Page 1
SBC82400
Single Chip Half Size
ISA CPU CARD
with CRT, Ethernet
User’s Manual
Page 2
Disclaimers
The information in this manual has been carefully checked and is believed
to be accurate. AXIOMTEK Co., Ltd. assumes no responsibility for any
infringements of patents or other rights of third parties which may result
from its use.
AXIOMTEK assumes no responsibility for any inaccuracies that may be
contained in this document. AXIOMTEK makes no commitment to update
or to keep current the information contained in this manual.
AXIOMTEK reserves the right to make improvements to this document
and/or product at any time and without notice.
No part of this document may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without the prior written permission
of AXIOMTEK Co., Ltd.
Copyright 2004 by AXIOMTEK Co., Ltd.
All rights reserved.
June 2004, Version A1
Printed in Taiwan
ii
Page 3
ESD Precautions
Integrated circuits on computer boards are sensitive to static
electricity. To avoid damaging chips from electrostatic
discharge, observe the following precautions:
Do not remove boards or integrated circuits from their anti-static
packaging until you are ready to install them.
Before handling a board or integrated circuit, touch an unpainted
portion of the system unit chassis for a few seconds. This helps to
discharge any static electricity on your body.
Wear a wrist-grounding strap, available from most electronic
component stores, when handling boards and components.
Trademarks Acknowledgments
AXIOMTEK is a trademark of AXIOMTEK Co., Ltd.
IBM is a registered trademark of International Business
Machines Corporation.
MS-DOS, and Windows ’95/98/NT/2000 are trademarks of
Microsoft Corporation.
Award is a trademark of Award Software, Inc.
IBM, PC/AT, PS/2, VGA are trademarks of International
Business Machines Corporation.
Intel, Pentium, Pentium II, Pentium III and Celeron are
trademarks of Intel Corporation.
C&T is a trademark of Chips and Technologies, Inc.
Realtek RT8100C are registered trademark of Realtek
Semiconductor Corporation.
Other brand names and trademarks are the properties and
registered brands of their respective owners.
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iv
Page 5
T a b l e o f C o n t e n t s
Chapter 1 Introduction............................................................1
1.1 General Description.......................................................1
1.2 Secpifications ................................................................2
Chapter 2 Jumpers and Connectors......................................5
2.1 Board Dimensions .........................................................6
2.2 Board Layout..................................................................7
2.3 Jumper Settings.............................................................8
2.3.1 CPU CLK SPEED: JP1, JP2, JP7, JP8 ..................................... 9
2.3.2 CPU is HCLK X1 or X2: JP3, JP12 .......................................... 9
2.3.3 COM2 Signal/+12V/+5V Selection: JP5 ................................ 9
2.3.4 COM1 Signal/+12V/+5V Selection: JP6 ................................ 9
2.3.5 COM2 RS-232/422/485 Selection: JP9, JP10, JP11............. 10
2.3.6 CMOS Clear Jumper: JP13........................................................ 10
2.3.7 Compact Flash Voltage Selection: JP14.................................. 10
2.3.8 Compact Flash Master/Slave Selection: JP15 ........................ 10
2.3.9 DiskOnChip Memory Segment Selection: JP17................. 11
2.3.10 Watchdog Trigger Mode Selection: JP18.............................. 11
2.4 Connectors...................................................................12
2.4.1 Flat Panel Bezel Connector: CN2 ............................................ 13
2.4.2 Mouse & Keyboard Connectors: CN4, CN5......................... 14
2.4.3 Keyboard & Mouse Connector: CN6 .....................................14
2.4.4 Power Connector: CN7 ............................................................. 15
2.4.5 ACPI Connector: CN8 .............................................................. 15
2.4.6 Compact Flash Connector: CN9.............................................. 16
2.4.7 Ethernet Connector: LAN1 ...................................................... 17
2.4.8 PC/104 Connectors: J1 and J2 ................................................. 18
2.4.9 Parallel Port Interface: LPT1 .................................................... 20
2.4.10 Serial Port Interface: COM1 and COM2.............................. 21
2.4.11 IrDA Connector: IR1............................................................... 22
2.4.12 Floppy Disk Controller: FDD1.............................................. 22
2.4.13 IDE Interface Connector: IDE1............................................ 23
Table of Contents
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Chapter 3 Hardware Description........................................24
3.1 Microprocessors..........................................................24
3.2 CPU Bus Clock.............................................................24
3.3 BIOS ...........................................................................24
3.4 System Memory ...........................................................24
3.5 I/O Port Address Map ..................................................25
3.6 Interrupt Controller......................................................26
Chapter 4 Award BIOS Utility ............................................28
4.1 BIOS Introduction ........................................................28
4.2 BIOS Setup ...................................................................28
4.2.1 Standard CMOS Setup............................................................... 30
4.2.2 Advanced BIOS Features.......................................................... 34
4.2.3 Advanced Chipset Features....................................................... 39
4.2.4 Integrated Peripherals ................................................................ 41
4.2.5 Power Management Setup......................................................... 44
4.2.6 PNP/PCI Configuration ........................................................... 46
4.2.7 Set Password................................................................................ 48
4.2.8 Save & Exit Setup....................................................................... 49
4.2.9 Exit Without Saving ................................................................... 49
Appendix A Watchdog Timer .............................................50
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
C h a p t e r 1
Introduction
1.1 General Description
The SBC82400 is the ultimate cost-effective solution of 486-level
embedded half card. The SBC82400 comes with an embedded highperformance STPC Consumer-II microprocessor and 32MB SDRAM
onboard. For maximum performance, it also has one optional DIMM
socket that can support up to 128 MB memory.
Its major onboard features include a DOC
Compact Flash socket, an IDE interface, a parallel port, two
serial ports (RS-232 and RS-232/422/485) a RJ-45 for fast
Ethernet and a mini-DIN PS/2 connector for keyboard and
mouse. A SVGA display controller, which integrated in
Consumer-II microprocessor, allows the CRT display resolution
up to 1280 x 1024 @ 256 colors.
