Acrosser AR-B1570 User Manual

AR-B1570

INDUSTRIAL GRADE

CPU BOARD

User’ s Guide

Edition: 1.73

Book Number: AR-B1570-05.06.30

AR-B1570 User’s Guide

Table of Contents

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

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

0.2 WELCOME TO THE AR-B1570 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

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

1.2 PACKING LIST........................................................................................................................................................................... 5

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....................................................................................................................................................................15

3.2.1 Hard Disk (IDE) Connector..................................................................................................................................................16

3.2.2 FDD Port Connector (CN3)..................................................................................................................................................17

3.2.3 Ethernet RJ-45 Connector (LAN1).......................................................................................................................................18

3.2.4 PS/2 KB/Mouse Connector (CN4 & PS1).............................................................................................................................18

3.2.5 PS-ON Header (CN9)..........................................................................................................................................................18

3.2.6 Reset Header (J7)...............................................................................................................................................................18

3.2.7 Power Connector (PWR2)...................................................................................................................................................19

3.2.8 CRT Connector (P4)............................................................................................................................................................19

3.2.9 LCD Supported Voltage Select (JP4)...................................................................................................................................19

3.2.10 LCD Panel Display Connector (LCD1)...............................................................................................................................20

3.2.11 LED Header (J8) ...............................................................................................................................................................20

3.2.12 USB Connector(USB1)......................................................................................................................................................20

3.2.13 PC104 Connector..............................................................................................................................................................21

3.2.14 Parallel Port Connector (CN2)...........................................................................................................................................22

3.2.15 IR. Header (J1)..................................................................................................................................................................22

3.2.16 Ext. Battery (CN1).............................................................................................................................................................22

3.2.17 Battery Jumper (JP2).........................................................................................................................................................22

3.2.18 COM1, COM2 (CN5, CN6)................................................................................................................................................23

3.2.19 Touch Screen Connector (J3 & J4)....................................................................................................................................24

3.2.20 D.O.C. Memory Address Select (JP1) ...............................................................................................................................24

3.2.21 ATX POWER External Bottom Connector (J6)...................................................................................................................24

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

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

4.2 UTILITY DISKETTE ...................................................................................................................................................................25

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

4.3 WATCHDOG TIMER..................................................................................................................................................................26

4.3.1 Watchdog Timer Setting......................................................................................................................................................27

4.3.2 Watchdog Timer Trigger......................................................................................................................................................27

5. BIOS CONSOLE.........................................................................................................................................................28

5.1 BIOS SETUP OVERVIEW..........................................................................................................................................................28

5.2 STANDARD CMOS SETUP.......................................................................................................................................................29

5.3 BIOS FEATURES SETUP..........................................................................................................................................................31

5.4 CHIPSET FEATURES SETUP...................................................................................................................................................33

5.5 PNP/PCI CONFIGURATION......................................................................................................................................................34

5.6 LOAD DEFAULT SETTING........................................................................................................................................................34

5.6.1 Load BIOS Defaults.............................................................................................................................................................34

5.6.2 Load Setup Defaults............................................................................................................................................................34

5.7 INTEGRATED PERIPHERALS ..................................................................................................................................................35

5.8 PASSWORD SETTING..............................................................................................................................................................36

5.8.1 Setting Password ................................................................................................................................................................36

5.8.2 Password Checking.............................................................................................................................................................36

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AR-B1570 User’s Guide

5.9 IDE HDD AUTO DETECTION....................................................................................................................................................36

5.10 BIOS EXIT ...............................................................................................................................................................................36

5.10.1 Save & Exit Setup .............................................................................................................................................................36

5.10.2 Exit Without Saving...........................................................................................................................................................36

APPENDIX A. ADDRESS MAPPING……………………………………………………………………………………… ..… .37

IOADDRESSMAP…….…………………………………………………………………………………………………………………...……...37

MeMoryMap ……………………………………………………………………………………………………………… ..…….. 38
Appendix b. INTERRUPT REQUEST (IRQ)…………………………………………………………………………………...38

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AR-B1570 User’s Guide

0.PREFACE

0.1COPYRIGHT NOTICE AND DISCLAIMER

April 2001

Acrosser Technology makes no representations or warranties with respect to the contents hereof and specifically
disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore, Acrosser
Technology reserves the right to revise this publication and to make changes from time to time in the contents
hereof without obligation of Acrosser Technology to notify any person of such revisions or changes. Changes will
be posted on the Internet (WWW.ACROSSER.COM) as soon as possible, but there is obligation on the part of
Acrosser to this fact.
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 sublicensor.
(C) Copyright Acrosser Technology Co., Ltd., 2001. All rights Reserved.
No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated
into any language or computer language, in any form or any means, electronic, mechanical, magnetic, optical,
chemical, manual or otherwise, without the prior written consent of Acrosser Technology.
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.

