BCM IN440EX User Manual

Advanced Pentium II

Motherboard

IN440EX

USER’S MANUAL

Copyright  1998 GVC CORPORATION. ALL RIGHTS RESERVED

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NOTICE

Rights:

No part of this manual, including but not limited to the products and software described in it, may be
reproduced, transmitted, transcribes, stored in a retrieval system, or translated in any form or by any means
without the expressed written permission of GVC “Corporation or BCM Advanced Research, Inc.

Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of
their respective companies and are used only for identification or explanation purposes without intent to infringe.

¨ Intel, MMX and Pentium are registered trademarks of Intel.
¨ IBM and OS/2 are registered trademarks of IBM.
¨ AWARD is a registered trademark of American Megatrends Inc.
¨ Winbond is a registered trademark of Winbond Electronics Inc.

Responsibility:

This manual is provided “As is” with no warranties of any kind, either expressed or implied, including, but not limited
to the implied warranties or conditions of this product’s fitness for any particular purpose. In no event shall we be
liable for any loss of profits, loss of business, loss of data, interruption of business, or indirect, special, incidental, or
consequential damages of any kind, even the possibility of such damages arising from any defect or error in this
manual or product. We reserve the right to modify and update the user manual without prior notice.

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ISO 9001 Certificate:

This device was produced in our plant with advanced quality system certified by DNV QA Ltd. in
according to ISO 9001. This Certificate is valid for:
DESIGN & MANUFACTURE OF MOTHER BOARDS AND PERSONAL COMPUTERS.

CE Declaration:

CE marking is a visible declaration by the manufacturer or his authorized representatives that the
electrical equipment to which it relates satisfies all the provisions of the 1994 Regulations.

FCC Compliance:

FCC stands for Federal Communications Commission.

This product complies with FCC Rules Part 15 and has been tested, and complied with the EMI rules by
a certified body. In normal operation, there shall be no harmful interference caused by this device nor
shall this devise accept any interference received, including interference that may cause undesired
operation of this product.

Microsoft Windows Compliance:

Microsoft, Windows NT, Windows, and the Windows Logo are registered trademarks of Microsoft Corporation.

COMPLIANCE & CERTIFICATE

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EASY INSTALLATION

The following “Easy Installation” steps are for users accustomed to the assembly of a
computer system. For those individuals requiring more specific information please
refer to the more detailed descriptions located within the latter chapters of this
manual. Note: You must keep your power cable unplugged until the following
installation steps are completed.

Getting Start:

before unpacking your motherboard. For details please refer to Precaution section in Chapter 3.

Install the CPU by correctly aligning the CPU with the Slot 1

as noted in the motherboard diagram. Once aligned, press
down on the CPU gently but firmly. Next, install either the

3.3 volt unbuffered EDO or SDRAM into the 168 pin
DIMMs. See Sec. 3.2 & Sec. 3.3.

After completing the above steps, install any expansion

cards into the appropriate PCI, ISA or AGP slots and screw
them tight to the chassis. See Sec. 3.4.

Release

Static Electricity

Insert CPU &

RAM

Install All

Expansion Slots

Plug in all cables included in the package except for the

Touch a grounded metal surface to release static electricity stored in your body

power cord. Please see Sec. 3.5.

Please recheck all steps to ensure no mistakes

have been made and then plug in the power cord
and turn on the power to enter the BIOS setup, Chapter 4.

Couple

Connectors Of

HDD, FDD…

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CONTENTS

FEATURES: 9

1 11

INTRODUCTION 11

Overview 11

Processor Subsystem 11
Cache Subsystem 11
Memory Subsystem 12
Data Integrity Subsystem 12
A.G.P. Interface 12
Embedded PCI Devices 13
PCI Bus Master IDE 13
PCI Add-in Cards 13
Embedded A.G.P. Devices 13
Embedded I/O Subsystem 13
System Management Subsystem 13
Advanced Configuration and Power Interface “ACPI” 13

2 34

FUNCTIONAL ARCHITECTURE 34

Processor Subsystem 34

SLOT-1 Processor Socket Pinout 34
Processor Upgrade 34
Processor Heat Sink 34

Memory Subsystem 34

DRAM Subsystem 34
DRAM (DIMM) Sockets 35
System BIOS 35

L2 Cache Subsystem 35

Cacheable and Non-Cacheable Regions 35

Address Maps 36

Memory Map 36
I/O Address Map 36
Interrupt Allocation 36
DMA Channels 36

Video Subsystem 36

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FEATURES 37

3D Accelerator 37
Video Accelerator/Video Capture 37
2D Accelerator 38
General Features 38
Video Modes 39
Video Memory 40
Video (Monitor) Connector 41
Sound Subsystem 42
Sound Features 42
Line Out Connector 42
Microphone In Connector 42
Line In Connector 42
3D Sound 43
CD-IN Connector (Audio) 43
Modem-In Connector 43

PCI/ISA Expansion Slots 43

ISA Interface 43
ISA/PCI Expansion Slots 43
ISA Bus Speed 44
AT Bus Refresh 44

Storage Subsystem 44

IDE Hard Disk Drive Interface 44
Floppy Disk Drive Interface 44

I/O Subsystem 45

Serial Ports 45
Parallel Port 46
Keyboard Interface 47
Mouse Interface 47
Universal Serial Bus Connectors 48
Real-Time Clock 49
Non-volatile CMOS Memory Battery 49
IR (Infra-Red) Support 50
IRDA Header (J19) 50

Miscellaneous Connectors 50

PC Speaker Connector 50
CPU Fan Connector 50
Hard Drive LED Connector 50
Suspend (Sleep) Connector (J27) 51
Power Button Switch (J29) 51
Green/Power-on LED Connector 51
Reset Button Connector (J30) 51

3 52

CONFIGURATION 52

Product Configuration 52

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Processor Speed Select Jumper 52
DRAM Subsystem Configurations 52

4 53

BIOS 53

The Main Menu 55

Main Menu Selection 56
Standard CMOS Setup 58
Bios Feature Setup 60
Power Management Setup 62
Load BIOS Defaults 63
Integrated Peripherals 64
Supervisor Password 65
User password 65
Save & Exit Setup 65

5 66

ELECTRICAL AND MECHANICAL SPECIFICATIONS 66

Absolute Maximum Ratings 66

Electrical 66

DC Specifications for 5V and 3.3V Signals 67

Power Supply 67

Power Supply Connectors 67
Input Power Budget 67

Mechanical 68

System Interfaces 68
User-Accessible Sockets 68
Back-Panel Interfaces 68

Manufacturability/Serviceability 69

Regulatory 69

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Photo Of the Motherboard

Drawing of Motherboard I/O Back Plane

PS/2 Key/Mouse

Parallel

SerialUSB

VGA

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GAME

Line Line Mic
Out In In

FEATURES:

Processor/Cache:

Processor Intel “Deschutes”, “Klamath”, Celeron” Pentium II 233 ~ 333 MHz Operation with

FSB (Front Side Bus) 66 MHz

Upgrades Slot 1
Cache CPU Cartridge Integrated; Write Back and Write Through, direct mapped

organization “BSB” Cache

Size 0KB or 512KB

System Memory

Memory Size 8MB Min up to 256MB with Un-buffered SDRAM
Memory Sites 2 DIMM Sockets. SDRAM. Auto-detect w/Table Free Configuration Double

Density DIMMs.
ECC/EC Non-ECC support.
DIMM Type 8, 16, 32, 64 and 128MB. 64-bit non-ECC
Memory Speed SDRAM 66Mhz parameter for synchronous memory.

Chipset 82440EX AGP/PCI/ISA Chipset

ISA/PCI Bus PCI Level 2.1. 33 MHz Zero Wait State

Graphics Support

“AGP” ATI 3D Rage Pro Turbo 2X or Rage IIC, 66MHz AGP with sidebands and

pipelining 64-bit PCI Graphics Accelerator.

Video Memory SGRAM @ 66MHz (128Kx32 or 256Kx32x2)
Memory Capacity 2MB or 4MB on the motherboard,

Integrated I/O

I/O Controller Winbond W83977TF (Plug & Play Compliant) Serial Ports One 9 pin connectors for

dual asynchronous serial ports. High speed 16C550 compatible serial ports.
Infrared Interface Infrared port with FIR, IrDA and ASKIR
Parallel Port One 25 pin supporting EPP, ECP and Centronics Interface
Hard Disk Controller PCI Bus Mastering IDE. Native and Compatible Mode Support. IDE Transfer with

Scatter Gather. “Ultra 33” Synchronous DMA. Enhanced IDE PIO mode 4

(16MB/s) Independent IDE timing. FIFOs for PCI Burst Transfers.