Introduction
® 2000 socket, a
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
1.2 Secpifications
CPU
Onboard STPC Consumer-II microprocessor
System Chipset
Integrated in Consumer-II
Cache memory
Integrated L1 8Kbyte write back cache
System memory
128MB maximum
First bank: onboard 32MB
Second bank: one 168-pin DIMM socket supporting
up to 128MB SDRAM
BIOS
AWARD BIOS, Plug-and-Play 2Mbit Flash ROM with
integrated Ethernet Novell RPL and Windows PXE Boot
ROM functions
Onboard IDE
1 channel up to 2 devices
PIO Mode 0-4, DMA Mode 0-2
Standard I/O:
Two serial ports, including one RS-232 and one RS-
232/422/485
One parallel port, SPP/EPP/ECP
One HDD Interface
One FDD Interface
One PS/2 Keyboard & Mouse Interface
One IrDA interface for wireless communication
Watchdog Timer
Generates a system reset or NMI by jumper
selectable
Software programmable time interval
64 levels, 0.5~8/5~80/50~800/100~1600 seconds
2
Introduction
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
Ethernet
Realtek 8100C PCI Bus 10/100M Base-T
Power Management
Supports Plug & Play, APM(ACPI support)
Graphics
Graphics function is integrated in Consumer-II
Up to 4MB long linear frame buffer
Supports CRT connector
The CRT controller supports up to 1024 x 768 Display
resolutions at 75Hz
SSD
DiskOnChip: supports M-System DiskOnChip
Compact Flash Type II
Expansion Slots
One 16-Bit PC/104 connector
1 ISA golden finger
Board ID:
Dallas DS2401 Board unique ID support
Operating system
MS-DOS
Windows 98, Windows NT 4.0, Windows CE
Power supply voltage: +5 V (4.75 ~ 5.25 V)
Power consumption:
Maximum: +5 V @ 2 A
Typical: +5 V @ 1.62 A
Operating temperature: 0 ~ 60° C (32 ~ 140° F)
NOTE: Specifications are subject to change without notice.
Introduction
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Introduction
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
C h a p t e r 2
Jumpers and Connectors
Jumpers and Connectors
5
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.1 Board Dimensions
6
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.2 Board Layout
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.3 Jumper Settings
The SBC82400 is configured to match the needs of the
application with the proper jumper settings.
The table below is a summary of all the jumpers and their
default settings for the onboard devices.
Jumper Description Jumper Setting
JP1
JP2
JP7
JP8
JP3
JP12
JP4
JP5
JP6
JP9
JP10
JP11
JP13
JP14
JP15
JP17
JP18
CUP CLK SPEED Default: 66MHz Short 1-2
CUP CLK SPEED Default: 66MHz Short 1-2
CUP CLK SPEED Default: 66MHz Short 2-3
CUP CLK SPEED Default: 66MHz Short 2-3
CPUCLK is HCLK x1 or x2 Default: x2 Short 1-2
CPUCLK is HCLK x1 or x2 Default: x2 Short 1-2
Reserved
COM2 Signal/+12V/+5V Selection
Default: RS232 Signal
COM1 Signal/+12V/+5V Selection
Default: RS232 Signal
COM2 RS-232/422/485 Selection
Default: RS-232
COM2 RS-232/422/485 Selection
Default: RS-232
COM2 RS-232/422/485 Selection
Default: RS-232
Clear CMOS Jumper
Default: Normal
Compact Flash Voltage Selection
Default: 5V
Compact Flash Master/Slave Selection
Default: Slave
DiskOnChip Memory Segment Setting
Default: D0000 – D1FFF
Short 7-9,8-10
Short 7-9,8-10
Short 1-2
Short 3-5,4-6
Short 3-5,4-6
Short 1-2
Short 1-2
Open
Short 1-2, 3-4
Watchdog Trigger Mode: Disabled Open
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.3.1 CPU CLK SPEED: JP1, JP2, JP7, JP8
Options Setting
CPU BUS CLK
50 MHz
60 MHz
66 MHz
90 MHz
100 MHz
JP1 JP2 JP7 JP8
(1-2) (2-3) (2-3) (2-3)
(2-3) (1-2) (2-3) (2-3)
(1-2) (1-2) (2-3) (2-3)
(1-2) (1-2) (2-3) (1-2)
(1-2) (2-3) (1-2) (1-2)
JP1, JP2, JP7, JP8
3
2
1
2.3.2 CPU is HCLK X1 or X2: JP3, JP12
Options Setting
X1
X2
JP3 (2-3) JP12 (2-3)
JP3 (2-3) JP12 (1-2)
JP3, JP12
3
2
1
2.3.3 COM2 Signal/+12V/+5V Selection: JP5
Options Setting
Pin 1=+5V
Pin 1=+12V
Pin 1=DCD
Pin 8=+5V
Pin 8=+12V
Pin 8=RI
Short 1-3
Short 3-5
Short 7-9 (default)
Short 2-4
Short 4-6
Short 8-10 (default)
JP5
2345678910
1
2.3.4 COM1 Signal/+12V/+5V Selection: JP6
Options Setting
Pin 1=+5V
Pin 1=+12V
Pin 1=DCD
Pin 8=+5V
Pin 8=+12V
Pin 8=RI
Short 1-3
Short 3-5
Short 7-9 (default)
Short 2-4
Short 4-6
Short 8-10 (default)
Jumpers and Connectors
JP6
2345678910
1
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.3.5 COM2 RS-232/422/485 Selection: JP9, JP10,
JP11
COM2 JP9 JP10 JP11
RS-232 (default)
RS-422
RS-485
1-2 3-5, 4-6 3-5, 4-6
3-4 1-3, 2-4 1-3, 2-4
5-6, 7-8 1-3, 2-4 1-3, 2-4
78
6
4
2
JP9
5
3
1
6
4
2
JP10/11
5
3
1
2.3.6 CMOS Clear Jumper: JP13
Options Setting
Normal Short 1-2 (default)
Clear CMOS Short 2-3
JP13
12 3
2.3.7 Compact Flash Voltage Selection: JP14
Options Setting
5V Short 1-2 (default)
3.3V Short 2-3
JP9
3
2
1
2.3.8 Compact Flash Master/Slave Selection: JP15
Options Setting
Master Close
Slave Open (default)
10
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.3.9 DiskOnChip Memory Segment Selection:
JP17
Options Setting
D0000 – D1FFF
D2000 – D3FFF
D4000 – D5FFF
D6000 – D7FFF
Short 1-2, 3-4 (default)
Short 1-2
Short 3-4
All Open
JP17
1
3
2
4
2.3.10 Watchdog Trigger Mode Selection: JP18
The watchdog timer is an indispensable feature of the
SBC82400. It has a sensitive error detection function and a
report function. When the CPU processing comes to a halt, the
watchdog either generates a NMI or resets the CPU.
Options Setting
NMI Short 1-2
RESET Short 2-3
Disabled Open (default)
JP18
3
2
1
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4 Connectors
The connectors allow the CPU card to connect with other parts
of the system. Ensure that all connectors are in place and
firmly attached. The following table lists the function of each
connector on the SBC82400.
