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Get to know more about the Eee PC 4G (701) Notebook with a detailed look at the software
he information contained in the chapter can be quite useful when you are
troubleshooting the system's hardware. Each item has its individual usage for you to
Understand the software side of the notebook's architecture.
1. General Description
The specification is a guideline for BIOS development on 701 platforms. Anyone who needed
the system BIOS information can check this document for reference.
The general device specification, hardware block diagram, SMBUS, GPIO definition and so on
are subjected to be depicted in this document. Hotkeys implementation and other BIOS features
are also included in the document.
2. CPU, Chipsets & Main Devices
Item Vendor Specification Part's Name Revision
CPU INTEL Dothan single core
North Bridge INTEL 910GML
South Bridge INTEL ICH6M
HD Controller Internal
Audio Codec REALTEK ALC662
Lan Athros L2
Flash memory DDR2
Clock Gen. ICS ICS9LR367
EC ENE KB3310
Wireless Lan Atheros AR5006X
Camera Azure Wave AZWAVE
CardReader PANASONIC ICS9LPR426AGLF-T
modem Askey AFM6010NAM
Table 2-1 Chipsets
Main component block diagram:
3. Device resources
3.1 Subsystem and Sub vendor ID of PCI Devices
Device Bus/Dev/ Function Vendor Device Sub-Vendor Sub-System
Func ID ID ID ID
INTEL 0,0,0 Host Bridge 0x8086 0x2590 0x1043 0x1882
0.2.0 VGA 0x8086 0x2592 0x1043 0x1882
0.31.2 IDE controller 0x8086 0x2653 0x1043 0x8290
Realtek 0.27.0 Audio controller 0x8086 0x2668 0x1043 0x82A1
Athros 3.0.0 LAN 0x1969 0x2048 0x1969 0x2048
3.2 Devices I/O Base
Table3.2 IO Base Address
Devices Base Address
ACPI Power Management 0x800
4. Specified Function Tables
The Specified Functions are controlled via General Purpose Pins of Chipsets, following tables
are the definition of The Functions which controlled via the GPIO pins of South-Bridge
Table 4-1. SB ICH6M GPIO Definition
GPIO# Definition I/O Active Description
7 S_GPI7 Input EC THRO_CPU
8 KBC_SCI# Input Low Level SCI Event
12 S_GPI12 Input Detect LID level
13 EXTSMI# Input Low Level SMI event
19 WLAN_LED# Output High Level Wireless Lan LED
21 CAMERA_EN# Output High Level Camera Enable
23 SPEAKER_EN# Output Low Level Speaker Enable
24 MINICARD_EN Output Low Level Minicard Enable
25 WLAN_ON# Output Low Level Wireless Lan Enable
26 S_GPI26 Input Detect PCB Version
27 CARD_READE Output Low Level Card Read Enable
28 MODEM_EN# Output High Level Modem Enable
29 PCBVER0 Input Detect PCB Version
30 S_GPI30 Input Detect PCB Version
31 PCBVER1 Input Detect PCB Version
5. Setup Menu
701 system BIOS allows users to change some system hardware/function settings during POST
(power on self test) stage, users may hit F2 key to enter SETUP mode in POST, the setup
feature is categorized into 4 menus described as below.
5.1 Main Menu
Main menu describes system overall information with some user changeable setting, it
contains below items.
1. System Firmware: Current version for the system, EC and VGA BIOS.
2. Type: Show the installed CPU Brand String.
3. Count: Show the CPU core number.
4. Installed Size: Total system available memory.
5. System Time: Current time
6. System Date: Current date.
5.2 Advanced Menu
In advanced menu the users may configure IDE configuration, onboard devices and OS to
install type settings may be changed as well. Detailed settings are described below.
