PICO841/843 ® Intel AtomTM E3845/E3827 Intel® Celeron® J1900/N2807 Processors 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 2015 Axiomtek Co., Ltd. All Rights Reserved November 2015, 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 a trademark of American Megatrend Inc. IBM, PC/AT, PS/2, VGA are trademarks of International Business Machines Corporation. ® ® Intel and Celeron 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 ............................................................................................... 2 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 ....................................................................................... 7 2.3 Assembly Drawing .............................................................................. 9 2.4 Jumper Settings ................................................................................ 12 2.4.1 2.4.2 2.4.3 2.4.4 2.5 LVDS Voltage Selection (JP1 and JP2) .................................................... 13 Auto Power On (JP4) ................................................................................ 13 LVDS Brightness Control Mode Setting (JP5) .......................................... 13 Restore BIOS Optimal Defaults (JP6) ....................................................... 13 Connectors ........................................................................................ 14 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 Board to Board Connectors (CN1 and CN2) ............................................. 15 Fan Power Connector (CN3) ..................................................................... 16 SMBus Connector (CN4) .......................................................................... 16 Power LED Header (CN6) ......................................................................... 16 External Speaker and Internal Buzzer Header (CN7) ............................... 16 LVDS Connector (CN8) ............................................................................. 17 SATA Power Connector (CN9) .................................................................. 19 Inverter Connector (CN10) ........................................................................ 19 DC Power Connector (CN11) .................................................................... 19 VGA Connector (CN12) ............................................................................. 20 Ethernet Connector (LAN1) ....................................................................... 20 SATA Connector (SATA1) .......................................................................... 21 CMOS Battery Connector (BAT1) ............................................................. 21 Full-size PCI-Express Mini Card and mSATA Connector (SCN1) ............. 22 SIM Card Slot (SCN2) ............................................................................... 23 Half-size PCI-Express Mini Card Connector (SCN3) ................................ 23 AX93283 I/O Board ................................ 25 3.1 AX93283 Specifications .................................................................... 25 3.2 AX93283 Dimensions and Fixing Holes .......................................... 25 iv 3.3 AX93283 Board Layout ..................................................................... 26 3.4 AX93283 Jumper Settings ................................................................ 27 3.4.1 3.5 COM1 Data/Power Selection (JP1 and JP2) ............................................ 27 AX93283 Connectors, Switches and LED ....................................... 28 3.5.1 3.5.2 3.5.3 3.5.4 3.5.5 3.5.6 3.5.7 3.5.8 Chapter 4 System Reset Switch (CN1) ...................................................................... 28 Audio Jack (CN2) ...................................................................................... 28 COM1 Connector (CN3) ............................................................................ 29 COM2 Connector (CN4) ............................................................................ 