This user manual contains the instructions on setting up and using the
Densitron Kyocera TFT evaluation kit.
The evaluation kit contains:
- 1 x Kyocera TCG057QVGLAC 5.7” TFT panel
o Anti glare treatment
o (320 x R.G.B) x 240 dots
o COG LCD with LED Backlight.
o Dimensions: 144.0 x 104.8 x 13.0 mm
o Effective Viewing Area: 117.2 x 88.4 mm
o Dot Pitch: 0.12 x 0.36 mm
o 3.3V supply
(Please refer to datasheet for full specifications).
- 1 x Driver Card with VGA and DVI inputs
- 24V Power supply
- 33 way FFC Cable
- 24V to 12V DC-DC Converter
- Documentation CD with chipset drivers and flash memory utility.
The documentation CD contains the manual for the parts that make up the kit.
The kit should be unpacked in a static-free environment, with adequate antistatic precautions being observed.
The cables are all keyed and only one cable from the kit will fit each of the
connection steps described below:
1) Connect the display to the driver card, using the 33 way FFC cable. You
will notice that one end is only 32 ways wide; this end plugs into CN400
on the driver card.
2) Connect the OSD board to CN500 on the driver card.
3) Check the jumper settings on the driver card and confirm that
they are correctly set according to the display requirements.
4) Connect the 12V output of the DC-DC converter to connector CN300 of
the driver card.
5) Supply a VGA source via CN2 (Analogue RGB) or CN1 (DVI).
6) The system will power up automatically, however the correct input will
have to be selected from the OSD menu. Refer to the driver card
specifications for the OSD menu functionality.
*2 When brightness decreases to 50% of initial brightness
*3 Life Time is estimated data.
*An input current below 8.0mA may reduce the brightness uniformity of the
LED backlight. This is because the amount of light from each LED chip is
different. Therefore, please evaluate carefully before finalizing the input current.
Award is a registered trademark of Award Software International, Inc.
PS/2 is a trademark of International Business Machines Corporation.
AMD, AMD Geode, and combinations thereof, are trademarks of Advanced Micro Devices, Inc.
Microsoft Windows is a registered trademark of Microsoft Corporation.
All other product names or trademarks are properties of their respective owners.
4.1 Introduction
The IB520 3.5-inch disk size SBC incorporates the AMD Geode LX processor
with speeds of 433MHz (LX700) or 500MHz (LX800). It comes with one DDR
SO-DIMM socket that has a capacity of 1GB system memory. The board
supports one 10/100Mbps Ethernet, using a Realtek RTL8100C controller. A 2D
graphics controller comes integrated on the board that supports CRT and TFT
LCD displays. Useful interface includes four USB 2.0 ports, 2 COM ports, and
one PCI-104 expansion slot. Other expansion options are available with the
Compact Flash socket and PCMCIA connector.
CPU
CPU Internal
Speed
Power
Management
BIOS
Chipset
Memory
Graphic
LVDS
Ethernet
IDE
Audio
USB
PCMCIA
LPC I/O
PCI Arbiter
RTC
Edge
Connectors
Onboard
Headers
Expansion Slot
Digital I/O
Power
Watchdog
Timer
RoHS
Compliant
Board Size
LX700 @433MHz
controller, supports TFT, LVDS LCD & CRT display
- 44-pin header x1
- Compact Flash (type II) connector x1
Out, Line-In & MIC
IrDA, Floppy, COM1, COM2 (RS232) & Hardware monitor
(3 thermal inputs, 4 voltage monitor inputs, VID0-4 & 2
Fan Headers)
(master) from 1 to 3
6-pins Mini-DIN connector x1 for PS/2 KB & Mouse (Y
cable)
USB connector x1 for USB0
DB-15 connector x1 for CRT
RJ-45 connector x1 for LAN
DF13-20 header x1 for LVDS channel
Compact Flash Socket x1 for CF card
10-pin header x1 for COM2 (RS232 only)
4-pin header for USB1
10-pin header x1 for USB2, 3
26-pin header x1 for LPT port
44-pin header x1 for IDE
34-pin header x1 for FDD
12-pin header x1 for Audio
4-pin header x1 for IrDA
10-pin header x1 for Digital I/O
44-pin header x1 for TFT LCD panel
This section provides information on how to use the jumpers and connectors on
the IB520 in order to set up a workable system. The topics covered are:
4.4.1 Installing the Memory
The IB520 board supports one SODIMM DDR memory socket for a maximum
total memory. The memory module capacities supported are 128MB, 256MB,
512MB and 1GB.
