ADLINK LittleBoard 735 Reference Manual

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LittleBoard™ 735

Single Board Computer

Reference Manual

P/N 50-1Z020-1020

Notice Page

DISCLAIMER

ADLINK Technology, Incorporated makes no representations or warranties with respect to the contents of this manual or of the associated ADLINK products, and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. ADLINK shall under no circumstances be liable for incidental or consequential damages or related expenses resulting from the use of this product, even if it has been notified of the possibility of such damages. ADLINK reserves the right to revise this publication from time to time without obligation to notify any person of such revisions. If errors are found, please contact ADLINK at the address shown at the bottom of this notice.

TRADEMARKS

CoreModule and the Ampro logo are registered trademarks, and ADLINK, Little Board, LittleBoard, MightyBoard, MightySystem, MilSystem, MiniModule, ReadyBoard, ReadyBox, ReadyPanel, ReadySystem, and RuffSystem are trademarks of ADLINK Technology, Inc. All other marks are the property of their respective companies.

REVISION HISTORY

Revision Reason for Change Date

00 Initial Release April/09

2.0 Revised PCI-to-ISA section in ch 4; revised +5V to be default JP5 setting in Tab le 2- 3; revised environmental specifications in

Tab le 2- 5; added Ta ble 2 -7 for cooling solutions; revised

Appendix A

1010 Replaced EOL Ethernet chip; revised locations of components

and connectors; added active heatsink

1020 Added J47 and J48 LAN LED headers (replaced fast

RJ-45 with Gigabit RJ-45 in rev 1010); re-defined pins 1 and 3

in Tab le 3-1 3; changed Serial Console to Remote Access in

Ch 3 & 4; revised function definitions in Tab le 2-1; changed

description of J3 in Tab le 2- 2; added fan voltage caution to

Ch 3; revised BIOS Setup procedures in Ch 4; added BIOS

Setup Utility section to Ch 4; updated index

April/10

Nov/10

May/12

ADLINK Technology, Incorporated 5215 Hellyer Avenue, #110 San Jose, CA 95138-1007 Tel. 408 360-0200 Fax 408 360-0222 www.adlinktech.com © Copyright 2009, 2010, 2011, 2012 ADLINK Technology, Incorporated

Audience

This manual provides reference only for computer design engineers, including but not limited to hardware and software designers and applications engineers. ADLINK Technology, Inc. assumes you are qualified to design and implement prototype computer equipment.

ii Reference Manual LittleBoard 735

Contents

Chapter 1 About This Manual ....................................................................................................1

Purpose of this Manual ....................................................................................................................1

References ......................................................................................................................................1

Chapter 2 Product Overview......................................................................................................3

EBX Architecture..............................................................................................................................3

Product Description..........................................................................................................................4

Board Features ..........................................................................................................................5

Block Diagram ............................................................................................................................7

Major Components (ICs)..................................................................................................................8

Headers and Connectors ...............................................................................................................12

Jumper Header Definitions ............................................................................................................15

Specifications.................................................................................................................................17

Physical Specifications .............................................................................................................17

Mechanical Specifications ........................................................................................................17

Environmental Specifications ..................................................................................................18

Power Specifications .............................................................................................................18

Thermal/Cooling Requirements ...............................................................................................19

Chapter 3 Hardware .................................................................................................................21

Overview .......................................................................................................................................21

Interrupt Channel Assignments .....................................................................................................22

Memory Map .................................................................................................................................23

I/O Address Map ...........................................................................................................................23

Floppy Drive Interface ...................................................................................................................24

Parallel Port Interface ...................................................................................................................25

Serial Interfaces ...........................................................................................................................26

Utility Interfaces ............................................................................................................................29

Utility 1 Interface ....................................................................................................................30

Keyboard ..........................................................................................................................30

External Battery ..................................................................................................................30

Power-On LED ...................................................................................................................30

Reset Switch .......................................................................................................................30

Speaker ............................................................................................................................30

Utility 2 Interface ......................................................................................................................31

System Management Bus (SMBus) .................................................................................31

Mouse .................................................................................................................................31

Power Button .......................................................................................................................31

USB Interfaces ..............................................................................................................................32

USB 2.0 Support.......................................................................................................................32

Legacy USB Support ...............................................................................................................32

USB0 and USB1 ......................................................................................................................33

USB2 and USB3 .......................................................................................................................33

USB4 and USB5 ......................................................................................................................34

Audio Interface...............................................................................................................................34

Video Interfaces .........................................................................................................................35

VGA Interface ........................................................................................................................36

LVDS Interface .....................................................................................................................36

TV-Out Interface ....................................................................................................................37

LittleBoard 735 Reference Manual iii

Contents

Power Interfaces .......................................................................................................................... 38

Power-In Interface ................................................................................................................... 38

ATX Power-On Interface .....................................................................................................38

Power Button and Reset Switch Interface ............................................................................. 38

Miscellaneous ............................................................................................................................... 39

Real Time Clock (RTC) ........................................................................................................... 39

Temperature Monitoring .......................................................................................................... 39

User GPIO Signals .................................................................................................................. 39

SMBus Interface ...................................................................................................................... 40

Oops! Jumper (BIOS Recovery) ........................................................................................... 40

Remote Access ........................................................................................................................ 40

Remote Access Setup ........................................................................................................ 41

Hot (Serial) Cable .............................................................................................................. 41

Watchdog Timer....................................................................................................................... 41

Optional CPU Fan .............................................................................................................. 42

GLAN1 LED ........................................................................................................................ 42

GLAN2 LED ............................................................................................................................. 42

Battery Input ............................................................................................................................ 43

Chapter 4 BIOS Setup .............................................................................................................. 45

Introduction.................................................................................................................................... 45

Entering BIOS Setup (Local Video Display) ............................................................................. 45

Entering BIOS Setup (Remote Access) .................................................................................. 45

PCI-to-ISA Bridge Mapping .......................................................................................................... 46

Logo Screen Utility (Splash Screen) .............................................................................................46

Logo Screen Image Requirements ......................................................................................... 46

BIOS Setup Menus........................................................................................................................ 47

BIOS Main Setup Screen ........................................................................................................ 47

BIOS Advanced Setup Screen ................................................................................................ 48

BIOS PCIPnP Setup Screen ................................................................................................... 54

BIOS Boot Setup Screen ........................................................................................................ 55

BIOS Security Setup Screen ................................................................................................... 57

BIOS Chipset Setup Screen .................................................................................................... 58

BIOS Exit Setup Screen .......................................................................................................... 59

Appendix A Technical Support ..................................................................................................61

Index .................................................................................................................................................. 63

List of Figures

Figure 2-1. Stacking PC/104 Modules with the LittleBoard 735 ................................................ 4

Figure 2-2. Functional Block Diagram ....................................................................................... 7

Figure 2-3. Component Locations (Top Side).......................................................................... 10

Figure 2-4. Component Locations (Bottom Side) .................................................................... 11

Figure 2-5. Pin Sequence Identification................................................................................... 13

Figure 2-6. Connector Locations (Top Side)............................................................................ 14

Figure 2-7. Jumper Header Locations (Top Side) ................................................................... 16

Figure 2-8. LittleBoard 735 Dimensions .................................................................................. 17

Figure 3-1. RS485 Serial Port Implementation ........................................................................ 26

Figure 3-2. Oops! Jumper Connection..................................................................................... 40

Figure 3-3. Hot Cable Jumper ................................................................................................. 41

Figure 4-1. BIOS Main Setup Screen ...................................................................................... 47

iv Reference Manual LittleBoard 735

Figure 4-2. BIOS Advanced Setup Screen...............................................................................48

Figure 4-3. BIOS PCIPnP Setup Screen..................................................................................54

Figure 4-4. BIOS Boot Setup Screen .......................................................................................55

Figure 4-5. BIOS Security Setup Screen..................................................................................57

Figure 4-6. BIOS Chipset Setup Screen ..................................................................................58

Figure 4-7. BIOS Exit Setup Screen.........................................................................................59

List of Tables

Table 2-1. Major Integrated Circuit Descriptions and Functions ...............................................8

Table 2-2. Header and Connector Descriptions......................................................................12

Table 2-3. Jumper Settings .....................................................................................................15

Table 2-4. Weight and Footprint Dimensions..........................................................................17

Table 2-5. Environmental Requirements.................................................................................18

Table 2-6. Power Supply Requirements .................................................................................18

Table 2-7. ADLINK Optional Cooling Solutions.......................................................................19

Table 3-1. Interrupt Channel Assignments..............................................................................22

Table 3-2. Memory Map ..........................................................................................................23

Table 3-3. I/O Address Map ....................................................................................................23

Table 3-4. Parallel Interface Pin Signals (J16)........................................................................25

Table 3-5. Serial A Interface Pin Signals (J11) .......................................................................27

Table 3-6. Serial B Interface Pin Signals (J12) .......................................................................28

Table 3-7. Utility 1 Interface Pin Signals (J15) ........................................................................30

Table 3-8. SMBus Reserved Addresses .................................................................................31

Table 3-9. Utility 2 Interface Pin Signals (J13) ........................................................................31

Table 3-10. USB 0 & 1 Interface Pin Signals (J44) ...................................................................33

Table 3-11. USB 2 & 3 Interface Pin Signals (J14) ...................................................................33

Table 3-12. USB 4 & 5 Interface Pin Signals (J39) ...................................................................34

Table 3-13. Audio Interface Pin Signals (J9).............................................................................34

Table 3-14. VGA Interface Pin Signals (J3) ..............................................................................36

Table 3-15. LVDS Interface Pin Signals (J26) ..........................................................................36

Table 3-16. TV-Out Pin Signals (J36) .......................................................................................37

Table 3-17. Power-In Interface Pin Signals (J19) .....................................................................38

Table 3-18. ATX Power-On Interface Pin Signals (J30)............................................................38

Table 3-19. Power Button Interface Pin Signals (J46) ..............................................................38

Table 3-20. User GPIO Pin Signals (J40) .................................................................................39

Table 3-21. SMBus Pin Signals (J45) .......................................................................................40

Table 3-22. Optional CPU Fan (J34) ........................................................................................42

Table 3-23. Ethernet External LED Pin Signal Descriptions (J47) ............................................42

Table 3-24. Ethernet External LED Pin Signal Descriptions (J48) ............................................42

Table 3-25. External Battery Input Header (J35) .....................................................................43

Table 4-1. BIOS Setup Menus ................................................................................................47

Table A-1. Technical Support Contact Information..................................................................61

Contents

LittleBoard 735 Reference Manual v

Contents

vi Reference Manual LittleBoard 735

Chapter 1 About This Manual

Purpose of this Manual

This manual is for designers of systems based on the LittleBoard™ 735 single board computer (SBC). This manual contains information that permits designers to create an embedded system based on specific design requirements.

Information provided in this reference manual includes:

• LittleBoard 735 specifications

• Environmental requirements

• Major integrated circuits (chips) and features implemented

• LittleBoard 735 connector/pin numbers and definitions

• BIOS Setup information

Information not provided in this reference manual includes:

• Detailed chip specifications

• Internal component operation

• Standard connector pin-out tables

• Internal registers or signal operations

• Bus or signal timing for industry standard busses and signals

References

The following list of references may be helpful for you to complete your design successfully.

Specifications:

• EBX Spec Revision 2.0, March 1, 2005

For the latest version of the EBX specifications, contact the PC/104 Consortium, at:

Web site: h

• PCI Express Mini Card Spec Revision 1.0

For latest revision of the PCI Express Mini Card specifications, contact the PCI Special Interest Group Office, at:

Web site: http://www.pcisig.com/specifications/pciexpress/mini

• PC/104 Spec Revision 2.5, November 2003

• PC/104-Plus Spec Revision 2, November 2003

For latest revision of the PC/104 specifications, contact the PC/104 Consortium, at:

Web site: http://www.pc104.org

• PCI 2.2 Compliant Specifications

ttp://www.pc104.org

For latest revision of the PCI specifications, contact the PCI Special Interest Group Office at:

Web site: http://www.pcisig.com

LittleBoard 735 Reference Manual 1

Chapter 1 About This Manual

• AMI BIOS Core 8 User’s Guide

Web site: http://www.ami.com/support/doc/MAN-EZP-80.pdf

Chip specifications used on the LittleBoard 735:

• Intel Corporation and the Atom N270 processor used for the embedded CPU.

Web site: http://download.intel.com/design/processor/datashts/320032.pdf

• Intel Corporation and the 82945GSE and 82801GBM chips, used for the Memory Hub/Video controller

and I/O Hub, respectively.

Web site: http://download.intel.com/design/processor/datashts/309219.pdf

Web site: http://www.intel.com/Assets/PDF/datasheet/307013.pdf

= I/O Hub

= Memory Hub

• Intel Corporation and the 82574IT chips (2), used for the Gigabit Ethernet controllers, respectively.

Web site: http://download.intel.com/design/network/datashts/82574.pdf

= Gigabit Ethernet

• Standard Microsystems Corp and the SCH3114I-NU chip, used for the Super I/O controller.

Web site: http://www.smsc.com/main/catalog/sch311x.html

• Realtek and the ALC203 chip, used for the Audio CODEC.

Web site: http://www.realtek.com.tw/search/default.aspx?keyword=ALC203

• ITE Tech. Inc. and the IT8888F chip, used for the PCI-to-ISA bridge conversion.

Web site: http://www.ite.com.tw/EN/products_more.aspx?CategoryID=3&ID=5,76

NOTE If you are unable to locate the datasheets using the links provided, go to the

manufacturer’s web site where you should be able to perform a search using the chip datasheet number or name listed, including the extension, htm, pdf, etc.

2 Reference Manual LittleBoard 735

Chapter 2 Product Overview

This introduction presents general information about the EBX architecture and the LittleBoard 735 single board computer (SBC). After reading this chapter you should understand:

• EBX Architecture

• LittleBoard 735 Description

• LittleBoard 735 Features

• Block Diagram

• Major Components

• Headers and Connectors

• Jumper Headers

• Specifications (physical, environmental, power, cooling)

EBX Architecture

The “Embedded Board, eXpandable” (EBX) standard is the result of a collaboration between industry leaders Motorola and Ampro to unify the embedded computing industry through a full featured embedded single-board computer (SBC) standard. The EBX standard principally defines physical size, mounting hole pattern, and power connector locations. It does not specify processor type or electrical characteristics. There are recommended connector placements for serial/parallel, Ethernet, graphics, and memory expansion.

Derived from the Ampro LittleBoard form-factor originated in 1984, EBX combines a standard footprint with open interfaces. The EBX form-factor is small enough for deeply embedded applications, yet large enough to contain the functions of a fully embedded SBC (Single Board Computer) including CPU, memory, mass storage interfaces, display controller, serial and parallel ports, today’s advanced operating systems, and other system functions. This embedded SBC standard ensures that embedded system OEMs can standardize their designs and that embedded computing solutions can be designed into space constrained environments with off-the-shelf components.

The EBX standard boasts highly flexible and adaptable system expansion, allowing easy and modular additions of functions such as USB 2.0 ports and Firewire or wireless networking not usually contained in standard product offerings. The EBX system expansion is based on popular existing industry standards, PC/ 104™ and PC/104-Plus™. PC/104 places the ISA bus on compact 3.6" x 3.8" modules with self-stacking capability. PC/104-Plus adds the power of a PCI bus to PC/104 while retaining the basic form-factor. Using PC/104 expansion cards, the PC/104 standard offers access to PC cards from the mobile and handheld computing markets.

The EBX standard integrates all these off-the-shelf standards into a highly embeddable SBC form-factor. EBX supports the legacy of PC/104, hosting the wide variety of embedded system oriented expansion modules from hundreds of companies worldwide. PC/104 brings the advantages of the latest portable and mobile system expansion technologies to embedded applications. See Figure 2-1 on page 4.

The EBX standard also brings stability to the embedded board market and offers OEMs assurance that a wide range of products will be available from multiple sources – now and in the future. The EBX standard is open to continuing technology advancements since it is processor independent. It creates opportunity for economies of scale in chassis, power supply, and peripheral devices.

The EBX specification is freely available to all interested. For further technical information on the EBX standard, go to the PC/104 Consortium web site at www.pc104.org.

