Acrosser AR-B1670 User Manual

AR-B1670

Half Size Celeron/Pentium III

CPU BOARD with LAN, VGA, and LCD

User’ s Guide

Edition: 1.72

Book Number: AR-B1670-06.0616

AR-B1670 User’s Guide

Table of Contents

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

0.1 COPYRIGHT NOTICE AND DISCLAIMER.........................................................................................................................0-3

0.2 WELCOME TO THE AR-B1670 CPU BOARD....................................................................................................................0-3

0.3 BEFORE YOU USE THIS GUIDE......................................................................................................................................0-3

0.4 RETURNING YOUR BOARD FOR SERVICE .................................................................................................................... 0-3

0.5 TECHNICAL SUPPORT AND USER COMMENTS............................................................................................................ 0-3

0.6 ORGANIZATION................................................................................................................................................................ 0-4

0.7 STATIC ELECTRICITY PRECAUTIONS............................................................................................................................ 0-4

1. OVERVIEW.........................................................................................................................................................0-1

1.1 INTRODUCTION................................................................................................................................................................ 0-1

1.2 PACKING LIST .................................................................................................................................................................. 0-1

1.3 FEATURES........................................................................................................................................................................ 0-2

BIOS ..............................................................................................................................................................................0-2

2. SYSTEM CONTROLLER....................................................................................................................................1-1

2.1 DMA CONTROLLER.......................................................................................................................................................... 1-1

2.2 KEYBOARD CONTROLLER..............................................................................................................................................1-1

2.3 INTERRUPT CONTROLLER ............................................................................................................................................. 1-2

2.3.1 I/O Port Address Map.................................................................................................................................................1-3

2.3.2 PCI Bus Assignments (Bus1) ..................................................................................................................................... 1-3

2.3.3 Real-Time Clock and Non-Volatile RAM.....................................................................................................................1-5

2.3.4 Timer …………………………………………………………………………………………………………………………..1-5

2.4 SERIAL PORTS................................................................................................................................................................. 1-6

2.5 PARALLEL PORT.............................................................................................................................................................. 1-8

3. SETTING UP THE SYSTEM...............................................................................................................................2-1

3.1 OVERVIEW........................................................................................................................................................................ 2-1

3.2 SYSTEM SETTINGS.......................................................................................................................................................... 2-2

3.2.1 Hard Disk (IDE) Connector (CN3)............................................................................................................................... 2-2

3.2.2 PC/104 Connector...................................................................................................................................................... 2-3

3.2.3 Keyboard and PS2 Mouse Connector......................................................................................................................... 2-5

3.2.4 FDD Port Connector (CN2)......................................................................................................................................... 2-5

3.2.5 Parallel Port Connector (CN1).................................................................................................................................... 2-6

3.2.6 Serial Port.................................................................................................................................................................. 2-7

3.2.7 CN6: Ethernet RJ-45 Header...................................................................................................................................... 2-9

3.2.8 USB Connector (J4)................................................................................................................................................... 2-9

3.2.9 External Speaker Header (J5).................................................................................................................................. 2-10

3.2.10 Reset Header (J8).................................................................................................................................................... 2-10

3.2.11 LED Header ............................................................................................................................................................. 2-10

3.2.12 Power Connector (CN4)........................................................................................................................................... 2-10

3.2.13 CPU Setting............................................................................................................................................................. 2-11

3.2.14 External Battery Connector....................................................................................................................................... 2-12

3.2.15 DRAM Configuration ................................................................................................................................................ 2-12

4. CRT/LCD FLAT PANEL DISPLAY.....................................................................................................................3-1

4.1 CRT CONNECTOR (DB1).................................................................................................................................................. 3-1

4.2 LCD FLAT PANEL DISPLAYS ........................................................................................................................................... 3-1

4.2.1 Inverter Board ............................................................................................................................................................ 3-2

4.2.2 LCD Connector .......................................................................................................................................................... 3-2

5. INSTALLATION..................................................................................................................................................4-1

5.1 OVERVIEW........................................................................................................................................................................ 4-1

5.2 UTILITY DISKETTE – FOR AR-B1670...............................................................................................................................4-1

5.2.1 WIN 3.1 Driver............................................................................................................................................................ 4-2

5.2.2 WIN 95 Driver............................................................................................................................................................. 4-2

5.2.3 WIN 98 Driver............................................................................................................................................................. 4-3

5.2.4 WINNT4.0 Driver........................................................................................................................................................4-3

5.2.5 LAN DRIVER UTILITES............................................................................................................................................. 4-3

5.3 WATCHDOG TIMER.......................................................................................................................................................... 4-4

5.4 EXECUTION OF THE WATCHDOG .................................................................................................................................. 4-4

6. BIOS CONSOLE.................................................................................................................................................5-5

6.1 BIOS SETUP OVERVIEW.................................................................................................................................................. 5-5

6.2 STANDARD CMOS SETUP............................................................................................................................................... 5-6

6.3 ADVANCED CMOS SETUP...............................................................................................................................................5-7

6.4 ADVANCED CHIPSET SETUP........................................................................................................................................ 5-10

6.5 POWER MANAGEMENT................................................................................................................................................. 5-11

6.6 PCI/PLUG AND PLAY........................................................................................................................................................... 5-12

6.7 PERIPHERAL SETUP...................................................................................................................................................... 5-13

6.8 AUTO-DETECT HARD DISKS......................................................................................................................................... 5-14

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AR-B1670 User’s Guide

6.9 PASSWORD SETTING....................................................................................................................................................5-14

6.10 SETTING THE PASSWORD........................................................................................................................................5-14

6.11 PASSWORD CHECKING............................................................................................................................................. 5-14

6.12 LOAD DEFAULT SETTING..........................................................................................................................................5-14

6.12.1 Auto Configuration with Optimal Setting ................................................................................................................... 5-14

6.12.2 Auto Configuration with Fail Safe Setting.................................................................................................................. 5-14

6.13 BIOS EXIT ................................................................................................................................................................... 5-15

6.13.1 Save Settings and Exit............................................................................................................................................. 5-15

6.13.2 Exit Without Saving.................................................................................................................................................. 5-15

6.14 BIOS UPDATE............................................................................................................................................................. 5-15

7. SPECIFICATIONS ..............................................................................................................................................6-1

8. PLACEMENT & DIMENSIONS...........................................................................................................................7-2

8.1 PLACEMENT..................................................................................................................................................................... 7-2

9. DIMENSIONS......................................................................................................................................................8-1

10. PROGRAMMING RS-485 & INDEX....................................................................................................................9-2

10.1 PROGRAMMING RS-485 .............................................................................................................................................. 9-2

11. CONNECTORS AND JUMPERS INDEX ............................................................................................................................... 9-4

12. APPENDIX A. ADDRESS MAPPING………………...………………………………………………………………… … .9-5

MeMory Map………………………….………………………………………………………………………………………..……..9-5

13. APPENDIX B. INTERRUPT REQUEST (IRQ)… .………………………………………………………………….……...9-5

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AR-B1670 User’s Guide

PREFACE

0.1 COPYRIGHT NOTICE AND DISCLAIMER

This document is copyrighted, 2002, by Acrosser Technology Co., Ltd. All rights are reserved. No part of this
manual may be 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 the prior written permission of original manufacturer.
Acrosser Technology assumes no responsibility or warranty with respect to the content in this manual and
specifically disclaims any implied warranty 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) as soon as possible.
Possession, use, or copy 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 owners.

0.2 WELCOME TO THE AR-B1670 CPU BOARD

This guide introduces the Acrosser AR-B1670 CPU board.
The information provided in this manual describes about the card functions and features. It also helps you to start,
set up and operate your AR-B1670. 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-B1670.
Check the packing list before you install and make sure the accessories are completely included.
The AR-B1670 CD provides the newest information regarding the CPU card. Please refer to the files of the
enclosed utility CD. It contains the modification, hardware & software information. And it also has updated the
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. 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 input used for product enhancement and
revision. In any case, we believe that the information that you provide in anyway appropriate for us to use and
distribute it without incurring any obligation. You may, of course, continue to use the information you provide.
If you have any suggestions for improving particular sections of this publication 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]

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AR-B1670 User’s Guide

0.6 ORGANIZATION

This information for users 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 jumpers and the connector settings.
l Chapter 4,“CRT/LCD Flat Panel Display”, describes the configuration and installation procedure for using

LCD and CRT displays.

l Chapter 5, “Installation”, describes setup procedures and information on the utility diskette.
l Chapter 6, “BIOS Console”, provides the BIOS settings options.
l Chapter 7, Specifications
l Chapter 8, Placement & Dimensions
l Chapter 9, Programming RS-485 & Index

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 may result in expensive repairs. The
following measures should generally be sufficient to protect your equipment from static discharge:

1. Touch a grounded metal object to discharge the static electricity in your body (or ideally, wear a
grounded wrist strap).

2. When unpacking and handling the board or other system components, place all materials on an antic
static surface.

3. Be careful not to touch the components on the board, especially the “golden finger” connectors on the
bottom of every board.

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AR-B1670 User’s Guide

0. OVERVIEW

This chapter provides an overview of your system’s features and capabilities. The topics are covered as follow:

l Introduction
l Packing List
l Features

0.1 INTRODUCTION

The AR-B1670 makes 550MHz, industrial computing a reality. Developed for small size, high-speed system, this
half-size PCI card is excellent for embedded applications due to its stand-alone operation, especially because the
AR-B1670 provides an on-board LCD controller.

Great speeds are attained through the PCI-driven IDE controllers. By providing a PCI interface to these one
controllers, the AR-B1670 offers an exciting option for engineers involved in high performance projects. Also, the
BIOS is available for the interface with peripherals quickly and easily. The AR-B1670 comes with 2MB V-RAM
onboard, one RS-232C and one RS-232C/RS-485 serial port, and one-168PIN DIMM connectors, which can
support up to 256MB of SDRAM.

The AR-B1670 is perfect for medical and telecommunications applications, factory floor networks. It uses as a
MMI for high-speed processes, or as a controller for graphics intensive systems.