Connectors Label Connectors Label
Reserved
Flat Panel Bezel Connector
Reserved
PS/2 MOUSE Connector
PS/2 Keyboard Connector
Keyboard and Mouse
Connectors (Mini DIN)
Power Connector
ACPI Connector
Compact Flash
SDRAM Connector
CN1
CN2
CN3
CN4
CN5
CN6
CN7
CN8
CN9
DIMM1
Ethernet Connector
PC/104 Connector
DiskOnChip Connector
PRINT PORT Connector
COM PORT Connector
COM PORT Connector
IRDA Connector
Floppy Connector
IDE Channel 1
VGA Connector
LAN1
J1, J2
U22
LPT1
COM1
COM2
IR1
FDD1
IDE1
VGA1
12
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.1 Flat Panel Bezel Connector: CN2
1357911
24681012
Power LED
This connector, designated at Pins 1 and 5 of CN2,
connects the system power LED indicator to its respective
switch on the case. Pin 1 is assigned as +, and pin 5 is as
-. The Power LED lights up when the system is powered
ON.
External Speaker and Internal Buzzer Connector
Pins 2, 4, 6, and 8 of CN2 connect to the case-mounted
speaker unit or internal buzzer. Short pins 4-6 when
connect the CPU card to an internal buzzer. When connect
an external speaker, set these jumpers to Open and install
the speaker cable on pin 8 (+) and pin 2 (-).
System Reset Switch
Pins 9 & 11 of CN2 connect to the case-mounted reset
switch and allow rebooting of the computer instead of
turning OFF the power switch. This is a preferred method
of rebooting in order to prolong the life of the system’s
power supply.
HDD Activity LED
This connector extends to the hard drive activity LED on
the control panel. This LED will flash when the HDD is
being accessed. Pins 10 & 12 of CN2 connect the hard
disk drive to the front bezel IDE LED. Pins 10 is -, and pin
12 is assigned as +.
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.2 Mouse & Keyboard Connectors: CN4, CN5
The SBC82400 provides a mouse and Keyboard interface via
two 5-pin connectors. The pin assignment of these keyboard
and mouse connectors is shown below.
CN4: Mouse Connector Pin Assignment
Pin Description
1 Mouse CLK
2 Mouse Data
3 NC
4 GND
5 VCC
CN5: Keyboard Connector Pin Assignment
Pin Description
1 Keyboard CLK
2 Keyboard Data
3 NC
4 GND
5 VCC
2.4.3 Keyboard & Mouse Connector: CN6
The SBC82400 provides a mini-DIN keyboard and mouse
interface.
CN6
5
1
Keyboard Clock
3
GND
Keyboard Data
Jumpers and Connectors
Mouse Clock
6
4
VCC
Mouse Data
2
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.4 Power Connector: CN7
CN7 is the +5V/+12V power input connector of the SBC82400.
Pin Description
1 +5V
2 GND
3 GND
4 +12V
CN7
1
2
3
4
2.4.5 ACPI Connector: CN8
Advanced Configuration and Power Interface defines a flexible
and extensible interface that allows system designers to select
appropriate cost/feature trade-offs for power management. The
interface enables and supports reliable power management
through improved hardware and operating system coordination.
The specification enables new power management technology
to evolve independently in operating systems and hardware
while ensuring that they continue to work together.
CN8 on the SBC82400 is a 6-pin header connector that
provides ACPI interface.
CN8
1
23456
P
G
P
N
N
W
C
C
_
B
N
S
N
W
B
D
_
5
O
V
N
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.6 Compact Flash Connector: CN9
The SBC82400 is equipped with a CompactFlash socket on the
solder side and it supports the CompactFlash through the IDE2
interface. The socket itself is especially designed to prevent
any incorrect installation of the CompactFlash card.
When install or remove the CompactFlash card, please make
sure that the system power is off.
The CompactFlash card is defaulted as the E: or F: disk drive
in the computer system.
16
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.7 Ethernet Connector: LAN1
LAN1: RJ-45 Connector Pin Assignment
Pin Signal
1
Tx+ (Data transmission positive
2
x- (Data transmission negative)
3
Rx+(Data reception positive)
4
5
6
7
8
RJ45 termination
RJ45 termination
Rx- (Data reception negative)
RJ45 termination
RJ45 termination
2.4.7.1 Features
10Mb/s and 100Mb/s operations
Supports 10Mb/s and 100Mb/s N-Way auto
negotiation
Full duplex capability
Full compliance with PCI Revision 2.1
PCI Bus Master data transfers
1
234567
RJ-45
8
2.4.7.2 Drivers Supported
Bundled with popular software drivers, the SBC82400 Ethernet
interface allows great flexibility to work with all major
networking operating systems including Novell NetWare v2.x,
v3.x, v4.x, Microsoft LAN Manager, Win3.1, Win NT,
Win95/98/ME/2000/XP, IBM LAN Server, SCO UNIX or other
ODI, NDIS and Packet drive compliant operating systems
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.8 PC/104 Connectors: J1 and J2
The PC/104 is an industrial standard. It is a compact form
factor with dimensions of 3.6” x 3.8” and is fully compatible
with the ISA Bus. The PC/104 interface is able to adapt off-theshelf PC/104 modules, such as sound module, fax modem
module, multi-I/O module and etc.
J1: PC/104 Bus Pin Assignment
Pin# Pin Name Pin# Pin Name Pin# Pin Name Pin# Pin Name
1
5
9
13
17
21
25
29
33
37
41
45
49
53
57
61
IOCHCHK*
SD6
SD4
SD2
SD0
AEN
SA18
SA16
SA14
SA12
SA10
SA8
SA6
SA4
SA2
SA0
2
6
10
14
18
22
26
30
34
38
42
46
50
54
58
62
GND
+5V
-5V
-12V
+12V
SMEMW*
IOW*
DACK3*
DACK1*
REFRESH*
IRQ7
IRQ5
IRQ3
TC
+5V
GND
3
7
11
15
19
23
27
31
35
39
43
47
51
55
59
63
SD7
SD5
SD3
SD1
IOCHRDY
SA19
SA17
SA15
SA13
SA11
SA9
SA7
SA5
SA3
SA1
GND
4
8
12
16
20
24
28
32
36
40
44
48
52
56
60
64
RESETDRV
IRQ9
DRQ2
ENDXFR*
(KEY)
SMEMR*
IOR *
DRQ3
DRQ1
SYSCLK
IRQ6
IRQ4
DACK2*
SALE
OSC
GND
18
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
J2: PC/104 Bus Pin Assignments
Pin# Pin Name Pin#
GND
1
IOCS16*
5
IRQ11
9
IRQ15
13
DACK0*
17
DACK5*
21
DACK6*
25
DACK7*
29
+5V
33
GND
37
Pin Name Pin# Pin Name Pin# Pin Name
2
6
10
14
18
22
26
30
34
38
GND
LA23
LA21
LA19
LA17
MEMW*
SD9
SD11
SD13
SD15
3
7
11
15
19
23
27
31
35
39
MEMCS16*
IRQ10
IRQ12
IRQ14
DRQ0
DRQ5
DRQ6
DRQ7
MASTER*
GND
4
8
12
16
20
24
28
32
36
40
SBHE*
LA22
LA20
LA18
MEMR*
SD8
SD10
SD12
SD14
(KEY)
Pin Description Pin Description Pin Description
H2 AD15 H3 AD14 H4 AD12
H5 GND H6 KEY H7 GND
H8 AD10 H9 AD8 H10 AD7
H11 AD5 H12 AD3 H13 AD1
H14 AD0 H15 KEY H16 +5V
H17 +5V H18 GND H19 GND
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.9 Parallel Port Interface: LPT1
The SBC82400 has a multi-mode parallel port to support:
Standard mode
IBM PC/XT, PC/AT and PS/2 compatible with bidirectional parallel port
Enhanced mode
Enhance parallel port (EPP) compatible with EPP 1.7 and
EPP 1.9 (IEEE 1284 compliant)
High speed mode
Microsoft and Hewlett Packard extended capabilities port
(ECP) IEEE 1284 compliant
The parallel port of LPT1 (3BCH) is selected or disabled by
BIOS CMOS setup.
