IBASE MB884
Specifications
System Chipset
Intel 915G
Form Factor
Micro ATX
Ethernet Chipset
Marvell 88E8053
Video Chipset
Intel 915GV
Audio
ICH6 Built-in Audio controller + AC97 Codec ALC658 6
BIOS
Award BIOS, supports ACPI Function
Board Size
244mm x 244mm
Cache
1M Level 2 (CPU integrated)
Chipset
Intel 915GV/915G Chipset
CPU FSB
800MHz
Up to 3.8+ GHz
CPU Socket
Socket 775
CPU Type
Intel Pentium 4
CPU Voltage
0.8375V~1.6V (VRD 10.1)
Edge Connector
PS/2 Keyboard & Mouse, Quad USB stack connector x1
Expansion Slots
PCI x2, PCI Express (x1) x1, PCI Express (x16) x1
Gigabit LAN
Marvell 88E8053 PCI-Express Gigabit LAN controller x2
Green/APM
APM1.2
LPC I/O
Winbond W83627HF: IrDA x1, Parallel x1, COM1 (RS232),
Memory
2x DDR333/400 SDRAM DIMMs (w/o ECC), Max. 2GB (Dual
Other Function
Modem Wakeup & LAN Wakeup
Parallel IDE
ICH6 built-in one channelUltra DMA 33/66/100
Power Connector
ATX 12V (24 pins + 4 pins)
Processor
Intel Pentium 4
RTC
ICH6 built-in w/ on board Lithium Battery
Serial ATA Ports
ICH6 built-in Serial ATA Controller, supports 4 ports
System Voltage
+5V, +3.3V, +12V, -12V, 5VSB (2A)
USB
ICH6 built-in USB Version 2.0,supports 8 ports, implement 6
VGA
915GV built-in, supports CRT
Watchdog Timer
Yes (256 segments, 0, 1, 2…255 sec/min)
Features
- 2x DDR DIMM, Max. 2GB
- 2x PCI, 1x PCI-E(x1), Watchdog timer
- 6x USB 2.0, 2x COM, 4x SATA
- Integrated Intel 915GV VGA, supports CRT
- Marvell 88E8053 PCI-E Gigabit LAN
- Supports Pentium 4 processors, up to 3.8GHz+, 800MHz FSB
Datasheet
Extracted Text
MB884
®
Socket LGA775 Pentium 4
®
Intel 915G Chipset
Industrial Motherboard
USER’S MANUAL
Version 1.0
Acknowledgments
Award is a registered trademark of Award Software International,
Inc.
PS/2 is a trademark of International Business Machines
Corporation.
Intel and Pentium 4 are registered trademarks of Intel
Corporation.
Microsoft Windows is a registered trademark of Microsoft
Corporation.
Winbond is a registered trademark of Winbond Electronics
Corporation.
All other product names or trademarks are properties of their
respective owners.
Table of Contents
Introduction........................................................1
Checklist.............................................................................. 1
Product Description............................................................. 2
MB884 Specifications......................................................... 3
Board Dimensions............................................................... 4
Installations........................................................5
Installing the CPU............................................................... 6
ATX Power Installation ...................................................... 7
Installing the Memory......................................................... 7
Setting the Jumpers ............................................................. 8
Connectors on MB884 ...................................................... 12
Watchdog Timer Configuration........................................ 24
Digital I/O Sample Code................................................... 27
BIOS Setup .......................................................30
Drivers Installation.......................................53
Intel 915G Chipset Software Intallation Utility................ 54
Intel 915G Chipset Graphics Driver ................................. 55
Realtek AC97 Codec Audio Driver Installation ............... 56
Marvell 88E8053 LAN Drivers Installation ..................... 57
Appendix ............................................................59
A. I/O Port Address Map .................................................. 59
B. Interrupt Request Lines (IRQ)...................................... 60
MB884 User’s Manual iii
This page is intentionally left blank.
