AXIOMTEK PICO820 User Manual

PICO820 Series

Intel Atom™ All-In-One

Pico ITX CPU Board

User’s Manual

ii

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 2010 AXIOMTEK Co., Ltd.

All Rights Reserved
February 2010, Version A4
Printed in Taiwan

iii

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.

Phoenix & AWARD are trademarks of Phoenix Technology Ltd.
IBM, PC/AT, PS/2, VGA are trademarks of International Business
Machines Corporation.

Intel® and Pentium® are trademarks of Intel Corporation.
Winbond is a trademark of Winbond Electronics Corp.

Other brand names and trademarks are the properties and registered
brands of their respective owners.

iv

Table of Contents

Disclaimers......................................................................................................... ii

ESD Precautions ............................................................................................... iii

CHAPTER 1 INTRODUCTION ................................................................................... 1

1.1 Specifications ........................................................................................ 2

1.2 Utilities Supported ................................................................................. 4

CHAPTER 2 JUMPERS AND CONNECTORS .......................................................... 5

2.1 Board Dimensions and Fixing Holes ...................................................... 5

2.2 Board Layout ......................................................................................... 7

2.3 Jumper Settings .................................................................................... 9

2.3.1 Flat Panel Connector Voltage Selection Jumper (JP1) .................. 9

2.3.2 AUTO BUTTON Mode Selection Jumper (JP3) ............................ 10

2.3.3 CompactFlash™ Power Selection Jumper (JP4) .......................... 10

2.3.4 CMOS Clear Jumpers (JP5) ......................................................... 11

2.4 Connectors .......................................................................................... 12

2.4.1 VGA Connector (CN1) .................................................................. 13

2.4.2 DC POWER JACK Connector (CN2) ............................................ 14

2.4.3 DC POWER Connector (CN3) (Optional) ..................................... 14

2.4.4 LPC Interface Connector (CN4) .................................................... 14

2.4.5 LVDS Flat Panel Connector (CN5) ............................................... 15

2.4.6 Serial ATA Power Connector (CN6) .............................................. 16

2.4.7 Flat Panel Bezel Connector (CN7) ................................................ 16

2.4.8 Digital I/O Connector (CN8) .......................................................... 17

2.4.9 LVDS Backlight Connector (CN9) ................................................. 18

2.4.10 Thru Front I/O Connector 1 (CN10) .............................................. 19

2.4.11 Thru Front I/O Connector 2 (CN11) .............................................. 19

2.4.12 SMBUS Connector (CN12) ........................................................... 20

2.4.13 CPLD JTAG Interface Connector (JP2) ........................................ 20

2.4.14 Ethernet Connector (LAN1) .......................................................... 20

2.4.15 Serial ATA Power Connector (SATA1) ......................................... 21

2.4.16 DDRII SODIMM Connector (SCN1) .............................................. 21

2.4.17 CompactFlash™ Socket (SCN2) .................................................. 22

CHAPTER 3 HARDWARE DESCRIPTION .............................................................. 25

3.1 Microprocessors .................................................................................. 25

3.2 BIOS ................................................................................................... 25

3.3 System Memory .................................................................................. 25

3.4 I/O Port Address Map .......................................................................... 26

3.4 I/O Port Address Map .......................................................................... 26

3.5 Interrupt Controller .............................................................................. 27

CHAPTER 4 PHOENIX-AWARD BIOS UTILITY ...................................................... 29

4.1 Entering Setup .................................................................................... 29

4.2 Control Keys ........................................................................................ 30

4.3 Getting Help ........................................................................................ 30

4.4 The Main Menu ................................................................................... 31

4.5 Standard CMOS Setup Menu .............................................................. 32

v

4.6 Advanced BIOS Features .................................................................... 34

4.7 Advanced Chipset Features ................................................................ 37

4.8 Integrated Peripherals ......................................................................... 39

4.9 Power Management Setup .................................................................. 42

4.10 PnP/PCI Configuration Setup .............................................................. 45

4.11 PC Health Status ................................................................................. 47

4.12 Load Optimized Defaults ..................................................................... 48

4.13 Set Supervisor/User Password ............................................................ 49

4.14 Save & Exit Setup ............................................................................... 50

4.15 Exit Without Saving ............................................................................. 51

CHAPTER 5 INSTALLATION OF DRIVERS ............................................................ 53

5.1 Installing Chipset Driver ....................................................................... 53

5.2 Installing VGA Driver ........................................................................... 56

5.3 Installing LAN Driver ............................................................................ 60

5.4 Installing Audio Driver.......................................................................... 62

APPENDIX A WATCHDOG TIMER ......................................................................... 65

APPENDIX B DIGITAL I/O ...................................................................................... 67

vi

MEMO

PICO820 Series All-In-One PICO ITX Board User’s Manual

1

CHAPTER 1

INTRODUCTION

The PICO820 is a Pico-ITX board with support for Intel
processor Z500 Series, and integrates chipset Intel® System
Controller Hub US15W that deliver outstanding system performance
through high-bandwidth interfaces, multiple I/O functions for interactive
applications and various embedded computing solutions. The board
has one 200-pin unbuffered SODIMM sockets for DDR2 400/533 MHz
SO-DIMM memory, maximum memory capacity up to 2GB. It also
features Gigabit/Fast Ethernet, one serial ATA port, four USB 2.0 high
speed compliant, built-in high definition audio codec that can achieve
the best stability and reliability for industrial applications. It provides
you with unique embedded features, such as two serial ports (2x 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,
a special industrial feature not commonly seen on other motherboards.