0.2 PACKING LIST

These accessories are included with the system. Before you begin installing your AR-B1670 board, please make
sure that the following items have been included inside the AR-B1670 package.

l The quick setup manual
l 1 AR-B1670 CPU board
l 1 Hard disk drive adapter cable
l 1 Floppy disk drive adapter cable
l 1 Parallel port adapter cable mounted on one bracket.
l 1 RS-232 & PS/2 Mouse interface cable mounted on one bracket.
l 1 Software utility CD

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AR-B1670 User’s Guide

0.3 FEATURES

The AR-B1670’s features are summarized as follow:

Form Factor

l Half size PCI slot card (122 mm by 185 mm)

Processor

l 370-contact processor pin grid array PGA370S socket
l Support for the Intel ® Celeron™ processor on the 66-MHz host bus
l PIII™ and Cyrix III processor on the 100-MHz host bus

Chipset Intel ® 82440BX AGPset, consisting of:

l Intel ® 82443BX PCI/AGP controller (PAC)
l Intel ® 82371EB PCI/ISA IDE Xcelerator (PIIX4E)

Memory

l One 168-contact DIMM sockets
l Support for up to 256 MB of 66-MHz and 100MHz, synchronous DRAM (SDRAM)

I/O Control

l SMSC FDC37C672 I/O controller

Peripheral Interfaces

l One IDE interface
l One floppy interface
l Two serial ports
l One touch screen serial port
l One USB ports
l One parallel port
l PS/2 keyboard
l PS/2 mouse

LAN Subsystem

l Real tech 8139C 10/100 Mbps PCI LAN controller
l RJ-45 LAN connector

Graphics Subsystem

l Integrated Chips 69000 HiQVideo™ Accelerator with Integrated 2MB video memory
l Support either CRT or flap panel display
l High-Performance Flat Panel Display resolutions and color depth at 3.3V

• 640x480 x 24bpp

• 800x600 x 24bpp

• 1024x768 x 16bpp

• 1280x1024 x 8bpp

BIOS

l AMI BIOS stored in 39SF020 2 Mb flash memory

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AR-B1670 User’s Guide

1. SYSTEM CONTROLLER

This chapter describes the major structure of the AR-B1670 CPU boards. The topics are covered as follow:

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

1.1 DMA CONTROLLER

The equivalent of two 8237A DMA controllers are implemented on the AR-B9625 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

Table 1-1 DMA Channel Controller

1.2 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 output buffer of the keyboard controller. Each byte of data is sent to the keyboard
controller in 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.

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AR-B1670 User’s Guide

IRQ 2

timer interrupt from timer 8254

1.3 INTERRUPT CONTROLLER

The equivalent of two 8259 Programmable Interrupt Controllers (PIC) are included on the AR-B9625 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 interruption levels:

InInterrupt Level

Description

NMI
CTRL1

IRQ 0
IRQ 1

IRQ 3
IRQ 4
IRQ 5
IRQ 6
IRQ 7

Parity check

CTRL2

System
Keyboard output buffer full
Rerouting to IRQ8 to IRQ15

: Real time clock

IRQ8

: Serial port 4

IRQ9

: LAN adapter

IRQ10

: Serial port 3

IRQ11

: Reserved for PS/2 mouse

IRQ12

: Math. coprocessor

IRQ13

: Hard disk adapter

IRQ14

: Reserved for Serial port 5

IRQ15

Serial port 2
Serial port 1
Parallel port 2
Floppy disk adapter
Parallel port 1

Figure 1-1 Interrupt Controller

1-2

1.3.1 I/O Port Address Map

Hex Range

000-01F DMA controller 1
020-021 Interrupt controller 1
022-023 AR-B1670 :Intel 440BX Chipset Address
040-04F Timer 1
050-05F Timer 2
060-06F 8042 keyboard/controller
070-071 Real-time clock (RTC), non-maskable interrupt (NMI)

076-077 Watchdog
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 Fixed disk 1

1F0-1F8 Fixed disk 0

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

278-27F Parallel printer port 3 (LPT 3)

2E8-2EF Serial port 4 (COM 4)

2F8-2FF Serial port 2 (COM 2)

300-31F Prototype card/Streaming Type Adapter
378-37F Parallel printer port 2 (LPT 2)

380-38F SDLC, bisynchronous
3A0-3AF Bisynchronous
3B0-3BF Monochrome display and printer port 1 (LPT 1)
3C0-3CF EGA/VGA adapter
3D0-3DF Color/Graphics monitor adapter
3E8-3EF Serial port 3 (COM 3)

3F0-3F7 Diskette controller
3F8-3FF Serial port 1 (COM 1)

Table 1-2 I/O Port Address Map

AR-B1670 User’s Guide

Device

1.3.2 PCI Bus Assignments (Bus1)

Pin Signal Name Pin Signal Name

A1 -TRST B1 -12V
A2 +12V B2 TCK
A3 TMS B3 GND
A4 TDI B4 TD0
A5 +5V B5 +5V
A6 -INTA B6 +5V
A7 -OMTC B7 -INTB
A8 +5V B8 -INTD

A9 NC B9 -PRST 1
A10 +5V B10 NC
A11 NC B11 -PRST 2
A12 GND B12 GND
A13 GND B13 GND
A14 NC B14 NC
A15 -RST B15 GND
A16 +5V B16 CLK
A17 -GNT B17 GND

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AR-B1670 User’s Guide

Table 1-3 PCI Bus Assignments

Table 1-4 PCI Bus Assignments

Pin Signal Name Pin Signal Name

A18 GND B18 -REQ
A19 NC B19 +5V
A20 AD30 B20 AD31
A21 +3.3V B21 AD29
A22 AD28 B22 GND
A23 AD26 B23 AD27
A24 GND B24 AD25
A25 AD24 B25 +3.3V
A26 IDSEL B26 C/BE3
A27 +3.3V B27 AD23
A28 AD22 B28 GND
A29 AD20 B29 AD21
A30 GND B30 AD19
A31 AD18 B31 +3.3V
A32 AD16 B32 AD17
A33 +3.3V B33 C/BE2
A34 -FRAME B34 GND
A35 GND B35 -IRDY
A36 -TRDY B36 +3.3V
A37 GND B37 -DEVSEL
A38 -STOP B38 GND
A39 +3.3V B39 -LOCK
A40 SDONE B40 -PERR
A41 -SB0 B41 +3.3V
A42 GND B42 -SERR
A43 PAR B43 +3.3V
A44 AD15 B44 C/BE1
A45 +3.3V B45 AD14
A46 AD13 B46 GND
A47 AD11 B47 AD12
A48 GND B48 AD10
A49 AD9 B49 GND

Pin Signal Name Pin Signal Name

C1 C/BE0 D1 AD8

C2 +3.3V D2 AD7

C3 AD6 D3 +3.3V

C4 AD4 D4 AD5

C5 GND D5 AD3

C6 AD2 D6 GND

C7 AD0 D7 AD1

C8 +5V D8 +5V

C9 -REQ64 D9 -ACK64
C10 +5V D10 +5V
C11 +5V D11 +5V

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AR-B1670 User’s Guide

1.3.3 Real-Time Clock and Non-Volatile RAM

The AR-B1670 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 it uses 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

Table 1-5 Real-Time Clock & Non-Volatile RAM

1.3.4 Timer

The AR-B1670 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-B1670 User’s Guide

1.4 SERIAL PORTS

The ACEs (Asynchronous Communication Elements ACE1 to ACE4) not only used to convert parallel data to a
serial format on the transmit side but also used to convert serial data to parallel on the receiver side. The serial
format 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) in order to transmission and reception. The ACEs are capable of
handling divisors of 1 to 65535, and produce a 16x clock for driving the internal transmitter logic.

Provisions are not only included the use of this 16x clock to drive the receiver logic but also included in the ACE is
as 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 gives 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)

Table 1-6 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

Register

1-6

(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)

AR-B1670 User’s Guide

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AR-B1670 User’s Guide

(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

Table 1-7 Serial Port Divisor Latch

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

1.5 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

Table 1-8 Registers’ Address

(2) Printer Interface Logic

The parallel portion of the SMC37C672 makes the attachment of various devices that accept eight bits of parallel
data at standard TTL level possible.

(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.

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AR-B1670 User’s Guide

line during printing, or when the

not

This bit represents the current state of the printer’s ACK signal. A 0 means the printer has received the

be active for approximately 5

(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

Figure 1-2 Printer Status Buffer

NOTE: X represents not used.

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

print head is changing position or in an error state. When Bit 7 is active, the printer is busy and can
accept data.

Bit 6:

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

Bit 5: A 1 means the printer has detected the end of the paper.

Bit 4: A 1 means the printer is selected.

Bit 3: A 0 means the printer has encountered an error condition.

1-9

AR-B1670 User’s Guide

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

A 0.5 microsecond minimum highly active pulse clocks data into the printer. Valid data must be present

(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:

X X

Figure 1-3 Bit’s Definition

NOTE: X represents not used.

Bit 5:

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

Bit 4: A 1 in this position allows an interruption to occur when ACK changes from low state to high state.

Bit 3: A 1 in this bit position selects the printer.

Bit 2: A 0 starts the printer (50 microseconds pulse, minimum).

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

Bit 0:

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

1234567 0

STROBE
AUTO FD XT
INIT
SLDC IN
IRQ ENABLE

DIR(write only)

1-10

AR-B1670 User’s Guide

2. SETTING UP THE SYSTEM

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

l Overview
l System Settings

2.1 OVERVIEW

The AR-B1670 is a Pentium II/III grade single CPU boards. This section provides hardware and jumper settings,
connector locations, and pin assignments.

Figure 2-1 External System Location

2-1

AR-B1670 User’s Guide

2.2 SYSTEM SETTINGS

Jumper pins allow you to set specific system parameters. Set them by changing the pin location of the 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.

We will show the locations of the AR-B1670 jumper pins, and the factory-default settings.

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.

