SOYO Motherboard SY-6BA+ IV User manual

SY-6BA+ IV

Motherboard

****************************************************

Pentium

®

III, Pentium

®

II & Celeron

Processor supported

82440 BX AGP/PCI Motherboard

66 &100 MHz Front Side Bus supported

ATX Form Factor

****************************************************

User's Manual

SOYO™ SY-6BA+ IV

ii

Trademarks:

Soyo is the registered trademark of Soyo Computer Inc. All trademarks are the

properties of their owners.

Product Rights:

All names of the product and corporate mentioned in this publication are used for

identification purposes only. The registered trademarks and copyrights belong to

their respective companies.

Copyright Notice:

part of this manual may be reproduced, transmitted, transcribed, translated into any

other language, or stored in a retrieval system, in any form or by any means, such

as by electronic, mechanical, magnetic, optical, chemical, manual or otherwise,

without permission in writing from Soyo Computer Inc.

Disclaimer:

Soyo Computer Inc. makes no representations or warranties regarding the contents

of this manual. We reserve the right to amend the manual or revise the

specifications of the product described in it from time to time without obligation to

notify any person of such revision or amend. The information contained in this

manual is provided to our customers for general use. Customers should be aware

that the personal computer field is subject to many patents. All of our customers

should ensure that their use of our products does not infringe upon any patents. It is

the policy of Soyo Computer Inc. to respect the valid patent rights of third parties

and not to infringe upon or to cause others to infringe upon such rights.

Restricted Rights Legend:

Use, duplication, or disclosure by the Government is subject to restrictions set

forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer

Software clause at 252.277-7013.

About This Guide:

This Quick Start Guide can help system manufacturers and end users in setting up

and installing the Motherboard. Information in this guide has been carefully

checked for reliability; however, to the correctness of the contents there is no

guarantee given. The information in this document is subject to amend without

notice.

For further information, please visit our Web Site on the Internet. The address is

"http://www.soyo.com.tw".

Edition: August 1999

Version 1.0

6BA+ IV SERIAL

FC

C

Tested To Comply

With FCC Standards

FOR HOME OR OFFICE USE

POST CONSUMER

RECYCLED PAPER

100%

Table of Contents SY-6BA+ IV

iii

Table of Contents

CHAPTER 1 MOTHERBOARD DESCRIPTION .............................1

1-1 INTRODUCTION ..................................................................1

1-2 KEY FEATURES...................................................................1

1-3 HANDLING THE MOTHERBOARD.................................5

1-4 ELECTROSTATIC DISCHARGE PRECAUTIONS..........5

1-5 SY-6BA+ IV MOTHERBOARD LAYOUT........................6

1-6 SY-6BA+ IV MOTHERBOARD COMPONENTS............7

1-7 MICROPROCESSOR............................................................9

1-8 MEMORY...............................................................................9

1-9 CHIPSET ..............................................................................11

1-10 I/O INTERFACE CONTROLLER .....................................16

1-11 HARDWARE MONITOR...................................................18

1-12 WAKE ON LAN TECHNOLOGY .....................................18

CHAPTER 2 HARDWARE INSTALLATION..................................19

2-1 PREPARATIONS.................................................................19

2-2 UNPACKING THE MOTHERBOARD.............................20

2-3 INSTALLATION GUIDE....................................................21

2-3.1 CPU Fan Installation..................................................22

2-3.2 SDRAM Memory Module Installation.......................... 26

2-3.3 Motherboard Connector..............................................28

3-3.4 Jumper Setting............................................................43

2-3.5 CMOS Clearing (JP5)................................................. 45

2-3.6 Power On...................................................................46

2-3.7 Quick BIOS Setup.......................................................47

2-3.8 Troubleshooting at First Start .....................................50

2-3.9 Power Off................................................................... 51

