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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
AEC-6611
Compact Embedded Controller
Intel
®
Atom™ N270 1.6GHz Processor
Dual LAN, 2 USB2.0, 4 COM, 1 VGA
AEC-6611 Manual 2nd Ed.
January 2011
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Copyright Notice
This document is copyrighted, 2011. All rights are reserved. The original manufacturer reserves the right to make improvements to the products described in this manual at any time without notice.
No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any means without the prior written permission of the original manufacturer. Information provided in this manual is intended to be accurate and reliable. However, the original manufacturer assumes no responsibility for its use, or for any infringements upon the rights of third parties that may result from its use.
The material in this document is for product information only and is subject to change without notice. While reasonable efforts have been made in the preparation of this document to assure its accuracy, AAEON assumes no liabilities resulting from errors or omissions in this document, or from the use of the information contained herein.
AAEON reserves the right to make changes in the product design without notice to its users.
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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Acknowledgments
All other products’ name or trademarks are properties of their respective owners.
• Award is a trademark of Award Software International, Inc.
• CompactFlash
™
is a trademark of the Compact Flash
Association.
Windows
®
is a registered trademark of Microsoft
Corp.
• Intel
®
, Atom™ are trademarks of Intel Corporation.
• PC/AT, PS/2, and VGA are trademarks of International
Business Machines Corporation.
All other product names or trademarks are properties of their respective owners.
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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Packing List
Before you begin operating your PC, please make sure that the following materials are enclosed: z
1 AEC-6611 Embedded Controller z
2 Wallmount Brackets z
1 Screw Package z
1 CD-ROM for manual (in PDF format) and drivers
If any of these items should be missing or damaged, please contact your distributor or sales representative immediately.
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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Safety & Warranty
1. Read these safety instructions carefully.
2. Keep this user's manual for later reference.
3. Disconnect this equipment from any AC outlet before cleaning. Do not use liquid or spray detergents for cleaning. Use a damp cloth.
4. For pluggable equipment, the power outlet must be installed near the equipment and must be easily accessible.
5. Keep this equipment away from humidity.
6. Put this equipment on a firm surface during installation. Dropping it or letting it fall could cause damage.
7. The openings on the enclosure are for air convection. Protect the equipment from overheating. DO NOT COVER THE OPENINGS.
8. Make sure the voltage of the power source is correct before connecting the equipment to the power outlet.
9. Position the power cord so that people cannot step on it. Do not place anything over the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for a long time, disconnect it from the power source to avoid damage by transient over-voltage.
12. Never pour any liquid into an opening. This could cause fire or electrical shock.
13. Never open the equipment. For safety reasons, only qualified service personnel should open the equipment.
14. If any of the following situations arises, get the equipment checked by service personnel: a. The power cord or plug is damaged. b. Liquid has penetrated into the equipment. c. The equipment has been exposed to moisture.
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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
d. The equipment does not work well, or you cannot get it to work according to the user’s manual. e. The equipment has been dropped and damaged. f. The equipment has obvious signs of breakage.
15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT
WHERE THE STORAGE TEMPERATURE IS BELOW -20°C
(-4°F) OR ABOVE 55°C (131°F). IT MAY DAMAGE THE
EQUIPMENT.
FCC
This device complies with Part 15 FCC Rules.
Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received including interference that may cause undesired operation.
Caution:
There is a danger of explosion if the battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions and your local government’s recycling or disposal directives.