2.2.1 Hard Disk (IDE) Connector (CN3)

A 40-pin header type connector (CN3) is provided to interface with up to two embedded hard disk drives (IDE PCI
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. The following table illustrates
the pin assignments of the hard disk drive’s 40-pin connector.

2
1

Figure 2-2 CN3: Hard Disk (IDE) 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 DRQ A 22 GROUND
23 -IOW A 24 GROUND
25 -IOR A 26 GROUND
27 -CHRDY A 28 NOT USED
29 DACK A 30 GROUND
31 -IRQ A 32 NOT USED
33 SA 1 34 NOT USED
35 SA 0 36 SA 2
37 CS 0 38 CS 1
39 HD LED A 40 GROUND

Table 2-1 HDD Pin Assignment

2-2

2.2.2 PC/104 Connector

CN7

AR-B1670 User’s Guide

(1) 64-Pin PC/104 Connector Bus A & B (CN8)

2

1

64-Pin PC/104 Connector

Figure 2-3 CN8: 64-Pin PC/104 Connector Bus A & B

-IOCHCK --­SD7 --­SD6 --­SD5 --­SD4 --­SD3 --­SD2 --­SD1 --­SD0 ---

IOCHRDY---

AEN ---

SA19 --­SA18 --­SA17 --­SA16 --­SA15 --­SA14 --­SA13 --­SA12 --­SA11 --­SA10 ---

SA9 --­SA8 --­SA7 --­SA6 --­SA5 --­SA4 --­SA3 --­SA2 --­SA1 --­SA0 ---

GND ---

A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32

Figure 2-4 CN8: 64-Pin PC/104 Connector Bus A & B

(2) 40-Pin PC/104 Connector Bus C & D (CN7)

GND ---

-BHE --­LA23 --­LA22 --­LA21 --­LA20 --­LA19 --­LA18 --­LA17 ---

-MEMR ---

-MEMW ---

SD10 --­SD11 --­SD12 --­SD13 --­SD14 --­SD15 ---

Not Used ---

Figure 2-5 CN7: 40-Pin PC/104 Connector Bus C & D

SD8 --­SD9 ---

C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20

CN7

1 2

CN9

1 2

B1
B2
B3
B4
B5
B6
B7
B8

B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32

D1
D2
D3
D4
D5
D6
D7
D8

D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20

--- GND

--- RSTDRV

--- +5 VDC

--- IRQ9

--- -5 VDC

--- DRQ2

--- -12 VDC

--- -ZWS

--- +12 VDC

--- GND

--- -SMEMW

--- -SMEMR

--- -IOW

--- -IOR

--- -DACK3

--- DRQ3

--- -DACK1

--- DRQ1

--- -REFRESH

--- BUSCLK

--- IRQ7

--- IRQ6

--- IRQ5

--- IRQ4

--- IRQ3

--- -DACK2

--- TC

--- BALE

--- +5 VDC

--- OSC

--- GND

--- GND

--- GND

--- -MEM16

--- -IOCS16

--- IRQ10

--- IRQ11

--- IRQ12

--- IDEIRQA

--- IDEIRQB

--- -DACK0

--- DRQ0

--- -DACK5

--- DRQ5

--- -DACK6

--- DRQ6

--- -DACK7

--- DRQ7

--- +5 VDC

--- -MASTER

--- GND

--- GND

64

63

2-3

AR-B1670 User’s Guide

The BUSCLK signal of the I/O channel is asynchronous

voltage or

tem Address lines run from bit 0 to 19. They are

ch Enable is used to latch

SA19 onto the falling edge. This signal is forced

The I/O Channel Check is an active low signal which

This signal lengthens the I/O, or memory read/write cycle,

The Interrupt Request signal indicates I/O service request

The I/O Read signal is an active low signal which

al which instructs

The System Memory Read is low while any of the low

The Memory Read signal is low while any memory

The System Memory Write is low while any of the low

The Memory Write signal is low while any memory

bit data transfers.

bit data

transfers. DMA request should be held high until the

corresponding DMA has been completed. DMA request

priority is in the following sequence:(Highest) DRQ 0, 1,

The DMA Acknowledges 0 to 3, 5 to 7 are the

corresponding acknowledge signals for DRQ 0 to 3 and 5

The DMA Address Enable is high when the DMA

controller is driving the address bus. It is low when the

This signal is used to indicate a memory refresh cycle

and can be driven by the microprocessor on the I/O

Terminal Count provides a pulse when the terminal count

The System Bus High Enable indicates the high byte SD8

(3) PC/104 Bus Signal Description

Name Description

BUSCLK [Output]

RSTDRV [Output]

SA0 - SA19

[Input / Output]

LA17 - LA23

[Input/Output]

SD0 - SD15

[Input/Output]

BALE [Output]

-IOCHCK [Input]

IOCHRDY

[Input, Open collector]

IRQ 3-7, 9 -12, 14, 15

[Input]

-IOR

[Input/Output]

-IOW [Input/Output]

-SMEMR [Output]

-MEMR

[Input/Output]

-SMEMW [Output]

-MEMW

[Input/Output]

DRQ 0-3, 5-7 [Input]

to the CPU clock.
This signal goes high during power-up, low line­hardware reset
The Sys
latched onto the falling edge of "BALE"
The Unlatched Address line run from bit 17 to 23

System Data bit 0 to 15

The Buffered Address Lat
SA0 –
high during DMA cycles

indicates that a parity error exist on the I/O board

and should be held low with a valid address

attention. They are prioritized in the following sequence:
(Highest) IRQ 9, 10, 11, 12, 13, 15, 3, 4, 5, 6, 7 (Lowest)

instructs the I/O device to drive its data onto the data bus
The I/O write signal is an active low sign
the I/O device to read data from the data bus

1mega bytes of memory are being used

location is being read

1mega bytes of memory is being written

location is being written
DMA Request channels 0 to 3 are for 8­DMA Request channels 5 to 7 are for 16-

-DACK 0-3, 5-7

[Output]

AEN [output]

-REFRESH

[Input/Output]

TC [Output]

SBHE [Input/Output]

2-4

2, 3, 5, 6, 7 (Lowest)

to 7

CPU is driving the address bus

channel

for any DMA channel is reached

- SD15 on the data bus

AR-B1670 User’s Guide

The MASTER is the signal from the I/O processor which

gains control as the master and should be held low for a

microseconds or system memory may be

The Memory Chip Select 16 indicates that the present

bit data memory

/O Chip Select 16 indicates that the present data

The Zero Wait State indicates to the microprocessor that

bus cycle can be completed without inserting

2 Not Used

123

456

6

Name Description

-MASTER [Input]

maximum of 15
lost due to the lack of refresh

-MEMCS16

[Input, Open collector]

-IOCS16

[Input, Open collector]

OSC [Output]

-ZWS

[Input, Open collector]

data transfer is a 1-wait state, 16­operation
The I
transfer is a 1-wait state, 16-bit data I/O operation
The Oscillator is a 14.31818 MHz signal

the present
additional wait cycle

Table 2-2 PC/104 Bus Signal Description

2.2.3 Keyboard and PS2 Mouse Connector

(1) 6-Pin Mini DIN Keyboard Connector (CN9)

The CN9 is a Mini-DIN 6-pin connector. This keyboard connector is PS/2 type keyboard connector. This
connector is also for a standard IBM-compatible keyboard when used with the included keyboard adapter cable.

1 DATA

3 GND
4 VCC

5 CLOCK
6 Not Used

CN9 (Front View)

Figure 2-6 CN9: 6-Pin Mini DIN Keyboard Connector

(2) PS2 Mouse and Keyboard connector (CN10)

CN10 provides connection of PS2 mouse and Keyboard. Those pins for keyboard are parallel with CN9, which
provides another selection of connecting with keyboard.

6. Keyboard CLK

5. Mouse CLK

4. VCC

3. GND

2. Keyboard DATA

1

1. Mouse DATA

2.2.4 FDD Port Connector (CN2)

The AR-B1670 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.

2 34
1

Figure 2-7 CN2: FDD Port connector

33

2-5

AR-B1670 User’s Guide

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 ENABLE

8 -INDEX 26 -TRACK 0
10 -MOTOR ENABLE 0 28 -WRITE PROTECT
12 -DRIVE SELECT 1
14 -DRIVE SELECT 0
16 -MOTOR ENABLE 1 34 DISK CHANGE

Table 2-3 FDD Pin Assignments

GROUND 18 -DIRECTION

2.2.5 Parallel Port Connector (CN1)

To use the parallel port, an adapter cable has to be connected to the CN1 (26-pin header type) connector. The
connector for the parallel port is a 25-pin D-type female connector.

2
1

Parallel Port Connector

30 -READ DATA
32 -SIDE 1 SELECT

26
25

14

1

25

13

DB-25

D-Type Connector

Figure 2-8 CN1: Parallel Port Connector

CN1 DB-25

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
11 6 Data 4 12
13 7 Data 5 14
15 8 Data 6 16
17 9 Data 7 18
19 10 -Acknowledge 20
21 11 Busy 22
23 12 Paper 24
25 13 Printer Select 26

Table 2-4 Parallel Port Pin Assignments

Signal CN1 DB-25

Signal

18 Ground
19 Ground
20 Ground
21 Ground
22 Ground
23 Ground
24 Ground
25 Ground

-- No Used

2-6

2.2.6 Serial Port

3

2

1

3

2

1

3

AR-B1670 is equipped with two serial ports. COM-A is a standard RS-232 interface. It uses DB2 to connect with
other equipments. If you want to connect COM-A to a RS-485 network, you should connect an external RS-485
adaptor to DB2 and adjust jumper position of JP10. AR-M9912 RS-485 converter is a good solution to convert
RS-232 to isolated RS-485 interface. COM-B uses CN5 and an adaptor cable to interface with external
equipment. It can be configured as a RS-485or RS-232 port. Configuring JP5 can configure COM-B as an RS­232 or RS-485. You can also use AR-M9912 to converter COM-B as an isolated RS-485 port.

