Global American Inc. 3307940 User manual

User’s Manual
Single Board Computer
3307940
Version 2.0,
January 2007

Copyrights
This manual is copyrighted and all rights are reserved. It does not allow any non authorization in
copied, photocopied, translated or reproduced to any electronic or machine readable form in
whole or in part without prior written consent from the manufacturer.
In general, the manufacturer will not be liable for any direct, indirect, special, incidental or
consequential damages arising from the use of inability to use the product or documentation, even
if advised of the possibility of such damages. The manufacturer keeps the rights in the subject to
change the contents of this manual without prior notices in order to improve the function design,
performance, quality and reliability. The author assumes no responsibility for any errors or
omissions, which may appear in this manual, nor does it make a commitment to update the
information contained herein.
Trademarks
Intel is a registered trademark of Intel Corporation.
Award is a registered trademark of Award Software, Inc.
All other trademarks, products and or product's name mentioned herein are mentioned for
identification purposes only, and may be trademarks and/or registered trademarks of their
respective companies or owners.

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Table of Contents
1. INTRODUCTION.........................................................4
1.1 SPECIFICATIONS ..................................................................................5
1.2 PACKAGE CONTENTS ...........................................................................7
2. INSTALLATION............................................................7
2.1 LAYOUT.................................................................................................8
2.2 UNPACKING PRECAUTIONS..................................................................9
2.3 CLEAR CMOS SETUP........................................................................10
2.4 COMPACTFLASH MASTER/SLAVE MODE SETTING ..........................10
2.5 LVDS VOLTAGE MODE SETTING .....................................................11
3. CONNECTION......................................................................11
3.1 FLOPPY DISK DRIVE CONNECTOR ....................................................13
3.2 PCI E-IDE DISK DRIVE CONNECTOR ............................................13
3.3 PARALLEL PORT..................................................................................14
3.4 SERIAL PORTS....................................................................................15
3.5 KEYBOARD & PS/2 MOUSE CONNECTOR........................................16
3.6 EXTERNAL SWITCHES AND INDICATORS..........................................16
3.7 PS-ON CONNECTOR.........................................................................17
3.8 USB PORT CONNECTOR ...................................................................17
3.9 IRDA INFRARED INTERFACE PORT...................................................17
3.10 FAN CONNECTORS (FAN1)..........................................................18
3.11 AUDIO CONNECTOR.....................................................................18
3.12 EXTERNAL POWER CONNECTOR (J3)...........................................18
3.13 DIGITAL I/O CONNECTOR ............................................................19
3.14 DVI (OPTIONAL).........................................................................19
3.15 LVDS1 CONNECTOR...............................................................20
3.16 COMPACT FLASH STORAGE CARD SOCKET (J1).........................20
3.17 BACKLIGHT INVERTER CONNECTOR..............................................21

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APPENDIX A. WATCHDOG TIMER...............................................22
APPENDIX B: DIGITAL I/O ................................................................24
APPENDIX C. RESOURCES MAP....................................................26

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1. Introduction
Thanks for choosing 3307940 PENTIUM-M Single Board
Computer. The 3307940 board is a PCISA form factor
board equipped with high performance processor and
multi-mode I/O. It is designed for system manufacturers,
integrators, or VARs that want to provide all the
performance, reliability, and quality at a reasonable
price.
In addition, the 3307940 has a build-in AGP4X
VGA(Intel 852GM)with 3D graphics capabilities to
provide up to 2048x1536x16 color resolution. The
onboard VGA shares 8MB system DDR-SDRAM .
An advanced high performance super AT I/O chip –
Winbond W83627HF is used in the 3307940 board.
Both on-chip UARTs are compatible with the NS16C550.
The parallel port and IDE interface are compatible with
IBM PC/AT architecture.
The 3307940 has a built-in(ICH4) 10/100 Fast
Ethernet LAN port. It is fully integrated 10BASE-
T/100BASE-TX LAN solution with high performance
networking functions and low power features.
The 3307940 uses the advanced Intel 852GM chipset
which is 100% software compatible chipset with PCI 2.1
standard.

