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User’s Manua l
Version 1.0, April 2008
Mini-ITX Motherboard 2807950
2807950 User's Manual
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Copyrights
This manual is copyrighted and all rights are reserved. It does not allow any non
authorization in copied, photocopied, translated or reproduced to any electronic or
machine readable form in whole or in part without prior written consent from the
manufacturer.
In general, the manufacturer will not be liable for any direct, indirect, special, incidental
or consequential damages arising from the use of inability to use the product or
documentation, even if advised of the possibility of such damages. The manufacturer
keeps the rights in the subject to change the contents of this manual without prior
notices in order to improve the function design, performance, quality and reliability. The
author assumes no responsibility for any errors or omissions, which may appear in this
manual, nor does it make a commitment to update the information contained herein.
Trademarks
Intel is a registered trademark of Intel Corporation.
Award is a registered trademark of Award Software, Inc.
PS/2 is a trademark of International Business Machines Corporation.
Microsoft Windows is a registered trademark of Microsoft Corporation.
Winbond is a registered trademark of Winbond Electronics Corporation.
All other trademarks, products and or product's name mentioned herein are mentioned
for identification purposes only, and may be trademarks and/or registered trademarks of
their respective companies or owners.
2807950 User's Manual
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Table of Contents
Introduction ....................................................... 1
Product Description ............................................................. 1
Checklist .............................................................................. 2
2807950 Specifications ....................................................... 3
Board Dimensions ............................................................... 4
Installations ....................................................... 5
Installing the CPU ............................................................... 6
Installing the Memory ......................................................... 7
Setting the Jumpers ............................................................. 8
Connectors on 2807950 ...................................................... 11
Appendix ........................................................... 27
A. I/O Port Address Map ................................................... 27
B. Interrupt Request Lines (IRQ) ...................................... 28
C. Watchdog Timer Configuration .....................................29
2807950 User's Manual
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IMPORTANT NOTE: When the system boots without the CRT being
connected, there will be no image on screen when you insert the
CRT/VGA cable. To show the image on screen, the hotkey must be
pressed (CTRL-ALT-F1).
THE 2807950 MINI ITX MOTHERBOARD
2807950 User's Manual
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Introduction
Product Description
The 2807950 Mini ITX board incorporates the Mobile Intel® GM965 Express
Chipset for Embedded Computing, consisting of the Intel® GM965 Graphic
Memory Controller Hub (GMCH) and Intel® I/O Controller Hub (ICH8-M), an
optimized integrated graphics solution with a 533MHz and 800MHz front-side
bus. Dimensions of the board are 170mm x 170mm.
The integrated powerful 3D graphics engine, based on Intel® Graphics Media
Accelerator X3100 (Intel® GMA X3100) architecture, operates at core speeds of
up to 400 MHz. It features a low-power design, is validated with the Intel® Core
2 Duo and Intel® Celeron processors on 65nm process. With dual channel
DDR2 667MHz two DIMM socket on board, the board supports up to 4GB of
DDR2 system memory.
Intel® Graphics supports a unique intelligent memory management scheme
called Dynamic Video Memory Technology (DVMT). DVMT handles diverse
applications by providing the maximum (384MB) availability of system
memory for general computer usage, while supplying additional graphics
memory when a 3D-intensive application requests it. The Intel GMA X3100
graphics architecture also takes advantage of the high-performance Intel
processor. Intel GMA X3100 graphics supports Dual Independent Display
technology.
The main features of the board are:
Supports Intel® Core
TM
2 Duo (Merom 800MHz), Intel® Celeron
Supports up to 2.4GHz, 533MHz/800MHz FSB
Two DDR2 SDRAM DIMM, Max. 4GB memory
Onboard 10/100 BaseT and Marvell PCI-Express Gigabit LAN
Intel® GM965 Express VGA for CRT / LVDS
2x SATA, 6x USB 2.0, 2x COM, Watchdog timer, 1394
1x MiniPCI, 1x PCI, 1xPCI-E(x1) slots, optional DVI
Optional daughter cards:
3901080: Chrontel 7308, supports 24 bit single or dual LVDS channel
3901220: Chrontel 7021, supports CRT
3901100: Chrontel 7307C, single DVI (connector on cable)
3901090: Chrontel 7307C, dual DVI (connector on cable)
3901180: Chrontel 7307C, dual DVI (one connector on card and one on cable)
2807950A only
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2807950 User's Manual
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Checklist
Your 2807950 package should include the items listed below.