CHAPTER 3 BIOS SETUP UTILITY ..............................................52

Table of Contents SY-6BA+ IV

iv

3-1 SOYO COMBO SETUP......................................................54

3-2 STANDARD CMOS SETUP..............................................61

3-3 BIOS FEATURES SETUP..................................................64

3-4 CHIPSET FEATURES SETUP...........................................69

3-5 POWER MANAGEMENT SETUP ...................................72

3-6 PNP/PCI CONFIGURATION SETUP...............................76

3-7 LOAD SETUP DEFAULTS ................................................79

3-8 INTEGRATED PERIPHERALS.........................................80

3-9 SUPERVISOR PASSWORD...............................................85

3-10 USER PASSWORD .............................................................86

3-11 IDE HDD AUTO DETECTION .........................................87

CHAPTER 4 DRIVERS INSTALLATION ........................................88

CHAPTER 5 THE ATA 66 DRIVER INSTALLATION...................94

Motherboard Description SY-6BA+ IV

1

Chapter 1

MOTHERBOARD DESCRIPTION

1-1 INTRODUCTION

The SY-6BA+ IV AGP/PCI Motherboard is a high-performance Slot 1

supported ATX form-factor system board. SY-6BA+ IV uses the VIA

Chipset technology and supports Slot 1 class processors. This

Motherboard is fully compatible with industry standards and adds many

technical enhancements.

1-2 KEY FEATURES

Ø CPU SUPPORT

The SY-6BA+ IV supports a wide range of INTEL CPUs:

n Intel Pentium III 450~600 MHz

n Intel Pentium II 233~450 MHz

n Intel Celeron 266~433 MHz

New released Intel Slot 1 CPUs will very likely be supported by the SY-

6BA+ IV as well.

Ø CPU SETTINGS

The SY-6BA+ IV provides the user with a very complete and convenient

CPU setting environment. The CPU settings are all adjusted through the

special SOYO COMBO page in the BIOS, therefore rendering the use of

jumpers obsolete.

n CPU FSB Frequency

The SY-6BA+ IV supports an incredible wide range of CPU FSB

frequency settings:

66, 75, 81, 83, 90, 95, 100, 105, 110, 112, 113, 115, 117, 118, 120, 122,

124, 126, 133, 135, 137, 138, 140, 142, 144, 150 and 155 MHz.

This ensures that the SY-6BA+ IV has an overwhelming overclocking

potential.

Motherboard Description SY-6BA+ IV

2

n CPU Multiplier

The SY-6BA+ IV supports a wide range of multipliers:

2.0x, 2.5x, 3.0x, 3.5x, 4.0x, 4.5x, 5.0x, 5.5x, 6.0x, 6.5x, 7.0x, 7.5x and

8.0x

n CPU Core Voltage

The CPU Core voltage is set automatically according to CPU needs. The

SY-6BA+ IV supports an advanced Core voltage feature; it can be

adjusted through the BIOS directly without setting jumper. In normal

mode the voltage will be standard, apart from that the user can specify

increments of 2.5%, 5%, 7.5% and 10% on top of the standard voltage.

This will provide the CPU with the power it needs for overclocking.

Ø EXPANDABILITY

The SY-6BA+ IV provides all the standard expansion slots, and many

more additional expansion features:

u Expansion slots

n 1 x 32-bit bus mastering AGP slot

n 5 x 32-bit bus mastering PCI slots

n 2 x 16-bit ISA slots

u Enhanced IO

n Floppy disk controller

n 2x EIDE controllers with support for up to 4 Ultra DMA 33/66

devices

n Standard/EPP/ECP parallel port

n 2x 16550 compatible serial ports

n IrDA compatible infrared port

n 2x USB (Universal Serial Bus) connectors

n PS/2 mouse connector

n PS/2 keyboard connector

Ø ADVANCED FUNCTIONS

The SY-6BA+ IV supports advanced functions such as:

n ATA 66 IDE Ports

In addition to the original two ATA33 (Ultra DMA/33) IDE ports, the

SY-6BA+ IV supports two ATA66 (Ultra DMA/66) IDE ports that is

Motherboard Description SY-6BA+ IV

3

capable of transferring data up to 66 Mbytes/sec (IDE DMA Mode 4).

n Wake-On-LAN

Supports Wake-On-LAN (Some advanced network cards can

wake the system up over the network, the WOL connector is

provided by the SY-6BA+ IV to support this function).

n Multiple boot

The SY-6BA+ IV supports booting from devices such as CD-ROM.

n Power on by modem or alarm

If the SY-6BA+ IV system is in suspend mode, it can be switched

back on through the modem or RTC alarm through this function. This

opens a lot of possibilities, such as remote access that switches the

system on only after the modem receives a call.