LittleBoard 735 Reference Manual 3

Chapter 2 Product Overview

)

4-40 screws (4)

PC/104 Module

0.6 inch spacers (4)

PCI Stack

0.6 inch spacers (4)

through

Headers

4-40 nuts(4

Figure 2-1. Stacking PC/104 Modules with the LittleBoard 735

PC/104 Plus Module

ISA Bus Stackthrough Expansion Headers

Little Board735

Product Description

The LittleBoard 735 is an exceptionally high integration, high performance, rugged, and high quality singleboard system, which contains all the component subsystems of a PC motherboard plus the equivalent of up to 3 expansion boards. Based on the Intel Atom N270 low power, high-integration processor, the LittleBoard 735 gives designers a complete, high performance, embedded processor based on the EBX form factor and conforms to the EBX V2.0 specifications.

Each LittleBoard 735 incorporates an Intel 945GSE chipset for the Graphics and Memory Hub (Northbridge) and the I/O Hub (Southbridge) controllers. This set includes the 82945GSE, Graphics and Memory Controller Hub, (also GMCH), which controls the graphics and memory interface. The other chip in this set is the 82801GBM, I/O Controller Hub 7 Mobile (ICH7-M), which controls some of the I/O functions on the board. One additional chip provides the remainder of the I/O functions: the Standard Microsystems, SCH3114I-NU, Super I/O controller. Together the Intel and SMSC chips provide four serial ports, an EPP/ECP parallel port, six USB 2.0 ports, PS/2 keyboard and mouse interfaces, floppy, one Ultra/ DMA 33/66/100 IDE controller supporting Compact Flash, two independent 10/100/1000BaseT Ethernet interfaces, an audio AC’97 CODEC, PCIe Mini Card, GPIO, SMBus, and two SATA ports on the board. To provide the ISA bus on the board through the PC/104 connector, an ITE IT8888G-L, PCI-to-ISA Bridge is included. The LittleBoard 735 also supports up to 2GB of DDR2 RAM in a single 200-pin SODIMM slot, and a Graphics Media Accelerator (GMA), which provides VGA, TV Out, and LVDS flat panel video interfaces for most LCD panels and CRT monitors.

The LittleBoard 735 can be expanded through the PC/104 and PC/104-Plus expansion for additional system functions, as these buses offer compact, self-stacking, modular expandability. The PC/104 and PC/104-Plus buses are the embedded system versions of the signal set provided on a desktop PC’s ISA and PCI buses at 8MHz and 33MHz clock speeds, respectively.

LB735stackthru

Among the many embedded-PC enhancements on the LittleBoard 735 that ensure embedded system operation and application versatility are a Watchdog Timer, serial console support, battery-free boot, onboard, high-density Compact Flash socket, and BIOS extensions for OEM boot customization.

The LittleBoard 735 is particularly well suited to either embedded or portable applications and meets the size, power consumption, temperature range, quality, and reliability demands of embedded system applications. It can be stacked with ADLINK MiniModules™ or other PC/104-compliant expansion boards, or it can be used as a powerful computing engine.

4 Reference Manual LittleBoard 735

Chapter 2 Product Overview

Board Features

• CPU features

♦

Intel 1.6GHz LV, Atom N270 Processor

♦

512KB L2 cache

♦

533MHz FSB

• Memory

♦

Single standard 200-pin DDR2 SODIMM socket

♦

Supports non-ECC, unbuffered memory

♦

Supports +2.5V DDR2, 533MHz RAM up to 2GB

• PC/104-Plus Bus Interfaces

♦

PCI Bus up to 33MHz

♦

PCI 2.2 compliant signals

♦

PC/104 (ISA) Bus up to 8MHz

• IDE Interfaces

♦

Provides one enhanced IDE controller (Compact Flash)

♦

Supports Ultra DMA 33/66/100 modes

♦

Supports ATAPI and DVD peripherals

♦

Supports IDE native and ATA compatibility modes

• Floppy Disk Interface

♦

Supports one standard floppy disk drive interface

♦

Supports all standard PC/AT formats: 360KB, 1.2MB, 720KB, 1.44MB, 2.88MB

• Parallel Port

♦

Provides a standard printer interface

♦

Supports IEEE standard 1284 protocols of EPP and ECP outputs

♦

Supports Bi-directional data lines

♦

Supports 16 byte FIFO for ECP mode

• Serial Ports

♦

Four buffered serial ports with full handshaking

♦

Provides 16550-equivalent controllers, each with a built-in 16-byte FIFO buffer

♦

Supports full modem capability on three of the four ports

♦

Supports RS232, RS485, or RS422 operation on each port

♦

Supports programmable word length, stop bits, and parity

♦

Supports 16-bit programmable baud-rate generator and an interrupt generator

• USB Ports

♦

Provides three root USB hubs

♦

Provides up to six USB ports

♦

Supports USB boot devices

♦

Supports USB v2.0 EHCI and UHCI v1.1

♦

Supports over-current detection status

LittleBoard 735 Reference Manual 5

Chapter 2 Product Overview

• Keyboard/Mouse Interface

♦

Provides PS/2 keyboard interface

♦

Provides PS/2 mouse interface

• Audio Interface

♦

Provides AC’97 CODEC on board

♦

Supports AC’97 standard

• Ethernet Interface

♦

Provides two fully independent Gigabit Ethernet ports

♦

Provides integrated LEDs on each port (Link/Activity and Speed)

♦

Provides two Intel 82574IT controller chips

♦

Supports IEEE 802.3 10/100BaseT and 10/100/1000BaseT compatible physical layers

♦

Provides headers for two external Gigabit Ethernet LEDs

♦

Supports Auto-negotiation for speed, duplex mode, and flow control

♦

Supports full duplex or half-duplex mode

• Full-duplex mode supports transmit and receive frames simultaneously

• Supports IEEE 802.3x Flow control in full duplex mode

• Half-duplex mode supports enhanced proprietary collision reduction mode

• Video Interfaces (VGA/LVDS/TV Out)

♦

Support VGA (2048 x 1536) with up to 64MB UMA (Unified Memory Architecture)

♦

AGP 4X equivalent graphics performance

♦

Dual channel 9-, 12-, or 18-bit LVDS

♦

LVDS outputs (1 or 2 channel, four differential signals: 3-bits + clock)

♦

Provide one TV Out header

• Miscellaneous

♦

Real Time Clock (RTC) with replaceable battery

♦

Battery-free boot (boots even if battery is dead or missing)

♦

Supports both on-board or external battery for Real Time Clock operation

♦

Thermal and Voltage monitoring

♦

GPIO interface

♦

SMBus interface

♦

Oops! Jumper (BIOS recovery) support

♦

Remote Access

♦

Watchdog Timer (WDT)

6 Reference Manual LittleBoard 735

Chapter 2 Product Overview

Block Diagram

Figure 2-2 shows the functional components of the LittleBoard 735.

TV Out Header

VGA

Header

PC/104

Connector

ISA

PCI - ISA

Bridge

Gigabit

Ethernet

Controller

82574IT

with

Internal

Transformer

GLAN2

RJ45

Connector

LVDS

Header

SATA

Connectors (2)

PC/104-Plus

Bus Connector

PCIe x1 Port3

PCI Bus

PCIe x1 Port1

Gigabit

Ethernet

Controller

82574IT

with

Internal

Transformer

MDIMDI

GLAN1

RJ45

Connector

RS232

Transceiver

RS422/485 Transceiver

Intel Atom N270

Graphics

Memory Hub (Northbridge)

82945GSE

I/O Hub

(Southbridge)

82801GBM

[ICH7-M]

AC’97

CODEC

and

CPU

and

IDE

USB

LPC Bus

DDR2

SODIMM

SMBus Header

GPIO Header

Compact Flash

IDE Header

USB Port 0 USB Port 1 USB Port 2 USB Port 3

USB Port 4

USB Port 5

PCIe x1 Port2

Super I/O

SCH3114I-NU

Clock

SMBus

PCI Express

Mini Card Connector

Utility 1 - PS/2 keyboard, battery, reset, speaker

Utility 2 - PS/2 mouse, SMBus, power button

Floppy

Parallel

RS232

Transceiver

and

RS422/485 Transceiver

LB735_BlkDiag_c

COM 2

COM 1

COM 3

COM 4

Figure 2-2. Functional Block Diagram

LittleBoard 735 Reference Manual 7

Chapter 2 Product Overview

Major Components (ICs)

Table 2 -1 lists the major ICs on the LittleBoard 735, including a brief description of each. Figures 2-3 and 2-4 show the locations of the chips.

Table 2-1. Major Integrated Circuit Descriptions and Functions

Chip Type Mfg. Model Description Function

CPU (U1) Intel Atom N270 Single-core 1.6GHz, 2.5W

processor with on-die 512kB, 8way L2 cache

Graphics and Memory Chipset (U2)

I/O Hub (U4) Intel 82801GBM

Super I/O (U15 on back of the board) [See Figure 2-4]

Ethernet Controller 1 (U10)

Ethernet Controller 2 (U37)

ISA Bridge (U13) ITE IT8888F Interface between PCI bus and

Audio AC’97 CODEC (U14)

Intel 82945GSE Northbridge Graphics and

Memory controller hub

Southbridge Input/Output

(ICH7-M)

SMSC SCH3114I-NU Legacy I/O controller Provides

Intel 82574IT GLAN1 Gigabit Ethernet

Intel 82574IT GLAN2 Gigabit Ethernet

Realtek ALC203-LF Encoder and decoder of audio

controller hub

controller

ISA bus

data for transmission, storage, encryption, playback, or editing

Manages Northbridge graphics and memory hubs and Southbridge I/O hub

Provides graphics controller and memory controller

Provides interfaces and controllers for peripheral devices

LPC I/O functions for serial, floppy, parallel, and utility interfaces

Generates PCIe 10T/ 100TX/ 1000T Ethernet signals

Migrates legacy ISA bus

Supports 20bit DAC and 18-bit ADC resolutions

8 Reference Manual LittleBoard 735

Chapter 2 Product Overview

Table 2-1. Major Integrated Circuit Descriptions and Functions (Continued)

RS232 Transceiver (U17)

Analog Devices

ADM213EARSZ RS232 Transceiver for COM1

and COM2

Transmits and receives RS232 signals for serial ports 1 and 2

RS485/422 Transceiver (U19)

Linear LTC1334CG#PBF RS422/485 Transceiver for

COM1 and COM2

Transmits and receives RS485/422 signals for serial ports 1 and 2

RS232 Transceiver (U21)

Analog Devices

ADM213EARSZ RS232 Transceiver for COM3

and COM4

Transmits and receives RS232 signals for serial ports 3 and 4

RS485/422 Transceiver (U22)

Linear LTC1334CG#PBF RS422/485 Transceiver for

COM3 and COM4

Transmits and receives RS485/422 signals for serial ports 3 and 4

LittleBoard 735 Reference Manual 9

Chapter 2 Product Overview

Key: U1 - CPU U2 - Northbridge Memory Hub U4 - Southbridge I/O Hub U10 - GLAN1 Ethernet Controller U13 - PCI-to-ISA Bridge U14 - Audio CODEC U17 - RS232 Transceiver - COM1/COM2 U19 - RS485/422 Transceiver - COM1/COM2 U21 - RS232 Transceiver - COM3/COM4 U22 - RS485/422 Transceiver - COM3/COM4 U37 - GLAN2 Ethernet Controller

U14

U13

U21

U22

Figure 2-3. Component Locations (Top Side)

U10

U37

LB735_Comp_Top_d

10 Reference Manual LittleBoard 735

Chapter 2 Product Overview

Key: U15 - Super IO Controller J37 - PCI Express Mini Card Socket J38 - PCI Express Mini Card Latch

J37

J38

Figure 2-4. Component Locations (Bottom Side)

U15

LB735_Back_b

LittleBoard 735 Reference Manual 11

Chapter 2 Product Overview

Headers and Connectors

Table 2 -2 describes the headers and connectors shown in Figure 2-6 on page 14. All I/O headers use 0.100"

(2.54mm) pitch unless otherwise indicated.

Table 2-2. Header and Connector Descriptions

Jack # Name Description

BAT1 Battery Socket Battery socket for 3 volt Lithium battery

J1A,B, C,D

J2A,B, C,D

J3 Video (VGA) 12-pin, 0.079" (2mm), header for output to a VGA compatible display

J6 IDE 40-pin standard header for the primary IDE interface

J8 Compact Flash 50-pin, 0.050" (1.27mm), socket accepts Type I or Type II Compact Flash

J9 Audio In/Out 26-pin, 0.079" (2mm), header for all of the audio signals (input/output)

J10 GLAN1 8-pin, RJ45 connector for 10/100/1000BaseT Gigabit Ethernet port 1 with

J11 Serial A 20-pin header for serial ports 1 and 2 (COM 1 & COM 2)

J12 Serial B 20-pin header for serial ports 3 and 4 (COM 3 & COM 4)

J13 Utility 2 24-pin header for mouse, SMBus, and power button

J14 USB 2 & 3 10-pin, 0.079" (2mm) header for USB2 and USB3 ports

J15 Utility 1 16-pin header for keyboard, external battery, reset switch, and speaker

J16 Parallel 26-pin header for parallel port

J17 Floppy 34-pin header for floppy disk drive interface

J18 GLAN2 8-pin, RJ45 connector for 10/100/1000BaseT Gigabit Ethernet port 2 with

J19 Power In 7-pin, 0.156" (3.96mm), header for input power

J26 Video (LVDS) 30-pin, 0.079" (2mm), header for LVDS compatible video displays

J30 Power On 3-pin header for ATX power-on functions

J31 Memory 200-pin, 0.024" (0.60mm) socket for DDR2 SDRAM SODIMM

J32 SATA1 7-pin, 0.050" (1.27mm) standard connector for serial ATA

J33 SATA2 7-pin, 0.050" (1.27mm) standard connector for serial ATA

J34 Optional Fan 3-pin header provides +5V or +12V, tach, and ground to optional CPU fan

J35 Battery Input 2-pin, 0.049" (1.24mm) header for power from external battery

J36 TV Out

J37 PCI Express

PC/104 bus 104-pin standard connector for PC/104

PC/104-Plus 120-pin, 0.079" (2mm), standard connector for PCI bus

cards

magnetics

6-pin header for TV Out signals

52-pin, 0.012" (0.30mm) standard socket for PCI Express Mini Card Mini Card (on back of the board; see

Figure 2-4 on page 11)

functions

12 Reference Manual LittleBoard 735

Chapter 2 Product Overview

Table 2-2. Header and Connector Descriptions (Continued)

J38 Latch (on back

Latch for the PCI Express Mini Card connector of the board; see Figure 2-4

on page 11)

J39 USB 4 & 5 10-pin, 0.079" (2mm) header for USB4 and USB5 ports

J40 GPIO

J41 DNP

J42 DNP

J43 DNP

10-pin, 0.079" (2mm) header for General Purpose IO signals

Do not populate

J44 USB 0 & 1 10-pin, 0.079" (2mm) header for USB0 and USB1 ports

J45 SMBus

J46 Power On

5-pin, 0.049" (1.25mm) header for external device connection

5-pin header for power-on button and reset switch Button and

Reset Switch

J47 LED - GLAN1

J48 LED - GLAN2

5-pin, 0.049" (1.25mm) header for Gigabit Ethernet1 external LED

5-pin, 0.049" (1.25mm) header for Gigabit Ethernet2 external LED

NOTE The pinout tables in Chapter 3 of this manual identify pin sequence using the

following methods: A 20-pin header with two rows of pins, using odd/even numbering, where pin 2 is directly across from pin 1, is noted as 20-pin, 2 rows, odd/even (1, 2). Alternately, a 20-pin connector using consecutive numbering, where pin 11 is directly across from pin 1, is noted in this way: 20-pin, 2 rows, consecutive (1, 11). The second number in the parenthesis is always directly across from pin 1. See Figure 2-5.

20-pin, two rows, Odd/Even, (1, 2)

20-pin, two rows,

Consecutive, (1, 11)

678910

234

Figure 2-5. Pin Sequence Identification

15 1120

124

LB735_ConNum

LittleBoard 735 Reference Manual 13

Chapter 2 Product Overview

Key: BAT1 J1 J2 J3 J6 J8 J9 J10 J11 J12 J13 J14 J15 J16 J17 J18 J19 J26 J30 J31 J32 J33 J34 J35 J36 J39 J40 J41 J42 J43 J44 J45 J46 J47 J48 JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10

JP7

JP6

J48

J19

LB735_Conn_d

J30

J45

BAT1

J10

J18

Ethernet Grounding Pad

Board Grounding Pad

Figure 2-6. Connector Locations (Top Side)

CAUTION The two Ethernet ports share a common ground (transformer center tap),

that is floating until you determine how the common ground is connected. The grounding holes (8) of the LittleBoard 735 are connected to ground potential (return) of the DC power supply connected to the board through J19.

