atom N270 processor with onboard VGA, HDTV,

DVI, LVDS (18/ 24 bit ), Audio, SATA, Giga LAN, USB2.0, CF,

GPIO, Mini PCI, FDD
The specifications may be different as the actual production.

For further product information please visit the website at

TUhttp://www.commell.com.twUT

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LE-374 User’s Manual

1.3 <Mechanical Drawing>

Unit: inch

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r

1.4 <Mechanical Drawing>

Intel Atom N270 Processo

Intel GMA950 Graphics

1 x 200-pin DDR2
SO-DIMM SDRAM
400/533 MHz

HDTV＆LVDS

DVI

CompactFlash＆IDE

4 x USB2.0 ports

2 x Serial ports

8-bit GPIO

1 x IrDA

7307C

Intel 945 GSE

2 x SATA

AC97 ALC655

ICH7M

Intel 82574L

1 x GLAN

Mini PCI

W83627THG

SPI

BIOS

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Chapter 2 <Hardware Setup>

2.1 <Connector Location>

JAT

MINIPCI

CDIN

CN AUDIO

CN_DIO

SYSFAN

SATA1/2

CN_USB

CN_IR

IDE

CN_LVDS

CN_DVI

CN_HDTV

DC_IN

JFRNT CN_INV DC_OUT

CN_COM2

CPUFAN

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DDRII

CF

RJ45 PS2 USB CRT COM1

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2.2 <Jumper Reference>

Jumper Function

JRTC CMOS Operating/Clear Setting
JVLCD LCD Panel Voltage Setting
JAT AT Mode
JCSEL1/2 COM2 RS232/422/485 mode setting

JAT

JVLCD

JRTC

JCSEL1

JCSEL2

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2.3 <Connector Reference>

2.3.1 <Internal Connector>

Connector Function Remark

DDRII 200 -pin DDR2 SO-DIMM SDRAM slot Standard
IDE 44-pin primary IDE connector Slim
SATA1/2 7-pin Serial ATA connector Standard
CN_AUDIO 5 x 2-pin audio connector Slim
CDIN 4-pin CD-ROM audio input connector Standard
CN_DIO 6 x 2-pin digital I/O connector Standard
CN_USB 5 x 2-pin USB connector Standard
CPUFAN 4-pin CPU cooler fan connector Standard
SYSFAN 3-pin system cooler fan connector Standard
CN_COM2 5 x 2-pin com connector Slim
CN_IR 5-pin IrDA connector Standard
CF Compact Flash Type II socket Standard
CN_LVDS 20 x 2-pin LVDS connector Standard
CN_INV 5-pin LCD inverter connector Standard
DC_OUT 4-pin power output connector Standard
DC_IN DC 12V input connector Standard
MINIPCI Mini-PCI socket Standard
CN_DVI 13 x 2-pin DVI interface Standard
CN_HDTV 5 x 2-pin HDTV interface Standard
JFRNT 14-pin switch/indicator connector Standard

2.3.2 <External Connector>

Connector Function Remark

CRT DB15 VGA connector Standard
USB Dual USB 2.0 connector Standard
COM1 DB9 Serial port connector Standard
RJ45 One RJ45 LAN connector Standard
PS2 PS/2 keyboard and mouse connector Standard

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LE-374 User’s Manual

2.4 <CPU and Memory Setup>

The board provides one 200-pin DDR2 SO-DIMM to support DDR2 533 memory
modules up to 2GB of capacity. Non-ECC, unbuffered memory is supported only.

DDRII

CF

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2.5 <CMOS＆ATX Setup>

The board’s data of CMOS can be setting in BIOS. If the board refuses to boot due to
inappropriate CMOS settings, here is how to proceed to clear (reset) the CMOS to its
default values.