Swap-Bay Support. Integrated 8x32-bit buffer for IDE PCI Burst Transfers
Hard Disk Connector 2 PCI IDE Connectors for 4 Drives Support
Floppy Controller 720 KB, 1.2, 1.44 and 2.88 MB support in non-FIR mode
Keyboard Port PS/2 (Integrated in the FDC37C77X)
Mouse Port PS/2 (Integrated in the FDC37C77X)
Real Time Clock Integrated in the PIIX4 (DS1287 Compatible)
System Monitor Winbond W83781D; Voltage/Temperature/Fan Speed/Chassis Intrusion

External Communication Ports

Serial Bus Universal Serial Bus (USB), integrated with Core Logic

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Integrated Sound

Sound Chip ESS Solo –1 Business Audio
CODEC 16-bit Stereo
FM Synthesis ESFM™ Music Synthesiser
Sound Effects 3D stereo effects

System BIOS

BIOS Type Winbond based 2Mbit Flash
Hard Disk Driver IDE, Auto-configuring
Plug&Play Support Steerable DMA Channels and Interrupts. ISA Plug&Play
Special Features PC-98 ready. Multi-Boot. PCI Add-In cardauto- config.

Green Features

Power Management APM 1.2,
Advanced Features ACPI (Advanced Configuration and Power Interface) compliant hardware for use

with APM & PNP-BIOS APIs

Jumpers and Front Panel Connectors

Connectors Reset switch. Suspend/Resume Button. Speaker. HD & PWR LED. Power Button.

IR. (Jumpers CPU Speed Multiplier. Password/CMOS Clear.

Headers and Rear Panel Connectors

Connectors Video. Parallel and Serial 1 Ports. Keyboard. Mouse. Line-Out. Mic., Line-In,

game/midi USB 1&2
Headers Serial 2. CPU Fan.

Headers and Connectors

Connectors None
Headers Floppy. IDE 1&2. CD-Audio In. Modem Audio. Aux-In. Reset switch. Speaker.

Suspend/Resume Button. HDD & Power LED. Chassis Fan.

Mechanical

Board Style MicroATX Form Factor
Board Size/Type 9.6” x 9.0”, Four Layer Board

Expansion Slots

Description Two PCI Expansion connectors and two ISA Expansion connectors.

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1 Introduction

This section provides an overview for the MicroATX Pentium II based PCI/ISA Printed Wiring Assembly
(PWA) code-named "IN440EX". It describes functional blocks and their relationship. The following diagram
shows the functional blocks

Overview

The IN440EX is an implementation of BCM Advanced Research for a High-Volume MicroATX motherboard featuring
these subsystems:

• Intel Pentium™ II MMX Processor cartridge support through the SLOT 1 connector

• Intel 82440EX PCIset: 82443EX (“PAC” PCI A.G.P. Controller) and 82371SB (“PIIX4” PCI-ISA-IDE

Xcelerator)

• Accelerated Graphics Port “AGP” connector

• PCI IDE Bus Master interface

• Embedded advanced I/O support

• System Management Logic

• Advanced multiple Audio interface

• USB (Universal Serial Bus)

• System Monitoring Hardware

• MicroATX form-factor motherboard

The targeted Operating Systems for the IN440EX are: Windows 95, Windows 98 and Windows NT.

Processor Subsystem

The IN440EX has provisions to support the following processors: Intel Pentium™ II Processor with MMX™
technology (Deschutes) operating at 333/66, 300/66, 266/66 and 233/66 MHz. The Processor speeds are selectable
with a four, (4) jumper block combination for the bus-to-core frequency ratio and CPU bus speed. The bus-to-core
ratio is either 2/7, 1/4, 2/9 or 1/5 yielding the bus/core frequency; 66/233, 66/266, 66/300 or 66/333 MHz respectively.

High-performance features, including pipelined 32-bit addressing, 64-bit data, 16KB/16KB Instruction/Data Write­back or Write-through 2-way set associative primary cache. 0KB/512KB Write-back direct mapped secondary cache on
the CPU Cartridge using a Back-Side-Bus (BSB). Two (2) Memory DIMM for support of SDRAM.

Two onboard DC/DC converters supply the +2.5 Volts for the CPU I/O voltage and the +1.5 Volts GTL+ bus voltage
(VTT). An on-board switching power converter supplies the CPU core voltage (VCORE), the switcher supports the
Pentium II Voltage-ID pins for auto-voltage programming of the switcher supply.

Cache Subsystem

The cache and control functions are part of the Pentium II Processor. The cache SRAM interface is through the
processor’s Back-Side-Bus (BSB) and is included within the CPU cartridge.

The IN440EX can accept either the Pentium II cartridge with 512KB of second level (L2) Pipelined Burst SRAM
cache. The Pentium II second level cache supports a direct mapped organization with a write-back policy, providing
all necessary snoop functions and inquire cycles. Cacheability of the entire memory space in the first level cache is
supported. For the second level cache only the first 512MB of main memory is cacheable, and only main memory
controlled by the PAC DRAM interface will be cached, PCI and ISA memory is not cached.

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Memory Subsystem

The IN440EX DRAM controller supports a 64-bit memory data interface, optionally supporting 64-bit wide DIMM
modules, without ECC/EC. The DRAM types supported are Synchronous DRAM (SDRAM). SDRAM is supported at
66 MHz using symmetrical addressing.

The IN440EX Main Memory interface provides two (2) 168-pin DIMM socket (DIMM0 and DIMM1) sites, allowing
system memory from 8MB to 256MB of SDRAM.

The DIMM sockets support either single or double-sided ‘Unbuffered DIMM’ modules. The installed DRAM type
can be 8MB, 16MB, 32MB, 64MB or 128MB DIMMs. The DRAM Controller uses the JEDEC standard Serial
Presence Detect (SPD) Mechanism to detect memory and array configurations, there is no jumper settings required for
the memory size. Memory is automatically detected by the system BIOS.

Rules for Populating the DIMM memory array

• DIMM sockets can be populated in any order.

• The DRAM Timing register, which provides the DRAM speed grade control for the entire

memory array, will be programmed to use the timings of the slowest DRAMs installed.

Data Integrity Subsystem

Several data integrity features are included in the system. These are 64-bit DRAM interface for EX chipset,
parity generation and checking on the PCI Bus and A.G.P. (for PCI transactions).

PCI Bus.

The system implements parity generation/checking as defined by the PCI specification.

A.G.P. Bus.

For the operations on the A.G.P. interface using PCI protocol, the system supports Parity generation/checking as
defined by the PCI specification.

Main Memory DRAM Protection Modes.

The system supports three modes of data protection of the DRAM array:

• Non-ECC with Byte-Wise Write Support (Default mode, in this mode there is no provision for

protecting the integrity of data in the DRAM array.)

A.G.P. Interface

The A.G.P. is a high performance, component level interconnect targeted at 3D graphics applications and is based
on a set of performance enhancements to PCI. The IN440EX is designed to support the A.G.P. Interface.

The A.G.P. implementation is compatible with the Accelerated Graphics Port Specification. The system supports
only a synchronous A.G.P. interface coupling to the host bus frequency. The actual bandwidth will be limited by
the capability of the system’s memory, reaching the highest performance with fast SDRAM. The A.G.P. Interface
supports PCI operations as defined by the PCI specification. Electrically, only 66MHz PCI operations are
supported.

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For the definition of A.G.P. Interface functionality (protocols, rules and signalling mechanisms, as well as the
platform aspect of A.G.P. functionality), refer to the latest A.G.P. Interface Specification. This document focuses
only on the Controller specifics of the A.G.P. interface functionality.

Embedded PCI Devices

The PCI bus contains 1 embedded PCI device: PCI bus mastering IDE interface. The arbiter within the PAC
performs arbitration for PCI bus masters.

PCI Bus Master IDE

PIIX-4 provides an integrated Bus Mastering IDE controller with two high performance IDE interfaces for up to
four devices, such as Hard Drives and CD-ROM.

PCI Add-in Cards

High Performance PCI I/O cards can be used in the IN440EX through the PCI connector slots. The PCI bus is
specified to support 10 loads. Each embedded controller or bridge (Video, PCI to ISA Bridge) count as 1 load,
each PCI expansion slot used counts as 2 loads. To support multiple PCI devices in a single slot, add an
expansion board containing PCI to PCI Bridge to a secondary PCI segment.

Embedded A.G.P. Devices

The AGP bus contains 1 embedded device: The ATI 3D Rage Pro Turbo 1X Graphics Accelerator. The 3D Rage
Pro is a highly integrated graphics controller, integrating the 2D, 3D and video accelerators, palette DAC and
quadruple clock synthesiser.

Embedded I/O Subsystem

The Winbond Plug and Play Ultra I/O controller “W83977TF” represents the newest technology in functionality
and integration. While providing the standard PC I/O requirements the Ultra I/O complies with the ISA Plug-and­Play standard version 1.0a, and provides for the recommended functionality to support Windows 95. The Ultra
I/O qualifies 16-bit address to allow relocation of 480 different addresses, with 13 IRQ options and 3 DMA
channels available for each logical device.

Other features of the Ultra I/O are: 8042 keyboard controller. An Infrared interface for Fast IR (FIR), IrDA and
ASKIR. Floppy interface. Two serial ports with 16-byte FIFOs. One EPP/ECP supported bi-directional parallel
port.

