Supermicro MDB-P4SPA+-O Datasheet

Brand: Supermicro

Model: MDB-P4SPA+-O

Category: Motherboards

Type: Datasheet

This manual is also suitable for

MDB-P4SPE-O

SUPER P4SPA+

SUPER P4SPE

USER’S MANUAL

Revision 1.1a

SUPER

The information in this User’s Manual has been carefully reviewed and is believed to be

accurate. The vendor assumes no responsibility for any inaccuracies that may be contained

in this document, makes no commitment to update or to keep current the information in this

manual, or to notify any person or organization of the updates.

Please Note: For the

most up-to-date version of this manual, please see our web site at

www.supermicro.com.

SUPERMICRO COMPUTER reserves the right to make changes to the product described in

this manual at any time and without notice. This product, including software, if any, and

documentation may not, in whole or in part, be copied, photocopied, reproduced, translated or

reduced to any medium or machine without prior written consent.

IN NO EVENT WILL SUPERMICRO COMPUTER BE LIABLE FOR DIRECT, INDIRECT,

SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR

INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE

POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, THE VENDOR SHALL NOT HAVE

LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE

PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING,

INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.

Any disputes arising between manufacturer and customer shall be governed by the laws of

Santa Clara County in the State of California, USA. The State of California, County of Santa

Clara shall be the exclusive venue for the resolution of any such disputes. Supermicro's total

liability for all claims will not exceed the price paid for the hardware product.

Unless you request and receive written permission from SUPER MICRO COMPUTER, you

may not copy any part of this document.

Information in this document is subject to change without notice. Other products and

companies referred to herein are trademarks or registered trademarks of their respective

companies or mark holders.

Printed in the United States of America

Preface

About This Manual

This manual is written for system integrators, PC technicians and

knowledgeable PC users. It provides information for the installation and use

of the SUPER P4SPA+/P4SPE motherboard. The P4SPA+/P4SPE supports

single Intel Pentium

4 478-pin, 0.13 micron processors up to 3.06 GHz at

a system bus speed of 800/533/400 MH, or Intel Celeron 478-pin, 0.13 mi-

cron processors up to 2.4 GHz at a system bus speed of 400 MHz. Pentium

4 processors are housed in a 478-pin micro PGA (Plastic Grid Array) pack-

age. Please refer to the motherboard specifications pages on our web site

(http://www.supermicro.com/Product_page/product-m.htm) for updates on

supported processors. This product is intended to be professionally in-

stalled.

Manual Organization

Chapter 1 includes a checklist of what should be included in your

mainboard box, describes the features, specifications and performance of

the P4SPA+/P4SPE mainboard and provides detailed information about the

chipset.

Chapter 2 begins with instructions on handling static-sensitive devices.

Read this chapter when installing the processor and DDR memory modules

and when mounting the mainboard in the chassis. Also refer to this chapter

to connect the floppy and hard disk drives, the IDE interfaces, the parallel

and serial ports, the mouse and keyboard and the twisted wires for the

power supply, the reset button, the keylock/power LED and the speaker.

If you encounter any problems, see Chapter 3, which describes trouble-

shooting procedures for the video, the memory and the setup configuration

stored in CMOS. For quick reference, a general FAQ (Frequently Asked

Questions) section is provided. Instructions are also included for contact-

ing technical support. In addition, you can visit our web site at

www.supermicro.com/techsupport.htm for more detailed information.

Chapter 4 includes an introduction to BIOS and provides detailed information

on running the CMOS Setup utility.

Appendix A provides BIOS POST Codes.

Appendix B lists BIOS POST Messages.

iii

Preface

SUPER P4SPA+/P4SPE User’s Manual

Preface

About This Manual ...................................................................................................... iii

Manual Organization ................................................................................................... iii

Chapter 1: Introduction

1-1 Overview......................................................................................................... 1-1

Checklist .................................................................................................... 1-1

Contacting Supermicro............................................................................ 1-2

SUPER P4SPA+/P4SPE Image................................................................. 1-3

SUPER P4SPA+/ P4SPE Layout ............................................................. 1-4

SUPER P4SPA+/P4SPE Quick Reference.............................................. 1-5

E7205 Chipset: System Block Diagram ................................................. 1-6

Motherboard Features ............................................................................ 1-7

1-2 Chipset Overview........................................................................................... 1-9

1-3 PC Health Monitoring.................................................................................... 1-10

1-4 Power Configuration Settings .................................................................... 1-11

