ICP NOVA-4899 User Manual

NOVA-4899

Low Power GXLV/GX1 MMX with

SVGA, Ethernet, & Audio SBC.

Manual Version 1.0

September 10, 2003

©Copyright 2003 by ICP Electronics Inc. All Rights Reserved.

1

Copyright Notice

The information in this document is subject to change without prior notice in
order to improve reliability, design and function and does not represent a
commitment on the part of the manufacturer.

In no event will the manufacturer be liable for direct, indirect, special, incidental,
or consequential damages arising out of the use or inability to use the product or
documentation, even if advised of the possibility of such damages.

This document contains proprietary information protected by copyright. All
rights are reserved. No part of this manual may be reproduced by any
mechanical, electronic, or other means in any form without prior written
permission of the manufacturer.

Trademarks

NOVA-4899 is a registered trademark of ICP Electronics Inc. IBM PC is a
registered trademark of International Business Machines Corporation. Intel is a
registered trademark of Intel Corporation. Other product names mentioned
herein are used for identification purpose only and may be the trademarks
and/or registered trademarks of their respective companies.

Support

For any enquiries regarding the product or the content of this manual, please
email us at: [e-mail]

.

2

Table of Contents

1 Introduction ..................................................................... 5

1.1 Specifications..................................................................................... 5

1.2 Package Contents ............................................................................... 7

2 Installation....................................................................... 8

2.1 NOVA-4899 Board Layout..................................................................... 8

2.2 Unpacking Precautions......................................................................... 9

2.3 Compact Flash Setting (JP1)................................................................. 9

2.4 Clear CMOS Setup .............................................................................. 10

2.5 Watchdog Timer Setting....................................................................... 10

2.6 DiskOnChip™ Flash Disk Memory Address setting.................................... 11

3 Connection........................................................................ 12

3.1 Floppy Disk Drive Connector (FDD) ....................................................... 12

3.2 PCI E-IDE Disk Drive Connector (HDD1, HDD2)....................................... 13

3.3 Parallel Port (LPT) ............................................................................... 15

3.4 Serial Ports (COM1, C OM2)................................................................... 16

3.5 Audio Connector................................................................................. 17

3.6 Keyboard & PS/2 Mouse Connector (CN8)............................................... 18

3.7 USB Port Connector (CN9) ................................................................... 18

3.8 IrDA Infrared Interface Port (CN3) ........................................................ 19

3.9 VGA Connector (VGA & CN6)................................................................ 19

3.10 LAN RJ45 Connector and Ethernet LED................................................... 20

3.11 External Switches and Indicators (JP6)................................................... 20

3.12 External Power Connector .................................................................... 21

3.13 Digital I/O (CN7) ................................................................................ 22

3.14 SYSTEM LED (D9)............................................................................... 22

4 AWARD BIOS Setup .......................................................... 23

4.1 Getting Started................................................................................... 23

4.2 Standard CMOS Setup......................................................................... 24

4.3 BIOS Features Setup........................................................................... 25

4.4 Chipset Features Setup........................................................................ 25

4.5 Power Management Setup.................................................................... 26

4.6 PNP / PCI Configuration....................................................................... 27

4.7 Load BIOS Defaults............................................................................. 28

4.8 Load Setup Defaults............................................................................ 28

3

Integrated Perpherals.......................................................................... 29

4.9

4.10 Password Setting................................................................................ 30

4.11 IDE HDD Auto Detection ...................................................................... 30

4.12 Save and Exit Setup............................................................................ 31

4.13 Quit Without Saving............................................................................ 31

5 SVGA Setup....................................................................... 32

5.1 Introduction....................................................................................... 32

5.2 Further Information............................................................................. 32

6 Audio ................................................................................ 33

6.1 Introduction....................................................................................... 33

7 PCI Bus Ethernet Interface............................................... 34

7.1 Introduction....................................................................................... 34

Appendix A Watchdog Timer .................................................. 35

Appendix B I/O Address Map ................................................. 37

4

1 Introduction

NOVA-4899 is designed for limited space applications with only the size of a 5
1/4" hard drive. It supports the full functions of an AT& ATX-compatible
industrial computer on a single board. NOVA-4899 is equipped with a
low-power consumption and high performance GX1 processor on board. It also
contains an SDRAM SO-DIMM socket that can support up to 512 MB memory.
NOVA-4899 provides three Ethernet interfaces, audio interface, socket for
DiskOnChip, EIDE interface, one parallel port, two RS-232 serial ports, and a
PS/2 keyboard/mouse interface.