0.2 WELCOME TO THE AR-B1570 CPU BOARD

This guide introduces the Acrosser AR-B1570 CPU board.
The following information describes this card’s functions, features, and how to start, set up and operate your AR­B1570. General system information can also be found here.

0.3 BEFORE YOU USE THIS GUIDE

If you have not already installed this AR-B1570, refer to the Chapter 3, “Setting Up The System” in this guide.
Check the packing list, make sure the accessories are complete.
The AR-B1570 CD provides the newest information about the card. Please refer to the files of the enclosed
utility CD. It contains the modification, hardware & software information, and it has updates to product functions
that may not be mentioned here.

0.4 RETURNING YOUR BOARD FOR SERVICE

If your board requires servicing, contact the dealer 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 of 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 symptoms.

0.5 TECHNICAL SUPPORT AND USER COMMENTS

User’s comments are always welcome as they assist us in improving the usefulness of our products and the
understanding of our publications. They form a very important part of the input used for product enhancement
and revision.
We may use and distribute any of the information you supply in any way we believe appropriate without incurring
any obligation. You may, of course, continue to use the information you supply.
If you have suggestions for improving particular sections or if you find any errors, please indicate the manual title
and book number.
Please send your comments to Acrosser Technology Co., Ltd. or your local sales representative.
Internet electronic mail to: [e-mail]
Check our FAQ sheet for quick fixes to known technical problems.

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AR-B1570 User’s Guide

0.6 ORGANIZATION

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

l Chapter 1, “Overview”, provides an overview of the system features and packing list.
l Chapter 2, “System Controller” describes the major structure.
l Chapter 3, “Setting Up the System”, describes how to adjust the jumper, and the connector’s settings.
l Chapter 4, “Installation”, describes setup procedures including information on the utility diskette.
l 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-B1570 User’s Guide

1. OVERVIEW

This is a AR-B1570 Pentium Grade CPU Board with Ethernet, DOC, SSD and Compact Flash.
This chapter provides an overview of your system features and capabilities. The following topics are covered:

l Specification
l Packing List
l Features

1.1SPECIFICATION

l CPU : NS GEODE GX1 BGA.
l Chipset:Cyrix CS5530A.
l RAM Memory: Support 1xDIMM 168-Pin socket, 128M maximum.
l SSD: Support one socket for DiskOnChip.

Support up to 1MB SRAM on board.

l Watchdog: Software programmable 1~63sec.
l VGA Display: CS5530A UMA,Memory Size 1~4MB.

CRT-with HDB 15-pin connector.

LCD with 2.0 mm 44-pin Header.

l Ethernet: RTL8139C chipset, supports 10/100M baseT with RJ-45 connector built-in LED.
l Super I/O: Winbond 83977TF

2 EIDE (Ultra DMA33)– with one 2.54 mm 40-pin connector and
one 2.00 mm 44-pin connector

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/RS485 – with DB-9 connector located at the bracket.

1 RS-232C /IrDA/Touch Screen – with 2.54 mm 10-pin connector
RS-232C is selectable by jumper and use the same connector.
IrDA with 2.54mm 5-pin header.

Touch Screen with 2.0mm 3-pin JST connector.

l BIOS: Flash BIOS AWARD.
l Keyboard/Mouse: PS/2 compatible 6-pin mini-DIN connector and JST 6pin.
l USB: Built-in 2 ports USB interface with 2.54mm 10-pin headers.
l RTC: Chipset including, Support ACPI function with 10 years data retention.
l Speaker: Supports on-board buzzer.
l LED Indicators: Power LED, LAN LED at LAN Port.
l Expansion Bus: PC/104,ISA Bus.
l Power Connector: One 4-pin Wafer Connector.
l Power Req.: +5V-3.0A maximum and 12V –0.5A maximum.
l PC Board: 6 layers, EMI considered
l Dimensions: 185 mm x 122 mm (7.3”x4.8”)