iv MB884 User’s Manual
INTRODUCTION
Introduction
Checklist
®
Your MB884 Pentium 4 motherboard package should include the items
listed below:
• The MB884 motherboard
• This User’s Manual
• 1 Back I/O shield
• 1 IDE Cable
• 1 Floppy Cable
• 1 SATA Cable
• Optional 3 SATA Cables
• Optional Serial Port Cable
• 1 CD containing the following:
• Chipset Drivers
• Flash Memory Utility
MB884 User’s Manual 1
INSTALLATIONS
Product Description
®
The MB884 LGA 775 Pentium 4 motherboard incorporates the Intel
915G chipset that can utilize a single LGA775 processor of up to
4.0GHz or higher and supports FSB frequency of 533/800Mhz
(133MHz, and 200MHz HCLK respectively).
®
The 915G chipset is designed for use with the Pentium 4 processor with
1M Level 2 (CPU integrated) cache. The integrated MCH component
provides the CPU interface, DDR interface, Hub Interface and PCI
Express graphics interface.
Two DDR memory sockets supports DDR 400/333 SDRAM DIMM
modules of up to 2GB in capacity.
The board is designed with two Marvell 88E8053 PCI Express Gigabit
LAN single controllers. Four Serial ATA connectors offer 1.5
Gigabits/sec data throughput speed - faster than the most advanced
parallel ATA.
Expansion is provided by two PCI, one PCI Express x1 slots and one PCI
Express x16 slots. Other advanced features include six USB 2.0 ports,
IrDA interface, digital I/O, two serial ports, watchdog timer and audio
function. Dimensions of the board are 9.5” by 9.5” (244mm x 244mm) in
a Micro ATX form factor.
2 MB884 User’s Manual
INTRODUCTION
MB884 Specifications
Micro ATX
Form Factor
Intel Pentium 4
CPU Type
0.8375V~1.6V (VRD 10.1)
CPU Voltage
800MHz
CPU FSB
Up to 3.8+ GHz
CPU FSB
APM1.2
Green / APM
Socket 775
CPU Socket
Intel® 915GV/915G Chipset
Chipset
GMCH: 915GV/915G 1210-ball FCBGA
ICH6: 82801FB 609-ball mBGA; FWH
Award BIOS, supports ACPI Function
BIOS
1M Level 2 (CPU integrated)
Cache
915GV built-in, supports CRT
VGA
Marvell 88E8053 PCI-Express Gigabit LAN controller x2
Gigabit LAN
ICH6 Built-in Audio controller + AC97 Codec ALC658 6 Channels
Audio
(Line-out, Line-in & Mic.)
2x DDR333/400 SDRAM DIMMs (w/o ECC), Max. 2GB (Dual
Memory
Channel)
ICH6 built-in one channel Ultra DMA 33/66/100
Parallel IDE
ICH6 built-in Serial ATA Controller, supports 4 ports
Serial ATA Ports
ICH6 built-in USB Version 2.0, supports 8 ports, implement 6
USB
ports
Winbond W83627HF: IrDA x1, Parallel x1, COM1 (RS232),
LPC I/O
COM2 (RS232/422/485), FDC 2.88MB (3-Mode supported),
Hardware monitor (3 thermal inputs, 4 voltage monitor inputs,
VID0-4 & 3 fan headers)
ICH6 built-in w/ on board Lithium Battery
RTC
- PS/2 Keyboard & Mouse, Quad USB stack connector x1
Edge Connector
for USB1~4, RJ45 connector (w/ Gigabit transformer) x2
for LAN, DB15 x1 for VGA (CRT), DB9 x1 for COM1, DB26
x1 for Printer, Audio Din stack connector x1 for Line-out,
Line-in & Mic
- 5x2 pins box-header x1 for COM2
Onboard Header /
- 4x2 pins pin-header x1 for USB 5~6
Connector
- 20x2 pins (2.5mm pitch) box-header x1 for IDE1
- 17x2 pin box-header x 1 for Floppy
- 5 pins pin-header x1 for IrDA
- 10x2 pins pin-header x1 for other features (PWR LED,
Reset, Lock, HDD LED, SPKR, etc.)