1-5 Power Supply ............................................................................................... 1-13

1-6 Super I/O......................................................................................................... 1-14

Chapter 2: Installation

2-1 Static-Sensitive Devices ............................................................................... 2-1

2-2 Processor and Heatsink Installation............................................................ 2-2

2-3 Mounting the Motherboard in the Chassis ................................................. 2-4

2-4 Installing DDR Memory ................................................................................... 2-5

2-5 I/O Port/Front Control Panel Connector Locations.................................... 2-7

2-6 Connecting Cables ......................................................................................... 2-8

Power Supply Connectors ..................................................................... 2-8

IR Connector.............................................................................................. 2-8

PW_ON Connector ................................................................................... 2-8

Reset Connector ....................................................................................... 2-9

IDE/SATA LED .......................................................................................... 2-9

Power_LED Connector............................................................................. 2-9

Keylock Connector .................................................................................. 2-9

Speaker Connector.................................................................................. 2-9

Serial Ports ............................................................................................. 2-10

CD Header............................................................................................... 2-10

Table of Contents

Fan Headers........................................................................................... 2-10

Chassis Intrusion ................................................................................... 2-10

ATX PS/2 Keyboard/Mouse Ports ....................................................... 2-11

Universal Serial Bus (USB).................................................................. 2-11

Wake-On-LAN ......................................................................................... 2-11

Wake-On-Ring ......................................................................................... 2-12

Overheat LED .......................................................................................... 2-12

AC'97 Output ...........................................................................................2-12

2-7 Jumper Settings............................................................................................ 2-13

Explanation of Jumpers ........................................................................ 2-13

CMOS Clear............................................................................................. 2-13

USB Wake-Up.......................................................................................... 2-14

Watch Dog Enable/Disable ....................................................................2-14

Front Side Bus Speed ........................................................................... 2-14

Keyboard Wake-Up................................................................................. 2-15

Power On................................................................................................. 2-15

Chassis/Overheat Fan Select............................................................... 2-15

2-8 Game Port, Parallel Port, Floppy/Hard Drive and AGP Connections ... 2-16

Game Port Connector............................................................................ 2-16

Parallel Port Connector ......................................................................... 2-16

Floppy Connector................................................................................... 2-17

IDE Connectors ...................................................................................... 2-17

8xAGP/X4AGP Slot.................................................................................2-18

2-9 Installing Software ....................................................................................... 2-19

SuperO Doctor III .................................................................................... 2-20

Chapter 3: Troubleshooting

3-1 Troubleshooting Procedures ........................................................................ 3-1

Before Power On .................................................................................... 3-1

No Power .................................................................................................. 3-1

No Video ................................................................................................... 3-1

Memory Errors.......................................................................................... 3-2

Losing the System’s Setup Configuration ........................................... 3-2

3-2 Technical Support Procedures .................................................................... 3-2

3-3 Frequently Asked Questions........................................................................ 3-3

3-4 Returning Merchandise for Service............................................................ 3-6

Chapter 4: BIOS

4-1 Introduction....................................................................................................... 4-1

Table of Contents

4-2 Running Setup.................................................................................................. 4-2

4-3 Main BIOS Setup.............................................................................................. 4-2

Main BIOS Setup Menu ........................................................................... 4-3

4-4 Advanced BIOS Setup.................................................................................... 4-5

4-4.1 Advanced BIOS Features............................................................ 4-5

4-4.2 Advanced Chipset Control........................................................... 4-7

4-4.3 I/O Device Configuration .............................................................. 4-9

4-4.4 PnP Configuration........................................................................ 4-11

4-4.5 Hardware Monitors ..................................................................... 4-12

4-4.6 Processor & Clock Options ....................................................... 4-13

4-5 Security........................................................................................................... 4-14

4-6 Boot ................................................................................................................. 4-15

4-7 Exit ................................................................................................................... 4-17

Appendices:

Appendix A: BIOS POST Messages ..................................................................... A-1

Appendix B: BIOS POST Codes .............................................................................B-1

SUPER P4SPA+/P4SPE User’s Manual

Chapter 1: Introduction

1-1

Chapter 1

Introduction

1-1 Overview

Checklist

Congratulations on purchasing your computer motherboard from an ac-

knowledged leader in the industry. Supermicro boards are designed with

the utmost attention to detail to provide you with the highest standards in

quality and performance.

Please check that the following items have all been included with your

motherboard. If anything listed here is damaged or missing, contact your

retailer.