NOVA-4899 offers CRT resolutions of up to 1280 x 1024 @ 256 colors & 1024 x
768 @ 16 bpp. The display type is configured by software utility. The Flash
ROM supports BIOS and the VGA BIOS. Reprogramming the Flash ROM could
do modification if necessary. In addition, a PCI slot is included.

1.1 Specifications

Field Description

NS GX1-233/266/300 MMX
32-bit x86 Processor

System Memory One 144-pin SO-DIMM socket support up to 512MB

BIOS AWARD 256 KB Flash memory

Display Controller MediaGx processor has applied the UMA

Audio Compliant to AC97, support stereo connectors:

Supports Intel MMX instruction set extension for
the acceleration of multi media applications.
16 KB unified L1 cache.
Five-stage pipelined integer unit.
Integrated Floating Point Unit (FPU).

SDRAM.

technology, which provides 1.5~4 MB display
memory, to be set up by BIOS.

Supports non-interlaced CRT monitors resolutions
up to 1280x1024 @ 256 colors & 1024x768 @
16bpp.

Speaker, Mic-in, Line-in, Line-out, and CD-in.

5

IDE interface The IDE supports up to four PCI Enhanced IDE

hard drives.

FDD interface Supports up to two floppy disk drives, 5.25 (360

KB and 1.2 MB) and/or 3.5” (720 KB, 1.44 MB, and

2.88MB).

Serial ports Two RS232 ports, one RS232 port can be set to

infrared port with Transfer rate up to 115 KBPS.

Parallel port One Parallel port, supports SPP/EPP/ECP mode.

PS/2 Mouse/Keyboard
connector

A 6-pin connector for easy connection to a
keyboard or PS/2 mouse.

USB interface Two USB ports, USB 1.0 compliant.

Power management Supports power saving modes including

Normal/Doze/Sleep modes. APM 1.1 compliant.

Watchdog timer Can be set by 1-255 seconds period. Reset or

NMI is generated when CPU does not periodically
trigger the timer.

10/100Mbps Ethernet
Controller

Intel 82559, 82551,or Realtek RTL8100BL
IEEE802.u 100 BASE-TX standard Dual
Auto-sensing interface to 10MBps or 100MBps
networks. On board RJ45 connectors are provided
for easy connection.

DiskOnChipTM Flash Disk Supports one 32-pin socket for DiskOnChip Flash

Disk.

CompactFlash Disk The CompactFlash Storage Card also runs in True

IDE Mode that is compatible with an IDE disk
drive. It can be used with a passive adapter in a
Type II socket.

Expansion bus One PCI slot.

Power supply +5V @1.8A (typical), +12V @50mA (typical)
Operating temperature 0~60 ℃

Dimension 8” (L) x 5.75” (W) (203 mm x 146 mm)

6

1.2 Package Contents

Before you begin installing the product, please check the following materials are
included in the package:

• NOVA-4899 all-in-one single board computer x 1

• CD disk for utility and drivers x 1

• 3.5" IDE flat cable (40-pin to 40-pin 2.54mm pitch) x 1

• Standard D25 connector for parallel cable (Printer) x 1

• Serial port flat cable (RS-232, 2.54mm pitch) x 2

• Floppy cable (for 3.5" FDD only) x 1

• 2.5" IDE flat cable (44-pin to 44-pin 2.0mm pitch) x 1

• VGA round cable (10 pin to D-SUB 15 pin) x 1

• One-to-two 6-pin mini din connector for keyboard and mouse x 1

• Audio cable set x 1

If any of these items is missing or damaged, contact your distributor or sales
representative immediately.

7

2 Installation

Follow the instructions of installing NOVA-4899. Pay attention to the unpacking
precautions for safety.

2.1 NOVA-4899 Board Layout

8

2.2 Unpacking Precautions

Some components of NOVA-4899 SBC are very sensitive to static electric
charges and can be damaged by a sudden rush of power. To protect it from
unintended damage, be sure to follow these precautions:

• Ground yourself to remove any static charge before touching NOVA-4899
SBC. You can do it by using a grounded wrist strap at all time or by
frequently touching any conducting materials connected to the ground.

• Handle your NOVA-4899 SBC by its edges.

• Do not touch IC chips, leads or circuitry if not necessary.

• Do not plug any connector or jumper while the power is on.

There is one 144-pin SO-DIMM socket to accept 3.3V non-buffered SDRAM. The
maximum memory size is 512 MB.