29 System Power Switch (CN5) ..................................................................... 29 Board to Board Connectors (CN9 and CN10) ........................................... 30 USB Connectors (USB1 and USB2) ......................................................... 31 Power and HDD LED Indicator (D1) ......................................................... 31 AX93267 I/O Board ................................ 33 4.1 AX93267 Specifications .................................................................... 33 4.2 AX93267 Dimensions and Fixing Holes .......................................... 34 4.3 AX93267 Board Layout ..................................................................... 35 4.4 AX93267 Connectors ........................................................................ 36 4.4.1 4.4.2 4.4.3 4.4.4 4.4.5 4.4.6 Chapter 5 DC Power Jack (CN1) ............................................................................... 36 DC Power Connector (CN2) ...................................................................... 36 VGA Connector (CN3) ............................................................................... 37 D-Sub VGA Connector (CN4) ................................................................... 37 Ethernet Connector (CN5) ........................................................................ 38 RJ-45 Ethernet Port (CN6) ........................................................................ 38 Hardware Description ........................... 39 5.1 Microprocessors ............................................................................... 39 5.2 BIOS ................................................................................................... 39 5.3 System Memory ................................................................................. 39 5.4 I/O Port Address Map ........................................................................ 40 5.5 Interrupt Controller (IRQ) Map ......................................................... 41 5.6 Memory Map ...................................................................................... 43 Chapter 6 AMI BIOS Setup Utility .......................... 45 6.1 Starting ............................................................................................... 45 6.2 Navigation Keys ................................................................................ 45 6.3 Main Menu.......................................................................................... 46 6.4 Advanced Menu ................................................................................. 47 6.5 Chipset Menu ..................................................................................... 61 6.6 Security Menu .................................................................................... 65 v 6.7 Boot Menu.......................................................................................... 66 6.8 Save & Exit Menu .............................................................................. 67 Appendix A Watchdog Timer .................................... 69 A.1 About Watchdog Timer ..................................................................... 69 A.2 How to Use Watchdog Timer ............................................................ 69 A.3 Sample Program ................................................................................ 70 Appendix B Window® 7 Installation Guide ............... 73 Appendix C BIOS Flash Utility .................................. 