1.2 PACKING LIST

Some accessories are included with the system. Before you begin installing your AR-B1570 board, take a moment
to make sure that the following items have been included inside the AR-B1570 package.

l The quick setup manual
l 1 AR-B1570 all-in-one single CPU board
l Software utility CD.
l 2HD cable (one 2.54mm, one 2.0mm).
l FD cable.
l USB, AR-B9462A (optional)
l KB/Mouse (one mini din)
l COM 2 cable (2*5pin)
l Parallel cable (2*13pin)

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AR-B1570 User’s Guide

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.

l CPU NS GEODE GX1
l Cyrix CS5530A Chipset
l 1xDIMM SDRAM
l Supports DOC Flash Disk
l 1Mbyte SRAM
l 10/100M-Base Ethernet
l Compact Flash (optional)
l AWARD BIOS
l Power Req.: +5V-3.0A maximum and 12V –0.5A maximum.
l Dimensions: 185 mm x 122 mm (7.3”x4.8”).

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AR-B1570 User’s Guide

2. SYSTEM CONTROLLER

This chapter describes the main structure of the AR-B1570 CPU board. The following topics are covered:

l Microprocessors
l DMA Controller
l Keyboard Controller
l Interrupt Controller
l Serial Port
l Parallel Port

2.1 MICROPROCESSOR

The AR-B1570 uses the NS GEODE GX1 CPU, 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 266MHz. These features are possible by the use
of advanced-process technologies and super pipelining.

2.2 DMA CONTROLLER

The equivalent of two 8237A DMA controllers are implemented on the AR-B1570 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-B1570 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-B1570 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
IRQ10:LAN adapters(based on PCI INT routing)
IRQ12:Reserved for PS/2 mouse
IRQ13:Math.Co-processor
IRQ14:Hard disk adapter
IRQ15:Hard disk adapter

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

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2.4.1 I/O Port Address Map

Hex Range

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

210-213 SSD

214 Watchdog
218-21A EMS register 1
278-27F Parallel printer port (depends on setup assignment)
290-293 SSD

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-B1570 User’s Guide

Device

I/O Port Address Map

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AR-B1570 User’s Guide

2.4.2 Real-Time Clock and Non-Volatile RAM

The AR-B1570 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-B1570 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-B1570 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

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

(5) Line Control Register (LCR)

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

Register

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AR-B1570 User’s Guide

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)

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

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AR-B1570 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:

1234567 0

X X X

-ERROR
SLCT
PE

-ACK

-BUSY

Printer Status Buffer

NOTE: X presents not used.

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AR-B1570 User’s Guide

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

er’s ACK signal. A0 means the printer has received the

be active for approximately 5

X X 1 2 3 4 5 6 7 0

STROBE

AUTO FD XT

INIT SLDC IN

IRQ ENABLE

DIR(write only)

bled allowing data driven

data must be present for

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

accept data.

Bit 6: This bit represents the current state of the print

character and is ready to accept another. Normally, this signal will

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 & Printer 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:

Bit’s Definition

NOTE: X presents not used.

Direction control bit. When logic 1, the output buffers in the parallel port are disa
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

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

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AR-B1570 User’s Guide

3. SETTING UP THE SYSTEM

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

l Overview
l System Setting

3.1 OVERVIEW

AR-B1570 is a Pentium Grade CPU Board that comes Ethernet, DOC, SSD, and Compact Flash (optional) functions.
This section provides the hardware’s jumper settings, the connectors’ locations, and the pin assignments. The #1 pin
assignments have all been designed on the right side of the board with a “block” indication on the diagram.

CN3

CN7

CN2

USB1

JP4

J4

DIMM1

PWR2

J8

26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

B H K MD F

U1

T ADV Y AFP AB

AC AEAAWURNLJGECA

U1

J7

LCD1

26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

B H K MD F

U2

T ADV Y AFP AB

P1

AC AEAAWURNLJGECA

U21

CN1

A

J2
J6

CN8

U6

BT3

JP1

U16

‑+

U19

AR-B1570V1.2

J1

P2

JP2

CN4

J9

P3

J3

CN9

CN5

LAN1

P4

A

J2

CN1

J6

PS1

SILKTOP

External System Location

3.2 SYSTEM SETTING

Jumper pins allow you to set specific system parameters. Set them by changing the pin location of jumper blocks.
(A jumper block is a small plastic-encased conductor that slips over the pins.) To change a jumper setting, remove
the jumper from its current location with your fingers or small needle-nosed pliers. Place the jumper over the two
pins designated for the desired setting. Press the jumper evenly onto the pins. Be careful not to bend the pins.