Jumper: JRTC
Type: Onboard 3-pin jumper

JRTC Mode

1-2 Clear CMOS
2-3 Normal Operation

Default setting

Jumper: JAT
Type: onboard 2-pin header

JAT Mode

Open ATX Mode
Short AT Mode

Default setting

JAT

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JRTC

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LE-374 User’s Manual

2.6 <Enhanced IDE & CF Interface>

The board has one Ultra DMA33 IDE interface to support up to 2 ATAPI devices and one
Compact Flash Type II socket on the solder side.

43

1

44

IDE

2

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2.7 <Serial ATA Interface>

Based on Intel ICH7M, the board provides two Serial ATA interfaces with up to 150MB/s
of transfer rate

SATA1/2

.

2.8 <LAN Interface>

The Intel 82574L supports triple speed of 10/100/1000Base-T, with IEEE802.3
compliance and Wake-On-LAN supported.

LAN

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2.9 <Onboard Display Interface>

Based on Intel 945GSE chipset with built-in GMA (Graphic Media Accelerator) 950
graphics, the board provides one DB15 connector on real external I/O port, and one
40-pin LVDS interface with 5-pin LCD backlight inverter connector. The board provides
dual display function with clone mode and extended desktop mode for CRT, LCD and
TV-out.

2.9.1 <Analog VGA Interface>

Please connect your CRT or LCD monitor with DB15 male connector to the onboard
DB15 female connector on rear I/O port.
The board supports up to 2048 x 1536 (QXGA) of resolution.

CRT

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2.9.2 <Digital Display>

The board provides one 40-pin LVDS connector for 18 or 24 bit dual channel panels,
supports up to 1600 x 1200 (UXGA) of resolution, with one LCD backlight inverter
connector and one jumper for panel voltage setting

Note: LE-374 supports 18 bit

LE-374X supports 18/ 24 bit

JVLCD

1

1 39

2 40

CN_LVDS

5

CN_INV

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Connector: CN_INV Connector: JVLCD
Type: 5-pin LVDS Power Header Type: 3-pin Power select Header
Connector model: JST B5B-XH-A

Pin Description Pin Description

1 +12V 1 VCC (5V)
2 GND 2 LCDVCC
3 GND 3 VCC3 (3.3)
4 GND Default: 2-3
5 ENABKL

Connector: CN_LVDS
Type: onboard 40-pin connector for LVDS connector
Connector model: HIROSE DF13-40DP-1.25V

Pin Signal Pin Signal

2 LCDVCC 1 LCDVCC
4 GND 3 GND
6 ATX0- 5 BTX0-

8 ATX0+ 7 BTX0+
10 GND 9 GND
12 ATX1- 11 BTX1­14 ATX1+ 13 BTX1+
16 GND 15 GND
18 ATX2- 17 BTX2­20 ATX2+ 19 BTX2+
22 GND 21 GND
24 ACLK- 23 BTX3-(LE-374X)
26 ACLK+ 25 BTX3+(LE-374X)
28 GND 27 GND
30 ATX3-(LE-374X) 29 BCLK­32 ATX3+(LE-374X) 31 BCLK+
34 GND 33 GND
36 N/C 35 N/C
38 N/C 37 N/C
40 N/C 39 N/C

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LE-374 User’s Manual

To setup the LCD, you need the component below:

1. A panel with LVDS interfaces.

2. An inverter for panel’s backlight power.

3. A LCD cable and an inverter cable.

For the cables, please follow the pin assignment of the connector to make a c able, becaus e
every panel has its own pin assignment, so we do not provide a standard cable; ple ase fin d
a local cable manufacture to make cables.

LCD Installation Guide:

1. Preparing the LE-374, LCD panel and the backlight inverter

2. Please check the datasheet of the panel to see the voltage of the panel, and set
the jumper JVLCD to +5V or +3.3V.

3. You would need a LVDS type cable.

Panel side

To connect all of the devices well.

4.

For sample illustrator only

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LE-374 User’s Manual

After setup the devices well, you need to select the LCD panel
type in the BIOS.