All Included with Retail Box Only

One (1) Supermicro Mainboard

Two (2) SATA66/100 ribbon cables

One (1) COM port cable with bracket

One (1) IDE cable

One (1) floppy drive ribbon cable

One (1) I/O shield

One (1) Supermicro CD or diskettes containing drivers and utilities

One (1) User's/BIOS Manual

1-2

SUPER P4SPA+/P4SPE User’s Manual

Contacting Supermicro

Headquarters

Address: SuperMicro Computer, Inc.

980 Rock Ave.

San Jose, CA 95131 U.S.A.

Tel: +1 (408) 503-8000

Fax: +1 (408) 503-8008

Email: [email protected] (General Information)

[email protected] (Technical Support)

Web Site: www.supermicro.com

Europe

Address: SuperMicro Computer B.V.

Het Sterrenbeeld 28, 5215 ML

's-Hertogenbosch, The Netherlands

Tel: +31 (0) 73-6400390

Fax: +31 (0) 73-6416525

Email: [email protected] (General Information)

[email protected] (Technical Support)

[email protected] (Customer Support)

Asia-Pacific

Address: SuperMicro, Taiwan

D5, 4F, No. 16 Chien-Ba Road

Chung-Ho 235, Taipei Hsien, Taiwan, R.O.C.

Tel: +886-(2) 8226-3990

Fax: +886-(2) 8226-3991

Web Site: www.supermicro.com.tw

Technical Support:

Email: su[email protected]

Tel: 886-2-8226-3990, ext.132 or 139

Chapter 1: Introduction

1-3

Figure 1-1. SUPER P4SPA+ Image

SUPER P4SPA+/P4SPE

*Note: the only difference between the P4SPE and P4SPA+ is that the

P4SPA+ has an onboard VGA Connector and the P4SPE does not.

1-4

SUPER P4SPA+/P4SPE User’s Manual

Figure 1-3. Motherboard Layout

(not drawn to scale)

UPER P4SPA+/P4SPE

See Chapter 2 for detailed information on jumpers, I/O ports and JF1front

panel connections.

+12V Power

ATX Power Connector

Keyboard/

Mouse

JPUSB

COM1

LINE

OH FAN

M IC

LINE

OUT

CPU

478 PGA

GMCH

AGP 8x (1.5v)/4X

PCI 1

PCI 2

PCI 3

PCI 4

PCI 5

AUX

ICH5

VGA

BATTERY

BIOS

JF1

JP1, JP20

IDE #1

DIMM2

DIMM1

IDE #2

CPU FAN

JP4

J18

J17

WOL

DIMM4

DIMM3

JPWAKE

JP2

JP3

PIN1

SUPER IO

COM2

JWOR

PIN1

1394/1 1394/2

PIN1

FLOPPY

CH/FAN1

SATA

USB6/7

JL1

*Note: the only difference between the P4SPE and P4SPA+ is that the

P4SPA+ has an onboard VGA Connector and the P4SPE does not.

Jumpers not indicated are for test purposes only.

GAME HEADER

Parallel Port

USB 0/1

USB2/3/4/5

LAN PORT

OHLED

JOH1

Chapter 1: Introduction

1-5

P4SPA+/P4SPE Quick Reference

Jumpers Description Default Setting

JBT1 CMOS Clear See Section 2-7

JP1 Overheat Fan Force-On Open (Disabled)

JP2, JP3 FSB Speed Pins 1-2 (Auto)

JP4 Watch Dog Pins 2-3 (NMI)

JP20 Force Power-On Open (Disabled)

JPUSB USB Wake Up (USB0/1) Pins 1-2 (Disabled)

JPWAKE KB/Mouse Wake-Up Pins 1-2 (Disabled)

Connectors Description

AUX Auxiliary Port Connector

CD1 Audio CD Input (large connector)

COM1 COM Port/Serial Port 1 Connector

COM2 COM Header/Serial Port 2 Header

Chassis Fan1 Chassis Fan Header

CPU Fan Processor Fan Header

OH Fan Overheat Fan Header

DIMM1/2/3/4 Memory (DIMM) Slots (1 through 4)

Ethernet Gigabit LAN (Ethernet Port)