LPT1: Parallel Port Connector Pin Assignment
Pin Description Pin Description
1
3
5
7
9
11
13
15
17
19
21
23
25
Strobe#
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Acknowledge#
Busy
Paper Empty#
Printer Select
Auto Form Feed#
2
Error#
4
Initialize#
6
Printer Select In#
8
GND
10
GND
12
GND
14
GND
16
GND
18
GND
20
GND
22
GND
24
NC
26
20
Jumpers and Connectors
1
3
5
7
9
11
13
15
17
19
21
23
25
10
12
14
16
18
20
22
24
26
2
4
6
8
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.10 Serial Port Interface: COM1 and COM2
The SBC82400 has two onboard serial ports: COM1 is RS232
and COM2 is RS-232/422/485, jumper selectable. Both ports
feature +5V/+12V power capability on pin 1 and pin 8,
depending on the jumper setting
2.4.10.1 RS-232 Connectors
The RS-232 pin assignment is listed on the following table.
Pin Description Pin Description
Data Carrier Detect (DCD)
1
Receive Data (RXD)
3
Transmit Data (TXD)
5
Data Terminal Ready (DTR)
7
Ground (GND)
9
Data Set Ready (DSR)
2
Request to Send (RTS)
4
Clear to Send (CTS)
6
Ring Indicator (RI)
8
NC
10
1
3
5
7
9
2.4.10.2 RS-422/485 Connectors
The RS-422/485 pin assignment for COM2 is listed below.
2
4
6
8
10
Pin #
1
2
3
4
5
6
7
8
9
10
Jumpers and Connectors
Signal Name
R2-422 RS-485
TX- DATA-
r NC
NC
TX+ DATA+
NC
NC
RX+ NC
NC
NC
RX- NC
NC
NC
GND GND
NC
NC
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.11 IrDA Connector: IR1
IR1 is a 5-pin IrDA connector for wireless communication.
IR1
+5V
N.C.
IRRX
GND
IRTX
1
2
3
4
5
2.4.12 Floppy Disk Controller: FDD1
The SBC82400 provides a 34-pin box-header connector, CN18,
for up to two floppy drives support. The floppy drives could be
any one of the following types: 5.25" 360KB/1.2MB and 3.5"
720KB/1.44MB/2.88MB.
FDD1: Floppy Disk Connector Pin Assignment
Pin Description Pin Description Pin Description
GND
1
No connector
4
GND
7
Motor enable A#
10
GND
13
Motor enable B#
16
GND
19
Write data#
22
GND
25
Write protect#
28
GND
31
Disk change#
34
Reduce write current
2
GND
5
Index#
8
GND
11
Drive select A#
14
GND
17
STEP#
20
GND
23
Track 0 #
26
GND
29
Side 1 select#
32
GND
3
NC
6
GND
9
Drive select B#
12
GND
15
Direction#
18
GND
21
Write gate#
24
GND
27
Read data#
30
GND
33
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
2.4.13 IDE Interface Connector: IDE1
The SBC82400 includes one IDE controller that supports IDE
drivers.
IDE1: 40-pin IDE Connector Pin Assignment
Pin Description Pin Description Pin Description
Reset #
1
Data 8
4
Data 5
7
Data 11
10
Data 2
13
Data 14
16
GND
19
GND
22
IOR #
25
No connector
28
Interrupt
31
No connector
34
HDC CS0 #
37
GND
40
GND
2
Data 6
5
Data 10
8
Data 3
11
Data 13
14
Data 0
17
No connector
20
IOW #
23
GND
26
No connector
29
No connector
32
SA0
35
HDC CSI #
38
Data 7
3
Data 9
6
Data 4
9
Data 12
12
Data 1
15
Data 15
18
No connector
21
GND
24
IOCHRDY
27
GND-Default
30
SA1
33
SA2
36
HDD Active #
39
Jumpers and Connectors
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
C h a p t e r 3
Hardware Description
This chapter gives a detailed explaination of the hardware
features of the SBC82400 CPU Board.
3.1 Microprocessors
The SBC82400 comes with an embedded high-performance STPC
Consumer-II microprocessor.
Systems based on this CPU can be operated under UNIX,
OS/2, Windows 98, Windows CE, Windows NT and MS-DOS
environments.
3.2 CPU Bus Clock
The Host Clock can be doubled inside the CPU and isintended
to operate in the range of 25MHz to 100MHz.
3.3 BIOS
System BIOS used on the SBC82400 is Award Plug and Play
BIOS. The SBC82400 contains a single 2Mbit Flash EPROM.
3.4 System Memory
The SBC82400 inductrial CPU board has the 32bit SDRAM
onboard as the first bank and one 168-pin DIMM (Dual In-Line
Memory Module) socket as the second bank. The DIMM
module can come in sizes of 8, 16, 32, 64 and 128MB. The
maximum system memory is 128MB buffer SDRAMs.
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3.5 I/O Port Address Map
The CPU card communicates via I/O ports. It has a total of
1KB port addresses that can be assigned to other devices via
I/O expansion cards.