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部件名称
Below Table for China RoHS Requirements
产品中有毒有害物质或元素名称及含量
AAEON Boxer/ Industrial System
有毒有害物质或元素
铅 汞 镉 六价铬 多溴联苯 多溴二苯醚
(Pb) (Hg) (Cd) (Cr(VI)) (PBB) (PBDE)
印刷电路板
及其电子组件
外部信号
连接器及线材
外壳
中央处理器
与内存
硬盘
电源
×
×
×
×
×
×
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
O:表示该有毒有害物质在该部件所有均质材料中的含量均在
SJ/T 11363-2006 标准规定的限量要求以下。
X:表示该有毒有害物质至少在该部件的某一均质材料中的含量超出
SJ/T 11363-2006 标准规定的限量要求。
备注:
一、此产品所标示之环保使用期限,系指在一般正常使用状况下。
二、上述部件物质中央处理器、内存、硬盘、电源为选购品。
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Chapter 1 General Information
A E C - 6 6 1 1
1.1 Introduction................................................................ 1-2
1.2 Features .................................................................... 1-3
1.3 Specifications ............................................................ 1-4
Chapter 2 Hardware Installation
2.1 Dimension and I/O of AEC-6611............................... 2-2
2.2 Location of Connectors and Jumpers of the Main Board
......................................................................................... 2-3
2.3 List of Jumpers .......................................................... 2-5
2.4 List of Connectors ..................................................... 2-6
2.5 Hard Disk Drive Installation....................................... 2-8
2.6 Memory Card Installation .......................................... 2-13
2.7 Wallmount Kit Installation .......................................... 2-16
2.8 DIN Rail Kit Installation ............................................. 2-17
Chapter 3 Award BIOS Setup
3.1 System Test and Initialization. .................................. 3-2
3.2 Award BIOS Setup .................................................... 3-3
Chapter 4 Driver Installation
4.1 Installation ................................................................. 4-3
Appendix A Programming The Watchdog Timer
A.1 Programming ........................................................A-2
A.2 ITE8781 Watchdog Timer Initial Program ............A-6
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Chapter
1
General
Information
Chapter 1 General Information
1- 1
E m b e d d e d C o n t r o l l e r
1.1 Introduction
A E C - 6 6 1 1
The newest Boxer series AEC-6611 has been introduced by
AAEON and it utilizes Intel
®
Atom™ processor. In this era of information explosion, the advertising of consumer products will not be confined to the family television, but will also spread to high-traffic public areas, like department stores, the bus, transportation station, the supermarket etc. The advertising marketing industry will resort to every conceivable means to transmit product information to consumers. System integrators will need a multifunction device to satisfy commercial needs for such public advertising.
The AEC-6611 is designed for indoor environments due to the following reasons; first, the AEC-6611 offers low power consumption system that while operating in ambient temperatures ranging from -20° to 55°C. The MTBF (Mean Time Before Failure) rating states that the AEC-6611 can operate up to 70,000 hours at
40°C ambient temperature, which indicates its careful and long-life design.
The AEC-6611 is a standalone high performance controller designed for long-life operation and with high reliability. It can replace traditional methods and become the mainstream controller for the multimedia entertainment market.
Chapter 1 General Information
1- 2
z z z z z z z z
E m b e d d e d C o n t r o l l e r
1.2 Features
A E C - 6 6 1 1
Intel
®
Atom
TM
N270 1.6 GHz Processor
COM x 4 (Optional COM x 8)
Gigabit Ethernet x 2
DC 12V Power Input
ATX Power Function
SATA Interface Support
Wallmount and DIN Rail Design for Industrial Applications
Windows
®
CE, Windows
®
XP Embedded, Windows
®
7 and
Linux Fedora Support
Chapter 1 General Information
1- 3
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
1.3 Specifications
System
z z z z z z z
CPU
Memory
Intel
®
Atom
TM
N270 1.6GHz Processor
DDR2 400/533 SODIMM x 1, Max.