75 vi PICO841/843 Pico-ITX Board Chapter 1 Introduction ® TM The PICO841 is a Pico-ITX board with Intel Atom E3845/E3827 processors. Meanwhile ® ® PICO843, a Pico-ITX board, supports Intel Celeron J1900/N2807 processors. Both of them deliver outstanding system performance through high-bandwidth interfaces, multiple I/O functions for interactive applications and various embedded computing solutions. The PICO841/843 have one 204-pin unbuffered SO-DIMM socket for DDR3L 1333/1066MHz memory, with maximum memory capacity up to 8GB. It also features one Gigabit/Fast Ethernet, one SATA 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. Moreover, it has one full-size PCI-Express Mini Card and one half-size PCI-Express Mini Card which provide good expansions for network connecting. Additionally, it provides you with unique embedded features, such as two serial ports (RS-232/422/485) 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. Introduction 1 PICO841/843 Pico-ITX Board 1.1 Features ® 1.2 Specifications CPU TM PICO841 - Intel Atom quad core E3845 (1.91GHz), and dual core E3827 (1.75GHz) ® ® PICO843 - Intel Celeron quad core J1900 (2GHz) and dual core N2807 (1.58GHz) 1 DDR3L SO-DIMM supports up to 8GB memory capacity 4 USB 2.0 ports 2 COM ports 1 full-size PCI-Express Mini Card 1 half-size PCI-Express Mini Card +12V only DC-in supported PICO841 ® TM - Intel Atom quad core E3845 1.91GHz. ® TM - Intel Atom dual core E3827 1.75GHz. PICO843 ® ® - Intel Celeron quad core J1900 2GHz. ® ® - Intel Celeron dual core N2807 1.58GHz. Thermal Solution Fanless but with reserved fan connector. Operating Temperature -20°C~70°C. BIOS American Megatrends Inc. UEFI (Unified Extensible Firmware Interface) BIOS. 16Mbit SPI Flash, DMI, Plug and Play. PXE Ethernet Boot ROM. System Memory One 204-pin unbuffered DDR3L SO-DIMM socket. Maximum up to 8GB DDR3L 1333/1066MHz memory. Onboard Multi I/O Controller: Fintek F81803U Serial Ports: Two ports for RS-232/422/485. Serial ATA One SATA-300 connector. mSATA supported. Expansion One full-size PCI-Express Mini Card socket complies with PCI-Express Mini Card Spec. V1.2. One half-size PCI-Express Mini Card socket complies with PCI-Express Mini Card Spec. V1.2. USB Interface Four USB ports with fuse protection and comply with USB Spec. Rev. 2.0 in pin headers. 2 Introduction PICO841/843 Pico-ITX Board Display One 16-pin VGA wafer connector. One 2x20-pin connector for 18-bit/24-bit dual channel LVDS and one 8-pin wafer connector for inverter control. LVDS resolution is up to 1920x1200 in 24-bit dual channels. Trusted Platform Module (TPM) Controller: ST ST33TPM12LPC via LPC bus interface. Complies with TPM1.2 main and PC client specification. Watchdog Timer 1~255 seconds or minutes; up to 255 levels. Ethernet One 16-pin wafer connector. ® One port with Intel i211AT supporting 1000/100/10Mbps Gigabit/Fast Ethernet with Wake-on-LAN and PXE Boot ROM. Audio HD audio compliant with Realtek ALC662. MIC-in and line-out in pin headers. Power Input One 1x4-pin wafer connector. +12V only DC-in. AT auto power on function supported. Power Management ACPI (Advanced Configuration and Power Interface). Form Factor Pico-ITX form factor. All specifications and images are subject to change without notice. Note 1.3 Utilities Supported Chipset and graphics driver Ethernet driver Audio driver XHCI driver Trusted Execution Engine Sideband Fabric Device Introduction 3 PICO841/843 Pico-ITX Board This page is intentionally left blank. 4 Introduction PICO841/843 Pico-ITX Board Chapter 2 Board and Pin Assignments 2.1 Board Dimensions and Fixing Holes Top View Board and Pin Assignments 5 PICO841/843 Pico-ITX Board Bottom View Side View 6 Board and Pin Assignments PICO841/843 Pico-ITX Board 2.2 Board Layout Top View Board and Pin Assignments 7 PICO841/843 Pico-ITX Board Bottom View 8 Board and Pin Assignments PICO841/843 Pico-ITX Board 2.3 Assembly Drawing Heatsink for PICO841/843 (see image below): First of all, use the following four screws to secure heatsink on heatspreader. x4 Board and Pin Assignments 9 PICO841/843 Pico-ITX Board For thermal dissipation, a heatspreader enables the PICO841/843’s components to dissipate heat efficiently. Images below illustrate how to install the heatspreader. Installing Heatspreader The PICO841/843 has four assembly holes for installing heatspreader plate. Align and firmly secure the heatspreader plate to the PICO841/843. Be careful not to over-tighten the screws. x4 10 x4 x4 (8mm) Board and Pin Assignments PICO841/843 Pico-ITX Board Installing Heatspreader and I/O Board Gently insert I/O board into CN1 and CN2. Align and use the four screws to firmly secure the heatspreader plate and I/O board