MB875
Intel® 852GM Chipset
Custom Motherboard
for 1U Rackmount
USER’S MANUAL
Version 1.0
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Table of Contents
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The MB875 Motherboard
The MB875 Edge Connectors
iv
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INTRODUCTION
Introduction
Product Description
The MB875 is a versatile motherboard with four Gigabit Ethernets that is
designed for SOHO network security applications. Optimized for network
performance, this scalable platform is based on the Intel(R) 852GM chipset
and supports Intel(R) Pentium(R) M / Celeron(R) M processors of up to
2.0GHz speeds with front size bus of 400MHz. System memory can support
up to 2GB of DDR266 DIMM modules.
The MB875 uses the highly efficient Intel(R) 82541PI Ethernet providing
robust Gigabit networking with enhanced power management and consumes
less than 1.0W of power at Gigabit speeds. It supports intensive networking
communication required by firewall or VPN and offers bypass function
support on LAN1 and LAN2 to ensure high network availability.
To provide the best utilization and performance, the platform provides a
number storage interfaces including two IDE ports, two SATA ports, four
USB ports and a CompactFlash socket. One PCI 32-bit/33MHz Golden
Finger and one Mini-PCI slot are available for expansion. Furthermore, it
features status / alarm LED and a factory-default button that can be flexibly
configured to create features for ISVs. The MB875 motherboards are now
available to purchase.
MB875 FEATURES
•
•
•
•
•
•
•
Supports Pentium(R) M / Celeron(R) M processors
Up to 2.0GHz, 400MHz FSB
DDR DIMM x 2, Max. 2GB
Integrated VGA for CRT, shared memory
Integrated four Gigabit Ethernet
4 x COM, 4 x USB 2.0 ports, 2 x SATA, CF socket
1 x PCI, 1 x Mini PCI slot, Watchdog timer
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INTRODUCTION
Checklist
Your MB875 package should include the items listed below.
•
The MB875 Pentium® M Mini-ITX motherboard
• This User’s Manual
• 1 CD containing chipset drivers and flash memory utility
• Option Cable
VGA4K
USB2K-4
PK1-2K
PK1K
PS2D
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INTRODUCTION
MB875 Specifications
[
Intel ULV Celeron M CPU or Intel Pentium M CPU
0.700V ~ 1.708V
600MHz
400MHz
512K Level 2 (CPU integrated)
BGA on board or socket 479
Intel 852GM Chipset:
GMCH: 852GM 732-pin mFCBGA
ICH4: 82801DB 421-pin BGA,
APM1.2
Award BIOS, supports ACPI Function
Two DDR266/333 DIMM sockets, support up to 2GB
SDRAM
CPU Type
CPU Voltage
CPU Speed
CPU FSB
Cache
CPU Socket
Chipset
Green /APM
BIOS
Memory
2x8 pins pin-header x 1 for VGA
Intel 82541PI gigabit Ethernet x 4
[ LAN1 & LAN2 Bypass ]
VGA
LAN
Intel ICH4 built-in USB2.0 controller, supports 6 ports
USB
-
-
2 ports @front of unit for USB_0,1
1x 4 pins pin-header x 2 for USB_2,3
Silicon Image SiL3512 PCI to 2 SATA (1.5Gb/s) ports
Two channels; support Ultra DMA 33/66/100
Winbond W83627HF: COM1/2 (RS232), PS/2
Keyboard/Mouse controller & Hardware monitor (3
thermal inputs, 6 voltage monitor inputs, 3 Fan Headers).
Fintek 81216 : COM3/4
SATA
IDE Interface
LPC I/O
Intel ICH4 built-in RTC with onboard Lithium Battery
DB9 (male) x1 for COM1 (console port)
Dual USB stack connector x1 for USB 0, 1
RJ45 (w/ dual status LED) x 4
GPInput Switch x 1
Power LED x 1 (Green x 1 )
RTC/CMOS
Edge
Connectors /
LED / Button
@front side
HDD Access LED x 1 (Red x 1 )
GPO LED 1/2 x 2 (Green x 1, Red x 1 )
SATA connector x2 for SATA HDD
On Board
Connectors /
Headers
40 pins, 2.54mm, box-header x1 for IDE1
44 pins, 2.0mm, box-header x1 for IDE1
Compact flash type II socket x1 for CF on IDE2 bus
10 pins, 2.54mm, pin-header x1 for PS/2 KB/mouse
2 pins, 2.54mm, pin-header x 1 for Reset button
PCI (33MHz/32-bit) slot x1
Expansion
Mini PCI x 1
ATX power connector
Power Connector
Dimensions
180mm x 270mm
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INTRODUCTION
Board Dimensions
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INSTALLATIONS
Installations
This section provides information on how to use the jumpers and
connectors on the MB875 in order to set up a workable system. The
topics covered are:
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INSTALLATIONS
Installing the CPU
The MB875 board supports a Socket 479 processor socket for Intel®
Pentium® M or Celeron® M processors.
The processor socket comes with a screw to secure the processor. As
shown in the left picture below, loosen the screw first before inserting
the processor. Place the processor into the socket by making sure the
notch on the corner of the CPU corresponds with the notch on the inside
of the socket. Once the processor has slide into the socket, fasten the
screw. Refer to the figures below.
NOTE: Ensure that the CPU heat sink and the CPU top surface are in
total contact to avoid CPU overheating problem that would
cause your system to hang or be unstable.
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INSTALLATIONS
Installing the Memory
The MB875 board supports one DDR memory sockets for a maximum
total memory of 1GB in DDR memory type. The memory module
capacities supported are 128MB, 256MB, 512MB and 1GB. The
following table lists the supported DDR DIMM configurations. Intel®
852GM supports configurations defined in the JEDEC DDR DIMM
specification only. Non-JEDEC standard DIMMs such as double-sided
x16 DDR SDRAM DIMMs are not supported.
Installing and Removing Memory Modules
To install the DDR modules, locate the memory slot on the board and
perform the following steps:
1. Hold the DDR module so that the key of the DDR module align with
those on the memory slot.
2. Gently push the DDR module in an upright position until the clips of
the slot close to hold the DDR module in place when the DDR module
touches the bottom of the slot.
3. To remove the DDR module, press the clips with both hands.
Lock
Lock
DDR Module
Lock
Lock
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INSTALLATIONS
Setting the Jumpers
Jumpers are used on MB875 to select various settings and features
according to your needs and applications. Contact your supplier if you
have doubts about the best configuration for your needs. The following
lists the connectors on MB875 and their respective functions.