®

ATOM™

Introduction

PICO820 Series All-In-One PICO ITX Board User’s Manual

2

1.1 Specifications

 CPU

 Intel

 System Chipset

 Intel

 BIOS

 Phoenix-Award BIOS, Y2K compliant
 8Mbit FWH Flash, DMI, Plug and Play
 SmartView for multiple LCD type selection, display

 “Load Optimized Default” to backup customized Setting in

 System Memory

 One x 200-pin unbuffered DDR2 SODIMM socket
 Maximum to 2GB DDR2 400/533 MHz memory

 Onboard Multi I/O

 Controller: Winbond W83627HG
 Serial Ports: two ports for RS-232

®

ATOMTM processor Z500 Series

®

System Controller Hub US15W

mode option and application extension features

the BIOS flash chip to prevent from CMOS battery fail

 CompactFlash™ Socket

 One CompactFlash™ Type II low profile slot

 USB Interface

 Four USB ports with fuse protection and complies with USB

Spec. Rev. 2.0

 Display

 One 2 x 20 LVDS connector, one 7-pin wafer connector for

inverter control

 One D-sub 15-pin slim type connector

 Watchdog Timer

 1~255 seconds; up to 255 levels

Introduction

PICO820 Series All-In-One PICO ITX Board User’s Manual

3

 Ethernet

 One port with RTL8111B for Gigabit/Fast Ethernet
 One RJ-45 connector

 Audio

 HD Audio compliant (with Speaker/line-out & MIC-in) via

ALC888

 Supports multi-channel audio stream, 32-bit sample depth,

and sample rate up to 192KHz

 Lin-in/Line-out/MIC-in

 SDIO

 One SDIO port support SDIO1.1 specification.

 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.

Introduction

PICO820 Series All-In-One PICO ITX Board User’s Manual

4

1.2 Utilities Supported

 Chipset Driver
 Ethernet Driver
 Graphic Drivers
 Audio Drivers

Introduction

PICO820 Series All-In-One PICO ITX Board User’s Manual

5

CHAPTER 2

JUMPERS AND CONNECTORS

2.1 Board Dimensions and Fixing Holes

NOTE The height of Component Side is 18mm.

Jumpers and Connectors

Component Side

PICO820 Series All-In-One PICO ITX Board User’s Manual

6

Solder Side

NOTE The height of Solder Side is 9mm.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

7

2.2 Board Layout

Component Side

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

8

Solder Side

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

9

Jumper

Default Setting

Jumper Setting

JP1

Flat Panel Power Selection:

Optional or Default : 3.3V

Short 1-2

JP3

AUTO BUTTON Mode Selection
Optional or Default : OFF

Short 2-3

JP4

CompactFlash Voltage Selection
Optional or Default : 3.3V

Short 1-2

JP5

Clear CMOS Setting: Normal

Short 1-2

Description

Function

Jumper Setting

Flat Panel
Connector (CN5)
Voltage Selection

3.3V (Default)

5V

2.3 Jumper Settings

Proper jumper settings configure the PICO820 to meet your application
purpose. We are herewith listing a summary table of all jumpers and
default settings for onboard devices, respectively.

2.3.1 Flat Panel Connector Voltage Selection Jumper
(JP1)

The board supports +3.3V or +5V flat panel displays. Configure the
jumper JP1 to the appropriate voltage of the flat panel (CN5).

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

10

Description

Function

Jumper Setting

AUTO BUTTON
Mode Selection

ON

OFF
(Default)

Description

Function

Jumper Setting

CompactFlash™
Power Select

3.3V (Default)

5V

2.3.2 AUTO BUTTON Mode Selection Jumper (JP3)

The jumper selects the AUTO BUTTON Mode.

2.3.3 CompactFlash™ Power Selection Jumper (JP4)

This jumper is to select the voltage for CompactFlash™ interface.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

11

Description

Function

Jumper Setting

CMOS Clear

Normal
(Default)

Clear CMOS

2.3.4 CMOS Clear Jumpers (JP5)

You may need to use this jumper is to clear the CMOS memory if
incorrect settings in the Setup Utility.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

12

Connectors

Label

VGA Connector

CN1

DC Power Jack Connector

CN2

DC Power Connector(Optional)

CN3

LPC Interface Connector

CN4

LVDS Connector

CN5

Serial ATA Power Connector

CN6

Flat Panel Bezel Connector

CN7

DIO Port Connector

CN8

Inverter Connector

CN9

Thru Front I/O Connector 1

CN10

Thru Front I/O Connector 2

CN11

SMBUS Connector

CN12

CPLD JTAG Interface Connector

JP2

LAN Connector

LAN1

Serial ATA Connector

SATA1

DDRII SODIMM Connector

SCN1

Compact Flash Connector

SCN2

2.4 Connectors

Connectors connect the board with other parts of the system. Loose or
improper connection might cause problems. Make sure all connectors
are properly and firmly connected. Here is a summary table shows you
all connectors on the PICO820 Series.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

13

Pin

Signal

1

Red 2 Green

3

Blue

4

N.C 5 Ground (GND)

6

AnalogGround（AGND）

7

AnalogGround（AGND）

8

AnalogGround（AGND）

9

N.C

10

Ground (GND)

11

N.C

12

DDC DATA

13

Horizontal Sync

14

Vertical Sync

15

DDC CLK

1

10

11

15

5

6

2.4.1 VGA Connector (CN1)

CN1 is a standard 15-pin DB15 connector commonly for the CRT VGA

display.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

14

Pin

Signal

1

GND

2

GND

3

+5V

4

+5V

Pin

Signal

1

+5V 2 GND

Pin

Signal

Pin

Signal

9

8

7

6

5

4

3

2

1

1

LPC_PCLK

2

BUF_RST#

3

LPC_FRAME#

4

LPC_AD0

5

LPC_AD1

6

LPC_AD2

7

LPC_AD3

8

+3.3V

9

GND

10

GND

2.4.2 DC POWER JACK Connector (CN2)

The CN2 is a DC Power JACK connector for DC 5V input.