to the PICO841/843. Be careful not to over-tighten the screws. See chapter 3 and chapter 4 for more details of AX93283 and AX93267 I/O boards. x4 x2 (7mm) Board and Pin Assignments x2 x2 x4 (8mm) x2 11 PICO841/843 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 PICO841/843 to meet your application purpose. Below you can find a summary table of all jumpers and onboard default settings. Once the default jumper needs to be changed, please do it under power-off condition. Note Jumper JP1 JP2 JP4 JP5 JP6 12 Description LVDS +12V Voltage Selection Default: None LVDS +3.3V/+5V Voltage Selection Default: +3.3V Auto Power On Default: Disable LVDS Brightness Control Mode Setting Default: PWM Mode Restore BIOS Optimal Defaults Default: Normal Operation Setting None 1-2 Close 1-2 Close 1-2 Close 1-2 Close Board and Pin Assignments PICO841/843 Pico-ITX Board 2.4.1 LVDS Voltage Selection (JP1 and JP2) The board supports voltage selection for flat panel displays. Use these jumpers to set LVDS connector (CN8) pin 1~6 VCCM to +3.3V, +5V or +12V. To prevent hardware damage, before connecting please make sure that input voltage of flat panel is correct. Function JP1 Setting +12V level N/A Close Open Function JP2 Setting +3.3V level (Default) +5V level 1-2 close 2-3 close 2.4.2 JP1 JP2 Auto Power On (JP4) If this jumper is enabled for power input, the system will be automatically power on without pressing soft power button. If this jumper is disabled for 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 1-2 close 2-3 close 2.4.3 LVDS Brightness Control Mode Setting (JP5) This jumper enables you to select PWM or voltage control mode for inverter connector (CN10). These two control modes are for adjusting the brightness of LVDS panel. Function Setting PWM mode (Default) Voltage mode 1-2 close 3-4 close 2.4.4 Restore BIOS Optimal Defaults (JP6) 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. Function Setting Normal (Default) 1-2 close Restore BIOS optimal defaults 2-3 close Board and Pin Assignments 13 PICO841/843 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 20-pin Board to Board Connector CN2 40-pin Board to Board Connector CN3 Fan Power Connector CN4 SMBus Connector CN6 Power LED Header CN7 External Speaker and Internal Buzzer Header CN8 LVDS Connector CN9 SATA Power Connector CN10 Inverter Connector CN11 DC Power Connector CN12 VGA Connector LAN1 Ethernet Port SATA1 SATA Connector BAT1 CMOS Battery Connector SCN1 Full-size PCI-Express Mini Card and mSATA Connector SCN2 SIM Card Slot SCN3 Half-size PCI-Express Mini Card Connector SSODIMM1 DDR3L SO-DIMM Socket 14 Board and Pin Assignments PICO841/843 Pico-ITX Board 2.5.1 Board to Board Connectors (CN1 and CN2) The pin assignments of CN1 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 19 1 20 2 The pin assignments of CN2 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 +12V +12V Ni 39 1 40 2 ® Note During Windows 7 installation, the HSIC USB (USB port 2 and 3) can not be used. Device driver must be installed in advance in order for the HSIC ® USB to work properly in Windows 7. It is suggested to insert AX93283 I/O board into CN1 and CN2 (see chapter 3 for details of AX93283). Note Board and Pin Assignments 15 PICO841/843 Pico-ITX Board 2.5.2 Fan Power Connector (CN3) This is a JST B2B-ZH-K-S 1.5mm pitch wafer connector for fan power interface. Pin Signal 1 2 +5V GND 2.5.3 2 1 SMBus Connector (CN4) 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 2.5.4 Power LED Header (CN6) This header is for power LED interface. Pin Signal 1 2 +5V GND 2.5.5 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(-). 16 Pin Signal 1 2 3 EXT SPK+ EXT SPKBuzzer 1 3 Board and Pin Assignments PICO841/843 Pico-ITX Board 2.5.6 LVDS Connector (CN8) This board has a 2x20-pin connector for LVDS LCD interface. It is strongly recommended to use the matching JST SHDR-40VS-B connector for LVDS interface. Pin 1~6 VCCM can be set to +3.3V, +5V or +12V by setting JP2 or JP1 (see section 2.4.1). 