Address Devices
0C0-0DEh
0F0h
102
120-123
170-177
1F0-1F7
2F8-2FF
378-37F
3B4, 3B5, 3BA
3D4, 3D5, 3DA
03C-3F5
3F6
3F7
3F7,bit 7
3F8-3FF
3F0-3FF
C000-C0FF
DMA controller #1
Reset Numeric Error
VGA Setup Register
Watch-dog timer operation
Secondary IDE Channel
Primary IDE Channel
Serial Port 2
Parallel Port 1
VGA Registers
VGA Registers
VGA Registers
IDE Command Port
Floppy Command Port
Floppy Disk Change
Serial Port 1
Reserved
PCI Configuration Registers
Hardware Description
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3.6 Interrupt Controller
The SBC82400 is a fully PC compatible control board. It
consists of 16 ISA interrupt request lines and 4 of the 16 can
be either ISA or PCI. The mapping list of the 16 interrupt
request lines is shown below:
NMI Parity check error
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
System timer output
Keyboard
Interrupt rerouting from IRQ8 through IRQ15
Serial port #2
Serial port #1
Reserved
Floppy disk controller
Parallel port #1
Real time clock
Ethernet
User available
User available
PS/2 Mouse
Math coprocessor
Primary IDE channel
Secondary IDE Channel
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This page does not contain any information.
Hardware Description
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C h a p t e r 4
Award BIOS Utility
Chapter 4 describes the different settings available in the Award
BIOS that comes with the SBC82400. Also, contained here are
instructions on how to set up the BIOS configuration.
4.1 BIOS Introduction
The Award BIOS (Basic Input/Output System) installed in the
system ROM supports processors in a standard IBM-AT
compatible I/O system. The BIOS provides critical low-level
support for standard devices such as disk drives, serial and
parallel ports. It also adds virus and password protection as well
as special support for detailed fine-tuning of the chipset
controlling the entire system.
4.2 BIOS Setup
The Award BIOS provides a Setup utility program for specifying
the system configurations and settings. The BIOS ROM of the
system stores the Setup utility. When the computer is turned ON,
the Award BIOS is immediately activated. The following
message will appear on the screen.
Press <DEL> to Enter Setup
Then, press the <Del> key immediately to enter the Setup utility.
The delay of pressing the <Del> key will cause POST (Power On
Self Test) to continue with the test routines; thus, prevent
invoking the Setup. In this case, the system has to be restarted
for entering the BIO setup by pressing the ”Reset” button or
simultaneously pressing the <Ctrl>, <Alt> and <Delete> keys.
Besides, turning the system OFF first and then ON again can
also restart the system.
When entering the Setup utility, the Main Menu screen will
appear on the screen. Various setup functions and exit choices
can be selected from this menu.
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In general, the arrow keys are used to highlight items, <Enter>
to select, the <PgUp> and <PgDn> keys to change entries, <F1>
for help and <Esc> to quit.
Phoenix-AwardBios Setup Utility
Standard CMOS Features PnP/PCI Configurations
Advanced BIOS Features Load Optimized Defaults
Advanced Chipset Features Set Password
Integrated Peripherals Save & Exit Setup
Power Management Setup Exit Without Saving
Esc : Quit : Select Item
F10 : Save & Exit Setup
F6 : SAVE CMOS TO BIOS F7 : LOAD CMOS FROM BIOS
Time, Date, Hard Disk Type…
The section below the setup items in the Main Menu displays
the control keys for this menu. Another section located at the
bottom of the Main Menu, just below the control keys section,
displays information on the currently highlighted item in the list.
NOTE:
If the computer cannot boot after making and saving
system changes with Setup, the Award BIOS, via its builtin override feature, resets ther system to the CMOS
default settings.
Avoid making any changes to the chipset defaults are strongly
recommended. These defaults have been carefully chosen by
both Award and the system manufacturer to provide the
absolute maximum performance and reliability.
Award BIOS Utility
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4.2.1 Standard CMOS Setup
“Standard CMOS Setup” is used to record some basic hardware
configurations in the computer system and set the system clock
and the error handling. If the motherboard is already installed in
a working system, there is no need to enter this option. However,
the Standard CMOS option has to be setup in any of the
following situations: the system hardware configurations are
changed, the onboard battery fails, and the configuration stored
in the CMOS memory is lost or damaged.
Phoenix – AwardBIOS CMOS Setup Utility
Standard CMOS Features
Date (mm:dd:yy) Wed, Aug 7 2002 Item Help
Time (hh:mm:ss) 13 : 9 : 11
Menu Level
IDE Primary Master None
IDE Primary Slave None Change the
IDE Secondary Master None Day, month,
IDE Secondary Slave None Year and
Century
Drive A 1.44M, 3.5 in.
Drive B None
Halt on All, But keyboard
Base Memory 640K
Extended Memory 65535K
: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help
F5: Previous Values F7: Optimized Defaults
At the bottom of the menu, the control keys are for the use of
this menu. The <F1> key can be pressed in each item field to
display the relevant information for help. The memory display at
the lower right-hand side of the menu is read-only. It will adjust
automatically according to the memory changed. The following
pages describe each item of this menu.
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Date
The date format is <day>, <date> <month> <year>. Press <F3> to
show the calendar.
day
The day of week, from Sun to Sat, determined by
the BIOS, is read only
The date, from 1 to 31 (or the maximum allowed
date
in the month), can key in the numerical / function
key
month
year
The month, Jan through Dec.
The year, depends on the year of BIOS
Time
The time format is <hour> <minute> <second> accepting either
functional key or numerical key. The time is calculated based on
the 24-hour military-time clock. For example, 1 p.m. is 13:00:00.
IDE Primary Master/Primary Slave
This category identifies the type of the channel that is installed in
the computer. There are 45 predefined types and 2 user definable
types for Enhanced IDE BIOS. Type 1 to Type 45 is predefined.
Type User is user-definable.
Press <PgUp>/<+> or <PgDn>/<−> to select a numbered hard disk
type or type the number and then press <Enter>. Note that the
specifications of the drive in the system must match with the drive
table. The hard disk will not work properly if the improper
information within this category is entered. If the disk drive type
does not match or is not listed, the Type User is used to define the
drive type manually.
If the Type User is selected, related information has to be entered.
Enter the information directly from the keyboard and press <Enter>.
This information should be provided in the documentation from the
hard disk vendor or the system manufacturer.
If the controller of HDD interface is ESDI, select “Type 1”.
If the controller of HDD interface is SCSI, select “None”.
If the controller of HDD interface is CD-ROM, select “None”.
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CYLS.
HEADS
PRECOMP
number of
cylinders
number of
heads
write precom
LANDZONE
SECTORS
MODE
landing zone
number of
sectors
HDD access
mode
If there is no hard disk drive installed, select NONE and press
<Enter>.