Floppy Connector(1)Floppy Disk Connector

Game Port Game Port

IDE(2) 2 IDE Connectors

SATA 2 SATA Headers

J1 PS/2 Keyboard/Mouse

J4 Parallel Printer Port

J7 ATX Power Connector

J9 12V Power Supply

JF1 Front Control Panel

JL1 Chassis Intrusion Header

JOH1 Overheat LED Header

JWOR Wake-On-Ring Header

LINE IN Audio In Connector

LINE OUT Audio Out (Speaker) Connector

MIC Microphone Input

USB 0/1/2/3/4/5/6/7 Universal Serial Ports 0-7

VGA Video/Graphic Connector

WOL Wake-On-LAN

1394/1, 1394/2 IE Connector -Firewire (*Optional)

*Note: the only difference between the P4SPE and P4SPA+ is that the

P4SPA+ has an onboard VGA Connector and the P4SPE does not.

1-6

SUPER P4SPA+/P4SPE User’s Manual

Figure 1-3. 865G/865PE Springdale Chipset:

System Block Diagram

Note: This is a general block diagram and may not exactly

represent the features on your motherboard. See the follow-

ing pages for the actual specifications of each motherboard.

Processor

GMCH

ICH5

SIO

Flash

BIOS

PCI Bus

LPC interface

Channel A

Channel B

SystemBus

Hub Interface

AGP 8X/4X

CSA LAN

266MB/s

2.1GB/s

2.1GB/s-3.2GB/s

400/533/800 MHz

DDR

POWER MANAGEMENT

LAN CONN/ASF

SYSTEM MANAGEMENT

SMBus 2.0/i

5 PCI Masters

TPM

UBS 2.0-8 PORTS

GPIO

2 SATA PORTS

AC"97 CODEC

2 ATA/100 PORTS

Chapter 1: Introduction

1-7

Motherboard Features

CPU ! Latest CPU technology!

• Single Pentium

4 478-pin, 0.13 micron processors up to 3.06 GHz(at

800/533/400 MHz FSB) or Intel Celeron 478-pin, 0.13 micron processors

up to 2.4 GHz (at 400 MHz FSB).

Note: Refer to the motherboard specifications pages on our web site (http://

www.supermicro.com/Product_page/product-m.htm) for updates on supported processors.

Memory ! Latest memory technology!

• Dual/Single Channel DDR up to 4 GB of two-way interleaved or non-

interleaved non-ECC DDR-400/333/266 SDRAM in 4 DIMMS

Note: See Section 2-4 for details.

Chipset ! Latest Intel chipset technology!

• Intel Springdale 865G (P4SPA+), 865PE (P4SPE)

Expansion Slots

• Five 32-bit, 33 MHz PCI slots (5V)

• One AGP8x/X4 slot (1.5V)

BIOS

• 4 Mb Firmware Hub AwardBIOS

Flash BIOS

• APM 1.2, DMI 2.3, PCI 2.2, ACPI 1.0, Plug and Play (PnP)

PC Health Monitoring

• Eight onboard voltage monitors for CPU core, +3.3V, +3.3V standby,

+5V, +5V standby, Vbat (battery voltage) and ±12V

• Fan status monitor with firmware/software on/off control

• SuperDoctor II, Watch Dog, NMI, LDCM, LDSM

• Environmental temperature monitoring and control

• Power-up mode control for recovery from AC power loss

• System overheat LED and control

• System resource alert

• Hardware BIOS virus protection

• Auto-switching voltage regulator for the CPU core

*Note: the only difference between the P4SPE and P4SPA+ boards is that the

P4SPE does have the VGA Connector.

1-8

SUPER P4SPA+/P4SPE User’s Manual

ACPI Features

• Microsoft OnNow

• Slow blinking LED for suspend state indicator

• BIOS support for USB keyboard

• Main switch override mechanism

• Internal/external modem ring-on

Onboard I/O

• 2 ATA/100 EIDE Channel s for a total of 4 IDE devices backward

compatible

• Intel ICH5 SATA Controller, 2 connectors for 2 devices

• 1 floppy port interface (up to 2.88 MB)

• 2 Fast UART 16550 compatible serial ports

• Intel 82547EI Gigabit Ethernet Controller (66MHz)(*For P4SPA+), Intel

82562EZ 10/100 Mb Ethernet LAN Controller (*For P4SPE)

• 1 EPP (Enhanced Parallel Port) and ECP (Extended Capabilities Port)

supported parallel port

• PS/2 mouse and PS/2 keyboard ports

• 1 game port header

• Up to 8 USB (Universal Serial Bus) 2.0 ports for a speed of up to

480Mbps ! Latest USB 2.0 technology!

