User's Manual

PICO830
®
Intel AtomTM N2800/N2600
Processor Pico-ITX Board
User’s Manual
Disclaimers
This manual has been carefully checked and believed to contain accurate information.
Axiomtek Co., Ltd. assumes no responsibility for any infringements of patents or any third
party’s rights, and any liability arising from such use.
Axiomtek does not warrant or assume any legal liability or responsibility for the accuracy,
completeness or usefulness of any information in this document. Axiomtek does not make any
commitment to update the information in this manual.
Axiomtek reserves the right to change or revise this document and/or product at any time
without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of Axiomtek Co., Ltd.
CAUTION
If you replace wrong batteries, it causes the danger of explosion. It is recommended by the
manufacturer that you follow the manufacturer’s instructions to only replace the same or
equivalent type of battery, and dispose of used ones.
Copyright 2013 Axiomtek Co., Ltd.
All Rights Reserved
January 2013, Version A2
Printed in Taiwan
ii
ESD Precautions
Computer boards have integrated circuits sensitive to static electricity. To prevent chipsets
from electrostatic discharge damage, please take care of the following jobs with precautions:

Do not remove boards or integrated circuits from their anti-static packaging until you are
ready to install them.

Before holding the board or integrated circuit, touch an unpainted portion of the system
unit chassis for a few seconds. It discharges static electricity from your body.

Wear a wrist-grounding strap, available from most electronic component stores, when
handling boards and components.
Trademarks Acknowledgments
Axiomtek is a trademark of Axiomtek Co., Ltd.
®
Windows is a trademark of Microsoft Corporation.
AMI is trademark of American Megatrend Inc.
IBM, PC/AT, PS/2, VGA are trademarks of International Business Machines Corporation.
®
®
Intel and Pentium are trademarks of Intel Corporation.
Other brand names and trademarks are the properties and registered brands of their
respective owners.
iii
Table of Contents
Disclaimers.....................................................................................................ii
ESD Precautions ...........................................................................................iii
Chapter 1
Introduction............................................. 1
1.1
Features ...............................................................................................1
1.2
Specifications ......................................................................................2
1.3
Utilities Supported ..............................................................................3
Chapter 2
Board and Pin Assignments .................... 5
2.1
Board Dimensions and Fixing Holes .................................................5
2.2
Board Layout .......................................................................................8
2.3
Assembly Drawing ............................................................................10
2.4
Jumper Settings ................................................................................13
2.4.1
2.4.2
2.4.3
2.4.4
2.5
LVDS Voltage Selection (JP1)................................................................... 14
LVDS Brightness Control Mode Setting (JP2)........................................... 14
Auto Power On (JP3) ................................................................................ 14
Restore BIOS Optimal Defaults (JP4)....................................................... 14
Connectors ........................................................................................15
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6
2.5.7
2.5.8
2.5.9
2.5.10
2.5.11
2.5.12
2.5.13
2.5.14
2.5.15
2.5.16
Chapter 3
SMBus Connector (CN1) .......................................................................... 16
Thru Front I/O Connectors (CN2 and CN3) .............................................. 16
Serial ATA Power Connector (CN4) .......................................................... 17
LVDS Connector (CN5) ............................................................................. 18
Inverter Connector (CN6).......................................................................... 20
External Speaker and Internal Buzzer Header (CN7) ............................... 20
Fan Power Connector (CN8)..................................................................... 20
Power LED Header (CN9)......................................................................... 20
DC Power Connector (CN11) (Optional) ................................................... 21
DisplayPort Connector (CN12).................................................................. 21
DC Power Jack (CN13)............................................................................. 21
VGA Connector (CN14)............................................................................. 22
Ethernet Port (LAN1)................................................................................. 22
Serial ATA Connector (SATA1) .................................................................. 22
CMOS Battery Connector (BAT1) ............................................................. 23
CFast™ Socket (SCFAST1)...................................................................... 23
I/O Board................................................ 25
3.1
AX93265 Specifications ....................................................................25
3.2
AX93265 Dimensions and Fixing Holes ..........................................26
iv
3.3
AX93265 Board Layout .....................................................................27
3.4
AX93265 Jumper Settings ................................................................28
3.4.1
3.5
COM1 Data/Power Selection (JP1 and JP2) ............................................ 28
AX93265 Connectors, Switches and LED .......................................29
3.5.1
3.5.2
3.5.3
3.5.4
3.5.5
3.5.6
3.5.7
3.5.8
3.5.9
System Reset Switch (CN1)...................................................................... 29
Audio Jack (CN2) ...................................................................................... 29
COM1 Connector (CN3)............................................................................ 30
COM2 Connector (CN4)............................................................................ 30
System Power Switch (CN5)..................................................................... 30
HDD Power Connector (CN8) ................................................................... 31
Thru Front I/O Connectors (CN9 and CN10) ............................................ 31
Power and HDD LED Indicator (D1) ......................................................... 32
USB Connectors (USB1 and USB2) ......................................................... 32
Chapter 4
Hardware Description ........................... 33
4.1
Microprocessors ...............................................................................33
4.2
BIOS ...................................................................................................33
4.3
System Memory.................................................................................33
4.4
I/O Port Address Map........................................................................34
4.5
Interrupt Controller (IRQ) Map .........................................................36
4.6
Memory Map ......................................................................................39
Chapter 5
AMI BIOS Setup Utility .......................... 41
5.1
Starting...............................................................................................41
5.2
Navigation Keys ................................................................................41
5.3
Main Menu..........................................................................................42
5.4
Advanced Menu.................................................................................43
5.5
Chipset Menu.....................................................................................48
5.6
Boot Menu..........................................................................................53
5.7
Security Menu....................................................................................54
5.8
Save & Exit Menu ..............................................................................55
Chapter 6
Drivers Installation................................ 57
6.1
Installing Chipset Driver ...................................................................57
6.2
Installing Graphics Media Accelerator Driver .................................60
6.3
Installing Ethernet Driver..................................................................64
6.4
Installing Audio Driver ......................................................................66
6.5
Installing AHCI Driver........................................................................68
Appendix A
Watchdog Timer................................... 73
v
About Watchdog Timer................................................................................73
How to Use Watchdog Timer.......................................................................73
Sample Program ..........................................................................................74
vi
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Chapter 1
Introduction
The PICO830 is a Pico-ITX board with Intel® AtomTM N2800/N2600 and NM10 chipset that
delivers outstanding system performance through high-bandwidth interfaces, multiple I/O
functions for interactive applications and various embedded computing solutions.
The board has one 204-pin unbuffered SO-DIMM socket for DDR3 800/1066MHz SO-DIMM
memory, maximum memory capacity up to 4GB (N2600 supports DDR3 800MHz up to 2GB
only). It also features one Gigabit/Fast Ethernet, one serial ATA port with transfer rates up to
3Gb/s, four USB 2.0 high speed compliant, and built-in high definition audio codec that can
achieve the best stability and reliability for industrial applications. Additionally, it provides you
with unique embedded features, such as two serial ports (one RS-232/422/485 and one
RS-232) and Pico-ITX form factor that applies an extensive array of PC peripherals. The board
can be enhanced by its built-in watchdog timer function, a special industrial feature not
commonly seen on other motherboards.
1.1