Drive A type/Drive B type
The category identifies the types of floppy disk drive A or drive B
installed in the computer.
None
360K, 5.25 in
1.2M, 5.25 in
720K, 3.5 in
1.44M, 3.5 in
2.88M, 3.5 in
No floppy drive installed
5.25 inch PC-type standard drive; 360Kb
capacity
5.25 inch AT-type high-density drive; 1.2MB
capacity
3.5 inch double-sided drive; 720Kb capacity
3.5 inch double-sided drive; 1.44MB capacity
3.5 inch double-sided drive; 2.88MB capacity
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Halt On
This field determines whether the system will halt if an error is detected
during power up.
No errors
All errors
All, But
Keyboard
All, But
Diskette
All, But
Disk/Key
The system boot will halt on any error
detected. (default)
Whenever the BIOS detects a nonfatal error, the system will stop and
you will be prompted.
The system boot will not stop for a
keyboard error; it will stop for all other
errors.
The system boot will not stop for a
disk error; it will stop for all other
errors.
The system boot will not stop for a
keyboard or disk error; it will stop for
all other errors.
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4.2.2 Advanced BIOS Features
This section is used to configure and improve the system and
set up some system features according to the user’s preference.
Phoenix – AwardBIOS CMOS Setup Utility
Advanced BIOS Features
Virus Warning Disabled Item Help
CPU Internal Cache Enabled
Quick Power On Self Test Enabled Menu Level
First Boot Device HDD-0
Second Boot Device Floppy Allows you to
Third Boot Device LS120 choose the VIRUS
Boot Other Device Enabled warning feature
Onboard Lan boot Rom Disable for IDE Hard disk
Swap Floppy Drive Disabled boot sector
Boot Up Floppy Seek Enabled protection. If this
Boot Up NumLock Status On function is enable
Boot UP System Speed High
Optimized Default Select Previos Setup
Gate A20 Option Fast data into this area,
Typematic Rate Setting Disabled
Typematic Rate (Chars/Sec) 6
Typematic Delay (Msec) 250
Security Option Setup
OS Select For DRAM > 64MB Non-OS2
Video BIOS Shadow Enabled
C8000-CBFFF Shadow Disabled
CC000-CFFFF Shadow Disabled
D0000-D3FFF Shadow Disabled
D4000-D7FFF Shadow Disabled
D8000-DBFFF Shadow Disabled
DC000-DFFFF Shadow Disabled
Small Logo(EPA) Show Disabled
Display Board Message Disabled
: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help
F5: Previous Values F7: Optimized Defaults
and someone
attempts to write
BIOS will show
a warning
message on
screen and alarm
beep
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Virus Warning
This item protects the boot sector and partition table of the hard
disk against accidental modifications. If an attempt is made, the
BIOS will halt the system and display a warning message. If this
occurs, the user can either continue the operation or run an antivirus program to locate and remove the problem.
NOTE: Many disk diagnostic programs, which attempt to
access the boot sector table, can cause the virus
warning. Thus, disable the Virus Warning feature
while running any of these programs.
Quick Power On Self Test
This option speeds up Power On Self Test (POST) after turning on
the system power. If it is set as Enabled, BIOS will shorten or skip
some check items during POST. The default setting is “Enabled”.
Enabled
Disabled
Enable Quick POST
Normal POST
First/Second/Third Boot Device
These items allow the selection of the 1
st
, 2nd, and 3rd devices that
the system will search for during its boot-up sequence. The wide
range of selection includes Floppy, LS120, ZIP100, HDD0~3, SCSI,
CDROM, USB Floppy, USB CDROM, USB HDD,and LAN.
Boot Other Device
This item allows the user to enable/disable the boot device not
listed on the First/Second/Third boot devices option above. The
default setting is Enabled.
Onboard Lan boot rom
Choice Enable when you need boot on Lan Funtion, like PXE, RPL.
Swap Floppy Drive
This allows determining whether to enable Swap Floppy Drive or
not. When enabled, the BIOS swaps floppy drive assignments so
that Drive A becomes Drive B, and Drive B becomes Drive A. By
default, this field is set to “Disabled”.
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Boot Up Floppy Seek
During POST, BIOS will determine the floppy disk drive type, 40 or
80 tracks. 360Kb type is 40 tracks while 720Kb, 1.2MB and
1.44MB are all 80 tracks. The default value is “Enabled”.
BIOS searches for floppy disk drive to determine if
Enabled
it is 40 or 80 tracks. Note that BIOS can not tell
from 720K, 1.2M or 1.44M drive type as they are
all 80 tracks.
BIOS will not search for the type of floppy disk
Disabled
drive by track number. There will be no warning
message displayed if the drive installed is 360K.
Boot Up NumLock Status
This option enables and disables the numberlock function of the
keypad. The default value is “On”.
On
Off
Keypad functions confine with numbers
Keypad functions convert to special functions (i.e.,
left/right arrow keys)
Gate A20 Option
The default value is “Fast”.
Normal
Fast
The A20 signal is controlled by keyboard controller or
chipset hardware.
Default: Fast. The A20 signal is controlled by Port 92
or chipset specific method.
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Typematic Rate Setting
This determines the typematic rate of the keyboard. The default
value is “Disabled”.
Enabled
Enable typematic rate and typematic delay
programming
Disable typematic rate and typematic delay
Disabled
programming. The system BIOS will use default value
of these 2 items and the default is controlled by
keyboard.
Typematic Rate (Chars/Sec)
This option refers to the number of characters the keyboard can type per
second. The default value is “6”.
6
8
10
12
15
20
24
30
6 characters per second
8 characters per second
10 characters per second
12 characters per second
15 characters per second
20 characters per second
24 characters per second
30 characters per second
Typematic Delay (Msec)
This option sets the display time interval from the first to the
second character when holding a key. The default value is “250”.
Award BIOS Utility
250
500
750
1000
250 msec
500 msec
750 msec
1000 msec
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Security Option
This item limits the access to the system and Setup, or just to Setup. The
default value is “Setup”.
System
The system will not boot and access to Setup will be
denied if the incorrect password is entered at the
prompt.
Setup
The system will boot, but access to Setup will be denied
if the correct password is not entered at the prompt.
NOTE: To disable security, select PASSWORD
SETTING at Main Menu and then password is
asked to enter. Do not type anything, just
press <Enter> and it will disable security.
Once the security is disabled, the system will
boot and you can enter Setup freely.
OS Select for DRAM > 64MB
This segment is specifically created for OS/2 when DRAM is larger
than 64MB. If the operating system is OS/2 and DRAM used is
larger the 64MB, “OS 2” has to be selected; otherwise (under nonOS2), default is “NON-OS2”.