System Management Subsystem

The IN440EX support the System Monitor services using Winbond’s W83781D System Management chip. The
W83781D is used to monitor Voltage, Temperature, Fan Speed and Open Case Intrusion. The combination of the
System Monitor and the Wake On LAN (WOL) functionality achieves the Management Level 3.

Advanced Configuration and Power Interface “ACPI”

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The IN440EX supports the ACPI specification and its key elements; The Operating System Directed Power
Management (OSPM). ACPI evolves the existing collection of power management BIOS code, APM APIs, PNP
BIOS APIs, and so on into a well-specified power management and configuration mechanism. It provides support
for an orderly transition from existing (legacy) hardware to ACPI hardware, and it allows for both mechanisms to
exist in a single machine and be used as needed. ACPI evolves the existing motherboard configuration interfaces
to support these advanced architectures in a more robust, and potentially more efficient manner.

OSPM provides a new appliance interface to customers. In particular, it provides for a sleep button. This sleep
button is a “soft” button, which does not turn the machine physically off but signals the OS to go into a ‘soft off’
or sleeping state. ACPI defines two types of these “soft” buttons: one for putting the machine into sleep mode and
one for putting the machine into ‘soft off’ mode.

This gives the OEM two different ways to implement machines: A one or a two-button model. The button on the
one-button model can be used as a power button or a sleep button as determined by user settings. The two-button
model has an easily accessible sleep button and a separate power button. In either model, an override feature that
forces the machine to turn off or to reset without OS consent is also needed to deal with various rare, but
problematic, situations.

ACPI is neither a software nor a hardware specification, although it addresses both software and hardware and
how they must behave. ACPI is actually an interface specification.

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Functional Architecture

Processor Subsystem

The Pentium II processor connects with the system through a 242-pin connector type socket on the circuit board
labelled SLOT-1. The 242-pin configuration corresponds to a standard pinout that can accommodate the following
processors:

Intel Pentium™ II Processor with MMX (Celeron)
Intel Pentium™ II Processor with MMX (Klamath)
Intel Pentium™ II Processor with MMX (Deschutes)

SLOT-1 Processor Socket Pinout

The 242-pin connector is provided to allow for easy configuration at the time of manufacture or as a field upgrade
of the microprocessor.

Reference: SLOT-1
Connector Type: Female, 242 pin Dimm
Connector Part Number: Molex 71796-0001 (Or equivalent)

Processor Upgrade

The Pentium™ II processor maybe removed and replaced to accommodate Kamath or “Deschutes”. Changes to
the VCORE (Core Voltage Selection) are automatically adjusted.

Processor Heat Sink

The IN440EX M/B provides 12V power for the cooling fan through a 3-pin header with Fan-On control and Fan
Speed detection.

Memory Subsystem

DRAM Subsystem

The IN440EX has two 64-bit (168-pin) DIMM sockets (DIMM0 and DIMM1) allowing system memory from 8
MB to 256MB of main DRAM. There are no jumpers settings required for the memory size, which is
automatically detected by the system BIOS.

The DIMMs are rated 66 MHz (Klamath) or 100 MHz (Deschutes) SDRAM (Synchronous DRAM). DIMM
modules must be ‘Unbuffered’ and operate at 3.3V. All the allowable memory size configurations are described
on table 2.1 (Refer to Table 3.6 in the “Configuration” section for the different combinations and sizes of
DIMMs).

Table 2.2. DRAM memory configurations in Megabytes.

8 16 24 32 40 48

64 72 80 96 128 136

144 176 192 256

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DRAM (DIMM) Sockets

Connection to the main system DRAM can be done via two (2) DIMM connectors on
the system PWA.

Reference: DIMM0, DIMM1
Connector Type: female, 168 pin DIMM, in-line connector
Connector Part Number: Berg. 91145-60024 (Or equivalent)

System BIOS

The system and video BIOS are stored in a 2M-bit (256Kx8) Flash Memory device. The
system BIOS is always shadowed and cached.

L2 Cache Subsystem

The Pentium II processor cartridge provides an unified 0KB or 512KB second level (L2)
cache to complement the level one data and instruction (L1) internal caches. The L2 cache
is Direct-Mapped non-sectored, supporting the Write Back policy architecture.

Table 2.4. L2 Cache latency with Burst SRAM

Cycle Type Clock Count

Burst Read X-1-1-1
Burst Write (Write-back) X-1-1-1
Single Read X
Single Write X
Pipelined Back-to-Back Burst Reads

1

: The back-to-back cycles do not account for CPU idle clocks between cycles

X-1-1-1,1-1-1-1

1

Cacheable and Non-Cacheable Regions

The system caches the following regions:

• All system memory, including 0 to 640 KB and all memory present above 1

MB up to 1GB.

• System and integrated video controller BIOS.

The system does not cache the following regions:

• The video memory block from A0000 to BFFFF.

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• PCI memory space on top of main memory.

• Any access to the PCI or AT bus.

Address Maps

Memory Map

The following table describes the breakdown of the IN440EX memory areas and how
they are assigned.

Table 2.5. Memory Map

LOCATION SIZE TO DESCRIPTION

0FFFFFFF-FFFFFFFF 256MB 4GB BIOS ROM

000E0000-000FFFFF 128KB 1MB System BIOS (Shadowed in DRAM)
000C8000-000DFFFF 96KB 896KB Expansion region (Shadowed in DRAM)
000C0000-000C7FFF 32KB 800KB Video BIOS (Shadowed in DRAM)
000A0000-000BFFFF 128KB 768KB Video Buffer (SMM space Non-Cacheable)

00080000-0009FFFF 128KB 640KB Optional memory space gap (DOS Apps)
00000000-0007FFFF 512KB 512KB DOS applications (No read/write protect)

(Always cacheable)

Video Subsystem

3D RAGE PRO Graphics Controller is a highly integrated graphics controller.
Incorporated within this single chip are the 2D, 3D and video accelerators, palette DAC,
and quadruple clock synthesiser. This multi-function integrated controller delivers superior
3D performance, TV-quality scaled video optimized for MPEG playback, industry-leading
Mach64 2D performance, and video expansion capability suited for video conferencing,
cable TV viewing, and hardware MPEG decoding.

The availability of ATI BIOS, drivers, utilities, and application software developed for the
entire chip family is a major strength for the 3D RAGE PRO. Being register-compatible
with all other controllers in the Mach64 accelerator series means immediate compatibility
with a wide range of application drivers. Since this controller is also pin-compatible with
ATI's family of other mach64 integrated controllers, it provides to the OEM a low-cost
upgrade path to additional features and performance.

This controller uses active power management techniques to monitor activity levels within
its’ self and to perform real-time power reductions such as dynamic clock control and
graphics engine shutdown. Because full-speed operation can be restored without delay,
these techniques do not impact performance. Major advances have been included in this
chip to boost performance in the area of a new bus interface, Accelerated Graphics Port

BCM Advanced Research 36

(AGP). With AGP data the throughput between host and 3D RAGE PRO has greatly
increased. The result is even faster 2D and 3D performance and enhancements to motion
video support (e.g. MPEG-2 motion compensation).

FEATURES

3D Accelerator

• Complete 3D primitive support: points, lines, triangles, lists, strips and

Quadrilaterals

• Triangle Setup Engine with floating point to integer parameter conversion

• 4K on-chip Texture Cache

• Destination Alpha

• Gouraud shading

• Alpha blending and alpha interpolation

• 16-bit Z buffer

• Fogging and fog interpolation

• Dithering support in 16 bpp for near 24 bpp quality

• Perspectively correct mip-mapped texture mapping hardware, supporting:

• Palletized CI4 and CI8 texture expansion

• Texture filtering models including tri-linear mip mapping

• Texture lighting modes

• Ability to use YUV format textures

• Alpha in texture map

• Texture maps up to 1024 x 1024

• Non square texture maps

Software driver support for Direct 3D, QuickDraw 3D RAVE and OpenGL interfaces,
as well as others.