2.4.3 DC POWER Connector (CN3) (Optional)

The CN3 (co-lay with CN2) is a 3.96mm wafer DC Power connector
for DC 5V input.

2.4.4 LPC Interface Connector (CN4)

The CN4 is a LPC Interface Connector.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

15

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

N.C.

12

N.C.

13

N.C.

14

N.C.

15

GND

16

GND

17

N.C.

18

N.C.

19

N.C.

20

N.C.

21

GND

22

GND

23

Channel A D0-

24

N.C.

25

Channel A D0+

26

N.C.

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

2.4.5 LVDS Flat Panel Connector (CN5)

The LVDS connector on the PICO820 is a 40-pin connector. It is
strongly recommended to us the matching JST SHDR-40V-S-B
connector.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

16

Pin

Signal

1

+5V 2 GND

2.4.6 Serial ATA Power Connector (CN6)

The CN6 is a 2.5mm wafer connector for Serial ATA Power.

2.4.7 Flat Panel Bezel Connector (CN7)

 Power LED

This 3-pin connector denoted as Pin 1 and Pin 5 connects the
system power LED indicator to such a switch on the case. Pin 1 is
assigned as +, and Pin 5 as -. The Power LED lights up when the
system is powered ON.

 External Speaker and Internal Buzzer Connector

Pin 2, 4, 6 and 8 can be connected to the case-mounted speaker
unit or internal buzzer. While connecting the CPU card to an internal
buzzer, please short pins 2-4; while connecting to an external
speaker, you need to set pins 2-4 to Open and connect the speaker
cable to pin 8 (+) and pin 2 (-).

 ATX Power On/Off Button

This 2-pin connector denoted as Pin 9 and 10 connects the front
panel’s ATX power button to the CPU card, which allows users to
control ATX power supply to be power on/off.

 System Reset Switch

Pin 11 and 12 can be connected to the case-mounted reset switch
that reboots your computer instead of turning OFF the power switch.
It is a better way to reboot your system for a longer life of the
system’s power supply.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

17

Pin

Signal

Pin

Signal

9

8

7

6

5

4

3

2

1

1

Digital Input 0

2

Digital Input 1

3

Digital Input 2

4

Digital Input 3

5

GND

6

Digital Output 0

7

Digital Output 1

8

Digital Output 2

9

Digital Output 3

W83627HG­AW GPIO
PIN Number

128
(GP110)

127
(GP11)

126
(GP12)

125
(GP13)

GPIO

Bit 0

Bit 1

Bit 2

Bit 3

CN8

PIN 1

PIN 2

PIN 3

PIN 4

PIN Define

Digital
lnput 0

Digital
lnput 1

Digital
lnput 2

Digital
lnput 3

 HDD Activity LED

This connection is linked to hard drive activity LED on the control
panel. LED flashes when HDD is being accessed. Pin 13 and 14
connect the hard disk drive to the front panel HDD LED, Pin 13
assigned as -, and Pin 14 as +.

2.4.8 Digital I/O Connector (CN8)

The board is equipped an 8-channel digital I/O connector CN8 that
meets requirements for a system customary automation control. The
digital I/O can be configured to control cash drawers, sense warning
signals from an Uninterrupted Power System (UPS), or perform store
security control. The digital I/O is controlled via software programming.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

18

W83627HG­AW GPIO
PIN Number

124
(GP14)

123
(GP15)

122
(GP16)

121
(GP17)

GPIO

Bit 4

Bit 5

Bit 6

Bit 7

CN8

PIN 6

PIN 7

PIN 8

PIN 9

PIN Define

Digital
Output 0

Digital
Output 1

Digital
Output 2

Digital
Output 3

Pin

Signal

1

+5V 2 +5V 3 ENABLE +5V

4

ENABLE +3.3V

5

BKLTCTL

6

GND

7

GND

2.4.9 LVDS Backlight Connector (CN9)

The CN9 is DF13-7S-1.25C 7-pin connectors for inverter that we
strongly recommend you to use the matching DF13-7S-1.25C
connector.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

19

Pin

Signal

Pin

Signal

Pin

Signal

1

+5V SBY

2

+5V SBY

3

USB D0-

4

USB D1-

5

USB D0+

6

USB D1+

7

GND

8

GND

9

GND

10

GND

11

+5V SBY

12

+5V SBY

13

USB D2-

14

USB D3-

15

USB D2+

16

USB D3+

17

GND

18

GND

19

GND

20

GND

21

KB_VCC

22

K/B Data

23

K/B CLK

24

GND

25

KB_VCC

26

KB_VCC

27

M/S Data

28

M/S CLK

29

GND

30

N.C.

31

SDIO_VCC3

32

GND

33

SD_WP#

34

SD_D0

35

SD_CD#

36

SD_D1

37

SD_CMD#

38

SD_D2

39

SD_CLK

40

SD_D3

41

SD_LED

42

GND

43

+5V

44

SPDIF(Option)

Pin

Signal

Pin

Signal

Pin

Signal

1

DCD1

2

DSR1

3

RXD1

4

RTS1

5

TXD1

6

CTS1

7

DTR1

8

RI1 9 GND

10

N.C.

11

DCD2

12

DSR2

13

RXD2

14

RTS2

15

TXD2

16

CTS2

17

DTR2

18

RI2

19

GND

20

N.C.