• 1 infrared port

• AC'97 audio high quality 6-channel sound

Other

• Hyper-threading enabled

• Wake-on-LAN (WOL)

• Wake-on-Ring (WOR)

• Multiple CPU clock frequency ratio selections (set in BIOS)

• AC97' CODEC

• Suspend-to-RAM

• Onboard +5vsb warning LED ("LE2")

CD Utilities

• BIOS flash upgrade utility

• Drivers and software for Intel 865G/865PE chipset utilities

Dimensions

• ATX form factor, 12" x 8.8" (305 x 223.5 mm)

Chapter 1: Introduction

1-9

1-2 Chipset Overview (865G:P4SPA+, 865PE:P4SPE)

Intel’s Sprindale (865G, 865PE) chipset is comprised of two primary compo-

nents: the Graphics Memory Controller Hub (GMCH) and the I/O Controller

Hub (ICH5). The Sprindale (865G, 865PE) provides the performance and

feature-set required for high-end dual/single-processor desktop and work-

station systems.

Graphics Memory Controller Hub (GMCH)

The GMCH provides the host (CPU) interface, DDR (Memory) interface,

AGP interface, ICH5(Hub), CSA interface and 8xAGP interface for the

Sprindale (865G, 865PE) chipset. The CPU interface supports the Pentium 4

Processor subset of the Extended Mode of the Scalable Bus Protocol. The

GMCH memory interface supports dual channel DDR, and the 1.5V AGP slot

which supports 8X/4X data transfers and AGP Fast Writes. The Integrated

Graphics Controller provides 3D, 2D high performance graphics solution.

Host Interface and System Memory Interface

The Springdale GMCH can utilize a single PGA 478-pin processor. It sup-

ports a FSB frequency of 800/533/400 MHz(100 MHz, 133 MHz, and 200

MHz CLK respectively). It supports 32-bit host addressing, decoding up to

4GB of the CPU's memory address space. The Springdale GMCH integrates

a system memory DDR Controller which supports dual DDR data channels,

with a bandwidth up to 3.2GB/s(DDR 400) for single-channel mode and

6.4GB/s(DDR 400) for dual-channel mode.

Intel ICH5 System Features

The I/O Controller Hub provides the I/O subsystem with access to the rest

of the system. It supports dual channel Ultra ATA/100 Bus Master IDE

Controller, two Serial ATA (SATA) Host Controllers, SMBus 2.0 Controller,

LPC/Flash BIOS Interface, PCI 2.3 Interface, and Integrated System Manage-

ment Controller.

Graphics Features/Display (865G: for P4SPA+ only)

The Springdale GMCH provides an integrated graphics accelerator deliver-

ing 3D, 2D and video capabilities. It also provides interfaces to a progres-

sive scan analog monitor and two DVO devices. It is compliant with DVI

specification and has a high-speed interface to a digital display.

1-10

SUPER P4SPA+/P4SPE User’s Manual

1-3 PC Health Monitoring

This section describes the PC health monitoring features of the SUPER

P4SPA+/P4SPE. The motherboard has an onboard System Hardware Moni-

tor chip that supports PC health monitoring.

Eight Onboard Voltage Monitors for the CPU Core, Chipset

Voltage, +3.3V, +3.3V standby,

+5V, +5V standby, Vbat and

±±

±12V

The onboard voltage monitor will scan these voltages continuously. Once a

voltage becomes unstable, it will give a warning or send an error message

to the screen. Users can adjust the voltage thresholds to define the sensi-

tivity of the voltage monitor.

Fan Status Monitor with Firmware/Software On/Off Control

The PC health monitor can check the RPM status of the cooling fans. The

onboard 3-pin fans are controlled by the power management functions.

CPU Overheat LED and Control

This feature is available when the user enables the CPU overheat warning

function in the BIOS. This allows the user to define an overheat tempera-

ture. When this temperature reaches the threshold, the CPU thermal trip

feature will be activated and it will send a signal to the Speaker LED and, at

the same time, the CPU speed will be decreased.

Hardware BIOS Virus Protection

The system BIOS is protected by hardware so that no virus can infect the

BIOS area. The user can only change the BIOS content through the flash

utility provided by Supermicro. This feature can prevent viruses from in-

fecting the BIOS area and destroying valuable data.

Auto-Switching Voltage Regulator for the CPU Core

The 3-phase-switching voltage regulator for the CPU core can support up to

60A current and auto-sense voltage IDs ranging from 0.875 V to 1.6V. This

will allow the regulator to run cooler and thus make the system more stable.