JP2: Power Mode Setting............................錯誤! 尚未定義書籤。
JP3: LVDS Power Setting ..........................錯誤! 尚未定義書籤。
JP4: 1394 Controller EEPROM Write Protect錯誤! 尚未定義書籤。
JP6, JP7, JP8: RS232/422/485 (COM2) Selection錯誤! 尚未定義書籤。
JP9: COM2 RS232 Pin9 Setting.................錯誤! 尚未定義書籤。
JP10: COM1 RS232 Pin9 Setting...............錯誤! 尚未定義書籤。
JP11: Clear CMOS Contents ......................錯誤! 尚未定義書籤。
JP13: Compact Flash Mode Setting............錯誤! 尚未定義書籤。
J13: Intel® 82541GI Gigabit LAN Enable/Disable錯誤! 尚未定義書籤。
JP14: CPU VCCA Voltage Setting............................................... 12
SW1: FSB / DDR Setting ............................................................. 12
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INSTALLATIONS
Jumper Locations on MB875
Jumpers on MB875...........................................................................Page
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INSTALLATIONS
JP1: Clear CMOS Contents
Use JP1 to clear the CMOS contents. Note that the ATX-power
connector should be disconnected from the board before clearing
CMOS.
JP1
Setting
Function
Pin 1-2
Short/Closed
Normal
Pin 2-3
Short/Closed
Clear CMOS
JP2: Watchdog Timer Settings
JP2 Setting
Function
Ethernet default: Eth0 & Eth1 None Bypass.
System will bypass LANs upon the timeout
of Watchdog timer
Pin 1-3 & 2-4
Short
Ethernet default: Eth0 & Eth1 Bypass mode.
System will not bypass LANs upon the
timeout of Watchdog timer
Pin 1/2/3/4
Open
Pin 1-2 & 3-4
Short
System will reboot upon the timeout of
Watchdog timer. (Default)
Jumper
Function
1-2, 3-4 Open
1-2, 3-4 Short
System will bypass LANs upon the timeout of WDT timer
System will reboot upon the timeout of WDT timer
*
JP4: Compact Flash Slave/Master
JP4
Compact Flash
Slave
Open
Close
Master
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INSTALLATIONS
JP5: Processor Operating Frequency
CPU Operating
JP5
Frequency
133MHz
Open
Close
100MHz (default)
JP7: Power ON Setting
JP7
Setting
Function
Pin 1-2
Short/Closed
Power on by system
button
Pin 2-3
Short/Closed
Power on by power
supply AC on
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INSTALLATIONS
Connectors on MB875
The connectors on MB875 allows you to connect external devices such
as keyboard, floppy disk drives, hard disk drives, printers, etc. The
following table lists the connectors on MB875 and their respective
functions.
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INSTALLATIONS
Connector Locations on MB875
Connectors on MB875......................................................................Page
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INSTALLATIONS
J1: VGA CRT Connector
Signal Name Pin Pin Signal Name
R
G
B
1
3
5
2
4
6
+5V
GND
NC
NC
7
9
11
13
15
8
SPD1
Hsync
Vsync
SPCLK
GND
GND
GND
GND
10
12
14
J2: COM2 Serial Port
Pin #
1
2
3
4
Signal Name (RS-232)
DCD, Data carrier detect
RXD, Receive data
TXD, Transmit data
DTR, Data terminal ready
Ground
5
6
7
8
9
DSR, Data set ready
RTS, Request to send
CTS, Clear to send
RI, Ring indicator
No Connect.
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J4: USB Connector
Signal Name Pin #
Pin # Signal Name
Vcc
1
2
3
4
5
6
7
8
Ground
USB3+
USB3-
Vcc
USB2-
USB2+
Ground
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INSTALLATIONS
J5: SATA HDD Connector
Pin #
Signal Name
1
2
3
4
5
6
7
Ground
TX+
TX-
Ground
RX-
RX+
Ground
J6: SATA HDD Connector
Pin #
Signal Name
Ground
TX+
1
2
3
4
5
6
7
TX-
Ground
RX-
RX+
Ground
J7: COM3 Serial Port
Pin #
Signal Name (RS-232)
DCD, Data carrier detect
RXD, Receive data
TXD, Transmit data
DTR, Data terminal ready
Ground
1
2
3
4
5
6
7
8
9
DSR, Data set ready
RTS, Request to send
CTS, Clear to send
RI, Ring indicator
No Connect.
10
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INSTALLATIONS
J8: COM4 Serial Port
Pin #
1
2
3
4
Signal Name (RS-232)
DCD, Data carrier detect
RXD, Receive data
TXD, Transmit data
DTR, Data terminal ready
Ground
5
6
7
8
9
DSR, Data set ready
RTS, Request to send
CTS, Clear to send
RI, Ring indicator
No Connect.
10
J9: Case Open Detect Header
Pin #
Signal Name
1
2
Case Open Detect
Ground
J10: ATX Power Connector
11
1
Signal Name Pin # Pin # Signal Name
3.3V
-12V
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
3.3V
3.3V
Ground
+5V
Ground
+5V
Ground
Power good
5VSB
Ground
PS-ON
Ground
Ground
Ground
-5V
20
10
+5V
+5V
10
+12V
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INSTALLATIONS
J11: Keyboard / Mouse Connector
J11, a 10-pin header connector, has functions for both keyboard and
mouse. The following table shows the pin assignments of this connector.
Signal Name Pin # Pin # Signal Name
Protect pin
KB clock
KB data
Vcc
10
9
8
7
6
5
4
3
2
1
N.C.
Mouse clock
Mouse data
Vcc
Ground
Ground
J12: Power On & Reset Headers
Pin #
1
2
Signal Name
PS_ON#
Ground
Pin #
3
4
Signal Name
RESET#
Ground
SW1: Digital I/O Input Pin Switch
LED1: Digital IO Output LED
LED2: HDD / Power LED
Red: HDD LED
Green: Power LED
CN2, CN3, CN4, CN5: LAN Connectors
CN2: LAN1
CN3: LAN2
CN4: LAN3
CN5: LAN4
CN6: USB Connector
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INSTALLATIONS
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BIOS SETUP
BIOS Setup
This chapter describes the different settings available in the Award
BIOS that comes with the board. The topics covered in this chapter are
as follows:
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BIOS SETUP
BIOS Introduction
The Award BIOS (Basic Input/Output System) installed in your
computer system’s ROM supports Intel processors. The BIOS provides
critical low-level support for a standard device such as disk drives, serial
ports 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.
