Acrosser AR-B1552 User Manual

AR-B1552

INDUSTRIAL GRADE

CPU BOARD

User’ s Guide

Edition: 1.21

Book Number: AR-B1552-02.0808

AR-B1552 User’s Guide

Table of Contents

0. PREFACE .....................................................................................................................................................................3

0.1 COPYRIGHT NOTICE AND DISCLAIMER ................................................................................................................................. 3

0.2 WELCOME TO THE AR-B1552 CPU BOARD............................................................................................................................. 3

0.3 BEFORE YOU USE THIS GUIDE ............................................................................................................................................... 3

0.4 RETURNING YOUR BOARD FOR SERVICE ............................................................................................................................. 3

0.5 TECHNICAL SUPPORT AND USER COMMENTS ..................................................................................................................... 3

0.6 ORGANIZATION......................................................................................................................................................................... 4

0.7 STATIC ELECTRICITY PRECAUTIONS..................................................................................................................................... 4

1. OVERVIEW...................................................................................................................................................................5

1.1 SPECIFICATION ........................................................................................................................................................................ 5

1.2 PACKING LIST ........................................................................................................................................................................... 6

1.3 FEATURES................................................................................................................................................................................. 6

2. SYSTEM CONTROLLER .............................................................................................................................................7

2.1 MICROPROCESSOR.................................................................................................................................................................. 7

2.2 DMA CONTROLLER................................................................................................................................................................... 7

2.3 KEYBOARD CONTROLLER....................................................................................................................................................... 8

2.4 INTERRUPT CONTROLLER....................................................................................................................................................... 8

2.4.1 I/O Port Address Map........................................................................................................................................................... 9

2.4.2 Real-Time Clock and Non-Volatile RAM............................................................................................................................. 10

2.4.3 Timer.................................................................................................................................................................................. 10

2.5 SERIAL PORT .......................................................................................................................................................................... 11

2.6 PARALLEL PORT ..................................................................................................................................................................... 13

3. SETTING UP THE SYSTEM.......................................................................................................................................15

3.1 OVERVIEW............................................................................................................................................................................... 15

3.2 SYSTEM SETTING................................................................................................................................................................... 16

3.2.1 SDRAM SOCKET 144 PIN..................................................................................................................................................... 16

3.2.2 Hard Disk Connector.......................................................................................................................................................... 16

3.2.3 FDD Port Connector........................................................................................................................................................... 17

3.2.4 Parallel Port Connector (LPT)............................................................................................................................................. 17

3.2.5 Keyboard & Mouse Connector (KM)................................................................................................................................... 18

3.2.6 USB Connector (USB1)...................................................................................................................................................... 18

3.2.7 LED Header (LED1) ........................................................................................................................................................... 18

3.2.8 COM1.................................................................................................................................................................................18

3.2.9 COM2.................................................................................................................................................................................19

3.2.10 CRT Connector (CRT)...................................................................................................................................................... 19

3.2.11 NETWORK Setting........................................................................................................................................................... 19

3.2.12 IrDA Header (IR)............................................................................................................................................................... 20

3.2.13 Touch Screen................................................................................................................................................................... 20

3.2.14 Reset Button (RST).......................................................................................................................................................... 20

3.2.15 PC104 CONNECTOR.......................................................................................................................................................20

3.2.16 AUDIO HEADER.............................................................................................................................................................. 21

3.2.17 TV-OUT CONNECTOR (J3)............................................................................................................................................. 21

3.2.18 POWER CO N N ECTOR (PWR4 & PWR 8 )........................................................................................................................ 22

3.2.19 BATTER Y SELECT (J1 & JP1)......................................................................................................................................... 22

3.2.20 DOC SOCKET (U22)........................................................................................................................................................ 22

3.2.21 DOC ADDRESS SELECT (JP4)....................................................................................................................................... 22

3.3 WATCHDOG TIMER................................................................................................................................................................. 23

3.3.1 Watchdog Timer Setting..................................................................................................................................................... 23

3.3.2 Watchdog Timer Trigger..................................................................................................................................................... 24

4. INSTALLATION..........................................................................................................................................................25

4.1 OVERVIEW............................................................................................................................................................................... 25

4.2 UTILITY CD-ROM ..................................................................................................................................................................... 25

4.2.1 Driver Installation................................................................................................................................................................25

5. BIOS CONSOLE.........................................................................................................................................................27

5.1 BIOS SETUP OVERVIEW......................................................................................................................................................... 27

5.2 STANDARD CMOS SETUP ...................................................................................................................................................... 28

5.3 BIOS FEATURES SETUP......................................................................................................................................................... 29

5.4 CHIPSET FEATURES SETUP.................................................................................................................................................. 31

5.5 PNP/PCI CONFIGURATION ..................................................................................................................................................... 32

5.6 LOAD DEFAULT SETTING....................................................................................................................................................... 32

5.6.1 Load BIOS Defaults............................................................................................................................................................ 32

5.6.2 Load Setup Defaults........................................................................................................................................................... 32

5.7 INTEGRATED PERIPHERALS ................................................................................................................................................. 33

5.8 PASSWORD SETTING............................................................................................................................................................. 34

5.8.1 Setting Password ............................................................................................................................................................... 34

5.8.2 Password Ch e c king............................................................................................................................................................ 34

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AR-B1552 User’s Guide

5.9 IDE HDD AUTO DETECTION ................................................................................................................................................... 34

5.10 BIOS EXIT............................................................................................................................................................................... 34

5.10.1 Save & Exit Setup............................................................................................................................................................. 34

5.10.2 Exit Without Saving.......................................................................................................................................................... 34

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AR-B1552 User’s Guide

0.PREFACE

0.1 COPYRIGHT NOTICE AND DISCLAIMER

JULY 2001

This document is copyrighted, 2002, by Acrosser Technology Co., Ltd. All rights are reserved. No part of this
manual maybe reproduced, copied, transcribed, stored in a retrieval system, or translated into any language or
computer language in any form or by any means, such as electronic, mechanical, magnetic, optical, chemical,
manual or other means without prior written permission of original manufacturer.
Acrosser Technology assumes no responsibility or warranty with respect to the contents in this manual and
specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore,
Acrosser Technology reserves the right to make improvements to the products described in this manual at any
times without notice. Such revisions will be posted on the Internet (WWW.ACROSSER.COM
possible.
Possession, use, or copying of the software described in this publication is authorized only pursuant to a valid
written license from Acrosser or an authorized sub licensor.

ACKNOWLEDGEMENTS

Acrosser, AMI, IBM PC/AT, ALI, Windows 3.1, MS-DOS, …are registered trademarks.
All other trademarks and registered trademarks are the property of their respective holders.

) as soon as

0.2 WELCOME TO THE AR-B1552 CPU BOARD

This guide introduces the Acrosser AR-B1552 CPU board.
The information provided in this manual describes this card’s functions and features. It also helps you start, set up
and operate your AR-B1552. General system information can also be found in this publication.

0.3 BEFORE YOU USE THIS GUIDE

Please refer to the Chapter 3, “Setting Up The System” in this guide, if you have not already installed AR-B1552.
Check the packing list before you install and make sure the accessories are completely included.

The CD-ROM provides the newest information regarding the CPU card. Please refer to the files of the
enclosed utility diskette. It contains the modification, hardware & software information, and it has updated to

product functions that may not be mentioned here.