1. IDE configuration: See 5.2.1
2. Onboard Devices Configuration: See 5.2.2
3. OS to Install: select OS to Install Linux/WinXP/Normal
5.2.1 IDE Configuration
1. IDE Master: See details.
2. IDE Slave: See details.
5.2.2 Onboard Devices Configuration:
1. USB Ports: USB Ports enabled/disabled
2. Onboard LAN: Onboard LAN enabled/disabled
3. Onboard Audio: Onboard Audio enabled/disabled
4. Onboard Wlan: Onboard wireless LAN enabled/disabled
5. Onboard Camera: Onboard Camera enabled/disabled
6. Onboard Speaker: Onboard Speaker enabled/disabled
7. Onboard Modem: Onboard Modem enabled/disabled
8. Onboard Card Reader: Onboard Card Reader enabled/disabled
5.3 Security Menu
701 BIOS supports three kinds of password for security protection:
1. Supervisor Password: Users may set, change or erase system password, the password data
is saved in non-volatile device (CMOS), system password check is done during POST(Power
On Self Test). The BIOS will prompt a dialog message to ask user for password check when:
The system has password stored, and "Password on boot" setting in BIOS SETUP is enabled.
If password verification fails for 3 times, the system BIOS will halt the machine to inhibit users
User can modify all setup item if user use Supervisor password to enter setup.
2. User Password: If your setting of BIOS have been modified by other, You can setting the
function [Enable], and Key in your password and confirm, Don't modify BIOS setting if no
User is just able to modify some of setup item if user use user password to enter setup
5.4 Boot Menu
In this menu users can decide the boot sequence, as long as the device with highest boot
priority exists, system BIOS will boot from it, device boot priority is adjusted by pressing
"+","-" or space key on the selected (highlighted) item. 3 bootable devices fare listed in this
menu (BIOS default boot sequence).
1. Boot Device Priority: See 5.6.1
2. Boot Settings Configuration: See 5.6.2
3. Onboard LAN Boot ROM: Boot from LAN
5.4.1 Boot Device Priority
In this menu specifies the boot sequence from the available devices. User can change boot
5.4.2 Boot Settings Configuration
1. Quick Boot: [Enabled] decrease time when boot.
2. Quiet Boot: [Disable]: Display normal POST messages.
[Enable]: Displays OEM Logo instead of POST messages.
5.5 Exit Menu
In Exit BIOS setup, users may make final decision if they want to save the change just made
or load BIOS default setting.
1 Exit & Save Changes: Exit system setup after saving the changes.
2 Exit & Discard Changes: Exit system setup without saving any changes.
3 Discard Changes: Discards changes done so far to any of the setup questions.
4 Load setup Defaults: Load Optimal Default values for all the setup questions.
6. Device resources
701 uses ICH6M chipset as its power management core logic, the chipset supports most features
the ACPI 2.0 interface specifies, for ACPI 2.0 compliant OS. The BIOS has below features
(1). System sleep states:
The system supports:
(a). S0 state: The CPU and all devices are working.
(b). S3 state: system is in low power state, with all setting saved into RAM. Most of the
devices are power off
(c). S4 state: The system is powered off, with all settings saved into hard disk.
(d). S5 states. Mechanical off.
6.1 Wake Up Event
PWM mode APM/ Non ACPI ACPI
S1 S1 S3 S4 S5
Wake up Events
Power Button V V V V
PME# (Lan) V V
Any key V
RTC V V
7 Embedded Controller (EC)
7.1 Hot Key
Table 8.1.0 Fn Hot-Key definition
Fn key Description Available
Fn+F1 Suspend switch ACPI+ASUS010
Fn+F2 Wireless lan On/Off ACPI+ ASUS010
Fn+F3 Brightness Down ACPI+ ASUS010
Fn+F4 Brightness Up ACPI+ ASUS010
Fn+F5 Display Devices Switch ACPI+ ASUS010
Fn+F6 Task Manager ACPI+ ASUS010
Fn+F7 Volume On/Off (Mute) ACPI+ ASUS010
Fn+F8 Volume Down ACPI+ ASUS010
Fn+F9 Volume Up ACPI+ ASUS010
Fn+F11 Number lock on/off ACPI+ ASUS010
Fn+F12 Scroll lock on/off ACPI+ ASUS010
9. The applications/actions would be invoked only while ASUS010 driver was installed in
7.2 Battery Interface
Battery Type: ASUS
Battery Command Bus interface: ASUS
8. Thermal Policy
There is only one CPU fan in this project. The controlling method is to plan several step thermal
ranges then every range mapping to different fan speed. The following table is thermal policy table
and Fan Curve.
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