Embedded Controller AEC-6915 Rev.B
AEC-6915 Rev.B
Fanless Embedded Controller
Intel® CoreTM 2 Duo Processor,
4 PCI slots, 4 COMs, 4 USB,
Audio, VGA, Single LAN
AEC-6915 Rev.B Manual 1st Ed.
February 2010
Embedded Controller AEC-6915 Rev.B
Copyright Notice
This document is copyrighted, 2010. 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.
i
Embedded Controller AEC-6915 Rev.B
Acknowledgments
All other products’ name or trademarks are properties of their
respective owners.
• Award is a trademark of Award Software International, Inc.
™
• CompactFlash
Association.
®
• Intel
, Core™2 Duo are trademarks of Intel® Corporation.
• Microsoft Windows
Corp.
• 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.
is a trademark of the Compact Flash
®
is a registered trademark of Microsoft
ii
Embedded Controller AEC-6915 Rev.B
Packing List
Before you begin operating your PC, please make sure that the
following materials are enclosed:
1 AEC-6915 Rev.B Embedded Controller
1 Phoenix Power Connector
2 Wallmount Brackets
1 Audio Cable
1 Screw Package
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.
iii
Embedded Controller AEC-6915 Rev.B
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 cl oth.
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 cau se fire o r
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 equi pment.
c. The equipment has been exposed to moisture.
iv
Embedded Controller AEC-6915 Rev.B
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 an d damaged.
f. The equipment has obvious signs of breaka ge.
15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT
WHERE THE STORAGE TEMPERATURE IS BELOW -20°C
(-4°F) OR ABOVE 60°C (140°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.
v
Embedded Controller AEC-6915 Rev.B
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
部件名称
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。
铅
(Pb)汞 (Hg)镉 (Cd)
× ○ ○ ○ ○ ○
× ○ ○ ○ ○ ○
× ○ ○ ○ ○ ○
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴二苯醚
(PBDE)
vi
Embedded Controller AEC-6915 Rev.B
Contents
Chapter 1 General Information
1.1 Introduction................................................................ 1-2
1.2 Features.................................................................... 1-4
1.3 Specifications............................................................ 1-5
Chapter 2 Hardware Installation
2.1 Jumper and Connector.............................................. 2-2
2.2 FAN Power Selection (JP1) (For special usage) ......2-3
2.3 PS2 Keyboard/ Mouse Power Selection (JP2) .........2-3
2.4 COM1, COM3, COM4 Pin 9 Selection (JP5, JP3, JP4)
.........................................................................................2-4
2.5 RTC Battery Selection (JP6).....................................2-5
2.6 LVDS Power Selection (JP7) (Optional) ...................2-5
2.7 CF Slot Master/Slave Selection (JP8).......................2-6
2.8 USB1,2 (J2) & USB3,4 (J3) Power Selection ...........2-6
2.9 COM2 RS-232/422/485 Selection............................. 2-8
2.10 COM2 RS-232/422/485 Serial Port Connector....... 2-8
2.11 Hard Disk Drive Installation..................................... 2-9
2.12 PCI Card Installation ...............................................2-12
2.13 Wallmount Kit Installation........................................ 2-15
Chapter 3 Award BIOS Setup
3.1 System Test and Initialization. ..................................3-2
3.2 Award BIOS Setup.................................................... 3-3
vii
Embedded Controller AEC-6915 Rev.B
Chapter 4 Driver Installation
4.1 Installation................................................................. 4-3
Appendix A Programming The Watchdog Timer
A.1 Programming ........................................................A-2
A.2 IT8712 Watchdog Timer Initial Program ..............A-6
Appendix B I/O Information
B.1 I/O Address Map ..................................................B-2
B.2 Memory Address Map ..........................................B-3
B.3 IRQ Mapping Chart ..............................................B-4
B.4 DMA Channel Assignments .................................B-4
viii
Embedded Controller AEC-6915 Rev.B
Chapter
1
General
Information
Chapter 1 General Information 1- 1
Embedded Controller AEC-6915 Rev.B
1.1 Introduction
The AEC-6915 Rev.B BOXER 2 Advanced Embedded Control
system continues the BOXER design concept but focuses on the
fast expanding Machine Automation market. The AEC-6915
Rev.B can provide four PCI slots for expansion. Therefore
AEC-6915 Rev.B’s expandable function, compact size combined
with fanless design and highly efficient heat conduction
mechanism can fulfill any rugged technical application in
industrial automation, factory control, test instrumentation and
safety surveillance.