- PCI x2, PCI Express (x1) x1, PCI Express (x16) x1
Expansion Slots
ATX 12V (24 pins + 4 pins)
Power Connector
Yes (256 segments, 0, 1, 2…255 sec/min)
Watchdog Timer
+5V, +3.3V, +12V, -12V, 5VSB (2A)
System Voltage
Modem Wakeup & LAN Wakeup
Other Function
244mm x 244mm
Board Size
MB884 User’s Manual 3
INSTALLATIONS
Board Dimensions
4 MB884 User’s Manual
INSTALLATIONS
Installations
This section provides information on how to use the jumpers and
connectors on the MB884 in order to set up a workable system. The
topics covered are:
Installing the CPU .........................................................................6
ATX Power Installation.................................................................7
Installing the Memory ...................................................................7
Setting the Jumpers........................................................................8
Connectors on MB884.................................................................12
Watchdog Timer Configuration ..................................................24
Digital I/O Sample Code .............................................................27
MB884 User’s Manual 5
INSTALLATIONS
Installing the CPU
The MB884 motherboard supports an LGA 775 processor socket for
Intel® Pentium® 4 processors.
The LGA 775 processor socket comes with a lever to secure the
processor. Refer to the pictures below, from left to right, on how to place
the processor into the CPU socket. Please note that the cover of the
LGA775 socket must always be installed during transport to avoid
damage to the socket.
6 MB884 User’s Manual
INSTALLATIONS
ATX Power Installation
The system power is provided to the motherboard with the ATX1 and
ATX_12V power connectors. ATX1 is a 24-pin power connector and
ATX_12V is a 4-pin 12V power connector.
The 24-pin power connector can to be connected to a standard 20-pin
ATX power connector in a standard ATX power supply (Min. 400watt).
Note: The power supply 5VSB voltage must be at least 2A.
Installing the Memory
The MB884 motherboard supports two DDR memory sockets for a
maximum total memory of 2GB in DDR memory type. It supports
DDR333 when installed with CPUs that have clock speeds of 533MHz.
It supports DDR400 when installed with CPUs that have clock speeds of
800MHz. The board provides dual channel functionality for its DIMM
slots. DIMM1 is for one channel and DIMM2 is for another channel.
Basically, the system memory interface has the following features:
Supports two 64-bit wide DDR data channels
Available bandwidth up to 3.2GB/s (DDR400) for single-channel
mode and 6.4GB/s (DDR400) in dual-channel mode.
Supports 128Mb, 256Mb, 512Mb, 1Gb DDR technologies.
Supports only x8, x16, DDR devices with four banks
Registered DIMMs not supported
Supports opportunistic refresh
Up to 16 simultaneously open pages (four per row, four rows
maximum)
MB884 User’s Manual 7
INSTALLATIONS
Setting the Jumpers
Jumpers are used on MB884 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 MB884 and their respective functions.
Jumper Locations on MB884 .......................................................... 9
JP1: COM2 RS232 +5V/+12V Power Setting .............................. 10
JP2: COM1 RS232 +5V/+12V Power Setting .............................. 10
JP3: RS232/422/485 (COM2) Selection ....................................... 10
JP5: Clear CMOS Contents........................................................... 11
8 MB884 User’s Manual
INSTALLATIONS
Jumper Locations on MB884
Jumper Locations on MB884............................................................Page
JP1: COM2 RS232 +5V/+12V Power Setting......................................10
JP2: COM1 RS232 +5V/+12V Power Setting......................................10
JP3: RS232/422/485 (COM2) Selection ...............................................10
JP5: Clear CMOS Contents...................................................................11
MB884 User’s Manual 9
INSTALLATIONS
JP1: COM2 RS232 +5V/+12V Power Setting
JP1 Setting Function
Pin 1-2
+12V
Short/Closed
Pin 3-4
Normal
Short/Closed
Pin 5-6
+5V
Short/Closed
JP2: COM1 RS232 +5V/+12V Power Setting
JP2 Setting Function
Pin 1-2
+12V
Short/Closed
Pin 3-4
Normal
Short/Closed
Pin 5-6
+5V
Short/Closed
JP3: RS232/422/485 (COM2) Selection
COM1 is fixed for RS-232 use only.