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1.1 Specifications
CPU  Intel Pentium-M/Celeron-M Processor
 Supports 400/533(optional) MHz FSB
Bus interface PCI/ISA
Bus speed ISA: 8MHZ, PCI: 33MHz,
DMA channels 7
Interrupt levels 15
Chipset INTEL 852GM (GMCH)/855GME(optional)
Real-time clock INTEL 82801DB(ICH4)
System memory
 One 184-pin DIMM socket
 Support DDR 200/266/333(855GME)
SDRAM
 Maximum memory is up to 1GB
ATA/100
IDE interface
 Up to four PCI enhanced IDE hard drives
 Can handle data transfer up to 100MB/s
 Compatible with existing ATA IDE
specifications
 There is no need to do any changes for
users’ current accessories
Floppy disk drive
interface
Supports up to two floppy disk drives,
5.25”(360KB and 1.2MB) and/or 3.5” (720KB,
1.44MB, and 2.88MB)
Serial ports
 COM1(RS-232) & COM2(RS-
232/RS422/RS485) with 16C550 UART (or
compatible) with 16-byte FIFO buffer
 Support up to 115.2Kbps
 Ports can be individually configured to
COM1, COM2 or disabled
Bi-directional
Parallel port Configurable to LPT or disabled. Supports EPP/ECP/SPP
Hardware monitor Built-in to monitor power supply voltage and fan
speed status

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IrDA port Supports Serial Infrared(SIR) and Amplitude
Shift Keyed IR(ASKIR) interface
USB port Supports 5 USB2.0/1.1 ports for future
expansion
Watch-dog timer
 Software programmable reset generated
when CPU does not periodically trigger the
timer
 The BIOS INT15 can be used to control the
watchdog and generate the system reset
VGA controller
 i852GM integrated graphic engine
 Share system DDR SDRAM 8M
 Screen Resolution: up to 2048x1536x16
Ethernet
 ICH4 Fast Ethernet controllers with IEEE
802.3u Auto-Negotiation support for
10BASE-T/100BASE-TX standard
 One RJ45 connector is located on the
mounting bracket for easy connection
 (The other RJ45 connector is optional)
Keyboard and PS/2
mouse connector
 A 6-pin mini-DIN connector is located on
the mounting bracket for easy connection
to a keyboard or PS/2 mouse
 For alternative application, a keyboard use
pin header connector are also available on
board
Digital
input/output
 Provides 4-bit digital input and 4-bit digital
output (+5V level)
Audio AC’97 Audio CODEC
Compact flash Can be used with a passive adapter (True IDE
Mode ) in a Type I/II Socket.
Power
consumption
( PENTIUM-M : 1.7GHz, 1GB DDR-266 SDRAM)
+5V @ 3.3 A ,+12V @ 1.7 A .
Recommended : 250-watt power supply or
higher
Operating
temperature 0°~ 60°C

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( *CPU needs cooler & silicone heat sink paste* )
WARNING ! 1. Never run the processor without the
heat sink (cooler)properly and firmly
attached.
1.2 Package Contents
 One 3307940 Single Board Computer
 One ATA/100 IDE cable
 One RS-232 and Printer Cable & One RS232/422/485
Cable with bracket
 One USB cable
 One Audio cable
 One PS/2 Y splitter cables for keyboard and mouse
connection
 One user’s manual
 One driver CD-ROM
If any of these items is missing or damaged, contact the
dealer from whom you purchased this product. Save the
shipping materials and carton in case you want to ship
or store the product in the future.
2. Installation

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This chapter describes how to install the 3307940. At first, the
layout of 3307940 is shown, and the unpacking information
that you should be careful is described. The jumpers and
switches setting for the 3307940's configuration are also
included.
2.1 Layout