• The 2807950 Mini-ITX motherboard
• This User’s Manual
• 1 CD containing chipset drivers and flash memory utility
• Cable kit (IDE, Serial port, Serial ATA)
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2807950 User's Manual
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2807950 Specifications
CPU Supported
Intel® Core
TM
2 Duo, Intel Celeron mobile processors
CPU Voltage
0.700V ~ 1.5V (IMVP-6)
System Speed
Up to 2.4GHz or above
CPU FSB
533MHz/800MHz FSB
Cache
1MB/2MB/4MB
Green /APM
APM1.2
CPU Socket
mPGA Socket 478
Chipset
Intel GM965 Chipset
GMCH: GM965 1299-pin Micro-FCBGA
ICH8M: 82801HBM 678-pin mBGA
BIOS
Award BIOS, support ACPI Function
Memory
DDR2 667/533 SDRAM DIMM x2 (w/o ECC function), Max. 4GB
VGA
GMA965 built-in, supports CRT
SDVO (Dual CH)
Through 3901080 card (Chrontel 7308, 24+24 bits single/dual channel
LVDS, Chrontel 7021, CRT)
Through 3901100 card (Chrontel 7307C, DVI single or Dual)
LVDS LCD Panel
GM965 built-in, supports 24+24 bits (Type 1 only), single or dual channel
LVDS
LAN
1. ICH8M 10/100/gigabit MAC + PHY (dual footprint option):
• Intel 82566DC Nineveh 10/100/1000 (2807950A)
•
2. Marvell 88E8053 PCI-e Gigabit LAN controller x1 (
2807950C/D)
USB
ICH8M built-in USB 2.0 host controller, support 6 ports
Serial ATA Ports
ICH8M built-in SATA controller, supports 2 ports
1394
TI TSB43LV22(dual port)
Parallel IDE
ICH8M built-in one channel Ultra DMA 33/66/100,CF Type II
Audio
ICH8M Built-in audio controller + AC97 Codec ALC885 w/ 7.1 channels,
SPDIF-OUT
LPC I/O
W83627EHF: COM1, COM2 (RS232/RS422/RS485), slim FDC 1.44MB,
IrDA x1 & hardware monitor (3 thermal, 4 voltage monitor inputs, 2 fan
headers)
Digital IO
4 in & 4 out
Keyboard/Mouse
Supports PS/2 Keyboard/Mouse Connector
Expansion Slots
PCI slot x1, PIC-E (x1) slot x1 and Mini PCI socket x1
Edge Connector
PS/2 connector x1 for keyboard/mouse
Gbit LAN RJ-45 + dual USB stack connector
10/100 LAN RJ45 + dual USB stack connector
DB9 x1 for COM 1; DB15 x1 for VGA
SPDIF-OUT connector x1; 1394 connector x1
RCA Jack 3x2 for Audio (Front-Out, Line-In, Mic, Center/LFE, Surround &
Surround Back)
Onboard Header/
Connector
40 pins box-header x1 for IDE1; 26 pins header x1 for slim floppy
CF Connector x1 @ solder side
10 pins pin-headerx1 for Digital I/O; 10 pins pin-header x1 for COM2
10 pins pin-header x 1 for USB 5,6; 5 pins pin-header x 1 for IrDA
DF13 connector x2 for LVDS;
10 pins pin-header x1 for audio Line-Out & Mic
4 pins pin-header x1 for CD in; 7 pins pin-header x1 for 1394
SATA connector x2 for SATA ports
Watchdog Timer
Yes (256 segments, 0, 1, 2…255 sec/min)
System Voltage
+5V, +3.3V, +12V, -12V, 5VSB (2A)
Others
Modem Wakeup, LAN Wakeup
Board Size
170mm x 170mm (Mini ITX)
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2807950 User's Manual
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IMPORTANT NOTE: When the system boots without the CRT being
connected, there will be no image on screen when you insert the
CRT/VGA cable. To show the image on screen, the hotkey must be
pressed (CTRL-ALT-F1).