JP3, COM2 is selectable for RS232, RS-422 and RS-485.
The following table describes the jumper settings for COM2 selection.
COM2
RS-232 RS-422 RS-485
Function
Short: Short: Short:
1-2 3-4 5-6
Jumper 9-11 7-9 7-9
Setting 10-12 8-10 8-10
(pin closed) 15-17 13-15 13-15
16-18 14-16 14-16
10 MB884 User’s Manual
INSTALLATIONS
JP5: Clear CMOS Contents
Use JP5, a 3-pin header, to clear the CMOS contents. Note that the
ATX-power connector should be disconnected from the motherboard
before clearing CMOS.
JP5 Setting Function
Pin 1-2
Normal
Short/Closed
Pin 2-3
Clear CMOS
Short/Closed
MB884 User’s Manual 11
INSTALLATIONS
[
Connectors on MB884
The connectors on MB884 allows you to connect external devices such
as keyboard, floppy disk drives, hard disk drives, printers, etc. The
following table lists the connectors on MB884 and their respective
functions.
Connector Locations on MB884 ................................................... 13
ATX1: ATX Power Supply Connector ......................................... 14
ATX_12V: ATX 12V Power Connector....................................... 14
DIMM1: Channel A DDR Socket................................................. 14
DIMM2: Channel B DDR Socket ................................................. 14
PCIE_2: PCI Express (x1) Slot ..................................................... 14
PCI1, PCI2: PCI Slots ................................................................... 14
PCIE_1: PCI Express (x16) Slot ................................................... 14
CN1: PS/2 Keyboard and PS/2 Mouse Connectors....................... 15
CN2: 4-port USB Connector ......................................................... 15
CN3, JP2: COM1/COM2 Serial Ports........................................... 15
CN4: Parallel Port Connector........................................................ 16
CN5: VGA CRT Connector .......................................................... 17
CN6: DUAL LAN RJ45 Connectors............................................. 17
CN7: Audio Connector.................................................................. 17
CN8, CN9, CN10, CN11: SATA Connectors............................... 17
J1: Digital I/O Connector (4 in, 4 out) .......................................... 18
J3: IrDA Connector ....................................................................... 18
J4: USB Connector........................................................................ 18
J5: CD-In Audio Connector .......................................................... 18
J10: Wake On LAN Connector ..................................................... 19
J13: System Function Connector................................................... 19
CPU_FAN1: CPU Fan Power Connector .................................... 21
CPU_FAN2: CPU Fan Power Connector ..................................... 21
FAN1, FAN2: System & Chassis Fan Power Connectors ............ 21
FDD1: Floppy Drive Connector.................................................... 22
IDE1: Primary IDE Connectors .................................................... 22
LED1: LED for CPU Over-Voltage Protection ............................ 23
LED3: Power On LED .................................................................. 23
LED5: Power Off LED.................................................................. 23
12 MB884 User’s Manual
INSTALLATIONS
Connectors on MB884 .......................................................................................................................................Page
ATX1: ATX Power Supply Connector..................................................................................................................14
ATX_12V: ATX 12V Power Connector ...............................................................................................................14
DIMM1: Channel A DDR Socket..........................................................................................................................14
DIMM2: Channel B DDR Socket..........................................................................................................................14
PCIE_2: PCI Express (x1) Slot..............................................................................................................................14
PCI1, PCI2: PCI Slots............................................................................................................................................14
PCIE_1: PCI Express (x16) Slot............................................................................................................................14
CN1: PS/2 Keyboard and PS/2 Mouse Connectors ...............................................................................................15
CN2: 4-port USB Connector..................................................................................................................................15