0.4 RETURNING YOUR BOARD FOR SERVICE

If your board requires any services, contact the distributor or sales representative from whom you purchased the
product for service information. If you need to ship your board to us for service, be sure it is packed in a protective
carton. We recommend that you keep the original packaging for this purpose.
You can assure efficient servicing for your product by following these guidelines:

1. Include your name, address, daytime telephone and facsimile numbers and E-mail.

2. A description of the system configuration and/or software at the time is malfunction,

3. And a brief description of the problem occurred.

0.5 TECHNICAL SUPPORT AND USER COMMENTS

User’s comments are always welcome as they assist us in improving the quality of our products and the
readability of our publications. They create a very important part of the input used for product enhancement and
revision.
We may use and distribute any of the information you provide in any way appropriate without incurring any
obligation. You may, of course, continue to use the information you provide.
If you have any suggestions for improving particular sections or if you find any errors on it, please send your
comments to Acrosser Technology Co., Ltd. or your local sales representative and indicate the manual title and
book number.

Internet electronic mail to: [e-mail]

Check our FAQ sheet for quick fixes to known technical problems.

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AR-B1552 User’s Guide

0.6 ORGANIZATION

This manual covers the following topics (see the Table of Contents for a detailed listing):

! Chapter 1, “Overview”, provides an overview of the system features and packing list.
! Chapter 2, “System Controller” describes the major structure.
! Chapter 3, “Setting Up the System”, describes how to adjust the jumper, and the connector’s settings.
! Chapter 4, “Installation”, describes setup procedures including information on the utility CD-ROM.
! Chapter 5, “BIOS Console”, provides the BIOS options settings.

0.7 STATIC ELECTRICITY PRECAUTIONS

Before removing the board from its anti-static bag, read this section about static electricity precautions.
Static electricity is a constant danger to computer systems. The charge that can build up in your body may be
more than sufficient to damage integrated circuits on any PC board. It is, therefore, important to observe basic
precautions whenever you use or handle computer components. Although areas with humid climates are much
less prone to static build-up, it is always best to safeguard against accidents that may result in expensive repairs.
The following measures should be sufficient to protect your equipment from static discharge:

• Touch a grounded metal object to discharge the static electricity in your body (or ideally, wear a grounded

wrist strap).

• When unpacking and handling the board or other system components, place all materials on an anti-static

surface.

• Be careful not to touch the components on the board, especially the “golden finger” connectors on the bottom

of the board.

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AR-B1552 User’s Guide

1. OVERVIEW

This is an AR-B1552 Pentium CPU Board with Ethernet, DOM.
This chapter provides an overview of your system features and capabilities. The following topics are covered:

!

Specification

!

Packing List

!

Features

1.1 SPECIFICATION

!

CPU: Cyrix GX1 233~300MHz.

!

Chipset: Cyrix CS5530A

!

Features

!

RAM Memory: Supports 1 X SODIMM sockets, 128MB maximum.

!

SSD: Compact Flash Interface X 1.

!

Watchdog: Software programmable 1~63sec.

!

VGA Display: GX1 UMA.

CRT – with HDB 15-pin connector.

LCD 2mm Pin Header

TV-OUT for NTSC and PAL modes

!

Ethernet: RT8139C chipset, supports 10/100M base T with RJ-45 connector built-in Led.
Audio: CS5530A on-chip AC97 compatible audio.

!

Super I/O: Winbond 83977TF

!

1 EIDE (Ultra DMA33)– with one 2.00 mm 44-pin connectors
1 FDC – with 2.54 mm 34-pin connector.
1 Parallel – with 2.54 mm 26-pin connector. Supports SPP/EPP/ECP mode.
1 RS-232C –

1 RS-232C/RS485/IrDA/Touch Screen –

RS-232C is selected by jumper and use the same connector.

IrDA use 2.54mm 5-pin header.

Touch Screen uses 2.0mm 3-pin JST connector.

USN: A specific Universal Serial Number is attached for hardware identification

!

(accomplished by Dallas DS2401 Silicon Serial Number).

Keyboard/Mouse: PS/2 compatible 6-pin mini-DIN connector located at bracket.

!

USB: Built-in 2 ports USB interface with 2.54mm 10-pin headers.

!

RTC: Chipset included, supports ACPI function with 10 years data retention.

!

Speaker: Supports on-board buzzer.

!

Expansion Bus: PC/104

!

LED Indicators: Power LED. LAN LED at LAN port.

!

Power Req.: +5V-3.0A maximum and 12V –0.5A maximum.

!

Power Connector: One 8-pin 2.5mm JST, one 4-pin 5.08mm wafer connector.

!

CE Design-In: Add EMI components to COM ports, Parallel port, CRT, USB, Keyboard, and PS/2

!

mouse.
PC Board: 8 layers, EMI considered. Especially in switching power layout.

!

Dimensions: 145mm x 102 mm (5.7" x 4").

!

1 Software utility CD

!

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AR-B1552 User’s Guide

1.2 PACKING LIST

Some accessories are included with the system. Before you begin installing your AR-B1552 board, take a moment
to make sure that the following items have been included inside the AR-B1552 package.

The quick setup manual

!

1 AR-B1552 all-in-one single CPU board

!

1 Hard disk drive interface cable

!

1 floppy interface cable

!

1 Audio adapter cable

!

1 LPT cable

!

1 COM cable

!

1 Keyboard & Mouse cable

!

1 TV-OUT interface cable for NTSC and PAL modes

!

Acrosser’s AR-B9425 audio card

!

1.3 FEATURES

The system provides a number of special features that enhance its reliability, ensure its long-term availability, and
improve its expansion capabilities, as well as its hardware structure.

CPU NS GEODE GX1/GXLV

!

Cyrix CS5530A Chipset

!

Chrontel CH7006 TV-OUT

!

Supports 1 x SODIMM, 128 MB Maximum

!

Supports DOM Flash Disk

!

1 x 10/100M-Base2 Ethernet

!

AWARD flash BIOS

!

Power Req.: 5V, 2.5A

!

Dimensions: 145 mm x 102 mm

!

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AR-B1552 User’s Guide

2. SYSTEM CONTROLLER

This chapter describes the main structure of the AR-B1552 CPU board. The following topics are covered:

! Microprocessors
! DMA Controller
! Keyboard Controller

Interrupt Controller

!
! Serial Port
! Parallel Port

2.1 MICROPROCESSOR

The AR-B1552 uses the NS GEODE GX1/GXLV CPU (or other GXM CPUs), it is an advanced 32-bit x86
compatible processor offering high performance, fully accelerated 2D graphics, a 64-synchronous DRAM controller
and a PCI bus controller, all on a single chip. This latest generation of the MediaGX processor enables a new
class of premium performance notebook/desktop, and IPC computer designs.
The MediaGX MMX enhanced processor companion chips provide advanced video and audio functions and permit
direct interface to memory. This high-performance 64-bit processor is x86 instruction set compatible and supports
MMX technology.
This processor is the latest member of the NS MediaGX family, offering high performance, fully accelerated 2D
graphics, synchronous memory interface and a PCI bus controller, all on a single chip. As described in separate
manuals, the CS5520 and the CS5530 I/O Companion chips fully enable the features of the MediaGX processor
with MMX support. These features include full VGA and VESA video, 16-bit stereo sound, IDE interface, ISA
interface, SMM power management, and AT compatibility logic. In addition, the newer CS5530 provides an Ultra
DMA/33 interface, MPEG2 assist, and is AC97 Version 2.0 audio compliant.
In addition to the advanced CPU features, the MediaGX processor integrates a host of functions, which are
typically implemented with external components. A full-function graphics accelerator provides pixel processing and
rendering functions.
The NS MediaGX MMX-Enhanced Processor represents a new generation of x86-compatible 64-bit
microprocessors with sixth-generation features. The decoupled load/store unit (within the memory management
unit) allows multiple instructions in a single clock cycle. Other features include single-cycle execution, single-cycle
instruction decode, 16KB write-back cache, and clock rates up to 300MHz. These features are possible by the use
of advanced-process technologies and superpipelining.