18-bit single channel 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 17 PICO841/843 Pico-ITX Board 24-bit single channel 18-bit dual 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 18 Board and Pin Assignments PICO841/843 Pico-ITX Board 2.5.7 SATA Power Connector (CN9) The CN9 is JST B4B-PH-K-S 4-pin 2.0mm pitch wafer connector for SATA power interface. Pin Signal 1 2 3 4 +12V GND GND +5V 2.5.8 Inverter Connector (CN10) This is a Hirose 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 VBL1 (+12V level) VBL1 (+12V level) VBL2 (+5V level) VBL_ENABLE GND GND GND VBL Brightness Control 2.5.9 DC Power Connector (CN11) This is a JST B4B-XH 4-pin 2.5mm pitch wafer connector for DC +12V input. It is suggested to connect this CN11 to AX93267 I/O board’s CN2. Pin Signal 1 2 3 4 +12V +12V GND GND Board and Pin Assignments 19 PICO841/843 Pico-ITX Board 2.5.10 VGA Connector (CN12) This is a JST BM16B-SRSS-TB 16-pin wafer connector for VGA interface. Gently connect this CN12 to AX93267 I/O board’s CN3. Pin Signal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RSVD RED GND GREEN GND BLUE GND VCC DDC_DATA GND GND HSYNC GND VSYNC DDC_CLK GND 2.5.11 Ethernet Connector (LAN1) This is a JST BM16B-SRSS-TB 16-pin wafer connector for Ethernet interface. Gently connect this LAN1 to AX93267 I/O board’s CN5. 20 Pin Signal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1000 LAN LED 100 LAN LED GND MDI3MDI3+ MDI1MDI2MDI2+ MDI1+ MDI0MDI0+ GND LAN_VDD33 LAN_LINK_ACT GND GND Board and Pin Assignments PICO841/843 Pico-ITX Board 2.5.12 SATA Connector (SATA1) This Serial Advanced Technology Attachment (Serial ATA or SATA) connector is for high-speed SATA interface. It is a computer bus interface for connecting to devices such as hard disk drives. Pin Signal 1 2 3 4 5 6 7 GND TXP TXN GND RXN RXP GND 2.5.13 1 1 7 1 CMOS Battery Connector (BAT1) This connector is for CMOS battery interface. Pin Signal 1 2 +3.3V GND Board and Pin Assignments 21 PICO841/843 Pico-ITX Board 2.5.14 (SCN1) Full-size PCI-Express Mini Card and mSATA Connector This is a full-size PCI-Express Mini Card connector on the bottom side complying with PCI-Express Mini Card Spec. V1.2. It supports either PCI-Express, USB 2.0 or SATA (mSATA). Since the default setting is mSATA, if the PCI-Express Mini Card is needed to insert, please refer to section 6.4 to change the setting. Pin Signal Pin Signal 1 3 5 7 9 11 13 15 17 19 21 WAKE# No use No use CLKREQ# GND CLK_PICE_ N CLK_PICE_ P GND No use No use GND mSATA_RXP /PCIE_RXN mSATA_RXN /PCIE_RXP GND GND mSATA_TXN /PCIE_TXN mSATA_TXP /PCIE_TXP GND GND +3.3V_SBY +3.3V_SBY GND No use No use No use No use 2 4 6 8 10 12 14 16 18 20 22 +3.3V_SBY GND +V1.5S SIM PWR SIM I/O SIM CLK SIM RST SIM VPP GND +3.3V_SBY PLTRST 24 +3.3V_SBY 26 GND 28 30 +V1.5S SMB_CLK 32 SMB_DATA 34 GND 36 38 40 42 44 46 48 50 52 USB_PN2 USB_PP2 GND No use No use No use +V1.5S GND +3.3V_SBY 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 22 SCN1 Board and Pin Assignments PICO841/843 Pico-ITX Board 2.5.15 SIM Card Slot (SCN2) The SCN2 on the bottom side is for inserting SIM Card. It is mainly used in 3G wireless network application. In order to work properly, the SIM Card must be used together with Mini Card which is inserted to SCN1 or SCN3. Pin Signal 1 2 3 4 5 6 7 8 SIM PWR SIM RST SIM CLK NC GND SIM VPP SIM I/O NC 2.5.16 Half-size PCI-Express Mini Card Connector (SCN3) This is a half-size PCI-Express Mini Card connector on the bottom side complying with PCI-Express Mini Card Spec. V1.2. It supports either PCI-Express or USB 2.0. Pin Signal Pin Signal 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 WAKE# No use No use CLKREQ# GND CLK_PICE_ N CLK_PICE_ P GND No use No use GND PCIE_RXN1 PCIE_RXP1 GND GND PCIE_TXN1 PCIE_TXP1 GND GND +3.3V_SBY +3.3V_SBY GND No use No use No use No use 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 +3.3V_SBY GND +V1.5S SIM PWR SIM I/O SIM CLK SIM RST SIM VPP GND +3.3V_SBY PLTRST +3.3V_SBY GND +V1.5S SMB_CLK SMB_DATA GND USB_PN3 USB_PP3 GND No use No use No use +V1.5S GND +3.3V_SBY Board and Pin Assignments SCN3 23 PICO841/843 Pico-ITX Board This page is intentionally left blank. 