THE 2807950 MINI ITX MOTHERBOARD
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2807950 User's Manual
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Installations
This section provides information on how to use the jumpers and
connectors on the 2807950 in order to set up a workable system. The
topics covered are:
Installing the CPU ........................................................................ 6
Installing the Memory .................................................................. 7
Setting the Jumpers ...................................................................... 8
Connectors on 2807950 ................................................................ 11
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Installing the CPU
The 2807950 board supports a Socket 478MN (MEROM) processor
socket for Intel® Core
TM
2 Duo, Intel® Celeron mobile 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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Installing the Memory
The 2807950 board supports two DDR2 memory socket for a maximum
total memory of 4GB in DDR2 memory type.
Installing and Removing Memory Modules
To install the DDR2 modules, locate the memory slot on the board and
perform the following steps:
1. Hold the DDR2 module so that the key of the DDR2 module aligned
with that on the memory slot.
2. Gently push the DDR2 module in an upright position until the clips of
the slot close to hold the DDR2 module in place when the DDR2
module touches the bottom of the slot.
3. To remove the DDR2 module, press the clips with both hands.
DDR2 Module
Lock Lock
Lock Lock
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Setting the Jumpers
Jumpers are used on 2807950 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 2807950 and their respective functions.
Jumper Locations on 2807950 ....................................................... 9
JP5: LCD Panel Power Selection.................................................. 10
JP9: PCI/PCIE Riser Card Selection ............................................ 10
JBAT1: Clear CMOS Setting ....................................................... 10
JP8: CompactFlash Slave/Master Selection .................................. 10
IMPORTANT NOTE: When the system boots without the CRT being
connected, there will be no image on screen when you insert the
CRT/VGA cable. To show the image on screen, the hotkey must be
pressed.
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2807950 User's Manual
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Jumper Locations on 2807950
Jumpers on 2807950 ............................................................................ Page
JP5: LCD Panel Power Selection ................................................. 10
JP9: PCI/PCIE Riser Card Selection ............................................ 10
JBAT1: Clear CMOS Setting ....................................................... 10
JP8: CompactFlash Slave/Master Selection ................................. 10
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JP5: LCD Panel Power Selection
JP5 LCD Panel Power
3.3V
5V
JP9: PCI/PCIE Riser Card Selection
JP9 Riser Card
IP390 Riser Card
Install
IP151, IP240 Riser Card
Install
JBAT1: Clear CMOS Setting
JBAT1 Setting
Normal
Clear CMOS
JP8: CompactFlash Slave/Master Selection
JP8 CF Setting
Master
Slave
[
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Connectors on 2807950
CN1: PS/2 Keyboard and PS/2 Mouse Connectors ...................... 14
CN2, CN3: COM1 and VGA Connector ...................................... 14
USB_LAN1: 10/100 RJ-45(2807950A), GbE RJ45(2807950C/D)
and USB1/2 Ports ......................................................................... 15
CN4: 1394 Connector ................................................................... 15
J6: SPDIF Out Connector ............................................................. 15
CN5, CN6: GbE RJ-45(2807950C/D) and USB3/4 Ports ........... 15
CN7: Audio Connector ................................................................. 15
FAN1: System Fan Power Connector .......................................... 15
FAN2: CPU Fan Power Connector .............................................. 15
IDE1: IDE Connector ................................................................... 16
FDD1: Floppy Drive Connector ................................................... 16
ATX1: ATX Power Supply Connector ........................................ 17
J1 (F_PANEL): System Function Connector ............................... 17
F_USB1: USB0/USB1 Connector ................................................ 19
JP1, JP2, JP3: RS232/422/485 (COM2) Selection ....................... 19
J2: COM2 Serial Port ................................................................... 20
J3, J4: LVDS Connectors (1st channel, 2nd channel) .................. 20
J5: LCD Backlight Connector ...................................................... 20
J7: Mini PCI Connector ................................................................ 20
CN8, CN9: SATA Connectors ..................................................... 20
J8: Digital I/O ............................................................................... 21