Features
Intel® AtomTM dual core N2800 (1.86GHz) and N2600 (1.6GHz)
Intel® NM10 chipset
1 DDR3 SO-DIMM supports up to 4GB memory capacity
4 USB 2.0 ports
2 COM ports
+5V only DC-in supported
Introduction
1
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
1.2

Specifications
CPU



Intel® AtomTM dual core N2800 1.86 GHz.
Intel® AtomTM dual core N2600 1.6 GHz
Thermal Solution
Fanless but with reserved fan connector.


System Chipset
Intel® NM10 chipset.


BIOS
American Megatrends Inc. UEFI (Unified Extensible Firmware Interface) BIOS.
16Mbit SPI Flash, DMI, Plug and Play.
RPL/PXE Ethernet Boot ROM.




System Memory
One 204-pin unbuffered DDR3 SO-DIMM socket.
Maximum up to 4GB DDR3 1066MHz memory for N2800.
Maximum up to 2GB DDR3 800MHz memory for N2600.




Onboard Multi I/O
Controller: Fintek F81801U.
Serial Ports: One port for RS-232/422/485 and one port for RS-232.



Serial ATA
One SATA-300 connector.


CFast™ Socket
One CFast™ socket.


USB Interface
Four USB ports with fuse protection and complies with USB Spec. Rev. 2.0.


Display
A standard 15-pin D-Sub VGA connector which co-layout with a DisplayPort
connector.

One 40-pin connector for 18/24-bit single/dual channel LVDS and one 8-pin inverter
connector. LVDS resolution is up to 1600x1200 in 24-bit dual channel.


Watchdog Timer
1~255 seconds or minutes; up to 255 levels.


Ethernet
One port with Intel® 82583V for Gigabit/Fast Ethernet.
One RJ-45 connector.



Audio
HD audio compliant with Realtek ALC662.
MIC-in and line-out in pin header.


2
Introduction
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

Power Input
DC power jack connector, co-layout with 1x2-pin right angle connector.
+5V DC-in only.
AT auto power on function supported.




Power Management
ACPI (Advanced Configuration and Power Interface).


Form Factor
Pico-ITX form factor.