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 you turn on the computer, the Award BIOS is
immediately activated. Pressing the <Del> key immediately allows you
to enter the Setup utility. If you are a little bit late pressing the <Del>
key, POST (Power On Self Test) will continue with its test routines, thus
preventing you from invoking the Setup. If you still wish to enter Setup,
restart the system by pressing the ”Reset” button or simultaneously
pressing the <Ctrl>, <Alt> and <Delete> keys. You can also restart by
turning the system Off and back On again. The following message will
appear on the screen:
Press <DEL> to Enter Setup
In general, you press the arrow keys to highlight items, <Enter> to
select, the <PgUp> and <PgDn> keys to change entries, <F1> for help
and <Esc> to quit.
When you enter the Setup utility, the Main Menu screen will appear on
the screen. The Main Menu allows you to select from various setup
functions and exit choices.
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BIOS SETUP
Phoenix - AwardBIOS CMOS Setup Utility
Standard CMOS Features
Frequency/Voltage Control
Advanced BIOS Features
Advanced Chipset Features
Integrated Peripherals
Power Management Setup
PnP/PCI Configurations
PC Health Status
Load Fail-Safe Defaults
Load Optimized Defaults
Set Supervisor Password
Set User Password
Save & Exit Setup
Exit Without Saving
ESC : Quit
Ç È Æ Å : Select Item
F10 : Save & Exit Setup
Time, Date, Hard Disk Type…
The section below the setup items of the Main Menu displays the control
keys for this menu. At the bottom of the Main Menu just below the
control keys section, there is another section, which displays information
on the currently highlighted item in the list.
Note:
If the system cannot boot after making and saving system
changes with Setup, the Award BIOS supports an override to
the CMOS settings that resets your system to its default.
Warning: It is strongly recommended that you avoid making any
changes to the chipset defaults. These defaults have been
carefully chosen by both Award and your system
manufacturer to provide the absolute maximum performance
and reliability. Changing the defaults could cause the system
to become unstable and crash in some cases.
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BIOS SETUP
Standard CMOS Setup
“Standard CMOS Setup” choice allows you to record some basic
hardware configurations in your computer system and set the system
clock and error handling. If the motherboard is already installed in a
working system, you will not need to select this option. You will need to
run the Standard CMOS option, however, if you change your system
hardware configurations, the onboard battery fails, or the configuration
stored in the CMOS memory was lost or damaged.
Phoenix - AwardBIOS CMOS Setup Utility
Standard CMOS Features
Date (mm:dd:yy)
Time (hh:mm:ss)
Wed, Apr 28, 2004
00 : 00 : 00
Item Help
Menu Level >
IDE Primary Master
IDE Primary Slave
None
None
None
None
Change the day, month,
Year and century
IDE Secondary Master
IDE Secondary Slave
Drive A
Drive B
1.44M, 3.5 in.
None
Video
EGA/VGA
All Errors
Halt On
Base Memory
640K
Extended Memory
Total Memory
129024K
130048K
At the bottom of the menu are the control keys for use on this menu. If
you need any help in each item field, you can press the <F1> key. It will
display the relevant information to help you. 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
describes each item of this menu.
Date
The date format is:
Day :
Sun to Sat
1 to 12
1 to 31
Month :
Date :
Year :
1999 to 2099
To set the date, highlight the “Date” field and use the PageUp/
PageDown or +/- keys to set the current time.
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BIOS SETUP
Time
The time format is: Hour : 00 to 23
Minute : 00 to 59
Second : 00 to 59
To set the time, highlight the “Time” field and use the <PgUp>/ <PgDn>
or +/- keys to set the current time.
IDE Primary HDDs / IDE Secondary HDDs
The onboard PCI IDE connectors provide Primary and Secondary
channels for connecting up to four IDE hard disks or other IDE devices.
Each channel can support up to two hard disks; the first is the “Master”
and the second is the “Slave”.
Press <Enter> to configure the hard disk. The selections include Auto,
Manual, and None. Select ‘Manual’ to define the drive information
manually. You will be asked to enter the following items.
CYLS :
HEAD :
PRECOMP :
LANDING ZONE :
SECTOR :
Number of cylinders
Number of read/write heads
Write precompensation
Landing zone
Number of sectors
The Access Mode selections are as follows:
CHS (HD < 528MB)
LBA (HD > 528MB and supports
Logical Block Addressing)
Large (for MS-DOS only)
Auto
Remarks: The main board supports two serial ATA ports and are
represented in this setting as IDE Channel 2 / 3 Master.
Drive A / Drive B
These fields identify the types of floppy disk drive A or drive B that has
been installed in the computer. The available specifications are:
360KB 1.2MB 720KB 1.44MB 2.88MB
5.25 in. 5.25 in. 3.5 in.
3.5 in.
3.5 in.
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BIOS SETUP
Video
This field selects the type of video display card installed in your system.
You can choose the following video display cards:
EGA/VGA
For EGA, VGA, SEGA, SVGA
or PGA monitor adapters. (default)
Power up in 40 column mode.
Power up in 80 column mode.
For Hercules or MDA adapters.
CGA 40
CGA 80
MONO
Halt On
This field determines whether or not the system will halt if an error is
detected during power up.
No errors
The system boot will not be halted for any error
that may be detected.
All errors
Whenever the BIOS detects a non-fatal error,
the system will stop and you will be prompted.
The system boot will not be halted for a
keyboard error; it will stop for all other errors
The system boot will not be halted for a disk
error; it will stop for all other errors.
All, But Keyboard
All, But Diskette
All, But Disk/Key
The system boot will not be halted for a key-
board or disk error; it will stop for all others.
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BIOS SETUP
Advanced BIOS Features
This section allows you to configure and improve your system and
allows you to set up some system features according to your preference.
Phoenix - AwardBIOS CMOS Setup Utility
Advanced BIOS Features
CPU Feature
Press Enter
Disabled
Enabled
Enabled
Enabled
Floppy
HDD-0
CDROM
Enabled
Disabled
Disabled
On
ITEM HELP
Menu Level >
Virus Warning
CPU L1 and L2 Cache
CPU L3 Cache
Quick Power On Self Test
First Boot Device
Second Boot Device
Third Boot Device
Boot Other Device
Swap Floppy Drive
Boot Up Floppy Seek
Boot Up NumLock Status
Gate A20 Option
Fast
Typematic Rate Setting
Typematic Rate (Chars/Sec)
Typematic Delay (Msec)
Security Option
Disabled
6
250
Setup
APIC Mode
Enabled
1.4
Non-OS2
Yes
MPS Version Control for OS
OS Select For DRAM>64MB
Report No FDD For WIN 95
Small Logo (EPA) Show
Enabled
CPU Feature
Press Enter to configure the settings relevant to CPU Feature.