Video Accelerator/Video Capture

• Back end scaling

• Color interpolation during scaling for improved high resolution video quality

• Integrated 768 pixel wide dual video line buffers support filtered video scaling

• 4 tap horizontal and 2 tap vertical scalers for high-quality, full-screen video

playback with MPEG-2 (720x480) sources

• YUV to ROB color space conversion with support for both packed and planar

YUV formats as follows:

• YUV422, YUV410 (YUV9), YUV420 (YUV12)

• RGB32, RGB16/15

• Built-in continuous brightness and gamma correction to correct 'dark' images

• Chroma keying for effective overlay of video on graphics

• Overlay true color video regardless of the current graphics mode

• New buffer and frame synchronization modes to reduce display tearing

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• Ability to turn off graphics data access behind video, hence reducing bandwidth

• Support for CCIR 656 video standard

• Ability to capture VBI and Intercast data

• Mirror video capture to support video conference

2D Accelerator

• Hardware acceleration - Rectangle Fill, Line Draw, BitBlt, Polygon

Fill,Panning/Scrolling, Bit Masking, Monochrome Expansion, Scissoring, and full
ROP support

• PCI bus master support for GUI programming

• 8x8x8 SRC Brush support

• Quick engine setup with alias registers

• Improved FIFO management to memory controller

• Increased command FIFO to 128 DWORDs

• Hardware cursor up to 64x64x2

• Acceleration provided in 8/l6/24/32bpp modes. Packed pixel support (24bpp)

enables true color in 1MB configurations

• Game acceleration for Microsoft's DirectDraw—Double Buffering, Virtual Sprites,

Transparent Blit and Masked Blit

• Increased display FIFO to 32 DWORDs. Additional 64 entry FIFO for Bus

mastering

• True 24-bit, true-color palette DAC:

• Pixel clock rates up to 200MHz, with 230MHz option, for up to 1600x1200

screen resolution at 85Hz vertical

• Pixel depth of 32 bit at 1600x1200 screen resolution with WRAM and

external RAMDAC at 240 MHz

• Gamma correction for true WYSIWYG

• Full 24-bit palette

General Features

• Integrated 3D, 2D, and Video accelerators with palette DAC and quad-clock

synthesiser in a single chip

• Comprehensive AGP support, including 66 MHz and 133 MHz pipeline operation

with sideband addressing

• PCI revision 2.1 bus for Plug-and-Play ease of use

• Bi-endian support for compliance on a variety of processor platforms

• 128-level command FIFO assures fast response to host command transfers for

maximum CPU/host bus/controller efficiency and concurrent operation

• Additional 64 entry FIFO dedicated to Bus mastering

• Programmable flat or paged memory model with enhanced host access to a linear

frame buffer

BCM Advanced Research 38

• 32-bit wide read/writeable memory mapped registers with optimized organization,

reduces instruction overhead and raises performance

• DDC1 and DDC2B+ Plug-and-Play monitor support

• Power management for full VESA Display Power Management Signalling(DPMS)

and EPA Energy Star compliance. Also, register support for controller power
reduction and DAC power down

• Built-in CRC, chip diagnostics and manufacturing SCAN to ensure quality

components

Video Modes

The following video modes are supported on the system board by the ATI-3D Rage
Pro Graphics and Video Controller

Table 2.9. Video Modes

Display

Resolution

640x480 60 31.4 25.2
640x480 72 37.7 31.2
640x480 75 37.5 31.5
640x480 90 47.9 39.9
640x480 100 52.9 44.9
640x480 120 63.7 55.0
800x600 48 33.8 36.0
800x600 56 35.1 36.0
800x600 60 37.8 40.0
800x600 70 44.5 44.9
800x600 72 48.0 50.0
800x600 75 46.8 49.5
800x600 90 57.0 56.6
800x600 100 62.5 67.5

800x600 120 76.0 81.0
1024x768 43 35.5 44.9
1024x768 60 48.3 65.0
1024x768 70 56.4 75.0
1024x768 72 58.2 75.0
1024x768 75 60.0 78.8
1024x768 90 76.2 100 - - - - ­1024x768 100 79.0 110 - - - - ­1024x768 120 96.7 130 - - - - ­1152x864 43 45.9 65.0

Screen

Re-fresh

Rate

Hor.

Scan

(kHz)

Pixel

Clock

(MHz)

1 MB DRAM 2 MB DRAM 4 MB DRAM

4 8 16 24 32 4 8 16 24 32 4 8 16 24 32

√ √ √ √
√ √ √ √
√ √ √ √
√ √ √
√ √ √

- - - -

√
√ √ √
√ √ √
√ √ √
√ √ √
√ √ √
√ √ √
√ √
√ √

- - - -

√
√ √
√ √
√ √
√ √
√ √

√ √

- -

- -

- -

- - -

- -

- -

- -

- -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

Colors (Bits per Pixel)

-

√ √ √ √ √ √ √ √ √ √

-

√ √ √ √ √ √ √ √ √ √

-

√ √ √ √ √ √ √ √ √ √
√ √ √ √ √ √ √ √ √ √
√ √ √
√ √ √
√ √ √ √

√ √ √
√ √ √ √
√ √ √ √
√ √ √
√ √ √
√ √
√ √
√ √
√ √ √
√ √ √
√ √ √
√ √ √
√ √ √
√ √
√ √
√ √
√ √ √

- -

- -

- -

- -

- - -

- - -

- - -

- -

- -

- -

- -

- -

- - -

- - -

- - -

- -

√ √ √ √ √
√ √ √ √ √

-

√ √ √ √ √

-

√ √ √ √ √

-

√ √ √ √ √

-

√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √ √
√ √ √ √
√ √ √ √
√ √ √ √ √

-

-

BCM Advanced Research 39

1152x864 47 44.8 65.0
1152x864 60 54.9 80.0
1152x864 70 66.1 100 - - - - ­1152x864 75 75.1 110 - - - - ­1152x864 80 75.1 110 - - - - ­1152x864 85 77.1 121.5 - - - - -

1280x102443 50.0 80.0

√ √
√ √

√

- - -

- - -

- - - -

√ √
√ √
√ √
√ √
√ √
√ √
√ √

- - -

- - -

- - -

- - -

- - -

- - -

- - -

√ √ √ √ √
√ √ √ √
√ √ √ √
√ √ √ √
√ √ √ √
√ √ √ √
√ √ √ √

-

-

-

-

-

-

1280x102447 50.0 80.0

1280x102460 69.3 110 - - - - -

1280x102470 74.6 126 - - - - -

1280x102474 78.8 135 - - - - -

1280x102475 79.9 135 - - - - -

- - - -

√

√ √
√ √
√ √
√ √
√ √

- - -

- - -

- - -

- - -

- - -

√ √ √ √
√ √ √ √
√ √ √ √
√ √ √
√ √ √

-

-

-

- -

- -

Video Memory

The system’s video memory consists of SGRAM only. In it’s standard configuration,
the system will have two 256K/512Kx32 SGRAM chips soldered on the board to give
a total of 2MB/4MB.

Table 2.10. SO-DIMM Video Memory Module Connector Pinout

Pin # Description Pin # Description Pin # Description Pin # Description

1 GND 2 GND 73 MCK 74 MCK
3 VMD63 4 VMD62 75 VCC 76 VCC
5 VMD61 6 VMD60 77 NC 78 NC
7 VMD59 8 VMD58 79 GND 80 GND

9 VMD57 10 VMD56 81 VMA9 82 VMA8
11 VCC 12 VCC 83 VMA7 84 VMA6
13 VMD55 14 VMD54 85 GND 86 GND
15 VMD53 16 VMD52 87 VMA5 88 VMA4
17 VMD51 18 VMD50 89 VMA3 90 VMA2
19 VMD49 20 VMD48 91 VMA1 92 VMA0
21 GND 22 GND 93 VCC 94 VCC
23 DQM#7 24 DQM#6 95 VMD31 96 VMD30
25 DQM#5 26 DQM#4 97 VMD29 98 VMD28
27 VCC 28 VCC 99 VMD27 100 VMD26
29 VMD47 30 VMD46 101 VMD25 102 VMD24
31 VMD45 32 VMD44 103 GND 104 GND
33 VMD43 34 VMD42 105 VMD23 106 VMD22
35 VMD41 36 VMD40 107 VMD21 108 VMD20
37 GND 38 GND 109 VMD19 110 VMD18
39 VMD39 40 VMD38 111 VMD17 112 VMD16
41 VMD37 42 VMD36 113 VCC 114 VCC
43 VMD35 44 VMD34 115 DQM#3 116 DQM#2

BCM Advanced Research 40

45 VMD33 46 VMD32 117 DQM#1 118 DQM#0
47 VCC 48 VCC 119 GND 120 GND
49 NC 50 NC 121 VMD15 122 VMD14
51 NC 52 NC 123 VMD13 124 VMD12
53 NC 54 NC 125 VMD11 126 VMD10
55 GND 56 GND 127 VMD9 128 VMD8
57 DSF 58 NC 129 VCC 130 VCC
59 NC 60 NC 131 VMD7 132 VMD6
61 NC 62 NC 133 VMD5 134 VMD4
63 VCC 64 VCC 135 VMD3 136 VMD2
65 SO_CS1- 66 SO_CS0- 137 VMD1 138 VMD0
67 RAS#0 68 CAS#0 139 GND 140 GND
69 WE# 70 CKEX 141 SDA(21,22) 142 SCL (22)
71 GND 72 GND 143 VCC 144 VCC

Video (Monitor) Connector

Connection to VGA monitor is via a connector on the rear panel on the system PWA.

Reference: J8 (Video)
Connector Type: female, high density DB15S, 15-pin AT-compatible
Connector Part Number: Foxconn Dz11AA1B8 or equivalent

Table 2.11. Video Monitor Connector Pinout

PIN Description

1 RED
2 GREEN
3 BLUE
4 N/C
5 LOGIC-GROUND
6 RED GROUND RETURN
7 GREEN GROUND RETURN
8 BLUE GROUND RETURN

9 +5V PULL-UP
10 LOGIC GROUND
11 N/C
12 DDC DAT
13 HORIZONTAL-SYNC
14 VERTICAL-SYNC
15 DDC CLK
16
17

1:

Pins 16 and 17 are connector mounting holes connected to logic ground.