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to static electric charges and can be damaged by a
sudden rush of power. To protect it from unintended
damage, be sure to follow these precautions:
 Ground yourself to remove any static charge before
touching 3307940 SBC. You can do it by using a
grounded wrist strap at all times or by frequently
touching any conducting materials that is connected to
the ground.
 Handle the 3307940 SBC by its edges. Don’t touch IC
chips, leads or circuitry if not necessary.
 Do not plug any connector or jumper while the power is
on.
Table of Jumpers
LABEL FUNCTION
JP1 CMOS state setting
JP2 CompactFlash Master(1-2)/Slave(2-3) setting
JP3 LVDS LCD power source 3.3V(1-2)/5v(2-3) setting
2.3 Clear CMOS Setup
If the user wants to clear the CMOS setup , the user
should close the JP1 (2-3) about 3 seconds, then open it
again. Set back to normal operation mode, open JP1.
•JP1 : Clear CMOS Setup
JP1 DESCRIPTION
1-2 Normal Operation
2-3 Clear CMOS Setup
WARNING !
When you change power between ATX to AT, be
sure to clear CMOS(Power ON) first .Otherwise,
the CPU Board may fail to Boot up.
2.4 CompactFlash Master/Slave Mode Setting

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JP2 : Master/Salve Mode Setting
JP2 DESCRIPTION
1-2 Master
2-3 Slave
2.5 LVDS Voltage Mode Setting
JP3 : 3.3V/5V Mode Setting
JP3 DESCRIPTION
1-2 3.3V
2-3 5V
3. Connection

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This chapter describes how to connect peripherals, switches and
indicators to the 3307940 board.
Table of Connectors
Label Function
IDE1 Ultra ATA100 Primary (40 Pin)
IDE2 Secondary IDE connectors (44 PIN )
FDD1 Floppy connector
LPT1 Parallel port connector
DIO1 Digital I/O
COM1 Serial port connector(10 Pin)
COM2 RS-232/422/485 connector(14 PIN)
J1 Compact Flash Storage Card Type II connector
IR1 IRDA infrared interface port
USB1 USB port connector
USB2 USB dual port connector
USB3 USB dual port connector
J4 LAN1 RJ45 (10/100) connectors
J5 LAN2 RJ45(10/100/1000(optional)) connectors
KBM1 6-pin Mini-Din Keyboard & Mouse connector
KB1 External 5-pin Header Keyboard Connector
FAN1 FAN connector
CN3 External switches and indicators
CD-IN Audio CD IN connector
CN4 Backplane to CPU board ATX power control Connector
DVI DVI DISPLAY( Optional)
LVDS1 LVDS1 CONNECTOR
CN1 Backlight Inverter Connector

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3.1 Floppy Disk Drive Connector
The 3307940 board is equipped with a 34-pin daisy-
chain drive connector cable.
•FDD1 : FDC Connector
PIN
NO. DESCRIPTI ON PIN NO. DESCRIPTION
1 GROUND 2 REDUCE WRITE
3 GROUND 4 N/C
5 N/C 6 N/C
7 GROUND 8 INDEX#
9 GROUND 10 MOTOR ENABLE A#
11 GROUND 12 DRIVE SELECT B#
13 GROUND 14 DRIVE SELECT A#
15 GROUND 16 MOTOR ENABLE B#
17 GROUND 18 DIRECTION#
19 GROUND 20 STEP#
21 GROUND 22 WRITE DATA#
23 GROUND 24 WRITE GATE#
25 GROUND 26 TRACK 0#
27 GROUND 28 WRITE PROTECT#
29 N/C 30 READ DATA#
31 GROUND 32 SIDE 1 SELECT#
33 N/C 34 DISK CHANGE#
3.2 PCI E-IDE Disk Drive Connector
You can attach four IDE( Integrated Device Electronics)
hard disk drives on two channels. These connectors
support Ultra-DMA100 IDE devices. Non-DMA100
devices are suggested to be connecting to the secondary
IDE connector.
IDE 1 : Primary IDE Connector
IDE 2 : Secondary IDE Connector
•IDE1 Interface Connector(2.54mm Pitch)
PIN
NO. DESCRIPTION PIN NO. DESCRIPTION
1 RESET# 2 GROUND
3 DATA 7 4 DATA 8
5 DATA 6 6 DATA 9
7 DATA 5 8 DATA 10