2.3 Compact Flash Setting (JP1)

Set the operating mode of CompactFlash disk

• JP1: Compact Flash Setting

Address JP1

MASTER CLOSE

SLAVE OPEN

9

2.4 Clear CMOS Setup

If you need to clear the CMOS Setup (for example forgot the password you
should clear the setup and then set the password again.), you should close the
JP2 about 3 seconds, then open it again. To set CMOS to normal operation
mode, open JP9.

• JP2: Clear CMOS Setup (Reserve Function)

JP2 Description

1-2 Normal Operation
2-3 Clear CMOS Setup

2.5 Watchdog Timer Setting

Reading port 443H enables the Watchdog Timer. It should be triggered before
the time-out period ends, otherwise it will assume the program operation is
abnormal and will issue a reset signal to start again. Watchdog Timer is
disabled by reading port 043/843H.

• JP3: Watchdog Active Type Setting

JP3 Description

2-3 Reset when WDT time-out

OPEN Disable WDT

10

2.6 DiskOnChip™ Flash Disk Memory Address setting

DiskOnChip™ Flash Disk Chip (DOC) is produced by M-Systems. It is 100%
compatible to hard disk and no any extra software utility is needed. It is just
“plug and play”, easy to use and reliable. For MD-2200-Xmb series, DOC will
share only 8KB memory address.

• JP4 & JP5: DiskOnChip Memory Address Setting

ADDRESS

CC000 OPEN OPEN CLOSE OPEN OPEN CLOSE CLOSE
CE000 OPEN OPEN OPEN CLOSE OPEN CLOSE CLOSE
D0000 CLOSE OPEN OPEN OPEN CLOSE OPEN CLOSE
D2000 OPEN CLOSE OPEN OPEN CLOSE OPEN CLOSE
D4000 OPEN OPEN CLOSE OPEN CLOSE OPEN CLOSE
D6000 OPEN OPEN OPEN CLOSE CLOSE OPEN CLOSE

D8000 CLOSE OPEN OPEN OPEN OPEN OPEN CLOSE
DA000 OPEN CLOSE OPEN OPEN OPEN OPEN CLOSE
DC000 OPEN OPEN CLOSE OPEN OPEN OPEN CLOSE
DE000 OPEN OPEN OPEN CLOSE OPEN OPEN CLOSE

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

JP5 JP4

11

3 Connection

This chapter describes how to connect peripherals, switches and indicators to the
NOVA-4899 board.

3.1 Floppy Disk Drive Connector (FDD)

NOVA-4899 board is equipped with a 34-pin daisy-chain driver connector cable.

• FDD: FDC Connector

PIN Description PIN Description

1 GROUND 2 REDUCE WRITE
3 GROUND 4 N/C
5 GROUND 6 N/C
7 GROUND 8 INDEX#

9 GROUND 10 MOTOR ENABLE A#
11 GROUND 12 DRIVE SELECT B#
13 GROUND 14 DRIVE SELECT A#
15 GROUND 16 MOTOR ENABLE B#
17 GROUND 18 DIRECTION#
19 GROUND 20 STEP#
21 GROUND 22 WRITE DATA#
23 GROUND 24 WRITE GATE#
25 GROUND 26 TRACK 0#
27 GROUND 28 WRITE PROTECT#
29 GROUND 30 READ DATA#
31 GROUND 32 SIDE 1 SELECT#
33 GROUND 34 DISK CHANGE#

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3.2 PCI E-IDE Disk Drive Connector (HDD1, HDD2)

For IDE HDD connection, NOVA-4899 is designed with a 2.54mm connector
(HDD1) and a 2.0mm connector (HDD2), which could be converted to two

2.54mm standard IDE connector via proprietary cable. You can use these
cables to attach four IDE hard disk drives to NOVA-4899.