CAUTION: Do not touch any electronic components unless you are safely grounded. Wear a grounded wrist strap

or touch an exposed metal part of the system unit chassis. The static discharges from your fingers can
permanently damage electronic components.

15

AR-B1570 User’s Guide

1

2 40

39

3.2.1 Hard Disk (IDE) Connector

(1) 40-Pin Hard Disk (IDE) Connector (CN7)

A 40-pin header type connector (CN7) is provided to interface with up to two embedded hard disk drives (IDE AT
bus). This interface, through a 40-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 40-pin connector.

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

Hard Disk (IDE) Connector

16

1

2 44

43

(2) 44-Pin Hard Disk (IDE) Connector (CN8)

AR-B1570 also provides IDE interface 44-pin connector to connect with the hard disk device.

AR-B1570 User’s Guide

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 (IDE1) Connector

3.2.2 FDD Port Connector (CN3)

The AR-B1570 provides a 34-pin header type connector for supporting up to two floppy disk drives.
To enable or disable the floppy disk controller, please use the BIOS Setup program.

33

Figure 0-1 CN3: FDD Port connector

Pin Signal Pin Signal

1-33(odd)

2 DRVEN 0 20 -STEP OUTPUT PULSE
4 NOT USED 22 -WRITE DATA
6 DRVEN 1 24 -WRITE GATE

8 -INDEX 26 -TRACK 0
10 -MOTOR ENABLE 0
12 -DRIVE SELECT 1 30 -READ DATA
14 -DRIVE SELECT 0 32 -SIDE 1 SELECT
16 -MOTOR ENABLE 1

Table 0-1 FDD Pin Assignment

GROUND 18 DIRECTION

28 -WRITE PROTECT

34 DISK CHANGE

1
234

17

AR-B1570 User’s Guide

MSCLK

1

2

4

5

VCC

CN4

6 Pin Mini

-

DIN

1 KBDAT

4 VCC

5 KBCLK

2

3.2.3 Ethernet RJ-45 Connector (LAN1)

The LAN1 RJ-45&LED header is the standard network header. The following table is the pin assignment.

PIN (CN8) FUNCTION

1 TPTX+
2 TPTX ­3 TPRX+
4 Not Used
5 Not Used
6 TPRX ­7 Not Used
8 Not Used

RJ-45 Pin Assignment

18

3.2.4 PS/2 KB/Mouse Connector (CN4 & PS1)

To use the PS/2 interface, an adapter cable has to be connected to the CN4 (6-pin header type) connector. This
adapter cable is mounted on a bracket and is included in your AR-B1570 package. The connector for the PS/2
KB/mouse is a Mini-DIN 6-pin connector. Pin assignments for the PS/2 port connector are as follows:

MSDAT

KBDAT

GND

3

2 MSDAT
3 GND

KBCLK

Figure 0-2 CN4 & PS1: PS/2 KB/Mouse Connector

6

3.2.5 PS-ON Header (CN9)

1 PS-ON
2 VCC
3 5VSB

CN9

Factory Preset

3.2.6 Reset Header (J7)

The J7 is a reset header. Shorting these two pins will reset the system.

1

6 MSCLK

PS1

18

3.2.7 Power Connector (PWR2)

2 GND

PWR2

1 4 6 2 4 6 3 5 1 3 5

The PWR2 is a 4-pin power connector. It’s the standard connectors on all Acrosser boards.

1 +12

3 GND
4 +5

AR-B1570 User’s Guide

PWR2: 4-Pin Power Connector

3.2.8 CRT Connector (P4)

P4 (CRT Connector)

1 Red
2 Green

11

3 Blue
13 Horizontial
14 Vertical Sync
4, 9, & 11 Not used
5 & 10 Ground
6, 7 & 8 AGND
12 DDC DATA

15

15 DDC CLOCK

P4: CRT Connector

3.2.9 LCD Supported Voltage Select (JP4)

2

5V 3.3V

Factory Preset

Figure 0-3 JP4: LCD Supported Voltage Select

19

AR-B1570 User’s Guide

4

6

USB1

2 4 6 8 10

3.2.10 LCD Panel Display Connector (LCD1)

Attach a display panel connector to this 44-pin connector with pin assignments as shown below:

2
1

Figure 0-4 LCD1: LCD Display Connector

Pin Signal Pin Signal

1 GND 2 SHFCLK
3 GND 4 LP
5 FLM 6 GND
7 NC 8 NC

9 P0 (B0) 10 P1 (B1)
11 P2 (B2) 12 P3 (B3)
13 GND 14 P4 (B4)
15 P5 (B5) 16 NC
17 NC 18 P6 (G0)
19 P7 (G1) 20 GND
21 P8 (G2) 22 P9 (G3)
23 P10 (G4) 24 P11 (G5)
25 NC 26 NC
27 GND 28 P12 (R0)
29 P13 (R1) 30 P14 (R2)
31 P15 (R3) 32 P16 (R4)
33 P17 (R5) 34 GND
35 VCC 36 VCC
37 +12V 38 +12V
39 GND 40 GND
41 DE 42 ENABLK
43 GND 44 VEE

Table 0-2 LCD Display Pin Assignment

3.2.11 LED Header (J8)

J8

3.2.12 USB Connector(USB1)

Pin Description Pin Description

1 USB1V 2 USB2V
3 USBD1F- 4 USBD2F­5 USBD1F+ 6 USBD2F+
7 GND 8 GND
9 CASE 10 CASE

1 325

1.HLEDP+

2.HLEDP-

3.HLEDS+

1 3 5 7 9

4.HLEDS-

5.P/WLED+

6.P/WLED-

20

3.2.13 PC104 Connector

---

---

---

---

SD3

---

SD2

---

---

---

SA16

SA15

A2 A3 A4 A5

A6

A7

A8

A15

A16

A17

A24

A25

A32

---

DRQ2

--- -

DACK3

SA7

---

GND

B2 B3 B4 B5

B6

B7

B8

B15

B16

B17

B24

B25

B32

---

IRQ4

---

IRQ3

---

GND

GND

SD14

SD15

KEY

C2 C3 C4 C5 C6 C7

C9

C10

C18

C19

C20

---

IRQ14

---

+5 VDC

---

GND

D2 D3 D4 D5 D6 D7

D9

D18

D20

AR-B1570 User’s Guide

(1) 64-Pin PC/104 Connector Bus A & B (PC104)

2

1

-IOCHCK
SD7
SD6
SD5
SD4

SD1
SD0

IOCHRDY-

AEN
SA19
SA18
SA17

SA14
SA13
SA12
SA11
SA10
SA9 --­SA8 ---

SA6 --­SA5 --­SA4 --­SA3 --­SA2 --­SA1 --­SA0 ---

Figure PC104: 64-Pin PC/104 Connector Bus A & B

64-Pin PC/104 Connector

PC104

1 2

A1

A9
A10
A11
A12
A13
A14

A18
A19
A20
A21
A22
A23

A26
A27
A28
A29
A30
A31

(2) 40-Pin PC/104 Connector Bus C & D (PC104)

1
2

40 Pin PC/104 Connector

PC104

1 2

C1

SBHE

LA23
LA22
LA21
LA20
LA19
LA18

C8

LA17

-MEMR

-MEMW
SD8
SD9

SD10
SD11
SD12
SD13

Figure PC104: 40-Pin PC/104 Connector Bus C & D

C11
C12
C13
C14
C15
C16
C17

B1

--- GND

--- RSTDRV

--- +5 VDC

--- IRQ9

--- -5 VDC

--- -12 VDC

--- -ZWS

B9

--- +12

B10

--- KEY

B11

--- -SMEMW

B12

--- -SMEMR

B13

--- -IOW

B14

--- -IOR

--- DRQ3

--- -DACK1

B18

--- DRQ1

B19

--- -REFRESH

B20

--- BUSCLK

B21

--- IRQ7

B22

--- IRQ6

B23

--- IRQ5

B26

--- -DACK2

B27

--- TC

B28

--- BALE

B29

--- +5

B30

--- OSC

B31

--- GND

D1

--- GND

--- -MEMCS16

--- -IOCS16

--- IRQ10

--- IRQ11

--- IRQ12

--- IRQ15

D8

--- -DACK0

D10

--- DRQ0

D11

--- -DACK5

D12

--- DRQ5

D13

--- -DACK6

D14

--- DRQ6

D15

--- -DACK7

D16

--- DRQ7

D17

--- -MASTER

D19

--- GND

64

63

39
40

21

AR-B1570 User’s Guide

2

1

3.2.14 Parallel Port Connector (CN2)

The connector for the parallel port is a 26 pins female connector.