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9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 N/C
21 N/C 22 GROUND
23 IOW# 24 GROUND
25 IOR# 26 GROUND
27 N/C 28 BALE – DEFAULT
29 N/C 30 GROUND – DEFAULT
31 INTERRUPT 32 IOCS16#-DEFAULT
33 SA1 34 N/C
35 SA0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND
•IDE2 Interface Connector (2.0mm Pitch)
PIN
NO. DESCRIPTION PIN NO. DESCRIPTION
1 RESET# 2 GROUND
3 DATA 7 4 DATA 8
5 DATA 6 6 DATA 9
7 DATA 5 8 DATA 10
9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 N/C
21 N/C 22 GROUND
23 IOW# 24 GROUND
25 IOR# 26 GROUND
27 N/C 28 BALE – DEFAULT
29 N/C 30 GROUND – DEFAULT
31 INTERRUPT 32 IOCS16#-DEFAULT
33 SA1 34 N/C
35 SA0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND
41 VCC 42 VCC
43 GROUND 44 N/C
3.3 Parallel Port
This port is usually connected to a printer. The

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3307940 includes an on-board parallel port
accessed through a 26-pin flat-cable connector.
•LPT1 : Parallel Port Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 STROBE# 14 AUTO FORM FEED #
2 DATA 0 15 ERROR#
3 DATA 1 16 INITIALIZE
4 DATA 2 17 PRINTER SELECT LN#
5 DATA 3 18 GROUND
6 DATA 4 19 GROUND
7 DATA 5 20 GROUND
8 DATA 6 21 GROUND
9 DATA 7 22 GROUND
10 ACKNOWLEDGE 23 GROUND
11 BUSY 24 GROUND
12 PAPER EMPTY 26 GROUND
13 PRINTER SELECT 26 GROUND
3.4 Serial Ports
The 3307940 offers two high-speed NS16C550
compatible UART.
COM1 : 10-pin header onboard
COM2 : 14-pin header onboard
Connector Ports Address Interrupt
COM1 COM1 3F8 IRQ4
COM2 COM2 2F8 IRQ3
•Serial Port 10(14)-pin Connector
PIN
NO. DESCRIPTION PIN NO. DESCRIPTION
1 DATA CARRIER
DETECT (DCD) 2 DATA SET READY
(DSR)
3 RECEIVE DATA
(RXD) 4 REQUEST TO SEND
(RTS)
5
T
RANSMIT DATA
(TXD) 6 CLEAR TO SEND
(CTS)
7 DATA TERMINAL
READY (DTR) 8 RING INDICATOR (RI)
9 GROUND 10 NC
(11) RS-422 TX+
RS-485 Data+ (12) RS-422 TX- RS-485 Data-

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(13) RS-422 RX+ (14) RS-422 RX-
3.5 Keyboard & PS/2 Mouse Connector
A 6-pin mini DIN connector is located on the mounting
bracket for easy connection to a keyboard or a PS/2
mouse. The card comes with a PS/2 Y splitter cables for
keyboard and mouse connection.
•KBM1 : 6-pin Mini-DIN Keyboard Connector
PIN NO. DESCRIPTION
1 KEYBOARD DATA
2 MOUSE DATA
3 GROUND
4 +5V
5 KEYBOARD CLOCK
6 MOUSE CLOCK
For alternative application, a keyboard and a PS/2
mouse pin header connectors are also available on board.
•KB1 : 5-pin Header Keyboard Connector
PIN NO. DESCRIPTION
1 KEYBOARD CLOCK
2 KEYBOARD DATA
3 N/C
4 GROUND
5 +5V
3.6 External Switches and Indicators
There are several external switches and indicators for
monitoring and controlling the CPU board. All the
functions are in the CN3 connector.
CN3 : External Switches and Indicators
PIN DESCRIPTION PIN DESCRIPTION
1 +5V 2 Speaker +
Power LED 3 GND 4 N/C
5 BUTTON PIN1 6 N/CATX POWER
BUTTON 7 BUTTON PIN2 8 Speaker -
Speaker
9 HDD LED + 10 Reset PIN1