2.2 DMA CONTROLLER

The equivalent of two 8237A DMA controllers are implemented on the AR-B1552 board. Each controller is a four­channel DMA device that will generate the memory addresses and control signals necessary to transfer
information directly between a peripheral device and memory. This allows high-speed information transfer with less
CPU intervention. The two DMA controllers are internally cascaded to provide four DMA channels for transfers to
8-bit peripherals (DMA1) and three channels for transfers to 16-bit peripherals (DMA2). DMA2 channel 0 provides
the cascade interconnection between the two DMA devices, thereby maintaining IBM PC/AT compatibility.

The Following is the system information for the DMA channels:

Slave with four 8-bit CHNLS Master with three 16-bit CHNLS

DMA Controller 1 DMA Controller 2

Channel 0: Spare Channel 4(0): Cascade for controller 1

Channel 1: IBM SDLC Channel 5(1): Spare

Channel 2: Diskette adapter Channel 6(2): Spare

Channel 3: Spare Channel 7(3): Spare

DMA Channel Controller

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AR-B1552 User’s Guide

2.3 KEYBOARD CONTROLLER

The 8042 processor is programmed to support the keyboard serial interface. The keyboard controller receives
serial data from the keyboard, checks its parity, translates scan codes, and presents it to the system as a byte data
in its output buffer. The controller can interrupt the system when data is placed in its output buffer, or wait for the
system to poll its status register to determine when data is available. Data can be written to the keyboard by writing
data to the output buffer of the keyboard controller. Each byte of data is sent to the keyboard controller in a series
with an odd parity bit automatically inserted. The keyboard controller is required to acknowledge all data
transmissions. Therefore, another byte of data will not be sent to keyboard controller until acknowledgment is
received for the previous byte sent. The “output buffer full” interruption may be used for both send and receive
routines.

2.4 INTERRUPT CONTROLLER

The equivalent of two 8259 Programmable Interrupt Controllers (PIC) are included on the AR-B1552 board. They
accept requests from peripherals, resolve priorities on pending interrupts in service, issue interrupt requests to the
CPU, and provide vectors which are used as acceptance indices by the CPU to determine which interrupt service
routine to execute. These two controllers are cascaded with the second controller representing IRQ8 to IRQ15,
which is rerouted through IRQ2 on the first controller.

The following is the system information of interrupts levels:

Interrupt Level Description

NMI Parity check
CTRL1
IRQ0
IRQ1

IRQ2

CTRL2

System timer interrupt from timer 8254

keyboard output buffer full
Rerouting to IRQ8 to IRQ15

IRQ8:Real time clock
IRQ9:Reserved for Watch Dog
IRQ10:Reserved
IRQ11:Reserved
IRQ12:Reserved for PS/2 mouse
IRQ13:Math.Co-processor
IRQ14:Hard disk adapter
IRQ15:Reserved

IRQ3 Serial port(depends on setup assignment)
IRQ4 Serial port(depends on setup assignment)
IRQ5 Reserved
IRQ6 Reserved for floppy disk adapter
IRQ7 Parallel port 1

Interrupt Controller

8

2.4.1 I/O Port Address Map

Hex Range Device

000-01F DMA controller 1
020-021 Interrupt controller 1
022-023 Cyrix CS5530
040-04F Timer 1
050-05F Timer 2
060-06F 8042 keyboard/controller
070-071 Real-time clock (RTC), non-maskable interrupt (NMI)
080-09F DMA page registers

0A0-0A1 Interrupt controller 2

0C0-0DF DMA controller 2

0F0 Clear Math Co-processor
0F1 Reset Math Co-processor

0F8-0FF Math Co-processor

170-178 Reserved for Fixed disk 1

1F0-1F8 Fixed disk 0

201 Reserved for Game port
208-20A EMS register 0
218-21A EMS register 1

278-27F Parallel printer port (depends on setup assignment)

2E8-2EF Serial port (depends on setup assignment)

2F8-2FF Serial port (depends on setup assignment)

300-31F Prototype card/streaming type adapter
320-33F Reserved
378-37F Parallel printer port (depends on setup assignment)

380-38F SDLC, bisynchronous
3A0-3AF Bisynchronous
3B0-3BF Monochrome display and printer port 3 (LPT 3)
3C0-3CF EGA/VGA adapter
3D0-3DF Color/graphics monitor adapter
3E8-3EF Serial port 3 (depends on setup assignment)

3F0-3F7 Reserved for diskette controller
3F8-3FF Serial port (depends on setup assignment)

AR-B1552 User’s Guide

I/O Port Address Map

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AR-B1552 User’s Guide

2.4.2 Real-Time Clock and Non-Volatile RAM

The AR-B1552 contains a real-time clock compartment that maintains the date and time in addition to storing
configuration information about the computer system. It contains 14 bytes of clock and control registers and
114 bytes of general purpose RAM. Because of the use of CMOS technology, it consumes very little power
and can be maintained for long periods of time using an internal Lithium battery. The contents of each byte in
the CMOS RAM are listed as follows:

Address Description

00 Seconds
01 Second alarm
02 Minutes
03 Minute alarm
04 Hours
05 Hour alarm
06 Day of week
07 Date of month
08 Month

09 Year
0A Status register A
0B Status register B
0C Status register C
0D Status register D
0E Diagnostic status byte
0F Shutdown status byte
10 Diskette drive type byte, drive A and B
11 Fixed disk type byte, drive C
12 Fixed disk type byte, drive D
13 Reserved
14 Equipment byte
15 Low base memory byte
16 High base memory byte
17 Low expansion memory byte
18 High expansion memory byte

19-2D Reserved
2E-2F 2-byte CMOS checksum

30 Low actual expansion memory byte
31 High actual expansion memory byte
32 Date century byte
33 Information flags (set during power on)

34-7F Reserved for system BIOS

Real-Time Clock & Non-Volatile RAM

2.4.3 Timer

The AR-B1552 provides three programmable timers, each with a timing frequency of 1.19 MHz.

Timer 0 The output of this timer is tied to interrupt request 0. (IRQ 0)

Timer 1 This timer is used to trigger memory refresh cycles.

Timer 2 This timer provides the speaker tone.

Application programs can load different counts into this timer to generate various sound frequencies.