LOGIC-GROUND
LOGIC-GROUND

1
1

BCM Advanced Research 41

Sound Subsystem

The IN440EX uses the ESS Solo-1 (ES1938), which is a single chip multimedia audio
system controller. It includes an integrated FM synthesiser and a Plug and Play PSI
interface. The ES1938 is compatible with the Microsoft Windows Sound System
standard and will run software written to the Sound Blaster and Sound Blaster Pro
interfaces.

Sound Features

• Compatible with Sound Blaster™, Sound Blaster Pro™, and Windows Sound

System™, PC97/PC98 and WHQL specifications.

• High-Quality ESFM™ Music Synthesiser.

• Fully Plug-and-Play PCI Compatible

• Integrated Spatializer® 3D Audio Effects Processor.

• 16-Bit Address Decode Support

• 4248 Register Compatible

• Dynamic Range (SNR) Over 80dB

• ACP1 Compliant

Line Out Connector

The audio subsystem provides external sound through a user accessible stereo jack
connector (J5-1) soldered to the PWA. This jack will allow the connection of self­amplified speakers.

Reference: J5-1 (LINE OUT)
Connector Type: 1/8 in. Audio Jack Connector
Connector Part Number: Singatron, SJ-500C-0 (or equivalent)

Microphone In Connector

An external accessible jack connector (J5-3) is soldered to the PWA to allow the
connection of a microphone for voice input.

Reference: J5-3 (MIC IN)
Connector Type: 1/8 in. Microphone Jack Connector
Connector Part Number: Singatron, SJ-500C-0 (or equivalent)

Line In Connector

An external accessible jack connector (J5-2) is soldered to the PWA to allow the
connection of a Line-In for line input.

BCM Advanced Research 42

Reference: J5-2 (Line-In)
Connector Type: 1/8 in. Line-In Jack Connector
Connector Part Number: Singatron, SJ-500C-0 (or equivalent)

3D Sound

The ESS Solo-1 has integrated the 3D Audio Effects processor which uses technology
from Spatializer® Audio Laboratories, Inc., and expands the sound field emitted by
two speakers to create a resonant 3D sound environment.

CD-IN Connector (Audio)

Access to the CD-IN connector for audio input from CD-ROM drives.

Modem-In Connector

Access to the MODEM-IN connector for audio input and output from the phone
connection.

PCI/ISA Expansion Slots

ISA Interface

The IN440EX incorporates a fully ISA (AT) bus compatible master and slave interface
that is compatible with the IEEE 996 specification. The ISA interface also provides
byte swap logic and I/O recovery support.

The ISA interface supports the following types of cycles:

• PCI master-initiated I/O and memory cycles to the ISA bus

• DMA compatible cycles between main memory and ISA I/O and between ISA

I/O and ISA memory

• Enhanced DMA cycles between PCI memory and ISA I/O

• ISA refresh cycles initiated by either the controller or an external master

• ISA master-initiated memory cycles to PCI and ISA master-initiated I/O cycles

to the controller registers

ISA/PCI Expansion Slots

BCM Advanced Research 43

The IN440EX motherboard support ISA and PCI expansion buses to implement up to
two (2) ISA and two (2) PCI slots. The IN440EX will support one (1) ISA, one (1)
PCI and one (1) shared ISA/PCI NLX slot.

ISA Bus Speed

Dividing the PCI clock by 4 generates the ISA system clock. The divide by 4 setting is
used for 30MHz and 33MHz PCI bus speed. The frequencies supported are 7.5MHz
and 8.33MHz.

AT Bus Refresh

The IN440EX system board supports hidden refresh cycles which allows the CPU to
continue to execute unless an AT bus cycle is attempted coincident with the AT bus
refresh cycle (ISA Bus refresh cycles are completely decoupled from DRAM Refresh).
Transactions driven by PCI masters that target ISA or IDE resources while refresh is
active are held off with wait states until the refresh is complete.

Storage Subsystem

IDE Hard Disk Drive Interface

The IN440EX provides two (2) independent high performance bus-mastering PCI IDE
interfaces capable of supporting PIO Mode 3, Mode 4 and ‘Ultra33’ Synchronous
DMA mode devices. The integrated IDE interface can control up to four IDE devices
allowing for both CD-ROM and Hard Disk drives. IDE PRI & IDE SEC are the
primary and secondary IDE connectors respectively. Both IDE controllers can be
disabled through BIOS to allow for external disk drive controllers.

Floppy Disk Drive Interface

The IN440EX has an integrated 765B compatible floppy disk controller using the
Winbond’s W83977TF component. The FDC sub-section can control one (720KB, 1.2,

1.44 or 2.88MB) floppy disks or compatible tape drives. The floppy I/O address can be
relocated to 480 different locations. 13 IRQ and 3 DMA channel options are available
as well. Includes multiple power down modes for reduced power use.

The floppy disk interface contains 48mA drivers and Schmitt trigger inputs on the drive
interface.

BCM Advanced Research 44

I/O Subsystem

The I/O Subsystem consists of a single component from Winbond. The IN440EX uses
the Plug and Play Compatible Ultra I/O Controller “W83977TF”, this device provides
support for the ISA Plug-and-Play version 1.0a and includes the recommended
functionality to support Windows 95. Through internal configuration registers, each of
the W83977TF’s logical device’s I/O address, DMA channel and IRQ channel may be
programmed. There are 480 I/O address location options, 13 IRQ options and 3 DMA
channel options for each logical device.

The Ultra I/O device provides two (2) high speed UARTs compatible serial ports with
send/receive 16 Byte FIFOs or one IR port, one Multi-Mode Parallel Port with
ECP/EPP modes, and a Floppy/Tape Controller supporting up to 2.88MB transfer
rates.

Serial Ports

The IN440EX has two (2) UARTs compatible serial ports configured as Data Terminal
Equipment (DTE). The electrical characteristics are compliant with the EIA-232-D
Serial Communications Specifications. The serial ports may be remapped above other
installable serial ports or disabled through BIOS. As a minimum the first serial port
(COM1) must be capable of re-mapping to COM3. The second serial port (COM2)
must be able to be remapped to COM4. The serial ports I/O address can be relocated
within 480 different locations. The default address for COM1, COM2, COM3 and
COM4 are 3F8H, 338H, 2F8H and 238H respectively. 13 different IRQ options are
available to the serial ports.

One port (COM1) is available through a connector (J4) is located on the rear panel of
the system PWA. The second Serial Port (COM2) is available through a header on the
PWA.

Reference: J4 (COM1)
Connector Type: male, 9 pin metal shell D-SUB
Connector Part Number: Amp 1-103322-5 or equivalent

Reference: J13 (COM2)
Connector Type: male, 2x5, 0.100” centerline, straight
Connector Part Number: Amp 1-103322-5 or equivalent

BCM Advanced Research 45

Table 2.17. Serial Port Connector Pinout.

PIN DESCRIPTION

1 DATA-CARRIER-DETECT (DCD)
2 RECEIVE-DATA (RXD)
3 TRANSMIT-DATA (TXD)
4 DATA-TERMINAL-READY (DTR)
5 LOGIC-GROUND
6 DATA-SET-READY (DSR)
7 REQUEST-TO-SEND (RTS)
8 CLEAR-TO-SEND (CTS)

9 RING-INDICATOR (RI)
10
11

1

: Pins 10 and 11 (Shell Ground) are mounting holes connected to the metal connector housing on

serial port 1.

SHELL-GROUND
SHELL-GROUND

1
1

Parallel Port

The system PWA has a single, bi-directional parallel port (EPP/ECP compatible). The
parallel port is capable of being disabled or remapped to either the secondary LPT
address or the tertiary LPT address through BIOS if other parallel ports are installed in
the system. The parallel port I/O address can be relocated within 480 different
locations. Three (3) DMA channels options and 13 different IRQ options are available
to the parallel port.

A connector is located on the rear panel of the system PWA for the external connection
to the port. The parallel port interface contains 12mA source output drivers on the
drive interface, and incorporates ChipProtect circuitry for protection against damage
due to printer Power-On.

Reference: J7 (PARALLEL)
Connector Type: female, 25 pin metal shell D-SUB
Connector Part Number: AMP 750096-3 or equivalent

Table 2.18. Printer Port Connector Pinout

PIN DESCRIPTION

1 STROBE*

2 PD0

3 PD1

4 PD2

5 PD3

6 PD4

7 PD5

8 PD6

9 PD7

BCM Advanced Research 46

10 ACKNOWLEDGE*
11 BUSY
12 PAPER-END (PE)
13 SELECT
14 AUTO-FEED*
15 ERROR*
16 INIT*
17 SELECT -IN*
18 LOGIC-GROUND
19 LOGIC-GROUND
20 LOGIC-GROUND
21 LOGIC-GROUND
22 LOGIC-GROUND
23 LOGIC-GROUND
24 LOGIC-GROUND
25 LOGIC-GROUND
26
27

1

: Pins 26 and 27 are connector-mounting holes connected to the metal connector housing.