Note: All specifications and images are subject to change without notice.
1.3




Utilities Supported
Chipset and graphics driver
Ethernet driver (82583V)
Audio driver
Unify API for hardware monitor and watchdog timer
Introduction
3
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
This page is intentionally left blank.
4
Introduction
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Chapter 2
Board and Pin Assignments
2.1
Board Dimensions and Fixing Holes
Top View
Board and Pin Assignments
5
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Bottom View
6
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Side View
Board and Pin Assignments
7
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.2
Board Layout
Top View
8
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Bottom View
Board and Pin Assignments
9
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.3
Assembly Drawing
Heatsink for PICO830 (see image below):
First of all, screw heatsink into heatspreader.
x4
10
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
For thermal dissipation, a heatspreader enables the PICO830’s components to dissipate heat
efficiently. Images below illustrate how to install the heat spreader.
Installing Heatspreader
The PICO830 has four assembly holes for installing heatspreader plate. Align both of them and
use the four screws to firmly secure the heatspreader plate to the PICO830. Be careful not to
over-tighten the screws.
x4
Board and Pin Assignments
x4
x4
11
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Installing Heatspreader and AX93265 I/O Board
Gently insert I/O Board into CN2 and CN3. Align four assembly holes and use the four screws
to firmly secure the heatspreader plate and I/O board to the PICO830. Be careful not to
over-tighten the screws. See chapter 3 for details of AX93265 I/O board.
x4
12
x2
x2
x4
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.4
Jumper Settings
Jumper is a small component consisting of jumper clip and jumper pins. Install jumper clip on 2
jumper pins to close. And remove jumper clip from 2 jumper pins to open. Below illustration
shows how to set up jumper.
Properly configure jumper settings on the PICO830 to meet your application purpose. Below
you can find a summary table of all jumpers and onboard default settings.
Note: Once the default jumper setting needs to be changed, please do it under power-off
condition.
Jumper
JP1
JP2
JP3
JP4
Description
LVDS Voltage Selection
Default: +3.3V
LVDS Brightness Control Mode Setting
Default: PWM Mode
Auto Power On
Default: Disable
Restore BIOS Optimal Defaults
Default: Normal Operation
Board and Pin Assignments
Setting
1-2 Close
1-2 Close
2-3 Close
1-2 Close
13
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.4.1
LVDS Voltage Selection (JP1)
The board supports voltage selection for flat panel displays. Use JP1 to set LVDS
connector (CN5) pin 1~6 VCCM to +3.3V or +5V.
Function
Setting
+3.3V (Default)
+5V
1-2 close
2-3 close
2.4.2
LVDS Brightness Control Mode Setting (JP2)
The JP2 enables you to select PWM or voltage control mode for inverter connector
(CN6). These two control modes are for adjusting the brightness of LVDS panel.
Function
Setting
PWM mode (Default)
Voltage mode
1-2 close
2-3 close
2.4.3
Auto Power On (JP3)
If JP3 is enabled for AC power input, the system will be automatically power on without
pressing soft power button. If JP3 is disabled for AC power input, it is necessary to
manually press soft power button to power on the system.
Function
Setting
Disable auto power on (Default)
Enable auto power on
2-3 close
1-2 close
Note:
2.4.4
This function is similar to the feature of power on after power failure, which is
controlled by hardware circuitry instead of BIOS.
Restore BIOS Optimal Defaults (JP4)
Put jumper clip to pin 2-3 for a few seconds then move it back to pin 1-2. Doing this
procedure can restore BIOS optimal defaults.
14
Function
Setting
Normal (Default)
1-2 close
Restore BIOS optimal defaults
2-3 close
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.5
Connectors
Signals go to other parts of the system through connectors. Loose or improper connection
might cause problems, please make sure all connectors are properly and firmly connected.
Here is a summary table which shows all connectors on the hardware.
Connector
Description
CN1
SMBus Connector
CN2
Thru Front I/O Connector 1
CN3
Thru Front I/O Connector 2
CN4
Serial ATA Power Connector
CN5
LVDS Connector
CN6
Inverter Connector
CN7
External Speaker and Internal Buzzer Header
CN8
Fan Power Connector
CN9
Power LED Header
CN11
DC Power Connector (Optional)
CN12
DisplayPort Connector
CN13
DC Power Jack
CN14
VGA Connector
LAN1
Ethernet Port
SATA1
Serial ATA Connector
BAT1
CMOS Battery Connector
SCFAST1
CFastTM Socket
SDIMM1
DDR3 SO-DIMM Connector
Board and Pin Assignments
15
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.5.1
SMBus Connector (CN1)
This connector is for SMBus interface. The SMBus (System Management Bus) is a
simple 2-wire bus for the purpose of lightweight communication.
Pin
Signal
1
2
3
SMBus clock
SMBus data
GND
2.5.2
Thru Front I/O Connectors (CN2 and CN3)
The pin assignments of CN2 are given as follows.
16
Pin
Signal
Pin
Signal
1
3
5
7
9
11
13
15
17
19
DCD2
RXD2
TXD2
DTR2
GND
DCD1
RXD1
TXD1
DTR1
GND
2
4
6
8
10
12
14
16
18
20
DSR2
RTS2
CTS2
RI2
+5V
DSR1
RTS1
CTS1
RI1
+5V
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
The pin assignments of CN3 are given as follows.
Pin
Signal
Pin
Signal
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
MIC
LINE_IN_L
LINE_IN_R
GND
GND
USB1_PWR
USB0_DATAUSB0_DATA+
GND
GND
USB2_PWR
USB2_DATAUSB2_DATA+
GND
GND
+5V
RESET
+5V
HDD_LED
GND
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
LINE_OUT_L
LINE_OUT_R
GND
GND
GND
USB1_PWR
USB1_DATAUSB1_DATA+
GND
GND
USB2_PWR
USB3_DATAUSB3_DATA+
GND
GND
PS_ON
GND
+5V
N.C
+5V
Note:
2.5.3
It is suggested to insert AX93265 I/O board into CN2 and CN3 (see chapter 3
for details of AX93265).
Serial ATA Power Connector (CN4)
The CN4 is a 2.5mm pitch wafer connector for serial ATA (SATA) power interface.