Video BIOS Shadow
Video shadowing increases the video speed by copying the video
BIOS into RAM. However, it is still optional depending on the
chipset design. The default value of this option is “Enabled”.
Enabled
Disabled
Video BIOS shadowing is enabled
Video BIOS shadowing is disabled
C8000 - CBFFF Shadow/DC000 - DFFFF Shadow
Shadowing ROM reduces available memory between 640KB and
1024KB. These fields determine whether optional ROM is copied to
RAM or not.
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4.2.3 Advanced Chipset Features
Since the features in this section are related to the chipset on
the CPU board and are completely optimized, changing the
default settings in this setup table is not recommended unless
the user is well oriented with the chipset features.
Phoenix – AwardBIOS CMOS Setup Utility
Advanced Chipset Features
Memory Hole (15M – 16M) Disabled Item Help
ISA Clock 14.3MHz/2
SDRAM Clock 100MHz Menu Level
DRAM_Write_Posting Disabled
: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help
F5: Previous Values F7: Optimized Defaults
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DRAM Clock
The DRAM clock value is set depending on whether the board has
paged DRAMs or EDO (extended data output) DRAMs. The
available choices are 66 MHz and Host CLK.
Memory Hole
To improve performance, certain space in memory is reserved for
ISA cards. This memory must be mapped into the memory space
below 16MB. The available choices are 15M-16M and Disabled.
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4.2.4 Integrated Peripherals
This option sets the hard disk configuration, mode and port.
Phoenix – AwardBIOS CMOS Setup Utility
Integrated Peripherals
On-Chip Local Bus IDE Enabled
IDE Buffer for DOS & Win Enabled Item Help
The 2nd Channel IDE
IDE Primary Master PIO Auto Menu Level
IDE Primary Slave PIO Auto
IDE Secondary Master PIO Auto
IDE Secondary Slave PIO Auto
IDE HDD Block Mode Enabled
KBC Input Clock 8MHz
Onboard FDD Controller Enabled
Onboard Serial Port 1 3F8/IRQ4
Onboard Serial Port 2 2F8/IRQ3
Onboard IR Controller Disabled
IR Address Select 3E0H
IR Mode IrDA
IR Transmission delay Enabled
IR IRQ Select IRQ 10
IR MODE Use DMA Disabled
Onboard Parallel Port 378/IRQ7
Parallel Port Mode Normal
XECP Mode Use DMA 3
XParallel Port EPP Type EPP1.9
: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help
F5: Previous Values F7: Optimized Defaults
Enabled
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ON-Chip Local Bus IDE
The Chipset Contains a Local Bus IDE Interface With Support fro
Two IDE Channels Select Enabled to Activate The Primary IDE
Interface. Select Disable to Deactivate This Interface
Primary Master/Slave PIO
The four IDE PIO (Programmed Input/Output) fields set a PIO
mode (0-4) for each of the two IDE devices that the onboard IDE
interface supports. Modes 0 through 4 provide successively
increased performance. In Auto mode, the system automatically
determines the best mode for each device. The options available
are Auto, Mode 0, Mode 1, Mode 2, Mode 3, and Mode 4.
IDE HDD Block Mode
This field is for the hard disk controller to use the fast block mode
to transfer data to and from the hard disk drive.
Onboard FDD Controller
Select Enabled if a floppy disk controller (FDC) installed on the
system board is used. If an add-in FDC is installed or the system
has no floppy drive, select Disabled in this field. The options
available are Enabled, Disabled.
Onboard Serial Port 1/Port 2
Select an address and corresponding interrupt for the first and
second serial ports. The options available are 3F8/IRQ4,
2E8/IRQ3, 3E8/IRQ4, 2F8/IRQ3, Disabled, Auto.
Onboard IR Controller
Select onboard IR Port controller operation mode.
Enabled, Disabled.
IR Address Select
To Select the IR Port decode address
3F8H, 3E8H, 2F8H, 2E8H, 3E0H, 2E0H.
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IR Mode
To Select the IR Port operation mode
IrDA, ASKIR, FIR
IR IRQ Select
Select the IR Port IRQ level.
IRQ3, IRQ4, IRQ10, IRQ11.
Onboard Parallel Port
This item determines access onboard parallel port controller with
which I/O address. The options available are 378H/IRQ7,
278H/IRQ5, 3BC/IRQ7, Disabled.
Onboard Parallel Port Mode
This item selects an operating mode for the onboard parallel
(printer) port. Select Normal unless the hardware and software
require one of the other modes offered in this field. The options
available are EPP1.9, ECP, SPP, ECPEPP1.7, EPP1.7.
ECP Mode Use DMA
This item selects a DMA channel for the parallel port for use during
ECP mode.
Parallel Port EPP Type
This item selects EPP port type 1.7 or 1.9.
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4.2.5 Power Management Setup
The Power Management Setup is to save energy of the system
effectively. It will shut down the hard disk and turn OFF video
display after a period of inactivity.
Phoenix – AwardBIOS CMOS Setup Utility
Power Management Setup
Power Management User Define
PM Control by APM Yes
Video Off Option Susp,stby -> Off Menu Level
Video Off Method V/H SYNC+Blank
** PM Times **
HDD Power Down Disable
Doze Time-Out Disable
Standby time-Out Disable
Suspend Time-Out Disable
** PM Events **
DMA Request (DRQ) Disable
PCI Master device (PCIM) Disable
Parallal I/O (PIO) Disable
Serial I/O (SIO) Disable
Keyboard (KBD) Enable
Floopy Disk Controller Disable
Hard Disk Controller Disable
IRQ 15 – 1 Detection Enable
IRQ ) Detection Disable
: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help
F5: Previous Values F7: Optimized Defaults
Item Help
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Power Management
This item is to select the Power Management mode.
The choice: Standby Mode, HDD Power Down
PM Control by APM
When enabled, an Advanced Power Management device will be
activated to enhance the Max. Power Saving mode and stop the
CPU internal clock. If Advance Power Management (APM) is
installed on the system, selecting “Yes” gives better power
savings. If the Max. Power Saving is not enabled, this will be
preset to “No”.
Video Off Method
This determines the manner in which the monitor is blanked.
V/H SYNC +
Blank
This causes the system to turn off the vertical and
horizontal synchronization ports and write blanks
to the video buffer.
Select this option if your monitor supports the
Display Power Management Signaling (DPMS)
DPMS
standard of the Video Electronics Standards to
select video power management values.
Blank
Screen
This option only writes blanks to the video buffer.
Parallel I/O(PIO)?Serial I/O(SIO)/Keyboard(KBD)
When select PIO/SIO enable, any activity from one of the listed
system peripheral devices or IRQs wakes up the system.