2GB
VGA
Ethernet
Expansion
Solid Storage
D-sub 15P VGA Connector
10/100/1000Base-TX Ethernet RJ-45 connector x 2
Hard Disk Drive 2.5” SATA HDD x 1
Mini-PCI x 1, Mini Card x 1
Internal Type II CompactFlash
TM slot z z z z
Mechanical and Environmental
z Construction Aluminum Chassis z
Disk
Serial Port x 1
RS-232/422/485 x 1, RS-232 x 3 (x 8
USB optional)
USB 2.0 x 2
Watchdog Timer Generates a time-out system reset
Power Supply DC power input 12V z z
Mounting Wallmount and DIN rail (optional) z Net Weight
(197 mm x 57.2 mm x 110 mm)
4.75 lb (2.16 kg)
Chapter 1 General Information
1- 4
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
z z z z z
Gross Weight
Operating
Temperature
Storage
Temperature
Operating
Humidity
Vibration z z
Shock
EMC
8.36 lb (3.8 kg)
5°F ~ 122°F (-20°C ~ 50°C) (CFD)
5°F ~ 131°F (-20°C ~ 55°C) (HDD)
-4°F ~ 158°F (-20°C ~ 70°C)
5 ~ 90% @ 40°C, non-condensing
5G rms/ 5~500Hz/ random operation –CFD
1G rms/ 5~500Hz/ random operation –HDD
50G peak acceleration (11msec. duration) –CFD
20G peak acceleration (11msec. duration) –HDD
CE/FCC Class A
Chapter 1 General Information
1- 5
A E C - 6 6 1 1 E m b e d d e d C o n t r o l l e r
Chapter
2
Hardware
Installation
Chapter 2 Hardware Installation
2-1
E m b e d d e d C o n t r o l l e r
2.1 Dimension and I/O of AEC-6611
A E C - 6 6 1 1
SYS
HDD
DC IN
12V
USB
LAN1 LAN2
COM2 COM3
COM1
COM4
VGA
COM5
COM6
COM7
COM8
Connectors of AEC-6611
USB
LAN1 LAN2
SYS
HDD
DC IN
12V
COM2 COM3
COM1
COM4
VGA
COM5
COM6
COM7
COM8
CFD
Chapter 2 Hardware Installation
2 - 2
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
2.2 Connectors and Jumpers of The Main Board
Component Side
CN1
CN4
CN3
CN2
JP3 JP2 BA
JP5
CN16
CN18
CN25
CN30
CN28
CN31
CN27
CN20
JP4
CN22
CN23
CN19
CN24
Chapter 2 Hardware Installation
2 - 3
E m b e d d e d C o n t r o l l e r
Solder Side
A E C - 6 6 1 1
DIMM1
Chapter 2 Hardware Installation
2 - 4
CFD1
E m b e d d e d C o n t r o l l e r
2.3 List of Jumpers
A E C - 6 6 1 1
The board has a number of jumpers that allow you to configure your system to suit your application.
The table below shows the function of each of the board's jumpers:
Label Function
JP1 COM2 RI/+5/+12V Selection
JP2
JP3
Clear CMOS Front Panel
AT/ATX Power Mode Selection
JP4
JP5
LVDS Inverter Voltage Selection
LVDS Operating Voltage Selection
Chapter 2 Hardware Installation
2 - 5
E m b e d d e d C o n t r o l l e r
2.4 List of Connectors
A E C - 6 6 1 1
The board has a number of connectors that allow you to configure your system to suit your application. The table below shows the function of each board's connectors:
Label
CN1
CN2
CN3
Function
External +5V Standby Power Input and
PS_ON#
Digital I/O Connector
Parallel Port Connector
CN5 COM Port 2 Connector
CN6 COM Port 3 Connector
CN7 2 nd
LVDS Connector for 18/24-bit LCD
CN8 Onboard BIOS Programming I/F (Optional)
CN9 COM Port 4 Connector
CN11 USB Port 1 Connector
CN12 1 st
LVDS Connector for 18-bit LCD
CN13 USB Port 2 Connector
CN14 USB Port 3 Connector
CN15 USB Port 4 Connector
CN16 2 nd
LVDS Inverter Connector
CN18 1 st
LVDS Inverter Connector
Chapter 2 Hardware Installation
2 - 6
E m b e d d e d C o n t r o l l e r
CN25
CN26
CN27
CN28
CN30
CN31
CN19
CN20
CN21
CN22
CN23
CN24
A E C - 6 6 1 1
Keyboard / Mouse Connector
SATA 1 Connector
+12V Power Input Connector
RJ-45 Ethernet#1 Connector
RJ-45 Ethernet#2 Connector
USB Port 5&6 Connector
+5V Standby Power Output w/ PS_ON# &
SMBus
Audio In/Out/CD-in and MIC Connector
+5V Output Connector for 2.5” SATA Hard Disk
System FAN Connector
CRT Display Connector
COM Port 1 Connector
CFD1 Compact Flash Disk
DDR2 SODIMM Slot DIMM1
Chapter 2 Hardware Installation
2 - 7
E m b e d d e d C o n t r o l l e r
2.5 Hard Disk Drive Installation
A E C - 6 6 1 1