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AR-B1552 User’s Guide

2.5 SERIAL PORT

The ACEs (Asynchronous Communication Elements ACE1 to ACE4) are used to convert parallel data to a serial
format on the transmit side and convert serial data to parallel on the receiver side. The serial format, in order of
transmission and reception, is a start bit, followed by five to eight data bits, a parity bit (if programmed) and one,

1.5 (in a five-bit format only) or two stop bits(in a 6,7, or 8-bit format). The ACEs are capable of handling divisors of
1 to 65535, and produce a 16x clock for driving the internal transmitter logic.
Provisions are also included to use this 16x clock to drive the receiver logic. Also included in the ACE a completed
MODEM control capability, and a processor interrupt system that may be software tailored to the computing time
required to handle the communications link.
The following table is a summary of each ACE accessible register

DLAB Port Address Register

Receiver buffer (read) 0 base + 0
Transmitter holding register (write)

0 base + 1 Interrupt enable
X base + 2 Interrupt identification (read only)
X base + 3 Line control
X base + 4 MODEM control
X base + 5 Line status
X base + 6 MODEM status
X base + 7 Scratched register

1 base + 0 Divisor latch (least significant byte)

1 base + 1 Divisor latch (most significant byte)

ACE Accessible Registers

(1) Receiver Buffer Register (RBR)

Bit 0-7: Received data byte (Read Only)

(2) Transmitter Holding Register (THR)

Bit 0-7: Transmitter holding data byte (Write Only)

(3) Interrupt Enable Register (IER)

Bit 0: Enable Received Data Available Interrupt (ERBFI)
Bit 1: Enable Transmitter Holding Empty Interrupt (ETBEI)
Bit 2: Enable Receiver Line Status Interrupt (ELSI)
Bit 3: Enable MODEM Status Interrupt (EDSSI)
Bit 4: Must be 0
Bit 5: Must be 0
Bit 6: Must be 0
Bit 7: Must be 0

(4) Interrupt Identification Register (IIR)

Bit 0: “0” if Interrupt Pending
Bit 1: Interrupt ID Bit 0
Bit 2: Interrupt ID Bit 1
Bit 3: Must be 0
Bit 4: Must be 0
Bit 5: Must be 0
Bit 6: Must be 0
Bit 7: Must be 0

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AR-B1552 User’s Guide

(5) Line Control Register (LCR)

Bit 0: Word Length Select Bit 0 (WLS0)
Bit 1: Word Length Select Bit 1 (WLS1)

WLS1 WLS0 Word Length

0 0 5 Bits
0 1 6 Bits
1 0 7 Bits

1 1 8 Bits
Bit 2: Number of Stop Bit (STB)
Bit 3: Parity Enable (PEN)
Bit 4: Even Parity Select (EPS)
Bit 5: Stick Parity
Bit 6: Set Break
Bit 7: Divisor Latch Access Bit (DLAB)

(6) MODEM Control Register (MCR)

Bit 0: Data Terminal Ready (DTR)
Bit 1: Request to Send (RTS)
Bit 2: Out 1 (OUT 1)
Bit 3: Out 2 (OUT 2)
Bit 4: Loop
Bit 5: Must be 0
Bit 6: Must be 0
Bit 7: Must be 0

(7) Line Status Register (LSR)

Bit 0: Data Ready (DR)
Bit 1: Overrun Error (OR)
Bit 2: Parity Error (PE)
Bit 3: Framing Error (FE)
Bit 4: Break Interrupt (BI)
Bit 5: Transmitter Holding Register Empty (THRE)
Bit 6: Transmitter Shift Register Empty (TSRE)
Bit 7: Must be 0

(8) MODEM Status Register (MSR)

Bit 0: Delta Clear to Send (DCTS)
Bit 1: Delta Data Set Ready (DDSR)
Bit 2: Training Edge Ring Indicator (TERI)
Bit 3: Delta Receive Line Signal Detect (DSLSD)
Bit 4: Clear to Send (CTS)
Bit 5: Data Set Ready (DSR)
Bit 6: Ring Indicator (RI)
Bit 7: Received Line Signal Detect (RSLD)

(9) Divisor Latch (LS, MS)

Bit 0: Bit 0 Bit 8
Bit 1: Bit 1 Bit 9
Bit 2: Bit 2 Bit 10
Bit 3: Bit 3 Bit 11
Bit 4: Bit 4 Bit 12
Bit 5: Bit 5 Bit 13
Bit 6: Bit 6 Bit 14
Bit 7: Bit 7 Bit 15

LS MS

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AR-B1552 User’s Guide

Desired Baud Rate Divisor Used to Generate 16x Clock

300 384

600 192
1200 96
1800 64
2400 48
3600 32
4800 24
9600 12

14400 8
19200 6
28800 4
38400 3
57600 2

115200 1

Serial Port Divisor Latch

2.6 PARALLEL PORT

(1) Register Address

Port Address Read/Write Register

base + 0 Write Output data
base + 0 Read Input data
base + 1 Read Printer status buffer
base + 2 Write Printer control latch

Registers’ Address

(2) Printer Interface Logic

The parallel port of the W83977F-A is for attaching various devices that accept eight bits of parallel data at
standard TTL level.

(3) Data Swapper

The system microprocessor can read the contents of the printer’s Data Latch through the Data Swapper by reading
the Data Swapper address.

(4) Printer Status Buffer

The system microprocessor can read the printer status by reading the address of the Printer Status Buffer. The bit
definitions are described as follows:

12345670

XXX

NOTE: X presents not used.

Printer Status Buffer

-ERROR
SLCT
PE

-ACK

-BUSY

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AR-B1552 User’s Guide

A

Bit 7: This signal may become active during data entry, when the printer is off-line during printing, or when the

print head is changing position or in an error state. When Bit 7 is active, the printer is busy and cannot
accept data.

Bit 6: This bit represents the current state of the printer’s ACK signal. A0 means the printer has received the

character and is ready to accept another. Normally, this signal will be active for approximately 5
microseconds before receiving a BUSY message stops.

Bit 5: A1 means the printer has detected the end of the paper.

Bit 4: A1 means the printer is selected.

Bit 3: A0 means the printer has encountered an error condition.

(5) Printer Control Latch & Pr inter Control Swapper

The system microprocessor can read the contents of the printer control latch by reading the address of printer
control swapper. Bit definitions are as follows:

7

X X

5

6

3

4

1

2

0

STROBE

INIT
SLDC IN

IRQ ENABLE

DIR(write only)

Bit’s Definition

NOTE: X presents not used.

Direction control bit. When logic 1, the output buffers in the parallel port are disabled allowing data driven

Bit 5:

from external sources to be read; when logic 0, they work as a printer port. This bit is write only.

Bit 4: A1 in this position allows an interrupt to occur when ACK changes from low state to high state.

Bit 3: A1 in this bit position selects the printer.

Bit 2: A0 starts the printer (50 microseconds pulse, minimum).

Bit 1: A1 causes the printer to line-feed after a line is printed.

Bit 0: A0.5 microsecond minimum highly active pulse clocks data into the printer. Valid data must be present for

a minimum of 0.5 microseconds before and after the strobe pulse.

UTO FD XT

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AR-B1552 User’s Guide

3. SETTING UP THE SYSTEM

This section describes pin assignments for the system’s external connectors and the jumper settings.

! Overview
! System Setting

3.1 OVERVIEW

AR-B1552 Pentium Grade Firewall CPU Board with Ethernet, DOM. This section provides the hardware’s jumper
settings, the connectors’ locations, and the pin assignments.

External System Location

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AR-B1552 User’s Guide

3.2 SYSTEM SETTING

3.2.1 SDRAM SOCKET 144 PIN

3.2.2 Hard Disk Connector

A 44-pin header type connector (CN4) is provided to interface with up to two embedded hard disk drives (IDE AT
bus). This interface through a 44-pin cable allows the user to connect up to two drives in a “daisy chain” fashion.
To enable or disable the hard disk controller, please use the BIOS Setup program, which is explained further in
chapter 5. The following table illustrates the pin assignments of the hard disk drive’s 44-pin connector.