21

MIC_IN

22

GND

23

LINE_IN_L

24

GND

25

LINE_IN_R

26

GND

27

AUDIO_OUT_L

28

GND

29

AUDIO_OUT_R

30

GND

2.4.10 Thru Front I/O Connector 1 (CN10)

2.4.11 Thru Front I/O Connector 2 (CN11)

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

20

Pin

Signal

1

CLOCK

2

DATA

3

GND

Pin

Signal

1

+3.3V SBY

2

GND

3

TCK

4

TDO

5

TDI

Pin

Signal

12345678

A B

1

MDI0+

2

MDI0-

3

MDI1+

4

MDI1-

5

MDI2+

6

MDI2-

7

MDI3+

8

MDI3-

A

Active LED (Yellow)

B

100 LAN LED (Green)/ 1000 LAN
LED (Orange)

2.4.12 SMBUS Connector (CN12)

Connector CN12 is for SMBUS interface support.

2.4.13 CPLD JTAG Interface Connector (JP2)

The JP2 is a 2.0mm Pin header connector for CPLD Interface
Connector.

2.4.14 Ethernet Connector (LAN1)

The RJ-45 connector is for Ethernet. To connect the board to a 100/10
Base-T hub, just plug one end of the cable into LAN1, and connect the
other end (phone jack) to a 1000/100/10-Base-T hub.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

21

Pin

Signal

1

GND

2

SATA_TX+

3

SATA_TX-

4

GND

5

SATA_RX-

6

SATA_RX+

7

GND

2.4.15 Serial ATA Power Connector (SATA1)

The SATA connector SATA1 is for high-speed SATA interface ports,
and IT can be connected to hard disk devices.

2.4.16 DDRII SODIMM Connector (SCN1)

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

22

Pin

Signal

Pin

Signal

1

GND

26

CD1-

2

Data 3

27

Data 11

3

Data 4

28

Data 12

4

Data 5

29

Data 13

5

Data 6

30

Data 14

6

Data 7

31

Data 15

7

CS0#

32

CS1#

8

Address 10

33

VS1#

9

ATASEL

34

IORD#

10

Address 9

35

IOWR#

11

Address 8

36

WE#

12

Address 7

37

INTR

13

VCC

38

VCC

14

Address 6

39

CSEL#

15

Address 5

40

VS2#

16

Address 4

41

RESET#

17

Address 3

42

IORDY#

18

Address 2

43

DMAREQ

19

Address 1

44

DMAACK-

20

Address 0

45

DASP#

21

Data 0

46

PDIAG#

22

Data 1

47

Data 8

23

Data 2

48

Data 9

2.4.17 CompactFlash™ Socket (SCN2)

The board is equipped with a CompactFlashTM disk type-II socket on
the solder side that supports the IDE interface CompactFlashTM disk

card with DMA mode supported. The socket is especially designed to
avoid any incorrect installation of the CompactFlashTM disk card.
When installing or removing the CompactFlashTM disk card, please
make sure that the system power is off. The CompactFlashTM disk card
is defaulted as the C: or D: disk drive in your PC system.

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

23

Pin

Signal

Pin

Signal

24

IOCS16#

49

Data 10

25

CD2#

50

GND

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

25

50

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

24

MEMO

Jumpers and Connectors

PICO820 Series All-In-One PICO ITX Board User’s Manual

25

CHAPTER 3

HARDWARE DESCRIPTION

3.1 Microprocessors

The PICO820 Series supports Intel
which make your system operated under Windows 2000/XP, and Linux
environment. The system performance depends on the microprocessor.
Make sure all correct settings are arranged for your installed
microprocessor to prevent the CPU from damages.

3.2 BIOS

The PICO820 Series uses Award Plug and Play BIOS with a single
8Mbit FWH Flash, DMI, Plug and Play.

3.3 System Memory

The PICO820 Series industrial CPU card supports one 200-pin
unbuffered DDR2 SODIMM socket for a maximum memory of 1GB
DDR2 SDRAMs. The memory module can come in sizes of 64MB,
128MB, 256MB, 512MB, 1GB and 2GB.
The Device density supports 512 Mb and 1024-Mb with the width of x16.

®

ATOM™ processor Z500 Series,

Hardware Description

PICO820 Series All-In-One PICO ITX Board User’s Manual

26

Address

Devices

000-01F

DMA controller #1

020-02D
024-025
028-029

02C-02D

Interrupt controller #1

02E-02F

Forwarded to LPC(LPC Super I/O 2)

030-031
034-035
038-039

03C-03D

Interrupt controller #2

040-043
050-053

Timer/Counter (8254)

04E-04F

Forwarded to LPC(LPC Super I/O 1)

060-06F

Forwarded to LPC(Microcontroller for
Keyboard Controller)

070-077

Real time clock, NMI

080-091

DMA page register

092

Processor I/F(Reset Generator)

093-09F

DMA page register

0A0-0BF

Interrupt controller #2

0C0-0DF

DMA controller #2

0F0

Processor I/F

0F8-0FF

Math processor

170-177

Forward to SATA(SATA Controller)

1F0-1F7

Forward to SATA(SATA Controller)

250-25F

HR I/O

300-31F

Prototype card

376

Forward to SATA(SATA Controller)

378-37F

Parallel Port (LPT)

380-38F

SDLC #2

3A0-3AF

SDLC #1

3.4 I/O Port Address Map

The Intel
ports. There are total 1KB port addresses available for assignment to
other devices via I/O expansion cards.