Virus Warning
If this option is enabled, an alarm message will be displayed when trying
to write on the boot sector or on the partition table on the disk, which is
typical of the virus.
CPU L1 and L2 Cache / CPU L3 Cache
Cache memory is additional memory that is much faster than
conventional DRAM (system memory). CPUs from 486-type on up
contain internal cache memory, and most, but not all, modern PCs have
additional (external) cache memory. When the CPU requests data, the
system transfers the requested data from the main DRAM into cache
memory, for even faster access by the CPU. By default, these items are
Enabled.
Quick Power On Self Test
When enabled, this field speeds up the Power On Self Test (POST) after
the system is turned on. If it is set to Enabled, BIOS will skip some
items.
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BIOS SETUP
First/Second/Third Boot Device
These fields determine the drive that the system searches first for an
operating system. The options available include Floppy, LS120, HDD-0,
SCSI, CDROM, HDD-1, HDD-2, HDD-3, ZIP100, USB-FDD,
USB-CDROM, USB-HDD and Disable.
Boot Other Device
These fields allow the system to search for an OS from other devices
other than the ones selected in the First/Second/Third Boot Device.
Swap Floppy Drive
This item allows you to determine whether or not to enable Swap Floppy
Drive. 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.
Boot Up Floppy Seek
This feature controls whether the BIOS checks for a floppy drive while
booting up. If it cannot detect one (either due to improper configuration
or its absence), it will flash an error message.
Boot Up NumLock Status
This allows you to activate the NumLock function after you power up
the system.
Gate A20 Option
This field allows you to select how Gate A20 is worked. Gate A20 is a
device used to address memory above 1 MB.
Typematic Rate Setting
When disabled, continually holding down a key on your keyboard will
generate only one instance. When enabled, you can set the two typematic
controls listed next. By default, this field is set to Disabled.
Typematic Rate (Chars/Sec)
When the typematic rate is enabled, the system registers repeated
keystrokes speeds. Settings are from 6 to 30 characters per second.
Typematic Delay (Msec)
When the typematic rate is enabled, this item allows you to set the time
interval for displaying the first and second characters. By default, this
item is set to 250msec.
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BIOS SETUP
Security Option
This field allows you to limit access to the System and Setup. The default
value is Setup. When you select System, the system prompts for the User
Password every time you boot up. When you select Setup, the system
always boots up and prompts for the Supervisor Password only when the
Setup utility is called up.
APIC Mode
APIC stands for Advanced Programmable Interrupt Controller. The
default setting is Enabled.
MPS Version Control for OS
This option is specifies the MPS (Multiprocessor Specification) version
for your operating system. MPS version 1.4 added extended
configuration tables to improve support for multiple PCI bus
configurations and improve future expandability. The default setting is
1.4.
OS Select for DRAM > 64MB
This option allows the system to access greater than 64MB of DRAM
memory when used with OS/2 that depends on certain BIOS calls to
access memory. The default setting is Non-OS/2.
Report No FDD For WIN 95
If you are using Windows 95/98 without a floppy disk drive, select
Enabled to release IRQ6. This is required to pass Windows 95/98's SCT
test. You should also disable the Onboard FDC Controller in the
Integrated Peripherals screen when there's no floppy drive in the system.
If you set this feature to Disabled, the BIOS will not report the missing
floppy drive to Win95/98.
Small Logo (EPA) Show
The EPA logo appears at the right side of the monitor screen when the
system is boot up. The default setting is Enabled.
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BIOS SETUP
Advanced Chipset Features
This Setup menu controls the configuration of the chipset.
Phoenix - AwardBIOS CMOS Setup Utility
Advanced Chipset Features
DRAM Timing Selectable
CAS Latency Time
By SPD
ITEM HELP
Menu Level >
2
Active to Precharge Delay
DRAM RAS# to CAS# Delay
DRAM RAS# Precharge
DRAM Data Integrity Mode
MGM Core Frequency
System BIOS Cacheable
Video BIOS Cacheable
Memory Hole at 15M-16M
Delayed Transaction
6
3
3
ECC
Auto Max 266MHz
Enabled
Enabled
Disabled
Enabled
16 Min
Delay Prior to Thermal
AGP Aperture Size (MB)
64
** On-Chip VGA Setting **
On-Chip VGA
On-Chip Frame Buffer Size
Boot Display
Enabled
32MB
CRT+DVI
Off
TV Standard
Video Connector
TV Format
Automatic
Auto
Panel Scaling
Auto
Panel Number
1024x768 18bit SC
DRAM Timing Selectable
This option refers to the method by which the DRAM timing is selected.
The default is By SPD.
CAS Latency Time
You can configure CAS latency time in HCLKs as 2 or 2.5 or 3. The
system board designer should set the values in this field, depending on
the DRAM installed. Do not change the values in this field unless you
change specifications of the installed DRAM or the installed CPU.
Active to Precharge Delay
The default setting for the Active to Precharge Delay is 7.
DRAM RAS# to CAS# Delay
This option allows you to insert a delay between the RAS (Row Address
Strobe) and CAS (Column Address Strobe) signals. This delay occurs
when the SDRAM is written to, read from or refreshed. Reducing the
delay improves the performance of the SDRAM.
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BIOS SETUP
DRAM RAS# Precharge
This option sets the number of cycles required for the RAS to
accumulate its charge before the SDRAM refreshes. The default setting
for the Active to Precharge Delay is 3.
DRAM Data Integrity Mode
Select ECC if your memory module supports it. The memory controller
will detect and correct single-bit soft memory errors. The memory
controller will also be able to detect double-bit errors though it will not
be able to correct them. This provides increased data integrity and
system stability.
MGM Core Frequency
This field sets the frequency of the DRAM memory installed. The
default setting is Auto Max 266MHz.
System BIOS Cacheable
The setting of Enabled allows caching of the system BIOS ROM at
F000h-FFFFFh, resulting in better system performance. However, if
any program writes to this memory area, a system error may result.
Video BIOS Cacheable
The Setting Enabled allows caching of the video BIOS ROM at
C0000h-F7FFFh, resulting in better video performance. However, if
any program writes to this memory area, a system error may result.