(1) RS-232/RS-485 Select (JP5, JP7 & JP10)

(A) COM-A RS-485 Adapter Select (JP10)

AR-B1670 User’s Guide

Figure 2-9 JP10: COM-A RS-485 Adapter Select

(B) COM-B RS-485 Adapter Select (JP7)

Figure 2-10 JP7: COM-B RS-485 Adapter Select

(C) COM-B RS-232C/RS-485 Select (JP5)

RS-232
(Factory Preset)

Figure 2-11 JP5: COM-B RS-232C/RS-485 Select

(D) Touch Screen Connector (J3)

J3 is a serial port, which is parallel with COM-B. It provides another choice when user needs a serial port but
need to connect from board directly without connecting through a D-type connector. The typical application is a
touch screen panel.

RS-485

1.RXD

2

1

2:TXD
3:GND

2-7

AR-B1670 User’s Guide

2

Enable

DB2 (COM A)

-DSR7-RTS

123456789

10

(2) RS-485 Terminator Select (JP6)

Install a 2-pin jumper cap on JP6 will cross a 150 Ohms resistor over the COM2 when it is configured as RS-485
interface.

Figure 2-12 JP6: RS-485 Terminator Select

(3) RS-232 Connector (CN5 & DB2)

9-RI

Figure 2-13 DB2 & CN5: RS-232 Connector

DB2

1 -DCD 6 -DSR

2 RXD 7 -RTS

3 TXD 8 -CTS

4 -DTR 9 -RI

5 GND -- Not Used

Table 2-5 Serial Port RS-232 Connector Pin Assignments

CN5

1 -DCD 2 -DSR
3 RXD 4 -RTS/485+
5 TXD 6 -CTS
7 -DTR/485- 8 -RI
9 GND 10

Signal CN5

1

Disable

(Factory preset)

6

8-CTS

Signal DB2

1 -DCD
2 RXD
3 TXD
4 -DTR
5 GND

1 2

CN5 (COM B)

Signal

Signal

Case GND

2-8

2.2.7 CN6: Ethernet RJ-45 Header

J4

13579

264

The system supports onboard network connectivity. To utilize this function, install the network driver from the
utility diskette, and connect the cable to the following RJ-45 header.

AR-B1670 User’s Guide

18

J9:RJ45 HEADER Signal J9:RJ45 HEADER Signal

1 TPTX+ 8 No connection
2 TPTX- 9 No connection
3 TPRX+ 10 No connection
4 No connection 11 LED ­5 No connection 12 LED +
6 TPRX- 13 LAN CG
7 No connection 14 LAN CG

2.2.8 USB Connector (J4)

USB is the abbreviation of Universal Serial Bus. The Universal Serial Bus (USB) standard is a low-to-medium
speed interface for the connection of PC peripherals.
The USB standard simplifies the connection of peripherals to PCs with a uniform hardware and software
interface. Personal computers equipped with USB allow computer peripherals to be automatically configured as
soon as they are physically attached - without the need to reboot or run setup.
USB is a leading edge technology that allows the user to quickly and easily add a wide range of peripheral
devices from printers to keyboards and telephony devices to fax/modems. Universal Host Controller Interface
(UHCI) and future support for the Open Host Controller Interface (OHCI) ensure USB compatibility and usability
well into the future.
The connector on the CPU board supports two Universal Serial Bus ports. An optional external port bracket
attaches to the onboard connector via an attached cable. With the optional port bracket installed you can attach
USB devices to the external ports. If the USB ports are installed, the USB Controller line in the Integrated
Peripherals section of the CMOS Setup utility must be set to “Enabled”. USB ports may also require Operating
System support for USB devices.

Figure 2-14 CN6: RJ-45 Header

Table 2-6 RJ-45 Pin Assignments

8

10

Figure 2-14 J4: USB Connector

Pin Description Pin Description

1 VCC 2 VCC
3 -DATA0 4 -DATA1
5 +DATA0 6 +DATA1
7 GND0 8 GND1
9 CASE0 10 CASE1

Table 2-6 J4: USB Connector Pin Assignments

2-9

AR-B1670 User’s Guide

1

2

LED

+

2.2.9 External Speaker Header (J5)

Besides the onboard buzzer, you can use an external speaker by connecting it to the J5 header.

Figure 2-15 J5: External Speaker Header

2.2.10 Reset Header (J8)

The J8 jack is used to connect to an external reset switch. Shorting these two pins will reset the system.

Figure 2-16 J8: Reset Header

2.2.11 LED Header

1 Speaker+
2 Speaker­3 Speaker­4 Speaker-

1.Reset+

2.Reset-

(1) HDD LED Header (J2)

2.2.12 Power Connector (CN4)

The CN4 is an 8-pin power connector. You can directly connect the power supply to the onboard power
connector for stand-alone applications.

Figure 2-18 CN4: 8-Pin Power Connector

LED-

Figure 2-17 J2: HDD LED Header

8
7
6
5
4
3
2
1

-5 VDC

-12 VDC
+12 VDC
GND
GND
+5 VDC
+5 VDC
GND

2-10

AR-B1670 User’s Guide

2

1 2

1 2

2.2.13 CPU Setting

For different CPUs, please set proper FSB clock on JP9 as described bellow. No other setting is required.

Supported Processors

Types Designation System bus

frequency

Pentium III processor in
an FC-PGA package
Celeron processor in an
FC-PGA package
Celeron processor in a
PPGA package

500E, 550E, 600E, 650, 700, 750,
800, 850 and 900

533A, 566, 600, 633, 667, 700,
533A, 566, 600, 633, 667, 700

300A, 333, 366, 400, 433, 466, 500,
533

100 MHz 256KB

66 MHz 128KB

66 MHz 128KB

Cyrix III processor 500MHz, and 600MHz 100 MHz 128KB (L1)

The processor fan header (J7) on the board is intended to drive a processor-mounted fan either full-speed or
off, depending on the operating state of the system. The fan speed is monitored by the hardware monitor
subsystem.

CPU Cooling Fan Power Connector (J7)

L2 Cache Size

3.FANSpeed
+12V

1

GND

Figure 2-19 J7: CPU Cooling Fan Power Connector

System Bus Clock (JP9)

100/66

100 MHz

Figure 2-20 JP9: System Bus Clock

100/66

66 MHz

(Factory Preset)

2-11

AR-B1670 User’s Guide

1 2

1 2 3

1 2 3

2.2.14 External Battery Connector

J6 is a 2-pin connector and provides the connection of an external battery. When using an external connector,
mini jumper on JP8 should set to the position 2 and 3.

Pin1:
Pin2: -

+

J6

2.2.15 DRAM Configuration

It can assemble 16/32/64/128/256MB 168 pin DIMM Module Memory. When you set up 168-pin DIMM Module
Memory, AR-B1670 will auto-detect DRAM, and adopt correct save in order to make memory work till the best
situation.
Caution: Set up 168-pin DIMM Module Memory, please insert into slot vertical, if the direction is wrong and it
leads to failure, please confirm the direction is right.

Internal Batt.

JP8

External Batt.

2-12

AR-B1670 User’s Guide

AR-B9416

3. CRT/LCD FLAT PANEL DISPLAY

This chapter describes the configuration and installation procedures for LCD & CRT displays. The following topics
are covered:

l CRT Connector
l LCD Flat Panel Displays

※ DON’T SUPPORT EXTERNAL VGA CARD

3.1 CRT CONNECTOR (DB1)

The AR-B1670 supports CRT color monitors. It uses an onboard VGA chipset and you can use the VGA RAM
2MB. For different VGA display modes, your monitor must possess certain characteristics (the right drivers) to
display the mode you want.
To connect to a CRT monitor, an adapter cable has to be connected to the DB1 connector. DB1 is used to
connect with a VGA monitor when you are using the on-board VGA controller as a display adapter. Pin assignments
for the DB1 connector are as follows:

DB1 (CRT Connector)

10

15

11 1

5

1 Red
2 Green

4

3 Blue
13 Horizontial Sync

3

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

2

5 & 10 Ground
6, 7 & 8 AGND

6

Figure 3-1 DB1: CRT Connector

3.2 LCD FLAT PANEL DISPLAYS

Figure 4-2 shows the connection between AR-B1670 and LCD panel.

The VGA BIOS of AR-B167 support 640X480 resolution TFT display. Connecting AR-B1670 to other LCD needs
different LCD BIOS. Please visit our web site (www.acrosser.com) or contact with our technical support department
([e-mail]) for supports of LCD connecting.

AR-B1670

12V & backlight

Control

CN11

Inverter

Figure 3-2 LCD Panel Block Diagram

LCD
Panel

Backlight
Power

3-1

AR-B1670 User’s Guide

3.2.1 Inverter Board

Acrosser provide a series of optional kit to simplify the connection of CPU card with LCD panels.

Products LCD types

AR-K0001 Single-tube backlight TFT LCD
AR-K0002 DSTN LCD
AR-K0003 MONO LCD
AR-K0005 LVDS TFT LCD
AR-K0009 Dual-tube backlight TFT LCD

3.2.2 LCD Connector

LCD Panel Display Connector (CN11)

CN11 is a 44-pin connector, which is used for the interface of flat panel display. The pin descriptions are listed in Table
4-1.

2
1

Figure 3-3 CN11: LCD Display Connector

Pin Number Signal Name Description

1 GND Ground
2 SHFCLK Shift Clock. Pixel clock for flat panel data.
3 GND Ground
4 LP Latch Pulse. Flat Panel equivalent of HSYNC. Some panels

use the signal name of CL1.
5 FLM First Line Marker. Flat Panel equivalent of VSYNC.
6 GND Ground
7 P0(B0) Flap panel data bus (P0 to P23) of up to 24-bits.
8 P1(B1
9 P2(B2)

10 P3(B3)
11 P4(B4)
12 P5(B5)
13 GND Ground
14 P6(B6)
15 P7(B7)
16 P8(G0)
17 P9(G1)
18 P10(G2)
19 P11(G3)
20 GND Ground
21 P12(G4)
22 P13(G5)
23 P14(G6)
24 P15(G7)
25 P16(R0)

44
43

3-2

AR-B1670 User’s Guide

26 P17(R1)
27 GND Ground
28 P18(R2)
29 P19(R3)
30 P20(R4)
31 P21(R5)
32 P22(R6)
33 P23(R7)
34 GND Ground
35 VCC +5V
36 VCC +5V
37 +12V +12V
38 +12V +12V
39 GND Ground
40 GND Ground
41 DE Display Enable (DE) for TFT Panels
42 ENABLK Power sequencing control for enabling the backlight.
43 GND Ground
44 NC No Connection

Table 3-1 LCD Display Assignments

Note:

1. To make the connecting cable for flat panel, please refer to the data sheet of flat panel.

2. The Display Enable (DE) control signal of TFT display on pin-41 is factory pre-set by the BIOS. Please stay the
jumper of JP4 on DE/M position as Figure 4-4.