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. Insert the module into the socket at a slight angle
(approximately 30 degrees). Note that the socket and module are both keyed,
which means that the module can be installed only in one direction.
2. To seat the memory module into the socket, apply firm and even pressure
to each end of the module until you feel it slip down into the socket.
3. With the module properly seated in the socket, rotate the module
downward. Continue pressing downward until the clips at each end lock into
position.
4. To remove the DDR module, press the clips with both hands.
Jumpers are used on IB520 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 section lists the connectors on IB520 and their respective functions.
The connectors on the IB520 allow you to connect external devices such as
keyboard, floppy disk drives, hard disk drives, printers, etc. The following
section lists the connectors on the IB520 and their respective functions.
Connector Locations on IB520
CN1: Compact Flash Card Socket - Standard compact flash specification.
detect
2 RXD, Receive data
3 TXD, Transmit data
4 DTR, Data terminal
ready
5 Ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
9 RI, Ring indicator
10 No Connect.
CN6 is the D-sub type COM1 serial port connector, while J7 (COM2) is a pin header type COM2
serial port connector.
IDE1: IDE Connector
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 Key
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
Address 1 33 34 No connect
Address 0 35 36 Address 2
The J8, J12 USB pin header connectors support three USB 2.0 ports via optional
USB cables. The IB520 also supports an embedded USB connector, USB1, which
supports another USB 2.0 port.
* The shaded area denotes power or ground signals.
* The KEY pins are to guarantee proper module installation. Pin-A1 will be
removed and the female side plugged for 5.0V I/O signals and Pin-D30 will be
modified in the same manner for 3.3V I/O. It is recommended that both KEY
pins (A1 and D30) be electrically connnected for GND for shielding.
This chapter describes the different settings available in the Award BIOS that comes
with the board.
BIOS Introduction
The Award BIOS (Basic Input/Output System) installed in your computer system’s ROM
supports various 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:
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.
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.
Press <DEL> to Enter Setup
Phoenix - AwardBIOS CMOS Setup Utility
Standard CMOS Features Load Fail-Safe Defaults
Advanced BIOS Features Load Optimized Defaults
Advanced Chipset Features Set Supervisor
Integrated Peripherals Set User Password
Power Management Setup Save & Exit Setup
PnP/PCI Configurations Exit Without Saving
PC Health Status
: If the system cannot boot after making and saving system
Warning:
It is strongly recommended that you avoid
making any changes
to the chipset defaults. These defaults have been carefully chosen
changes with Setup, the Award BIOS supports an override to the
CMOS settings that resets your system to its default.
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.
“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.
Date (mm:dd:yy) Fri, Jun 30, 2006 Item Help
Time (hh:mm:ss) 00 : 00 : 00 Menu Level >
IDE Primary Master None Change the day, month,
IDE Primary Slave None
Drive A 1.44M, 3.5 in.
Drive B None
Video EGA/VGA
Halt On All , But keyboard
Base Memory 640K
Extended Memory 514816K
Total Memory 515584K
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
Month : 1 to 12
Date : 1 to 31
Year : 1999 to 2099
To set the date, highlight the “Date” field and use the PageUp/ PageDown or +/- keys to set the
current time.
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 : Number of cylinders
HEAD : Number of read/write heads
PRECOMP : Write precompensation
LANDING ZONE : Landing zone
SECTOR : Number of sectors
The Access Mode selections are as follows:
CHS (HD < 528MB)
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
5.25
in.