Memory Hole At 15M-16M
In order to improve performance, certain space in memory can be
reserved for ISA cards. This memory must be mapped into the memory
space below 16 MB. The choices are Enabled and Disabled.
Delayed Transaction
The chipset has an embedded 32-bit posted write buffer to support delay
transactions cycles. Select Enabled to support compliance with PCI
specification version 2.1.
Delay Prior to Thermal
This field activates the CPU thermal function after the systems boots for
the set number of minutes. The options are 16Min and 64Min.
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BIOS SETUP
AGP Aperture Size
The field sets aperture size of the graphics. The aperture is a portion of
the PCI memory address range dedicated for graphics memory address
space. Host cycles that hit the aperture range are forwarded to the AGP
without any translation. The default setting is 64M.
On-Chip VGA
The default setting is Enabled.
On-Chip Frame Buffer Size
The default setting is 32MB. The options available include 1MB, 4MB,
8MB and 16MB.
Boot Display
The default setting is CRT+DVI. The options available include some
combinations with LVDS and TV-out. The MB875 supports dual view
(CRT with LVDS or TV-out).
TV Standard (on MB875F/FC version only)
The default setting is Off.
Video Connector (on MB875F/FC version only)
The default setting is Automatic.
TV Format (on MB875F/FC version only)
The default setting is Auto.
Panel Scaling
The default setting is Auto. The options available include On and Off.
Panel Number
These fields allow you to select the LCD Panel type. The defaults:
640x480
800x600
18bit SC
18bit SC
18bit SC
24bit DC
18bit DC
24bit SC
24bit DC
18bit DC
1024x768
1280x1024
1400x1050
1024x768
1600x1200
1280x1024
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BIOS SETUP
Integrated Peripherals
This section sets configurations for your hard disk and other integrated
peripherals. The first screen shows three main items for user to select.
Once an item selected, a submenu appears. Details follow.
Phoenix - AwardBIOS CMOS Setup Utility
Integrated Peripherals
Press Enter
Press Enter
Press Enter
ITEM HELP
Menu Level >
OnChip IDE Device
Onboard Device
SuperIO Device
Phoenix - AwardBIOS CMOS Setup Utility
OnChip IDE Device
Enabled
ITEM HELP
Menu Level >
On-Chip Primary PCI IDE
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Primary Master UDMA
IDE Primary Slave UDMA
On-Chip Secondary PCI IDE
IDE Secondary Master PIO
IDE Secondary Slave PIO
IDE Secondary Master UDMA
IDE Secondary Slave UDMA
Auto
Auto
Auto
Auto
Enabled
Auto
Auto
Auto
Auto
Enabled
IDE HDD Block Mode
Phoenix - AwardBIOS CMOS Setup Utility
Onboard Device
Enabled
ITEM HELP
USB Controller
Enabled
Disabled
Disabled
Menu Level >
USB 2.0 Controller
USB Keyboard Support
USB Mouse Support
AC97 Audio
Auto
Init Display First
Power On After Fail
PCI Slot
Off
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BIOS SETUP
Phoenix - AwardBIOS CMOS Setup Utility
SuperIO Device
ITEM HELP
Menu Level >
Onboard FDC Controller
Onboard Serial Port 1
Onboard Serial Port 2
UART Mode Select
RxD , TxD Active
Enabled
3F8/IRQ4
2F8/IRQ3
Normal
Hi, Lo
IR Transmission Delay
UR2 Duplex Mode
Use IR Pins
Onboard Parallel Port
Parallel Port Mode
EPP Mode Select
Disabled
Half
IR-Rx2Tx2
378/IRQ7
SPP
EPP1.7
3
ECP Mode Use DMA
OnChip Primary/Secondary PCI IDE
The integrated peripheral controller contains an IDE interface with
support for two IDE channels. Select Enabled to activate each channel
separately.
IDE Primary/Secondary Master/Slave PIO
These fields allow your system hard disk controller to work faster.
Rather than have the BIOS issue a series of commands that transfer to or
from the disk drive, PIO (Programmed Input/Output) allows the BIOS to
communicate with the controller and CPU directly.
The system supports five modes, numbered from 0 (default) to 4, which
primarily differ in timing. When Auto is selected, the BIOS will select
the best available mode.
IDE Primary/Secondary Master/Slave UDMA
These fields allow your system to improve disk I/O throughput to
33Mb/sec with the Ultra DMA/33 feature. The options are Auto and
Disabled.
IDE HDD Block Mode
This field allows your hard disk controller to use the fast block mode to
transfer data to and from your hard disk drive.
USB Controller
The options for this field are Enabled and Disabled. By default, this field
is set to Enabled.
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BIOS SETUP
USB 2.0 Controller
The options for this field are Enabled and Disabled. By default, this field
is set to Enabled. In order to use USB 2.0, necessary OS drivers must be
installed first. Please update your system to Windows 2000 SP4 or
Windows XP SP1.
USB Keyboard Support
The options for this field are Enabled and Disabled. By default, this field
is set to Disabled.
USB Mouse Support
The options for this field are Enabled and Disabled. By default, this field
is set to Disabled.
AC97 Audio
The default setting of the AC97 Audio is Auto.
Init Display First
The default setting is PCI Card.
Power On After Fail
The setting configures the system power on status when power is
restored to the system after a power failure occurrence. The default
setting is Off.
Onboard FDC Controller
Select Enabled if your system has a floppy disk controller (FDC)
installed on the motherboard and you wish to use it. If you install an
add-in FDC or the system has no floppy drive, select Disabled in this
field. This option allows you to select the onboard FDD port.
Onboard Serial/Parallel Port
These fields allow you to select the onboard serial and parallel ports and
their addresses. The default values for these ports are:
Serial Port 1
Serial Port 2
Parallel Port
3F8/IRQ4
2F8/IRQ3
378H/IRQ7
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BIOS SETUP
UART Mode Select
This field determines the UART 2 mode in your computer. The default
value is Normal. Other options include IrDA and ASKIR.
Parallel Port Mode
This field allows you to determine parallel port mode function.
SPP
EPP
ECP
Standard Printer Port
Enhanced Parallel Port
Extended Capabilities Port
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BIOS SETUP
Power Management Setup
The Power Management Setup allows you to save energy of your system
effectively.