The panel type mapping is list below:

LE-374 BIOS panel type selection form

On board 18 bit LVDS

Single channel Dual channel

NO. Output format NO. Output format

1 640 x 480 9 1280 x 768
2 800 x 480
3 800 x 600
4 1024 x 600
5 1024 x 768
6 1280 x 600
7 1280 x 768
8 1280x 800

LE-374X BIOS panel type selection form

On board 18/24 bit LVDS

NO. Output format

1 640 x 480 single channel 24bit
2 800 x 480 single channel 24bit
3 1024 x 768 single channel 24bit
4 1280 x 1024 dual channel 24bit

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2.9.3 <DVI Interface >

The board also comes with a DVI interface with Chrontel CH7307C for digital video
interface. Supports up to 1600 x 1200 (UXGA) of resolution.
Connector: CN_DVI
Connector type: 26-pin header connector (pitch = 2.00mm)

Pin Number Assignment Pin Number Assignment

1 TX1+ 2 TX1­3 Ground 4 Ground
5 TXC+ 6 TXC­7 Ground 8 PVDD

9 N/C 10 N/C
11 TX2+ 12 TX2­13 Ground 14 Ground
15 TX0+ 16 TX0­17 N/C 18 HPDET
19 DDCDATA 20 DDCCLK
21 GND 22 N/C
23 N/C 24 N/C
25 N/C 26 N/C

25 1

26 2

CN_DVI

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LE-374 User’s Manual

2.9.4 <TV-out Interface>

The board provides an HDTV interface with Intel 945GSE, supports PAL and NTSC of
TV system, and display (clone or extended desktop) function with CRT, LVDS and DVI.
Connector: CN_HDTV
Connector type: 10-pin header HDTV connector (pitch = 2.54mm)

Pin Number Assignment Pin Number Assignment

1 GND 2 DACB
3 DACC 4 N/C
5 GND 6 GND
7 DACA 8 N/C
9 N/C 10 N/C

9 1

10 2

CN_HDTV

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2.10 <Onboard Audio Interface>

The board provides the onboard AC97 5.1-channel audio interface with Realtek
ALC655

Connector: CN_AUDIO

Type: 10-pin (2 x 5) 2.0mm x 2.0 mm-pitch header

Pin Description Pin Description

1 LIN_L 2 Ground
3 LIN_R 4 MIC 1
5 MIC 2 6 Ground
7 N/C 8 FRONTL
9 FRONTR 10 Ground

Connector: CDIN
Type: 4-pin header (pitch = 2.54mm)

Pin Description

1 CD – Left
2 Ground
3 Ground
4 CD – Right

10 9

2 1

CN_AUDIO

4

CDIN

1

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2.11 <USB2.0 Interface>

Based on Intel ICH7M , the board provides 4 USB2.0 ports. The USB2.0 interface
provides up to 480Mbps of transferring rate.

Interface USB2.0

Controller ICH7M

Transfer Rate Up to 480Mb/s

Output Current 500mA

CN_USB

10 2

CN_IR

5 1

USB

Connector: CN_USB
Type: 10-pin (5 x 2) header for USB Port

Pin Description Pin Description

1 VCC 2 VCC
3 Data0- 4 Data1­5 Data0+ 6 Data1+
7 Ground 8 Ground
9 Ground 10 N/C

PS: The USB2.0 will be only active when you connecting with the USB2.0 devices, if you
insert an USB1.1 device, the port will be changed to USB1.1 protocol automatically. The
transferring rate of USB2.0 as 480Mbps is depends on device capacity, exact
transferring rate may not be up to 480Mbps.

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2.12 <GPIO Interface>

The board provides a programmable 8-bit digital I/O interface; you can use this general
purpose I/O port for system control like POS or KIOSK.

Connector: CN_DIO
Type: onboard 2 x 6-pin header, pitch=2.0mm

Pin Description Pin Description

1 Ground 2 Ground
3 GP0 4 GP4
5 GP1 6 GP5
7 GP2 8 GP6
9 GP3 10 GP7
11 VCC 12 +12V

CN_DIO

12 11

2 1

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2.13 <Serial Port Jumper Setting >

The board provides two RS232 serial ports, with jumper selectable RS422/485 for
COM2.