NOTE Pin 1 is shown as a black pin (square or round) on all headers in all illustrations.

14 Reference Manual LittleBoard 735

Chapter 2 Product Overview

Jumper Header Definitions

Table 2 -3 describes the jumper headers shown in Figure 2-7.

Table 2-3. Jumper Settings

Jumper # Installed Removed/Installed

JP1 – RTC (Real Time

Clock) Reset

JP2 – Power Management Power Up by S3 (pins 1-2)

JP3 – Serial Port 2 RS485 Termination

JP4 – Serial Port 1 RS485 Termination

JP5 – Fan Voltage Selection Enable +5V (pins 1-2) Default Enable +12V (pins 2-3)

JP6 – Compact Flash

Master/Slave

JP7 – Compact Flash Voltage Selection

JP8 – LVDS Voltage

Selection

JP9 – Serial Port 4

RS485 Termination

JP10 – Serial Port 3

RS485 Termination

Enable (pins 1-2) Disable (Removed) Default

Power Up by S5 (pins 2-3)

Default

Enable Termination (pins 1-2) Disable Termination (Removed)

Default

Enable Termination (pins 1-2) Disable Termination (Removed)

Default

Enable Slave (pins 1-2) Default [ATA Master]

Enable +5V (pins 1-2) Enable +3.3V (pins 2-3) Default

Enable +3.3V (pins 1-2) Default Enable +5V (pins 2-3)

Enable Termination (pins 1-2) Disable Termination (Removed)

Enable Master (pins 2-3) [ATA Slave]

Default

Note: Only the jumper headers listed above are populated on the board. Jumpers or shunts use .079"

(2mm) pitch.

LittleBoard 735 Reference Manual 15

Chapter 2 Product Overview

Key: JP1 - RTC Reset JP2 - Power Management JP3 - Serial2 RS485 JP4 - Serial1 RS485 JP5 - Fan Voltage JP6 - Compact Flash Master/Slave JP7 - Compact Flash Voltage JP8 - LVDS Voltage JP9 - Serial4 RS485 JP10 - Serial3 RS485

JP1

JP8

LB735_Jmpr_a

JP5

JP9

JP2

JP7

JP10

JP6

JP4

JP3

Figure 2-7. Jumper Header Locations (Top Side)

16 Reference Manual LittleBoard 735

Chapter 2 Product Overview

Specifications

Physical Specifications

Table 2 -4 lists the physical dimensions of the board.

Table 2-4. Weight and Footprint Dimensions

Item Dimension

Weight 0.280kg. (0.60lbs.)

Height (overall) 16.26mm (0.64")

Width 146mm (5.75")

Length 203mm (8.0")

Thickness 2.36mm (0.093")

Mechanical Specifications

Figure 2-8 shows the top side view of the LittleBoard 735 with mechanical mounting dimensions.

NOTE Overall height is measured from the

upper board surface to the highest permanent component (J10, RJ45 connector) on the upper board surface. This measurement does not include the various heatsinks on the board. The heatsinks increase this dimension. See

Table 2 -7.

0.20

2.65

5.80

0.20 00

2.80

LB735_Dimen_Top_d

5.70

7.22

7.60

NOTE All dimensions are given in inches.

LittleBoard 735 Reference Manual 17

0.20

Figure 2-8. LittleBoard 735 Dimensions

5.35

5.55

7.80

Chapter 2 Product Overview

Environmental Specifications

Table 2 -5 provides the most efficient operating and storage condition ranges required for this board.

Table 2-5. Environmental Requirements

Parameter 1.6GHz Atom N270

Conditions

Operating -20° to +70°C

(-4° to +158°F)

Extended (Optional)

Storage –55° to +85°C

Temperature

Operating 5% to 95%

Non-operating 5% to 95%

Humidity

–40° to +80°C (–40° to +176°F)

(–67° to +185°F)

relative humidity, non-condensing

Power Specifications

Table 2 -6 provides the power requirements for the LittleBoard 735.

Table 2-6. Power Supply Requirements

Parameter 1.6GHz Atom N270

Characteristics

Input Type Regulated DC voltages Regulated DC voltages Regulated DC voltages

Peak In-rush Current 8.00A (40.00W) 8.00A (40.00W) 8.00A (40.00W)

Idle Current 1.58A (7.91W) 1.50A (7.48W) 1.64A (8.22W)

BIT Current 3.17A (15.83W) 2.90A (14.52W) 3.25A (16.25W)

Operating configurations:

800MHz Atom N270 Characteristics w/clockdown speed from 1.6GHz

1.6GHz Atom N270 Characteristics w/fan

• In-rush operating configuration includes video, 1GB DDR2 RAM, and power.

• Idle operating configuration includes the in-rush configuration as well as one SATA hard drive, I/O

board, floppy drive, and PS/2 keyboard and mouse.

• BIT = Burn-In-Test. Operating configuration includes idle configuration as well as a second SATA hard

drive, four serial loop-backs, two Ethernet connections, four USB loop-backs, one USB flash drive, and one USB Compact Flash reader with 64MB Compact Flash.

18 Reference Manual LittleBoard 735

Chapter 2 Product Overview

Thermal/Cooling Requirements

The LittleBoard 735 is designed to operate at its maximum CPU speed of 1.6GHz and requires a cooling solution to cool the CPU, Memory Hub, I/O Hub and voltage regulators on the board. ADLINK offers two cooling solutions. (See Table 2-7.)

Table 2-7. ADLINK Optional Cooling Solutions

Cooling Solution Description Height of Cooling Solution

(without LittleBoard 735)

Passive Heatsink (without fan)

Active Heatsink (with fan)

NOTE These two cooling solutions exceed the standard height limitation described in

the EBX specification.

Qualified to maintain optimal performance up to +70°C.

Qualified to maintain optimal performance up to +80°C.

0.67" (17.06mm)

2.61" (66.42mm)

LittleBoard 735 Reference Manual 19

Chapter 2 Product Overview

20 Reference Manual LittleBoard 735

Chapter 3 Hardware

Overview

This chapter discusses the features of the LittleBoard 735 I/O interfaces in the following order:

• Interrupt Channel Assignments

• Memory Map

• I/O Address Map

• Floppy Interface

• Parallel Interface

• Serial Interfaces

• Utility Interfaces

♦

Keyboard

♦

Mouse

♦

Battery

♦

Power Button

♦

Reset Switch

♦

Speaker

♦

SMBus

• USB Interfaces

• Audio Interface

• Video Interfaces

♦

CRT

♦

LV DS

♦

TV Out

• Power Interfaces

♦

Power In

♦

ATX P o w e r O n

♦

Power Button

• Miscellaneous

♦

Time of Day/RTC

♦

Temperature Monitoring

♦

User GPIO Interface

♦

SMBus Interface

♦

Oops! Jumper (BIOS recovery)

♦

Remote Access

♦

Watchdog Timer

♦

Optional CPU fan

LittleBoard 735 Reference Manual 21

Chapter 3 Hardware

♦

External Battery Input

♦

Dual LED interfaces for Gigabit Ethernet

NOTE ADLINK Technology, Inc. only supports the features and options described in

this manual. The main integrated circuits (ICs) on the LittleBoard 735 may provide more features or options than are listed in this manual, and those features and options may not function as specified in the IC documentation.

This chapter does not include pinout tables for standard headers and connectors

such as PC/104, Ethernet RJ45, 40-pin IDE, Floppy, and Compact Flash.

Interrupt Channel Assignments

The interrupt channel assignments are shown in Table 3 -1.

Table 3-1. Interrupt Channel Assignments

Device vs IRQ No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Timer X

Keyboard X

Secondary Cascade X

COM1 O D O O

COM2 D O O O

COM3 O O O D

COM4 O O D O

Floppy X

Parallel O D O O

RTC X

IDE D

Math Coprocessor X

PS/2 Mouse X

PCI INTA Automatically Assigned

PCI INTB Automatically Assigned

PCI INTC Automatically Assigned

PCI INTD Automatically Assigned

PCI INTE Automatically Assigned

PCI INTF Automatically Assigned

PCI INTG Automatically Assigned

PCI INTH Automatically Assigned

Legend: D = Default, O = Optional, X = Fixed

NOTE The PCI IRQs for the Ethernet, Video, and Internal Local Bus are automatically

assigned by the BIOS Plug and Play logic. Local ISA IRQs assigned during initialization can not be used by external devices.

22 Reference Manual LittleBoard 735

Chapter 3 Hardware

Memory Map

The following table provides the common PC/AT memory allocations. Memory below 000500h is used by the BIOS.

Table 3-2. Memory Map

Base Address Function

00000000h - 0009FFFFh Conventional Memory

000A0000h - 000AFFFFh Graphics Memory

000B0000h - 000B7FFFh Mono Text Memory

000B8000h - 000BFFFFh Color Text Memory

000C0000h - 000CFFFFh Standard Video BIOS

000D0000h - 000DFFFFh Reserved for Extended BIOS*

000E0000h - 000EFFFFh Extended System BIOS Area

000F0000h - 000FFFFFh System BIOS Area (Storage and RAM Shadowing)

Top 0, 1, or 8MB of DRAM Integrated Graphics Memory

FFE00000h - FFFFFFFFh System Flash

* The BIOS contains a setting to forward memory to the ISA bus.

I/O Address Map

Table 3 -3 provides the list of I/O addresses on the LittleBoard 735.

Table 3-3. I/O Address Map

Address (hex) Subsystem

0000-000F Primary DMA Controller

0020-0021 Master Interrupt Controller

0040-0043 Programmable Interrupt Timer (Clock/Timer)

0060 Keyboard Controller

0061 NMI, Speaker control

0063 NMI Controller

0064 Keyboard Controller

0065 NMI Controller

0067 NMI Controller

0070-007F CMOS RAM, NMI Mask Reg, RT Clock

0080 System reserved

0081-0083 DMA Page Registers

0084-0086 System reserved

0087 DMA Page Register

0088 System reserved

0089-008B DMA Page Registers

008C-008E System reserved

008F DMA Page Register

0090-0091 System reserved

0092 Fast A20 gate and CPU reset

LittleBoard 735 Reference Manual 23

Chapter 3 Hardware

Table 3-3. I/O Address Map (Continued)

0093-009F System reserved

00A0-00A1 Slave Interrupt Controller

00A2-00BF System reserved

00C0-00DF Slave DMA Controller #2

00E0-00EF System reserved

00F0-00FF Math Coprocessor

01F0-01F7 IDE Hard Disk Controller

0200-0240h Mapped to ISA

0240-0260h Mapped to ISA

0279h Mapped to ISA

02E8-02EF Serial Port 4 (COM4)

02F8-02FF Serial Port 2 (COM2)

0300-0340h Mapped to ISA

0340-0360h Mapped to ISA

0378-037F Parallel Port (Standard and EPP)

03B0-03BB Video (monochrome)

03C0-03DF Video (VGA)

03E8-03EF Serial Port 3 (COM3)

03F0-03F5 Floppy Disk Controller

03F6 IDE Hard Disk Controller

03F7 Floppy Disk Controller

03F8-03FF Serial Port 1 (COM1)

04D0-04D1 Edge/Level Trigger PIC

0778-077F Parallel Port (ECP Extensions) (Port 378+400)

0A79h Mapped to ISA

0CF8-0CFF PCI Configuration Registers

0CF9 Reset Control Register

Floppy Drive Interface

The SCH3114I-NU (U15) chip provides the floppy controller and supports one floppy drive. The floppy signals are provided through a standard 34-pin header (J17). The floppy controller will support a 360k, 720k, 1.2M, 1.44M, or 2.88M drive.

The floppy drive header provides 34 pins, 2 rows, odd/even sequence (1, 2) with 0.100" (2.54mm) pitch.

24 Reference Manual LittleBoard 735

Chapter 3 Hardware

Parallel Port Interface

The parallel port supports standard parallel, Bi-directional, ECP, and EPP protocols. The SCH3114I-NU chip (U15) provides the parallel port interface signals.

The parallel header provides 26 pins, 2 rows, odd/even sequence (1, 2), with 0.100" (2.54mm) pitch.

Table 3-4. Parallel Interface Pin Signals (J16)

Pin # Signal In/Out Description

1 Strobe* Out Strobe* – This is an output signal used to strobe data into the printer.

I/O pin in ECP/EPP mode.

2 AFD* Out Auto Feed* – This is a request signal into the printer to automatically

feed one line after each line is printed.

3 PD0 I/O Parallel Port Data 0 – These pins (PD0 to PD7) provide parallel port

data.

4 ERR* Out Error* – This is a status output signal from the printer. A Low State

indicates an error condition on the printer.

5 PD1 I/O Parallel Port Data 1 – Refer to pin 3 for more information.

6 INIT* Out Initialize* – This signal used to Initialize printer. Output in standard

Mode, I/O in ECP/EPP mode.

7 PD2 I/O Parallel Port Data 2 – Refer to pin 3 for more information.

8 SLIN Out Select In – This output signal is used to select the printer. I/O pin in

ECP/EPP mode.

9 PD3 I/O Parallel Port Data 3 – Refer to pin 3 for more information.

10, 12

11 PD4 I/O Parallel Port Data 4 – Refer to pin 3 for more information.

13 PD5 I/O Parallel Port Data 5 – Refer to pin 3 for more information.

14, 16

15 PD6 I/O Parallel Port Data 6 – Refer to pin 3 for more information.

17 PD7 I/O Parallel Port Data 7 – Refer to pin 3 for more information.

18, 20

19 ACK* In Acknowledge* – This printer output status indicates it has received

21 BUSY In Busy – This printer output status indicates the printer is not ready to

22, 24

23 PE In Paper End – The printer output status indicates the printer is out of

25 SLCT In Select – This printer output status indicates the printer is selected and

26 Key/NC Key - Not connected

GND Ground

the data and is ready to accept new data if the signal state is Low.

accept data if the signal state is High.

GND Ground

paper if the signal state is High.

powered on if the signal state is High.

Note: The shaded table cells denote power or ground. The * symbol indicates the signal is Active Low.

LittleBoard 735 Reference Manual 25

Chapter 3 Hardware

Serial Interfaces

Two MAX213ECAI+ chips and two LTC1334CG#PBF chips provide the circuitry for the four serial ports. The two MAX213ECAI+ chips provide the RS232 mode, and the two LTC1334CG#PBF chips provide the RS485/RS422 modes. The four serial ports support the following features:

• Four individual 16550-compatible UARTs

• Programmable word length, stop bits and parity

• 16-bit programmable baud rate generator

• Interrupt generator

• Loop-back mode

• Four individual 16-bit FIFOs

• Serial A Interface (J11)

♦

Serial Port 1 (COM1) supports RS232/RS485/RS422 and full modem support

♦

Serial Port 2 (COM2) supports RS232/RS485/RS422 and full modem support

• Serial B Interface (J12)

♦

Serial Port 3 (COM3) supports RS232/RS485/RS422 and full modem support

♦

Serial Port 4 (COM4) supports RS232/RS485/RS422

NOTE The RS232 and RS485/RS422 modes can be selected for any serial port in BIOS

Setup under the Advanced menu. However, the RS232 mode is the default selection (Standard) for any serial port.

To implement the two-wire RS485 mode on any serial port, you must tie the equivalent pins together for each port.

For example, on Serial Port 1, tie pin 3 to pin 5 and pin 4 to pin 6 at the Serial A interface header (J11) as shown in Figure 3-1. As an alternate, tie pin 2 to pin 3 and pin 7 to pin 8 at the DB9 serial connector for Serial Port 1 as shown in Figure 3-1. Refer also to the following tables for the specific pin signals on each connector.

NOTE The RS422 mode uses a four-wire interface and does not require any pins tied

together, but you must select RS485 in BIOS Setup and make sure the termination jumper is removed.