CN3, JP2: COM1/COM2 Serial Ports ...................................................................................................................15
CN4: Parallel Port Connector ................................................................................................................................16
CN5: VGA CRT Connector...................................................................................................................................17
CN6: DUAL LAN RJ45 Connectors .....................................................................................................................17
CN7: Audio Connector ..........................................................................................................................................17
CN8, CN9, CN10, CN11: SATA Connectors........................................................................................................17
J1: Digital I/O Connector (4 in, 4 out)...................................................................................................................18
J3: IrDA Connector................................................................................................................................................18
J4: USB Connector.................................................................................................................................................18
J5: CD-In Audio Connector ...................................................................................................................................18
J10: Wake On LAN Connector..............................................................................................................................19
J13: System Function Connector ...........................................................................................................................19
CPU_FAN1: CPU Fan Power Connector .............................................................................................................21
CPU_FAN2: CPU Fan Power Connector ..............................................................................................................21
FAN1, FAN2: System & Chassis Fan Power Connectors.....................................................................................21
FDD1: Floppy Drive Connector ............................................................................................................................22
IDE1: Primary IDE Connectors .............................................................................................................................22
LED1: LED for CPU Over-Voltage Protection .....................................................................................................23
LED3: Power On LED...........................................................................................................................................23
LED5: Power Off LED ..........................................................................................................................................23
MB884 User’s Manual 13
INSTALLATIONS
ATX1: ATX Power Supply Connector
Signal Name Pin # Pin # Signal Name
3.3V 13 1 3.3V
-12V 14 2 3.3V
Ground 15 3 Ground
PS-ON 16 4 +5V
Ground 17 5 Ground
Ground 18 6 +5V
Ground 19 7 Ground
-5V 20 8 Power good
+5V 21 9 5VSB
+5V 22 10 +12V
+5V 23 11 +12V
Ground 24 12 +3.3V
ATX1 is a 24-pin ATX power supply connector.
ATX_12V: ATX 12V Power Connector
This connector supplies the CPU operation voltage
Pin # Signal Name
1 Ground
2 Ground
3 +12V
4 +12V
DIMM1: Channel A DDR Socket
DIMM1 is the first-channel DDR socket.
DIMM2: Channel B DDR Socket
DIMM2 is the second-channel DDR socket.
PCIE_1: External PCI Express (x16) Graphics Card Slot
PCIE_2: PCI Express (x1) Slot
PCI1, PCI2: PCI Slots
PCIE_1: PCI Express (x16) Slot
14 MB884 User’s Manual
INSTALLATIONS
CN1: PS/2 Keyboard and PS/2 Mouse Connectors
PS/2 Mouse
PS/2 Keyboard
Signal Name Keyboard Mouse Signal Name
Keyboard data 1 1 Mouse data
N.C. 2 2 N.C.
GND 3 3 GND
5V 4 4 5V
Keyboard clock 5 5 Mouse clock
N.C. 6 6 N.C.
CN2: 4-port USB Connector
CN2 is a USB connector consisting of four ports stacked vertically.
Pin Signal Name
1 Ground
2 USB+
3 USB-
CN2
4 Vcc
CN3, JP2: COM1/COM2 Serial Ports
CN3 (COM1) is a DB-9 connector, while JP2 is a COM2 pin-header
connector.
COM1 COM2
Signal Name Pin # Pin # Signal Name
DCD, Data carrier detect 1 6 DSR, Data set ready
RXD, Receive data 2 7 RTS, Request to send
TXD, Transmit data 3 8 CTS, Clear to send
DTR, Data terminal ready 4 9 RI, Ring indicator
GND, ground 5 10 Not Used
MB884 User’s Manual 15
INSTALLATIONS
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin # Signal Name
RS-232 R2-422 RS-485
1 DCD TX- DATA-
2 RX TX+ DATA+
3 TX RX+ NC
4 DTR RX- NC
5 Ground Ground Ground
6 DSR RTS- NC
7 RTS RTS+ NC
8 CTS CTS+ NC
9 RI CTS- NC
10 NC NC NC
CN4: Parallel Port Connector
CN4 is a DB-25 external connector situated on top of the VGA and serial
ports.