J9: CD-In Pin Header ................................................................... 21
J10: SPI Flash Connector (factory use only) ................................ 21
J11: 1394 Connector ..................................................................... 21
J12: Front Audio Connector ......................................................... 21
J13: PCI-E(x1) Slot ...................................................................... 21
J14: IrDA Connector .................................................................... 22
J15: Compact Flash Connector ..................................................... 22
PCI1: PCI Slot (supports 2 Master) .............................................. 22
CON1: SDVO Port Connector ..................................................... 22
Headers and Connectors on 2807950 Daughter Cards ................. 23
3901080 – JP4 LCD Panel Power Selection .................................................... 23
3901080 – J1 LCD Backlight Setting ............................................................. 23
3901080 – J3 and J2 1st/2
nd
LVDS Channel Connectors .................................... 23
3901220 – J4 VGA Connector ...................................................................... 24
3901100 – J2 DVI Connector ........................................................................ 25
3901090 – J1, J2 1st/2
nd
DVI Connectors ......................................................... 25
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Connector Locations on 2807950
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2807950 Solder Side
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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, CN3: COM1 and VGA Connector
[
Signal Name Pin # Pin # Signal Name
DCD 1 6 DSR
RXD 2 7 RTS
TXD 3 8 CTS
DTR 4 9 RI
GND 5 10 Not Used
[[[[
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
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USB_LAN1: 10/100 RJ-45(2807950A), 10/100/1000 RJ45
(2807950C/D) and USB1/2 Ports
CN4: 1394 Connector
J6: SPDIF Out Connector
CN5, CN6: GbE RJ-45(
2807950C/D) and USB3/4 Ports
CN7: Audio Connector
FAN1: System Fan Power Connector
FAN1 is a 3-pin header for system fans. The fan must be a 12V
(500mA).
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
FAN2: CPU Fan Power Connector
FAN2 is a 3-pin header for the CPU fan. The fan must be a 12V fan.
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
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IDE1: IDE Connector
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
p
in
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
N
o connec
t
Address 1 33 34
N
o connec
t
Address 0 35 36 Address 2
Chip select 0 37 38 Chip select 1
Activit
y
39 40 Ground
FDD1: Floppy Drive Connector
FDD1is a slim 26-pin connector and will support up to 2.88MB FDD.
Signal Name Pin # Pin # Signal Name
VCC 1 2 INDEX
VCC 3 4 DRV_SEL
VCC 5 6 DSK_CH
NC 7 8 NC
NC 9 10 MOTOR
DINST 11 12 DIR
NC 13 14 STEP
GND 15 16 WDATA
GND 17 18 WGATE
GND 19 20 TRACK
NC 21 22 WPROT
GND 23 24 RDATA
GND 25 26 SIDE
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ATX1: ATX Power Supply Connector
11 1
20 10
Signal Name Pin # Pin # Signal Name
3.3V 11 1 3.3V
-12V 12 2 3.3V
Ground 13 3 Ground
PS-ON 14 4 +5V
Ground 15 5 Ground
Ground 16 6 +5V
Ground 17 7 Ground
-5V 18 8 Power good
+5V 19 9 5VSB
+5V 20 10 +12V
J1 (F_PANEL): System Function Connector
J1 provides connectors for system indicators that provi de light indication
of the computer activities and switches to change the computer status. J1
is a 20-pin header that provides interfaces for the following functions.
Hard Disk Drive LED
Reset Switch
Not Defined
ATX Power On Switch
Not Defined
Power LED
Speaker
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
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2807950 User's Manual
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Power LED: Pins 11 - 15
Pin # Signal Name
11 Power LED
12 No connect
13 Ground
14 No connect
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 t o the power swi t ch 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.
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
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F_USB1: USB0/USB1 Connector
Signal Name Pin Pin Signal Name
Vcc 1 2 Vcc
D0- 3 4 D1-
D0+ 5 6 D1+
Ground 7 8 Ground
NC 9 10 Ground
JP1, JP2, JP3: RS232/422/485 (COM2) Selection
COM1 is fixed for RS-232 use only.
COM2 is selectable for RS232, RS-422 and RS-485.
The following table describes the jumper settings for COM2 selection.
COM2
Function
RS-232 RS-422 RS-485
Jumper
Setting
(pin closed)
JP3:
1-2
JP2:
3-5 & 4-6
JP1:
3-5 & 4-6
JP3:
3-4
JP2:
1-3 & 2-4
JP1:
1-3 & 2-4
JP3:
5-6
JP2:
1-3 & 2-4
JP1:
1-3 & 2-4
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin # Signal Name
RS-232 R2-422 RS-485
1 DCD TX- DATA2 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
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J2: COM2 Serial Port
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
J3, J4: LVDS Connectors (1st channel, 2nd channel)
The LVDS connectors on board consist of the first channel (J3) and
second channel (J4) and supports 18-bit or 36-bit.