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HDD LED 9 HDD LED + 10 Reset PIN1 Reset
Button
11 HDD LED - 12 Reset PIN2
3.7 PS-ON Connector
•CN4 : Backplane to CPU board Connector
PIN NO. DESCRIPTION
1 GND
2 ATX-ON
3 5VSB
Power source from Backplane with ATX Connector
(Through Power Button & +5VSB)
3.8 USB Port Connector
The 3307940 provides 2 built-in USB2.0 ports for the
future I/O bus expansion.
USB2&USB3
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VCC 2 GROUND
3 DATA0- 4 DATA1+
5 DATA0+ 6 DATA1-
7 GROUND 8 VCC
3.9 IrDA Infrared Interface Port
The 3307940 has a built-in IrDA port which supports
Serial Infrared (SIR) or Amplitude Shift Keyed IR (ASKIR)
interface. If you want to use the IrDA port, you have to
configure SIR or ASKIR model in the BIOS under
Peripheral Setup COM2. Then the normal RS-232 COM 2
will be disabled.
•IR1: IrDA connector
PIN NO. DESCRIPTION
1 VCC
2 NC
3 IR-RX
4 Ground
5 IR-TX
6 NC

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3.10 Fan Connectors (FAN1)
The 3307940 provides two CPU cooling fan connectors,
These connectors can supply 12V/500mA to the cooling fan. All
connectors have the same pin assignments and provide a
"rotation" pin to get rotation signals from fans and notice the
system. So the system BIOS can recognize the fan speed.
Please note that only specified fan can issue the rotation signals.
•Fan Connector
PIN NO. DESCRIPTION
1 GROUND
2 +12V
3 Rotation Signal
3.11 AUDIO Connector
The 3307940 has a built-in AC’97 AUDIO CODEC
connector directly connects to the pin-header (AUDIO1).
AUDIO1
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 SPEAK(L) 2 SPEEAK(R)
3 GND 4 GND
5 LINE_OUT(L) 6 LINE_OUT(R)
7 LINEIN(L) 8 LINEIN(R)
9 GND 10 GND
11 MIC 12 GND
CDIN1 : CD-IN
PIN NO. DESCRIPTION
1 CD LEFT SIGNAL
2 GROUND
3 GROUND
4 CD RIGHT SIGNAL
3.12 External Power Connector (J3)
The 3307940 has an onboard external power connector J3.
You can apply power directly to the CPU board.
•J3:External Power Connector

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PIN NO. DESCRIPTION
1 +5V
2 GROUND
3 GROUND
4 +12V
3.13 Digital I/O Connector
One characteristic of digital circuit is its fast response to high or
low signal. This kind of response is highly needed for harsh and
critical industrial operating environment. That’s why we design 4-
bit digital inputs and 4-bit digital outputs on the 3307940 Digital
Input and Output, generally, are control signals. You can use
these signals to control external devices that needs On/Off circuit
or TTL devices.
•DIO1: Digital I/O DIO1
PIN
NO. DESCRIPTION
PIN
NO. DESCRIPTION
1 GND 2 +5V
3 OUT0 4 OUT1
5 OUT2 6 OUT3
7 IN0 8 IN1
9 IN2 10 IN3
3.14 DVI (Optional)
The 3307940 provides DVI interface for your DVI display.
•DVI1 : DVI Connector
PIN DESCRIPTION PIN DESCRIPTION
1 DATA2- 14 Vcc
2 DATA2+ 15 GND
3 GND 16 HP_DET
4 NC 17 DATA0-
5 NC 18 DATA0+
6 DDCCLK 19 GND
7 DDCDATA 20 NC
8 NC 21 NC
9 DATA1- 22 GND-
10 DATA1+ 23 CLK+