Serial A Interface (J11) for Serial Port 1 (or COM1 Port)

Top View

Figure 3-1. RS485 Serial Port Implementation

Standard DB9 Serial

Port Connector (Male)

678910

234

Front View

Table 3 -5 defines the pins and corresponding signals for the Serial A interface header (Serial Ports 1 and 2)

and Tab le 3 -6 defines the pins and corresponding signals for the Serial B interface header (Serial Ports 3 and

4).

Both Serial A and B headers use 20 pins, 2 rows, odd/even sequence (1, 2) with 0.100" (2.54mm) pitch.

LB735RS485conn_b

26 Reference Manual LittleBoard 735

Chapter 3 Hardware

Table 3-5. Serial A Interface Pin Signals (J11)

Pin # Pin #

Signal Description

DB9

(COM1)

DCD1* Data Carrier Detect 1 – Indicates external serial communications device

is detecting a carrier signal (i.e., a communication channel is currently open). In direct connect environments, this input will be driven by DTR1 as part of the DTR/DSR handshake.

2 6 DSR1* Data Set Ready 1 – Indicates external serial communications device is

powered, initialized, and ready. Used as hardware handshake with DTR1 for overall readiness to communicate.

3 2 RXD1

RX1-

47RTS1*

Receive Data 1 – Serial port 1 receive data in.

RX1- – If in RS485 or RS422 mode, this pin is Receive Data 1 -.

Request To Send 1 – Indicates Serial port 1 is ready to transmit data. Used as hardware handshake with CTS1 for low level flow control.

TX1+

53TXD1

TX1-

68CTS1*

TX1+ – If in RS485 or RS422 mode, this pin is Transmit Data 1 +.

Transmit Data 1 – Serial port 1 transmit data out.

TX1- – If in RS485 or RS422 mode, this pin is Transmit Data 1 -.

Clear to Send 1 – Indicates external serial communications device is ready to receive data. Used as hardware handshake with RTS1 for low level flow control.

RX1+

RX1+ – If in RS485 or RS422 mode, this pin is Receive Data 1 -.

7 4 DTR1* Data Terminal Ready 1 – Indicates this Serial port is powered, initialized,

and ready. Used as hardware handshake with DSR1 for overall readiness to communicate.

8 9 RI1* Ring Indicator 1 – Indicates external serial communications device is

detecting a ring condition. Used by software to initiate operations to answer and open the communications channel.

10 NC KEY

GND Ground

Key

11 1

(COM2)

DCD2* Data Carrier Detect 2 – Indicates external serial communications device

Not connected

is detecting a carrier signal (i.e., a communication channel is currently open). In direct connect environments, this input will be driven by DTR2 as part of the DTR/DSR handshake.

12 6 DSR2* Data Set Ready 2 – Indicates external serial communications device is

powered, initialized, and ready. Used as hardware handshake with DTR2 for overall readiness to communicate.

13 2 RXD2

RX2-

14 7 RTS2*

Receive Data 2 – Serial port 2 receive data in.

RX1- – If in RS485 or RS422 mode, this pin is Receive Data 1 -.

Request To Send 2 – Indicates Serial port 2 is ready to transmit data. Used as hardware handshake with CTS2 for low level flow control.

TX2+

15 3 TXD2

TX2-

TX2+ – If in RS485 or RS422 mode, this pin is Transmit Data 2 +.

Transmit Data 2 – Serial port 2 transmit data out

TX2- – If in RS485 or RS422 mode, this pin is Transmit Data 2 -.

LittleBoard 735 Reference Manual 27

Chapter 3 Hardware

Table 3-5. Serial A Interface Pin Signals (J11) (Continued)

16 8 CTS2*

Clear To Send 2 – Indicates external serial communications device is ready to receive data. Used as hardware handshake with RTS2 for low level flow control.

RX2+

RX2+ – If in RS485 or RS422 mode, this pin is Receive Data 2 -.

17 4 DTR2* Data Terminal Ready 2 – Indicates Serial port 1 is powered, initialized,

and ready. Used as hardware handshake with DSR2 for overall readiness to communicate.

18 9 RI2* Ring Indicator 2 – Indicates external serial communications device is

detecting a ring condition. Used by software to initiate operations to answer and open the communications channel.

19 5

GND Ground

20 NC NC Not connected

Note: The shaded table cells denote ground. Signals are listed in the table with RS232 first, followed by

RS422/RS485. The * symbol indicates the signal is Active Low.

Table 3-6. Serial B Interface Pin Signals (J12)

Pin # Pin #

Signal Description

DB9

(COM3)

DCD3* Data Carrier Detect 3 – Indicates external serial communications

device is detecting a carrier signal (i.e., a communication channel is currently open). In direct connect environments, this input will be driven by DTR3 as part of the DTR/DSR handshake.

2 6 DSR3* Data Set Ready 3 – Indicates external serial communications device is

powered, initialized, and ready. Used as hardware handshake with DTR3 for overall readiness to communicate.

32RXD3

Receive Data 3 – Serial port 3 receive data in

RX3-

47RTS3*

RX3- – If in RS485 or RS422 mode, this pin is Receive Data 3 -.

Request To Send 3 – Indicates Serial port 3 is ready to transmit data. Used as hardware handshake with CTS3 for low level flow control.

TX3+

5 3 TXD3

TX3-

68CTS3*

TX3+ – If in RS485 or RS422 mode, this pin is Transmit Data 3 +.

Transmit Data 3 – Serial port 3 transmit data out

TX3- – If in RS485 or RS422 mode, this pin is Transmit Data 3 -.

Clear To Send 3 – Indicates external serial communications device is ready to receive data. Used as hardware handshake with RTS3 for low level flow control.

RX3+

RX3+ – If in RS485 or RS422 mode, this pin is Receive Data 3 -.

7 4 DTR3* Data Terminal Ready 3 – Indicates this Serial port is powered,

initialized, and ready. Used as hardware handshake with DSR3 for overall readiness to communicate.

8 9 RI3* Ring Indicator 3 – Indicates external serial communications device is

detecting a ring condition. Used by software to initiate operations to answer and open the communications channel.

GND Ground

10 NC KEY Not Connected

28 Reference Manual LittleBoard 735

Chapter 3 Hardware

Table 3-6. Serial B Interface Pin Signals (J12) (Continued)

11 1

(COM4)

DCD4* Data Carrier Detect 4 – Indicates external serial communications

device is detecting a carrier signal (i.e., a communication channel is currently open). In direct connect environments, this input will be driven by DTR4 as part of the DTR/DSR handshake.

12 6 DSR4* Data Set Ready 4 – Indicates external serial communications device is

powered, initialized, and ready. Used as hardware handshake with DTR4 for overall readiness to communicate.

13 2 RXD4

Receive Data 4 – Serial port 4 receive data in

RX4-

14 7 RTS4*

RX4- – If in RS485 or RS422 mode, this pin is Receive Data 4 -.

Request To Send 4 – Indicator to serial output port 4 is ready to transmit data. Used as hardware handshake with CTS4 for low level

TX4+

flow control.

TX4+ – If in RS485 or RS422 mode, this pin is Transmit Data 4 +.

15 3 TXD4

TX4-

16 8 CTS4*

Transmit Data 4 – Serial port 4 transmit data out

TX4- – If in RS485 or RS422 mode, this pin is Transmit Data 4 -.

Clear To Send 4 – Indicator to serial port 4 that external serial communications device is ready to receive data. Used as hardware handshake with RTS4 for low level flow control.

RX4+

RX4+ – If in RS485 or RS422 mode, this pin is Receive Data 4 +.

17 4 DTR4* Data Terminal Ready 4 – Indicates this Serial port is powered,

initialized, and ready. Used as hardware handshake with DSR4 for overall readiness to communicate.

18 9 RI4* Ring Indicator 4 – Indicates external serial communications device is

detecting a ring condition. Used by software to initiate operations to answer and open the communications channel.

19 5

GND Ground

20 NC NC Not connected

Note: The shaded table cells denote ground. Signals are listed in the table with RS232 first, followed by

RS485/RS422. The * symbol indicates the signal is Active Low.

Utility Interfaces

The Utility interfaces consist of two headers that provide the standard interface signals for the following devices:

• Utility 1 (J15)

♦

PS/2 Keyboard

♦

External battery

♦

Reset Switch

♦

Power-On LED

♦

Speaker

• Utility 2 (J13)

♦

PS/2 Mouse

♦

SMBus

♦

Power button

LittleBoard 735 Reference Manual 29

Chapter 3 Hardware

Utility 1 Interface

The Utility 1 (J15) interface routes various signals to devices such as keyboard, speaker, battery, power-on LED, and reset switch. Table 3-7 defines the pin signals for the J15, Utility 1 header, which consists of 16 pins, 2 rows, odd/even (1, 2) sequence with 0.100" (2.54mm) pitch and provides the following functions.

Keyboard

The signal lines for a PS/2 keyboard are provided through the Utility 1 interface, which is also fully PC/AT compatible.

External Battery

An external battery input connection is provided through the Utility 1 interface as well as the J35 header to support the Real Time Clock in the event the on-board battery is not used.

Power-On LED

The power-on LED signal provides +3.3 volts power for an external LED that indicates the system is powered on.

Reset Switch

The signal lines for a reset switch are provided through the Utility 1 interface as well as through the J46 Power Button header.

NOTE To perform the equivalent of a power-on reset, the reset button must be pressed

and held for a minimum of four seconds.

Speaker

The signal lines for a speaker port with 0.1-watt drive are provided through the Utility 1 interface.

Table 3-7. Utility 1 Interface Pin Signals (J15)

Pin # Signal I/O Description

NC - Not connected (-12V Power)

GND - Ground

NC - Not connected (-5V Power)

GND - Ground

5 LED O Power-On LED – This on-board +3.3 volts is provided through 330 ohm

resistor to an external Power-On LED.

6 NC - Not connected (Power Good)

7 SPKR+ O + Speaker Output – This signal drives external PC "Beep" speaker.

GND - Ground

9 RSTSW* I/O Reset Switch – This signal is provided for an external reset switch.

10 NC - Not connected (Keyboard Switch)

11 KBDATA I/O Keyboard Data – Data signal provided to external keyboard connector.

12 KBCLK I/O Keyboard Clock – Clock signal provided to external keyboard connector.

GND - Keyboard Ground

KBDPWR - Keyboard Power – This +5 volts is provided to external keyboard

connector. Requires external fuse for keyboard/mouse protection.

30 Reference Manual LittleBoard 735

Chapter 3 Hardware

Table 3-7. Utility 1 Interface Pin Signals (J15) (Continued)

BATV+ - Backup Battery – This connection provides an additional backup battery

from an external source. It can also be used in place of the on-board backup battery, B1, shipped with all LittleBoard 735s. Each RTS battery input is protected with a zener diode.

BATV- - Battery - Return (Grounded)

Note: The shaded table cells denote power or ground. The * symbol indicates the signal is Active Low.

Utility 2 Interface

The Utility 2 (J13) interface routes various signals to devices such as a mouse or power button. Ta b le 3 -9 defines the pin signals of the J13, Utility 2 interface header, which consists of 24 pins, 2 rows, odd/even (1,

2) pin sequence with 0.100" (2.54mm) pitch and provides the following functions.

System Management Bus (SMBus)

The ICH7-M, I/O Hub, 82801GBM (Southbridge), contains both a host and slave SMBus port, but the host cannot access the slave internally. The slave port allows an external master access to the I/O Hub through the Utility 2 header (J13) as well as the J45 SMBus header. The master contained in the 82801GBM is used to communicate with the DDR2 SODIMM and the clock generator. Table 3-8 lists the corresponding binary addresses of these devices on the SMBus.

Table 3-8. SMBus Reserved Addresses

Component Address Binary

DDR2 SODIMM 1010,000x

Clock Generator (9LPRS501) 1101,001x

I/O Hub (82801GBM) 0000,000xb (default) Programmable Master

Mouse

The signal lines for a PS/2 mouse are provided through the Utility 2 interface (J13).

Power Button

A power button can be connected to the board through the Utility 2 interface as well as through the J46 Power Button header. Press and hold the green button on the power button cable for at least four seconds to power off the system. To power on the system, press and release the green button and wait for the system to boot.

Table 3-9. Utility 2 Interface Pin Signals (J13)

Pin # Signal I/O Description

1 NC - Not connected (Lid Switch)

2 PWRBT* I Power Button – This signal allows the user to turn off and on the power

supply from an external switch.

3 BATLOW* I Battery Low – This signal from an external battery indicates to the I/O

Hub there is insufficient power to boot the system.

4 NC - Not connected (IR Mode select)

5 NC - Not connected (IR Transmit Data)

6 NC - Not connected (IR Receive Data)

GND - Ground

VCC - +5 Volts

9 MDATA I/O Mouse Data – Data signal provided to external mouse connector.

LittleBoard 735 Reference Manual 31

Chapter 3 Hardware

Table 3-9. Utility 2 Interface Pin Signals (J13) (Continued)

10 MCLK I/O Mouse Clock– Clock signal provided to external mouse connector

13 SMBCLK I/O SMBus Clock – Clock signal provided to external devices.

14 SMBDATA I/O SMBus Data – Data signal provided to external devices.

17 NC - Not connected (USB 0 Negative Data Signal)

18 NC - Not connected (USB 1 Negative Data Signal)

19 NC - Not connected (USB 0 Positive Data Signal)

20 NC - Not connected (USB 1 Positive Data Signal)

23 NC - Not connected [USB Port shield (Cable Shield)]

24 NC - Not connected [USB Port shield (Cable Shield)]

Note: The shaded table cells denote power or ground. The * symbol indicates the signal is Active Low.

GND - Ground

VCC - +5 Volts

NC - Not connected (+5V USB Port Power)

NC - Not connected (USB Port ground)

USB Interfaces

The I/O Hub (82801GBM) provides the USB solution for both legacy UHCI controller (USB 1.1) and EHCI controller (USB 2.0) support. The I/O Hub (Southbridge) contains port-routing logic that determines which controller (UHCI or EHCI) handles the USB data signals. The J44 header provides two of the six USB ports: USB0 and USB1. The J14 header provides USB2 and USB3, and the J39 header provides USB4 and USB5.

USB 2.0 Support

The I/O Hub (Southbridge) contains an Enhanced Host Controller Interface (EHCI) compliant host controller, which supports up to six high-speed USB 2.0 Specification compliant root ports. The higher speed USB 2.0 specification allows data transfers up to 480 Mbps using the same pins as the six full-speed/ low-speed USB UHCI ports. The I/O Hub (Southbridge) port-routing logic determines which of the controllers (UHCI or the EHCI) processes the USB signals.The USB 2.0 features implemented in the USB ports include the following:

• One EHCI host controller for all six USB ports

• Supports USB V2.0 Specification

Legacy USB Support

The I/O Hub (Southbridge) supports three USB Universal Host Controller Interfaces (UHCI) and each Host Controller includes a root hub with two separate USB ports each, for a total of six USB ports. The USB Legacy features implemented in the USB ports include the following:

• Three root hubs for six USB ports

• Support for USB v1.1 and UHCI v1.1 with integrated physical layer transceivers

• Improved arbitration latency for UHCI controllers

• UHCI controllers support Analog Front End (AFE) embedded cell instead of USB I/O buffers to allow

for USB high-speed signaling rates

• Three shared over-current fuses, located on the board, are used on all six USB ports

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Chapter 3 Hardware

CAUTION ADLINK does not recommend connecting a USB boot device to the

LittleBoard 735 through an external hub. Instead, connect the USB boot device directly to the LittleBoard 735.

USB0 and USB1

Table 3-10 lists the USB0 and USB1 pin signals which use 10 pins, 2 rows, odd/even sequence (1, 2) with

0.079" (2mm) pitch.

Table 3-10. USB 0 & 1 Interface Pin Signals (J44)

Pin # Signal Description

3 USB0- USB 0 Data Negative

4 USB1- USB 1 Data Negative

5 USB0+ USB 0 Data Positive

6 USB1+ USB 1 Data Positive

USBPWR0 +5 volts power, USB 0

USBPWR1 +5 volts power, USB 1

USB GND0 USB 0 Ground

USB GND1 USB 1 Ground

USB GND0 USB 0 Ground

USB GND1 USB 1 Ground

Note: The shaded table cells denote power or ground.