Outstanding Ov er-spec Design
®
CoreTM 2 Duo processor with 2.0GHz combined with
Intel
fanless design and high performance is widely acceptable and
dependable in this market. USB 2.0, Ethernet and 4 Serial ports
allow communication with diverse devices with a high transfer
rate. Furthermore, the AEC-6915 Rev.B can concurrently support
4 PCI for expansion. These interfaces are fully integrated within
the BOXER series and allow an upgrade to their usefulness. It is
a leading-edge thermal and vibration design (up to 60 degree
operation and 5G RMS vibration) and also an innovation for
Machine Automation in the IPC industry. AEC-6915 Rev.B plays
a role in connecting all subsystems in common applications.
Chapter 1 General Information 1- 2
Embedded Controller AEC-6915 Rev.B
AAEON not only enhances your competitive value but also gives
you an excellent solution for the future.
Strict Quality Control Process
AAEON retains the perfect product design and management
team. Our Quality Control through multiple level experience and
test has earned a good reputation in IPC field. AAEON’s whole
product series are subjected to high-level standards which make
them our best guarantee and assurance to customers. Excellent
product quality will always be AAEON’s best advertisement.
24-hour FAE System
AAEON’s e-RMA and e-FAE 24-hour a day systems for all
customers’ prompt request was formally launched in 2005. No
matter if it is a holiday or weekend; we can handle all kinds of
requests and give you a satisfactory response in 10 days.
AAEON is proud of our quick service and professional teamwork
to provide our customers with continual support.
Great design, great value and great service are hallmarks of the
AAEON BOXER embedded control PCs. There really is no other
choice for your application than AAEON if you want the best
performance and best value!
Chapter 1 General Information 1- 3
Embedded Controller AEC-6915 Rev.B
1.2 Features
• All I/O on the same side (front panel)
®
• Supports Intel
CoreTM 2 Duo Processor up to 2.0GHz
• 4 PCI Slots
• Operating Temperature: -20°C ~ 60°C
• Anti-vibration up to 5grms / Anti-shock up to 50 g
Chapter 1 General Information 1- 4
Embedded Controller AEC-6915 Rev.B
1.3 Specifications
System
• CPU: Intel
• System Memory: DDR II SDRAM SODIMM x 1,
Max. 2GB
• Expansion: PCI slot x 4
• VGA: DB-15 VGA connector
• Keyboard/Mouse: PS/2 Keyboard & Mouse
• Ethernet: 10/100/1000Base-TX RJ-45
Connector x 1
• SSD: CompactFlash
(Internal)
• Device Bay: Internal 2.5” HDD Bay with
®
CoreTM 2 Duo Processor
™
slot x 1
slim DVD-ROM (8X COMBO
suck in type) driver
• Serial Port: RS-232 x 3, RS-232/422/485
x 1 (COM2)
• Audio: Audio x 1 (by an extension
cable)
• USB: USB 2.0 port x 4
• Watchdog Timer: Generates a time-out system
reset, setting via software
• Power Supply: 1. DC Input -- Internal DC-DC
Chapter 1 General Information 1- 5
Embedded Controller AEC-6915 Rev.B
Converter (Default)
Input voltage:
DC 9V/4.38A~ DC 30V/1.52A
2. AC Input -- External Power
Adapter (Optional)
Input voltage: 100V AC ~
240V AC @ 50 ~ 60Hz
Mechanical and Environmental
• Construction: Rugged Aluminum Alloy
chassis
• Color: Mustard
• Mounting: Wallmount
• Dimension: 6.1”(W) x 8.89”(H) x 9.4”(D)