Ø FAIL SAFE

The SY-6BA+ IV comes with added functionality to make managing the

system easy and safe

u Hardware Monitor

The integrated Winbond Hardware Monitor IC and Hardware doctor

software enables the user the monitor system voltages, temperatures and

FAN speeds. This makes sure that the user is full control of the system

u Power Failure Resume Function

This function can be set in the BIOS, and determines whether the system

will automatically turn on again after a power failure. This function is

indispensable for server systems that need to always be on line.

u 5VSB Indicator

This green LED gives an indication of the presence of the 5V Standby

voltage. This voltage is always fed into the motherboard and is used for

functions such as WOL.

Ø NORTON SOFTWARE PACK

n Antivirus

n Ghost

n Virtual Drive

Motherboard Description SY-6BA+ IV

4

Ø COMPLIANCE

The SY-6BA+ IV complies with all important industry standards. The

following underlines the reliability of the SY-6BA+ IV, a motherboard to

trust.

n Year 2000 compliant

n PC98 compliant

n FCC/CE complaint

Ø USER FRIENDLY

n SOYO Combo Setup

n Jumperless design

n You can set up the following options trough the BIOS setting

 CPU FSB frequency

 CPU multiplier

 CPU Vcore voltage

 PCI clock

 AGP Clock

 SDRAM Clock

Motherboard Description SY-6BA+ IV

5

1-3 HANDLING THE MOTHERBOARD

To avoid damage to your Motherboard, follow these simple rules while

unpacking:

Ø Before handling the Motherboard, ground yourself by grasping an

unpainted portion of the system's metal chassis.

Ø Remove the Motherboard from its anti-static packaging. Hold the

Motherboard by the edges and avoid touching its components.

Ø Check the Motherboard for damage. If any chip appears loose, press

carefully to seat it firmly in its socket.

Warning: Do not apply power if the Motherboard appears

damaged. If there is damage to the board, contact your dealer

immediately.

1-4 ELECTROSTATIC DISCHARGE PRECAUTIONS

Make sure to ground yourself before handling the Motherboard or other

system components. Electrostatic discharge can easily damage the

components. Note that you must take special precautions when handling

the Motherboard in dry or air-conditioned environment.

To protect your equipment from electrostatic discharge, take the following

precautions:

Ø Do not remove the anti-static packaging until you are ready to install.

Ø Ground yourself before removing any system component from its

protective anti-static packaging. (To ground yourself, grasp the expansion

slot covers or other unpainted portions of the computer chassis.)

Ø Frequently ground yourself while working or use a grounding strap.

Ø Handle the Motherboard by its edges and avoid touching its

components.

Motherboard Description SY-6BA+ IV

6

1-5 SY-6BA+ IV MOTHERBOARD LAYOUT

Back Panel SY-6BA+ IV Platform

COM 1

COM 2

PRT

USB 1

USB 2

PS/2 KB

Connector

PS/2 Mouse

Connector

JP10

PCI Slot #1

PCI Slot #2

PCI Slot #3

PCI Slot #4

PCI Slot #5

ISA Slot #1

ISA Slot #2

JP1

JP8

LED1

3V

Lithium

Battery

®

SB-LINK

(PC PCI)