USB2 and USB3

Table 3-11 lists the USB2 and USB3 pin signals which use 10 pins, 2 rows, odd/even sequence (1, 2) with

0.079" (2mm) pitch.

Table 3-11. USB 2 & 3 Interface Pin Signals (J14)

Pin # Signal Description

3 USB2- USB 2 Data Negative

4 USB3- USB 3 Data Negative

5 USB2+ USB 2 Data Positive

6 USB3+ USB 3 Data Positive

Note: The shaded table cells denote power or ground.

USBPWR2 +5 volts power, USB 2

USBPWR3 +5 volts power, USB 3

USB GND2 USB 2 Ground

USB GND3 USB 3 Ground

USB GND2 USB 2 Ground

USB GND3 USB 3 Ground

LittleBoard 735 Reference Manual 33

Chapter 3 Hardware

USB4 and USB5

Table 3-12 lists the USB4 and USB5 pin signals which use 10 pins, 2 rows, odd/even sequence (1, 2) with

0.079" (2mm) pitch.

Table 3-12. USB 4 & 5 Interface Pin Signals (J39)

Pin # Signal Description

3 USB4- USB 4 Data Negative

4 USB5- USB 5 Data Negative

5 USB4+ USB 4 Data Positive

6 USB5+ USB 5 Data Negative

Note: The shaded table cells denote power or ground.

USBPWR4 +5 volts power, USB 4

USBPWR5 +5 volts power, USB 5

USB GND4 USB 4 Ground

USB GND5 USB 5 Ground

USB GND4 USB 4 Ground

USB GND5 USB 5 Ground

Audio Interface

The audio solution on the LittleBoard 735 is provided by the Realtek ALC203-LF audio CODEC. The chip is defined by AC97 and is revision 2.2 compliant. The audio interface signals are supplied to the 26-pin 2mm connector (J9). Refer to the following list for the Audio CODEC (ALC203-LF) features.

• Analog Mixer Dynamic Range 97dB (typ)

• D/A Dynamic Range 89dB (typ) and A/D Dynamic Range 90dB (typ)

• AC’97 Rev 2.1 compliant

• High quality Sample Rate Conversion (SRC) from 4kHz to 48kHz

• 3D Sound circuitry and PC-Beep passthrough to Line Out while reset is held active low

• True Line Level Output with volume control independent of Line Out

Table 3-13 describes the pin signals of the audio interface which uses 26 pins, 2 rows, odd/even sequence (1,

2) with 0.079" (2mm) pitch.

Table 3-13. Audio Interface Pin Signals (J9)

Pin # Signal Description

1 AUX_L Auxiliary Audio I/O signal left channel

3 VIDEO_R Video Audio I/O signal right channel

4 CD_L CD-ROM signal left channel

6 CD_R CD-ROM signal right channel

7 LINE_IN_L Line In signal left channel

9 LINE_IN_R Line In signal right channel

10 MIC1 Microphone In signal 1 or left channel

AUX_GND Auxiliary Audio ground

CD_GND CD-ROM Audio ground

LINE_IN_GND Line In Audio ground

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Chapter 3 Hardware

Table 3-13. Audio Interface Pin Signals (J9) (Continued)

12 MIC2 Microphone In signal 2 or right channel

13 MIC_REF Microphone reference signal

14 NC/KEY Not Connected - Key

15 PHONE_IN Phone signal In

17 MONO_OUT Monaural signal Out

19 +AOUT_L + Audio Out signal Left channel

21 +AOUT_R + Audio Out signal Right channel

24 HP_L Headphone signal Left channel

25 HP_R Headphone signal Right channel

26 NC Not Connected (Headphone In)

MIC_GND Microphone Audio ground

PHONE_GND Phone Audio ground

MONO_GND Monaural Audio ground

-AOUT_L - Audio Out Left ground

-AOUT_R - Audio Out Right ground

GND Audio Ground (tied to all audio grounds)

Note: The shaded table cells denote power or ground.

Video Interfaces

The 82945GSE chip provides the graphics control and video signals for traditional glass CRT monitors and LCD flat panel displays. The chip features are listed below:

VGA features:

• Support for an integrated 400-MHz, 24-bit RAMDAC to drive a progressive scan analog monitor and

outputs to three, 8-bit DACs that provide the R, G, and B signals to the monitor

• Support for resolutions up to QXGA (2048x1536)

• Support for a maximum allowable video frame buffer size of 224MB UMA (Unified Memory

Architecture)

LVDS Flat Panel features:

• Support for an integrated dual channel LFP Transmitter interface

• Support for LVDS LCD panel resolutions up to UXGA(1600X1200)

• Support for a maximum pixel format of 18 bpp with SSC supported frequency range from 25 MHz to

112 MHz (single channel/dual channel)

TV Out features:

• Support for three integrated 10-bit DACS

• Support for overscaling

• Provide NTSC/PAL

• Provide component, s-video, and composite output interfaces

• Support HDTV: 480p/720p/1080i/1080p

LittleBoard 735 Reference Manual 35

Chapter 3 Hardware

VGA Interface

Table 3-14 describes the pin signals of the VGA interface, which uses 12 pins, 2 rows, odd/even sequence

(1, 2) with 0.079" (2mm) pitch.

Table 3-14. VGA Interface Pin Signals (J3)

Pin # Signal Description

1 RED Red – This is the Red analog output signal to the CRT.

3 GREEN Green – This is the Green analog output signal to the CRT.

5 BLUE Blue – This is the Blue analog output signal to the CRT.

7 HSYNC Horizontal Sync – This signal is used for the digital horizontal sync output

9 VSYNC Vertical Sync – This signal is used for the digital vertical sync output to

11 SDA DDC (Display Data Channel) Data

12 SCL DDC (Display Data Channel) Clock

GND Ground (Red Return)

GND Ground (Green Return)

GND Ground (Blue Return)

to the CRT.

GND Ground

the CRT.

PWR Power – Provided through fuse (F1) to +5 volts +/- 5%. F1 is next to J3

connector on board.

Note: The shaded table cells denote power or ground.

LVDS Interface

Table 3-15 describes the pin signals of the LVDS interface, which provides a 30-pin header with 2 rows,

odd/even sequence (1, 2), and 0.079" (2mm) pitch.

Table 3-15. LVDS Interface Pin Signals (J26)

Pin # Signal Description Line Channel

2 +VCC (+3.3V/+5V) JP1 determines voltage on pin

5 LBCLK_P Clock Positive Output Clock

6 LBCLK_N Clock Negative Output

7 Not Supported N/A N/S

8 Not Supported N/A

9 LBDATA2_P Data Positive Output 2

10 LBDATA2_N Data Negative Output

11 LBDATA1_P Data Positive Output 1

12 LBDATA1_N Data Negative Output

13 LBDATA0_P Data Positive Output 0

14 LBDATA0_N Data Negative Output

15 LVDS_BKLT_CTL Control Panel Backlight NA NA

+12V +12 volt input

GND Ground

NA NA

Channel 2

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Chapter 3 Hardware

Table 3-15. LVDS Interface Pin Signals (J26) (Continued)

16 LVDD_EN Enable Panel Power NA NA

17 LACLK_P Clock Positive Output Clock

18 LACLK_N Clock Negative Output

19 Not Supported N/A N/S

20 Not Supported N/A

Channel 1

21 LADATA2_P Data Positive Output 2

22 LADATA2_N Data Negative Output

23 LADATA1_P Data Positive Output 1

24 LADATA1_N Data Negative Output

25 LADATA0_P Data Positive Output 0

26 LADATA0_N Data Negative Output

27 L_DDC_CLK Display Data Channel Clock NA NA

28 L_DDC_DAT Display Data Channel Data NA NA

29 LVDS_BKLT_EN Enable Backlight Inverter NA NA

30 NC Not Connected NA NA

Note: The shaded table cells denote power or ground.

NOTE Pins 5-14 constitute 2

channel interface of two channels, or a single channel interface.

channel interface of two channels. Pins 15-26 constitute

TV-Out Interface

Table 3-16 describes the pin signals of the TV-Out interface, which provides a 6-pin header with 2 rows,

odd/even sequence (1, 2), and 0.100" (2.54mm) pitch.

Table 3-16. TV-Out Pin Signals (J36)

Pin # Signal Description

1 TVDAC A

TV_GND

3 TVDAC B

TV_GND

5 TVDAC C

TVDAC Channel A Output:

TVDAC_A supports the following:

Composite: CVBS signal

Component: Chrominance (Pb) analog signal

Ground

TVDAC Channel B Output:

TVDAC_B supports the following:

S-Video: Luminance analog signal

Component: Luminance (Y) analog signal

Ground

TVDAC Channel C Output:

TVDAC_C supports the following:

S-Video: Chrominance analog signal

Component: Chrominance (Pr) analog signal

TV_GND Ground

Note: The shaded table cells denote ground.

LittleBoard 735 Reference Manual 37

Chapter 3 Hardware

Power Interfaces

Power-In Interface

The LittleBoard 735 derives all of its onboard voltages from an external DC power supply through the J10 Power-In header and requires only +5 volts for operation.

Table 3-17 lists the pin signals for the J19 power-in interface, which provides a 7-pin, single-row header

with 0.156" (3.96mm) pitch.

Table 3-17. Power-In Interface Pin Signals (J19)

Pin # Signal Description

Note: The shaded table cells denote power or ground.

+5V +5.0 Volts – This +5.0 volts DC +/- 5% is the only voltage required for operation.

GND Ground

+12V +12 Volts – This +12 volts is for the PC/104, PC/104-Plus, and LVDS power only.

+3.3V +3.3 Volts – This +3.3 volts is for PC/104-Plus Bus power only (optional).

GND Ground

+5V +5.0 Volts – This +5.0 volts DC +/- 5% is the only voltage required for operation.

ATX Power-On Interface

This 3-pin header (J30) provides ATX control of the power supply.

Table 3 -18 lists the pin signals for the ATX Power-On interface, which provides a 3-pin, single-row header with 0.100" (2.54mm) pitch.

Table 3-18. ATX Power-On Interface Pin Signals (J30)

Pin # Signal Description

1 PS_ON* Power Supply On – This signal provides the LittleBoard 735 ATX

control of the power supply.

Note: The shaded table cells denote power or ground. The * symbol indicates the signal is Active Low.

GND Ground

VCC5_ATX_STBY +5V Standby (+5V, 500mA) – This voltage is supplied from the ATX

power supply and is required for ATX operation.

Power Button and Reset Switch Interface

A power button signal is provided by connecting ground to pin-1 on this header (J46). A hardware reset switch signal is provided by connecting ground to pin 3 on this header. Press and hold the green button on the power button cable for at least four seconds to power off the system. To power on the system, press and release the green button and wait for the system to boot. To perform a hardware reset, press and release the red button on the power button cable.

Table 3-19 lists the pin signals for the J46 Power Button and Reset Switch interface, which provides a 5-pin,

single-row header with 0.100" (2.54mm) pitch.

Table 3-19. Power Button Interface Pin Signals (J46)

Pin # Signal Description

1 PWRBTN* Power Button input (connect between pins 1 & 2)

38 Reference Manual LittleBoard 735

GND Ground

Chapter 3 Hardware

Table 3-19. Power Button Interface Pin Signals (J46) (Continued)

3 RST_SW* Reset Switch input or output (connect between pins 3 & 2)

4 NC Not Connected

5 NC Not Connected

Note: The shaded table cell denotes power or ground. The * symbol indicates the signal is Active Low.

Miscellaneous

Real Time Clock (RTC)

The ICH7-M Southbridge contains a Real Time Clock (RTC) with 256 bytes of battery-backed memory. If the battery is not present, the BIOS provides a battery-free boot option to complete the boot process. Under these conditions all setup information is restored from flash memory during POST along with the default date and time information.

NOTE Some operating systems require a valid default date and time to function.

Temperature Monitoring

The Intel Atom processor supports the THERMTRIP# signal for catastrophic thermal protection. The THERMTRIP# is an open drain signal from the processor which is used to shut down the processor core voltage. This signal is connected to the THERMTRIP# input signal and indicates that a thermal trip from the processor occurred and the ICH7-M will immediately transition to the S5 state.

NOTE The LittleBoard 735 requires a heatsink for the Atom N270 processor.

User GPIO Signals

The LittleBoard 735 provides GPIO pins for custom use. The signals are routed to the J40 header, and the Enable and Initialize values are set in the BIOS. An example of how to use the GPIO pins resides in the

Miscellaneous Source Code Examples on the LittleBoard 735 Support Software QuickDrive

The example program can be built by using the make.bat file. This produces a 16-bit DOS executable application, gpio.exe, which can be run on the LittleBoard 735 to demonstrate the use of GPIO pins. For more information about the GPIO pin operation, refer to the Programming Manuals for the Southbridge (82801GBM) and Super I/O (SCH3114I-NU) controllers at:

http://www.intel.com/assets/pdf/datasheet/307013.pdf

http://www.smsc.com/main/catalog/sch311x.html

Table 3-20 lists the pin signals for the J40 GPIO interface, which provides a 10-pin header with two rows,

odd/even sequence, and 0.079" (2mm) pitch.

Table 3-20. User GPIO Pin Signals (J40)

Pin # Signal Description

3 GPI0 User defined

4 GPO0 User defined

5 GPI1 User defined

6 GPO1 User defined

7 GPI2 User defined

VCC +3.3 Volts DC +/ 5%

GND Ground

LittleBoard 735 Reference Manual 39

Chapter 3 Hardware

Table 3-20. User GPIO Pin Signals (J40) (Continued)

8 GPO2 User defined

9 GPI3 User defined

10 GPO3 User defined

Note: The shaded table cells denote power or ground.

SMBus Interface

Compatible with most I2C devices, this interface allows the processor to communicate with SMBus slave peripherals through the Host SMBus controller on the ICH7-M.

Table 3-21 lists the pin signals for the SMBus interface (J45), which provides a 5-pin, single-row header

with 0.49" pitch.

Table 3-21. SMBus Pin Signals (J45)

Pin # Signal Description

1 SCL SMBus Clock Reset

3 SDA SMBus Data Reset

5 ALERT SMBus Alert

GND Ground

VCC +3.3 Volts DC +/ 5%

Note: The shaded table cells denote power or ground.

Oops! Jumper (BIOS Recovery)

The Oops! jumper is provided in the event the BIOS settings you have selected prevent you from booting the system. By using the Oops! jumper you can prevent the current BIOS settings in the EEPROM from being loaded, forcing the use of the default settings. Connect the DTR pin to the RI pin on serial port 1 (COM 1) prior to boot up to prevent the present BIOS settings from loading. After booting with the Oops! jumper in place, remove the Oops! jumper and go into BIOS Setup. Change the desired BIOS settings, or select the default settings, and save changes before rebooting the system.

To convert the Serial A interface to an Oops! jumper, short together the DTR (7) and RI (8) pins on the Serial A (J11) header for Serial Port 1. As an alternate, short the equivalent pins, 4 and 9, on the Serial Port 1 DB9 connector as shown in Figure 3-2.

Serial A Interface (J11) for Serial Port 1 (or COM1 Port)

Top View

Figure 3-2. Oops! Jumper Connection

Standard DB9 Serial

Port Connector (Male)

678910

234

Front View

Remote Access

The LittleBoard 735 supports the remote access (or console redirection) feature. This I/O function is provided by an ANSI-compatible serial terminal, or the equivalent terminal emulation software running on another system. This can be very useful when setting up the BIOS on a production line for systems that are not connected to a keyboard and display.

LB735Oopsjumper_b

40 Reference Manual LittleBoard 735

Chapter 3 Hardware

Remote Access Setup

The remote access feature is implemented by connecting a standard null modem cable or modified serial cable (or “Hot Cable”) between one of the serial ports, such as Serial 1 (J11A) and the serial terminal, or a PC with communications software. The BIOS Setup Utility controls the remote access settings on the LittleBoard 735. Refer to Chapter 4, BIOS Setup for the settings of the remote access option, the serial terminal, or PC with communications software and the connection procedure.

Hot (Serial) Cable

To convert a standard serial cable to a Hot Cable, specific pins must be shorted together at the Serial port connector or at the DB9 cable connector. For example, short the RTS (7) and RI (9) at the rear of the respective DB9 cable connector as shown in Figure 3-3.

tandard DB9 Cable

Connector (Female)

Rear View

Figure 3-3. Hot Cable Jumper

LB735Hotcable

Watchdog Timer

The Watchdog Timer (WDT) restarts the system if a mishap occurs, ensuring proper start-up after the interruption. Possible problems include failure to boot properly, the application software’s loss of control, failure of an interface device, unexpected conditions on the bus, or other hardware or software malfunctions.