®

ATOM™ processor Z500 Series can communicate via I/O

Hardware Description

PICO820 Series All-In-One PICO ITX Board User’s Manual

27

Address

Devices

3B0-3BF

MDA video card

3C0-3CF

EGA card

3D0-3DF

CGA card

3F6

Forward to SATA (SATA Controller)

3F8-3FF

Serial port #1 (COM1)

3E8-3EF

Serial port #3 (COM3)

2F8-2FF

Serial port #2 (COM2)

2E8-2EF

Serial port #4 (COM4)

IRQ

Parity check error

IRQ0

System timer output

IRQ1

Keyboard

IRQ2

Interrupt rerouting from IRQ8 through IRQ15

IRQ3

Serial port #2

IRQ4

Serial port #1

IRQ5

PCI Device Share

IRQ7

—

IRQ8

Real time clock

IRQ9

ACPI Controller

IRQ10

—

IRQ11

—

IRQ12

PS/2 Mouse

IRQ13

Math coprocessor

IRQ14

Primary IDE channel

IRQ15

—

3.5 Interrupt Controller

The PICO820 Series is a 100% PC compatible control board. It
consists of 16 interrupt request lines, and four out of them can be
programmable. The mapping list of the 16 interrupt request lines is
shown as the following table.

Hardware Description

PICO820 Series All-In-One PICO ITX Board User’s Manual

28

MEMO

Hardware Description

PICO820 Series All-In-One PICO ITX Board User’s Manual

29

CHAPTER 4

PHOENIX-AWARD BIOS UTILITY

The Phoenix-Award BIOS provides users with a built-in Setup program
to modify basic system configuration. All configured parameters are
stored in a battery-backed-up RAM (CMOS RAM) to save the Setup
information whenever the power is turned off.

4.1 Entering Setup

There are two ways to enter the Setup program. You may either turn
ON the computer and press <Del> immediately, or press the <Del>
and/or <Ctrl>, <Alt>, and <Esc> keys simultaneously when the following
message appears at the bottom of the screen during POST (Power on
Self Test).

TO ENTER SETUP PRESS DEL KEY

If the message disappears before you respond and you still want to
enter Setup, please restart the system to try it again. Turning the
system power OFF and ON, pressing the “RESET” button on the
system case or simultaneously pressing <Ctrl>, <Alt>, and <Del> keys
can restart the system. If you do not press keys at the right time and the
system doesn’t boot, an error message will pop out to prompt you the
following information:

PRESS <F1> TO CONTINUE, <CTRL-ALT-ESC> OR <DEL> TO ENTER SETUP

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

30

Up arrow

Move cursor to the previous item

Down arrow

Move cursor to the next item

Left arrow

Move cursor to the item on the left hand

Right arrow

Move to the item in the right hand

Esc key

Main Menu -- Quit and delete changes into CMOS
Status Page Setup Menu and Option Page Setup
Menu -- Exit current page and return to Main Menu

PgUp/“+” key

Increase the numeric value or make changes

PgDn/““ key

Decrease the numeric value or make changes

F1 key

General help, only for Status Page Setup Menu and
Option Page Setup Menu

(Shift) F2 key

Change color from total 16 colors. F2 to select color
forward, (Shift) F2 to select color backward

F3 key

Reserved

F4 key

Reserved

F5 key

Restore the previous CMOS value from CMOS, only
for Option Page Setup Menu

F6 key

Load the default CMOS value from BIOS default
table, only for Option Page Setup Menu

F7 key

Load the Setup default, only for Option Page Setup
Menu

F8 key

Reserved

F9 key

Reserved

F10 key

Save all the CMOS changes, only for Main Menu

4.2 Control Keys

4.3 Getting Help

 Main Menu

The online description of the highlighted setup function is displayed
at the bottom of the screen.

 Status Page Setup Menu/Option Page Setup Menu

Press <F1> to pop out a small Help window that provides the
description of using appropriate keys and possible selections for
highlighted items. Press <F1> or <Esc> to exit the Help Window.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

31

4.4 The Main Menu

Once you enter the Award BIOS CMOS Setup Utility, the Main Menu
appears on the screen. In the Main Menu, there are several Setup
functions and a couple of Exit options for your selection. Use arrow
keys to select the Setup Page you intend to configure then press
<Enter> to accept or enter its sub-menu.

NOTE If your computer can not boot after making and saving

system changes with Setup, the Award BIOS will reset your
system to the CMOS default settings via its built-in override
feature.

It is strongly recommended that you should avoid changing the
chipset’s defaults. Both Award and your system manufacturer have
carefully set up these defaults that provide the best performance and
reliability.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

32

day

It is determined by the BIOS and read only, from Sunday
to Saturday.

date

It can be keyed with the numerical/ function key, from 1
to 31.

month

It is from January to December.

year

It shows the current year of BIOS.

4.5 Standard CMOS Setup Menu

The Standard CMOS Setup Menu displays basic information about your
system. Use arrow keys to highlight each item, and use <PgUp> or
<PgDn> key to select the value you want in each item.

 Date

The date format is <day>, <date> <month> <year>. Press <F3> to
show the calendar.

 Time

This item shows current time of your system with the format <hour>
<minute> <second>. The time is calculated based on the 24-hour
military-time clock. For example, 1 p.m. is 13:00:00.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

33

CYLS.

number of cylinders

LANDZONE

landing zone

HEADS

number of heads

SECTORS

number of sectors

PRECOMP

write precom

MODE

HDD access mode

No errors

The system booting will halt on any errors detected.
(default)

All errors

Whenever BIOS detects a non-fatal error, the
system will stop and you will be prompted.

All, But
Keyboard

The system booting will not stop for a keyboard
error; it will stop for other errors.