Phoenix - AwardBIOS CMOS Setup Utility
Power Management Setup
ATX
ITEM HELP
Power-Supply Type
ACPI Function
Enabled
User Define
V/H SYNC+Blank
Yes
Menu Level >
Power Management
Video Off Method
Video Off In Suspend
Suspend Type
Stop Grant
3
Modem Use IRQ
Suspend Mode
Disabled
Disabled
Instant-Off
50%
Disabled
Disabled
Disabled
0
HDD Power Down
Soft-Off by PWR-BTTN
CPU THRM-Throttling
Wake-Up by PCI Card
Power On by Ring
Resume by Alarm
Date (of Month) Alarm
Time (hh:mm:ss) Alarm
0 : 0 : 0
** Reload Global Timer Events **
Primary IDE 0
Primary IDE 1
Secondary IDE 0
Secondary IDE 1
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
FDD, COM, LPT Port
PCI PIRQ[A-D] #
Power Supply Type
Use this field to select the power supply type used in the system. The
default setting is ATX.
ACPI Function
Enable this function to support ACPI (Advance Configuration and
Power Interface).
Power Management
This field allows you to select the type of power saving management
modes. There are four selections for Power Management.
Min. Power Saving
Max. Power Saving
User Define
Minimum power management
Maximum power management.
Each of the ranges is from 1 min. to
1hr. Except for HDD Power Down
which ranges from 1 min. to 15 min.
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BIOS SETUP
Video Off Method
This field defines the Video Off features. There are three options.
V/H SYNC + Blank
Default setting, blank the screen and turn
off vertical and horizontal scanning.
Allows BIOS to control the video display.
Writes blanks to the video buffer.
DPMS
Blank Screen
Video Off In Suspend
When enabled, the video is off in suspend mode. The default setting is
Yes.
Suspend Type
The default setting for the Suspend Type field is Stop Grant.
Modem Use IRQ
This field sets the IRQ used by the Modem. By default, the setting is 3.
Suspend Mode
When enabled, and after the set time of system inactivity, all devices
except the CPU will be shut off.
HDD Power Down
When enabled, and after the set time of system inactivity, the hard disk
drive will be powered down while all other devices remain active.
Soft-Off by PWRBTN
This field defines the power-off mode when using an ATX power
supply. The Instant Off mode allows powering off immediately upon
pressing the power button. In the Delay 4 Sec mode, the system powers
off when the power button is pressed for more than four seconds or
enters the suspend mode when pressed for less than 4 seconds.
CPU THRM-Throttling
When the system enters Doze mode, the CPU clock runs only part of the
time. You may select the percent of time that the clock runs.
Wake up by PCI Card
By default, this field is disabled.
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BIOS SETUP
Power On by Ring
This field enables or disables the power on of the system through the
modem connected to the serial port or LAN.
Resume by Alarm
This field enables or disables the resumption of the system operation.
When enabled, the user is allowed to set the Date and Time.
Reload Global Timer Events
The HDD, FDD, COM, LPT Ports, and PCI PIRQ are I/O events that can
prevent the system from entering a power saving mode or can awaken
the system from such a mode. When an I/O device wants to gain the
attention of the operating system, it signals this by causing an IRQ to
occur. When the operating system is ready to respond to the request, it
interrupts itself and performs the service.
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BIOS SETUP
PNP/PCI Configurations
This option configures the PCI bus system. All PCI bus systems on the
system use INT#, thus all installed PCI cards must be set to this value.
Phoenix - AwardBIOS CMOS Setup Utility
PnP/PCI Configurations
Disabled
ITEM HELP
Menu Level
Reset Configuration Data
Auto (ESCD)
Press Enter
Resources Controlled By
IRQ Resources
Select Yes if you are
using a Plug and Play
capable operating
system Select No if
you need the BIOS to
configure non-boot
devices
Disabled
PCI/VGA Palette Snoop
Reset Configuration Data
This field allows you to determine whether to reset the configuration
data or not. The default value is Disabled.
Resources Controlled by
This PnP BIOS can configure all of the boot and compatible devices
automatically with the use of a use a PnP operating system such as
Windows 95.
PCI/VGA Palette Snoop
Some non-standard VGA display cards may not show colors properly.
This field allows you to set whether or not MPEG ISA/VESA VGA
cards can work with PCI/VGA. When this field is enabled, a PCI/VGA
can work with an MPEG ISA/VESA VGA card. When this field is
disabled, a PCI/VGA cannot work with an MPEG ISA/VESA card.
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BIOS SETUP
PC Health Status
This section shows the parameters in determining the PC Health Status.
These parameters include temperatures, fan speeds and voltages.
Phoenix - AwardBIOS CMOS Setup Utility
PC Health Status
ITEM HELP
CPU Warning Temperature
Shutdown Temperature
System Temp.
CPU Temp
FAN1 Speed
85°C
Menu Level >
Disabled
45°C/113°F
52°C/125°F
5400 RPM
FAN2 Speed
FAN3 Speed
Vcore(V)
VGMCH(V)
+3.3V
5463 RPM
5388 RPM
1.02 V
1.32 V
3.32 V
+5V
4.94 V
+12V
12.03 V
3.21 V
VBAT
5VSB(V)
4.96 V
Smart Fan1 Temp
Smart Fan2 Temp
Disabled
Disabled
CPU Warning Temperature
This field allows the user to set the temperature so that when the
temperature is reached, the system sounds a warning. This function can
help prevent damage to the system that is caused by overheating.
Temperatures/Voltages
These fields are the parameters of the hardware monitoring function
feature of the motherboard. The values are read-only values as
monitored by the system and show the PC health status.
Shutdown Temperature
This field allows the user to set the temperature by which the system
automatically shuts down once the threshold temperature is reached.
This function can help prevent damage to the system that is caused by
overheating.
Smart Fan Temperature
This field enables or disables the smart fan feature. At a certain
temperature, the fan starts turning. Once the temperature drops to a
certain level, it stops turning again.
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BIOS SETUP
Frequency/Voltage Control
This section shows the user how to configure the processor frequency.
Phoenix - AwardBIOS CMOS Setup Utility
Frequency/Voltage Control
Disabled
Disabled
ITEM HELP
Menu Level >
Auto Detect PCI Clk
Spread Spectrum Modulated
Auto Detect PCI Clk
This field enables or disables the auto detection of the PCI clock.
Spread Spectrum Modulated
This field sets the value of the spread spectrum. The default setting is
Disabled. This field is for CE testing use only.
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BIOS SETUP
Load Fail-Safe Defaults
This option allows you to load the troubleshooting default values
permanently stored in the BIOS ROM. These default settings are
non-optimal and disable all high-performance features.
Load Optimized Defaults
This option allows you to load the default values to your system
configuration. These default settings are optimal and enable all high
performance features.