1 2 3 1 2 3

E/LPDE/M

Factory Preset

Figure 3-4 JP4: DE/E Signal from M or LP

3-3

AR-B1670 User’s Guide

Plug the CPU card into a free PICMG slot on the back plane and secure it in place with a screw to the

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

nnect a power source

4. INSTALLATION

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

l Overview
l Utility Diskette – for AR-B1670
l Watchdog Timer

4.1 OVERVIEW

This chapter provides information for you to set up a working system based on the AR-B1670 CPU cards. Please
carefully read the CPU card’s hardware descriptions before installation, especially 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:

Step 11:

Step 12:

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

Install any SDRAM DIMM modules onto the CPU card.

Set the jumpers.

Make sure that the power supply connected to your passive back plane is turned off.

system chassis.

to pin 1 of the related connector.

Connect the hard disk/floppy disk flat cables from the CPU card to the drives. Co
to each drive.

Plug the keyboard into the keyboard connector.

Turn on the power.

Configure your system with the BIOS Setup program then re-boot your system.

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

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

4.2 UTILITY DISKETTE – FOR AR-B1670

AR-B1670 provides six driver diskettes containing drivers VGA for WIN3.1, WIN95/98, and WINNT4.0 and LAN
chip. The contents of these diskettes are: disk#1 is WIN3.1&WINNT4.0 drivers, disk#2 is WIN95 driver; disk#3 is
WIN98 driver, disk#4 is LAN chip drivers, disk#5 is BIOS update utility and disk#6 is users manual. After extracting the
compressed files, please refer to the README.TXT file in the decompressed sub-directories for any
troubleshooting before driver installation.

4-1

AR-B1670 User’s Guide

, you start setting up Driver. When the

Enter into the WIN95 operating system; the picture is 640*480 256 colors form. Click <Settings> and

WIN31DRV.EXE,

press [ENTER] to select <All

Follow the setup steps’ messages. When completed the setup procedure will generate the following

ry and type SETUP to run the Windows Setup program. Choose one

4.2.1 WIN 3.1 Driver

For the WIN31 operating system, the user must be in DOS mode to decompress the compressed file. And then
follow these steps:

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Step 7:

Make a new directory for the VGA drivers.
C:\>MD VGAW31

Insert Utility Disk #1 into the floppy disk drive, and then copy the compressed file—
which is a self-extraction program. You can copy the file and execute the file in DOS mode.

C:\>COPY A:\WIN31DRV.EXE C:\VGAW31

Change directory to the newly created directory, and extract the compressed file. You can find that
there are there are many files and one <windows> directory generated.

C:\>CD VGAW31
C:\VGAW31>WIN31DRV

In WIN31 mode execute the SETUP.BAT file. It will generate the SETUP MENU.
C:\VGAW31>SETUP

The screen shows the chip type and presses any key to enter the main menu.
Please choose the <Windows Version 3.1 (6555X accelerated drivers)>,

Resolutions>. When this line appears [*], that means this item is selected. Press [End] to install.
The screen will show the dialog box to prompt the user for the WIN31 path. The default is C:\WINDOWS.

Step 8:

message.

The Installation is done!
Change to your Windows directo

of the new drivers marked by an *. Please refer to the User’s Guide to complete the installation.

Step 9:

Step 10:
Step 11:

Press [Esc] to return the main menu, and press [Esc] to return to the DOS mode.
In WIN31, you can find the <Chips CPL> icon located in the {CONTROL PANEL} group.
Adjust the <Refresh Rate>, <Cursor Animation>, <Font size>, <Resolution>, and <Big Cursor>.

4.2.2 WIN 95 Driver

For the WIN95 operating system, the user must be in DOS mode to decompress the compressed file.

Step 1:
Step 2:
Step 3:

Step 4:

CAUTION: If you decompress the files in the newly created directory, you can find the README file, it gives detailed

Enter into WIN95 Operating System and Insert Utility Disk #2 (WIN 95 DRV).
Click<START> items and choose <RUN…>.
In the <Open> item, you key in A: \ w95500, in the same time

process is done, you re-start setting up the computer.

enter into “ Control Panel ” “ Display”, you may alter resolution pixels according to what you need.

installation information.

4-2

AR-B1670 User’s Guide

ime, you start setting up Driver. When the

Enter into the WIN98 operating system, the picture is 640*480 256 colors form. Click <Settings> and

in the

TTING> item from the <DISPLAY> icon in the

t and click the

Find the <Chips> item in the <DISPLAY> icon. You can select this item, and adjust the <Screen

Resolution>, <Refresh Rate>, <Font Size>…and other functions. Please refer to the messages

4.2.3 WIN 98 Driver

For the WIN98 operating system, the user must be in DOS mode to decompress the compressed file.

Step 1:

Step 2:
Step 3:

Step 4:

CAUTION: If you decompress the files in the newly created directory, you can find the README file, it gives detailed

Enter into WIN98 Operating System and Insert Utility Disk #3 (WIN 98 DRV).

Click<Start> items and choose <RUN…>.
In the <Open> item, you key in A:\ w98600, in the same t

process is done, you re-start setting up the computer.

enter into “ Control Panel ” “ Display”, you may alter resolution pixels according to what you need.

installation information.

4.2.4 WINNT4.0 Driver

For the WINNT4.0 operating system, the user must decompress the compressed files in DOS mode. And then
follow these steps:

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Make a new directory to contain the VGA drivers.

C:\>MD VGANT40

Insert Utility Disk into the floppy disk drive, and then copy the compressed file—NT40DRV.EXE
newly created directory.

C:\>COPY A:\NT40DRV.EXE C:\VGANT40

Change directory to the new directory, and then extract the compressed file.

C:\>CD VGANT40
C:\VGANT40>NT40DRV

Enter the WINNT4.0 operating system; choose the <SE
{CONTROL PANEL}. Please select the <From Disk Install> item, and type the factory source files’

path.
C:\VGANT40

Find the <Chips Video Accelerator (65545 / 48 / 50 / 54 / 55 68554 69000)> item, select i
<OK> button.

posted during installation.

4.2.5 LAN DRIVER UTILITES

Introduction

When the AR-B1670 is embedded with the LAN function, it can support various network adapters. Installation
programs for LAN drivers are provided in Disk#4. The user must be in DOS mode to decompress the
compressed file.

4-3

AR-B1670 User’s Guide

Installing Driver Procedure on Microsoft Windows 95/98
Executing Windows 95/98, it will auto-detect your system configuration and find the adapter hardware.

Step 1:
Step 2

Step3

Installing Driver Procedure on Microsoft Windows NT

Step1

l In the Main group of NT, select the “Control Panel” icon.

l The user must be in DOS mode to decompress the compressed file the user must be in DOS mode to

decompress the compressed file Windows 95 will appear some messages to insert Windows 95 system disk to
complete setup Windows 95 will finish the other installation procedure automatically, then restart the system. In
the Control Panel window, choose the “ Network” icon. In the Network settings dialog box, choose the “Add
adapter” button.

l In the list of network cards, select <other> requires disk from manufacturer”, and press the <Enter> button.
l Specify the path, which the files decompress to.
l The screen will show the “select Line Speed” dialog box, which is provided by the RTL8139.SYS driver. The

default value “ auto” so that the line speed can be auto detected as 10Mb or100Mb, while the RTL8139.SYS is
loading.

l The screen will show the “Input Ethernet ID” dialog box, which is provided by the RTL8139.SYS driver. The

option is only required when you have more than one RTL8139 PCI Fast Ethernet adapter on this computer.

l Select “SKIP” if only one adapter is installed on this computer.
l “Bus Location” display in next screen. Your machine contains more than one hardware bus; please select the

bus Type and Bus number on which your network adapter card is installed.

l NT will then perform the binding process. If there is any additional information for these packages.
l 10.Re-boot your system when installation is implemented.

Note: For Installing Multiple LAN Adapters:
Enter Windows NT and follow the above setup procedure step2 in the “ Network Settings” dialog box, choose the
configure…” button. The “input Ethernet ID” dialog box appears and input adapter’s Ethernet ID. Last step is to
select OK and close the NETWORK SETUP. Select SKIP if only one adapter is installed on this computer.

Specify the path, which the files decompress to.

Windows 95 will appear some messages to insert Windows 95 system disk to complete setup

Windows 95 will finish the other installation procedure automatically, and then restart the system.

In the Main group of NT, select the “Control Panel” icon.
In the Control Panel window, choose the “ Network” icon.

4.3 WATCHDOG TIMER

The AR-B1670 is equipped with a programmable time-out period watchdog timer. You can use the program to
enable the watchdog timer. Once you have enabled the watchdog timer, the program should trigger it every time
before it times out. If your program fails to trigger or disable this timer before it times out, because of system hang,
the timer will generate a interrupt to execution your command or TSR. The time-out period can be programmed to
be from 1 seconds to 255 minutes.