CN4 Parallel Port
Signal Name Pin # Pin # Signal Name
Line printer strobe 1 14 AutoFeed
PD0, parallel data 0 2 15 Error
PD1, parallel data 1 3 16 Initialize
PD2, parallel data 2 4 17 Select
PD3, parallel data 3 5 18 Ground
PD4, parallel data 4 6 19 Ground
PD5, parallel data 5 7 20 Ground
PD6, parallel data 6 8 21 Ground
PD7, parallel data 7 9 22 Ground
ACK, acknowledge 10 23 Ground
Busy 11 24 Ground
Paper empty 12 25 Ground
Select 13 N/A N/A
16 MB884 User’s Manual
INSTALLATIONS
CN5: VGA CRT Connector
CN5 is a DB-15 VGA connector located beside the COM1 port. The
following table shows the pin-out assignments of this connector.
Signal Name Pin # Pin # Signal Name
Red 1 2 Green
Blue 3 4 N.C.
GND 5 6 GND
GND 7 8 GND
N.C. 9 10 GND
N.C. 11 12 N.C.
HSYNC 13 14 VSYNC
NC 15
CN6: DUAL LAN RJ45 Connectors
CN6 consists of two RJ-45 connectors that are used in conjunction with
the Marvell 88E8053 PCI Express Gigabit LAN single controllers.
LAN2 LAN1
UP
DOWN
CN7: Audio Connector
CN7 is a 3-jack audio connector beside the
USB/RJ45 combo connector.
CN8, CN9, CN10, CN11: SATA Connectors
The SATA connectors support SATA 150 and use one serial ATA HDD
for each. CN8 is port 2, CN9 is port 4, CN10 is port1 and CN11 is port3
MB884 User’s Manual 17
INSTALLATIONS
J1: Digital I/O Connector (4 in, 4 out)
This 10-pin Digital I/O connector supports TTL levels and is used to
control external devices requiring ON/OFF circuitry.
Signal Name Pin # Pin # Signal Name
Ground 1 2 +5V
Out3 3 4 Out1
Out2 5 6 Out0
IN3 7 8 IN1
IN2 9 10 IN0
J3: IrDA Connector
Pin # Signal Name
1 +5V
2 No connect
3 Ir RX
4 Ground
5 Ir TX
J4: USB Connector
The following table shows the pin outs of the USB pin header.
Signal Name Pin Pin Signal Name
Vcc 1 5 Ground
USB0- 2 6 USB1+
USB0+ 3 7 USB1-
J4
Ground 4 8 Vcc
J5: CD-In Audio Connector
Pin # Signal Name
1 CD Audio R
2 Ground
3 Ground
4 CD Audio L
18 MB884 User’s Manual
INSTALLATIONS
J10: Wake On LAN Connector
J10 is a 3-pin header for the Wake On LAN function on the
motherboard. The following table shows the pin out assignments of this
connector. Wake On LAN will function properly only with an ATX
power supply with 5VSB that has 1A.
Pin # Signal Name
1 +5VSB
2 Ground
3 LAN Wakeup
J13: System Function Connector
J13 provides connectors for system indicators that provide light
indication of the computer activities and switches to change the
computer status.
Speaker: Pins 1 - 4
This connector provides an interface to a speaker for audio
tone generation. An 8-ohm speaker is recommended.
Pin # Signal Name
1 Speaker out
2 No connect
3 Ground
4 +5V
MB884 User’s Manual 19
INSTALLATIONS
Power LED: Pins 11 - 13
The power LED indicates the status of the main power
switch.