Pin
Signal
1
2
+5V
GND
Board and Pin Assignments
2 1
17
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.5.4
LVDS Connector (CN5)
This board has a 40-pin connector for LVDS LCD interface. It is strongly recommended
to use the matching JST SHDR-40VS-B 40-pin connector for LVDS interface. Pin 1~6
VCCM can be set to +3.3V or +5V by setting JP1 (see section 2.4.1).
18-bit single channel
18
Pin
Signal
Pin
Signal
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
VCCM
VCCM
VCCM
N.C
GND
N.C
N.C
GND
N.C
N.C
GND
Channel A D0Channel A D0+
GND
Channel A D1Channel A D1+
GND
Channel A D2Channel A D2+
GND
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
VCCM
VCCM
VCCM
N.C
GND
N.C
N.C
GND
N.C
N.C
GND
N.C
N.C
GND
N.C
N.C
GND
Channel A CLKChannel A CLK+
GND
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
18-bit dual channel
24-bit single channel
Pin Signal
Pin Signal
Pin Signal
Pin Signal
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
VCCM
VCCM
VCCM
N.C
GND
N.C
N.C
GND
N.C
N.C
GND
Channel A D0Channel A D0+
GND
Channel A D1Channel A D1+
GND
Channel A D2Channel A D2+
GND
VCCM
VCCM
VCCM
N.C
GND
N.C
N.C
GND
N.C
N.C
GND
N.C
N.C
GND
Channel A D3Channel A D3+
GND
Channel A CLKChannel A CLK+
GND
VCCM
VCCM
VCCM
N.C
GND
N.C
N.C
GND
Channel B CLKChannel B CLK+
GND
Channel A D0Channel A D0+
GND
Channel A D1Channel A D1+
GND
Channel A D2Channel A D2+
GND
VCCM
VCCM
VCCM
N.C
GND
Channel B D0Channel B D0+
GND
Channel B D1Channel B D1+
GND
Channel B D2Channel B D2+
GND
N.C
N.C
GND
Channel A CLKChannel A CLK+
GND
24-bit dual channel
Pin Signal
Pin Signal
1
VCCM
2
VCCM
3
VCCM
4
VCCM
5
VCCM
6
VCCM
7
N.C
8
N.C
9
GND
10
GND
11 Channel B D3-
12
Channel B D0-
13 Channel B D3+
14
Channel B D0+
15 GND
16
GND
17 Channel B CLK-
18
Channel B D1-
19 Channel B CLK+
20
Channel B D1+
21 GND
22
GND
23 Channel A D0-
24
Channel B D2-
25 Channel A D0+
26
Channel B D2+
27 GND
28
GND
29 Channel A D1-
30
Channel A D3-
31 Channel A D1+
32
Channel A D3+
33 GND
34
GND
35 Channel A D2-
36
Channel A CLK-
37 Channel A D2+
38
Channel A CLK+
39 GND
40
GND
Board and Pin Assignments
19
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.5.5
Inverter Connector (CN6)
This is a DF13-8S-1.25C 8-pin connector for inverter. We strongly recommend you to
use the matching DF13-8S-1.25C connector to avoid malfunction.
Pin
Signal
1
2
3
4
5
6
7
8
+5V
+5V
+5V
BL_ENABLE
GND
GND
GND
BR_CTRL
2.5.6
1
8
External Speaker and Internal Buzzer Header (CN7)
Pin 1, 2 and 3 connect the case-mounted speaker unit or internal buzzer. While
connecting the CPU board to an internal buzzer, please set pin 2 and 3 closed (default);
while connecting to an external speaker, you need to set pins 2 and 3 opened and
connect the speaker cable to pin 1(+) and pin 2(-).
Pin
Signal
1
2
3
EXT SPK+
EXT SPKBuzzer
2.5.7
Fan Power Connector (CN8)
The CN8 is a 2.5mm pitch wafer connector for fan power interface.
Pin
Signal
1
2
+5V
GND
2.5.8
2 1
Power LED Header (CN9)
The CN9 is for power LED interface.
20
Pin
Signal
1
2
+5V
GND
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.5.9
DC Power Connector (CN11) (Optional)
The CN11 (co-layout with CN13) is a 1x2-pin wafer connector in right angle
(pitch=3.96mm) for DC +5V input.
Pin
Signal
1
2
+5V
GND
2.5.10
DisplayPort Connector (CN12)
The DisplayPort interface is available through connector CN12 which is also co-layout
with VGA connector (CN14).
Pin
Signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DDPC_0P
GND
DDCP_0N
DDPC_1P
GND
DDCP_1N
DDPC_2P
GND
DDCP_2N
DDPC_3P
GND
DDCP_3N
HDMI_DETE
GND
DCP_AUX_DP
GND
DCP_AUX_DN
DDC_HDP
GND
DP_PWR
2.5.11
DC Power Jack (CN13)
The CN13 is a DC power jack for DC +5V input.
Pin
Signal
1
2
3
4
GND
GND
+5V
+5V
Board and Pin Assignments
21
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.5.12
VGA Connector (CN14)
The CN14 is a standard 15-pin D-Sub connector which is co-layout with DisplayPort
connector (CN12). It is commonly used for CRT VGA display. This VGA interface
configuration can be configured via software utility.
Pin
Signal
Pin
Signal
1
3
5
7
9
11
13
15
RED
BLUE
GND
GND
CRT_VCC
N.C
Hsync
DDC_CLK
2
4
6
8
10
12
14
GREEN
N.C
CRT_DETE
GND
GND
DDC_DATA
Vsync
2.5.13
Ethernet Port (LAN1)
The board has one RJ-45 ethernet connector. Connection can be established by
plugging one end of the ethernet cable into this RJ-45 connector and the other end
(phone jack) to a 1000/100/10-Base-T hub.
Pin
L1
L2
L3
L4
A
B
Signal
Pin
MDI0P
L5
MDI0N
L6
MDI1P
L7
MDI1N
L8
Active LED (Yellow)
100 LAN LED (Green)
(Orange)
2.5.14
Signal
MDI2P
MDI2N
MDI3P
MDI3N
/ 1000 LAN LED
Serial ATA Connector (SATA1)
This Serial Advanced Technology Attachment (Serial ATA or SATA) connector is for
high-speed SATA interface port. It is a computer bus interface for connecting to devices
such as hard disk drives.
22
Pin
Signal
1
2
3
4
5
6
7
GND
TXP
TXN
GND
RXN
RXP
GND
1
7
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.5.15
CMOS Battery Connector (BAT1)
This connector is for CMOS battery interface.
Pin
Signal
1
2
+3.3V
GND
2.5.16
CFast™ Socket (SCFAST1)
The board is equipped with a CFastTM socket on the bottom side to support a CFastTM
card which is based on the Serial ATA bus. The socket is specially designed to avoid
incorrect installation of the CFastTM card. When installing or removing the CFastTM card,
please make sure the system power is off. The CFastTM card by default identifies itself as
C: or D: drive in your PC system.
Pin
Signal
Pin
Signal
S1
S2
S3
S4
S5
S6
S7
GND
TXP
TXN
GND
RXN
RXP
GND
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
N.C
GND
N.C
N.C
N.C
N.C
GND
N.C
N.C
N.C
N.C
N.C
+3.3V
+3.3V
GND
GND
N.C
Board and Pin Assignments
23
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
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24
Board and Pin Assignments
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Chapter 3
I/O Board
The AX93265 is an I/O expansion board which is suggested to insert carefully into CN2 and
CN3 of PICO830. Its specifications and detailed information are given in this chapter.
3.1