Connector: CN_COM2
Type: 10-pin (5 x 2) 1.27mm x 2.54mm-pitch header for COM2

Pin Description Pin Description

1 DCD/422TX-/485- 2 RXD/422TX+/485+
3 TXD/422RX+ 4 DTR/422RX­5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N/C

JCSEL1 JCSEL2

11 1

12 2

11 1

RS-232

5 1

6 2

5 1

9 1

10 2

RS-485

RS-422

6 2

5 1

6 2

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9 1

10 2

CN_COM2

JCSEL1

5

6

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11

1

2

12

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2.14 <Power and Fan Connector >

The board requires DC input with 4-pin hear, the input voltage range is from 9V to 24V,
for the input current, please take a reference of the power consumption report on
appendix.

2.14.1 <Power Input>

Connector: DC_IN

Type: 4-pin header

Pin Description Pin Description

1 Ground 4 +12V
2 Ground 3 +12V

Remark: DC input voltage range 9~24V

DC_IN
4 3

2 1

SYSFAN

3

DC_OUT

4

1

1

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LE-374 User’s Manual

2.14.2 <Power Output>

Connector: DC_OUT
Type: 4-pin connector for +5V/+12V output

Pin Description Pin Description Pin Description Pin Description

1 +12V 2 Ground 3 Ground 4 +5V

Note: Maximum output current 12V/3A, 5V/3A

2.14.3 <Fan Connector>

Connector: SYSFAN
Type: 3-pin fan wafer connector

Pin Description Pin Description Pin Description

1 Ground 2 +12V 3 Fan Control

Connector: CPUFAN
Type: 4-pin P-type connector

Pin Description Pin Description

1 Ground 2 +12V
3 Fan Speed Detection 4 Sense

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2.15 <Indicator and Switch>

The JFRNT provides front control panel of the board, such as power button, reset and
beeper, etc. Please check well before you connecting the cables on the chassis.

Connector: JFRNT
Type: onboard 14-pin (2 x 7) 2.54-pitch header

Function Signal PIN Signal Function

IDE LED

Reset

Power
Button

HDLED+ 1 2 PWRLED+

Power

HDLED- 3 4 N/C

LED

Reset+ 5 6 PWRLED-

Reset- 7 8 SPK+

N/C 9 10 N/C

Speaker

PWRBT+ 11 12 N/C

PWRBT- 13 14 SPK-

JFRNT

13 1
14 2

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LE-374 User’s Manual

Chapter 3 <System Configuration>

3.1 <Video Memory Setup>

Based on Intel® 945GSE chipset with GMA (Graphic Media Accelerator) 950, the board
supports Intel® DVMT (Dynamic Video Memory Technology) 3.0, which would allo w the
video memory to be allocated up to 224MB.
To support DVMT, you need to install the Intel GMA 950 Driver with supported OS.

BIOS Setup:

On-Chip Frame Buffer Size:

This item can let you select video memory which been allocated for legacy VGA and
SVGA graphics support and compatibility. The available option is 1MB and 8MB.

Fixed + DVMT Memory Size:

You can select the fixed amount and the DVMT amount at the same time for a
guaranteed video memory and additional dynamic video memory, please check the
table below for available setting.

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Notice:

1. The On-Chip Frame Buffer Size would be included in the Fixed Memory.
Please select the memory size according to this table.