- IDE1

244

1

43

- CF1

Pin Signal Pin Signal

1 -RESET 2 GROUND

3 DATA 7 4 DATA 8

5 DATA 6 6 DATA 9

7 DATA 5 8 DATA 10

9 DATA 4 10 DATA 11

11 DATA 3 12 DATA 12

13 DATA 2 14 DATA 13

15 DATA 1 16 DATA 14

17 DATA 0 18 DATA 15

19 GROUND 20 NOT USED

21 IDEDREQ 22 GROUND
23 -IOW A 24 GROUND

25 -IOR A 26 GROUND

27 IDEIORDYA 28 GROUND

29 -DACKA 30 GROUND

31 AINT 32 GROUND

33 SA 1 34 Not Used

35 SA 0 36 SA 2

37 CS 0 38 CS 1

39 HD LED A 40 GROUND

41 VCC 42 VCC

43 GROUND 44 Not Used

Hard Disk (IDE) Connector

16

3.2.3 FDD Port Connector

Pin Signal Pin Signal

1-33(odd) GROUND 18 -DIRECTION

2 -REDUCED WRITE CURRENT 20 -STEP OUTPUT PULSE

4 NOT USED 22 -WRITE DATA

6 NOT USED 24 -WRITE ENABLE

8 -INDEX 26 -TRACK 0

10 -MOTOR ENABLE A 28 -WRITE PROTECT

12 -DRIVE SELECT B 30 -READ DATA

14 -DRIVE SELECT A 32 -SIDE 1 SELECT

16 -MOTOR ENABLE B 34 DIS K CHANGE

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AR-B1552 User’s Guide

1

234

3.2.4 Parallel Port Connector (LPT)

25

26 2

CN8 DB-25 Signal CN8 DB-25 Signal

1 1 -Strobe 2 14 -Auto Form Feed

3 2 Data 0 4 15 -Error

5 3 Data 1 6 16 -Initialize

7 4 Data 2 8 17 -Printer Select In

9 5 Data 3 10 18 Ground

11 6 Data 4 12 19 Ground

13 7 Data 5 14 20 Ground

15 8 Data 6 16 21 Ground

17 9 Data 7 18 22 Ground

19 10 Acknowledge 20 23 Ground

21 11 Busy 22 24 Ground

23 12 Paper 24 25 Ground

25 13 Printer Select 26 -- No Used

1

17

AR-B1552 User’s Guide

A

A

3.2.5 Keyboard & Mouse Connector (KM)

1 KDT
2 MDT
3 GND
4 VCC
5 KCLK
6 MCLK

KM

3

4

5

3.2.6 USB Connector (USB1)

2 10 4 6 8

1

3 5 7 9

1. USBVCC1 2. USBVCC2

3. USBD1F- 4. USBD2F-

5. USBD1F+ 6. USBD2F+

7. GND 8. GND

9. GND 10. GND

3.2.7 LED Header (LED1)

LED1

1

Front View

2

6

3.2.8 COM1

--- Used RS232 & RS485

--- RS485 Terminator Select (JP6)

1

2

3

1

2

3

4

5

COM1

1. HDLED

2. CFLED

3. P/WLED

6

7
8

9

P1 1
P3

2
3

C B

RS-232

Factory Preset

1
2

OFF

Factory Preset

1
2
3

C B

RS-485

1

2

ON

18

3.2.9 COM2

2 10 4 6 8

1

3 5 7 9

3.2.10 CRT Connector (CRT)

1

2

3

4

5

2.DSR

1.DCD

4.RTS

3.RX

6.CTS

5.TX

8.RI

7.DTR

9.GND

CRT (CRT Connector)

6

1 Red
2 Green

11

3 Blue
13 Horizontal Sync

12

14 Vertical Sync
4, 9, 11, 12 & 15 Not used

13

5 & 10 Ground

14

6, 7 & 8 AGND

15

AR-B1552 User’s Guide

10

3.2.11 NETWORK Setting

The RJ-45 header is the standard network header. The following table is the pin assignment.

--- RJ-45 Connector (LAN1)

PIN FUNCTION

1 TPTX+

2 TPTX -

3 TPRX+

4 Not Used

5 Not Used

6 TPRX -

7 Not Used

8 Not Used

18

19

AR-B1552 User’s Guide

r

3.2.12 IrDA Header (IR)

The Infra-red Header pins assignments are as follows:

IR 2 NOT USED

5 4 3 2 1

1 VCC

3 IRRX

4 GND

5 IRTX

3.2.13 Touch Screen

--- TS1

1 2 3

1 2 3

1.RXD1F

2.TXD1

3.CGND1

1.RXD2F

2.TXD2F

3.CGND2

--- TS2

T. S. 1

T. S. 2

3.2.14 Reset Button (RST)

SW

1

2

SW PUSHBUTTON

3.2.15 PC104 CONNECTOR

(1) 64 Pin PC/104 Connector Bus A & B (PC2)

(2) 40 Pin PC/104 Connector Bus A & B (PC1)

2

1

1

2

64-Pin PC/104 Connecto

40 Pin PC/104 Connector

64

63

39

40

20

3.2.16 AUDIO HEADER

AR-B1552 User’s Guide

PIN

1 CDINL 14 NC

2 LININL 15 GNDAUD

3 CDINR 16 GND

4 LININR 17 NC

5 VCC 18 NC

6 NC 19 NC

7 LINOUTL 20 NC

8 MICIN 21 NC

9 LINOUTR 22 NC

10 PCBEEP 23 NC

11 GNDAUD 24 NC

12 GND 25 GNDAUD

13 NC 26 GND

FUNCTION PIN FUNCTION

3.2.17 TV-OUT CONNECTOR (J3)

Composite Video and S-video

1 2 3 4 5 6

PIN ASSIGNMENT

1 LUMINANCE

2 CHROMINANCE

3 COMPOSITE

4 GND

5 GND

6 GND

21

AR-B1552 User’s Guide

3.2.18 POWER CONNECTOR (PWR4 & PWR8)

PWR4

4 3 2 1

PWR8

8 7 6 5 4 3 2 1

1 +12V

2 GND

3 GND

4 +5V

1. GND

2. VCC

3. VCC

4. GND

5. GND

6. +12V

7. –12V

8. –5V

3.2.19 BATTERY SELECT (J1 & JP1)

Internal BAT: JP1 2-3 ON (FACTORY PRESET)
External BAT: JP1 1-2 ON

JP1

J1

3

1.EXBAT

2.VCC

3.INTVBAT

1.EXBAT

2.GND

3.2.20 DOC SOCKET (U22)

DOC:32 Pin Disk-on chip socket

3.2.21 DOC ADDRESS SELECT (JP4)

JP4

1

OFF (FACTORY PRESET) C8000

JUMPER ADDRESS

2

ON C0000

.

22

AR-B1552 User’s Guide

3.3 WATCHDOG TIMER

This section describes how to use the Watchdog Timer disabled, enabled, and trigger. The AR-B1552 is equipped
with a programmable time-out period watchdog timer that occupies I/O post 214H. User can use the program to
enable the watchdog timer. Once you enable the watchdog timer, the program should trigger it every time before it
times out. And because of the system hang up, your program fails to trigger and disable the timer before it times
out. It will generate a reset signal to reset the system. The time-out period can be programmed to be 0 to 63
seconds.