 IDE Primary Master/Primary Slave

These items identify the types of each IDE channel installed in the
computer. There are 45 predefined types (Type 1 to Type 45) and 2
user’s definable types (Type User) for Enhanced IDE BIOS. Press
<PgUp>/<+> or <PgDn>/<> to select a numbered hard disk type,
or directly type the number and press <Enter>. Please be noted
your drive’s specifications must match the drive table. The hard
disk will not work properly if you enter improper information. If your
hard disk drive type does not match or is not listed, you can use
Type User to manually define your own drive type.
If selecting Type User, you will be asked to enter related
information in the following items. Directly key in the information
and press <Enter>. This information should be provided in the
documentation from your hard disk vendor or the system
manufacturer.
If the HDD interface controller supports ESDI, select “Type 1”.
If the HDD interface controller supports SCSI, select “None”.
If the HDD interface controller supports CD-ROM, select “None”.

If there is no hard disk drive installed, select NONE and press
<Enter>.

 Video

Select the display adapter type for your system.

 Halt On

This item determines whether the system will halt or not, if an error
is detected while powering up.

Press <Esc> to return to the Main Menu page.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

34

4.6 Advanced BIOS Features

This section allows you to configure and improve your system, to set up
some system features according to your preference.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

35

 CPU Feature

Scroll to this item and press <Enter> to view the CPU Feature sub
menu.

 Hard Disk Boot Priority

Scroll to this item and press <Enter> to view the sub menu to decide
the disk boot priority.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

36

Enabled

Enable Quick POST

Disabled

Normal POST

System

If a wrong password is entered at the prompt, the system
will not boot, the access to Setup will be denied, either.

Setup

If a wrong password is entered at the prompt, the system
will boot, but the access to Setup will be denied.

 Quick Power On Self Test

This option speeds up Power on Self Test (POST) after you turn on
the system power. If set as Enabled, BIOS will shorten or skip
some check items during POST. The default setting is “Enabled”.

 First/Second/Third Boot Device

These items let you select the 1st, 2nd, and 3rd devices that the
system will search for during its boot-up sequence. There is a wide
range of options for your selection.

 Boot Other Device

This item allows the user to enable/disable the boot device not
listed on the First/Second/Third boot devices option above. The
default setting is “Enabled”.

 Boot Up NumLock Status

Set the the Num Lock status when the system is powered on.
The default value is “On”.

 Security Option

This item allows you to limit access to the system and Setup, or just
to Setup. The default value is “Setup”.

NOTE To disable the security, select PASSWORD

 APIC Mode

Use this item to enable or disable APIC (Advanced Programmable
Interrupt Controller) mode that provides symmetric multi­processing (SMP) for systems.

SETTING at Main Menu and then you will be
asked to enter a password. Do not type anything,
just press <Enter> and it will disable the security.
Once the security is disabled, the system will boot
and you can enter Setup freely.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

37

 MPS Version Control For OS

This item specifies the version of the Multiprocessor Specification
(MPS). Version 1.4 has extended configuration tables to improve
support for multiple PCI bus configurations and provide future
expandability.

Press <Esc> to return to the Main Menu page.

4.7 Advanced Chipset Features

This section contains completely optimized chipset’s features on the
board that you are strongly recommended to leave all items on this
page at their default values unless you are very familiar with the
technical specifications of your system hardware.

 DRAM Timing Selectable

Use this item to increase the timing of the memory. This is related
to the cooling of memory.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

38

 System BIOS Cacheable

Selecting Enabled allows caching of the system BIOS ROM at
F0000h-FFFFFh, resulting in better system performance. However,
if any program writes to this memory area, a system error may
result. The default value is “Disabled”.

 Video BIOS Cacheable

This item allows you to change the Video BIOS location from ROM
to RAM. Video Shadow will increase the video speed.

*** VGA Setting ***

 On-Chip Frame Buffer Size

Use this item to set the VGA frame buffer size.

 Boot Type

This item is to select Display Device that the screen will be shown.

 Panel Scaling

This item shows the setting of panel scaling and operates the
scaling function that the panel output can fit the screen resolution
connected to the output port.

Press <Esc> to return to the Main Menu page.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

39

4.8 Integrated Peripherals

This section allows you to configure your OnChip IDE Device, SuperIO
Device and Onboard Device.

 OnChip IDE Device

Scroll to this item and press <Enter> to view the sub menu OnChip
IDE Device.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

40

 IDE HDD Block Mode

Block mode is also called block transfer, multiple commands,
or multiple sectors read/write. If your IDE hard drive supports
block mode (most new drives do), select Enabled for automatic

detection of the optimal number of block read/writes per sector the
drive can support.

Press <Esc> to return to the Integrated Peripherals page.

 Onboard Device

Scroll to this item and press <Enter> to view the sub menu Onboard
Device.

 Intel HD Audio Controller

Use this item to enable an Intel HD Audio controller.

Press <Esc> to return to the Integrated Peripherals page.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

41

 USB Device Setting

Scroll to this item and press <Enter> to view the sub menu USB
Device Setting.

 Onboard Serial Port 1/2

Select an address and corresponding interrupt for the serial port.
There are several options for your selection.

 Onboard Lan Boot ROM

Use this item to enable or disable the Boot ROM function of the
onboard LAN chip when the system boots up.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

42

Max Saving

It is maximum power savings, only available for SL
CPUs. The inactivity period is 1 minute in each mode.

User Define

It sets each mode. Select time-out periods in the PM
Timers section.

Min Saving

It is minimum power savings. The inactivity period is 1
hour in each mode (except the hard drive).