Step 1: Unfasten the screws on the front and rear panel
SYS
HDD
DC IN
12V
USB
LAN1 LAN2
COM2 COM3
COM1
COM4
VGA
COM5
COM6
COM7
COM8
Step 2: Unfasten the four screws on the bottom lid
Chapter 2 Hardware Installation
2 - 8
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Step 3: Fasten the four HDD screws and cover with the four black damper
Black Damper
Black Damper
Chapter 2 Hardware Installation
2 - 9
E m b e d d e d C o n t r o l l e r
Step 4: Assembly the HDD chassis
A E C - 6 6 1 1
Step 5: Assembly the damper bracket
Chapter 2 Hardware Installation
2 - 10
E m b e d d e d C o n t r o l l e r
Step 6: Connect the HDD cable
A E C - 6 6 1 1
Step 7: Fasten the four screws on the bottom lid of AEC-6611
Chapter 2 Hardware Installation
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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Step 8: Fasten the two screws on the front and rear panel
SYS
HDD
DC IN
12V
USB
LAN1 LAN2
COM2 COM3
COM1
COM4
VGA
COM5
COM6
COM7
COM8
Chapter 2 Hardware Installation
2 - 12
E m b e d d e d C o n t r o l l e r
2.6 Memory Card Installation
A E C - 6 6 1 1
Step 1: Unfasten the screws on the front and rear panel
SYS
HDD
DC IN
12V
USB
LAN1 LAN2
COM2 COM3
COM1
COM4
VGA
COM5
COM6
COM7
COM8
Step 2: Unfasten the four screws on the bottom lid
Chapter 2 Hardware Installation
2 - 13
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Step 3: Insert the RAM at 30-degree angle to the memory slot and press
Step 4: Close the bottom case of AEC-6611 and faten the four screws of the bottom lid
Chapter 2 Hardware Installation
2 - 14
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Step 5: Fasten the screws on the front and rear panel
SYS
HDD
DC IN
12V
USB
LAN1 LAN2
COM2 COM3
COM1
COM4
VGA
COM5
COM6
COM7
COM8
Chapter 2 Hardware Installation
2 - 15
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
2.7 Wallmount Kit Installation
Get the brackets ready and fasten appropriate four screws on each bracket.
After fastening the two brackets on the bottom lid of AEC-6611, the wallmount kit installation has been finished.
Chapter 2 Hardware Installation
2 - 16
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
2.8 DIN Rail Kit Installation
Get the DIN Rail kit ready and fasten the three screws to mount the DIN Rail kit to the bottom lid of AEC-6611
Chapter 2 Hardware Installation
2 - 17
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Chapter
3
Award
BIOS Setup
Chapter 3 Award BIOS Setup 3-1
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
3.1 System Test and Initialization
These routines test and initialize board hardware. If the routines encounter an error during the tests, you will either hear a few short beeps or see an error message on the screen. There are two kinds of errors: fatal and non-fatal. The system can usually continue the boot up sequence with non-fatal errors. Non-fatal error messages usually appear on the screen along with the following instructions:
Press <F1> to RESUME
Write down the message and press the F1 key to continue the boot up sequence.
System configuration verification
These routines check the current system configuration against the values stored in the CMOS memory. If they do not match, the program outputs an error message. You will then need to run the
BIOS setup program to set the configuration information in memory.
There are three situations in which you will need to change the
CMOS settings:
1. You are starting your system for the first time
2. You have changed the hardware attached to your system
3. The CMOS memory has lost power and the configuration information has been erased.
The AEC-6611 CMOS memory has an integral lithium battery backup for data retention. However, you will need to replace the complete unit when it finally runs down.