Signal Name Pin # Pin # Signal Name
TX0- 2 1 TX0+
Ground 4 3 Ground
TX1- 6 5 TX1+
5V/3.3V 8 7 Ground
NA 10 9 NA
TX2- 12 11 TX2+
Ground 14 13 Ground
TXC- 16 15 TXC+
5V/3.3V 18 17 ENABKL
+12V 20 19 +12V
J5: LCD Backlight Connector
Pin # Signal Name
1 +12V
2 Backlight Enable
3 Ground
J7: Mini PCI Connector
CN8, CN9: SATA Connectors
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2807950 User's Manual
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J8: Digital I/O
Signal Name Pin Pin Signal Name
GND 1 2 VCC
OUT3 3 4 OUT1
OUT2 5 6 OUT0
IN3 7 8 IN1
IN2 9 10 IN0
J9: CD-In Pin Header
Pin # Signal Name
1 CD Audio R
2 Ground
3 Ground
4 CD Audio L
J10: SPI Flash Connector (factory use only)
J11: 1394 Connector
Signal Name Pin Pin Signal Name
TPA+ 1 2 TPB+
TPA- 3 4 TPB-
+12V 5 6 NC
GND 7 8 NC
J12: Front Audio Connector
Signal Name Pin # Pin # Signal Name
MIC2_L 1 2 Ground
MIC2_R 3 4 Presence#
Line2_L 5 6 MIC2_ID
Sense 7 8 NC
Line2_R 9 10 Line2_ID
J13: PCI-E(x1) Slot
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J14: IrDA Connector
Pin # Signal Name
1 +5V
2 No connect
3 Ir RX
4 Ground
5 Ir TX
J15: Compact Flash Connector
PCI1: PCI Slot (supports 2 Master)
CON1: SDVO Port Connector
Signal Name Pin # Pin # Signal Name
+12V A1 B1 +12V
+12V A2 B2 +12V
+5V A3 B3 +5V
3.3V A4 B4 3.3V
RESET A5 B5 GND
GND A6 B6 GND
SDVOC CLK+ A7 B7 SDVOC CLKSDVOC Blue+ A8 B8 SDVOC Blue-
GND A9 B9 GND
SDVOC Green+ A10 B10 SDVOC Green-
SDVOC Red+ A11 B11 SDVOC Red-
GND A12 B12 GND
SDVO TVClkIn+ A13 B13 SDVO TVClkIn-
SDVOB Int+ A14 B14 SDVOB Int-
GND A15 B15 GND
SDVO CtrlData A16 B16 SDVO CtrlCl
k
SDVOB Clk+ A17 B17 SDVOB Clk-
GND A18 B18 GND
SDVOB Blue+ A19 B19 SDVOB Blue-
SDVOB Green+ A20 B20 SDVOB Green-
GND A21 B21 GND
SDVOB Red+ A22 B22 SDVOB Red-
SDVO Stall+ A23 B23 SDVO Stall-
GND A24 B24 GND
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2807950 User's Manual
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Headers and Connectors on 2807950 Daughter Cards
3901080 – JP4 LCD Panel Power Selection
JP4 Voltage
3.3V
5V
3901080 – J1 LCD Backlight Setting
Pin # Signal Name
1 +12V
2 Backlight Enable
3 Ground
3901080– J3 and J2, 1
st
/2
nd
LVDS Channel Connectors
Signal Name Pin # Pin # Signal Name
TX0- 2 1 TX0+
Ground 4 3 Ground
TX1- 6 5 TX1+
5V/3.3V 8 7 Ground
TX3- 10 9 TX3+
TX2- 12 11 TX2+
Ground 14 13 Ground
TXC- 16 15 TXC+
5V/3.3V 18 17 ENABKL
+12V 20 19 +12V
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2807950 User's Manual
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3901220 – J4 VGA Connector
[[[[
Signal Name Pin # Pin # Signal Name
+5V 2 1 RED
Ground 4 3 GREEN
N.C. 6 5 BLUE
SDA 8 7 N.C.