System

Memory

128MB~255MB

256MB~511MB

512MB upper

On-Chip

Frame

Buffer Size

1MB 32MB 0MB 32MB
1MB 0MB 32MB 32MB
8MB 32MB 0MB 32MB
8MB 0 32MB 32MB
1MB 64MB 0MB 64MB
1MB 0 64MB 64MB
1MB 128MB 0MB 128MB
1MB 0 128MB 128MB
1MB 64MB 64MB 128MB
8MB 64MB 0MB 64MB
8MB 0 64MB 64MB
8MB 128MB 0MB 128MB
8MB 0 128MB 128MB
8MB 64MB 64MB 128MB
1MB 64MB 0 64MB
1MB 0 64MB 64MB
1MB 128MB 0 128MB
1MB 0 128MB 128MB
1MB 64MB 64MB 128MB
8MB 64MB 0 64MB
8MB 0 64MB 64MB
8MB 128MB 0 128MB
8MB 0 128MB 128MB
8MB 64MB 64MB 128MB

Fixed

Memory

Size

DVMT

Memory

Size

Total
Graphic
Memory

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LE-374 User’s Manual

3.2 <Audio Configuration >

The board provides 5.1 channel audio interface with driver installed, please install the
Realtek ALC655 audio driver in the CD before getting st art to enjoy the 5.1 channel
sound system.

1. Install REALTEK AC97 Audio driver.

2. Lunch the control panel and Sound Effect Manager.

3. Select Speaker Configuration.

4. Select the sound mode to meet your speaker system.

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Chapter 4 <BIOS Setup>

The motherboard uses the Award BIOS for the system configuration. The Award
BIOS in the single board computer is a customized version of the industrial standard
BIOS for IBM PC AT-compatible computers. It supports Intel x86 and compatible
CPU architecture based processors and computers. The BIOS provides critical
low-level support for the system central processing, memory and I/O sub-systems.

The BIOS setup program of the single board computer let the customers modif y the
basic configuration setting. The settings are stored in a dedicated battery-backed
memory, NVRAM, retains the information when the power is turned off. If the battery
runs out of the power, then the settings of BIOS will come back to the default setting.

The BIOS section of the manual is subject to change without notice and is provi ded
here for reference purpose only. The settings and configurations of the BIOS are
current at the time of print, and therefore they may not be exactly the same as that
displayed on your screen.

To activate CMOS Setup program, press ＜DEL＞ key immediately after you turn
on the system. The following message “Press DEL to enter SETUP” should appear in
the lower left hand corner of your screen. When you e nter the CMOS Setup Utility,
the Main Menu will be displayed as Figure 4-1. You can use arrow keys to select
your function, press ＜Enter＞ key to accept the selection and enter the sub-menu.

Figure 4-1 CMOS Setup Utility Main Screen

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Appendix A <I/O Port Pin Assignment>

A.1 <IDE Port>

Connector: IDE
Type: 44-pin (22 x 2) box header

Pin Description Pin Description

1 Reset 2 Ground
3 D7 4 D8
5 D6 6 D9
7 D5 8 D10
9 D4 10 D11
11 D3 12 D12
13 D2 14 D13
15 D1 16 D14
17 D0 18 D15
19 Ground 20 N/C
21 REQ 22 Ground
23 IOW-/STOP 24 Ground
25 IOR-/HDMARDY 26 Ground
27 IORDY/DDMARDY 28 Ground
29 DACK- 30 Ground
31 IRQ 32 N/C
33 A1 34 SD
35 A0 36 A2
37 CS1 38 CS3
39 ASP1 40 Ground
41 Vcc 42 Vcc
43 Ground 44 Ground

43

44

1

2

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A.2 <IrDA Port>

Connector: CN_IR
Type: 5-pin header for SIR Port

Pin Description

1 Vcc
2 N/C
3 IRRX
4 Ground
5 IRTX

A.3 < CRT Port >

Connector: CRT
Type: 15-pin D-sub female connector on rear panel

Pin Description Pin Description Pin Description

1 RED 6 Ground 11 N/C
2 GREEN 7 Ground 12 5VCDA
3 BLUE 8 Ground 13 HSYNC
4 N/C 9 LVGA5V 14 VSYNC
5 Ground 10 Ground 15 5VCLK