The WDT (Watchdog Timer) can be used both during the boot process and during normal system operation.

• During the Boot process – If the operating system fails to boot in the time interval set in the BIOS, the

system will reset.

Enable the WDT in Boot Settings Configuration of BIOS Setup. Set the WDT for a time-out interval in seconds, between 1 and 255, in one-second increments in the Boot Setting Configuration screen. Ensure you allow enough time for the boot process to complete and for the OS to boot. The OS or application must tickle the WDT as soon as it comes up. This can be done by accessing the hardware directly or through a BIOS call.

• During System Operation – An application can set up the WDT hardware through a BIOS call, or by

accessing the hardware directly. Some ADLINK Board Support Packages provide an API interface to the WDT. The application must tickle the WDT in the time set when the WDT is initialized or the system will be reset. You can use a BIOS call to tickle the WDT or access the hardware directly.

The BIOS implements interrupt 15 function 0C3h to manipulate the WDT.

• Watchdog Code examples – ADLINK has provided source code examples on the LittleBoard 735

Support Software QuickDrive illustrating how to control the WDT. The code examples can be easily copied to your development environment to compile and test the examples, or make any desired changes before compiling. Refer to the WDT Readme file on the LittleBoard 735 Support Software QuickDrive.

LittleBoard 735 Reference Manual 41

Chapter 3 Hardware

Optional CPU Fan

Table 3-22 lists the pin signals of the optional CPU Fan interface, which provides a 3-pin, single-row header

with 0.100" (2.54mm) pitch.

CAUTION The voltage to the fan should not exceed 130mA on the LB-735-R-18

model and 250mA on the LB-735-P-18 and LB-735-F-18 models or significant damage to the board may occur. See the LittleBoard 735 Hardware Release Notes for more details.

Table 3-22. Optional CPU Fan (J34)

Pin # Signal Description

1 Fan_Tach Fan Tachometer – This signal monitors the fan speed

Note: The shaded table cells denote power or ground.

VCC +5.0 volts DC +/- 5%

GND Ground and Modulation – This signal controls the fan speed

GLAN1 LED

Table 3-23 lists the pin signals of the J47, external GLAN1 LED interface, which provides a

5-pin, single-row header with 0.049" (1.24mm) pitch.

Table 3-23. Ethernet External LED Pin Signal Descriptions (J47)

Pin # Signal Description

2 ACT_LED1* Ethernet Activity

3 SPEED_LED1* Ethernet Speed

4 LINK1000_LED1* Ethernet Connection

Note: The shaded table cells denote power or ground. The * symbol indicates the signal is Active Low.

+V3.3_S5 +3.3 Volts Ethernet Power

GND Ethernet Ground

GLAN2 LED

Table 3-23 lists the pin signals of the J48, external GLAN2 LED interface, which provides a

5-pin, single-row header with 0.049" (1.24mm) pitch. .

Table 3-24. Ethernet External LED Pin Signal Descriptions (J48)

Pin # Signal Description

2 ACT_LED2* Ethernet Activity

3 SPEED_LED2* Ethernet Speed

4 LINK1000_LED2* Ethernet Connection

Note: The shaded table cells denote power or ground. The * symbol indicates the signal is Active Low.

+V3.3_S5 +3.3 Volts Ethernet Power

GND Ethernet Ground

42 Reference Manual LittleBoard 735

Chapter 3 Hardware

Battery Input

Table 3-25 lists the pin signals of the External Battery Input interface, which provides a 2-pin, single-row

header with 0.049" (1.24mm) pitch.

Table 3-25. External Battery Input Header (J35)

Pin # Signal Description

Note: The shaded table cells denote power or ground.

VCC +5.0 volts DC +/- 5%

GND Ground

LittleBoard 735 Reference Manual 43

Chapter 3 Hardware

44 Reference Manual LittleBoard 735

Chapter 4 BIOS Setup

Introduction

This chapter assumes the user is familiar with general BIOS Setup and does not attempt to describe the BIOS functions. Refer to “BIOS Setup Menus” on page 47 in this chapter for a map of the BIOS Setup settings. If ADLINK has added to or modified any of the standard BIOS functions, these functions will be described.

Entering BIOS Setup (Local Video Display)

To enter BIOS Setup using a local video display for the LittleBoard 735:

1. Turn on the display and the power supply to the LittleBoard 735.

2. Start Setup by pressing the [Del] key when the following message appears on the AMI boot screen.

Press DEL to run Setup

NOTE If the setting for Quick Boot is [Enabled], you may not see this prompt appear on

screen. If this happens, press the [Del] key earlier in the boot sequence to enter BIOS Setup.

3. Follow the instructions on the right side of the screen to navigate through the selections and modify any settings.

Entering BIOS Setup (Remote Access)

This section describes how to enable the Remote Access in VGA mode and enter the BIOS setup through a serial terminal or PC.

1. Turn on the power supply to the LittleBoard 735 and enter the BIOS Setup Utility in VGA mode.

2. Set the BIOS feature Remote Access to [Enabled] under the Advanced menu.

3. Accept the default options or make your own selections for the balance of the Remote Access fields and record your settings.

4. Ensure you select the type of remote serial terminal you will be using and record your selection.

5. Select Save Changes and Exit and then shut down the LittleBoard 735.

6. Connect the remote serial terminal (or the PC with communications software) to the COM port you selected and recorded earlier in the BIOS Setup Utility.

7. Turn on the remote serial terminal or PC and set it to the settings you selected in the BIOS Setup Utility.

The default settings for the LittleBoard 735 are:

♦

[COM2] for Serial Port Number

♦

[115200 8, n, 1] for Serial Port Mode

♦

[None] for Flow Control

♦

[Always] for Redirection After BIOS POST

♦

[ANSI] for Terminal Type

♦

[Enabled] for VT-UTF8 Combo Key Support

♦

[No Delay] for Srdir Mem Display Delay

8. Restore power to the LittleBoard 735 and look for the screen prompt.

9. Press the Del key to enter Setup (early in the boot sequence if Quick Boot is set to [Enabled].)

LittleBoard 735 Reference Manual 45

Chapter 4 BIOS Setup

If Quick Boot is set to [Enabled], you may never see the screen prompt.

10. Use the <Enter> key to select the screen menus listed in the Opening BIOS screen.

NOTE The serial console port is not hardware protected. Diagnostic software that

probes hardware addresses may cause a loss or failure of the serial console functions.

PCI-to-ISA Bridge Mapping

The LittleBoard 735 supports ISA bus based modules with an on-board PCI-to-ISA bridge. The PCI-to-ISA bridge optionally maps the following resources to ISA based modules:

• IRQs

• DMA Channels

The LittleBoard 735 system BIOS, maps the above resources based on information provided in the BIOS Setup screens. By default, IRQs or DMA channels to be mapped to ISA modules must be explicitly specified by the user in the BIOS Setup screens.

The IRQs and DMA channels are mapped with the “PCIPnP/IRQx” fields in BIOS setup (where x specifies the IRQ number.) The IRQs 3, 4, 5, 7, 9, 10, 11, 14, and 15 can be mapped to ISA based modules by changing the default setting for these IRQs from “Available” to “Reserved”.

Any of the DMA channels 0, 1, 3, 5, 6, 7 can be mapped to ISA modules by changing the default setting of “Available” to “Reserved”.

Logo Screen Utility (Splash Screen)

The LittleBoard 735 BIOS supports a graphical logo utility, which can be customized by the user and displayed when enabled through the BIOS Setup Utility. The graphical image can be a company logo or any custom image the user wants to display during the boot process. The custom image can be displayed as the first image displayed on screen during the boot process and remain there, depending on the options selected in BIOS Setup, while the OS boots.

Logo Screen Image Requirements

The user’s image may be customized with any standard image editing tool.

The LittleBoard 735 logo screen utility supports the following image formats:

• Bitmap image

• Exactly 640 x 480 pixels

• Exactly 16 colors

• Bitmap image

♦

16-Color, 640x480 pixels

♦

256-Color, 640x480 pixels

• JPG image

♦

16-Color, 640x480 pixels

• PCX image

♦

256-Color, 640x480 pixels

• A file size no larger than the sample image

46 Reference Manual LittleBoard 735

Chapter 4 BIOS Setup

BIOS Setup Menus

This section provides illustrations of the seven main setup screens in the LittleBoard 735 BIOS Setup Utility. Below each illustration is a bullet list of the screen’s submenus and setting selections. The setting selections are presented in brackets after each submenu or menu item and the optimal default settings are presented in bold. For more detailed definitions of the BIOS settings, refer to the AMIBIOS8 manual: http://www.ami.com/support/doc/MAN-EZP-80.pdf

Table 4-1. BIOS Setup Menus

BIOS Setup Utility Menu Item/Topic

Main Settings Date and Time

Advanced Settings CPU settings, IDE Drive Configurations, Floppy, Super I/O,

Hardware Health, ACPI, APM, MPS, PCI Express, Smbios, Remote Access (Serial Console), USB Configuration, and PCI to ISA Bridge

PCIPnP (PCI, Plug n' Play) PCI settings, Plug & Play settings, Interrupt settings, DMA channel

settings, and Reserved memory size

Boot Boot-up Settings

Security Setting or changing Passwords

Chipset Northbridge and Southbridge settings

Exit Exiting with or without changing settings, Loading Optimal or Failsafe

conditions

BIOS Main Setup Screen

BIOS Setup Utility

Main Advanced PCIPnP Boot Security Chipset Exit

System Overview

AMIBIOS

Version : 08.XX.XX Build Date: XX/XX/XX ID : LB735XXX.X

Processor

Genuine Intel (R) CPU N270 @ 1.60GHz

Speed : 1600MHz Count : X

System Memory

Size : XXXXXMB

System Time [XX:XX:XX] System Date [Xxx XX/XX/20XX]

Use [ENTER], [TAB] or [SHIFT-TAB] to select a field.

Use [+] or [-] to configure system Time.

Select Screen

Select Item

+ - Change Tab Select Field F1 General Help F10 Save and Exit ESC Exit

Field

LB735_BIOS_MainScreen_a

Figure 4-1. BIOS Main Setup Screen

• Date & Time

♦

System Time (hh:mm:ss) – This is a 24-hour clock setting in hours, minutes, and seconds.

LittleBoard 735 Reference Manual 47

Chapter 4 BIOS Setup

♦

System Date (day of week, mm:dd:yyyy) – This field requires the alpha-numeric entry of the day of week, day of the month, calendar month, and all 4 digits of the year, indicating the century plus year (Fri 10/21/2011).

BIOS Advanced Setup Screen

BIOS Setup Utility

Main Advanced PCIPnP Boot Security Chipset Exit

Advanced Settings

WARNING: Setting wrong values in below sections may cause system to malfunction.

CPU Configuration IDE Configuration Floppy Configuration SuperIO Configuration

Hardware Health Configuration ACPI Configuration APM Configuration MPS Configuration PCI Express Configuration Smbios Configuration Remote Access Configuration USB Configuration

PCI-ISA Bridge Configuration

Figure 4-2. BIOS Advanced Setup Screen

Configure CPU.

Select Screen

Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

LB735_BIOS_AdvancedScreen_a

• CPU Configuration

♦

Manufacture: Intel

♦

Genuine Intel® CPU N270 @ 1.60GHz

♦

Frequency: 1.60GHz

♦

FSB Speed: 532MHz

♦

Cache L1: 24KB

♦

Cache L2: 512KB

♦

Ratio Actual Value: 12

♦

Max CPUID Limit [Disabled; Enabled]

♦

Execute - Disable Bit Capability [Disabled; Enabled]

♦

Intel (R) Speed Step (tm) tech [Disabled; Enabled]

♦

Intel (R) C-State tech [Disabled; Enabled]

♦

Enhanced C-States [Disabled; Enabled]

48 Reference Manual LittleBoard 735

Chapter 4 BIOS Setup

• IDE Configuration

♦

ATA/IDE Configuration [Disabled; Compatible; Enhanced]

• Legacy IDE Channels [SATA Only; Reserved; SATA P ri , PATA S ec; PATA O n ly ]

♦

Primary IDE Master : [Not Detected]

• Type – [Not Installed; Auto; CD/DVD; ARMD]

• LBA/Large Mode – [Disabled; Auto]

• Block (Multi-Sector Transfer) – [Disabled; Auto]

• PIO Mode – [Auto; 0; 1; 2; 3; 4]

• DMA Mode – [Auto]

• S.M.A.R.T. – [Auto; Disabled; Enabled]

• 32Bit Data Transfer – [Disabled; Enabled]

♦

Primary IDE Slave : [Not Detected]

• Type – [Not Installed; Auto; CD/DVD; ARMD]

• LBA/Large Mode – [Disabled; Auto]

• Block (Multi-Sector Transfer) – [Disabled; Auto]

• PIO Mode – [Auto; 0; 1; 2; 3; 4]

• DMA Mode – [Auto]

• S.M.A.R.T. – [Auto; Disabled; Enabled]

• 32Bit Data Transfer – [Disabled; Enabled]

♦

Secondary IDE Master : [Not Detected]

• Type – [Not Installed; Auto; CD/DVD; ARMD]

• LBA/Large Mode – [Disabled; Auto]

• Block (Multi-Sector Transfer) – [Disabled; Auto]

• PIO Mode – [Auto; 0; 1; 2; 3; 4]

• DMA Mode – [Auto]

• S.M.A.R.T. – [Auto; Disabled; Enabled]

• 32Bit Data Transfer – [Disabled; Enabled]

♦

Secondary IDE Slave : [Not Detected]

• Type – [Not Installed; Auto; CD/DVD; ARMD]

• LBA/Large Mode – [Disabled; Auto]

• Block (Multi-Sector Transfer) – [Disabled; Auto]

• PIO Mode – [Auto; 0; 1; 2; 3; 4]

• DMA Mode – [Auto]

• S.M.A.R.T. – [Auto; Disabled; Enabled]

• 32Bit Data Transfer – [Disabled; Enabled]

♦

Hard Disk drive Write Protect – [Disabled; Enabled]

♦

IDE Detect Time Out (Sec) – [0; 5; 10; 15; 20; 25; 30; 35]

♦

ATA (PI) 80Pin Cable Detection – [Host & Device; Host; Device]

LittleBoard 735 Reference Manual 49

Chapter 4 BIOS Setup

• Floppy Configuration

♦

Floppy A – [Disabled; 360 KB 51/4"; 1.2 MB 51/4"; 720 KB 31/2"; 1.44 MB 31/2";

2.88 MB 31/2"]

• Super IO Configuration

♦

OnBoard Floppy Controller – [Disabled; Enabled]

♦

Serial Port1 Address – [Disabled; 3F8; 3E8; 2E8]

• Serial Port1 IRQ – [3; 4; 10; 11]

• RS-485 Control for SP1 – [Disabled; Enabled]

- (Appears only if Enabled is selected) Auto Direction Control Sel [FC off; FC on]

- (Appears only if Enabled is selected) Signal Select SP1 [nDTR ; nRTS]

- (Appears only if Enabled is selected) Polarity SP1 [Low; High]

♦

Serial Port2 Address – [Disabled; 2F8; 3E8; 2E8]

• Serial Port2 IRQ – [3; 4; 10; 11]

• Serial Port2 Mode – [Normal; IrDA; ASK IR]

- (Appears only if IrDA or ASK IR is selected) IR Duplex Mode [Full Duplex; Half Duplex]

- (Appears only if IrDA or ASK IR is selected) COMB Receiver Polarity [High; Low]

- (Appears only if IrDA or ASK IR is selected) COMB Xmitter Polarity [High; Low]

• RS-485 Control for SP2 – [Disabled; Enabled]

- (Appears only if Enabled is selected) Auto Direction Control Sel [FC off; FC on]

- (Appears only if Enabled is selected) Signal Select SP2 [nDTR ; nRTS]

- (Appears only if Enabled is selected) Polarity SP2 [Low; High]

♦

Serial Port3 Address – [Disabled; 3F8; 2F8; 3E8; 2E8; 2F0; 2E0]