HSYNC 10 9 Ground
VSYNC 12 11 Ground
SCL 14 13 Ground
N.C. 16 15 Ground
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3901100 – J2 DVI Connector
Signal Name Pin # Pin # Signal Name
TDC1- 2 1 TDC1+
Ground 4 3 Ground
TLC- 6 5 TLC+
+5V 8 7 Ground
NC 10 9 HPDET
TDC2- 12 11 TDC2+
Ground 14 13 Ground
TDC0- 16 15 TDC0+
NC 18 17 NC
DDC_SC 20 19 DDC_SD
3901090 – J1, J2 1
st
/ 2
nd
DVI Connectors
Signal Name Pin # Pin # Signal Name
TDC1- 2 1 TDC1+
Ground 4 3 Ground
TLC- 6 5 TLC+
+5V 8 7 Ground
NC 10 9 HPDET
TDC2- 12 11 TDC2+
Ground 14 13 Ground
TDC0- 16 15 TDC0+
NC 18 17 NC
DDC_SC 20 19 DDC_SD
Remarks: When using dual DVI, the first DVI video output is through J1. After
setting the drivers in Windows, then the second DVI output (via J2) will
function. 3901090 and 3901100 are different since the latter (3901100) has video
output via J2. The pin assignments of J1 and J2 are the same.
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INSTALLATIONS
This page is intentionally left blank.
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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 follo wing
table lists the I/O port addresses used.
Address Device Description
000h - 01Fh DMA Controller #1
020h - 03Fh Interrupt Controller #1
040h - 05Fh Timer
060h - 06Fh Keyboard Controller
070h - 07Fh Real Time Clock, NMI
080h - 09Fh DMA Page Register
0A0h - 0BFh Interrupt Controller #2
0C0h - 0DFh DMA Controller #2
0F0h Clear Math Coprocessor Busy Signal
0F1h Reset Math Coprocessor
1F0h - 1F7h IDE Interface
278 - 27F Parallel Port #2(LPT2)
2F8h - 2FFh Serial Port #2(COM2)
2B0 - 2DF Graphics adapter Controller
378h - 3FFh Parallel Port #1(LPT1)
360 - 36F Network Ports
3B0 - 3BF Monochrome & Printer adapter
3C0 - 3CF EGA adapter
3D0 - 3DF CGA adapter
3F0h - 3F7h Floppy Disk Controller
3F8h - 3FFh Serial Port #1(COM1)
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B. Interrupt Request Lines (IRQ)
Peripheral devices use interrupt request lines to notify CPU for the
service required. The following tabl e shows the IRQ used by the devices
on board.
Level Function
IRQ0 System Timer Output
IRQ1 Keyboard
IRQ2 Interrupt Cascade
IRQ3 Serial Port #2
IRQ4 Serial Port #1
IRQ5 Reserved
IRQ6 Floppy Disk Controller
IRQ7 Parallel Port #1
IRQ8 Real Time Clock
IRQ9 Reserved
IRQ10 Reserved
IRQ11 Reserved
IRQ12 PS/2 Mouse
IRQ13 80287
IRQ14 Primary IDE
IRQ15 Secondary IDE
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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 sorts 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.