Disabled

Default value

4.9 Power Management Setup

The Power Management Setup allows you to save energy of your
system effectively. It will shut down the hard disk and turn OFF video
display after a period of inactivity.

 ACPI Function

This item allows you to enable/disable the Advanced Configuration
and Power Management (ACPI). The function is always “Enabled”.

 Power Management

This option allows you to select the type (or degree) of power saving for
Doze, Standby, and Suspend modes. The table below describes each
power management mode:

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

43

V/H
SYNC+Blank

Turns OFF vertical and horizontal
synchronization ports and writes blanks to the
video buffer

DPMS

Select this option if your monitor supports the
Display Power Management Signaling (DPMS)
standard of the Video Electronics Standards
Association (VESA). Use the software supplied
for your video subsystem to select video power
management values.

Blank Screen

System only writes blanks to the video buffer.

Disabled

System will never enter SUSPEND mode

1/2/4/6/8/10/
20/30/40
Min/1 Hr

Defines the continuous idle time before the system
entering SUSPEND mode.
If any item defined in (J) is enabled & active,
SUSPEND timer will be reloaded

 Video Off Method

This setting determines the manner in which the monitor is blanked.

 Video Off In Suspend

This item defines if the video is powered down when the system is
put into suspend mode.

 Suspend Type

If this item is set to the default Stop Grant, the CPU will go into Idle
Mode during power saving mode.

 Suspend Mode

After the selected period of system inactivity (1 minute to 1 hour),
all devices except the CPU shut off. The default value is “Disabled”.

 HDD Power Down

If HDD activity is not detected for the length of time specified in this
field, the hard disk drive will be powered down while all other
devices remain active.

 Soft-Off by PWR-BTTN

This option only works with systems using an ATX power supply. It
also allows the user to define which type of soft power OFF
sequence the system will follow. The default value is “Instant-Off”.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

44

Instant-Off

This option follows the conventional manner systems
perform when power is turned OFF. Instant-Off is a soft
power OFF sequence requiring only the switching of
the power supply button to OFF

Delay 4 Sec.

Upon turning OFF system from the power switch, this
option will delay the complete system power OFF
sequence by approximately 4 seconds. Within this
delay period, system will temporarily enter into
Suspend Mode enabling you to restart the system at
once.

Press <Esc> to return to the Main Menu page.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

45

4.10 PnP/PCI Configuration Setup

This section describes the configuration of PCI (Personal Computer
Interconnect) bus system, which allows I/O devices to operate at
speeds close to the CPU speed while communicating with other
important components. This section covers very technical items that
only experienced users could change default settings.

 Reset Configuration Data

Normally, you leave this item Disabled. Select Enabled to reset
Extended System Configuration Data (ESCD) when you exit Setup
or if installing a new add-on cause the system reconfiguration a
serious conflict that the operating system can not boot. Options:
Enabled, Disabled.

 Resources Controlled By

The Award Plug and Play BIOS can automatically configure all boot
and Plug and Play-compatible devices. If you select Auto, all
interrupt request (IRQ), DMA assignment, and Used DMA fields
disappear, as the BIOS automatically assigns them. The default
value is “Manual”.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

46

 IRQ Resources

When resources are controlled manually, assign each system
interrupt to one of the following types in accordance with the type of
devices using the interrupt:

1. Legacy ISA Devices compliant with the original PC AT bus
specification, requiring a specific interrupt (such as IRQ4 for serial port

1).

2. PCI/ISA PnP Devices compliant with the Plug and Play standard,

whether designed for PCI or ISA bus architecture.

The default value is “PCI/ISA PnP”.

 PCI/VGA Palette Snoop

Some non-standard VGA display cards may not show colors
properly. This item allows you to set whether MPEG ISA/VESA
VGA Cards can work with PCI/VGA or not. When enabled, a
PCI/VGA can work with a MPEG ISA/VESA VGA card; when
disabled, a PCI/VGA cannot work with a MPEG ISA/VESA Card.

** PCI Express relative items **

 Maximum Payload Size

When using DDR SDRAM and Buffer size selection, another
consideration in designing a payload memory is the size of the
buffer for data storage. Maximum Payload Size defines the
maximum TLP (Transaction Layer Packet) data payload size for the
device.

Press <Esc> to return to the Main Menu page.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

47

4.11 PC Health Status

This section supports hardware monitoring that lets you monitor those
parameters for critical voltages, temperatures and fan speed of the
board.

 System Component Characteristics

These items provide you with information about the system’s
current operating status. You can’t change these items.

1. Current CPU Temperature

2. Current MCH Temperature

3. Current System Temperature

4. VCORE/VIT/VBAT/5VSB

Press <Esc> to return to the Main Menu page.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

48

4.12 Load Optimized Defaults

This option allows you to load your system configuration with default
values. These default settings are optimized to enable high
performance features.

To load CMOS SRAM with SETUP default values, please enter “Y”. If
not, please enter “N”.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

49

4.13 Set Supervisor/User Password

You can set a supervisor or user password, or both of them. The
differences between them are:

1. Supervisor password: You can enter and change the options on

the setup menu.

2. User password: You can just enter, but have no right to change

the options on the setup menu.

When you select this function, the following message will appear at the
center of the screen to assist you in creating a password.

ENTER PASSWORD

Type a maximum eight-character password, and press <Enter>. This
typed password will clear previously entered password from the CMOS
memory. You will be asked to confirm this password. Type this
password again and press <Enter>. You may also press <Esc> to abort
this selection and not enter a password.

To disable the password, just press <Enter> when you are prompted to
enter a password. A message will confirm the password is getting
disabled. Once the password is disabled, the system will boot and you
can enter Setup freely.