(154.3mm x 225.7mm x
• Net Weight: 14.3 lb (6.5 kg)
• Operating Temperature: 5°F ~ 131°F (-15°C~55°C)
(Pentium M 2.0G, CFD);
• Storage Temperature: -4°F ~ 158°F (-20°C~70°C)
• Storage Humidity: 5~95%@40°C,
non-condensing
• Vibration: 5g rms / 5~500Hz / random
Chapter 1 General Information 1- 6
237.8mm)
-4°F ~ 140°F (-20°C ~ 60°C)
(Pentium M 2.0, HDD)
Embedded Controller AEC-6915 Rev.B
operation (CFD); 3g rms /
5~500Hz / random operation
(Internal HDD active Module)
• Shock: 50g peak acceleration
(11msec. duration)(CFD)
20g peak acceleration (11
msec. duration) (HDD)
• EMC: CE/FCC class A
Chapter 1 General Information 1- 7
Embedded Controller AEC-6915 Rev.B
Front Side
B
O
X
VGA
AUDIO
HDD
RESET
SYS
E
R
COM4POWER
COM3 COM1 COM2
LAN
USB
KB/MS
DC - IN
FG
PCI1PCI2PCI3PCI4
VV+
Chapter 1 General Information 1- 8
Embedded Controller AEC-6915 Rev.B
Rear Side
Chapter 1 General Information 1- 9
Embedded Controller AEC-6915 Rev.B
Chapter
2
Hardware
Installation
Chapter 2 Hardware Installation 2-1
Embedded Controller AEC-6915 Rev.B
2.1 Jumper and Connector
JP6
JP8
JP7
JP5
JP4
JP3
J3
J2
JP2
JP1
FAN
Chapter 2 Hardware Installation 2 - 2
Embedded Controller AEC-6915 Rev.B
2.2 FAN Power Selection (JP1) (For special usage)
JP1 Function
1-2 +12V
2-3 +5V
JP1
1
+12V
1
+5V
1
1
1
1
JP1
2.3 PS2 Keyboard/ Mouse Power Selection (JP2)
JP2 Function
1-2 Normal Æ VCC5
2-3 Standby (Default) Æ 5VDUAL
JP2
VCC5
1
1
5VDUAL
1
(Default)
1
1
1
1
1
JP2
Chapter 2 Hardware Installation
2 - 3
Embedded Controller AEC-6915 Rev.B
2.4 COM1, COM3, COM4, Pin 9 Selection (JP5, JP3, JP4)
JP5 Function
1-2 +12V
3-4 +5V
5-6 RI for COM1 (Default)
JP3 Function 1-2 +12V 3-4 +5V 5-6 RI for COM3 (Default)
JP4 Function 1-2 +12V 3-4 +5V 5-6 RI for COM4 (Default)
1
1
1
JP5
+12V
+5V
COM1
(Default)
1
1
1
JP4
+12V
+5V
COM4
(Default)
Chapter 2 Hardware Installation 2 - 4
1
1
1
JP3
(Default)
+12V
+5V
COM3
1
111
JP5
JP4
JP3
Embedded Controller AEC-6915 Rev.B
2.5 RTC Battery Selection (JP6)
JP6 Function
1-2 Normal (Default)
2-3 Clear CMOS
JP6
JP6
1
Normal
(Default)
1
1
Clear
1
CMOS
1
2.6 LVDS Power Selection (JP7) (Optional)
JP7 Function
1-2 +5V
2-3 +3.3V (Default)
JP7
1
1
+5V
+3.3V
(Default)
1
111
JP7
Chapter 2 Hardware Installation
2 - 5
Embedded Controller AEC-6915 Rev.B
2.7 CF Slot Master/Slave Selection (JP8)
JP8 Function
1-2 Slave
2-3 Master (Default)
1
JP8
1
Slave
JP8
1
2.8 USB1, 2 (J2) & USB3, 4 (J3) Power Selection
J2 Function
1-2 Normal Æ VCC5
2-3 Standby (Default) Æ 5VDUAL
J3 Function 1-2 Normal Æ VCC5 2-3 Standby (Default) Æ 5VDUAL
1
1
Master
(Default)
Chapter 2 Hardware Installation 2 - 6
Embedded Controller AEC-6915 Rev.B
J2,J3
VCC5
1
1
5VDUAL
1
1
(Default)
1
1
1
1
J3
J2
1
Chapter 2 Hardware Installation
2 - 7
Embedded Controller AEC-6915 Rev.B
2.9 COM2 RS-232/422/485 Selection
COM2 RS-232/422/485 selection for AAEON BOXER S series is
set in BIOS setting as following:
Entering BIOS Setting Menu: Choose "Integrated Peripherals
Super IO device
Æ
COM2 select". (Default setting is at "RS-232")
2.10 COM2 RS-232/422/485 Serial Port Connector
Different devices implement the RS-232/422/485 standard in
different ways. If you have problems with a serial device, check
the pin assignments below for the connector.