Keyboard Interface

SHELL-GROUND
SHELL-GROUND

1
1

The system PWA has a PS/2-compatible keyboard interface. The shielded keyboard
interface connector has a PS/2-compatible pinout and is located on the rear panel on
the system PWA, this connector is a dual package with the Mouse connector residing
on top. To meet the requirements for UL compliance, the Vcc pin (pin 4) is connected
through a fuse prior to connection to the external connector.

Reference: J2 (KEYBOARD) bottom
Connector Type: female, 6-pin metal shield mini-DIN
Connector Part Number: AMP 749231-1 or equivalent

Table 2.19. Keyboard Connector Pinout

PIN DESCRIPTION

1 KEYBOARD-DATA
2 N/C
3 LOGIC-GROUND
4 KEYBOARD-Vcc
5 KEYBOARD-CLOCK
6 N/C
7

SHELL-GROUND

8

SHELL-GROUND

9

SHELL-GROUND

1

: Pins 7-9 are, connector-mounting hole pins connected to the metal connector housing

1
1
1

Mouse Interface

BCM Advanced Research 47

The system PWA has a PS/2-compatible mouse interface. The shielded mouse port can
be disabled through SETUP. A connector, utilizing PS/2 pinouts, is located on the rear
panel on the system PWA. To meet the requirements for UL compliance the Vcc pin
(pin 4) was connected through a fuse prior to connection to the external connector.

Reference: J2 (MOUSE) Top
Connector Type: female, 6-pin metal shield mini-DN
Connector Part Number: AMP 749231-1 or equivalent

Table 2.20. Mouse Connector Pinout

PIN DESCRIPTION

1 MOUSE-DATA
2 N/C
3 LOGIC-GROUND
4 MOUSE-Vcc
5 MOUSE-CLOCK
6 N/C
7
8
9

1

: Pins 7-9 are connector-mounting hole pins connected to the metal connector housing.

SHELL-GROUND
SHELL-GROUND
SHELL-GROUND

1
1
1

Universal Serial Bus Connectors

The Universal Serial Bus (USB) is a communications architecture that gives a PC the
ability to interconnect a variety of devices via a simple four-wire cable. The USB is
actually a two-wire serial communication link that runs at 12 megabits (Mbs) per
second. USB protocols can configure devices at startup or when they are plugged in at
run time. These devices have been broken into five major classes:

• Monitors

• Communication devices

• Audio

• Human input

• Mass storage

More classes will be identified as the USB Standard matures.

The IN440EX is equipped with two USB Serial Ports. This permits connection of two
USB peripheral devices directly to the system without an external hub. If more devices
are needed, an external hub can be connected to either of the built-in ports.

Reference: J3, (USB-1) + USB2

BCM Advanced Research 48

Connector Type: USB CONN, DUAL
Connector Part Number: Molex, 87525-001 or equivalent

Table 2.21. USB-1 & 2 Connector Pinout

PIN DESCRIPTION COMMENT

1 VCC Cable power

2 - Data

3 + Data

4 Ground Cable ground

Real-Time Clock

The integrated Real Time Clock (RTC) is DS12887/MC146818 compatible and
provides the time of day clock, 100-year calendar with alarm features and is accurate to
within 1 minute per month, it consumes less than 1 µA of standby current (Typ.). The
(RTC) supports 256 bytes of battery backed Non-volatile CMOS memory in two banks
of 128 bytes each, both banks being reserved for BIOS use. One bank of CMOS
memory is used to maintain the clock and user-system-setting configuration parameters
when the main system power is removed. The other bank (128 bytes) is lockable in
4x32 byte blocks and can be used to store and lock miscellaneous information.

The CMOS RAM can be set to specific values or cleared to the system default values
using the BIOS SETUP program. Also to prevent a lock-up situation the CMOS RAM
values can be cleared to the system defaults by using the CLR CMOS jumper on the
PWA.

Non-volatile CMOS Memory Battery

An external coin-cell style battery provides power to the RTC and CMOS memory
when system power is removed. The battery has an estimated lifetime of five to seven
years and is socketed for easy replacement.

Reference: BT1
Socket Type: COIN TYPE

BCM Advanced Research 49

IR (Infra-Red) Support

The IN440EX I/O subsystem incorporates an IR interface supporting the following
industry standards; Fast IR, IRDA (HP-SIR), ASK-IR. The IR header provides the
necessary signal interface allowing a two-way wireless communication port using
infrared as the transmission medium. The user can transfer files to/from portable
devices such as laptops, PDA’s and printers using application software such as
LapLink. The Fast IR specification provides for data transfers at 4 Mbps from a
distance of 1 meter. This implementation also provides an infrared interface supporting
a standard or custom remote control device to perform wireless keyboard or mouse
functions.

IRDA Header (J19)

A header is available on the IRDA header for a cable connection to the IR module.

Miscellaneous Connectors

PC Speaker Connector

A header is available on the Speaker header (J22), pin 1 and pin 4 to drive a chassis­mounted speaker if desired.

CPU Fan Connector

A 1 x 3 straight header is available on the PWA to drive the CPU mounted cooling fan
and provide the system with the Fan’s tachometer input.

Reference: J18 (FAN)
Connector Type: 1 x 3 male straight 0.100
Connector Part Number: AMCO 463-2-03 or equivalent

Table 2.24. CPU Fan Conn. Pinout

PIN SIGNAL

1 LOGIC-GROUND
2 FAN-PWR-ON
3 FANTACH3

Hard Drive LED Connector

BCM Advanced Research 50

A header is available on the primary IDZ connector (J32) and secondary IDZ connector
(J28) to power an LED on the front panel to indicate hard drive activity.

Suspend (Sleep) Connector (J27)

A header is available on the Sleep Header (J27) for connecting a momentary contact
switch on the front panel, which can be used to turn the system into Sleep Mode.

Power Button Switch (J29)

A header is available on the power button header (J29) for connecting a momentary
contact switch on the front panel, which can be used to turn the system power off or
on.

Green/Power-on LED Connector

A header is available on the Green LED (J22, pin 2 and pin 4) for connecting to a
Green LED or Power-on indicator (J23).

Reset Button Connector (J30)

A header is available on the Reset header (J30) for connecting a momentary contact
switch on the front panel, which can be used to reset the system.

BCM Advanced Research 51

Configuration

Product Configuration

The PWA component will be produced by BCM without the microprocessor installed,
it is assumed that the microprocessor will be installed during the customer’s integration
process. The same applies to the system memory DRAM DIMMs.

Processor Speed Select Jumper

To select the processor speed there is a jumper block of user-accessible jumpers labeled
“JP1”.

To select the processor speed install the jumper as follows:

Table 3.1. CPU Speed Selection

Klamath

CPU Speed

(MHz)

233 ON OFF ON OFF
266 OFF ON ON ON
300 OFF ON ON OFF
333 OFF OFF ON ON

1-2 3-4 5-6 7-8

3

DRAM Subsystem Configurations

The IN440EX supports 8 MB to 256MB of system RAM. The allowable memory
configurations are shown below:

Table 3.2. DIMMs Configurations

DIMM0 DIMM1 Total Memory

8MB EMPTY 8MB

8MB 8MB 16MB
16MB EMPTY 16MB
16MB 8MB 24MB
16MB 16MB 32MB
32MB EMPTY 32MB
32MB 8MB 40MB
32MB 16MB 48MB

BCM Advanced Research 52

32MB 32MB 64MB
64MB EMPTY 64MB
64MB 8MB 72MB
64MB 16MB 80MB
64MB 32MB 96MB
64MB 64MB 128MB

128MB EMPTY 128MB
128MB 8MB 136MB
128MB 16MB 144MB
128MB 32MB 176MB
128MB 64MB 192MB
128MB 128MB 256MB

For simplicity other memory configurations were not included on this table.

BCM Advanced Research 53

Software

This product’s software is referred to as “BIOS” (Basic Input and Output Subroutine),
the BIOS resides as firmware in a non-volatile memory device using Flash technology.
This technology gives the user the ability to be able to update the BIOS and
accommodate changes to features or optimizations to better the performance of the
system. The user need only to load a diskette with the new BIOS firmware and follow
the manufacturer instructions to update the BIOS.

General

This product will have an Award Software, Inc. developed system Flash BIOS. The
BIOS will have a menu driven SETUP utility. The specific features & implementation
requirements are to be provided by the OEM Customer if so desired.

4

Bios

BIOS Setup

The SETUP Menu on your BIOS maybe slightly different than the one represented in
here. Different OEMs will require certain user access to advanced functions while other
OEMs may not allow the user any access at all. The exact BIOS Menu representation
can be extracted from the BIOS supplied with your platform.

BCM Advanced Research 54

The Main Menu

To start the Award BIOS CMOS Setup utility:

1.Turn on or reboot your system. The Award BIOS displays this message at the
bottom of the screen:

Press DEL to enter SETUP

2. Press the DELete Key to display the Main Menu, which looks like this:

Figure 4.1. BIOS Setup Main Menu

ROM PCI/ISA BIOS (2A59GB3J)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP
BIOS FEATURES SETUP
POWER MANAGEMENT SETUP
LOAD BIOS DEFAULTS

Esc : Quit
F10 : Save & Exit Setup

Time, Date, Hard Disk Type...