Hour : 00 to 23
LBA (HD > 528MB and supports Logical Block Addressing)
Large (for MS-DOS only)
Auto
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)
CGA 40 Power up in 40 column mode.
CGA 80 Power up in 80 column mode.
MONO For Hercules or MDA adapters.
Halt On
This field determines whether or not the system will halt if an error is detected during power up.
No errors The sys
for any error that may be detected.
All errors Whenever the BIOS detects a non-
you will be prompted.
All, But Keyboard
for a keyboard error; it will stop
all other errors
This section allows you to configure and improve your system and allows you to set up some
system features according to your preference.
Virus Warning Disabled ITEM HELP
CPU Internal Cache Enabled Menu Level >
First Boot Device Floppy
Second Boot Device HDD-0
Third Boot Device CDROM
Boot Other Device Enabled
Swap Floppy Drive Disabled
Boot Up Floppy Seek Enabled
Boot Up NumLock Status On
Gate A20 Option Fast
Typematic Rate Setting Disabled
Typematic Rate (Chars/Sec) 6
Typematic Delay (Msec) 250
Security Option Setup
OS Select For DRAM>64MB Non-OS2
Small Logo (EPA) Show Disabled
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 Internal 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.
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, LAN, 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.
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.
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.
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.
Small Logo (EPA) Show
The EPA logo appears at the right side of the monitor screen when the system is boot up.
Advanced Chipset Features
This Setup menu controls the configuration of the chipset.
CPU Frequency Auto ITEM HELP
Memory Frequency 133 MHz Menu Level >
CAS Latency Auto
Video Memory Size 8M
Output Display Panel & CRT
Flat Panel Configuration Press Enter
Onboard Audio Enabled
Overcurrent Reporting Disabled
Port 4 Assignment Host
Phoenix - AwardBIOS CMOS Setup Utility
Advanced Chipset Features
CPU Frequency
This options for this field are Auto, 433MHz and 500MHz.
Memory Frequency
This default setting for this field is 133MHz.
CAS Latency Time
You can configure CAS latency time in HCLKs as 1.5, 2, 2.5, 3 or 3.5. 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.
Video Memory Size
The default setting for this field is 8M. The options are from 8M to 254M.
Flat Panel Configuration
This options for this field are Flat Panel, CRT and Panel & CRT. For flat panel, configuration
settings include Flat Panel Type, Resolution (320x240 up to 1600x1200), Data Bus Type,
Refresh Rate (60~100Hz), HSYNC Polarity, VSYNC Polarity, SHFCLK Active Period and LP Active
Period.
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.
OnChip IDE Channel 1
Master Drive PIO Mode
Slave Drive PIO Mode
IDE Primary Master UDMA
IDE Primary Slave UDMA
IDE DMA transfer access
IDE HDD Block Mode
Onboard LAN Boot ROM
Onboard FDC Controller
Onboard Serial Port 1
Onboard Serial Port 2
UART Mode Select
Onboard Parallel Port
Parallel Port Mode
OnChip IDE Channel 1
The integrated peripheral controller contains an IDE interface with support for IDE channels.
Select Enabled to activate the channel.
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.
Onboard LAN Boot ROM
This feature allows users to enable or disable the onboard LAN boot
ROM. The default setting is Disabled
Phoenix - AwardBIOS CMOS Setup Utility
Integrated Peripherals
Enabled ITEM HELP
Auto Menu Level >
Auto
Disabled
Disabled
Enabled
Enabled
Disabled
Enabled
3F8/IRQ4
2F8/IRQ3
Normal
387/IRQ7
SPP
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 3F8/IRQ4
Serial Port 2 2F8/IRQ3
Parallel Port 378H/IRQ7
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 Standard Printer Port
EPP Enhanced Parallel Port
ECP Extended Capabilities Port
Power Management Setup
The Power Management Setup allows you to save energy of your system effectively.
Power Management
** PM Timers **
Standby Mode
Suspend Mode
Power-On by Alarm
Time (hh:mm:ss) Alarm
IRQ Wakeup Events
Power Management
The options for the power management setting are Disabled, Legacy and APM.