®

IR1

1

5

CPUFAN

PWRFAN

ITE 8671

I/O Chipset

IDE 1

IDE4

IDE 2

IDE 3

1

FDC

®

AGP Slot

ATX

Power

3

1

Flash BIOS

1

3

TM

Slot 1

Intel

82371 EB

DIMM 1

DIMM 2

DIMM 3

DIMM 4

8 2 8 A C

Hardware

Monitoring

Winbond

W83782M

Intel

82443 BX

1

3

1

CHAFAN

Speaker

Keylock

Power

LED

Tubro

LED

HDD

LED

_

+

_

+

_

+

_

+

Reset

PWRBT

JP5

Jumper

CMOS Clear

JP44

WOL

Header

ATA 33

ATA 66

Motherboard Description SY-6BA+ IV

7

1-6 SY-6BA+ IV MOTHERBOARD COMPONENTS

®

1

®

8 2 8 A C

A

B

C

D

E

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

AA

AB

F

Motherboard Description SY-6BA+ IV

8

A ATX Power Supply Connector

B Slot 1 Connector

C Power On by Keyboard Jumper

D CPU multiplier release Jumper

E Intel 82440 BX PCI/AGP Set

F CPU Cooling Fan Connector

G Power Cooling Fan Connector

H DIMM Bank

I 5V Stand-by indicator LED

J Floppy Disk Drive (FDD) Port

K Bus Mastering E-IDE/ATAPI Ports

L 32-bit AGP Slot

M PCI Audio Card Header

N High Point PHT 366 ATA66 Controller

O 32-bit PCI Mastering Slots

P 3V Lithium Battery

Q CMOS Clear Jumper

R Intel 82371 EB PIIX4 Chip

S Front panel connectors

T Chassis Cooling Fan Connector

U External Suspend Button Header

V 16-bit ISA Slots

W Winboand W83782M hardware monitoring

X Flash BIOS Chip

Y Wake-On-LAN (WOL) Header

Z Serial Infrared (IrDA) Device Header

AA ITE 8671 super I/O Controller

AB Back panel Connectors

Motherboard Description SY-6BA+ IV

9

1-7 MICROPROCESSOR

The motherboard supports a single Slot 1 processor. The processor’s VID

pins automatically program the voltage regulator on the motherboard to

the required processor voltage. In addition, the front side bus speed (66

MHz and 100 MHz) is automatically selected. The motherboard supports

all current Slot 1 processor speeds, voltages, and bus frequencies.

1-7.1 Microprocessor Packaging

The processor is packaged in a Single Edge Contact Cartridge (SECC or

SECC2) or Single Edge Processor Package (S.E.P.P). The cartridge

includes the processor core, second-level cache subsystem, thermal plate,

and back cover.

The processor connects to the motherboard through the Slot1 connector, a

242-pin edge connector. When mounted in Slot1, the processor is secured

by a retention mechanism attached to the motherboard. A passive heatsink

is stabilized by the heatsink supports.

1-7.2 Second Level Cache

The second-level cache is located on the substrate of the CPU package.

The cache includes 0KB/128KB (Celeron) or 512 KB (PII/PIII) of

synchronous pipelined burst static RAM. All supported onboard memory

can be cached.

1-7.3 Microprocessor Upgrades

The motherboard can be upgraded with Slot 1 processors that run at higher

speeds. When upgrading the processor, use the BIOS configuration mode

to change the processor speed.

1-8 MEMORY

1-8.1 Main Memory

The motherboard has four DIMM sockets. SDRAM can be installed in one,

Motherboard Description SY-6BA+ IV

10

two, three, or four sockets. Using the serial presence detect (SPD) data

structure, programmed into an E²PROM on the DIMM, the BIOS can

determine the SDRAM’s size and speed. Minimum DIMM memory size is

8 MB; maximum DIMM memory size is 256MB. Memory size and speed

can vary between sockets.

The motherboard supports the following memory features:

l 168-pin DIMMs with gold-plated contacts

l 66/100/133 MHz SDRAM

l Non-ECC (64-bit) and ECC (72-bit) memory

l 3.3V memory only

l Supports 8/16/32/64/128/256 MB DIMM Modules

l Support unbuffered or registered single- or double-sided DIMMs

¿

Note

Slot 1 processors with 100 MHz front-side bus should be paired only with

100 MHz SDRAM. Processors with 66 MHz front side bus can be paired

with either 66 MHz or 100 MHz SDRAM.

1-8.2 SDRAM

SDRAM improves memory performance through memory access that is

synchronous with the front-side bus clock. Burst transfer rates at x-1-1-1

timing can be achieved using SDRAM, while asynchronous memory

subsystem are typically limited at x-2-2-2 transfer rates.

¿

Note

All memory components and DIMMs used with the SY-6BA+ IV

motherboard must comply with the PC SDRAM specifications. These

include: the PC SDRAM Specification (memory component specific), the

PC Unbuffered DIMM Specification, and the PC Serial Presence Detect

Specification.

Motherboard Description SY-6BA+ IV

11

1-8.3 ECC Memory

ECC memory detects multiple-bit errors and corrects single-bit errors.

When ECC memory is installed, the BIOS supports both ECC and non-

ECC mode. ECC mode is enabled in the Setup program. The BIOS

automatically detects if ECC memory is installed and provides the Setup

option for selecting ECC mode. If any non-ECC memory is installed, the

Setup option for ECC configuration does not appear and ECC operation is

not available.

1-9 CHIPSET

The Intel 440BX PCIset includes a Host-PCI bridge integrated with both

an optimized DRM controller and an A.G.P. interface. The I/O subsystem

of the 440BX is based on the PIIX4E, which is a highly integrated PCI-

ISA/IDE Accelerator Bridge. This chipset consists of the Intel 82443BX

PCI/A.G.P. controller (PAC) and the Intel 82371EB PCI/ISA IDE

Xcelerator (PIIX4E) bridge chip.