Chapter 3 Award BIOS Setup 3-2
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Awards BIOS ROM has a built-in Setup program that allows users to modify the basic system configuration. This type of information is stored in battery-backed CMOS RAM so that it retains the Setup information when the power is turned off.
Entering Setup
Power on the computer and press <Del> immediately. This will allow you to enter Setup.
Standard CMOS Features
Use this menu for basic system configuration. (Date, time, IDE, etc.)
Advanced BIOS Features
Use this menu to set the advanced features available on your system.
Advanced Chipset Features
Use this menu to change the values in the chipset registers and optimize your system performance.
Integrated Peripherals
Use this menu to specify your settings for integrated peripherals.
(keyboard, mouse etc.)
Power Management Setup
Use this menu to specify your settings for power management.
(HDD power down, power on by ring, KB wake up, etc.)
Chapter 3 Award BIOS Setup 3-3
E m b e d d e d C o n t r o l l e r
PnP/PCI Configurations
A E C - 6 6 1 1
This entry appears if your system supports PnP/PCI.
PC Health Status
Use this menu to set PC Health Status.
Frequency/Voltage Control
Use this menu to specify your settings for auto detect DIMM/PCI clock and spread spectrum.
Load Optimized Defaults
Use this menu to load the BIOS default values that are factory settings for optimal performance system operations. While AWARD has designated the custom BIOS to maximize performance, the factory has the right to change these defaults to meet their needs.
Set Password
Use this menu to set Supervisor Password.
Save and Exit Setup
Save CMOS value changes to CMOS and exit setup.
Exit Without Saving
Abandon all CMOS value changes and exit setup.
You can refer to the "AAEON BIOS Item Description.pdf" file in
the CD for the meaning of each setting in this chapter.
Chapter 3 Award BIOS Setup 3-4
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Chapter
4
Driver
Installation
Chapter 4 Driver Installation
4 - 1
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
The AEC-6611 comes with a CD-ROM that contains all drivers and utilities that meet your needs.
Follow the sequence below to install the drivers:
Step 1 – Install Chipset Driver
Step 2 – Install VGA Driver
Step 3 – Install LAN Driver
Step 4 – Install Mini PCI RS-232 Module Driver
Chapter 4 Driver Installation
4 - 2
E m b e d d e d C o n t r o l l e r
4.1 Installation:
A E C - 6 6 1 1
Insert the AEC-6611 CD-ROM into the CD-ROM Drive. And install the drivers from Step 1 to Step 4 in order.
Step 1 – Install INF Driver
1. Click on the STEP1-CHIPSET folder and double click on the infinst911_autol.exe
2. Follow the instructions that the window shows
3. The system will help you install the driver automatically
Step 2 – Install VGA Driver
1. Click on the STEP2-VGA folder and select the OS folder your system is
2. Double click on the .exe in the OS folder
3. Follow the instructions that the window shows
4. The system will help you install the driver automatically
Step 3 – Install LAN Driver
1. Click on the STEP3-LAN folder and select the OS folder your system is
2. Double click on the PROWin32.exe file in the OS folder
3. Follow the instructions that the window shows
4. The system will help you install the driver automatically
Step 4 – Install Mini PCI RS-232 Module Driver
Installing Mini PCI RS-232 driver in Windows XP and Windows
7
Chapter 4 Driver Installation
4 - 3
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Once the card is installed and the computer is restarted, Windows will detect the board and attempt to load the drivers for it.
1. Windows will detect a “PCI Serial Port”. Select “Install from a list or specific location (Advanced)” as the shown of figure 1 and then click “Next.”
Figure 1
2. Select “Search for the best driver in these locations.”
Next select “Include this location in this search:” and then click “Browse” to open the “ CD-ROM/Driver/
STEP4-MINI PCI RS-232 Module” file as shown in figure 2 . Click “Next.”
Chapter 4 Driver Installation
4 - 4
Figure 2
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
3. Windows has found an updated driver for this device as shown in figure 3 and then click “Next.”
Figure 3
4. The “Completing the Found New Hardware Wizard” dialog. Appears as shown in figure 3, and then click
“Finish.”