Pin # Signal Name
11 Power LED
12 No connect
13 Ground
Keyboard Locked: Pin 14-15
To use keyboard lock, set pin14/15 to short/closed
Pin # Signal Name
14 Keyboard lock
15 Ground
ATX Power ON Switch: Pins 7 and 17
This 2-pin connector is an “ATX Power Supply On/Off
Switch” on the system that connects to the power switch on
the case. When pressed, the power switch will force the
system to power on. When pressed again, it will force the
system to power off.
Reset Switch: Pins 9 and 19
The reset switch allows the user to reset the system without
turning the main power switch off and then on again.
Orientation is not required when making a connection to
this header.
20 MB884 User’s Manual
INSTALLATIONS
Hard Disk Drive LED Connector: Pins 10 and 20
This connector connects to the hard drive activity LED on
control panel. This LED will flash when the HDD is being
accessed.
Pin # Signal Name
10 HDD Active
20 5V
CPU_FAN1: CPU Fan Power Connector
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
4 Control
CPU_FAN2: CPU Fan Power Connector
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
FAN1, FAN2: System & Chassis Fan Power Connectors
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
MB884 User’s Manual 21
INSTALLATIONS
FDD1: Floppy Drive Connector
Signal Name Pin # Pin # Signal Name
Ground 1 2 RM/LC
Ground 3 4 No connect
Ground 5 6 No connect
Ground 7 8 Index
Ground 9 10 Motor enable 0
Ground 11 12 Drive select 1
Ground 13 14 Drive select 0
Ground 15 16 Motor enable 1
Ground 17 18 Direction
Ground 19 20 Step
Ground 21 22 Write data
Ground 23 24 Write gate
Ground 25 26 Track 00
Ground 27 28 Write protect
FDD1
Ground 29 30 Read data
Ground 31 32 Side 1 select
Ground 33 34 Diskette change
IDE1: Primary IDE Connectors
Signal Name Pin # Pin # Signal Name
Reset IDE 1 2 Ground
Host data 7 3 4 Host data 8
Host data 6 5 6 Host data 9
Host data 5 7 8 Host data 10
Host data 4 9 10 Host data 11
Host data 3 11 12 Host data 12
Host data 2 13 14 Host data 13
Host data 1 15 16 Host data 14
Host data 0 17 18 Host data 15
Ground 19 20 Protect pin
DRQ0 21 22 Ground
Host IOW 23 24 Ground
Host IOR 25 26 Ground
IOCHRDY 27 28 Host ALE
DACK0 29 30 Ground
IRQ14 31 32 No connect
IDE1
Address 1 33 34 No connect
Address 0 35 36 Address 2
Chip select 0 37 38 Chip select 1
Activity 39 40 Ground
22 MB884 User’s Manual
INSTALLATIONS
LED1: LED for CPU Over-Voltage Protection
This red LED shall light to indicate that the CPU voltage has surged and
reached the default voltage protection value (2V). In such a case, the
system will shut down automatically.
LED3: Power On LED
This green LED will light constantly when the power is on to indicate
that the 5VSB status has switched to 5V power.
LED5: Power Off LED
This Red LED will light constantly during a power-off status to indicate
5VSB status. At this time, LED3 will not light.