PASSWORD DISABLED

When a password is enabled, you have to type it every time you enter
the Setup. It prevents any unauthorized persons from changing your
system configuration.

Additionally, when a password is enabled, you can also require the
BIOS to request a password every time the system reboots. This would
prevent unauthorized use of your computer.

You decide when the password is required for the BIOS Features Setup

Menu and its Security option. If the Security option is set to “System”,

the password is required during booting up and entry into the Setup; if it
is set as “Setup”, a prompt will only appear before entering the Setup.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

50

4.14 Save & Exit Setup

This section allows you to determine whether or not to accept your
modifications. Type “Y” to quit the setup utility and save all changes into
the CMOS memory. Type “N” to bring you back to the Setup utility.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

51

4.15 Exit Without Saving

Select this option to exit the Setup utility without saving changes you
have made in this session. Type “Y”, and it will quit the Setup utility
without saving your modifications. Type “N” to return to the Setup utility.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

52

MEMO

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

53

CHAPTER 5

INSTALLATION OF DRIVERS

The device drivers are located on the Product Information CD-ROM
that comes with the PICO820 Series package. The auto-run function of
drivers will guide you to install the utilities and device drivers under a
Windows system. You can follow the onscreen instructions to install
these devices:

 Chipset
 VGA
 LAN
 Audio

5.1 Installing Chipset Driver

1. Run the SETUP.EXE program from the driver directory in your
driver CD. Click “Next” to next step.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

54

2. An Intel® License Agreement appears to show you the

important information. Click “Yes” to next step.

3. Please wait while running the following setup operations.

(3-1)

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

55

(3-2)

4. Click “Finish” to complete the setup process.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

56

5. You will be asked to reboot your computer when the

installation is completed. Please click “Yes, I want to restart
my computer now” if you don’t need to install any other drivers.
Otherwise, please click “No, I will restart my computer later”,
and go on next step.

5.2 Installing VGA Driver

1. Run the SETUP.EXE program from the driver directory in your
driver CD. Click “Next” to next step.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

57

2. An Intel® License Agreement appears to show you the

important information. Click “Yes” to next step.

3. The message of Readme File Information appears to show

you the system requirements and installation information.
Please click “Next”.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

58

4. Please wait while running the following setup operations.

5. When this message appears, please click “Next”.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

59

6. You will be asked to reboot your computer when the installation is
completed. Please click “Yes, I want to restart my computer now” if
you don’t need to install any other drivers. Otherwise, please click
“No, I will restart my computer later”, and click “Finish” to complete
the installation.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

60

5.3 Installing LAN Driver

1. Run the InstallShield Wizard for Ethernet from the driver
directory in your driver CD. Click “Next” to next step.

2. Click “Install” to start the installation.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

61

3. Please wait while running the following installation operation.

4. Click “Finish” to complete the installation.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

62

5.4 Installing Audio Driver

1. Run the InstallShield Wizard for Audio from the driver directory

in your driver CD. Click “Next” to next step.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

63

2. Please wait while running the following installation operation.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

64

3. You will be asked to reboot your computer when the installation is
completed. Please click “Yes, I want to restart my computer now” if
you don’t need to install any other drivers. Otherwise, please click
“No, I will restart my computer later”, and click “Finish” to complete
the installation.

Installation of Drivers

PICO820 Series All-In-One PICO ITX Board User’s Manual

65

APPENDIX A

WATCHDOG TIMER

Watchdog Timer Setting
(From Super I/O W83627HG-AW)

After the system stops working for a while, it can be auto-reset by the
Watchdog Timer. The integrated Watchdog Timer can be set up in the
system reset mode by program.

Using the Watchdog Function

Start

Un-Lock WDT:
O 2E 87 ; Un-lock super I/O

O 2E 87 ; Un-lock super I/O

Select Logic device:
O 2E 07
O 2F 08

Activate WDT:
O 2E 30
O 2F 01

Set Second or Minute :
O 2E F5
O 2F N N=00 or 08 (See below table)

Set base timer :
O 2E F6
O 2F M=00,01,02,…FF(Hex) ,Value=0 to 255


; IF to disable WDT:
O 2E 30

O 2F 00 ; Can be disable at any time

Watchdog Timer

PICO820 Series All-In-One PICO ITX Board User’s Manual

66

2E, 87

2E, 87

2E, 07

2F, 08

Logical Device 8

2E, 30

Activate

2F, 01

2E, F5

2F, N

Set Minute or Second
N=08 (Min),00(Sec)

2E, F6

2F, M

Set Value
M = 00 ~ FF

 Timeout Value Range

 1 to 255
 Minute / Second

 Program Sample

Watchdog Timer can be set to system reset after 5-second timeout.

Watchdog Timer

PICO820 Series All-In-One PICO ITX Board User’s Manual

67

O 2E 87

Un-Lock Super I/O

O 2E 87

Un-Lock Super I/O

O 2E 07

Select Logic device

O 2F 07

O 2E F1

Read Data

I 2F XX

XX is input Data;if no input source,the
value is 0F

Q

Quit debug

O 2E 87

Un-Lock Super I/O

O 2E 87

Un-Lock Super I/O

O 2E 07

Select Logic device

O 2F 07

O 2E F1

Output Data

I 2F XX

XF=0F,1F,2F,…FF (X is Output Data)

Q

Quit debug

APPENDIX B

Digital I/O Software Programming

 GPI program sample:

DIGITAL I/O

 GPO program sample:

Digital I/O

PICO820 Series All-In-One PICO ITX Board User’s Manual

68

MEMO

Digital I/O