4.4 EXECUTION OF THE WATCHDOG

1. Execute TSR program., and indicate Hard Ware interrupt ( IRQ 3,4,5,9,10,11,12,15).
(Ex: WD_tsr 15).

2. Execute WD_DEMO, Customers can refer to source and adjust the program you need.

4-4

AR-B1670 User’s Guide

5.BIOS CONSOLE

This chapter describes the BIOS menu displays and explains how to perform common tasks needed to get up and
running. It also 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 Advanced CMOS Setup
l Advanced Chipset Setup
l Power Management
l PCI/Plug and Play
l Peripheral Setup
l Hardware Monitor Setup
l Auto-Detect Hard Disks
l Password Setting
l Load Default Setting
l BIOS Exit
l BIOS Update

5.1 BIOS SETUP OVERVIEW

The BIOS is a program used to initialize and set up the I/O system of the computer, which includes the PCI bus
and connected devices such as the video display, diskette drive, and the keyboard.
The BIOS provides a menu-based interface to the console subsystem. The console subsystem contains special
software, called firmware that interacts directly with the hardware components and facilitates interaction between
the system hardware and the operating system.
The BIOS default values ensure that the system will function at its normal capability. In the worst situation the user
may have corrupted the original settings set by the manufacturer.
After the computer is turned on, the BIOS will perform diagnostics on the system and display the size of the
memory that is being tested. Press the [Del] key to enter the BIOS Setup program, and then the main menu will
show on the screen.
The BIOS Setup main menu includes some options. Use the [Up/Down] arrow key to highlight the option that you
wish to modify, and then press the [Enter] key to select the option and configure the functions.

AMIBIOS HIFLEX SETUP UTILITY - VERSION 1.23

(C) 1999 American Megatrends, Inc. All Rights Reserved

Standard CMOS Setup

Advanced CMOS Setup

Advanced Chipset Setup

Power Management Setup

PCI/Plug and Play Setup

Peripheral Setup

Hardware Monitor Setup

Auto-Detect Hard Disks

Change User Password

Change Supervisor Password

Auto Configuration with Optimal Settings

Auto Configuration with Fail Safe Settings

Save Settings and Exit

Exit Without Saving

Standard CMOS setup for changing time, date, hard disk type, etc.

Figure 5-1 BIOS: Setup Main Menu

5-5

AR-B1670 User’s Guide

CAUTION: 1. In the AR-B1670 BIOS the factory-default setting is the <Auto Configuration with Optimal Settings>

Acrosser recommends using the BIOS default settings, unless you are very familiar with the settings
function, or you can contact the technical support engineers (FAE).

2. If the BIOS loses the settings, the CMOS will detect the <Auto Configuration with Fail Safe Settings>
to boot the operating system. This option will reduce the performance of the system. Acrosser
recommends choosing the <Auto Configuration with Optimal Settings> 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.

5.2 STANDARD CMOS SETUP

The <Standard CMOS Setup> option allows you to record some basic system hardware configurations 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.

AMIBIOS SETUP - STANDARD CMOS SETUP

(C) 1999 American Megatrends, Inc. All Rights Reserved

Date (mm/dd/yyyy): Tue Jun 02,1998 640KB
Time (hh/mm/ss): 13:39:30 63MB

Floppy Drive A: Not Installed
Floppy Drive B: Not Installed
LBA Blk PIO 32Bit

Pri Master : Auto Off Off Auto Off
Pri Slave : Auto Off Off Auto Off
Sec Master Auto Off Off Auto Off
Sec Slave Auto Off Off Auto Off

Boot Sector Virus Protection Disabled

Type Size Cyln Head Wpcom Sec Mode Mode Mode Mode

Month: Jan - Dec ESC:Exit ↑↓:Sel
Day: 01 - 31 PgUp/PgDn:Modify

Year: 1901 - 2099 F2/F3:Color

Figure 5-2 BIOS: 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.

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.

5-6

AR-B1670 User’s Guide

Hard Disk Setup

The BIOS supports various types for user settings, The BIOS supports <Pri Master> and <Pri 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.
You can select <AUTO> under the <TYPE> and <MODE> fields. This will enable auto detection of your IDE drives
during bootup. 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 as described above by the <USER> option.

Boot Sector Virus Protection

This option protects the boot sector and partition table of your hard disk against accidental modifications. Any
attempt to write to them will cause the system to halt and display a warning message. If this occurs, you can either
allow the operation to continue or use a bootable virus-free floppy disk to reboot and investigate your system. The
default setting is <Disabled>. This setting is recommended because it conflicts with new operating systems.
Installation of a new operating systems requires that you disable this to prevent write errors.

5.3 ADVANCED CMOS SETUP

The <Advanced CMOS 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.

AMIBIOS SETUP - ADVANCED CMOS SETUP

(C) 1999 American Megatrends, Inc. All Rights Reserved

Quick Boot Enabled
1st Boot Device IDE-0
2nd Boot Device Floppy
3rd Boot Device CDROM
4th Boot Device Disabled
Try Other Boot Devices Yes
Floppy Access Control Read-Write
Hard Disk Access Control Read-Write
S.M.A.R.T. for Hard Disks Disabled
BootUp Num-Lock On
Floppy Drive Swap Disabled
Floppy Drive Seek Disabled
PS/2 Mouse Support Enabled
Typemaice Rate Fast
System Keyboard Absent
Primary Display Absent
Password Check Setup
Boot to OS/2 > 64MB No
Wait For ‘F1’ If Error Disabled
Hit ‘DEL’ Message Display Enabled
Internal Cache WriteBack
External Cache WriteBack
C000, 16k Shadow Cached
C400, 16k Shadow Cached
C800, 16k Shadow Disabled
CC00, 16k Shadow Disabled
D000, 16k Shadow Disabled
D400, 16k Shadow Disabled
D800, 16k Shadow Disabled
DC00, 16k Shadow Disabled

Available Options :

Disabled
Enabled

ESC:Exit ↑↓:Sel
PgUp/PgDn:Modify

F2/F3:Color

Figure 5-3 BIOS: Advanced CMOS Setup

5-7

AR-B1670 User’s Guide

Quick Boot

This category speeds up the <Power On Self Test> (POST) after you power on the computer. If it is set to
Enabled, the BIOS will shorten or skip some check items during POST.

1st Boot Device
2nd Boot Device
3rd Boot Device
4th Boot Device

These options determine where the system looks first for an operating system.

Try Other Boot Devices

If you have other boot up device other than the above mentioned devices, such as IDE-0, IDE-1, IDE-3, IDE-4,
Floppy.

Floppy Access Control

This option determines the floppy access method, which can be either read only or normal (read/write). When set
to read only, the data in the hard disk is being read instead of being written.” Normal” allows the floppy to be read
or written.

HDD Access Control

This option determines the floppy access method, which can be either read only or normal (read/write). When set
to read only, the data in the hard disk is being read instead of being written.” Normal” allows the floppy to be read
or written.

Available options: Disabled, Enabled

S.M.A.R.T for hard Disks

S.M.A.R.T is abbreviation of Self-Monitoring Analysis and Reporting Technology. It is reliable and precautious
technology. When Hard Disk disorder, it prevents Hard Disk from the loss of data.

Boot Up Num-Lock

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

Floppy Drive Swap

The option reverses the drive letter assignments of your floppy disk drives in the Swap A, B setting, otherwise
leave on the setting to Disabled (No Swap). This works separately from the BIOS Features floppy disk swap
feature. It is functionally the same as physically interchanging the connectors of the floppy disk drives. When
<Enabled>, the BIOS swaps the floppy drive assignments so that Drive A becomes Drive B, and Drive B becomes
Drive A under DOS.

Floppy Drive Seek

If the <Floppy Drive Seek> item is set to Enabled, the BIOS will seek the floppy <A> drive one time upon boot up.

PS/2 Mouse Support

The setting of Enabled allows the system to detect a PS/2 mouse on boot up. If detected, IRQ12 will be used for
the PS/2 mouse. IRQ 12 will be reserved for expansion cards if a PS/2 mouse is not detected. Disabled will
reserve IRQ12 for expansion cards and therefore the PS/2 mouse will not function.

Typematic Rate

This item specifies the speed at which a keyboard keystroke is repeated.

System Keyboard

This function specifies that a keyboard is attached to the computer.

Primary Display

The option is used to set the type of video display card installed in the system.

5-8

AR-B1670 User’s Guide

Neither L1 internal cache memory on the CPU or L2

Password Check

This option enables password checking every time the computer is powered on or every time the BIOS Setup is
executed. If Always is chosen, a user password prompt appears every time the computer is turned on. If Setup is
chosen, the password prompt appears if the BIOS is executed.

Boot to OS/2 >64MB

When using the OS/2 operating system with DRAM of greater than 64MB installed, you need to Enabled this
option; otherwise leave this on the setup default of Disabled.

Wait for ‘F1’ If Error

AMIBIOS POST error messages are followed by:

Press <F1> to continue

If this option is set to Disabled, the AMIBIOS does not wait for you to press the <F1> key after an error message.

Hit ‘DEL’ Message Display

Set this option to Disabled to prevent the following message:

Hit ‘DEL’ if you want to run setup

It will prevent the message from appearing on the first BIOS screen when the computer boots.

Internal Cache

This option specifies the caching algorithm used for the L1 internal cache memory. The settings are:

Setting Description

Disabled

secondary cache memory is enabled.

WriteBack

WriteThru

Table 5-1 Internal Cache Setting

Use the write-back caching algorithm.
Use the write-through caching algorithm.

External Cache

This option specifies the caching algorithm used for the L2 secondary cache memory. The settings are:

Setting Description

Disabled Neither L1 internal cache memory on the CPU or L2

secondary cache memory is enabled.

WriteBack Use the write-back caching algorithm.

WriteThru Use the write-through caching algorithm.

Table 5-2 External Cache Setting

5-9

AR-B1670 User’s Guide

ied to RAM. The contents of

the video ROM cannot be read from or written to cache

C7FFFh are written to the same

ritten to the

same address in system memory (RAM) for faster

execution, if an adapter ROM will be using the named

ROM area. Also, the contents of the RAM area can be

Shadow

These options control the location of the contents of the 16KB of ROM beginning at the specified memory location.
If no adapter ROM is using the named ROM area, this area is made available to the local bus. The settings are:

SETTING

Disabled

The video ROM is not cop

DESCRIPTION

memory.

Enabled

The contents of C000h ­address in system memory (RAM) for faster execution.

Cached

The contents of the named ROM area are w

read from and written to cache memory.