1-9.1 Intel 82443Bx PCI/A.G.P. Controller (PAC)

The PAC provides bus-control signals, address paths, and data paths for

transfers between the processor’s host bus, PCI bus, the A.G.P., and main

memory. The PAC features:

l Processor interface control

Ø Support for processor host bus frequencies of 100 MHz or 66MHz

Ø 32-bit addressing

Ø Desktop Optimized GTL+ compliant host bus interface

l Integrated DRAM controller, with support for:

Ø +3.3 V only DIMM DRAM configurations

Ø Up to four double sided DIMMs

Ø 100-MHz or 66MHz SDRAM

Ø DIMM serial presence detect via SMBus interface

Ø 16-and 64-Mbit devices with 2K, 4K, and 8K page sizes

Ø SDRAM 64-bit data interface with ECC support

Ø Symmetrical and asymmetrical DRAM addressing

Motherboard Description SY-6BA+ IV

12

l A.G.P. interface

Ø Complies with the A.G.P. specification

Ø Support for +3.3 V A.G.P.-66/ devices

Ø Synchronous coupling to the host-bus frequency

l PCI bus interface

Ø Complies with the PCI specification

Ø Asynchronous coupling to the host-bus frequency

Ø PCI parity generation support

Ø Data streaming supports from PCI-to-DRAM

Ø Support for five PCI bus masters in addition to the host and PCI-

to-ISA I/O bridge

Ø Support for concurrent host, A.G.P., and PCI transactions to main

memory

l Data buffering

Ø DRAM write buffer with read-around-write capability

Ø Dedicated host-to-DRAM, PCI-to-DRAM, and PCI-A.G.P.-to-

DRAM read buffers

Ø A.G.P. dedicated inbound/outbound FIFOs (133/66 MHz), used for

temporary data storage

l Power management functions

Ø Support for system suspend/resume (DRAM and power-on

suspend)

Ø Compliant with ACPI power management

l SMBus support for desktop management functions

l Support for system management mode (SMM)

1-9.2 Intel 82371EB PCI ISA IDE Xcelerator (PIIX4E)

The PIIX4E is a multifunction PCI device implementing the PCI-to-ISA

bridge, PCI IDE functionality, USB host/hub functionality, and enhanced

power management. The PIIX4E features:

l Multifunction PCI-to-ISA bridge

Ø Support for the PCI bus at 33 MHz

Motherboard Description SY-6BA+ IV

13

Ø Complies with the PCI specification

Ø Full ISA bus support

l USB controller

Ø Two USB ports

Ø Support for legacy keyboard and mouse

Ø Support for UHCI interface

l Integrated dual-channel enhanced IDE interface

Ø Support for up to four IDE devices

Ø PIO mode 4 transfers at up to 16 MB/sec

Ø Support for Ultra DMA/33 synchronous DMA mode transfers up

to 33 MB/sec

Ø Bus master mode with an 8 x 32-bit buffer for bus master PCI IDE

burst transfers

l Enhanced DMA controller

Ø Two 8237-based JDMA controllers

Ø Supports for PCI DMA with three PC/PCI channels and distributed

DMA protocols

l Interrupt controller based on 82C59

Ø Support for 15 interrupts

Ø Programmable for edge/level sensitivity

l Power management logic

Ø Sleep/resume logic

Ø Support for wake-on-modem, Wake on LAN technology, and

w3ake on PME

Ø Support for ACPI

l Real-Time Clock

Ø 256-byte battery-backed CMOS SRAM

Ø Includes date alarm

l 16-bit counters/timers based on 82C54

1-9.3 Accelerated Graphics Port (A.G.P.)

A.G.P. is a high-performance bus for graphics-intensive applications, such

as 3D applications. A.G.P., while based on the PCI Local Bus

Motherboard Description SY-6BA+ IV

14

Specifications, Rev 2.1, is independent of the PCI bus and is intended for

exclusive use with graphical display devices. A.G.P. overcomes certain

limitations of the PCI bus related to handling a large amount of graphics

data with the following features:

l Pipelined memory read and write operations that hide memory access

latency

l Demultiplexing of address and data on the bus for near 100 percent

bus efficiency

l AC timing for 133 MHz data transfer rates, allowing real data

throughput in excess of 500 MB/sec

1-9.4 Universal Serial Bus (USB)

The motherboard has two USB ports; one USB peripheral can be

connected to each port. For more than two USB devices, an external hub

can be connected to either port. The motherboard fully supports the

universal host controller interface (UHCI) and used UHCI-compatible

software drivers.