Set Supervisor Password
These two options set the system password. Supervisor Password sets a
password that will be used to protect the system and Setup utility. User
Password sets a password that will be used exclusively on the system. To
specify a password, highlight the type you want and press <Enter>. The
Enter Password: message prompts on the screen. Type the password, up
to eight characters in length, and press <Enter>. The system confirms
your password by asking you to type it again. After setting a password,
the screen automatically returns to the main screen.
To disable a password, just press the <Enter> key when you are
prompted to enter the password. A message will confirm the password to
be disabled. Once the password is disabled, the system will boot and you
can enter Setup freely.
Save & Exit Setup
This option allows you to determine whether or not to accept the
modifications. If you type “Y”, you will quit the setup utility and save all
changes into the CMOS memory. If you type “N”, you will return to
Setup utility.
Exit Without Saving
Select this option to exit the Setup utility without saving the changes you
have made in this session. Typing “Y” will quit the Setup utility without
saving the modifications. Typing “N” will return you to Setup utility.
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BIOS SETUP
This page is intentionally left blank.
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DRIVERS INSTALLATION
Drivers Installation
This section describes the installation procedures for software and
drivers under the Windows 98SE, Windows ME, Windows 2000 and
Windows XP. The software and drivers are included with the
motherboard. If you find the items missing, please contact the vendor
where you made the purchase. The contents of this section include the
following:
IMPORTANT NOTE:
After installing your Windows operating system (Windows
98SE/ME/2000/XP), you must install first the Intel Chipset Software
Installation Utility before proceeding with the drivers installation.
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DRIVER INSTALLATION
Intel Chipset Software Intallation Utility
The Intel Chipset Drivers should be installed first before the software
drivers to enable Plug & Play INF support for Intel chipset components.
Follow the instructions below to complete the installation under
Windows 98SE/ME/2000/XP.
1. Insert the CD that comes with the board. Click Intel Chipsets and then
Intel(R) 855/852GME Chipset Family Drivers.
2. Click Intel(R) Chipset Software Installation Utility.
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DRIVERS INSTALLATION
3. When the Welcome screen appears, click Next to continue.
4. Click Yes to accept the software license agreement and proceed with
the installation process.
5. On Readme Information screen, click Next to continue the
installation.
6. The Setup process is now complete. Click Finish to restart the
computer and for changes to take effect. When the computer has
restarted, the system will be able to find some devices. Restart your
computer when prompted.
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DRIVER INSTALLATION
VGA Drivers Installation
To install the VGA drivers, follow the steps below to proceed with the
installation.
1. Insert the CD that comes with the motherboard. Click Intel Chipsets
and then Intel(R) 855/852GME Chipset Family Drivers.
2. Click Intel(R) 855/852GME Chipset Family Graphics Driver.
3. When the Welcome screen appears, click Next to continue.
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DRIVERS INSTALLATION
4. Click Yes to to agree with the license agreement and continue the
installation.
5. Restart the computer as promted and for changes to take effect.
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DRIVER INSTALLATION
AC97 Codec Audio Driver Installation
Follow the steps below to install the Realtek AC97 Codec Audio
Drivers.
1. Insert the CD that comes with the motherboard. Click Intel Chipsets
and then Intel(R) 855/852GME Chipset Family Drivers.
2. Click Realtek AC'97 Codec Audio Driver.
3. When the Welcome screen appears, click Next to continue.
4. Set up has finished installing Realtek AC’97 Audio on your computer.
Finish to restart the computer and for changes to take effect.
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DRIVERS INSTALLATION
Intel PRO LAN Drivers Installation
Follow the steps below to complete the installation of the Intel PRO
LAN drivers.
1. Insert the CD that comes with the motherboard. Click LAN Card and
then Intel(R) PRO LAN Drivers.
2. Click Install Base Software to continue.
3. When prompted, please to restart the computer for new settings to take
effect.
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DRIVER INSTALLATION
SATA Drivers Installation
To install the SATA drivers, follow the steps below to proceed with the
installation.
1. Insert the Windows operating system, go to the Device Manager.
Click the Mass Storage Controller.
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DRIVERS INSTALLATION
2. In the Properties window, click Update Driver.
3. Once in the Welcome screen of the Hardware Update Wizard, select
“No, not this time” and click Next.
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DRIVER INSTALLATION
4. Select “Install from a list or specific location (Advanced)“ and
click Next.
5. Click Browse to find the location of the drivers. Assuming D: is the
drive where the CD drivers is located, the path would be:
D:\Sata\SATA\SIL3512\Non-RAID. Click Next to continue
6. The installation process is now complete. Click Finish to close the
Hardware Update Wizard.
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APPENDIX
Appendix
A. I/O Port Address Map
Each peripheral device in the system is assigned a set of I/O port
addresses which also becomes the identity of the device. The following
table lists the I/O port addresses used.
Address
Device Description
DMA Controller #1
Interrupt Controller #1
Timer
Keyboard Controller
Real Time Clock, NMI
DMA Page Register
Interrupt Controller #2
DMA Controller #2
Clear Math Coprocessor Busy Signal
Reset Math Coprocessor
IDE Interface
Parallel Port #2(LPT2)
Serial Port #2(COM2)
Graphics adapter Controller
Parallel Port #1(LPT1)
Network Ports
000h - 01Fh
020h - 03Fh
040h - 05Fh
060h - 06Fh
070h - 07Fh
080h - 09Fh
0A0h - 0BFh
0C0h - 0DFh
0F0h
0F1h
1F0h - 1F7h
278 - 27F
2F8h - 2FFh
2B0 - 2DF
378h - 3FFh
360 - 36F
3B0 - 3BF
3C0 - 3CF
3D0 - 3DF
3F0h - 3F7h
3F8h - 3FFh
Monochrome & Printer adapter
EGA adapter
CGA adapter
Floppy Disk Controller
Serial Port #1(COM1)
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APPENDIX
B. Interrupt Request Lines (IRQ)
Peripheral devices use interrupt request lines to notify CPU for the
service required. The following table shows the IRQ used by the devices
on board.
Level
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
Function
System Timer Output
Keyboard
Interrupt Cascade
Serial Port #2
Serial Port #1
Reserved
Floppy Disk Controller
Parallel Port #1
Real Time Clock
Reserved
Reserved
Reserved
PS/2 Mouse
80287
Primary IDE
Secondary IDE
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APPENDIX
C. Watchdog Timer Configuration
The WDT is used to generate a variety of output signals after a user
programmable count. The WDT is suitable for use in the prevention of
system lock-up, such as when software becomes trapped in a deadlock.