Enable(D7)

Time Base

Time Factor

(D0-D5)

Write and

Trigger

Watchdog

Register

Counter and

Compartor

RESET

Watchdog Block Diagram

3.3.1 Watchdog Timer Setting

The watchdog timer is a circuit that maybe be used from your program software to detect crashes or hang-ups. The
Watchdog timer is automatically disabled after reset. Once you enabled the watchdog timer, your program should

trigger the watchdog timer every time before it times out. After you trigger the watchdog timer, it will be set to zero
and start to count again. If your program fails to trigger the watchdog timer before time out, it will generate a reset
pulse to reset the system or trigger the IRQ 9 signal in order to tell your system that the watchdog time is out.

Please refer to the following table in order to properly program Watchdog function

D7 D6 D5 D4 D3 D2 D1 D0

1 Enable Reset

0 Disable IRQ 9

Users could test watchdog function under ‘Debug’ program as follow:

C:>debug

-o 214 C8H
Generally, watchdog function would
reset system after 8 seconds

-o 214 0H

Disable watchdog function

C:>debug

-o 214 88H
Generally, watchdog function would
generate IRQ 9 after 8 seconds

-o 214 0H

Disable watchdog function

Time period

23

AR-B1552 User’s Guide

3.3.2 Watchdog Timer Trigger

After you enable the watchdog timer, your program must write the same factor as enabling to the watchdog register

at least once every time-out period to its previous setting. You can change the time-out period by writing another
timer factor to the watchdog register at any time, and you must trigger the watchdog before the new time-out period
in next trigger.

24

AR-B1552 User’s Guide

4. INSTALLATION

This chapter describes the installation procedure. The following topics are covered:

! Overview
! Utility CD-ROM

4.1 OVERVIEW

This chapter provides information for you to set up a working system based on the AR-B1552 CPU board. Please
carefully read the details of the CPU board’s hardware descriptions before installation. Pay special attention to the
jumper settings, switch settings and cable connections.

Follow steps listed below for proper installation:

Step 1:

Step 2 :

Step 3 :

Step 4 :

Step 5:

Step 6:

Step 7:

Step 8:

Step 9:

Step 10:

Read the CPU board’s hardware description in this manual.

Set jumpers.

Make sure that the power supply connected to your AR-B1552 CPU board is turned off.

Connect all necessary cables. Make sure that the HDC; serial and parallel cables are connected to
pin 1 of the related connector (not upside down).

Connect the hard disk flat cables from the CPU board to the drives. Connect a power source to
drive.

Plug the keyboard into the keyboard connector.

Turn on the power.

Configure your system with the BIOS Setup program (section 5) then re-boot your system.

If the CPU board does not work, turn off the power and read the hardware description carefully
again.

If the CPU board still does not perform properly, return the board to your dealer for immediate
service.

4.2 UTILITY CD-ROM

The AR-B1552 provides one utility CD-ROM.

4.2.1 Driver Installation

The AR-B1552 provides LAN function drivers for the WIN95, WIN98, WIN2000, WINCE, LINUX, and NT. The
driver can auto-setup in the specified mode. The user must first decompress the compressed file.

st

The 1

The 2nd step: Execute the corresponding files to setup the system.

step: Decompress the zip files included in the diskettes to your hard disk.

25

AR-B1552 User’s Guide

The files list and descriptions are as follow:

Files Descriptions

README.TXT

GEODEW~1 <DIR>

WINCED~1 <DIR>

NT4~1 0DR <DIR>

LINUXD~1 <DIR>

WIN200~1 <DIR>

8139SW.EXE

GEODE win9x:
Includes auto-execution program that will setup/install
Geode Media drivers in Windows 9X environment.

WinCE driver:
Includes the GxM drivers needed in Win CE environment.

NT4.0 driver:
Includes the GxM drivers needed in NT4.0 environment.

Linux driver:
Includes the GxM drivers needed in Linux environment.

Win2000 driver:
Includes the GxM drivers needed in Win2000 Environment.

An auto extract file that includes:

1. Device drivers of RTL8139A for various operating systems

2. LAN Configuration EEPROM programmer

3. Diagnostic and modification program for RTL8139

26

AR-B1552 User’s Guide

5. BIOS CONSOLE

This chapter describes the AR-B1552 BIOS menu displays and explains how to perform common tasks needed to
get up and running, and presents detailed explanations of the elements found in each of the BIOS menus. The
following topics are covered:

! BIOS Setup Overview
! Standard CMOS Setup
! BIOS Features Setup
! Chipset Features Set
! PNP/PCI Configuration
! Load Default Setting
! Integrated Peripherals
! Password Setting
! IDE HDD Auto Detection
! BIOS Exit

5.1 BIOS SETUP OVERVIEW

Once you enter Award BIOS CMOS Setup Utility by holding the “Delete” button during boot-up, the Main Menu
will appear on the screen. The Main Menu allows you to select from various setup functions and two exit choices.
Use arrow keys to select among the items and press <Enter> to accept or enter the sub-menu.

ROM PCI/ISA BIOS (2A434AVF)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP

BIOS FEATURES SETUP

CHIPSET FEATURES SETUP

PNP/PCI CONFIGURATION

LOAD BIOS DEFAULTS

LOAD SETUP DEFAULTS

INTEGRATED PERIPHERALS

SUPERVISOR PASSWORD

USER PASSWORD

IDE HDD AUTO DETECTION

SAVE & EXIT SETUP

EXIT WITHOUT SAVING

Esc: Quit

F10: Save & Exit Setup

Time, Date, Hard Disk Type…

↑↓→←: Select Item

(Shift) F2: Change Color

BIOS Setup Main Menu

CAUTION: 1. AR-B1552 BIOS the factory-default setting is used to the <LOAD BIOS DEFAULTS> Acrosser

recommends using the BIOS default setting, unless you are very familiar with the setting function, or
you can contact the technical support engineer.

2. If the BIOS settings are lost, the CMOS will detect the <LOAD SETUP DEFAULTS> to boot the
operation system, this option will reduce the performance of the system. Acrosser recommends
choosing the <LOAD BIOS DEFAULTS> in the main menu. This option gives best-case values that
should optimize system performance.

3. The BIOS settings are described in detail in this section.

27

AR-B1552 User’s Guide

5.2 STANDARD CMOS SETUP

The <Standard CMOS Setup> option allows you to record some basic system hardware configuration and set the
system clock and error handling. If the CPU board is already installed in a working system, you will not need to
select this option anymore.

ROM PCI/ISA BIOS (2A434AVF)

STANDARD CMOS SETUP
AWARD SOFTWARE, INC.

Date (mm:dd:yyyy): Tue, Mar 16, 2000
Time (hh:mm:ss): 16:39:30

<type>
Drive C : 0 ( 0Mb)
Drive D: 0 ( 0Mb)

Drive A: None
Drive B: None

Video: EGA/VGA

Halt On: All, But Keyboard

Esc: Quit

F1: Help

Date & Time Setup

Highlight the <Date> field and then press the [Page Up] /[Page Down] or [+]/[-] keys to set the current date. Follow
the month, day and year format.
Highlight the <Time> field and then press the [Page Up] /[Page Down] or [+]/[-] keys to set the current date. Follow
the hour, minute and second format.
The user can bypass the date and time prompts by creating an AUTOEXEC.BAT file. For information on how to
create this file, please refer to the MS-DOS manual.