1

Parallel Port Connector

PIN Signal PIN Signal

1 -Strobe 14 -Auto Form Feed
2 Data 0 15 -Error
3 Data 1 16 -Initialize
4 Data 2 17 -Printer Select In
5 Data 3 18 Ground
6 Data 4 19 Ground
7 Data 5 20 Ground
8 Data 6 21 Ground

9 Data 7 22 Ground
10
11
12
13

-Acknowledge 23 Ground
Busy 24 Ground

Paper 25 Ground

Printer Select 26 Not Used

Parallel Port Pin Assignments

3.2.15 IR. Header (J1)

The Infra-red Header pins assignments are as follow:

5

JI

1 VCC
2 NOT USED
3 IRRX
4 GND
5 IRTX

3.2.16 Ext. Battery (CN1)

3.2.17 Battery Jumper (JP2)

External Battery On-Board Battery

22

CN1

JP2

1

1-2 2-3

1 EXBAT (3.6V)

1

2 GND

1 EXBAT
2 VCC
3 INTVBAT

JP2: Battery Setting

3.2.18 COM1, COM2 (CN5, CN6)

2 3 4 5 6 7 8 9 10

P3 1

3

3

A C B A C B

1

2

2

CN5 (COM1)

AR-B1570 User’s Guide

CN6 (COM2)

1

2

3

6

7

1

8

Table 0-3 RS-232 Connector Pin Assignment

(1) RS-232/RS-485 Select for COM1 (P2 & P3)

The P2&P3 jumper is used to choose between the use of the on-board RS-232 or RS-485 for the CN5 – COM1.

4

9

5

Figure 0-5 CN5 & CN6: RS-232 Connector

CN5 CN6

1 1 /DCD 8 6 /CTS
6 2 /DSR 4 7 /DTR
2 3 RXD 9 8 /RI
7 4 /RTS 5 9 VCC
3 5 TXD -- 10 VCC

Signal CN5 DB6

Signal

1

P2

2

2

RS-232

Factory Preset

Figure 3-10 P2 & P3: RS-232/RS-485 Select for COM1

(2) RS-485 Terminator Select (J2)

When there is only one line the setting should be left off, but if you are using multiple blocks on a single line
this should be set to “ON” in order to properly terminate the connection for better transmission of data

1

OFF

Factory Preset

(3) RS-485 Header (J9)

1 2 3

J9

Figure 0-6 J2: RS-485 Terminator Select

1 N485+
2 N485­3 GND

ON

RS-485

23

AR-B1570 User’s Guide

2 TXDF

1

2

2

3.2.19 Touch Screen Connector (J3 & J4)

1 RXDF

3 CGND

Figure 0-7 J3&J4: Touch Screen Connector

3.2.20 D.O.C. Memory Address Select (JP1)

This section provides the information about how to use the D.O.C. (DiskOnChip). There divided two parts:
hardware setting and software configuration.

Step 1:

Step 2:

Step 3:

Use JP1 to select the correct D.O.C. memory address.

Insert programmed DiskOnChip into sockets U19 setting as DOC.

Line up and insert the AR-B1570 card into slot of your computer.

1
2

OFF

Factory Preset

Figure 0-8 JP1: D.O.C. Memory Address Select

JP1 Address Note

OFF CE00 : 0000 Factory Preset

ON D200 : 0000

Table 0-4 D.O.C. Memory Address

1
2

ON

3.2.21 ATX POWER External Bottom Connector (J6)

24

OFF

Figure 0-9 J6: ATX POWER External Bottom Connector

Factory Preset

1

ON

AR-B1570 User’s Guide

Connect all necessary cables. Make sure that the HDC; serial and parallel cables are connected to

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

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

r for immediate

4. INSTALLATION

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

l Overview
l Utility Diskettes
l Watchdog Timer Setting

4.1 OVERVIEW

This chapter provides information for you to set up a working system based on the AR-B1570 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-B1570 CPU board is turned off.

pin 1 of the related connector (not upside down).

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.

again.

If the CPU board still does not perform properly, return the board to your deale
service.

4.2 UTILITY DISKETTE

The AR-B1570 provides CD.

4.2.1 Driver Installation

The AR-B1570 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.