MB884 User’s Manual 23
INSTALLATIONS
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
mov cl, 07h
mov al, 08h
call Write_Reg ;switch to LD8
mov cl, 0F5h
call Read_Reg
and al, NOT 08h
call Write_Reg ;set count mode as second
pop ax
mov cl, 0F6h
call Write_Reg ;set watchdog timer
24 MB884 User’s Manual
INSTALLATIONS
mov al, 01h
mov cl, 30h
call Write_Reg ;watchdog enabled
call Lock_Chip
ret
Enable_And_Set_Watchdog Endp
;[]===============================================
; Name : Disable_Watchdog
; IN : None
; OUT : None
;[]===============================================
Disable_Watchdog Proc Near
call Unlock_Chip
mov cl, 07h
mov al, 08h
call Write_Reg ;switch to LD8
xor al, al
mov cl, 0F6h
call Write_Reg ;clear watchdog timer
xor al, al
mov cl, 30h
call Write_Reg ;watchdog disabled
call Lock_Chip
ret
Disable_Watchdog Endp
;[]===============================================
; 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
MB884 User’s Manual 25
INSTALLATIONS
;[]================================================
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 ax
mov dx, 4Eh
mov al,cl
out dx,al
pop ax
inc dx
out dx,al
ret
Write_Reg Endp
;[]================================================
; Name : Read_Reg
; IN : CL - register index
; OUT : AL - Value to read
;[]===================================================
Read_Reg Proc Near
Mov al, cl
mov dx, 4Eh
out dx, al
inc dx
in al, dx
ret
Read_Reg Endp
;[]================================================
26 MB884 User’s Manual
INSTALLATIONS
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 1
//=====================================================================
#define W627_IOBASE 0x4E
//=====================================================================
#define W627HF_INDEX_PORT (W627_IOBASE+0)
#define W627HF_DATA_PORT (W627_IOBASE+1)
//=====================================================================
#define W627HF_REG_LD 0x07
//=====================================================================
#define W627HF_UNLOCK 0x87
#define W627HF_LOCK 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
MB884 User’s Manual 27
INSTALLATIONS
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 key immediately allows you
to enter the Setup utility. If you are a little bit late pressing the
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 to Enter Setup
In general, you press the arrow keys to highlight items,
Frequently asked questions
How does Industrial Trading differ from its competitors?

Is there a warranty for the MB884?

Which carrier will Industrial Trading use to ship my parts?

Can I buy parts from Industrial Trading if I am outside the USA?

Which payment methods does Industrial Trading accept?

Why buy from GID?

Quality
We are industry veterans who take pride in our work

Protection
Avoid the dangers of risky trading in the gray market

Access
Our network of suppliers is ready and at your disposal

Savings
Maintain legacy systems to prevent costly downtime

Speed
Time is of the essence, and we are respectful of yours
What they say about us
FANTASTIC RESOURCE
One of our top priorities is maintaining our business with precision, and we are constantly looking for affiliates that can help us achieve our goal. With the aid of GID Industrial, our obsolete product management has never been more efficient. They have been a great resource to our company, and have quickly become a go-to supplier on our list!
Bucher Emhart Glass
EXCELLENT SERVICE
With our strict fundamentals and high expectations, we were surprised when we came across GID Industrial and their competitive pricing. When we approached them with our issue, they were incredibly confident in being able to provide us with a seamless solution at the best price for us. GID Industrial quickly understood our needs and provided us with excellent service, as well as fully tested product to ensure what we received would be the right fit for our company.
Fuji
HARD TO FIND A BETTER PROVIDER
Our company provides services to aid in the manufacture of technological products, such as semiconductors and flat panel displays, and often searching for distributors of obsolete product we require can waste time and money. Finding GID Industrial proved to be a great asset to our company, with cost effective solutions and superior knowledge on all of their materials, it’d be hard to find a better provider of obsolete or hard to find products.
Applied Materials
CONSISTENTLY DELIVERS QUALITY SOLUTIONS
Over the years, the equipment used in our company becomes discontinued, but they’re still of great use to us and our customers. Once these products are no longer available through the manufacturer, finding a reliable, quick supplier is a necessity, and luckily for us, GID Industrial has provided the most trustworthy, quality solutions to our obsolete component needs.
Nidec Vamco
TERRIFIC RESOURCE
This company has been a terrific help to us (I work for Trican Well Service) in sourcing the Micron Ram Memory we needed for our Siemens computers. Great service! And great pricing! I know when the product is shipping and when it will arrive, all the way through the ordering process.
Trican Well Service
GO TO SOURCE
When I can't find an obsolete part, I first call GID and they'll come up with my parts every time. Great customer service and follow up as well. Scott emails me from time to time to touch base and see if we're having trouble finding something.....which is often with our 25 yr old equipment.
ConAgra Foods