Floppy Disk Controller/Hard Disk Contorller
When select enable, any activity from one of the listed
system peripheral devices wakes up the system.
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4.2.6 PNP/PCI Configuration
This section describes the PCI bus system configuration. PCI or
Personal Computer Interconnect is a system which allows I/O
devices to operate at speeds nearing the speed of the CPU
when communicating with its own special components. This
section covers some very technical items, and it is strongly
recommended that only experienced users should make
changes to the default settings.
Phoenix – AwardBIOS CMOS Setup Utility
PnP/PCI Configurations
Reset Configuration Data Disabled
Resources Controlled By Auto (ESCD) Menu Level
IRQ Resources Press Enter
DMA Resources Press Enter Select Yes if you are
using a Plug and play
PCI/VGA Palette Snoop Disabled capable operating
system select No if
you need the BIOS to
configure non-boot
devices
: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help
F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults
Item Help
Reset Configuration Data
Normally, this field is “Disabled”. Select “Enabled” to reset
Extended System Configuration Data (ESCD). When exiting Setup
or installed a new add-on, the system reconfiguration has caused
such a serious conflict that the operating system cannot boot. The
options available are Enabled and Disabled.
Configure all of the boot and Plug and Play compatible devices.
However, this capability means absolutely nothing unless a Plug
and Play operating system is used such as Windows95. The
options available are Auto and Manual.
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
Resource controlled by
The Award Plug and Play BIOS has the capacity to automatically
configure all of the boot and the Plug and Play compatible devices.
However, this capability means absolutely nothing unless using a
Plug and Play operating system such as Windows98. The
options available are Auto and Manual.
IRQ Resources
When resources are controlled manually, assign each system
interrupt a type, depending on the type of device using the interrupt.
DMA Resources
When resources are controlled manually, assign each system DMA
channel as one of the following types, depending on the type of
device using the interrupt:
Legacy ISA Devices compliant with the original PC AT
bus specification, requiring a specific DMA channel.
PCI/ISA PnP Devices compliant with the Plug and Play
standard, whether designed for PCI or ISA bus
architecture.
The default value is “PCI/ISA PnP”.
PCI/VGA Palette Snoop
Leave this field at “Disabled”.
The choice: Enabled, Disabled.
Award BIOS Utility
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
4.2.7 Set Password
ENTER PASSWORD:
Type the password with eight characters at most, and press
<Enter>. The password typed will now clear any previously
entered password from CMOS memory. Then, confirm the
password by typing the password again and pressing <Enter>.
Or, not enter a password and abort the selection by pressing
<Esc>.
To disable the password by pressing <Enter> without typing in
any password when the message “Enter Password” is showed.
Then, message below will appear to confirm that the password
has been disabled.
PASSWORD DISABLED.
Once the password is disabled, the system will boot and enter
Setup freely.
When a password is enabled, it has to be typed to enter the
Setup every time. This prevents any unauthorized person from
changing the system configuration.
Additionally when a password is enabled, the BIOS can also set
to request a password every time the system reboots. This
would prevent unauthorized use of the computer.
The user can determine when the password is required within
the BIOS Features Setup Menu and its Security option. If the
Security option is set to “System”, the password is required
during boot up and entry into Setup. If it set as “Setup”,
prompting will only occur prior to entering Setup.
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Award BIOS Utility
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
4.2.8 Save & Exit Setup
This is to determine whether or not to accept the modifications.
Typing “Y” quits the setup utility and saves all changes into the
CMOS memory. Typing “N” brigs back to Setup utility.
Phoenix – AwardBIOS CMOS Setup Utility
Standard CMOS Features
Advanced BIOS Features Load Optimized Defaults
PnP/PCI Configurations
Advanced C
Integrated P
Power Management Setup Exit Without Saving
Esc : Quit : Select Item
F10 : Save & Exit Setup
SAVE to CMOS and EXIT (Y/N)? Y
4.2.9 Exit Without Saving
Select this option to exit the Setup utility without saving the
changes made in this session. Typing “Y” will quit the Setup
utility without saving the modifications. Typing “N” will return to
Setup utility.
Phoenix – AwardBIOS CMOS Setup Utility
Standard CMOS Features
Advanced BIOS Features Load Optimized Defaults
Advanced C
Integrated P
Power Management Setup Exit Without Saving
Esc : Quit : Select Item
F10 : Save & Exit Setup
Quit Without Saving (Y/N)? N
PnP/PCI Configurations
Award BIOS Utility
Abandon all Datas
49
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
A p p e n d i x A
Watchdog Timer
Using the Watchdog Function
The SBC82400 CPU card uses version 2.0 of the watchdog
timer. This onboard WDT generates either a system reset or
non-maskable interrupt (NMI), depending on the settings made
on jumper JP18 of SBC82400. Follow the steps below to enable
and program the watchdog function of SBC82400.
Start
↓
Un-Lock WDT : OUT 120H 0AH ; enter WDT function
OUT 120H 0BH ; enable WDT function
↓
Set multiple (1~4) : OUT 120 0NH ; N=1,2,3 or 4
↓
Set base timer (0~F) : OUT 121 0MH ; M=0,1,2,…F
↓
WDT counting
↓
re-set timer : OUT 121 0MH ; M=0,1,2,…F
↓
IF No re-set timer : WDT time-out, generate RESET or NMI
↓
IF to disable WDT : OUT 120 00H ; Can be disable at any time
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Watchdog Timer
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SBC82400 ISA Half-Size CPU Board Series User’s Manual
M
A
C
D
1 2 3 4
0
1
2
3
4
5
6
7
8
9
0.5 sec. 5 secs. 50 secs. 100 secs.
1 sec. 10 secs. 100 secs. 200 secs.
1.5 secs. 15 secs. 150 secs. 300 secs.
2 secs. 20 secs. 200 secs. 400 secs.
2.5 secs. 25 secs. 250 secs. 500 secs.
3 secs. 30 secs. 300 secs. 600 secs.
3.5 secs. 35 secs. 350 secs. 700 secs.
4 secs. 40 secs. 400 secs. 800 secs.
4.5 secs. 45 secs. 450 secs. 900 secs.
5 secs. 50 secs. 500 secs. 1000 secs.
5.5 secs. 55 secs. 550 secs. 1100 secs.
B
6 secs. 60 secs. 600 secs. 1200 secs.
6.5 secs. 65 secs. 650 secs. 1300 secs.
7 secs. 70 secs. 700 secs. 1400 secs.
E
F
7.5 secs. 75 secs. 750 secs. 1500 secs.
8 secs. 80 secs. 800 secs. 1600 secs.
N
Watchdog Timer
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