• HDD1: 40-pin Primary IDE Interface Connector

PIN Description PIN Description

1 RESET# 2 GROUND

3 DATA 7 4 DATA 8

5 DATA 6 6 DATA 9

7 DATA 5 8 DATA 10

9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 N/C
21 IDE DRQ 22 GROUND
23 IOW# 24 GROUND
25 IOR# 26 GROUND
27 IDE CHRDY 28 GROUND
29 IDE DACK 30 GROUND–DEFAULT
31 INTERRUPT 32 N/C
33 SA1 34 N/C
35 SA0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND

13

• HDD2: 44-pin Secondary Mini-pitched IDE Interface Connector

PIN Description PIN Description

1 RESET# 2 GROUND

3 DATA 7 4 DATA 8

5 DATA 6 6 DATA 9

7 DATA 5 8 DATA 10

9 DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 N/C
21 IDE DRQ 22 GROUND
23 IOW# 24 GROUND
25 IOR# 26 GROUND
27 IDE CHRDY 28 GROUND
29 IDE DACK 30 GROUND–DEFAULT
31 INTERRUPT 32 N/C
33 SA1 34 N/C
35 SA0 36 SA2
37 HDC CS0# 38 HDC CS1#
39 HDD ACTIVE# 40 GROUND
41 VCC 42 VCC
43 GROUND 44 N/C

14

3.3 Parallel Port (LPT)

This port is usually connected to a printer; The NOVA-4899 includes an on-board
parallel port (LPT), accessed through a 26-pin flat-cable connector.

• LPT: Parallel Port Connector

PIN Description PIN Description

1 STROBE# 2 DATA 0

3 DATA 1 4 DATA 2

5 DATA 3 6 DATA 4

7 DATA 5 8 DATA 6

9 DATA 7 10 ACKNOWLEDGE
11 BUSY 12 PAPER EMPTY
13 PRINTER SELECT 14 AUTO FORM FEED #
15 ERROR# 16 INITIALIZE
17 PRINTER SELECT LN# 18 GROUND
19 GROUND 20 GROUND
21 GROUND 22 GROUND
23 GROUND 24 GROUND
25 GROUND 26 N/C

15

3.4 Serial Ports (COM1, COM2)

NOVA-4899 offers two high speeds NS16C550 compatible UARTs with
Read/Receive 16 byte FIFO serial ports. These ports let you connect to serial
devices or a communication network. One 9-pin DB-9 connector and one
10-pin header are provided by NOVA-4899. The detailed pin assignment of the
connectors are specified as following tables:

• COM1: Serial Port DB-9 Connector

PIN Description

1 DATA CARRIER DETECT (DCD)

2 RECEIVE DATA (RXD)

3 TRANSMIT DATA (TXD)

4 DATA TERMINAL READY (DTR)

5 GROUND (GND)

6 DATA SET READY (DSR)

7 REQUEST TO SEND (RTS)

8 CLEAR TO SEND (CTS)

9 RING INDICATOR (RI)

• COM2, Serial Port (10-pin Header/W Housing)

PIN Description PIN Description

1 DCD 6 DSR

2 RXD 7 RTS

3 TXD 8 CTS

4 DTR 9 RI

5 GND 10 GND

16

3.5 Audio Connector

The audio function was organized by CX5530 I/O companions and NS AD1881
CODEC, which compliant with AC97. You can use CD-IN1 as the input port (e.g.:
connected to the output of CD player), depending on the type of connector that
you have.

• CD-IN1: CD_AUDIO INPUT Connector

PIN Description

1 JCD_R

2 GND

3 GND

4 JCD_L

• CN1: Audio Connector

This is the output port of your Sound System. Pin 1-2-3 can be connected to
earphone and 5-6-7 can be connected to loudspeaker. Pin 9-10-11 can be used
as input port if it is connected to the earphone jack of your CD. Pin 15-16 is for
microphone.

PIN Description PIN Description

1 LINE OUT R 2 GND
3 LINE OUT L 4 GND
5 LINE OUT R 6 LINE OUT L
7 GND 8 GND

9 LINE IN L 10 LINE IN R
11 GND 12 GND
13 GND 14 GND
15 MIC IN 16 GND

17

3.6 Keyboard & PS/2 Mouse Connector (CN8)

A 6-pin connector (CN8) for easy connection to a keyboard or PS/2 mouse. The
card comes with a cable to convert from the 6-pin connector to two 6-pin
mini-DIN connectors for keyboard and mouse connection

• CN8: 6-pin Keyboard & Mouse Connector

PIN Description

1 +5V
2 MOUSE DATA
3 MOUSE CLOCK
4 KEYBOARD DATA
5 KEYBOARD CLOCK
6 GROUND

3.7 USB Port Connector (CN9)

The NOVA-4899 provides two USB interfaces, which give the completed plug and
play, for up to 127 external devices.