AX93265 Specifications
Size


29.25mm x 118mm
Features
Supports audio jack (MIC-in/line-out).
Four USB 2.0.
Serial Ports: One port for RS-232/422/485 and one port for RS-232.
Power-on, reset and red/green LED.




Note: All specifications and images are subject to change without notice.
I/O Board
25
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
3.2
AX93265 Dimensions and Fixing Holes
Top View
26
Bottom View
I/O Board
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
3.3
AX93265 Board Layout
Top View
I/O Board
27
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
3.4
AX93265 Jumper Settings
Properly configure jumper settings on the AX93265 I/O board to meet your application purpose.
Below you can find a summary table of all jumpers and onboard default settings.
Note: Once the default jumper setting needs to be changed, please do it under power-off
condition.
Jumper
Description
JP1
COM1 Data/+12V Power Selection
Default: RS-232 Data
CN3 Pin 18: RI
1-2 Close
JP2
COM1 Data/+5V Power Selection
Default: RS-232 Data
CN3 Pin 10: DCD
1-2 Close
3.4.1
Setting
COM1 Data/Power Selection (JP1 and JP2)
The COM1 port has +12V level power capability on RI and +5V level on DCD by setting
JP1 and JP2, respectively. When this port is set to +12V or +5V level, please make sure
its communication mode is RS-232 (see section 5.4).
28
Function
JP1 Setting
Data: Set CN3 pin 18 to RI (Default)
Power: Set CN3 pin 18 to +12V level
1-2 close
2-3 close
Function
JP2 Setting
Data: Set CN3 pin 10 to DCD (Default)
Power: Set CN3 pin 10 to +5V level
1-2 close
2-3 close
I/O Board
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
3.5
AX93265 Connectors, Switches and LED
Signals go to other parts of the system through connectors. Loose or improper connection
might cause problems, please make sure all connectors are properly and firmly connected.
Here is a summary table which shows all connectors, switches and LED on the hardware.
Connector
Description
CN1
System Reset Switch
CN2
Audio Jack
CN3
COM1 Connector
CN4
COM2 Connector
CN5
System Power Switch
CN8
HDD Power Connector
CN9
Thru Front I/O Connector 2
CN10
Thru Front I/O Connector 1
D1
Power and HDD LED indicator
USB1~USB2
USB 2.0 Connectors
3.5.1
System Reset Switch (CN1)
This switch reboots your computer without turning off the power supply. It is a better way
to reboot your system for a longer life of the system power supply.
Function
Description
On
Off
Reset system
Keep system status
3.5.2
Audio Jack (CN2)
This is audio jack with HD audio support. Install audio driver, and then attach audio
devices to CN2.
Pin Color
Signal
Green
Pink
Line-out
MIC-in
I/O Board
29
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
3.5.3
COM1 Connector (CN3)
CN3 is the lower connector of the double-deck DB-9 connector. COM1 comes with
power capability on DCD and RI pins by setting jumpers (see section 3.4.1). The pin
assignments of RS-232/RS-422/RS-485 are listed in table below. If you need COM1 port
to support RS-422 or RS-485, please refer to section 5.4.
Pin
RS-232
RS-422
RS-485
10
11
12
13
14
15
16
17
18
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
TXTX+
RX+
RXNo use
No use
No use
No use
No use
DataData+
N.C
N.C.
No use
No use
No use
No use
No use
3.5.4
CN3
COM2 Connector (CN4)
CN4 is the upper connector of the double-deck DB-9 connector. The pin assignments of
RS-232 are listed as below.
Pin
Signal
1
2
3
4
5
6
7
8
9
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
3.5.5
CN4
System Power Switch (CN5)
This switch is for turning on/off the system power.
30
Function
Description
On
Off
Turn on/off system
Keep system status
I/O Board
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
3.5.6
HDD Power Connector (CN8)
This connector is for Hard Disk Drive (HDD) power interface.
Pin
Signal
1
2
3
4
+5V
GND
GND
+12V
Note: The maximum current for pin 4 is 0.4A.
3.5.7
Thru Front I/O Connectors (CN9 and CN10)
The pin assignments of CN10 are given as follows.
Pin
Signal
Pin
Signal
1
3
5
7
9
11
13
15
17
19
DCD2
RXD2
TXD2
DTR2
GND
DCD1
RXD1
TXD1
DTR1
GND
2
4
6
8
10
12
14
16
18
20
DSR2
RTS2
CTS2
RI2
+5V
DSR1
RTS1
CTS1
RI1
+5V
I/O Board
31
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
The pin assignments of CN9 are given as follows.
Pin
Signal
Pin
Signal
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
MIC
LINE_IN_L
LINE_IN_R
GND
GND
USB1_PWR
USB0_DATAUSB0_DATA+
GND
GND
USB2_PWR
USB2_DATAUSB2_DATA+
GND
GND
+5V
RESET
+5V
HDD_LED
GND
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
LINE_OUT_L
LINE_OUT_R
GND
GND
GND
USB1_PWR
USB1_DATAUSB1_DATA+
GND
GND
USB2_PWR
USB3_DATAUSB3_DATA+
GND
GND
PS_ON
GND
+5V
N.C
+5V
Note: Please gently insert CN9 and CN10 into CN2 and CN3 of PICO830.
3.5.8
Power and HDD LED Indicator (D1)
The red LED is linked to Hard Disk Drive (HDD) activity signal. LED flashes every time
HDD is accessed.
The power LED (green) lights up and will remain steady while the system is powered on.
LED Color
Description
Red
Green
Hard disk drive activity
Power on/off
3.5.9
USB Connectors (USB1 and USB2)
The board comes with two double-deck Universal Serial Bus (compliant with USB 2.0
(480Mbps)) connectors on the rear I/O which are for installing USB peripherals such as
keyboard, mouse, scanner, etc.
32
Pin
Signal
Pin
Signal
1
2
3
4
+5V
USB1/3_DATAUSB1/3_DATA+
GND
5
6
7
8
+5V
USB2/4_DATAUSB2/4_DATA+
GND
I/O Board
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Chapter 4