Table 5-3 Shadow Setting

5.4 ADVANCED CHIPSET SETUP

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

AMIBIOS SETUP - ADVANCED CHIPSET SETUP

(C) 1999 American Megatrends, Inc. All Rights Reserved

******** SDRAM Timing ********
Configure SDRAM Timeing by SPD Disabled
SDRAM RAS# to CAS# delay 3 SCLKs
RAS# Precharge 3 SCLKs
CAS# Latency 3 SCLKs
Loadoff Cmd Timing Auto
DRAM Refresh Rate 124.8us
Memory Hole Disabled
Graphics Aperture Size 64MB
8bit I/O Recovery Time 1 Sysclk
16bit I/O Recovery Time 1 Sysclk
USB Keyboard / Mouse Legacy Support Disabled

Available Options :

Disabled
Enabled

ESC:Exit ↑↓:Sel
PgUp/PgDn:Modify

F2/F3:Color

Figure 5-4 BIOS: Advanced Chipset Setup

Configure SDRAM Timing by SPD:

SPD is the abbreviation Serial Presence Detect. SPD takes accord the chip types, capacity, timing, voltage data.
The system can auto adjust memory according to the data to reach the best situation.

SDRAM RAS# to CAS# delay:

When CPU saves data from memory, it has to deliver RAS single first, and then CAS single. The item is to set up
the interval between two singles.

RAS# Precharge:

This item is the time when RAS has to be re-located.

CAS# Latency:

This item is to set up the time when memory receives one CAS single, after how much clock, the memory starts to
write and read data.

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AR-B1670 User’s Guide

Loadoff Cmd Timing:

It is the first read-write action under burst pattern

DRAM Refresh Rate:

The rate is the speed when updating DRAM Data.

Memory Hole:

This reserves the 15MB to 16MB memory address space for use of ISA expansion cards.

Graphics Aperture Size:

The item is to set up AGP display to use how much memory to save Texture Data.

8 bit I/O Recovery Time:

The item is to set up CPU to demand ISA Bus 8 bit how much it takes to recovery.

16 bit I/O Recovery Time:

The item is to set up CPU to demand ISA Bus 16 bit how much it takes to recovery.

Memory Hole at 15-16 MB

This option specifies the range 15MB to 16MB in memory that cannot be addressed on the ISA bus.

USB Keyboard/Mouse Legacy Support

These options are used to <Enabled> the USB function and it’s only useful in the DOS mode.

5.5 POWER MANAGEMENT

This section is used to configure the power management features. This <Power management Setup> option
allows you to reduce power consumption. This feature turns off the video display and shuts down the hard disk
after a period of inactivity.

MIBIOS SETUP - Power Management Setup

(C) 1998 American Megatrends, Inc. All Rights Reserved

Power Management /APM Disabled
Video Power Down Mode Disabled
Hard Disk Power Down Mode Disabled
Standby Time Out (Minute) Disabled
Suspend Time Out (Minute) Disabled
Display Activity Ignore
Device 6 (Serial Port 1) Monitor
Device 7 (Serial Prot 2) Monitor
Device 8 (Parallel Port) Ignore

Figure 5-5 BIOS: Power Management Setup

Available Options :

Disabled
Enabled

ESC:Exit ↑↓:Sel
PgUp/PgDn:Modify

F2/F3:Color

5-11

AR-B1670 User’s Guide

Power Management /APM

Enabled this option is to enable the power management and APM (Advanced Power Management) features.

Video Power Down Mode

This option specifies the power management state that the video subsystem enters after specified period of
display inactivity has expired.

Hard Disk Power Down Mode

This option specifies the power management states that the hard disk drive enters after the specified period of
display inactivity have expired.

Standby Time Out
Suspend Time Out

These options specify the length of the period of system inactivity when the computer is already in Standby mode
before the computer is placed on Suspend mode. In Suspend mode, nearly all power use is curtailed.

Device

These options enable event monitoring. When the computer is in a power saving mode, activity on the named
interrupt request line is monitored by BIOS. When any activity occurs, the computer enters Full On mode.

6.6 PCI/PLUG AND PLAY

This section is used to configure PCI / Plug and Play features. The <PCI & PNP Setup> option configures the PCI
bus slots. All PCI bus slots on the system use INTA#, thus all installed PCI cards must be set to this value.

AMIBIOS SETUP - PCI/PLUG AND PLAY SETUP

(C) 1998 American Megatrends, Inc. All Rights Reserved

Plug and Play Aware O/S Yes
Clear NVRAM No
PCI Latency Timer (PCI Clocks) 64
PCI IDE BusMaster Disabled
DMA Channel 0 PnP
DMA Channel 1 PnP
DMA Channel 3 PnP
DMA Channel 5 PnP
DMA Channel 6 PnP
DMA Channel 7 PnP
IRQ 3 PCI /PnP
IRQ 4 PCI /PnP
IRQ 5 PCI /PnP
IRQ 7 PCI /PnP
IRQ 9 PCI /PnP
IRQ 10 PCI /PnP
IRQ 11 PCI /PnP
IRQ 12 PCI /PnP
IRQ 14 PCI /PnP
IRQ 15 PCI /PnP
Reserved Memory Size Disabled
Reserved Memory Address C800

Available Options :

Yes
No

ESC:Exit ↑↓:Sel
PgUp/PgDn:Modify

F2/F3:Color

Figure 5-6 BIOS: PCI / Plug and Play Setup

Plug and Play Aware O/S

Set this option to Yes if the operating system installed in the computer is Plug and Play-aware. The BIOS only
detects and enables PnP ISA adapter cards that are required for system boot. The Windows 95 (and above)
operating system detects and enables all other PnP-aware adapter cards. Windows 95 (and above) is PnP-aware.
Set this option to <No> if the operating system (such as DOS, OS/2, Windows 3.x) does not use PnP. You must
set this option correctly or PnP-aware adapter cards installed in your computer will not be configured properly.

Clear NVRAM

This sets the operating mode of the boot block area of the BIOS FLASH ROM to allow programming in the Yes
setting.

PCI Latency Timer (PCI Clocks)

This option sets latency of all PCI devices on the PCI bus. The settings are in units equal to PCI clocks.

5-12

AR-B1670 User’s Guide

PCI IDE Bus Master

When Enabled this option specifies that the IDE controller on the PCI local bus has bus mastering capability.

DMA & IRQ

These options specify the bus that the named IRQs/DMAs lines are used on. These options allow you to specify
IRQs/DMAs for use by legacy ISA adapter cards. These options determine if the BIOS should remove an
IRQ/DMA from the pool of availability of IRQs/DMAs passed to the BIOS configurable devices. If more
IRQs/DMAs must be removed from the pool, the end user can use these PCI/PnP Setup options to remove the
IRQ/DMA by assigning the option to the ISA/EISA setting. The onboard I/O is configurable with BIOS.

Reserved memory Size

This option specifies the size of the memory area reserved for legacy ISA adapter cards.

Reserved memory Address

This option specifies the beginning address (in hex) of the reserved memory area. The specified ROM memory
area is reserved for use by legacy ISA adapter cards.

5.7 PERIPHERAL SETUP

This section is used to configure the peripheral features.

AMIBIOS SETUP - PERIPHERAL SETUP

(C) 1998 American Megatrends, Inc. All Rights Reserved

OnBoard FDC Auto
OnBoard Serial Port1 Auto
OnBoard Serial Port2 Auto
OnBoard Parallel Port Auto
Parallel Port Mode Normal
Parallel Port IRQ Auto
Parallel Port DMA Channel N/A
OnBoard PCI IDE Enabled
Primary Master Prefetch Enabled
Primary Slave Prefetch Enabled

Available Options :

Auto
Disabled
Enabled

ESC:Exit ↑↓:Sel
PgUp/PgDn:Modify

F2/F3:Color

Figure 5-7 BIOS: Peripheral Setup

OnBoard FDC

This option enables the floppy drive controller on the AR-B1670.

OnBoard Serial Port

This option enables the serial port on the AR-B1670.

OnBoard Parallel Port

This option enables the parallel port on the AR-B1670.

Parallel Port Mode

This option specifies the parallel port mode, ECP and EPP are both bi-directional data transfer schemes that
adhere to the IEEE1284 specifications.

Parallel Port DMA Channel

This option is only available if the setting for the parallel Port Mode option is ECP.

Onboard PCI MASTER/SLAVE Prefetch

This option specifies the onboard IDE controller channels that will be used.

5-13

AR-B1670 User’s Guide

5.8 AUTO-DETECT HARD DISKS

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

5.9 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. The user can set either a Supervisor
password or a User password.

5.10 SETTING THE PASSWORD

Select the appropriate password icon (Supervisor or User) 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 the BIOS is exited and
saved. The next time the system boots, you are prompted for the password.

Enter new supervisor password:

5.11 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 on the keyboard. As user select
Supervisor or User. The BIOS prompts for a password, user must set the Supervisor password before user can
set the User password. Enter a 1 to 6 characters password. The password does not appear on the screen when
typed. Make sure you write it down.

5.12 LOAD DEFAULT SETTING

This section permits users 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.

5.12.1 Auto Configuration with Optimal Setting

The user can load the optimal default settings for the BIOS. The Optimal default settings are best-case values that
should optimize system performance. If CMOS RAM is corrupted, the optimal settings are loaded automatically.

Load high performance setting (Y/N) ?

5.12.2 Auto Configuration with Fail Safe Setting

The user can load the Fail-Safe BIOS 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-B1670 User’s Guide

ress <ESC>

And then please enter the file name to the <Enter File Name> box. And the <Message> box will

5.13 BIOS EXIT

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

5.13.1 Save Settings and Exit

This item is in the <Standard CMOS Setup>, <Advanced CMOS Setup>, <Advanced Chipset Setup> 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.

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

Save current settings and exit (Y/N) ?

5.13.2 Exit Without Saving

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

Quit without saving (Y/N) ?