PM Timers and IRQ Wakeup 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.
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.
PNP OS Installed
Init Display First
Reset Configuration Data
Resources Controlled By
IRQ Resources
Memory Resources
PCI/VGA Palette Snoop
PNP OS Installed
If your OS supports Plug & Play (PnP), select Yes so that it can take over the management of
device resources. If you are using a non-PnP-aware OS or not all of the operating systems you
are using support PnP, select No to let the BIOS handle it instead.
Init Display First
This field refers to the primary video or primary video adapter. The default setting is PCI Slot.
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 OS 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.
Phoenix - AwardBIOS CMOS Setup Utility
PnP/PCI Configurations
No ITEM HELP
PCI Slot Menu Level
Disabled
Auto (ESCD)
Press Enter
Press Enter
Disabled
Default is Disabled.
Select Enabled to
reset Extended
System
Configuration Data
ESCD) when you
exit Setup if you
have installed a new
add-on and the
system
reconfiguration has
caused such a
serious conflict that
the OS cannot boot.
This section shows the parameters in determining the PC Health Status. These parameters
include temperatures, fan speeds and voltages.
Phoenix - AwardBIOS CMOS Setup Utility
CPU Warning Temperature Disabled
Current System Temp. 45°C/113°F
Current CPU Temp 30°C/86°F
Vcore(V) 1.18 V
Vmem 2.57V
Vcc3(V) 3.39V
+5V 5.13 V
+12V 11.12 V
-12V -12.19 V
VBAT 3.21 V
PC Health Status
ITEM HELP
Menu Level >
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.
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/User 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.
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.
4.8 Drivers Installation
This section describes the installation procedures for software and drivers under the
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.
4.8.1 Entertainment Encryption/Decryption Controller Driver
1. In the Windows operating system, go to the Device Manager.
2. As shown below, click the Entertainment Encryption/Decryption Controller under
Other devices.
3. In the following window, click the Driver tab and click OK to continue.
4. In the Hardware Update Wizard, select No, not this time and click Next to continue.
Then select Install from a list of specific location (Advanced). Click Browse to find
the driver’s path in the CD provided - \AMD\AES. Then, click Next to start the drivers
installtion. Then click Finish after the wizard has finished installing the software for
Geode LX AES Crypto Driver.
4. In the Hardware Update Wizard, select No, not this time and click Next to continue.
Then select Install from a list of specific location (Advanced).
5. In the next screen, click Search for the best driver in these locations. Check
Include this location in the search. Click Browse to find the driver’s path in the CD
provided or enter the path directly - \AMD\Vga\. Then, click Next to start the drivers
installtion. Then click Finish after the wizard has finished installing the software for
Advanced Micro Devices Win XP Graphics Driver.
4. In the Hardware Update Wizard, select No, not this time and click Next to continue.
Then select Install from a list of specific location (Advanced).
5. In the next screen, click Search for the best driver in these locations. Check
Include this location in the search. Click Browse to find the driver’s path in the CD
provided or enter the path directly - \AMD\Audio\XPe. Then, click Next to start the
drivers installtion. Then click Finish after the wizard has finished installing the software
for GeodeLX Audio Driver (WDM).
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.
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 Function
IRQ0 System Timer Output
IRQ1 Keyboard
IRQ2 PIC2 (IRQ8-15)
IRQ3 Serial Port #2
IRQ4 Serial Port #1
IRQ5 For PCI
IRQ6 Floppy Disk Controller
IRQ7 Parallel Port #1
IRQ8 Real Time Clock
IRQ9 For PCI
IRQ10 For PCI
IRQ11 For PCI
IRQ12 PS/2 Mouse
IRQ13 Coprocessor
IRQ14 Primary IDE
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
;[]===============================================
; Name : Disable_Watchdog
; IN : None
; OUT : None
;[]===============================================
Disable_Watchdog Proc Near
call Unlock_Chip
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
;[]================================================
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
;[]================================================
5 Technical support
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