5. Repeat the above process for the second, third, fourth, and fifth AAEON PCI Communications Port.
6. Please re-start your Windows.
Finalizing Mini PCI RS-232 module settings
Check your Windows System/Device Manager to confirm the proper installations of Mini PCI RS-232 drivers:
Multifunction adapters
AAEON OX16PCI954 PCI UARTs
AAEON OX16PCI95x PCI bridge
Ports(COM & LPT)
Chapter 4 Driver Installation
4 - 5
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
4-port Mini PCI module will show 4 AAEON PCI
Communications Port and 2-port Mini PCI module will show 2
AAEON PCI Communications Port as the figure 4 shows 4 ports Mini PCI module
Figure 4
Mini-PCI RS-232 module set up in Linux
If the module is a 4-port Mini PCI module, you don’t need to proceed with the set up process, you can use it directly. For 2-port
Mini PCI module, please use the following sequences to set up the module.
cat /proc/tty6/driver/serial command to check your
COM port settings.
As the screen showing, use 16550A to be UART prefix is the system COM ports, and we can see this system with
2 COM ports, leave it as ttyS0, ttyS1.
Chapter 4 Driver Installation
4 - 6
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
2. Make lspci -v command to find OXmPCI952 IRQ and I/O address
As the screen showing, we can find “Serial controller:
Oxford Semiconductor Ltd:” this alphabetic string and then we will see the next line with IRQ number and the next with I/O address
3. Open the file: /etc/rc.local and add two commands
setserial /dev/ttySX1 port IOADDR1 irq Y uart 16950 baud_base 115200 setserial /dev/ttySX2 port IOADDR2 irq Y uart 16950 baud_base 115200
In above command line X1, X2 are the COM port numbers and it must be beyond beforehand. In this case,
X1 is 4, X2 is 5, and Y is IRQ number. Finally, we can set the I/O address individually.
setserial /dev/ttyS4 port 0xe000 irq 9 uart 16950 baud_base 115200 setserial /dev/ttyS5 port 0xe100 irq 9 uart 16950 baud_base 115200
4. Please re-start your computer. display is shown as below. If yes, this setup has been done successfully.
Chapter 4 Driver Installation
4 - 7
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Chapter 4 Driver Installation
4 - 8
A E C - 6 6 1 1 E m b e d d e d C o n t r o l l e r
Appendix
A
Programming the
Watchdog Timer
Appendix A Programming the Watchdog Timer A-1
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
A.1 Programming
AEC-6611 utilizes ITE 8781 chipset as its watchdog timer controller. Below are the procedures to complete its configuration and the AAEON initial watchdog timer program is also attached based on which you can develop customized program to fit your application.
Configuring Sequence Description
After the hardware reset or power-on reset, the ITE 8781 enters the normal mode with all logical devices disabled except
KBC. The initial state (enable bit ) of this logical device (KBC) is determined by the state of pin 121 (DTR1#) at the falling edge of the system reset during power-on reset.
Appendix A Programming the Watchdog Timer A-2
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
There are three steps to complete the configuration setup: (1) Enter the MB PnP Mode; (2) Modify the data of configuration registers; (3)
Exit the MB PnP Mode. Undesired result may occur if the MB PnP
Mode is not exited normally.
(1) Enter the MB PnP Mode
To enter the MB PnP Mode, four special I/O write operations are to be performed during Wait for Key state. To ensure the initial state of the key-check logic, it is necessary to perform four write opera-tions to the Special Address port (2EH). Two different enter keys are provided to select configuration ports (2Eh/2Fh) of the next step.
(2) Modify the Data of the Registers
All configuration registers can be accessed after entering the MB
PnP Mode. Before accessing a selected register, the content of
Index 07h must be changed to the LDN to which the register belongs, except some Global registers.
(3) Exit the MB PnP Mode
Set bit 1 of the configure control register (Index=02h) to 1 to exit the
MB PnP Mode.
Appendix A Programming the Watchdog Timer A-3
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
WatchDog Timer Configuration Registers
Configure Control (Index=02h)
This register is write only. Its values are not sticky; that is to say, a hardware reset will automatically clear the bits, and does not require the software to clear them.