• CN9: Internal USB Connector

PIN Description PIN Description

1 VCC1 2 GND
3 D0- 6 D1+
5 D0+ 7 D1­7 GND 8 VCC

USB

3

5

7

1

8

6

2

4

18

3.8 IrDA Infrared Interface Port (CN3)

NOVA-4899 has built in an IrDA port which supports Serial Infrared (SIR) or
Amplitude Shift Keyed IR (ASKIR) interface. Wh en using the IrDA port, set SIR
or ASKIR model in the Peripheral Setup COM2 of BIOS. Then the normal
RS-232 COM2 will be disabled.

• CN3: IrDA Connector

PIN Description

1 VCC
2
3 IRRX
4 Ground
5 IR-TX
6

3.9 VGA Connector (VGA & CN6)

NOVA-4899 has a built-in 15-pin VGA connector directly to your CRT monitor &
10-pin VGA connector, the card comes with a cable to convert from the 10-pin
connector to 15-pin VGA connector, directly the CRT monitor.

• VGA: 15-pin Female Connector
PIN Description PIN Description

1 RED 2 GREEN
3 BLUE 4 NC
5 GROUND 6 GROUND
7 GROUND 8 GROUND

9 NC 10 GROUND
11 NC 12 DDC DAT
13 HSYNC 14 VSYNC
15 DDCCLK

• CN6: 10-pin VGA Connector
PIN Description PIN Description

1 RED 6 DDCCLK
2 GREEN 7 DDCDAT
3 BLUE 8 GROUND
4 HSYNC 9 GROUND
5 VSYNC 10 GROUND

19

3.10 LAN RJ45 Connector and Ethernet LED

NOVA-4899 has three built-in RJ45 LAN connectors for 10/100Mbps Ethernet
(Intel 82551 or Realtek 8100BL). NOVA-4899N (Intel 82551) has only one LAN
connector which supports wake up on LAN function. NOVA-4899R (Realtek
8100BL) has three RJ45 LAN connectors to support wake up on LAN function.

• LAN1, LAN2, LAN3: LAN RJ45 Connector

PIN Description PIN Description

1 TX+ 5 GND
2 TX- 6 RX­3 RX+ 7 GND
4 GND 8 GND

• LAN1, LAN2, LAN3: LAN LED DESCRIBE

LED COLOR DESCRIBE

Orange Link

Green Active

3.11 External Switches and Indicators (JP6)

There are several external switches and indicators for monitoring and controllin g
your CPU board. All the functions are in the JP6 connector.

• JP6: External Switches and Indicators

PIN Description PIN Description

Power LED

KeyLock

12 GND 11 GND
14 N/C 13 IDE LED

ATX Signal

20 ATX 5Vsb 19 ATX Power

2 +5V 1 Speaker
4 N/C 3 N/C
6 GND 5 N/C
8 KeyLock 7 +5V

10 GND 9 Reset Switch

16 ATX Power

Control Pin

18 ATX 5Vsb 17 ATX Power

15 +5V

Button Pin1

Button Pin2

Reset button

* ATX Power

Speaker

IDE LED

Button

20

3.12 External Power Connector

NOVA-4899 has an on-board external power connector CN5. You can connect
power directly to the CPU board.

• CN5: External Power Connector

PIN Description

1 +12V
2 GROUND
3 GROUND
4 VCC5V

• CN4: External Power Control Connector

PIN Description

1 GROUND
2 PSON
3 5VSB

21

3.13 Digital I/O (CN7)

One of the characteristics of digital circuit is its fast response to high or low
signal. This kind of response is highly needed for harsh and critical industrial
operating environment. That’s why we design 4-bit digital inputs and 4-bit
digital outputs on the NOVA-4899.

Digital Input and Output are control signals generally. You can use these signals
to control external devices that needs On/Off circuit or TTL devices. The
register address is 240H, 260H or 280H, which is selected in BIOS SETUP. You
can read or write data to the selected address to enable the function of digital
IO.

• CN7: Digital I/O

READ WRITE
Bit0 DIN0 Bit0 DO0
Bit1 DIN1 Bit1 DO1
Bit2 DIN2 Bit2 DO2
Bit3 DIN3 Bit3 DO3

PIN Signal Name PIN Signal Name

1 GND 2 VCC
3 DO3 4 DO2
5 DO1 6 DO0
7 DIN3 8 DIN2
9 DIN1 10 DIN0

3.14 SYSTEM LED (D9)

LED COLOR DESCRIBE

Orange HDD ACTIVE

Green POWER ON

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4 AWARD BIOS Setup

NOVA-4899 uses the AWARD PCI/ISA BIOS for system configuration. The
AWARD BIOS setup program is designed to provide maximum flexibility in
configuring the system by offering various options that may be selected to meet
end-user requirements. This chapter is written to assist you in the proper
usage of these features.