• Serial Port3 IRQ – [3; 4; 10; 11]

• RS-485 Control for SP3 – [Disabled; Enabled]

- (Appears only if Enabled is selected) Auto Direction Control Sel [FC off; FC on]

- (Appears only if Enabled is selected) Signal Select SP3 [nDTR ; nRTS]

- (Appears only if Enabled is selected) Polarity SP3 [Low; High]

♦

Serial Port4 Address – [Disabled; 3F8; 2F8; 3E8; 2E8; 2F0; 2E0]

• Serial Port4 IRQ – [3; 4; 10; 11]

• RS-485 Control for SP4 – [Disabled; Enabled]

- (Appears only if Enabled is selected) Auto Direction Control Sel [FC off; FC on]

- (Appears only if Enabled is selected) Signal Select SP4 [nDTR; nRTS]

- (Appears only if Enabled is selected) Polarity SP4 [Low; High]

♦

Parallel Port Address – [Disabled; 378; 278; 3BC]

• Parallel Port Mode – [Normal; SPP (Bi-Dir); EPP + SPP; ECP; ECP + EPP]

- (Appears only if EPP+SPP is selected) EPP Version [1.9; 1.7]

- (Appears only if ECP is selected) ECP Mode DMA Channel [DMA0; DMA1; DMA3]

- (Appears only if ECP+EPP is selected) EPP Version [1.9; 1.7]

- (Appears only if ECP+EPP is selected) ECP Mode DMA Channel [DMA0; DMA1; DMA3]

• Parallel Port IRQ – [IRQ5; IRQ7]

50 Reference Manual LittleBoard 735

Chapter 4 BIOS Setup

• Hardware Health Configuration

♦

H/W Health Function [Disabled; Enabled]

♦

PWM Mode Setting [Fan Always On Full; Fan Disable Mode; Set duty cycle]

♦

PWM Ramp Rate [4.85 Hz; 9.62 Hz; 14.49 Hz; 24.39 Hz; 38.46 Hz; 55.56 Hz; 100 Hz; 200 Hz]

• (Appears only if “Set duty cycle” is selected) PWM Control Duty Cycle [200]

♦

CPU Temperature : XX°C/XX°F

♦

Board Temperature : XX°C/XX°F

♦

Fan Speed : XXX

♦

Vcc : X.XXX V

♦

VTR : X.XXX V

♦

VBAT : X.XXX V

• ACPI Configuration

♦

General ACPI Configuration

• Suspend mode [S1 (POS); S3 (STR); Auto]

• Repost Video on S3 Resume [No; Yes]

♦

Advanced ACPI Configuration

• ACPI Version Features [ACPI v1.0; ACPI v2.0; ACPI v3.0]

• ACPI OS Shutdown Mode [AT X; AT]

• Headless mode [Disabled; Enabled]

♦

Chipset ACPI Configuration

• APIC ACPI SCI IRQ [Disabled; Enabled]

• APM Configuration

♦

Power Management/APM [Disabled; Enabled]

♦

Video Power Down Mode [Disabled; Suspend]

♦

Hard Disk Power Down Mode [Disabled; Suspend]

♦

Suspend Time Out [Disabled; 1 Min; 2 Min; 4 Min; 8 Min; 10 Min; 20 Min; 30 Min; 40 Min; 50 Min; 60 Min]

♦

Throttle Slow Clock Ratio [87.5%; 75.0%; 62.5%; 50%; 37.5%; 25%; 12.5%]

♦

Keyboard & PS/2 Mouse [IGNORE; MONITOR]

♦

Power Button Mode [On/Off; Suspend]

♦

Advanced Resume Events Controls

• Resume On RTC Alarm [Disabled; Enabled]

- (Appears only if Enabled is selected) RTC Alarm Date (Days) [15]

- (Appears only if Enabled is selected) RTC Alarm Time [XX:XX:XX]

• MPS Configuration

♦

MPS Revision [1.1; 1.4]

• PCI Express Configuration

• Active State Power-Management [Disabled; Enabled]

LittleBoard 735 Reference Manual 51

Chapter 4 BIOS Setup

• SB PCIE Ports Configuration

- PCIE Mini Card [Auto; Enabled; Disabled]

- PCIE High Priority Port [Disabled; PCIE Onboard Gbit Ethernet; PCIE Mini Card; PCIE Onboard Gbit Ethernet2]

- PCIE Onboard GbE1 IOxAPIC Enab [Disabled; Enabled]

- PCIE Mini Card IOxAPIC Enable [Disabled; Enabled]

- PCIE Onboard GbE2 IOxAPIC Enab [Disabled; Enabled]

• Smbios Configuration

♦

Smbios Smi Support [Disabled; Enabled]

• Remote Access Configuration

♦

Remote Access – [Hotcable; Enabled]

♦

Serial port number – [COM1; COM2]

Base Address, IRQ [2F8h, 3]

♦

Serial Port Mode – [115200 8, n, 1; 57600 8, n, 1; 38400 8, n, 1; 19200 8, n, 1; 09600 8, n, 1]

♦

Flow Control – [None; Hardware; Software]

♦

Redirection After BIOS POST – [Disabled; Boot Loader; Always]

♦

Terminal Type – [ANSI; VT100; VT-UTF8]

Note

: If VT-UTF8 is selected, the following item disappears from the screen.

♦

VT-UTF8 Combo Key Support – [Disabled; Enabled]

♦

Sredir Memory Display Delay – [No Delay; Delay 1 sec; Delay 2 sec; Delay 4 sec]

• USB Configuration

♦

Module Version - X.XX.X-XX.X

♦

USB Devices Enabled :

X Xxxxxxxxxx

♦

Legacy USB Support – [Disabled; Enabled; Auto]

♦

USB 2.0 Controller Mode – [FullSpeed; HiSpeed]

♦

BIOS EHCI Hand-Off – [Disabled; Enabled]

♦

USB Device Wakeup From S3/S4 – [Disabled; Enabled]

♦

Hotplug USB FDD Support – [Disabled; Enabled; Auto]

♦

USB Mass Storage Device Configuration

• USB Mass Storage Reset Delay – [10 Sec; 20 Sec; 30 Sec; 40 Sec]

• Device #1 [USB Hotplug FDD]

• Emulation Type – [Auto; Floppy; Forced FDD; Hard Disk; CDROM]

• PCI-ISA Bridge Configuration

♦

ISA Port Window 0 Byte Length – [Disabled; 01; 02; 04; 08; 10; 20; 40; 80]

♦

ISA Port Window 0 High Byte – [0200]

♦

ISA Port Window 0 Low Byte – [0000]

♦

ISA Port Window 1 Byte Length – [Disabled; 01; 02; 04; 08; 10; 20; 40; 80]

♦

ISA Port Window 1 High Byte – [0200]

♦

ISA Port Window 1 Low Byte – [0040]

52 Reference Manual LittleBoard 735

Chapter 4 BIOS Setup

♦

ISA Port Window 2 Byte Length – [Disabled; 01; 02; 04; 08; 10; 20; 40; 80]

♦

ISA Port Window 2 High Byte – [0300]

♦

ISA Port Window 2 Low Byte – [0000]

♦

ISA Port Window 3 Byte Length – [Disabled; 01; 02; 04; 08; 10; 20; 40; 80]

♦

ISA Port Window 3 High Byte – [0300]

♦

ISA Port Window 3 Low Byte – [0040]

♦

ISA Port Window 4 Byte Length – [Disabled; 01; 02; 04; 08; 10; 20; 40; 80]

♦

ISA Port Window 4 High Byte – [0A00]

♦

ISA Port Window 4 Low Byte – [0079]

♦

ISA Port Window 5 Byte Length – [Disabled; 01; 02; 04; 08; 10; 20; 40; 80]

♦

ISA Port Window 5 High Byte – [0200]

♦

ISA Port Window 5 Low Byte – [0079]

♦

ISA Memory Window 0 KB Length – [Disabled; 16; 32; 64; 128; 256; 512; 1024; 2048]

♦

ISA Memory Window 0 High Byte – [000000]

♦

ISA Memory Window 0 Mid Byte – [000000]

♦

ISA Memory Window 0 Low Byte – [000000]

♦

ISA Memory Window 1 KB Length – [Disabled; 16; 32; 64; 128; 256; 512; 1024; 2048]

♦

ISA Memory Window 1 High Byte – [000000]

♦

ISA Memory Window 1 Mid Byte – [000000]

♦

ISA Memory Window 1 Low Byte – [000000]

♦

ISA Memory Window 2 KB Length – [Disabled; 16; 32; 64; 128; 256; 512; 1024; 2048]

♦

ISA Memory Window 2 High Byte – [000000]

♦

ISA Memory Window 2 Mid Byte – [000000]

♦

ISA Memory Window 2 Low Byte – [000000]

♦

ISA Memory Window 3 KB Length – [Disabled; 16; 32; 64; 128; 256; 512; 1024; 2048]

♦

ISA Memory Window 3 High Byte – [000000]

♦

ISA Memory Window 3 Mid Byte – [000000]

♦

ISA Memory Window 3 Low Byte – [000000]

LittleBoard 735 Reference Manual 53

Chapter 4 BIOS Setup

BIOS PCIPnP Setup Screen

BIOS Setup Utility

Main Advanced PCIPnP Boot Security Chipset Exit

Advance PCI/PnP Settings

WARNING: Setting wrong values in below sections may cause system to malfunction.

Clear NVRAM Plug & Play O/S PCI Latency Timer Allocate IRQ to PCI VGA Pallette Snooping PCI IDE BusMaster [Enabled] OffBoard PCI/ISA IDE Card [Auto]

IRQ3 [Available] IRQ4 [Available] IRQ5 [Available] IRQ6 [Available]

IRQ7 [ IRQ9 [Available] IRQ10 [Available] IRQ11 [Available] IRQ12 [Available] IRQ14 [Available] IRQ15 [

DMA Channel 0 [Available] DMA Channel 1 [Available]

DMA Channel 3 [Available] DMA Channel 5 [Available] DMA Channel 6 [Available] DMA Channel 7 [Available]

[No] [Yes] [64]

[Yes]

[Disabled]

Available]

Clear NVRAM during System Boot.

Select Screen

Select Item + - Change Option F1 General Help F10 Save and Exit ESC Exit

Reserved Memory Size [Disabled]

Figure 4-3. BIOS PCIPnP Setup Screen

• Clear NVRAM – [No; Yes]

• Plug & Play O/S – [No; Yes]

• PCI Latency timer – [32; 64; 96; 128; 160; 192; 224; 248]

• Allocate IRQ to PCI VGA – [Ye s; No]

• Palette Snooping – [Disabled; Enabled]

• PCI IDE BusMaster – [Disabled; Enabled]

• OffBoard PCI/ISA IDE Card – [Auto; PCI Slot1; PCI Slot2; PCI Slot3; PCI Slot4]

• IRQ3 – [Available; Reserved]

• IRQ4 – [Available; Reserved]

• IRQ5 – [Available; Reserved]

• IRQ6 – [Available; Reserved]

• IRQ7 – [Available; Reserved]

54 Reference Manual LittleBoard 735

LB735_BIOS_PCIPnPScreen_a

Chapter 4 BIOS Setup

• IRQ9 – [Available; Reserved]

• IRQ10 – [Available; Reserved]

• IRQ11 – [Available; Reserved]

• IRQ12 – [Available; Reserved]

• IRQ14 – [Available; Reserved]

• IRQ15 – [Available; Reserved]

• DMA Channel 0 – [Available; Reserved]

• DMA Channel 1 – [Available; Reserved]

• DMA Channel 3 – [Available; Reserved]

• DMA Channel 5 – [Available; Reserved]

• DMA Channel 6 – [Available; Reserved]

• DMA Channel 7 – [Available; Reserved]

• Reserved Memory Size – [Disabled; 16k; 32k; 64k]

BIOS Boot Setup Screen

BIOS Setup Utility

Main Advanced PCIPnP Boot Security Chipset Exit

Boot Settings

Boot Settings Configuration

1st Boot Device [1st FLOPPY DRIVE] 2nd Boot Device [CD/DVD] 3rd Boot Device [Hard Drive] 4th Boot Device [USB:USB Hotplug FD] 5th Boot Device [Network:IBA GE Slo]

Hard Disk Drives Removable Drives CD/DVD Drives USB Drives Network Drives

Figure 4-4. BIOS Boot Setup Screen

Configure Settings during System Boot.

Select Screen

Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

LB735_BIOS_BootScreen_a

• Boot Settings Configuration

♦

Quick Boot – [Disabled; Enabled]

♦

Quiet Boot – [Disabled; Enabled]

♦

Add On ROM Display Mode – [Force BIOS; Keep Current]

♦

Bootup Num-Lock – [Off; On]

♦

PS/2 Mouse Support – [Disabled; Enabled; Auto]

LittleBoard 735 Reference Manual 55

Chapter 4 BIOS Setup

♦

Wait for 'F1' If Error – [Disabled; Enabled]

♦

Hit 'DEL' Message Display – [Disabled; Enabled]

♦

Interrupt 19 Capture – [Disabled; Enabled]

♦

Watchdog Timeout in Seconds – [Disabled]

♦

GPIO Port Configuration – [Disabled; Enabled]

♦

GPIO Port Mask – [11110000]

♦

GPIO Port Init Value – [00000000]

♦

OnBoard Gbit Ethernet Boot ROM – [Enabled; Disabled]

♦

OnBoard Gbit Ethernet2 Boot ROM – [Enabled; Disabled]

♦

1st Boot Device – [1st FLOPPY DRIVE; CD/DVD; Hard Drive; USB: USB Hotplug FDD; Network: IBA GE Slot 0200 v1327; Disabled]

♦

2nd Boot Device – [1st FLOPPY DRIVE; CD/DVD; Hard Drive; USB: USB Hotplug FDD; Network: IBA GE Slot 0200 v1327; Disabled]

♦

3rd Boot Device – [1st FLOPPY DRIVE; CD/DVD; Hard Drive; USB: USB Hotplug FDD; Network: IBA GE Slot 0200 v1327; Disabled]

♦

4th Boot Device – [1st FLOPPY DRIVE; CD/DVD; Hard Drive; USB: USB Hotplug FDD; Network: IBA GE Slot 0200 v1327; Disabled]

♦

5th Boot Device – [1st FLOPPY DRIVE; CD/DVD; Hard Drive; USB: USB Hotplug FDD; Network: IBA GE Slot 0200 v1327; Disabled]

♦

Hard Disk Drives

• 1st Drive – [Not Installed]

♦

Removable Drives

• 1st Drive – [1st FLOPPY DRIVE; Disabled]

♦

CD/DVD Drives

• 1st Drive – [Not Installed]

♦

USB Drives

• 1st Drive – [USB:USB Hotplug FDD; Disabled]

♦

Network drives

• 1st Drive – [Network:IBA GE Slot 0200 v1327; Network:IBA GE Slot 0100 v1327; Disabled]

• 2nd Drive – [Network:IBA GE Slot 0200 v1327; Network:IBA GE Slot 0100 v1327;

Disabled]

56 Reference Manual LittleBoard 735

Chapter 4 BIOS Setup

BIOS Security Setup Screen

BIOS Setup Utility

Main Advanced PCIPnP Boot Security Chipset Exit

Security Settings

Supervisor Password :Not installed User Password :Not installed

Change Supervisor Password Change User Password

Figure 4-5. BIOS Security Setup Screen

• Security Settings

♦

Supervisor Password – [Not Installed]

♦

User Password – [Not Installed]

♦

Change Supervisor Password

Install or Change the password.

Select Screen

Select Item Enter Change F1 General Help F10 Save and Exit ESC Exit

LB735_BIOS_SecurityScreen_a

a. Select Change Supervisor Password from the Security Setup menu.

b. Press <Enter> to access the pop-up entry field, Enter New Password.

c. Type the password and press <Enter> again.

d. The screen will not display the password as you type.

e. Re-type the password when prompted by the pop-up entry field and press <Enter> again.

If the password is not confirmed when you re-type it, an error message will appear. The password is stored in NVRAM if you have successfully entered the password.

♦

Change User Password

a. Select Change User Password from the Security Setup menu.

b. Press <Enter> to access the pop-up entry field, Enter New Password.

c. Type the password and press <Enter> again.

d. The screen will not display the password as you type.

e. Re-type the password when prompted by the pop-up entry field and press <Enter> again.