24 Board and Pin Assignments PICO841/843 Pico-ITX Board Chapter 3 AX93283 I/O Board The AX93283 is an I/O expansion board which is suggested to insert carefully into CN1 and CN2 of PICO841/843. Its specifications and detailed information are given in this chapter. 3.1 AX93283 Specifications Size 29.25mm x 118mm Features Supports audio jack (MIC-in/line-out). Four USB 2.0. Serial ports: Two ports for RS-232/422/485. Power-on, reset and red/green LED. All specifications and images are subject to change without notice. Note 3.2 AX93283 Dimensions and Fixing Holes Top View AX93283 I/O Board 25 PICO841/843 Pico-ITX Board Bottom View 3.3 AX93283 Board Layout Top View Side View 26 AX93283 I/O Board PICO841/843 Pico-ITX Board 3.4 AX93283 Jumper Settings Properly configure jumper settings on the AX93283 I/O board to meet your application purpose. Below you can find a summary table of all jumpers and onboard default settings. Once the default jumper setting needs to be changed, please do it under power-off condition. Note 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 6.4). 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 AX93283 I/O Board 27 PICO841/843 Pico-ITX Board 3.5 AX93283 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/Switch/LED Description CN1 System Reset Switch CN2 Audio Jack CN3 COM1 Connector CN4 COM2 Connector CN5 System Power Switch CN9 40-pin Board to Board Connector CN10 20-pin Board to Board Connector USB1~USB2 USB 2.0 Connectors D1 Power and HDD LED indicator 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. 28 Pin Color Signal Green Pink Line-out MIC-in AX93283 I/O Board PICO841/843 Pico-ITX Board 3.5.3 COM1 Connector (CN3) CN3 is the lower connector of the double-deck DB-9 connector. Only COM1 comes with power capability on DCD and RI pins by setting jumpers (see section 3.4.1). The pin assignments of RS-232/422/485 are listed in table below. If you need COM1 port to support RS-422 or RS-485, please refer to section 6.4. 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-232/422/485 are listed in table below. If you need COM2 port to support RS-422 or RS-485, please refer to section 6.4. Pin RS-232 RS-422 RS-485 1 2 3 4 5 6 7 8 9 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 3.5.5 CN4 System Power Switch (CN5) This switch is for turning on/off the system power. Function Description On Off Turn on/off system Keep system status AX93283 I/O Board 29 PICO841/843 Pico-ITX Board 3.5.6 Board to Board Connectors (CN9 and CN10) The pin assignments of CN9 are given as follows. 30 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 +12V +12V Ni 1 39 2 40 AX93283 I/O Board PICO841/843 Pico-ITX Board 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 1 19 2 20 Please gently insert CN9 and CN10 into CN2 and CN1 of PICO841/843. Note 3.5.7 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. 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 3.5.8 5 6 7 8 1 2 3 4 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 AX93283 I/O Board 31 PICO841/843 Pico-ITX Board This page is intentionally left blank. 32 AX93283 I/O Board PICO841/843 Pico-ITX Board Chapter 4 AX93267 I/O Board The AX93267 is an I/O expansion board which is suggested to insert carefully into CN1 and CN2 of PICO841/843. Its specifications and detailed information are given in this chapter. 4.1 AX93267 Specifications Size 29.25mm x 118mm Features One D-Sub VGA port One RJ-45 Ethernet port. DC power jack. All specifications and images are subject to change without notice. Note AX93267 I/O Board 33 PICO841/843 Pico-ITX Board 4.2 AX93267 Dimensions and Fixing Holes Top View Side View 34 AX93267 I/O Board PICO841/843 Pico-ITX Board 4.3 AX93267 Board Layout Top View Side View AX93267 I/O Board 35 PICO841/843 Pico-ITX Board 4.4 AX93267 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 DC Power Jack CN2 DC Power Connector CN3 VGA Connector CN4 D-Sub VGA Connector CN5 Ethernet Connector CN6 RJ-45 Ethernet Port 4.4.1 DC Power Jack (CN1) The CN1 is a DC power jack for DC +12V input. Pin Signal 1 2 3 4 GND GND +12V +12V 4.4.2 DC Power Connector (CN2) This is a 1x4-pin wafer connector for DC +12V. It is suggested to connect the CN2 to PICO841/843’s CN11. 