4.1 Getting Started

When you turn on the power button, the BIOS will enter the Power-On-Self-Test
routines. These routines will be executed for system test and initialization and
system configuration verification. After the POST routines are completed, the
following message appears:

" Hit DEL if you want to run SETUP"

To access AWARD BIOS SETUP UTILITY, press <Del> key. The following screen
will be displayed at this time:

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4.2 Standard CMOS Setup

The Standard CMOS Setup is used for basic hardware system configuration.
The main function is for Date/Time setting and Floppy/Hard Disk Drive setting.
Please refer the following screen for this setup.

To set the Date, for example, press either the arrow or <Enter> button on your
keyboard to select one of the fields (Month, Date or Year) then press either
<PgUp> or <PgDn> to increase or decrease the value of that field. Do the
same steps for Time setting.

For IDE hard disk drive setup, please check the following possible setup
procedure:

1. Use the Auto setting for detection during boot-up.

2. Use the IDE HDD AUTO DETECTION in the main menu; the computer will
automatically detect the HDD specifications.

3. Manually enter the specifications by yourself from the ”User“ option.

Note: If you need more information on any particular field, just highlight it then
press <F1> button. A window will pop up to give you more information on that
field.

24

4.3 BIOS Features Setup

This BIOS Features Setup is designed for the 'fine tuning' of your system in
order to improve its performance. As for normal operation, you don‘t have to
change any default setting. The default setting is pre-set for most reliable
operation.

4.4 Chipset Features Setup

This setup function works mostly on board's chipset. This option is used to
change the chipset's configuration. Change the default setting only when
necessary, otherwise the system will function improperly.

25

4.5 Power Management Setup

Power Management Setup helps user to handle the NOVA-4899 board‘s “green”
function. This feature can shut down the video display and hard disk to save
energy, for example. The power management setup screen is as following

26

4.6 PNP / PCI Configuration

This menu is used to assign certain IRQ to your PNP/PCI devices manually.

PNP OS Installed: If you install Plug and Play operating system (OS), the OS
will reassign the interrupt if you select Yes in t his field. If you install a non-Plug
and Play OS or if you want to prevent reassigning of interrupt settings, select No
in this field.

Resources Controlled By: Selecting Auto if you want the computer to assign
the IRQs automatically and vice versa.

Reset Configuration Data: Enabling this field means you allow the
configuration data to be reset.

IRQ-xx assigned to: These fields show whether a PCI/ISA uses certain IRQ.

27

4.7 Load BIOS Defaults

If you select 'Y' to this field, the BIOS Defaults will be load ed except Standard
CMOS SETUP. The default settings are not optimal and turning all high
performance into disabled condition. Select 'N' to abort.

Suggestion: for the first time or for our primary user, we suggest you to use
LOAD SETUP DEFAULTS because it is the safest mode for your system.

4.8 Load Setup Defaults

If you select 'Y' in this field, the Setup Defaults will be loaded except Standard
CMOS SETUP. The default settings are optimal configuration settings for your
system.

28

4.9 Integrated Perpherals

This option is used to assign Onboard I/O, IRQ, and DMA etc. If you don't know
how to configure them, just press <F7> to load Setup Defaults.
The flat panels will then be applied with two modes: 640x480 or 800x600, for
which it needs to set up from BIOS for proper flat panel resolution.

• Digital I/O Base Address -- 240H, 260H, 280H, Disabled

To select the I/O address for digital I/O function.

• Build in CPU Audio -- Enabled, Disabled

To disable/enable the audio function.

• Audio I/O Base Address -- 220H, 240H, 260H, 280H

To select the I/O address for audio function.

• MPU-401 I/O Base Address -- 300H, 330H, Disabled

To select the I/O address for MPU-401 (midi interface).

• Audio IRQ Select -- 5, 7, 10, Disabled

To select the interrupt for audio function.

• Audio Low DMA Select -- DMA0, DMA1, DMA3, Disabled

To select the high DMA channel.

• Audio High DMA Select -- DMA5, DMA6, DMA7, Disabled

To select the high DMA channel.

• Multiple Monitor Support -- No Onboard, PCI first, M/B first

To select the primary VGA for multiple monitor support in WINDOWS.

• Video Memory Size -- 1.5M, 2.5M, 4.0M

To select the size of video memory. It makes use of system memory for
display.