Hardware Description
4.1
Microprocessors
The PICO830 supports Intel® AtomTM N2800/N2600 processors, which enable your system to
operate under Windows® 7 environments. The system performance depends on the
microprocessor. Make sure all correct settings are arranged for your installed microprocessor
to prevent the CPU from damages.
4.2
BIOS
The PICO830 uses AMI Plug and Play BIOS with a single 16Mbit SPI Flash.
4.3
System Memory
The PICO830 supports one 204-pin DDR3 SO-DIMM socket for a maximum memory of 4GB
DDR3 SDRAMs. The memory module comes in sizes of 1GB, 2GB and 4GB.
Hardware Description
33
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
4.4
I/O Port Address Map
The Intel® AtomTM N2800/N2600 processors communicate via I/O ports. Total 1KB port
addresses are available for assigning to other devices via I/O expansion cards.
34
Hardware Description
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Hardware Description
35
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
4.5
Interrupt Controller (IRQ) Map
The interrupt controller (IRQ) mapping list is shown as follows:
36
Hardware Description
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Hardware Description
37
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
38
Hardware Description
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
4.6
Memory Map
The memory mapping list is shown as follows:
Hardware Description
39
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
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40
Hardware Description
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Chapter 5
AMI BIOS Setup Utility
The AMI UEFI BIOS provides users with a built-in setup program to modify basic system
configuration. All configured parameters are stored in a flash chip to save the setup information
whenever the power is turned off. This chapter provides users with detailed description about
how to set up basic system configuration through the AMI BIOS setup utility.
5.1
Starting
To enter the setup screens, follow the steps below:
1.
2.
Turn on the computer and press the <Del> key immediately.
After you press the <Del> key, the main BIOS setup menu displays. You can access the
other setup screens from the main BIOS setup menu, such as the Advanced and Chipset
menus.
Note: If your computer can not boot after making and saving system changes with Setup,
you can restore BIOS optimal defaults by setting JP4 (see section 2.4.4).
It is strongly recommended that you should avoid changing the chipset’s defaults. Both AMI
and your system manufacturer have carefully set up these defaults that provide the best
performance and reliability.
5.2
Navigation Keys
The BIOS setup/utility uses a key-based navigation system called hot keys. Most of the BIOS
setup utility hot keys can be used at any time during the setup navigation process. These keys
include <F1>, <F2>, <Enter>, <ESC>, <Arrow> keys, and so on.
Note: Some of the navigation keys differ from one screen to another.
AMI BIOS Setup Utility
41
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Hot Keys
Description
 Left/Right
The Left and Right <Arrow> keys allow you to select a setup screen.
 Up/Down
The Up and Down <Arrow> keys allow you to select a setup screen or
sub-screen.
+ Plus/Minus
The Plus and Minus <Arrow> keys allow you to change the field value of a
particular setup item.
Tab
The <Tab> key allows you to select setup fields.
F1
The <F1> key allows you to display the General Help screen.
F2
The <F2> key allows you to Load Previous Values.
F3
The <F3> key allows you to Load Optimized Defaults.
F4
The <F4> key allows you to save any changes you have made and exit
Setup. Press the <F4> key to save your changes.
Esc
The <Esc> key allows you to discard any changes you have made and exit
the Setup. Press the <Esc> key to exit the setup without saving your
changes.
Enter
The <Enter> key allows you to display or change the setup option listed for a
particular setup item. The <Enter> key can also allow you to display the
setup sub- screens.
5.3
Main Menu
When you first enter the setup utility, you will enter the Main setup screen. You can always
return to the Main setup screen by selecting the Main tab. System Time/Date can be set up as
described below. The Main BIOS setup screen is shown below.
42
AMI BIOS Setup Utility
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

System Date/Time
Use this option to change the system time and date. Highlight System Time or System
Date using the <Arrow> keys. Enter new values through the keyboard. Press the <Tab>
key or the <Arrow> keys to move between fields. The date must be entered in MM/DD/YY
format. The time is entered in HH:MM:SS format.
5.4

Advanced Menu
Launch PXE OpROM
Use this item to enable or disable the boot ROM function of the onboard LAN chip when
the system boots up.
The Advanced menu also allows users to set configuration of the CPU and other system
devices. You can select any of the items in the left frame of the screen to go to the sub menus:
►
►
►
►
►
ACPI Settings
CPU Configuration
IDE Configuration
F81801 Super IO Configuration
F81801 H/W Monitor
For items marked with “”, please press <Enter> for more options.
AMI BIOS Setup Utility
43
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

ACPI Settings
ACPI Sleep State
When the sleep button is pressed, the system will be in the ACPI sleep state. The default
is S1 (CPU Stop Clock).