INTEGRATED PERIPHERALS
SUPERVISOR PASSWORD
USER PASSWORD
SAVE & EXIT SETUP

: Select Item
(Shift)F2 : Change Color

BCM Advanced Research 55

Main Menu Selections

The Main Menu Selections are as follows:

Table 4.1. Main Menu Selections

Standard
CMOS Setup

BIOS Features
Setup

Power
Management
Setup

Load BIOS
Defaults

Integrated
Peripherals

Supervisor
Password

User
Password

Save & Exit
Setup

Use this menu for basic system configuration,
such as Date, Time, Hard Drive Parameters
and Floppy Drive Parameters.

Use this menu to set certain BIOS Features
available on your system's chipset.

Use this menu to configure Power-Management
features.

Use this to load the BIOS Defaults, except the
Standard CMOS Setup

Use this menu to configure the Onboard
peripherals, such as Serial and Parallel Ports
and Hard Drive and Floppy Drive Controllers.

Setting a Supervisor Password restricts access
to the BIOS Setup menus

Setting a User Password restricts access to the
BIOS Setup menus or the System

Save all changes to CMOS and Exit the Setup
Utility

Use the “←↑→↓” arrow keys to make a selection.

BCM Advanced Research 56

Standard CMOS Setup

You can make the following selections on the Standard CMOS Setup Menu.

Figure 4.1.1 Standard CMOS Setup

ROM PCI/ISA BIOS (2A59GB3J)

STANDARD CMOS SETUP

Use the table on the following page to configure the features on the standard CMOS Setup Men

Date (mm:dd:yy) : Wed, Jan 1 1997
Time (hh:mm:ss) : 16 : 12 : 21

HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE
Primary Master : User 2576 624 128 0 4993 63 LBA

Primary Slave : Auto 0 0 0 0 0 0 AUTO
Secondary Master: Auto 0 0 0 0 0 0 AUTO
Secondary Slave : None 0 0 0 0 0 0 ----------

Drive A : 1.44M, 3.5 in.
Drive B : None

Video : EGA/VGA
Halt On : All Errors

AWARD SOFTWARE, INC.

Base Memory : 640K

Extended Memory : 15360K

Other Memory : 384K

Esc : Quit
F10 : Save & Exit Setup

: Select Item
(Shift)F2 : Change Color

Total Memory : 16384K

PU/PD/+/- : Modify

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Table 4.1.1. Standard CMOS Setup

Feature Options Description

Date MM/DD/YYYY Set the system date.
Time HH/MM/SS Set the system time.
Primary Master TYPE
Primary Slave TYPE
Secondary Master TYPE
Secondary Slave TYPE

SIZE N/A Indicates the Size of the Hard Drive
CYLS∗ 1 - 16,384 Number of Cylinders
HEAD∗ 1 - 16 Number of read/write Heads
PRECOMP∗° N/A Obsolete
LANDZ∗° N/A Obsolete
SECTOR∗ 1 - 63 Number of sectors per track
MODE AUTO

Disk A:
Disk B:

Video Mono

Halt On No Errors

Base Memory N/A Displays amount of conventional
Extended Memory N/A Displays the amount of extended
Other Memory N/A Displays the amount of other memory
Total Memory N/A Displays the total amount of memory

Auto
User
None
1 - 45

NORMAL
LBA
LARGE

360KB, 5 ¼"

1.2MB, 5 ¼"
720KB, 3 ½"

1.44M, 3 ½"

2.88MB, 3 ½"
None

EGA/VGA
CGA 40
CGA 80

All, But Keyboard
All, But Diskette
All, But Disk/Key
All Errors

‘Auto’ autotypes the drive at each boot.
‘User’ prompts the user to fill in
remaining fields. ‘None’ indicates no
drive is attached. ‘1 - 45’ fills in all
remaining fields with values for
predefined disk types.

‘AUTO’ will automatically select which
mode to use. ‘NORMAL’ can be used
for drive smaller than 514MB. ‘LBA’
and ‘LARGE’ can be used for drives
larger than 514MB.

Select the type of floppy-disk drive
installed in your system.

Select the default video device

System displays the error found and
‘Press F1 to continue, DEL to enter
Setup’, unless disabled.

memory detected during bootup
memory detected during bootup
detected during bootup
detected during bootup

° IDE drives do not require setting Landing Zone and Write Precomp.
∗ These settings can only be changed when the Hard Disk Type is set to ‘USER’.

WARNING: Incorrect settings can cause your system to malfunction.

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BIOS Features Setup

You can make the following selections on the BIOS Features Setup Menu.

Figure 4.1.2 BIOS Features Setup

Use the table on the following page to configure the features on the BIOS Features Setup menu.

Virus Warning : Enabled
Quick Power On Self Test : Enabled
Boot Sequence : A,C
Security Option : Setup
PS/2 mouse function control : Enabled

ROM PCI/ISA BIOS (2A59GB3J)

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

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

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

BCM Advanced Research 59

Table 4.1.2 BIOS Features Setup

Feature Options Description

Virus Warning Enabled

Quick Power
On Self Test

Boot
Sequence

Security
Option

PS/2 Mouse
Function
Control

Disabled
Enabled

Disabled
A,C

C,A
C,CDROM,A
CDROM,C,A
C only
Setup

System

Enabled
Disabled

If ‘Enabled’, a warning message will appear on the
screen when any attempt is made to write to the
boot-sector of the Hard Disk Drive.

If ‘Enabled’, the system will shorten or skip certain
checks during the Power On Self Test (POST). The
system will boot more quickly.

The BIOS attempts to load the Operating System
from the disk drives in the sequence selected here.

When ‘Setup’ is selected, the system will neither
boot nor allow access to the CMOS Setup, without
entering the correct password. When ‘System’ is
selected, the system will boot, but access to the
CMOS Setup is restricted by password.

Enables or Disables the on-board PS/2 Mouse
functionality.

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Power Management Setup

Selecting "Power Management Setup" from the Main Menu displays a menu like the one shown here.

Figure 4.1.3 Power Management Setup

ROM PCI/ISA BIOS (2A59GB3J)

Use the table on the next page to specify your settings for Power Management. Remember that the

POWER MANAGEMENT SETUP

AWARD SOFTWARE, INC.

Power Management : Max Saving
PM Control by APM : Yes
Video OFF Method : V/H
SYNC+Blank
MODEM Use IRQ : 3

Doze Mode : 1 Min
Standby Mode : 1 Min
Suspend Mode : 1 Min
HDD Power Down : 1 Min

** Wake Up Events in Doze & Standby**
IRQ3 (Wake-Up Event) : ON
IRQ4 (Wake-Up Event) : ON
IRQ8 (Wake-Up Event) : ON
IRQ12(Wake-Up Event) : ON

** Power Down & Resume Events **
IRQ3 (COM 2) : ON
IRQ4 (COM 1) : ON
IRQ5 (LPT 2) : OFF
IRQ6 (Floppy Disk) : OFF
IRQ7 (LPT 1) : OFF
IRQ8 (RTC Alarm) : OFF
IRQ9 (IRQ2 Redir) : OFF
IRQ10 (Reserved) : OFF
IRQ11 (Reserved) : OFF
IRQ12 (PS/2 Mouse) : ON
IRQ13 (Coprocessor) : OFF
IRQ14 (Hard Disk) : ON
IRQ15 (Reserved) : OFF

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

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

BCM Advanced Research 61

Table 4.1.3 Power Menu Selections

Feature Options Description

Power
Management
Mode

PM Control by
APM

Video Off
Method

Modem Use
IRQ

Doze Mode
Standby Mode
Suspend Mode

HDD Power
Down

Wake Up events
in Doze and
Standby

IRQ 3, 4, 8, 12
Power Down

and Resume
Events

IRQ 3 - 15

Disable
Min Saving
User Define
Max Saving

Yes
No

Blank Screen V/H
SYNC+Blank

DPMS

NA, 3, 4, 5, 7, 9,
10, 11

Disable
1 min
2 min
4 min
6 min
8 min
10 min
20 min
30 min
40 min
1 Hour

Disable
1 - 15 Min

OFF
ON

OFF
ON

‘Max’ and ‘Min’ set power-management options
with pre-defined values. Select ‘User Define’ to
make your own selections from the following
fields. Disabled turns off all power
management.

When ‘Yes’ is selected the Power
Management features are controlled by an
advanced operating system such as
Windows95. When ‘No’ is selected, the BIOS
will control power management.

When ‘Blank Screen’ is selected, the system
will only blank the screen when going into
power saving mode. When ‘V/H Sync+Blank’
is selected, the system will also turn off the V­SYNC and H-SYNC signals. ‘DPMS’ mode can
only be used by video card that adhere to the
DPMS Standard.

Enter the Interrupt that is used by the modem,
if one is installed. Select ‘NA’ if no modem is
installed

Time of inactivity required to enter the next
consecutive power saving mode. These
selections are only available when the above
Power Management feature is set to ‘User
Define’

Time without any disk access, before the hard
drive goes into standby mode (i.e. motor turns
off).