Specification USB features include:

l Self-identifying peripherals that can be plugged in while the

computer is running

l Automatic mapping of function to driver and configuration

l Support for isochronous and asynchronous transfer types over the

same set of wires

l Support for up to 127 physical devices

l Guaranteed bandwidth and low latencies appropriate for telephony,

audio, and other applications

l Error-handling and fault-recovery mechanisms built into the protocol

¿

Note

Computer systems that have an unshielded cable attached to a USB port

may not meet FCC Class B requirements, even if no device or a low-speed

USB device is attached to the cable. Use shielded cable that meets the

requirements for a full-speed USB device.

Motherboard Description SY-6BA+ IV

15

1-9.5 IDE Support

The motherboard has two independent ATA 33 and two independent ATA

66 bus-mastering PCI IDE interfaces. These interfaces support PIO Mode3,

PIO Mode 4, ATAPI devices (e.g., CD-ROM), and Ultra DMA/33 (IDE1,

IDE2) or Ultra DMA/66 (IDE3, IDE4) synchronous-DMA mode transfers.

See “IDE Device installation” (on page 29) for more information. The

BIOS supports logical block addressing (LBA) and extended cylinder head

sector (ECHS) translation modes. The BIOS automatically detects the IDE

device transfer rate and translation mode.

Programmed I/O operations usually require a substantial amount of

processor bandwidth. However, in multitasking operating systems, the

bandwidth freed by bus mastering IDE can be devoted to other tasks while

disk transfers are occurring.

The motherboard also supports laser servo (LS-120) drives. LS-120

technology allows the user to perform read/write operations to LS-120

(120MB) and conventional 1.44MB and 720KB diskettes. An optical

servo system is used to precisely position a dual-gap head to access the

diskett’s 2,490 tracks per inch (tpi) containing up to 120 MB of data

storage. A conventional diskette uses 135 tpi for 1.44 MB of data storage.

LS-120 drivers are ATAPI-compatible and connect to the motherboard’ s

IDE interface. (LS-120 drives are also available with SCJSI and parallel

port interfaces.) Some versions of Windows 95 and Windows NT

operating systems recognize the LS-120 drive as a bootable device in both

120 MB and 1.44 MB mode.

Connection of an LS-120 drive and a standard 3.5-inch diskette drive is

allowed. The LS-120 drive can be configured as a boot device if selected

as Drive A in the BIOS setup program.

¿

Note

If you connect at LS-120 drive to an IDE connector and configure it as

the :boot: drive and configure a standard 3.5-inch diskette drive as a “B”

drive, the standard diskette drive is not seen by the operating system.

When the LS-120 drive is configured as the “boot: device, the system will

Motherboard Description SY-6BA+ IV

16

recognize it as both the A and B drive

1-9.6 Real-Time Clock, CMOS SRAM, and Battery

The real-time clock is compatible with DS1287 and MC146818

components. The clock provides a time-of-day clock and a multicentury

calendar with alarm features and century rollover. The real-time clock

supports 256 bytes of battery-backed CMOS SRAM in two banks that are

reserved for BIOS use.

The time, date, and CMOS values can be specified in the Setup program.

The CMOS values can be returned to their defaults by using the Setup

program.

1-10 I/O INTERFACE CONTROLLER

The motherboard uses the ITE 8671 super I/O controller which features:

l Single diskette drive interface

l ISA Plug-and-Play compatible register set

l Two serial ports

l FIFO supports on both serial and diskette interfaces

l One parallel port with Extended Capabilities Port (ECP) and

Enhanced Parallel Port (EPP) support

l PS/2 style mouse and keyboard interfaces

l PCI PME interface

l Vialigent auto power management, including:

Ø Shadowed write-only registers for ACPI compliance

Ø Programmable wake-up event interface

The Setup program provides configuration option for the I/O controller.

1-10.1 Serial Ports

The NS16C5450-compatible UARTs support data transfers at speeds up to

115.2 Kbits/sec with BIOS support.

1-10.2 Parallel Port

In the Setup program, there are four options for parallel port operation:

l Compatible (standard mode)

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