44
CPU Configuration
This screen shows the CPU Configuration.
AMI BIOS Setup Utility
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

IDE Configuration
In the IDE Configuration menu, you can see the currently installed hardware in the SATA
ports. During system boot up, the BIOS automatically detects the presence of SATA
devices.
Configure SATA as
Determine how SATA controller(s) operate. Operation mode options are IDE Mode and
AHCI (Advanced Host Controller Interface) Mode.
AMI BIOS Setup Utility
45
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

F81801 Super IO Configuration
You can use this screen to select options for the Super IO Configuration, and change the
value of the selected option. A description of the selected item appears on the right side of
the screen. For items marked with “”, please press <Enter> for more options.
Serial Port 2 Configuration
Use this option to enable or disable the serial port 2.
Serial Port 1 Configuration
Use this option to enable or disable and set RS-422/RS-485 mode for the serial port 1.
46
AMI BIOS Setup Utility
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

F81801 H/W Monitor
This screen monitors hardware health status.
This screen displays the temperature of CPU and system voltages (Vcore and +5V).
AMI BIOS Setup Utility
47
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
5.5
Chipset Menu
The Chipset menu allows users to change the advanced chipset settings. You can select any
of the items in the left frame of the screen to go to the sub menus:
► Host Bridge
For items marked with “”, please press <Enter> for more options.
48
AMI BIOS Setup Utility
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

Host Bridge
This screen allows users to configure parameters of Host Bridge chipset.
Memory Frequency and Timing
Use this item to refer to the information related to memory frequency.
Intel IGD Configuration
Use this item to configure internal graphics controller.
AMI BIOS Setup Utility
49
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

50
Memory Frequency and Timing
This screen shows the memory frequency information.
AMI BIOS Setup Utility
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

Intel IGD Configuration
or
IGFX – Boot Type
Select the video device which will be activated during POST (Power-On Self Test). This
has no effect if external graphics present.
AMI BIOS Setup Utility
51
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
DP-LVDS Panel Type
Select LVDS panel resolution.
Brightness
Select the brightness percentage of LVDS panel. Its range is from 30% to 100%. The
default is 70%.
52
AMI BIOS Setup Utility
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
5.6
Boot Menu
The Boot menu allows users to change boot options of the system.

Setup Prompt Timeout
Number of seconds to wait for setup activation key. 65535(0xFFFF) means indefinite
waiting.

GateA20 Active
If Upon Request is selected, GA20 can be disabled using BIOS services. If Always is
selected, disabling G20 is not allowed; this option is useful when any RT code is executed
above 1MB.

Boot Option Priorities
These are settings for boot priority. Specify the boot device priority sequence from the
available devices.

Hard Drive BBS Priorities
Set the order of the legacy devices in this group.
AMI BIOS Setup Utility
53
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
5.7
Security Menu
The Security menu allows users to change the security settings for the system.

Administrator Password
This item indicates whether an administrator password has been set (installed or
uninstalled).

User Password
This item indicates whether an user password has been set (installed or uninstalled).
54
AMI BIOS Setup Utility
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
5.8
Save & Exit Menu
The Save & Exit menu allows users to load your system configuration with optimal or fail-safe
default values.

Save Changes and Exit
When you have completed the system configuration changes, select this option to leave
Setup and return to Main Menu. Select Save Changes and Exit from the Save & Exit menu
and press <Enter>. Select Yes to save changes and exit.

Discard Changes and Exit
Select this option to quit Setup without making any permanent changes to the system
configuration and return to Main Menu. Select Discard Changes and Exit from the Save &
Exit menu and press <Enter>. Select Yes to discard changes and exit.

Save Changes and Reset
When you have completed the system configuration changes, select this option to leave
Setup and reboot the computer so the new system configuration parameters can take
effect. Select Save Changes and Reset from the Save & Exit menu and press <Enter>.
Select Yes to save changes and reset.

Discard Changes and Reset
Select this option to quit Setup without making any permanent changes to the system
configuration and reboot the computer. Select Discard Changes and Reset from the Save
& Exit menu and press <Enter>. Select Yes to discard changes and reset.

Save Changes
When you have completed the system configuration changes, select this option to save
changes. Select Save Changes from the Save & Exit menu and press <Enter>. Select Yes
to save changes.
AMI BIOS Setup Utility
55
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board

Discard Changes
Select this option to quit Setup without making any permanent changes to the system
configuration. Select Discard Changes from the Save & Exit menu and press <Enter>.
Select Yes to discard changes.

Restore Defaults
It automatically sets all Setup options to a complete set of default settings when you select
this option. Select Restore Defaults from the Save & Exit menu and press <Enter>.

Save as User Defaults
Select this option to save system configuration changes done so far as User Defaults.
Select Save as User Defaults from the Save & Exit menu and press <Enter>.

Restore User Defaults
It automatically sets all Setup options to a complete set of User Defaults when you select
this option. Select Restore User Defaults from the Save & Exit menu and press <Enter>.