29

4.10 Password Setting

Password Setting sets a password used to protect your system and Setup Utility.
Once you set up the password, the system will always ask you to key-in
password every time you enter the BIOS SETUP. If you enter the BIOS SETUP
with Password, you can choose every setup/option on the main menu. To
disable the password, enter the BIOS SETUP room with Password and then just
press the <Enter> key instead of entering a new password when the 'Enter
Password' prompt pops up.

Note: In case that you forget the password, follow the Clear/Reset CMOS
procedure (see Section 2.5 Clear CMOS Setup)

4.11 IDE HDD Auto Detection

This option detects the parameters of an IDE hard disk drive (HDD sector,
cylinder, head, etc) automatically an d will pu t the parameters into the Standard
CMOS Setup screen. Up to 2 IDE drives can be detected and the parameters
will be listed in the box. Press <Y> if you accept these parameters. Press <N>
to skip the next IDE drives.

Note: If your IDE HDD was formatted in previous older system, incorrect
parameters may be detected. In this case, you need to enter the correct
parameters manually or low-level format the disk

30

4.12 Save and Exit Setup

Select this option when you finish setting all the parameters and want to save
them into the CMOS. Press <Enter> key and all the configuration changes will
be saved

4.13 Quit Without Saving

Select this option if you want to exit the Setup without saving the changes that
you made. Press <Enter> key and you will exit the BIOS SETUP without saving
the changes.

31

5 SVGA Setup

5.1 Introduction

NOVA-4899 is equipped with on-board VGA interface. The specifications and
features are described as below:

Chipset

NOVA-4899 uses a Cyrix CX5530 chipset as its SVGA controller. It has
traditional analog CRT monitors. It also accepts interlaced and non-interlaced
analog monitors (color and monochrome VGA) with high-resolution quality while
maintaining complete IBM VGA compatibility. But digital monitors (i.e. MDA,
CGA, and EGA) are NOT supported. Multiple frequency (multisync) monitors are
operated as if they are analog monitors.

Display memory

Having 1.5 ~ 4 MB UMA memory, the VGA controller can make CRT displays or
color panel displays perform with resolution of up to 1024 x 768 at 64 K colors.
The display memory can be modified up to 4 MB in BIOS for true-color resolution
of 1024 x 768.

Display drivers

1. Win95, 98 drivers (VGA & Audio) in
\VGA\MediaGX\National Geode Win9x Drivers 1.3

2. WinNT4.0 drivers in
\VGA\MediaGX\Nt40Vga\

5.2 Further Information

For more detailed information about the PCI/SVGA installation in NOVA-4899,
including driver updates, troubleshooting instructions, please visit our website

www.ieiworld.com

or contact your local contributor or ICP support team.

32

6 Audio

6.1 Introduction

With on-board audio interface, NOVA-4899 can perform high-quality stereo
sound and FM music synthesis (ESFM) by using the CX5530 audio controller.
The audio interface supports functions of recording, compressing, and playing
back voice, sound, and music with a built-in mixer control. In addition, the on
board audio interface supports the Plug and Play (PnP) standard and provides
PnP configuration for audio, FM, and MPU-104 logical devices. It is compatible
with AC97 version 2.0, voice, and music functions. The ESFM synthesizer is
compatible with OPL3 and has extended capabilities.

Audio drivers

1. Installing software driver in Windows NT

The driver is provided from the CD utility.
WinNT4.0 Audio drivers in
\Audio\MediaGX

2. Installing software driver in Win95/98

The software drivers is supported from Windows 95/98, please set up from...
Win98\drivers\audio\cyrix\mgxsb16.inf

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7 PCI Bus Ethernet Interface

7.1 Introduction

NOVA-4899 provides a high performance 32-bit Ethernet chipset, which is
completely compliant with IEEE 802.3 100 Mbps CSMA/CD standards. It is both
100Base-T and 10Base-T compatible, and is supported by major network
operating system.

The Ethernet port supplies a standard RJ-45 connector on board. The network
boot feature is utilized by incorporating the boot ROM image files for appropriate
network operating system.

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Appendix A Watchdog Timer

Watchdog Timer is a device to ensure that standalone systems can always
recover from catastrophic conditions that cause CPU crash. This condition may
have occurred by external EMI or a software bug. When the CPU stops working
normally, hardware on the board will perform hardware reset (cold boot) to bring
the system back to a known state.

Three I/O ports control the Watchdog Timer.