1 5

6

10

11
12

13
14
15

1
2
3
4
5

A.4 <Serial ATA Port>

Connector: SATA1/2
Type: 7-pin wafer connector

1 2 3 4 5 6 7

GND RSATA_TXP1 RSATA_TXN1 GND RSATA_RXN1 RSATA_RXP1 GND

1 7

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A.5 <Serial Port>

Connector: COM1
Type: 9-pin D-sub male connector on rear panel

Pin Description Pin Description

1 DCD 6 DSR
2 SIN 7 RTS
3 SO 8 CTS
4 DTR 9 RI
5 Ground

A.6 <LAN Port>

Connector: RJ45
Type: RJ45 connector with LED on rear panel

Pin 1 2 3 4 5 6 7 8

Description TRD0+ TRD0- TRD1+ TRD2+ TRD2- TRD1- TRD3+ TRD3-

5
4
3
2
1

9
8
7
6

1

8

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Appendix B <Flash BIOS>

B.1 BIOS Auto Flash Tool

The board is based on Award BIOS and can be updated easily by the BIOS auto
flash tool. You can download the tool online at the address below:

TUhttp://www.award.comUT
TUhttp://www.commell.com.tw/support/support.htmUT

File name of the tool is “awdflash.exe”, it’s the utility that can write the data into the
BIOS flash ship and update the BIOS.

B.2 Flash Method

1. Please make a bootable floppy disk.

2. Get the last .bin files you want to update and copy it into the disk.

3. Copy awardflash.exe to the disk.

4. Power on the system and flash the BIOS. (Example: C:/ awardflash XXX.bin)

5. Re-star the system.

Any question about the BIOS re-flash please contact your distributors or visit the
web-site at below:

http://www.commell.com.tw/support/support.htm

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Appendix C <System Resources>

C.1 <I/O Port Address Map>

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C.2 <Memory Address Map >

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C.3 < System IRQ Resources >

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Appendix D <Programming GPIO’s>

The GPIO can be programmed with the MSDOS debug program using simple
IN/OUT commands.The following lines show an example how to do this.

GPIO0…..GPIO7 bit0……bit7

-o 2E 87 ;enter configuration

-o 2E 87

-o 2E 29

-o 2F 40 ;enable GPIO function

-o 2E 07

-o 2F 07 Select Logic Device 7

-o 2E F0

-o 2F xx ;set GPIO as input/output; set ‘1’ for input,’0’for
output

-o 2E F1

-o 2F xx ;if set GPIO’s as output,in this register its value can
be set

Optional :

-o 2E F2

-o 2F xx ; Data inversion register ; ‘1’ inverts the current valus
of the bits ,’0’ leaves them as they are

-o 2E 30

-o 2F 01 ; active GPIO’s

For further information, please refer to Winbond W83627THF datasheet.

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Appendix E <Watch Dog timer Setting >

The watchdog timer makes the system auto-reset while it stops to work for a period. The
integrated watchdog timer can be setup as system reset mode by program.

Timeout Value Range

- 1 to 255

- Second or Minute

Program Sample

Watchdog timer setup as system reset with 5 second of timeout

2E, 87
2E, 87
2E, 07
2F, 08 Logical Device 8
2E, 30 Activate
2F, 01
2E, F5 Set as Second*
2F, 00
2E, F6 Set as 5
2F, 05

* Minute: bit 3 = 0; Second: bit 3 = 1

You can select Timer setting in the BIOS, after setting the time options, the system
will reset according to the period of your selection.

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Contact Information

Any advice or comment about our products and service, or
anything we can help you please don’t hesitate to contact with us.
We will do our best to support you for your products, projects and
business.

Taiwan Commate Computer Inc.

19F., No.94, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei City

Address

TEL [phone]
FAX [phone]

22102, Taiwan

Website

E-Mail

Facebook

Twitter https://twitter.com/Taiwan_Commate

TUhttp://www.commell.com.twUT
[e-mail] (General Information)

[e-mail] (Technical Support)

https://www.facebook.com/pages/Taiwan-Commate-Computer-Inc/547993955271899

Commell is our trademark of industrial PC division

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