Watch Dog Timer 1, 2, 3 Control Register (Index=71h,81h,91h
Default=00h)
Appendix A Programming the Watchdog Timer A-4
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Watch Dog Timer 1, 2, 3 Configuration Register (Index=72h,
82h, 92h Default=001s0000b)
Watch Dog Timer 1,2,3 Time-Out Value (LSB) Register
(Index=73h,83h,93h, Default=38h)
Watch Dog Timer 1,2,3 Time-Out Value (MSB) Register
(Index=74h,84h,94h Default=00h)
Appendix A Programming the Watchdog Timer A-5
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
A.2 ITE8781 Watchdog Timer Initial Program
.MODEL SMALL
.CODE
Main:
CALL Enter_Configuration_mode
CALL Check_Chip mov cl, 7 call Set_Logic_Device
;time setting mov cl, 10 ; 10 Sec dec al
Watch_Dog_Setting:
;Timer setting mov al, cl mov cl, 73h call Superio_Set_Reg
;Clear by keyboard or mouse interrupt mov al, 0f0h mov cl, 71h call Superio_Set_Reg
;unit is second. mov al, 0C0H mov cl, 72h
Appendix A Programming the Watchdog Timer A-6
E m b e d d e d C o n t r o l l e r
call Superio_Set_Reg
; game port enable mov cl, 9 call Set_Logic_Device
Initial_OK:
CALL Exit_Configuration_mode
MOV AH,4Ch
INT 21h
Enter_Configuration_Mode PROC NEAR
MOV SI,WORD PTR CS:[Offset Cfg_Port]
MOV DX,02Eh
MOV CX,04h
Init_1:
MOV AL,BYTE PTR CS:[SI]
OUT DX,AL
INC SI
LOOP Init_1
RET
Enter_Configuration_Mode ENDP
Exit_Configuration_Mode PROC NEAR
MOV AX,0202h
A E C - 6 6 1 1
Appendix A Programming the Watchdog Timer A-7
E m b e d d e d C o n t r o l l e r
CALL Write_Configuration_Data
RET
Exit_Configuration_Mode ENDP
Check_Chip PROC NEAR
MOV AL,20h
CALL Read_Configuration_Data
CMP AL,87h
JNE Not_Initial
MOV AL,21h
CALL Read_Configuration_Data
CMP AL,81h
JNE Not_Initial
Need_Initial:
STC
RET
Not_Initial:
CLC
RET
Check_Chip ENDP
Read_Configuration_Data PROC NEAR
MOV DX,WORD PTR CS:[Cfg_Port+04h]
Appendix A Programming the Watchdog Timer A-8
A E C - 6 6 1 1
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
OUT DX,AL
MOV DX,WORD PTR CS:[Cfg_Port+06h]
IN AL,DX
RET
Read_Configuration_Data ENDP
Write_Configuration_Data PROC NEAR
MOV DX,WORD PTR CS:[Cfg_Port+04h]
OUT DX,AL
XCHG AL,AH
MOV DX,WORD PTR CS:[Cfg_Port+06h]
OUT DX,AL
RET
Write_Configuration_Data ENDP
Superio_Set_Reg proc near push ax
MOV DX,WORD PTR CS:[Cfg_Port+04h] mov al,cl out dx,al pop ax inc dx out dx,al ret
Superio_Set_Reg endp.Set_Logic_Device proc near
Appendix A Programming the Watchdog Timer A-9
E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1
Set_Logic_Device proc near push ax push cx xchg al,cl mov cl,07h call Superio_Set_Reg pop cx pop ax ret
Set_Logic_Device endp
;Select 02Eh->Index Port, 02Fh->Data Port
Cfg_Port DB 087h,001h,055h,055h
DW 02Eh,02Fh
END Main
Note: Interrupt level mapping
0Fh-Dh: not valid
0Ch: IRQ12
.
.
03h: IRQ3
02h: not valid
01h: IRQ1
00h: no interrupt selected
Appendix A Programming the Watchdog Timer A-10
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