443 Write Set Watchdog Time period
443 (hex) Read Enable the refresh the Watchdog Timer.
043/843 (hex) Read Disable the Watchdog Timer.

Define Watchdog Time before enabling the function. The output data is a value
of time interval and the range of the value is from 01(hex) to FF (hex) and time
interval 1 sec to 255 sec.

Data Time Interval

01 1 sec
02 2 sec
03 3 sec
04 4 sec

.
.
.

FF 255 sec

This will enable and activate the countdown timer, which will eventually time out
and reset the CPU to ensure that this reset condition does not occur. Watchdog
Timer must be periodically refreshed by reading the same I/O port 043/843H
and 443H. This must be done within the time out period that is selected by
software, please refer to the example program.

A tolerance of at least 5% must be maintained to avoid unknown routines within

.
.
.

the operating system (DOS), such as disk I/O that can be very time consuming.
Therefore if the time out period has been set to 10 seconds, the I/O port 443H
must be read within 7 seconds.

Note: When exiting a program, it is necessary to disable the Watchdog Timer,

35

otherwise the system will reset.

Example assembly program

:
TIMER_PORT = 443H
TIMER_START = 443H
TIMER_STOP = 843H

;;INITIAL TIME PERIOD COUNTER
MOV DX, TIME_PORT
MOV AL, 8: ;;8 SECONDS
OUT DX,AL
;;ADD YOUR APPLICATION HERE
MOV DX, TIMER_START
IN AL, DX. ;;START COUNTER

;;ADD YOUR APPLICATION HERE
W_LOOP:
MOV DX, TIMER_STOP
IN AL, DX
MOV DX, TIMER_START
IN AL, DX. ;;RESTART COUNTER

;;ADD YOUR APPLICATION HERE
CMP EXIT_AP, 0
JNE W_LOOP
MOV DX, TIMER_STOP
IN AL, DX
;;EXIT AP

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Appendix B I/O Address Map

System I/O Address Map

I/O Address Map Description

000-01F DMA Controller #1

020-021 Interrupt Controller # 1, Master

022-03F Chipset address

040-043 System Timer

060-06F Standard 101/102 keyboard Controller
070-07F Real time Clock, NMI Controller

080-0BF DMA Page Register
0A0-0BF Interrupt Controller # 2
0C0-0DF DMA Controller # 2

0F0-0FF Math Coprocessor

170-1FF VIR BUS Master PCI IDE Controller

220-22F Audio 16bit sound

2F8-2FF Serial Port 2

378-37F Parallel Printer Port 1
3B0-3DF Cyrix Graphic Adapter

3F0-3F7 Floppy Disk Controller

3F8-3FF Serial Port 1

443 Watchdog timer enabled

043/843 Watchdog timer disabled

PNP audio I/O map range from 220~250H (16 bytes)
MPU-401 select from 300~330H (2 bytes)

DMA Channel Assignments

Channel Function

0 Available
1 Audio*
2 Floppy disk (8-bit transfer)
3 Available
4 Cascade for DMA controller 1
5 Audio*
6 Available
7 Available

* Audio DMA defaults setting: DMA 1.5
Audio High DMA select: DMA 1.3
Audio Low DMA select: DMA 5.6.7
** Parallel port DMA default setting: DMA 3
Parallel port DMA select: DMA 1.3

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Interrupt Assignments

Interrupt Number Interrupt source

NMI Parity error detected
IRQ 0 System timer
IRQ 1 Keyboard
IRQ 2 Interrupt from controller 2 (cascade)
IRQ 8 Real-time clock
IRQ 9 LAN 1

IRQ 10 LAN 2
IRQ 11 LAN 3
IRQ 12 PS/2 mouse
IRQ 13 Numeric data processor
IRQ 14 CX5530 Primary IDE controller
IRQ 15 CX5530 Second IDE controller

IRQ 3 Serial communication port 2
IRQ 4 Serial communication port 1
IRQ 5 Audio*
IRQ 6 Diskette controller (FDC)
IRQ 7 Parallel port 1 (print port)

*Audio default setting: IRQ5
Ethernet IRQ is automatically set by the system.

st

1

MB Memory Map

Address Description

F000h-FFFFh System ROM

D800h-EFFFh Unused
C800h-D7FFh Ethernet ROM*
C000h-C7FFh Expansion ROM*

A000h-BFFFh VGA graphics

0000h-9FFFh Base memory

D000-D400H Available

* Default setting
** If Ethernet boot ROM is enabled.

38