Hard Disk Setup

The BIOS supports various types for user settings, The BIOS supports <Pri Master>, <Pri Slave>, <Sec Master>
and <Sec Slave> so the user can install up to two hard disks. For the master and slave jumpers, please refer to
the hard disk’s installation descriptions and the hard disk jumper settings in section three of this manual.
You can select <AUTO> under the <TYPE> and <MODE> fields. This will enable auto detection of your IDE drives
during boot-up. This will allow you to change your hard drives (with the power off) and then power on without
having to reconfigure your hard drive type. If you use older hard disk drives, which do not support this feature,
then you must configure the hard disk drive in the standard method by choosing the HDD type, which should be
noted directly on the HDD.

Floppy Setup

The <Standard CMOS Setup> option records the types of floppy disk drives installed in the system.
To enter the configuration value for a particular drive, highlight its corresponding field and then select the drive type
using the left-or right-arrow key.

Video

This option selects the type of adapter used for the primary system monitor that must match your video display
card and monitor. Although secondary monitors are supported, you do not have to select the type in Setup.

CYLS. HEADS PRECOMP LANDZONE SECTORS MODE

0 0 0 0 0 AUTO

0 0 0 0 0 AUTO

Base Memory: 640K
Extended Memory: 29184K
Other Memory: 384K

Total Memory: 30208K

↑↓→←: Select Item

(Shift) F2: Change Color

PU/PD/+/-: Modify

Standard CMOS Setup

28

AR-B1552 User’s Guide

r

You have two ways to boot up the system:

1. When VGA as primary and monochrome as secondary, the selection of the video type is “ VGA Mode”.

2 . When monochrome as primary and VGA as secondary, the selection of the video type is “Monochrome Mode”.

EGA/VGA Enhanced Graphics Adapter/Video Graphics Array. For EGA, VGA, SEGA, or PGA monito

adapters
CGA 40 Color Graphics Adapter, power up in 40 column mode
CGA 80 Color Graphics Adapter, power up in 80 column mode

MONO Monochrome adapter, includes high resolution monochrome adapters

Halt On

This option determines whether the computer will stop if an error is detected during power up.

No errors The system boot will not be stopped for any error that may be detected.

All errors Whenever the BIOS detect a non-fatal error the system will be stopped and you will be prompted.

All, But Keyboard The system boot will not stop for a keyboard error but it will stop for all other errors.

All, But Diskette The system boot will not stop for a disk error but it will stop for all other errors.

All, But Disk/Key The system boot will not stop for a keyboard or disk error but it will stop for all other errors.

5.3 BIOS FEATURES SETUP

The <BIOS FEATURES SETUP> option consists of configuration entries that allow you to improve your system
performance, or let you set up some system features according to your preference. Some entries here are
required by the CPU board’s design to remain in their default settings for optimal performance.

It is suggested that you leave the settings on the factory default unless you are well versed in BIOS features.

ROM PCI/ISA BIOS (2A434AVF)

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

CPU Internal Cache

Quick Power On Self Test
Boot Sequence

Boot Up NumLock Status
Boot Up System Speed
Gate A20 Option
Memory Parity Check
Typematic Rate Setting
Typematic Rate (Chars/Sec)
Typematic Delay (Msec)
Security Option
PCI/VGA Palette Snoop

: Enabled

: Enabled
: C, CDROM,A

: On
: High
: Fast
: Disabled
: Enabled
: 30
: 250
: Setup
: Disabled

Video BIOS Shadow

Cyrix 6x86/MII CPUID

Esc: Quit
F1: Help
F5: Old Values
F6: Load BIOS Defaults
F7: Load Setup Defaults

BIOS Features Setup

: Enabled

: Enabled

↑↓→←: Select Item
PU/PD/+/-: Modify
(Shift) F2: Change Color

29

AR-B1552 User’s Guide

r

CPU Internal Cache/External Cache

The two functions speed up memory access. However, it depends on CPU/chipset design. If your CPU is without
Internal cache then this item <CPU Internal Cache> will not be show. The AR-B 9625’s GXM Cyrix CPU has an
internal cache and will automatically be set to <enabled>.

Quick Power On Self Test

This option speeds up Power On Self Test (POST) after you power on the computer. If it is set to Enable, BIOS
will shorten or skip some items’ checks during POST.

Boot Sequence

The option determines which drive computer searches first for the disk operating system.

Boot Up NumLock Status

This item is used to activate the NumLock function upon system boot. If the setting is on, after a boot, the
NumLock light is lit, and the user can use the number keys.

Boot Up System Speed

This item is used to choose the boot-up speed of system. The choices provided are <LOW> and <HIGH>.

Gate A20 Option

This item is chosen as <Normal>, the A20 signal is controlled by keyboard controller or chipset hardware. The
selection is “Fast” means the A20 signal is controlled by Port 92 or a chipset specific method.

Memory Parity Check

An approach that generates and checks parity on each memory transfer and provides an interrupt if an error is
found. This item is to <Disabled> or <Enabled>

this

function.

Typematic Rate Setting

To enable typematic rate and typematic delay programming. If you disable the typematic rate and typematic delay
programming, the system BIOS will use the default value of the keyboard controls these 2 items and the default.

Typematic Rate (Chars/Sec)

Typematic Rate sets the rate at which characters on the screen repeat when a key is pressed and held down. The
settings are 6, 8, 10, 12, 15, 20, 24, or 30 characters per second.

Typematic Delay (Msec)

The number selected indicates the time period between two identical characters appearing on screen.

Security Option

The option allows the user to limit access to the System and Setup, or just to Setup.

System The system will not boot and accesses to Setup will de denied if the correct password is not

entered at the prompt.

Setup The system will boot, but access to Setup will be denied if the correct password is not entered at

the prompt.

Note:

To disable security, select PASSWORD SETTING at Main Menu and then you will be asked to ente
password. Do not type anything and just press <Enter>, it will disable security. Once the security
is disabled, the system will boot and you can enter Setup freely.

PCI/VGA Palette Snoop

This option must be set to Enabled if any ISA adapter card installed in the computer requires VGA palette snooping.

30

AR-B1552 User’s Guide

Video BIOS Shadow

ROM Shadow copies Video BIOS code from slower ROM to faster RAM. Video BIOS can then execute from RAM.
This makes your system faster.

Cyrix 6x86/MII CPUID

The option is to determine whether or not to use the function of controlling or accessing the Cyrix 6x86/MII CPUID.

5.4 CHIPSET FEATURES SETUP

This option controls the configuration of the board’s chipset. Control keys for this screen are the same as for the
previous screen. This selection is automatic.

ROM PCI/ISA BIOS (2A434AVF)

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

SDRAM CAS latency Time
SDRAM Clock Ratio Div By

16-bit I/O Recovery (CLK)
8-bit I/O Recovery (CLK)

: 3 T
: 4

: 5
: 5

Esc: Quit
F1: Help
F5: Old Values
F6: Load BIOS Defaults
F7: Load Setup Defaults

↑↓→←: Select Item
PU/PD/+/-: Modify
(Shift) F2: Color

Chipset Features Setup

SDRAM CAS latency Time

This item is to setup the SDRAM CAS# signal latency time, the smaller value you set it, the higher efficiency you
will get.

SDRAM Clock Ratio Div By

This item is to determine the SDRAM Clock Ratio.

16-Bit I/O Cycle Recovery Time
8-Bit I/O Cycle Recovery Time

These options specify the length of the delay (in BUSCLK) inserted between consecutive 8-bit/16-bit I/O operations.