When the system is in Doze or Standby mode,
accessing the enabled IRQ turns the system
back to full power mode.

Any activity on the enabled IRQ will reset the
Power Management Timers to 0. If the system
is in Power Saving Mode, accessing the
enabled IRQ turns the system back to full
power

Load BIOS Defaults

This feature allows the CMOS Settings to be reset to the original default values. The
values in the Standard CMOS Setup Menu, such as date, time and disk drive
parameters are unaffected.

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Integrated Peripherals

Selecting "Integrated Peripherals" from the Main Menu displays a menu like the one shown here.

Figure 4.1.4 Integrated Peripherals Menu

ROM PCI/ISA BIOS (2A59GB3J)

Use the table on the following page to specify your settings for Integrated Periph

On-Chip Secondary PCI IDE : Enabled

USB Controller : Disabled

Onboard FDC Controller : Enabled
Onboard Serial Port 1 : 3F8/IRQ4
Onboard Serial Port 2 : 2F8/IRQ3
UART2 Mode : IrDA
Duplex Select : Half
TxD , RxD Active : Hi,Lo
Onboard Parallel Port : 378/IRQ7
Parallel Port Mode : ECP
ECP Mode Use DMA : 3

INTEGRATED PERIPHERALS

AWARD SOFTWARE, INC.

Onboard Audio Chip EnabledOn-Chip Primary PCI IDE : Enabled

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

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

BCM Advanced Research 63

Table 4.1.4 Integrated Peripherals Selections

Standard IrDA

Feature Options Description

On-Chip
Primary &
Secondary PCI
IDE

USB Controller Enabled Disabled Enable or Disable the on-board Universal
Onboard FDC

Controller
Onboard Serial

Port 1

Onboard Serial
Port 2

UART2 Mode

Duplex Select Half

TxD, RxD
Active

Onboard
Parallel Port

Parallel Port
Mode

ECP Mode used
DMA

Onboard Audio
Chip

Enabled
Disabled

Enabled
Disabled
Disabled

3F8/IRQ4
2F8/IRQ3
3E8/IRQ4
2E8/IRQ3
Auto

Disabled
3F8/IRQ4
2F8/IRQ3
3E8/IRQ4
2E8/IRQ3
Auto

ASK-IR

Full
Lo,Lo

Hi,Hi
Hi,Lo
Lo,Hi

Disabled
3BC/IRQ7
378/IRQ7
278/IRQ5

Normal
EPP1.7+SPP
ECP+EPP1.7
SPP
EPP1.9+SPP
ECP
ECP+EPP1.9

1, 3 Select the Dynamic Memory Address (DMA)

Enabled
Disabled

Enable or Disable the corresponding on-board
IDE adapter.

Serial Bus (USB) controller
Enable or Disable the on-board Floppy Disk

Drive controller
Disable or Enable the first onboard serial port.

3F8 through 2E8 correspond to Com1 through
Com4 assignments respectively.

Disable or Enable the second onboard serial
port. 3F8 through 2E8 correspond to Com1
through Com4 assignments respectively.

Select mode for the second serial port.
‘Standard’ is used for normal serial
communications. ‘IrDA’ is used for Infra-Red
communications at a rate of up to 115 kBaud.
ASK-IR is used for Infra-Red communication
at up to 19.2kBaud.

Select ‘Half’ or ‘Full’ duplex to match the
specification of the IR capable peripheral that
is being used.

Sets the transmit and receive active level, i.e.
‘Hi,Lo’ means that the transmit output is active
high (+V) and the receive input is active low
(Logic Ground)

Disable or Enable the Parallel Port. 3BC, 378,
278 correspond to printer ports LPT3, LPT2,
LPT1 respectively.

‘Normal’ can be selected when the port is used
for printer only. The Enhanced Parallel Port
(EPP) protocol is meant to be used with
peripherals such as CD ROM and Tape
Backup. The Extended Capabilities Port (ECP)
protocol is meant to be used with multi­function peripherals, such as a
Fax/Printer/Modem device.

channel to be used by the parallel port. Only
available when ECP mode is selected.

Enable or Disable the audio chip on the
motherboard.

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Supervisor Password

Select a supervisor password to prevent access to the CMOS Setup Utility program without entering the proper
password. If the security option in the BIOS Features Setup is set to ‘System’, a password must also be entered
before the system will boot.

User Password

Select a user password to prevent access to the CMOS Setup Utility program without entering the proper
password. If the security option in the BIOS Features Setup is set to ‘System’, a password must also be entered
before the system will boot. If a supervisor password is also set up the CMOS Setup Utility program will be
unavailable unless the supervisor password is entered.

Save & Exit Setup

This feature allows the changes to be made to the CMOS setup to be saved. The system will
resume booting after a successful save.

BCM Advanced Research 65

5

Electrical and Mechanical Specifications

This section specifies Electrical parameters for the IN440EX motherboard and describes its
Mechanical characteristics.

Absolute Maximum Ratings

Stresses beyond those shown in the following table may cause permanent damage to
the system (provided for stress testing only).

Table 5.1. Absolute Maximum Ratings
Operating Temperature 0°C to + 55°C
Storage Temperature -55°C to + 150°C
Voltage on any Signal with Respect to VSS -0.3 to Vcc +0.3 V
Supply Voltage with Respect to VSS (5v) -0.3 to +5.5 V
Supply Voltage with Respect to VSS (3.3V) -0.3 to +4.0 V

The topics in this section specify the normal operating conditions for the IN440EX
motherboard. Exposure to absolute maximum rating conditions for extended periods
may affect the system reliability.

Electrical

IN440EX DC specifications are summarized here, for motherboard signaling
environment, power connectors and 5V power budget. Refer to PCI Local Bus
Specification Rev. 2.1, and ISA Bus Specification for PCI and ISA DC and AC
electrical specifications. Refer also to the documentation for ASIC devices used on the
IN440EX motherboard.

BCM Advanced Research 66

DC Specifications for 5V and 3.3V Signals

The following tables, show the required DC specifications for 5V and 3.3V CPU bus
signalling environment.

Table 5.2. 5 Volt DC Specifications

Symbol Parameter Condition Min Max Units

Vcc Supply Voltage 4.75 5.25 V
Vih Input High Voltage 2.2 5.25 V
Vil Input Low Voltage 0.3 0.8 V
Voh Output High

Voltage

Vol Ouput Low Voltage Iol, max

Table 5.3. 3.3 Volt DC Specifications

Symbol Parameter Condition Min Max Units

Vcc3 Supply Voltage 3.168 3.432 V
Vih Input High Voltage 2.2 3.432 V
Vil Input Low Voltage -0.3 0.8 V
Voh Output High Voltage 2.4 V
Vol Ouput Low Voltage 0.4 V

Ioh, max
Vcc, min

Vcc, min

2.4 V

0.4 V

Power Supply

Power Supply Connectors

The input power is supplied via the ATX power supply. The ATX power supply
incorporates the power supply connector (J17) on the system PWA.

Input Power Budget

The +5V current available reflects the rating of the power connector. The Power itself
may deliver more so the system integrator must be sure that the total load does not
exceed the system power supply or board power connector rating, whichever is less.
The rating of the ISA slots is 4.5A per slot. The ISA specification recommends
supporting an average of 3.0A per slot. The average current consumption may not
exceed 3A per slot. The system integrator must also guarantee that worst-case power
consumption does not exceed the maximum allowed by the motherboard power
connector.

BCM Advanced Research 67

Table 5.5. IN440EX Motherboard Power Budget

Voltage Current Load(A)

Input Tolerance Minimum Maximum

-12V +/-5% 0 0.1 amp

-5V +/-5% 0 0.1 amp

+5V +/-5% 1 9 amp

+12V +/-5% 0.2 0.8 amp

3.3 +/-4% 1.5 5 amp

Mechanical

System Interfaces
User-Accessible Sockets

The following user accessible sockets are located on the top of the system PWA:

Table 5.9. Accessible Sockets

U22 (BIOS) System and Video BIOS PROM (During

development only)

MICROPROCESSOR UPGRADE SLOT 1 processor socket

DIMM0, DIMM1 DIMM sockets

Back-Panel Interfaces

The following interface connections are located on the rear panel of the system PWA:

Table 5.11. Back-Panel Interfaces

J2 (bottom) Keyboard connector

J2 (top) PS/2 Mouse connector

J3 Universal Serial Bus connector 1
J1 SVGA Connector

J4 COM 1 port connector
J5-3 Mic-In
J5-1 Line-Out
J5-2 Line-In
J5-1 Game/MIDI port

J7 Parallel port connector

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Manufacturability/Serviceability

IN440EX is designed to be both easy to manufacture and service. The items specifically
related to the system PWA are:

• Connector location & labeling

• Jumper location & labeling

• PWA bar code label (part number and revision)

• Flash BIOS

• DIMM sockets labeling & location

• Video memory upgrade DRAM sockets & labeling location

Regulatory

BCM will supply information and resource to assist in the IN440EX product
qualification testing for compliance with the regulatory agency approvals.

BCM Advanced Research 69