Under these sort of circumstances, the timer will count to zero and the
selected outputs will be driven. Under normal circumstance, the user
will restart the WDT at regular intervals before the timer counts to zero.
SAMPLE CODE:
This code and information is provided "as is" without warranty of any
kind, either expressed or implied, including but not limited to the
implied warranties of merchantability and/or fitness for a particular
purpose.
;[]================================================
; Name : Enable_And_Set_Watchdog
; IN
: AL - 1sec ~ 255sec
; OUT : None
;[]================================================
Enable_And_Set_Watchdog Proc
Near
push
ax
;save time interval
call Unlock_Chip
mov cl, 2Bh
call Read_Reg
and al, NOT 10h
call Write_Reg
;set GP24 as WDTO
;switch to LD8
mov cl, 07h
mov al, 08h
call Write_Reg
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APPENDIX
mov cl, 0F5h
call Read_Reg
and al, NOT 08h
call Write_Reg
;set count mode as second
;set watchdog timer
;watchdog enabled
pop ax
mov cl, 0F6h
call Write_Reg
mov al, 01h
mov cl, 30h
call Write_Reg
call Lock_Chip
ret
Enable_And_Set_Watchdog Endp
;[]===============================================
; Name : Disable_Watchdog
; IN
: None
; OUT : None
;[]===============================================
Disable_Watchdog Proc
call Unlock_Chip
Near
mov cl, 07h
mov al, 08h
call Write_Reg
;switch to LD8
xor al, al
mov cl, 0F6h
call Write_Reg
;clear watchdog timer
;watchdog disabled
xor al, al
mov cl, 30h
call Write_Reg
call Lock_Chip
ret
Disable_Watchdog Endp
;[]===============================================
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APPENDIX
; Name : Unlock_Chip
; IN : None
; OUT : None
;[]===============================================
Unlock_Chip Proc Near
Mov dx, 4Eh
mov al, 87h
out dx, al
out dx, al
ret
Unlock_Chip
Endp
;[]================================================
; Name : Lock_Chip
; IN : None
; OUT : None
;[]================================================
Unlock_Chip
Proc
Near
mov dx, 4Eh
mov al, 0AAh
out dx, al
ret
Unlock_Chip
Endp
;[]================================================
; Name : Write_Reg
; IN : CL - register index
;
AL - Value to write
; OUT : None
;[]================================================
Write_Reg Proc
Near
push
mov dx, 4Eh
mov al,cl
out dx,al
pop ax
ax
inc dx
out dx,al
ret
Write_Reg Endp
;[]================================================
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APPENDIX
; Name : Read_Reg
; IN : CL - register index
; OUT : AL - Value to read
;[]=================================================
==
Read_Reg Proc
Mov al, cl
mov dx, 4Eh
out dx, al
Near
inc dx
in al, dx
ret
Read_Reg Endp
;[]================================================
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APPENDIX
D. Digital I/O Sample Code
Filename: W627hf.h
//=====================================================================
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
//=====================================================================
#ifndef __W627HF_H
#define __W627HF_H
//=====================================================================
#define W627_IOBASE 0x4E
//=====================================================================
1
#define
#define
W627HF_INDEX_PORT
W627HF_DATA_PORT
(W627_IOBASE+0)
(W627_IOBASE+1)
//=====================================================================
#define W627HF_REG_LD 0x07
//=====================================================================
#define W627HF_UNLOCK
#define W627HF_LOCK
0x87
0xAA
//=====================================================================
void Set_W627HF_LD( unsigned char);
void Set_W627HF_Reg( unsigned char, unsigned char);
unsigned char Get_W627HF_Reg( unsigned char);
//=====================================================================
#endif
//__W627HF_H
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APPENDIX
Filename: W627hf.cpp
//=====================================================================
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
//=====================================================================
#include "W627HF.H"
#include <dos.h>
//=====================================================================
void Unlock_W627HF (void);
void Lock_W627HF (void);
//=====================================================================
void Unlock_W627HF (void)
{
outportb(W627HF_INDEX_PORT, W627HF_UNLOCK);
outportb(W627HF_INDEX_PORT, W627HF_UNLOCK);
}
//=====================================================================
void Lock_W627HF (void)
{
outportb(W627HF_INDEX_PORT, W627HF_LOCK);
}
//=====================================================================
void Set_W627HF_LD( unsigned char LD)
{
Unlock_W627HF();
outportb(W627HF_INDEX_PORT, W627HF_REG_LD);
outportb(W627HF_DATA_PORT, LD);
Lock_W627HF();
}
//=====================================================================
void Set_W627HF_Reg( unsigned char REG, unsigned char DATA)
{
Unlock_W627HF();
outportb(W627HF_INDEX_PORT, REG);
outportb(W627HF_DATA_PORT, DATA);
Lock_W627HF();
}
//=====================================================================
unsigned char Get_W627HF_Reg( unsigned char REG)
{
unsigned char Result;
Unlock_W627HF();
outportb(W627HF_INDEX_PORT, REG);
Result = inportb(W627HF_DATA_PORT);
Lock_W627HF();
return Result;
}
//=====================================================================
File of the Main.cpp
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APPENDIX
//=====================================================================
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//=====================================================================
#include <dos.h>
#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include "W627HF.H"
//=====================================================================
void ClrKbBuf(void);
int main (int argc, char *argv[]);
//=====================================================================
int main (int argc, char *argv[])
{
unsigned char ucDO = 0;
unsigned char ucDI;
unsigned char ucBuf;
//data for digital output
//data for digital input
Set_W627HF_LD( 0x07);
//switch to logic device 7
//clear
Set_W627HF_Reg(0xF1, 0x00);
ucDI = Get_W627HF_Reg(0xF1) & 0x0F;
ClrKbBuf();
while(1)
{
ucDO++;
Set_W627HF_Reg(0xF1, ((ucDO & 0x0F) << 4));
ucBuf = Get_W627HF_Reg(0xF1) & 0x0F;
if (ucBuf != ucDI)
{
ucDI = ucBuf;
printf("Digital I/O Input Changed. Current Data is 0x%X\n",ucDI);
}
if (kbhit())
{
getch();
break;
}
delay(500);
return 0;
}
}
//=====================================================================
void ClrKbBuf(void)
{
while(kbhit())
{
getch();
}
}
//---------------------------------------------------------------------------
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APPENDIX
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