5.14 BIOS UPDATE

The BIOS program instructions are contained within computer chips called FLASH ROMs that are located on your
system board. The chips can be electronically reprogrammed, allowing you to upgrade your BIOS firmware
without removing and installing chips.
The AR-B1670 provides the FLASH BIOS update function for you to easily to update to a newer BIOS version.
Please follow these operating steps to update to a new BIOS:

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Step 7:

NOTE: 1 The BIOS Flash disk is not a standard accessory. Now that the onboard BIOS is updated to the newest

Turn on your system and don’t detect the CONFIG.SYS and AUTOEXEC.BAT files.

Insert the FLASH BIOS diskette into the floppy disk drive.

In the MS-DOS mode, you can type the FLASH812 program.

A:\>FLASH812

Press [ALT+F], The <File> box will show the following message, this message will be highlighted.

BIOS Filename Loading … . After typing in the File name you must press<ENTER> or p
to exit.

show the following notice.

Are you sure to write this BIOS into flash ROM?

Press the <Enter> key to update the new BIOS.
Then the <Message> box will show the <Programming now …>.

When the BIOS update is successful, the message will show <Flash ROM Update Completed ­Pass>.

version, if you need to add some functions in the future please contact the technical support (FAE)
engineers. They will provide the newest known BIOS for updating.

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AR-B1670 User’s Guide

6. SPECIFICATIONS

AR-B1670 --- Socket 370 Pentium III PCI half-size CPU Card with
LAN/VGA/LCD

* CPU: Supports 66MHz system bus Celeron and 100MHz system bus Pentium III

CPU (Socket 370).
* Chipset: Intel 440BX, Supports ECC parity checking SDRAM.
* Bus Interface: PICMG PCI and Non-stack through PC/104 bus.
* RAM Memory: Supports one 168-pin DIMM (SDRAM) socket, 256MB maximum.
* Watchdog: Software programmable.
* VGA/LCD Display: C&T 69000 chipset with internal 2MB VRAM (PCI bus, 1024*768/64K

colors).
CRT – with 15-pin HDB15 connector located at bracket.
LCD – with 2.0mm 44-pin connector
* Super I/O: 1 PCI IDE – One 2.54mm 40-pin connector
1 FDC – with 2.54mm 34-pin connector
1 Parallel – Supports SPP/EPP/ECP mode with 2.0mm 26-pin connector
2 RS-232C – COM2 can be configured as RS-485 port.
1 IrDA port, IrDA 1.1 Compliant

Touch Screen uses 2.0mm 3-pin JST connector.

* Keyboard PS2, 6-pin mini-DIN connector
* Mouse: PS/2 compatible mouse port

* USB: 2 USB ports with 2.54mm 10-pin header
* Ethernet: 10/100Mbps with RJ-45 Connector (Located at Bracket)
* BIOS: AMI flash BIOS (256KB, including VGA/LCD BIOS). Provides utility program

to update new version of BIOS.
* RTC: Supports ACPI function with on-board battery and optional external battery

pack.
* Speaker: On-board buzzer and external speaker (with 4-pin 2.54mm header).
* H/W Monitoring: Hardware monitoring for CPU temperature, fan speed, and power voltage
* LED Indicators: Power LED and hard disk LED.
* BUS Drive Cap.: PCI – 6 TTL level loads maximum.
PC/104 – 8 TTL level loads maximum.
* Power Req.: +5V – 4.0A maximum and +12V – 0.6A maximum (Based on 333 MHz CPU)
* CE Design-In: Add EMI components to COM ports, Parallel port, CRT, USB, Keyboard,

and PS/2 mouse.
* Dimensions: Half size, 185 mm x 122 mm (7.28" x 4.80").

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AR-B1670 User’s Guide

7.PLACEMENT & DIMENSIONS

7.1 PLACEMENT

Unit: mil (1 inch = 25.4 mm = 1000 mil)

7-2

8.DIMENSIONS

AR-B1670 User’s Guide

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AR-B1670 User’s Guide

/or transmitter interrupt mode. (All of the

Wait for the buffer’s data to empty. Check the transmitter holding register (THRE, bit 5 of the

t register (TSRE, bit 6 of the address of offset+5) so that all

itter holding register (THRE, bit 5 of the

address of offset+5), and transmitter shift register (TSRE, bit 6 of the address of offset+5) so that all

9. PROGRAMMING RS-485 & INDEX

9.1 PROGRAMMING RS-485

The majority of the communicative operations of the RS-485 are the same as the RS-232. When the RS-485
proceeds with the transmission, which needs to control the DTR (TXC) signal, the installation steps are as follows:

Step 1:

Step 2:

Step 3:

Step 4:

(1) Initializing the COM port

Step 1:

Step 2:

NOTE:

(2) Send out one character (Transmit)

Step 1:

Step 2:

Step 3:

Step 4:

(3) Send out one block data (Transmit – the data can be more than two characters long)

Step 1:

Step 2:

Step 3:

Enable DTR (Data Terminal Relay)

Send out data

Wait for data to empty

Disable DTR

Initialize the COM port in the receiver interrupt mode, and
communication protocol buses of the RS-485 are the same.)

Disable DTR (Data Terminal Relay) the bit 0 of the address of offset+4 just sets to “0”.

Control the AR-B1670 CPU card’s DTR signal to enable/disable the RS-485’s TXC communication.

Enable the DTR signal, and the bit 0 of the address of offset+4 just sets to “1”.

Send out the data. (Write this character to the offset+0 of the current COM port address)

address of offset+5), and transmitter shif
sets are set to “0”.

Disable the DTR signal, and the bit 0 of the address of offset+4 sets to “0”

Enable the DTR signal, and the bit 0 of the address of offset+4 just sets to “1”.

Send out the data. (Write all data to the offset+0 of the current COM port address)

Wait for the buffer’s data to empty. Check the transm

sets are set to “0”.

Step 4:

Disabled DTR signal, and the bit 0 of the address of offset+4 sets to “0”

(4) Receive data

The RS-485’s operation of receiving data is the same as RS-232’s.

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(5) Basic Language Example

a.) Initial 86C450 UART

10 OPEN “COM1:9600,m,8,1”AS #1 LEN=1
20 REM Reset DTR
30 OUT &H3FC, (INP(%H3FC) AND &HFA)
40 RETURN

b.) Send out one character to COM1

10 REM Enable transmitters by setting DTR ON
20 OUT &H3FC, (INP (&H3FC) OR &H01)
30 REM Send out one character
40 PRINT #1, OUTCHR$
50 REM Check transmitter holding register and shift register
60 IF ((INP & H3FD) AND &H60) >0) THEN 60
70 REM Disable transmitters by resetting DTR
80 OUT &H3FC, (INP (&H3FC) AND &HEF)
90 RETURN

c.) Receive one character from COM1

10 REM Check COM1: receiver buffer
20 IF LOF (1)<256 THEN 70
30 REM Receiver buffer is empty
40 INPSTR$=””
50 RETURN
60 REM Read one character from COM1: buffer
70 INPSTR$=INPUT$(1, #1)
80 RETURN

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11. CONNECTORS AND JUMPERS INDEX

Name Function Page

CN1 Parallel port connector 2-6
CN2 FDD port connector 3-5
CN3 Hard Disk (IDE) connector 3-2
CN4 Power connector 3-9
CN5 RS-232 connector COM-B 3-7
CN6 Ethernet RJ-45 Connector 3-8
CN7 40 pin PC/104 connector bus C & D 2-3
CN8 64 pin PC/104 connector bus A & B 3-3

CN9 6 Pin mini keyboard connector 2-3
CN10 PS2 Mouse/Keyboard 3-5
CN11 LCD Connector 4-2

DB1 CRT connector 3-1

DB2 RS-232 connector COM-A 2-8

J1 IR header 2-10
J2 HDD LED Header 3-9
J3 Touch Screen connector COM-B 3-8
J4 USB connector 2-11
J5 External Speaker Header 3-8
J6 External battery
J7 CPU Cooling Fan Power Connector 2-10

J8 Reset header 2-10
JP4 LCD Display Enable signal select 2-8
JP5 COM-B RS-232C/RS-485 Select
JP6 RS-485 Terminator Select 2-7
JP7 COM-B RS-485 Adapter select 2-7
JP9 System Base Clock 3-10

JP10 COM-A RS-485 Adapter select 3-6

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12.APPENDIX A. ADDRESS MAPPING

Memory Map:

MEMORY MAP ASSIGNMENT
0xA0000-0xBFFFF PCI bus
0xA0000-0xBFFFF Intel 82443BX Pentium(r) II Processor to

AGP Controller
0xA0000-0xBFFFF Chips And Technologies 69000
0xCC000-0xEFFFF PCI bus
0x8000000-0xFFFEFFFF PCI bus
0xEDE00000-0xEFEFFFFF Intel 82443BX Pentium(r) II Processor to

AGP Controller
0xE5C00000-0xE5CFFFFF Intel 82443BX Pentium(r) II Processor to

AGP Controller
0xE8000000-0xEBFFFFFF Intel 82443BX Pentium(r) II Processor to

AGP Controller
0xEE000000-0xEEFFFFFF Chips And Technologies 69000
0xEFFFFF00-0xEFFFFFFF Realtek RTL8139(A) PCI Fast Ethernet

Adapter
0x0000-0x9FBFF System board
0x9FC00-0x9FFFF System board
0xF0000-0xFFFFF System board
0x100000-0x7FFFFFF System board
0xFFFF0000-0xFFFFFFFF System board

AR-B1670 User’s Guide

13.APPENDIX B. INTERRUPT REQUEST (IRQ)

SETTING HARDWARE USING THE SETTING

01 PC/AT Enhanced PS/2 Keyboard (101/102-

Key)
02 N/A
03 Communications Port (COM2)
04 Communications Port (COM1)
05 N/A
06 Standard floppy disk controller
07
08 System CMOS/real time clock
09 N/A
10 Realtek RTL8139(A) PCI Fast Ethernet

Adapter
11 Intel 82371AB/EB PCI to USB Universal Host

Controller
12 Logitech PS/2 Port Mouse
13 Numeric data processor
14 Primary IDE Channel
15 N/A

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