Chapter 1: Introduction

1-11

1-4 Power Configuration Settings

This section describes features of your motherboard that deal with power

and power settings.

Microsoft OnNow

The OnNow design initiative is a comprehensive, system-wide approach to

system and device power control. OnNow is a term for a PC that is always

on but appears to be off and responds immediately to user or other re-

quests.

Slow Blinking LED for Suspend-State Indicator

When the CPU goes into a suspend state, the chassis power LED will start

blinking to indicate that the CPU is in suspend mode. When the user presses

any key, the CPU will wake-up and the LED will automatically stop blinking

and remain on.

BIOS Support for USB Keyboard

If the USB keyboard is the only keyboard in the system, it keyboard will

function like a normal keyboard during system boot-up.

Main Switch Override Mechanism

When an ATX power supply is used, the power button can function as a

system suspend button. When the user depresses the power button, the

system will enter a SoftOff state. The monitor will be suspended and the

hard drive will spin down. Depressing the power button again will cause

the whole system to wake-up. During the SoftOff state, the ATX power

supply provides power to keep the required circuitry in the system alive. In

case the system malfunctions and you want to turn off the power, just

depress and hold the power button for 4 seconds. The power will turn off

and no power will be provided to the motherboard.

1-12

SUPER P4SPA+/P4SPE User’s Manual

Wake-up events can be triggered by a device such as the external modem

ringing when the system is in the SoftOff state. Note that external modem

ring-on can only be used with an ATX 2.01 (or above) compliant power

supply.

Wake-On-LAN (WOL)

Wake-On-LAN is defined as the ability of a management application to re-

motely power up a computer that is powered off. Remote PC setup, up-

dates and asset tracking can occur after hours and on weekends so that

daily LAN traffic is kept to a minimum and users are not interrupted. The

motherboards have a 3-pin header (WOL) to connect to the 3-pin header on

a Network Interface Card (NIC) that has WOL capability. Wake-On-LAN

must be enabled in BIOS. Note that Wake-On-Lan can only be used with an

ATX 2.01 (or above) compliant power supply.

Wake-On-Ring (WOR) Header

Chapter 1: Introduction

1-13

1-5 Power Supply

As with all computer products, a stable power source is necessary for

proper and reliable operation. It is even more important for processors that

have high CPU clock rates of 1 GHz and faster.

The SUPER P4SPA+/P4SPE accommodates 12V ATX power supplies. Al-

though most power supplies generally meet the specifications required by

the CPU, some are inadequate. You power supply must supply 1 amp of 5V

standby voltage.

It is strongly recommended that you use a high quality power supply that

meets 12V ATX power supply Specification 1.1 or above. Additionally, in

areas where noisy power transmission is present, you may choose to in-

stall a line filter to shield the computer from noise. It is recommended that

you also install a power surge protector to help avoid problems caused by

power surges.

It also provides two high-speed, 16550 compatible serial communication

ports (UARTs), one of which supports serial infrared communication. Each

UART includes a 16-byte send/receive FIFO, a programmable baud rate

generator, complete modem control capability and a processor interrupt sys-

tem. Both UARTs provide legacy speed with baud rate of up to 115.2 Kbps

as well as an advanced speed with baud rates of 250 K, 500 K, or 1 Mb/s,

which support higher speed modems.

The Super I/O provides functions that comply with ACPI (Advanced Con-

figuration and Power Interface), which includes support of legacy and ACPI

power management through a SMI or SCI function pin. It also features auto

power management to reduce power consumption.

The IRQs, DMAs and I/O space resources of the Super I/O can be flexibly

adjusted to meet ISA PnP requirements, which support ACPI and APM (Ad-

vanced Power Management).

1-14

SUPER P4SPA+/P4SPE User’s Manual

1-6 Super I/O

The disk drive adapter functions of the Super I/O chip include a floppy disk

drive controller that is compatible with industry standard 82077/765, a data

separator, write pre-compensation circuitry, decode logic, data rate selec-

tion, a clock generator, drive interface control logic and interrupt and DMA

logic. The wide range of functions integrated onto the Super I/O greatly

reduces the number of components required for interfacing with floppy disk

drives. The Super I/O supports four 360 K, 720 K, 1.2 M, 1.44 M or 2.88 M

disk drives and data transfer rates of 250 Kb/s, 500 Kb/s or 1 Mb/s.

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