Boot Override
Select a drive to immediately boot that device regardless of the current boot order.
56
AMI BIOS Setup Utility
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Chapter 6
Drivers Installation
The device drivers are located on the product information CD that comes with the PICO830
Series package. The auto-run function of drivers will guide you to install the utilities and device
drivers under Windows system. You can follow the onscreen instructions to install these
devices:





Chipset
Graphics
Ethernet
Audio
AHCI
6.1
Installing Chipset Driver
1. Run the infinst_autol.exe program from the driver directory in product information CD.
Click “Next” to next step.
Drivers Installation
57
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2. A Readme File Information screen appears to show you the system requirements and
installation information. Click “Next” to next step.
3. Please wait while setup processes the following operations.
58
Drivers Installation
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
4. You are suggested to select “Yes, I want to restart this computer now”. Click “Finish” to
complete the setup process and reboot.
Drivers Installation
59
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
6.2
Installing Graphics Media Accelerator Driver
1.
Run the setup.exe program from the driver directory in product information CD. Click
“Next” to next step.
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Drivers Installation
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.
When Intel® License Agreement screen appears, please click “Yes” to next step.
3.
A Readme File Information screen appears to show you the system requirements and
installation information. Click “Next” to next step.
Drivers Installation
61
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
4.
Please wait while setup processes the following operations.
5.
When the following screen appears, please click “Next”.
62
Drivers Installation
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
6.
You are suggested to select “Yes, I want to restart this computer now”. Click “Finish” to
complete the setup process and reboot.
Note: After the computer reboots, the display is in
extended mode. Please click hot key <Ctrl+Alt+F1>
to switch display back to single mode.
Drivers Installation
63
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
6.3
Installing Ethernet Driver
1.
Unzip PROWin32 for ethernet driver from the driver directory in product information CD.
Click “Next” to start the installation.
64
Drivers Installation
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.
When the following screen appears, please select the program features you want to
install. Click “Next” to continue.
3.
Click “Finish” to complete the installation.
Drivers Installation
65
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
6.4
Installing Audio Driver
1.
Run the setup.exe for audio from the driver directory in product information CD. Click
“Next” to continue.
66
Drivers Installation
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.
You are suggested to select “Yes, I want to restart my computer now”. Click “Finish” to
complete the setup process and reboot.
Drivers Installation
67
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
6.5
Installing AHCI Driver
1.
Run the iata_enu_10.8.0.1003.exe for AHCI from the driver directory in product
information CD. Click “Next” to continue.
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Drivers Installation
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
2.
When Intel® License Agreement screen appears, please click “Yes” to next step.
3.
A Readme File Information screen appears to show you the system requirements and
installation information. Click “Next” to continue.
Drivers Installation
69
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
4.
Please wait while setup processes the following operations.
5.
When the following screen appears, please click “Next”.
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Drivers Installation
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
6.
You are suggested to select “Yes, I want to restart this computer now”. Click “Finish” to
complete the setup process and reboot.
Drivers Installation
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PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
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Drivers Installation
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Appendix A
Watchdog Timer
About Watchdog Timer
Software stability is major issue in most application. Some embedded systems are not
watched by human for 24 hours. It is usually too slow to wait for someone to reboot when
computer hangs. The systems need to be able to reset automatically when things go wrong.
The watchdog timer gives us solution.
The watchdog timer is a counter that triggers a system reset when it counts down to zero from
a preset value. The software starts counter with an initial value and must reset it periodically. If
the counter ever reaches zero which means the software has crashed, the system will reboot.
How to Use Watchdog Timer
The I/O port base addresses of watchdog timer are 2E (hex) and 2F (hex). The 2E (hex) and
2F (hex) are address and data port respectively.
Assume that program A is put in a loop that must execute at least once every 10ms. Initialize
watchdog timer with a value bigger than 10ms. If the software has no problems; watchdog
timer will never expire because software will always restart the counter before it reaches zero.
Begin
Begin
Next
Enable and Initialize
Watchdog Timer
Next
Enable and Initialize
Watchdog Timer
Next
Program
A
Next
Disable Watchdog
Timer
Next
Watchdog Timer
Next
Program
A
Next
Reset Watchdog
Timer
Next
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PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
Sample Program
Assembly sample code :
;Enable
mov
mov
out
out
WDT:
dx,2Eh
al,87
dx,al
dx,al
;Select
mov
mov
out
mov
mov
out
Logic device:
dx,2Eh
al,07h
dx,al
dx,2Fh
al,08h
dx,al
;Un-lock super I/O
;Activate WDT:
mov
dx,2Eh
mov
al,30h
out
dx,al
mov
dx,2Fh
mov
al,01h
out
dx,al
;Set Second or Minute :
mov
dx,2Eh
mov
al,0F5h
out
dx,al
mov
dx,2Fh
mov
out
al,Nh
dx,al
;N=00h or 08h(see below
Note)
;Set base timer :
mov
dx,2Eh
mov
al,0F6h
out
dx,al
mov
dx,2Fh
mov
al,Mh
;M=00h,01h,...FFh (hex),Value=0 to 255
out
;(see below
dx,al
;Disable WDT:
mov
dx,2Eh
mov
al,30h
out
dx,al
mov
dx,2Fh
mov
al,00h
out
dx,al
Note)
;Can be disabled at any time
Note:
If N=00h, the time base is set to second.
M = time value
00: Time-out Disable
01: Time-out occurs after 1 second
02: Time-out occurs after 2 seconds
03: Time-out occurs after 3 seconds
.
.
FFh: Time-out occurs after 255 seconds
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Watchdog Timer
PICO830 Intel® AtomTM N2800/N2600 Processor Pico-ITX Board
If N=08h, the time base is set to minute.
M = time value
00: Time-out Disable
01: Time-out occurs after 1 minute
02: Time-out occurs after 2 minutes
03: Time-out occurs after 3 minutes
.
.
FFh: Time-out occurs after 255 minutes
Watchdog Timer
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