31

AR-B1552 User’s Guide

5.5 PNP/PCI CONFIGURATION

ROM PCI/ISA BIOS (2A434AVF)

PNP/PCI CONFIGURATION

AWARD SOFTWARE, INC.

PNP OS Installed
Resources Controlled By
Reset Configuration Rate

PNP/PCI CONFIGURATION

: NO
: Auto
: Disabled

PCI IRQ Actived By

Esc: Quit
F1: Help
F5: Old Values
F6: Load BIOS Defaults
F7: Load Setup Defaults

PNP OS Installed

This item is to choose whether or not installing the PNP (Plug & Play) operation system.

Resources Controlled By

The available choices are <Auto>&<Manual>. To choose <Auto>the resources will be under the control of

system automatically. If <Manual> is chosen, the following items will be listed.

<IRQ (3,4,5,7,9,10,11,12,14,15)> Setting these items one by one will clear up the conflict between NON-PNP

ISA extension cards and PNP system.

<DMA(0,1,3,5,6,7)> These items are used for the PNP ISA(PCI) cards or NON-PNP old ISA cards which use

DMA channel to enable them work normally.

Reset Configuration Data

This item is used to <enable> the function of Reset Configuration Data or not.

PCI IRQ Actived By

This item is to determine the active mode.

: Level

↑↓→←: Select Item
PU/PD/+/-: Modify
(Shift) F2: Color

5.6 LOAD DEFAULT SETTING

This section permits the user to select a group of settings for all BIOS Setup options. Not only can you use these
items to quickly set system configuration parameters, you can choose a group of settings that have a better chance
of working when the system is having configuration related problems.

5.6.1 Load BIOS Defaults

User can load the optimal default settings for the BIOS. The <LOAD BIOS DEFAULTS> uses best-case values
that should optimize system performance. If CMOS RAM is corrupted, the optimal settings are loaded
automatically.

Load high performance settings (Y/N)?

5.6.2 Load Setup Defaults

User can load the <LOAD SETUP DEFAULTS> Setup option settings by selecting the Fail-Safe item from the
Default section of the BIOS Setup main menu.
The Fail-Safe settings provide far from optimal system performance, but are the most stable settings. Use this
option as a diagnostic aid if the system is behaving erratically.

Load failsafe settings (Y/N)?

32

AR-B1552 User’s Guide

5.7 INTEGRATED PERIPHERALS

This section is designed to configure the peripheral features.

ROM PCI/ISA BIOS (2A434AVF)

INTEGRATED PERIPHERALS

AWARD SOFTWARE, INC.

IDE HDD Block Mode
Primary IDE Channel

Master Drive PIO Mode
Slave Drive PIO Mode

IDE Primary Master UDMA
IDE Primary Slave UDMA

KBC input clock

Onboard Serial Port 1
Onboard Serial Port 2
Onboard IR Controller

Onboard Parallel Port
Parallel Port Mode

: Enabled
: Enabled
: Auto
: Auto

: Disabled
: Disabled

: 8 MHz

: 3F8/IRQ4
: 2F8/IRQ3
: Disabled

378/IRQ7
SPP

Integrated Peripherals

IDE HDD Block Mode

This option allows your hard disk controller to use the fast block mode to transfer data to and from your hard disk
drive (HDD).

Enabled IDE controller uses block mode.

Disabled IDE controller uses standard mode.

IDE PIO

IDE hard drive controllers can support up to two separate hard drives. These drives have a master/slave
relationship, which is determined by the cabling configuration used to attach them to the controller. Your system
supports one IDE controller – a primary and a secondary – so you have the ability to install up to four separate
hard disks.
PIO means Programmed Input/Output. Rather than have the BIOS issue a series of commands to affect a transfer
to or from the disk drive, PIO allows the BIOS to tell the controller what it wants and then let the controller and the
CPU perform the complete task by them. This is simpler and more efficient (and faster). Your system supports
five modes, numbered from 0 to 4, which primarily differ in timing. When Auto is selected, the BIOS will select the
best available mode.

KBC input clock

This item it to chose the input clock of Keyboard Controller

OnBoard Serial Port 1 & 2

This options are used to select the port address of the on-board serial port A. The options are 3F8H, 2F8H, 3E8H,
2E8H, Auto and Disable. Port 1 is COM A, Port 2 is Com D and so on. Port four can be set to be IrDA (Choose
Auto) if the IrDA device has been connected.

OnBoard Parallel Port

This option is used to select the port address of the on-board parallel port. The options are 378H, 278H, 3BCH,
and Disabled.

Parallel Port Mode

This option specifies the parallel port Mode. The settings are Printer or Extended (Bi-direction).

Multiple Monitor Support

Video Memory Size

Esc: Quit
F1: Help
F5: Old Values
F6: Load BIOS Defaults
F7: Load Setup Defaults

:
: No Onboard

: 2.5M

↑↓→←: Select Item
PU/PD/+/-: Modify
(Shift) F2: Color

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AR-B1552 User’s Guide

Multiple Monitor Support

This is to determine the highest priority that the monitor supports. <PCI First> is the default setting. The other two
choices are <No Onboard> and <M/B First>.

5.8 PASSWORD SETTING

This BIOS Setup has an optional password feature. The system can be configured so that all users must enter a
password every time the system boots or when BIOS Setup is executed.

5.8.1 Setting Password

Select the appropriate password icon from the Security section of the BIOS Setup main menu. Enter the password
and press [Enter]. The screen does not display the characters entered. After the new password is entered, retype
the new password as prompted and press [Enter].

If the password confirmation is incorrect, an error message appears. If the new password is entered without error,
press [Esc] to return to the BIOS Main Menu. The password is stored in CMOS RAM after BIOS is completed.
The next time the system boots, the prompt for the password function is present and is enabled.

Enter new supervisor password:

5.8.2 Password Checking

The password check option is enabled in Advanced Setup by choosing either Always (the password prompt
appears every time the system is powered on) or Setup (the password prompt appears only when BIOS is run).

The password is stored in CMOS RAM. User can enter a password by typing with the keyboard. Enter a 1-6
character password. The password does not appear on the screen when typed. Make sure you write it down.

5.9 IDE HDD AUTO DETECTION

This option detects the parameters of an IDE hard disk drive, and automatically enters them into the Standard
CMOS Setup screen.

5.10 BIOS EXIT

This section is used to exit the BIOS main menu in two types of situation. After making your changes, you can
either save them or exit the BIOS menu and without saving the new values.

5.10.1 Save & Exit Setup

This item set in the <Standard CMOS Setup>, <BIOS Features Setup>, <Chipset Features Setup>, <Power
Management Setup>, <Integrated Peripherals> and the new password (if it has been changed) will be stored in the
CMOS. The CMOS checksum is calculated and written into the CMOS.

As you select this function, the following message will appear at the center of the screen to assist you in saving
data to CMOS and Exit the Setup.

Save current settings and exit (Y/N) ?

5.10.2 Exit Without Saving

When you select this option, the following message will appear at the center of the screen to help to Abandon all
Data and Exit Setup.

Quit without saving (Y/N) ?

Windows Installat ion Notice:

1. While AR-B1552/9459 does not have floppy disk function, the proper way to setup the Windows system is to copy
all the drivers needed to your hard disk or CD-ROM and to execute them from the related devices.

2. Please refer to BIOS setup section in this manual for booting from CD-ROM

4. If you find any difficulty in the operating systems installation, please contact our technical support for further
assistance.

Note:

If the content in Setting is inconsistent with CD-ROM. Please refer to the Setting as priority.

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