The 1st step: Decompress the zip files included in the CD to your hard disk.

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

25

AR-B1570 User’s Guide

drivers in Windows 9X

The files list and descriptions are as follow:

README.TXT 391 09-22-00 11:17 README.TXT

Files

Descriptions

Files

Descriptions

Files 8139SW.EXE

Description

GEODEW~1 <DIR> 09-22-00 10:53 Geode win9x
WINCED~1 <DIR> 09-22-00 10:53 WinCE driver

1. GEODE win9x
Includes auto-execution program that will setup/install Geode Media
environment.

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

NT4~1 0DR <DIR> 09-22-00 10:53 NT4.0 driver
LINUXD~1 <DIR> 09-22-00 10:53 Linux driver
WIN200~1 <DIR> 09-22-00 10:53 Win2000 driver
README.TXT 1,611 04-23-99 11:48 README.TXT

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

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

3. 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

Disk 1

Disk 2

Disk 3

4.3 WATCHDOG TIMER

This section describes the use of Watchdog Timer, including disable, enable, and trigger. AR-B1570 is equipped
with a programmable time-out period watchdog timer that occupies I/O port 214H. Users can use simple program
to enable the watchdog timer. Once you enable the watchdog timer, the program should trigger it every time before
it times out. Watchdog Timer will generate a response (system or IRQ) due to system fails to trigger or disable
watchdog timer before preset timer, times out.

Enable(D7)

Time Base

Time Factor

(D0-D5)

Write and

Trigger

Watchdog

Register

Counter and

Compartor

RESET

Watchdog Block Diagram

26

AR-B1570 User’s Guide

4.3.1 Watchdog Timer Setting

The watchdog timer is a circuit that maybe be used from your program software to detect crash or hang up. 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, the timer will be set
to zero and start to count again. If your program fails to trigger the watchdog timer before times 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 follows:

C:>debug

l O 214 C8H

Generally, watchdog function would
reset system after 8 seconds

l O 214 0H

Disable watchdog function

C:>debug

l O 214 88H

Generally, watchdog function would
generate IRQ 9 after 8 seconds

l O 214 0H

Disable watchdog function

Time period

4.3.2 Watchdog Timer Trigger

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

at least once during every time-out period. 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 during every new time-out period in next
trigger.

C:>debug

l O 214 CFH

Generally, watchdog function would
reset system after 15 seconds

l O 214 40H

Disable watchdog function

Trigger success.

27

AR-B1570 User’s Guide

5. BIOS CONSOLE

This chapter describes the AR-B1570 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:

l BIOS Setup Overview
l Standard CMOS Setup
l BIOS Features Setup
l Chipset Features Set
l PNP/PCI Configuration
l Load Default Setting
l Integrated Peripherals
l Password Setting
l IDE HDD Auto Detection
l 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-B1570 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.

28

AR-B1570 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> CYLS. HEADS PRECOMP LANDZONE SECTORS MODE
Drive C : 0 ( 0Mb) 0 0 0 0 0 AUTO
Drive D: 0 ( 0Mb) 0 0 0 0 0 AUTO

Drive A: None
Drive B: None

Video: EGA/VGA
Halt On: All, But Keyboard

Esc: Quit
F1: Help

????: Select Item
(Shift) F2: Change Color

Standard CMOS Setup

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.

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

Total Memory: 30208K

PU/PD/+/-: Modify

29

AR-B1570 User’s Guide

e as primary and VGA as secondary, the selection of the video type is “Monochrome

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

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 monochrom

.

Mode”.

EGA/VGA

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 detects a non-fatal error the system will be stopped and you will be

prompted.

All, But

Keyboard

All, But

Diskette

All, But

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

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

The system boot will not stop for a keyboard or disk error, it will stop for all other errors.

Disk/Key

30

AR-B1570 User’s Guide

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

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-B1570’s GX1 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 Port 92 or a chipset specific method controls.

: Enabled

: Enabled

????: Select Item
PU/PD/+/-: Modify
(Shift) F2: Change Color

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AR-B1570 User’s Guide

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

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

To disable security, select PASSWORD SETTING at Main Menu and then you will be asked to enter

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 to control 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

entered at the prompt.

Setup The system will b

the prompt.

Note:

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.

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.

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AR-B1570 User’s Guide

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.