Pin Signal Pin Signal
1 DCD (422TXD-/485DATA-) 2 RXD (422RXD+)
3 TXD (422TXD+/485DATA+) 4 DTR (422RXD-)
Æ
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N.C.
Chapter 2 Hardware Installation 2 - 8
Embedded Controller AEC-6915 Rev.B
2.11 Hard Disk Drive Installation
For Hard Disk Drive (HDD) installation, you have to disassemble
the bottom lid of AEC-6915 Rev.B and some components and
covers in the AEC-6915 Rev.B and then install the HDD.
Step 1: Unfasten the four screws on the side panel.
Step 2: Unfasten the four screws on the HDD cover.
Chapter 2 Hardware Installation
2 - 9
Embedded Controller AEC-6915 Rev.B
Step 3: Get the HDD module and HDD cover ready. Use the four
screws to fasten the HDD cover and HDD module.
Step 4: Fasten the four screws to lock the HDD
Chapter 2 Hardware Installation 2 - 10
Embedded Controller AEC-6915 Rev.B
Step 5: Connect the HDD cable (for SATA HDD)
SATA Power
W/LOCK
I/O Board Side
HDD DISK
Step 6: Fasten the four screws on the side panel of the AEC-6915 Rev.B
Chapter 2 Hardware Installation
2 - 11
Embedded Controller AEC-6915 Rev.B
2.12 PCI Card Installation
Step 1: Unfasten the four screw on the side panel.
Step 2: Remove the screw with your finger and get the PCI card ready
to install. You should keep the shield and screw for use later.
Chapter 2 Hardware Installation 2 - 12
Embedded Controller AEC-6915 Rev.B
Step 3: Insert the PCI card into the PCI slot and reattach the screw.
Step 4: Unfasten the screws and push the tenon to lock the PCI card in
position.
Chapter 2 Hardware Installation
2 - 13
Embedded Controller AEC-6915 Rev.B
Step 5: Close the side lid of the AEC-6915 Rev.B and fasten four screws
on side lid.
Chapter 2 Hardware Installation 2 - 14
Embedded Controller AEC-6915 Rev.B
2.13 Wallmount kit Installation
Step 1: Get the brackets ready and fasten appropriate two screws on
each bracket. After fastening the two brackets on the rear panel
of AEC-6915 Rev.B, the wallmount kit installation is finished
Chapter 2 Hardware Installation
2 - 15
Embedded Controller AEC-6915 Rev.B
SYSVGA
B
O
X
E
R
COM4POWER
COM3 COM1 COM2
HDD
RESET
AUDIO
LAN
USB
KB/MS
DC - IN
FG
PCI1PCI2PCI3PCI4
VV+
Chapter 2 Hardware Installation 2 - 16
Embedded Controller AEC-6915 Rev.B
Chapter
BIOS Setup
3
Award
Chapter 3 Award BIOS Setup 3-1
Embedded Controller AEC-6915 Rev.B
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-6915 Rev.B 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
Embedded Controller AEC-6915 Rev.B
3.2 Award BIOS Setup
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, t ime, 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.
(Primary slave, secondary slave, 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.)
PnP/PCI Configurations
This entry appears if your system supports PnP/PCI.
Note: If you use the external PCI VGA Card (GC-R9250PCI-D3), the
default setting of the Initial Display First must be selected the “PCI Slot”.
PC Health Status
This menu allows you to set the shutdown temperature for your
system.
Chapter 3 Award BIOS Setup 3-3
Embedded Controller AEC-6915 Rev.B
Frequency/Voltage Control
Use this menu to specify your settings for auto detect DIMM/PCI
clock and spread spectrum.
Load Fail-Safe Defaults
Use this menu to load the BIOS default values for the
minimal/stable performance for your system to operate.