//
//===========================================================================
#include <stdio.h>
#include <stdlib.h>
#include "W627EHF.H"
//===========================================================================
int main (int argc, char *argv[]);
void copyright(void);
void EnableWDT(int);
void DisableWDT(void);
//===========================================================================
int main (int argc, char *argv[])
{
unsigned char bBuf;
unsigned char bTime;
char **endptr;
copyright();
if (argc != 2)
{
printf(" Parameter incorrect!!\n");
return 1;
}
if (Init_W627EHF() == 0)
{
printf(" Winbond 83627HF is not detected, program abort.\n");
return 1;
}
bTime = strtol (argv[1], endptr, 10);
printf("System will reset after %d seconds\n", bTime);
EnableWDT(bTime);
return 0;
}
//===========================================================================
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void copyright(void)
{
printf("\n======== Winbond 83627EHF Watch Timer Tester (AUTO DETECT) ========\n"\
" Usage : W627E_WD reset_time\n"\
" Ex : W627E_WD 3 => reset system after 3 second\n"\
" W627E_WD 0 => disable watch dog timer\n");
}
//===========================================================================
void EnableWDT(int interval)
{
unsigned char bBuf;
bBuf = Get_W627EHF_Reg( 0x2D);
bBuf &= (!0x01);
Set_W627EHF_Reg( 0x2D, bBuf); //Enable WDTO
Set_W627EHF_LD( 0x08); //switch to logic device 8
Set_W627EHF_Reg( 0x30, 0x01); //enable timer
bBuf = Get_W627EHF_Reg( 0xF5);
bBuf &= (!0x08);
Set_W627EHF_Reg( 0xF5, bBuf); //count mode is second
Set_W627EHF_Reg( 0xF6, interval); //set timer
}
//===========================================================================
void DisableWDT(void)
{
Set_W627EHF_LD(0x08); //switch to logic device 8
Set_W627EHF_Reg(0xF6, 0x00); //clear watchdog timer
Set_W627EHF_Reg(0x30, 0x00); //watchdog disabled
}
//===========================================================================
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//===========================================================================
//
// 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 "W627EHF.H"
#include <dos.h>
//===========================================================================
unsigned int W627EHF_BASE;
void Unlock_W627EHF (void);
void Lock_W627EHF (void);
//===========================================================================
unsigned int Init_W627EHF(void)
{
unsigned int result;
unsigned char ucDid;
W627EHF_BASE = 0x2E;
result = W627EHF_BASE;
ucDid = Get_W627EHF_Reg(0x20);
if (ucDid == 0x88)
{ goto Init_Finish; }
W627EHF_BASE = 0x4E;
result = W627EHF_BASE;
ucDid = Get_W627EHF_Reg(0x20);
if (ucDid == 0x88)
{ goto Init_Finish; }
W627EHF_BASE = 0x00;
result = W627EHF_BASE;
Init_Finish:
return (result);
}
//===========================================================================
void Unlock_W627EHF (void)
{
outportb(W627EHF_INDEX_PORT, W627EHF_UNLOCK);
outportb(W627EHF_INDEX_PORT, W627EHF_UNLOCK);
}
//===========================================================================
void Lock_W627EHF (void)
{
outportb(W627EHF_INDEX_PORT, W627EHF_LOCK);
}
//===========================================================================
void Set_W627EHF_LD( unsigned char LD)
{
Unlock_W627EHF();
outportb(W627EHF_INDEX_PORT, W627EHF_REG_LD);
outportb(W627EHF_DATA_PORT, LD);
Lock_W627EHF();
}
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//===========================================================================
void Set_W627EHF_Reg( unsigned char REG, unsigned char DATA)
{
Unlock_W627EHF();
outportb(W627EHF_INDEX_PORT, REG);
outportb(W627EHF_DATA_PORT, DATA);
Lock_W627EHF();
}
//===========================================================================
unsigned char Get_W627EHF_Reg(unsigned char REG)
{
unsigned char Result;
Unlock_W627EHF();
outportb(W627EHF_INDEX_PORT, REG);
Result = inportb(W627EHF_DATA_PORT);
Lock_W627EHF();
return Result;
}
//===========================================================================
//===========================================================================
//
// 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 __W627EHF_H
#define __W627EHF_H 1
//===========================================================================
#define W627EHF_INDEX_PORT (W627EHF_BASE)
#define W627EHF_DATA_PORT (W627EHF_BASE+1)
//===========================================================================
#define W627EHF_REG_LD 0x07
//===========================================================================
#define W627EHF_UNLOCK 0x87
#define W627EHF_LOCK 0xAA
//===========================================================================
unsigned int Init_W627EHF(void);
void Set_W627EHF_LD( unsigned char);
void Set_W627EHF_Reg( unsigned char, unsigned char);
unsigned char Get_W627EHF_Reg( unsigned char);
//===========================================================================
#endif //__W627EHF_H
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Any advice or comments about our products and service, or anything we can
help you with please don’t hesitate to contact with us. We will do our best to support
your products, projects and business.
Address: Global American, Inc.
17 Hampshire Drive
Hudson, NH 03051
Telephone: Toll Free U.S. Only (800) 833-8999
(603) 886-3900
FAX: (603) 886-4545
Website: http://www.globalamericaninc.com
Support: Technical Support at Global American
2807950 User's Manual
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