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AR-B1570 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

: NO
: Auto
: Disabled

PCI IRQ Actived By

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

PNP/PCI CONFIGURATION

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)?

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AR-B1570 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

Multiple Monitor Support

Video Memory Size

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

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 effect a
transferring 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

These 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).

:
: No Onboard

: 2.5M

????: Select Item
PU/PD/+/-: Modify
(Shift) F2: Color

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AR-B1570 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) ?

36

APPENDIX A. ADDRESS MAPPING

IO Address Map

I/O MAP ASSIGNMENT

0x03B0-0x03BB VgaSave
0x03C0-0x03DF VgaSave
0x01CE-0x01CF VgaSave
0x02E8-0x02EF VgaSave
0x0022-0x003F PCI bus
0x0044-0x0047 PCI bus
0x004C-0x006F PCI bus
0x0072-0x007F PCI bus
0x0090-0x0091 PCI bus
0x0093-0x009F PCI bus
0x00A2-0x00BF PCI bus
0x00E0-0x00EF PCI bus
0x0100-0x0CF7 PCI bus
0x0D00-0xFFFF PCI bus
0xE000-0xE0FF Realtek RTL8139(A) PCI Fast Ethernet Adapter
0x0A79-0x0A79 ISAPNP Read Data Port
0x0279-0x0279 ISAPNP Read Data Port
0x0274-0x0277 ISAPNP Read Data Port
0xF000-0xF00F Standard Dual Channel PCI IDE Controller
0x01F0-0x01F7 Primary IDE Channel
0x03F6-0x03F6 Primary IDE Channel
0x0170-0x0177 Secondary IDE Channel
0x0376-0x0376 Secondary IDE Channel
0x0020-0x0021 Programmable interrupt controller
0x00A0-0x00A1 Programmable interrupt controller
0x0040-0x0043 System timer
0x0000-0x000F Direct memory access controller
0x0081-0x0083 Direct memory access controller
0x0087-0x0087 Direct memory access controller
0x0089-0x008B Direct memory access controller
0x008F-0x0091 Direct memory access controller
0x00C0-0x00DF Direct memory access controller
0x0060-0x0060 PC/AT Enhanced PS/2 Keyboard (101/102-Key)
0x0064-0x0064 PC/AT Enhanced PS/2 Keyboard (101/102-Key)
0x0378-0x037F Printer Port (LPT1)
0x03F8-0x03FF Communications Port (COM1)
0x03F8-0x03FF Communications Port (COM2)
0x03F2-0x03F5 Standard floppy disk controller
0x03F7-0x03F7 Standard floppy disk controller
0x0061-0x0061 System speaker
0x0070-0x0071 System CMOS/real time clock
0x00F0-0x00FF Numeric data processor

AR-B1570 User’s Guide

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AR-B1570 User’s Guide

Memory Map:

MEMORY MAP ASSIGNMENT

0xA0000-0xBFFFF VgaSave
0xA0000-0xBFFFF PCI bus
0xC8000-0xDFFFF PCI bus
0x7D80000-0xFFFEFFFF PCI bus
0xD0000000-0xD00000FF Realtek RTL8139(A) PCI Fast Ethernet Adapter
0x40012000-0x400120FF Other PCI Bridge Device
0x40800000-0x40FFFFFF Video Controller (VGA Compatible)
0x0000-0x9FFFF System board
0x40010000-0x40010FFF System board
0x40008000-0x4000FFFF System board
0x40018000-0x407FFFFF System board
0x41000000-0x41017FFF System board
0xFFFC0000-0xFFFFFFFF System board
0xFEE00000-0xFEE0FFFF System board
0x100000-0x7D7FFFF System board
0xE0000-0xEFFFF Motherboard resources
0xF0000-0xF3FFF Motherboard resources
0xF4000-0xF7FFF Motherboard resources
0xF8000-0xFBFFF Motherboard resources
0xFC000-0xFFFFF Motherboard resources

APPENDIX B. INTERRUPT REQUEST (IRQ)

SETTING HARDWARE USING THE SETTING

01 PC/AT Enhanced PS/2 Keyboard (101/102-Key)
03
04
06
08
11
12
13
14

Notice:

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

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

Communications Port (COM2)
Communications Port (COM1)
Standard floppy disk controller
System CMOS/real time clock
Realtek RTL8139(A) PCI Fast Ethernet Adapter
PS/2 Compatible Mouse
Numeric data processor
Primary IDE Channel

38