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 Supervisor/User Password
Use this menu to set Supervisor/User Passwords.
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
Embedded Controller AEC-6915 Rev.B
Chapter
4
Installation
Driver
Chapter 4 Driver Installation 4 - 1
Embedded Controller AEC-6915 Rev.B
The AEC-6915 Rev.B 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 Chip Driver
Step 2 – Install VGA Driver
Step 3 – Install LAN Driver
Step 4 – Install Audio Driver
USB 2.0 Drivers are available for download using Windows
Update for both Windows XP and Windows 2000. For
additional information regarding USB 2.0 support in Windows
XP and Windows 2000, please visit
www.microsoft.com/hwdev/usb/.
Please read instructions below for further detailed
installations.
Chapter 4 Driver Installation 4 - 2
Embedded Controller AEC-6915 Rev.B
4.1 Installation
Insert the AEC-6915 Rev.B CD-ROM into the CD-ROM Drive.
The Autorun program will run automatically. You also can choose
the drivers to install from step 1 to step 4 in order as following
instructions.
Step 1 – Install Chipset Driver
1. Click on the Step 1-chip folder and then double click on
the infinst_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 Step 2-vga folder and then double click on
the win2k_xp14311.exe
2. Follow the instructions that the window shows
3. The system will help you install the driver automatically
Step 3 – Install LAN Driver
1. Click on the Step 3-LAN-Intel-82573 and then click on
the PRO2KXP.exe
2. Follow the instructions that the window shows
3. The system will help you install the driver automatically
Step 4 – Install Audio Driver
1. Click on the Step 4-Audio folder and then click on the
WDM_A386.exe
2. Follow the instructions that the window shows
Chapter 4 Drivers Installat ion 4 - 3
Embedded Controller AEC-6915 Rev.B
3. The system will help you install the driver automatically
Note:
Under the Window OS environment, if the CRT connector is connected to
display monitor by the data switch device, the user need to set the color
and resolution from Intel Graphic utility (VGA driver) instead of setting from
the control panel in case of the wrong display appearance.
Chapter 4 Driver Installation 4 - 4
Embedded Controller AEC-6915 Rev.B
A
Appendix
Programming the
Watchdog Timer
Appendix A Programming the Watchdog Timer A-1
Embedded Controller AEC-6915 Rev.B
A.1 Programming
AEC-6915 Rev.B utilizes ITE 8712 chipset as its watchdog timer
controller.
Below are the procedures to complete its configuration and the
AAEON intial 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 8712 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
Embedded Controller AEC-6915 Rev.B
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
Embedded Controller AEC-6915 Rev.B
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.
WatchDog Timer Control Register (Index=71h, Default=00h)
Appendix A Programming the Watchdog Timer A-4
Embedded Controller AEC-6915 Rev.B
WatchDog Timer Configuration Register (Index=72h,
Default=00h)
WatchDog Timer Time-out Value Register (Index=73h,
Default=00h)
Appendix A Programming the Watchdog Timer A-5
Embedded Controller AEC-6915 Rev.B
A.2 IT8712 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
call Superio_Set_Reg
Appendix A Programming the Watchdog Timer A-6
Embedded Controller AEC-6915 Rev.B
; 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
CALL Write_Configuration_Data
Appendix A Programming the Watchdog Timer A-7
Embedded Controller AEC-6915 Rev.B
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,12h
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]
OUT DX,AL
Appendix A Programming the Watchdog Timer A-8
Embedded Controller AEC-6915 Rev.B
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
Set_Logic_Device proc near
Appendix A Programming the Watchdog Timer A-9
Embedded Controller AEC-6915 Rev.B
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
Embedded Controller AEC-6915 Rev.B
Appendix
B
I/O Information
Appendix B I/O Information B-1
Embedded Controller AEC-6915 Rev.B
B.1 I/O Address Map
Appendix B I/O Information B-2
Embedded Controller AEC-6915 Rev.B
B.2 Memory Address Map
Appendix B I/O Information B-3
Embedded Controller AEC-6915 Rev.B
B.3 IRQ Mapping Chart
B.4 DMA Channel Assignments
Appendix B I/O Information B-4
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