If the password is not confirmed when you re-type it, an error message will appear. The password is stored in NVRAM if you have successfully entered the password.

LittleBoard 735 Reference Manual 57

Chapter 4 BIOS Setup

BIOS Chipset Setup Screen

BIOS Setup Utility

Main Advanced PCIPnP Boot Security Chipset Exit

Advanced Chipset Settings

WARNING: Setting wrong values in below sections may cause system to malfunction.

NorthBridge Configuration

SouthBridge Configuration

Figure 4-6. BIOS Chipset Setup Screen

• NorthBridge Configuration

♦

DRAM Frequency – [Auto; 400 MHz; 533 MHz]

Configure North Bridge features.

Select Screen

Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

LB735_BIOS_ChipsetScreen_a

♦

Configure DRAM Timing by SPD – [Disabled; Enabled]

♦

Memory Hole – [Disabled; 15MB-16MB]

♦

Boot Graphics Adapter Priority – [IGD; PCI/IGD]

♦

Internal Graphics Mode Select – [Disabled; Enabled, 1 MB; Enabled, 8 MB]

♦

Chipset Thermal Throttling – [Disabled; Enabled]

♦

DT in SPD – [Disabled; Enabled]

♦

TS on DIMM – [Disabled; Enabled]

♦

Video Function Configuration

• DVMT Mode Select – [Fixed Mode; DVMT Mode]

- DVTM/FIXED Memory – [64MB; 128MB; Maximum DVTM]

• Boot Display Device – [Auto; CRT; LFP; LFP+CRT]

• Flat Panel Type – [640x480 18-bit; 800x600 18-bit; 1024x768 18-bit; 1280x1024 18-bit; 1400x1050 18-bit; 1600x1200 18-bit; 1280x768 18-bit; 1680x1050 18-bit; 1920x1200 18-bit; 1280x800 18-bit; 1280x600 18-bit; 2048x1536 18-bit]

• Local Flat Panel Scaling [Auto; Forced Scaling; Disabled]

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Chapter 4 BIOS Setup

• SouthBridge Configuration

• USB Functions – [Disabled; 2 USB Ports; 4 USB Ports; 6 USB Ports]

• USB 2.0 Controller – [Enabled; Disabled]

• AC’97 Audio Controller – [Enabled; Disabled]

• SMBus Controller – [Enabled; Disabled]

• High Precision Event Timer – [Enabled; Disabled]

• SLP_S4# Min. Assertion Width – [4 to 5 seconds; 3 to 4 seconds; 2 to 3 seconds;

1 to 2 seconds]

• Restore on AC Power Loss – [Power Off; Power On; Last State]

BIOS Exit Setup Screen

BIOS Setup Utility

Main Advanced PCIPnP Boot Security Chipset Exit

Exit Options

Save Changes and Exit Discard Changes and Exit Discard Changes

Load Optimal Defaults Load Failsafe Defaults

Exit system setup after saving the changes.

F10 key can be used for this operation.

Figure 4-7. BIOS Exit Setup Screen

Save Changes and Exit

The < F10 > key can be used for this operation.

Discard Changes and Exit

The < ESC > key can be used for this operation.

Discard Changes

The < F7 > key can be used for this operation.

Load Optimal Defaults

The < F9 > key can be used for this operation.

Load Failsafe Defaults

The < F8 > key can be used for this operation.

Select Screen

Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

LB735_BIOS_ExitScreen_a

LittleBoard 735 Reference Manual 59

Chapter 4 BIOS Setup

60 Reference Manual LittleBoard 735

Appendix A Technical Support

ADLINK Technology, Inc.

Address: 9F, No.166 Jian Yi Road, Zhonghe District New Taipei City 235, Taiwan

ᄅקؑխࡉ೴৬ԫሁ 166 ᇆ 9 ᑔ

Tel: +886-2-8226-5877 Fax: +886-2-8226-5717 Email: service@adlinktech.com

Ampro ADLINK Technology, Inc.

Address: 5215 Hellyer Avenue, #110, San Jose, CA 95138, USA Tel: +1-408-360-0200 Toll Free: +1-800-966-5200 (USA only) Fax: +1-408-360-0222 Email: info@adlinktech.com

ADLINK Technology (China) Co., Ltd.

Address: Ϟ⍋Ꮦ⌺ϰᮄᓴ∳催⾥ᡔು㢇᯹䏃 300 ো(201203) 300 Fang Chun Rd., Zhangjiang Hi-Tech Park,

Pudong New Area, Shanghai, 201203 China Tel: +86-21-5132-8988 Fax: +86-21-5132-3588 Email: market@adlinktech.com

ADLINK Technology, Inc. provides a number of methods for contacting Technical Support listed in the

Table A -1 below. Requests for support through the Ask an Expert web page are given the highest priority,

and usually will be addressed within one working day.

• ADLINK Ask an Expert – This is a comprehensive support center designed to meet all your technical

needs. This service is free and available 24 hours a day through the Ampro by ADLINK web page at

http://www.adlinktech.com/AAE/

which will help you with the common information requested by most customers. This is a good source of information to look at first for your technical solutions. However, you must register online if you wish to use the Ask a Question feature.

ADLINK strongly suggests that you register with the web site. By creating a profile on the ADLINK web site, you will have a portal page called “My ADLINK” unique to you with access to exclusive services and account information.

• Personal Assistance – You may also request personal assistance by creating an Ask an Expert account

and then going to the Ask a Question feature. Requests can be submitted 24 hours a day, 7 days a week. You will receive immediate confirmation that your request has been entered followed by an e-mail response. Once you have submitted your request, you must log in to My Stuff where you can check status, update your request, and access other features.

• Download Service – This service is also free and available 24 hours a day at

http://www.adlinktech.com

. This includes a searchable database of Frequently Asked Questions,

. For certain downloads such as technical documents and software, you must

Table A-1. Technical Support Contact Information

Method Contact Information

Ask an Expert http://www.adlinktech.com/AAE/

Web Site http://www.adlinktech.com

Standard Mail

LittleBoard 735 Reference Manual 61

Appendix A Technical Support

Table A-1. Technical Support Contact Information

ADLINK Technology Beijing

Address: ࣫ҀᏖ⍋⎔Ϟഄϰ䏃 1 োⲜ߯ࡼ࡯໻ E ᑻ 801 ᅸ(100085)

Rm. 801, Power Creative E, No. 1, B/D

Shang Di East Rd., Beijing, 100085 China Tel: +86-10-5885-8666 Fax: +86-10-5885-8625 Email: market@adlinktech.com

ADLINK Technology Shenzhen

Address: ⏅ഇᏖቅ⾥ᡔು催ᮄϗ䘧᭄ᄫᡔᴃು

A1 󰶀 2 ὐ C  (518057)

2F, C Block, Bldg. A1, Cyber-Tech Zone, Gao Xin Ave. Sec. 7,

High-Tech Industrial Park S., Shenzhen, 518054 China Tel: +86-755-2643-4858 Fax: +86-755-2664-6353 Email: market@adlinktech.com

ADLINK Technology (Europe) GmbH

Address: Nord Carree 3, 40477 Duesseldorf, Germany Tel: +49-211-495-5552 Fax: +49-211-495-5557 Email: emea@adlinktech.com

ADLINK Technology, Inc. (French Liaison Office)

Address: 15 rue Emile Baudot, 91300 Massy CEDEX, France Tel: +33 (0) 1 60 12 35 66 Fax: +33 (0) 1 60 12 35 66 Email: france@adlinktech.com

ADLINK Technology Japan Corporation

Address: ͱ101-0045 ᵅҀ䛑ҷ⬄⼲⬄䤯ފ⬎ 3-7-4

⼲⬄ 374 ɛɳ 4F

KANDA374 Bldg. 4F, 3-7-4 Kanda Kajicho,

Chiyoda-ku, Tokyo 101-0045, Japan Tel: +81-3-4455-3722 Fax: +81-3-5209-6013 Email: japan@adlinktech.com

ADLINK Technology, Inc. (Korean Liaison Office)

Address: 昢殾柢昢爎割昢爎壟 1506-25 穢壊 B/D 2 猻

2F, Hando B/D, 1506-25, Seocho-Dong, Seocho-Gu,

Seoul 137-070, Korea Tel: +82-2-2057-0565 Fax: +82-2-2057-0563 Email: korea@adlinktech.com

ADLINK Technology Singapore Pte. Ltd.

Address: 84 Genting Lane #07-02A, Cityneon Design Centre,

Singapore 349584 Tel: +65-6844-2261 Fax: +65-6844-2263 Email: singapore@adlinktech.com

ADLINK Technology Singapore Pte. Ltd. (Indian Liaison Office)

Address: No. 1357, "Anupama", Sri Aurobindo Marg, 9th Cross, JP Nagar Phase I, Bangalore - 560078, India Tel: +91-80-65605817 Fax: +91-80-22443548 Email: india@adlinktech.com

62 Reference Manual LittleBoard 735

Index

AMI BIOS 8 user’s guide specification reference 2 assistance, technical Atom N270 CPU audio

CODEC datasheet reference interface description interface features interface pin-out list

............................................ 61

...........................................2, 4, 5

........................... 2

...................................... 34

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

...................................... 34

battery

features input interface interface description

Real Time Clock (RTC) beep speaker BIOS

access to BIOS setup (local display)

Advanced setup screen

Boot setup screen

Chipset setup screen

Exit setup screen

logo screen (Splash)

Main setup screen

PCIPnP setup screen

recovery feature

Security setup screen

setup screens

setup supported features

setup using remote access

User Guide reference

Watchdog Timer (WDT) feature block diagram board features boot features

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

............................................... 43

...................................... 30

................................ 39

........................................................ 30

............. 45

.................................. 48

.......................................... 55

...................................... 58

........................................... 59

...................................... 46

......................................... 47

..................................... 54

........................................6, 40

..................................... 57

................................................. 47

................................ 47

............................. 45

...................................... 2

.................. 41

....................................................... 7

........................................................ 5

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

connectors

headers and connectors list console redirection CPU

datasheet reference

fan interface (optional) pin-out list

features

.............................................. 40

.......................................... 2

............................................................ 5

........................... 12

............... 42

dimensions .......................................................... 17

EBX

Architecture

specification reference Environmental specifications

..................................................... 3

.................................... 1

.............................. 18

Ethernet

chip specification reference ground

............................................................14

interface features LED interfaces

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

...............................................42

.............................2

fan

interface pin-out list voltage limits

floppy interface

description features

.....................................................24

.............................................................5

.......................................42

.................................................42

GLAN LED interfaces .........................................42

GPIO interface Graphics Memory Hub datasheet reference

.....................................................39

..........2

hardware overview ..............................................21

headers and connectors list heatsinks descriptions height, overall hot cable (modified serial cable) humidity ranges

......................................................17

...................................................18

..................................12

..........................................19

.........................41

I/O address map ...................................................23

ICH datasheet reference IDE interface features interrupt channel assignments IRQs

.....................................................................22

ISA bus features

........................................2

............................................5

.............................22

....................................................5

jumper header locations .......................................15

keyboard interface

description features

.....................................................30

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

LAN LED interfaces ...........................................42

LED

Ethernet pin-out lists

power-on length logo screen (Splash)

customization

requirements LVDS

interface features

interface pin-out list

........................................................30

...................................................................17

..................................................46

......................................42

.................................................46

....................................... 6, 35

.......................................36

major ICs

list

....................................................................8

specification web sites

.....................................2

LittleBoard 735 Reference Manual 63

Index

memory

features map

miscellaneous

features

hardware functions modified serial cable mouse interface features

............................................................5

................................................................23

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

..................................21, 39

...........................................41

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

Northbridge datasheet reference ........................... 2

on-line support .................................................... 61

Oops! Jumper

(BIOS recovery) description

features

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

......................... 40

parallel port

description

features

pin-out list PC/104-Plus

bus features PCI Express Mini Card specification reference PCI specification reference PCI-to-ISA bridge

datasheet reference

mapping pin sequence identification pin-1 locations power

consumption table

input voltage requirements

interface descriptions

power button and reset switch interface

power-in interface pin-out list

specifications processor requirements, heatsinks product description PS/2 interface

features

keyboard

..................................................... 25

............................................................5

.....................................................25

...................................................... 5

.... 1

................................... 1

.......................................... 2

.........................................................46

.................................13

..................................................... 14

......................................... 18

............................ 38

....................................38

........ 38

....................... 38

................................................. 18

...................... 19

............................................... 4

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

........................................................ 30

Real Time Clock

description

features references, specification registration, web site remote access

description

features

procedure reset switch

interface description

interface pin-out list

..................................................... 39

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

........................................1

........................................... 61

..................................................... 40

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

.......................................................45

...................................... 30

...................................... 38

RS232 function RS485 function

................................................... 26

sample code

GPIO

............................................................. 39

WDT

............................................................. 41

serial ports

access to BIOS setup features pin-out lists remote access terminal, ANSI-compatible

SMBus

description interface pin-out list

slave addresses Southbridge datasheet reference speaker specification references Super I/O controller datasheet reference supported features

200-pin DDR2 SODIMM socket

AT power-in interface

Atom N270 CPU

ATX power-on interface

audio AC’97 interface

battery-free boot

console redirection

CPU optional fan header

Ethernet interfaces

external battery

external GLAN Activity LED

floppy interface

heatsinks

I/O address map

IRQ assignments

ISA bus

jumper headers, on board

logo screen (Splash)

LVDS interface

memory

memory map

on-board battery

Oops! jumper (BIOS recovery)

parallel port

PC ’Beep’ speaker interface

PC/104 bus

PC/104-Plus bus

power button

PS/2 interfaces

Real Time Clock

remote access

reset switch interface

RS485 function

serial ports

............................................................ 5

................................................... 27

..................................................... 31

................................................................ 30

........................................................ 19

........................................................... 5

................................................. 23

...............................................5, 25

...................................................... 5

................................................. 38

.................................................5, 26

..................................... 45

................................................ 40

........................... 40

...................................... 40

.............................................. 31

........................... 2

........................................ 1

.................... 5

................................... 38

............................................. 5

............................... 38

...............................6, 34

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

........................................ 40

............................... 42

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

......................................... 6, 30

....................... 42

.........................................5, 24

............................................ 23

........................................... 22

.............................. 15

...................................... 46

............................................. 36

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

................. 6, 40

......................... 30

.............................................. 5

.......................................... 6, 30

.......................................6, 39

............................................ 6, 40

.................................... 30

............................................. 26

.............. 2

64 Reference Manual LittleBoard 735

Index

SMBus devices .............................................. 31

thermal monitoring USB 2.0 description USB ports user GPIO capability VGA interface video interfaces voltage monitoring Watchdog Timer (WDT)

........................................................ 5

....................................6, 39

...................................... 32

..................................... 39

............................................... 36

.........................................6, 35

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

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

technical support ................................................. 61

temperature

monitoring description ranges

............................................................ 18

terminal emulation software thermal

cooling requirements monitoring description

monitoring features thickness, board TV Out

interface features

interface pin-out list two-wire serial port

.................................................. 17

.................................. 39

............................... 40

..................................... 19

.................................. 39

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

.......................................6, 35

...................................... 37

............................................. 26

USB

features

interface descriptions

pin-out list (ports 0 & 1)

pin-out list (ports 2 & 3)

pin-out list (ports 4 & 5)

............................................................ 5

.................................... 32

............................... 33

............................... 34

utility interfaces

functions functions (utility 1) functions (utility 2) pin-out list (utility 1) pin-out list (utility 2)

........................................................21

........................................30

........................................31

......................................30

......................................31

VGA

interface features interface pin-out list

video

interface features LVDS interface pin-out list TV Out interface pin-out list VGA interface pin-out list

voltage

ATX power supply requirement CPU fan limits monitoring features power-in requirements

....................................... 6, 35

.......................................36

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

...........................36

.........................37

.............................36

....................38

...............................................42

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

...................................38

Watchdog Timer

description features

web sites

ADLINK major IC specifications standards specifications

weight

..................................................................17

width

....................................................................17

.....................................................41

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

........................................................61

....................................2

...................................1

LittleBoard 735 Reference Manual 65

Index

66 Reference Manual LittleBoard 735

ADLINK LittleBoard 735 Reference Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice Page

Index