36 Pin Signal 1 2 3 4 +12V +12V GND GND AX93267 I/O Board PICO841/843 Pico-ITX Board 4.4.3 VGA Connector (CN3) This is a 16-pin wafer connector for VGA interface. Gently connect this CN3 to PICO841/843’s CN12. Pin Signal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RSVD RED GND GREEN GND BLUE GND VCC DDC_DATA GND GND HSYNC GND VSYNC DDC_CLK GND 4.4.4 D-Sub VGA Connector (CN4) The CN4 is a standard 15-pin D-Sub connector. It is commonly used for 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 AX93267 I/O Board 37 PICO841/843 Pico-ITX Board 4.4.5 Ethernet Connector (CN5) This is a 16-pin wafer connector for Ethernet interface. Gently connect this CN5 to PICO841/843’s LAN1. Pin Signal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1000 LAN LED 100 LAN LED GND MDI3MDI3+ MDI1MDI2MDI2+ MDI1+ MDI0MDI0+ GND LAN_VDD33 LAN_LINK_ACT GND GND 4.4.6 RJ-45 Ethernet Port (CN6) This 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 38 Signal Pin Signal MDI0P L5 MDI2P MDI0N L6 MDI2N MDI1P L7 MDI3P MDI1N L8 MDI3N Active LED (Yellow) 1000 LAN LED (Orange) / 100 LAN LED (Green) AX93267 I/O Board PICO841/843 Pico-ITX Board Chapter 5 Hardware Description 5.1 Microprocessors ® TM ® The PICO841 supports Intel Atom E3845/E3827 processors and PICO843 supports Intel ® ® Celeron J1900/N2807 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. 5.2 BIOS The PICO841/843 uses AMI Plug and Play BIOS with a single 16Mbit SPI Flash. 5.3 System Memory The PICO841/843 supports one 204-pin DDR3L SO-DIMM socket for maximum memory capacity up to 8GB DDR3L SDRAMs. The memory module comes in sizes of 1GB, 2GB, 4GB and 8GB. Hardware Description 39 PICO841/843 Pico-ITX Board 5.4 40 I/O Port Address Map Hardware Description PICO841/843 Pico-ITX Board 5.5 Interrupt Controller (IRQ) Map The interrupt controller (IRQ) mapping list is shown as follows: Hardware Description 41 PICO841/843 Pico-ITX Board 42 Hardware Description PICO841/843 Pico-ITX Board 5.6 Memory Map The memory mapping list is shown as follows: Hardware Description 43 PICO841/843 Pico-ITX Board This page is intentionally left blank. 44 Hardware Description PICO841/843 Pico-ITX Board Chapter 6 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. 6.1 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. If your computer cannot boot after making and saving system changes with BIOS setup, you can restore BIOS optimal defaults by setting JP6 (see section 2.4.4). Note 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. 6.2 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. Some of the navigation keys differ from one screen to another. Note AMI BIOS Setup Utility 45 PICO841/843 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. 6.3 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. 46 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board System Language Choose the system default language. 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. Access Level Display the access level of current user. 6.4 Advanced Menu 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 F81803 Super IO Configuration F81803 HW Monitor CPU Configuration IDE Configuration Miscellaneous Configuration Trusted Computing USB Configuration Utility Configuration For items marked with “”, please press <Enter> for more options. AMI BIOS Setup Utility 47 PICO841/843 Pico-ITX Board ACPI Settings You can use this screen to select options for the ACPI configuration, and change the value of the selected option. A description of the selected item appears on the right side of the screen. ACPI Sleep State Select the ACPI (Advanced Configuration and Power Interface) sleep state. Configuration options are Suspend Disabled and S3 (Suspend to RAM). The default setting is S3 (Suspend to RAM); this option selects ACPI sleep state the system will enter when suspend button is pressed. 48 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board F81803 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 1~2 Configuration Set parameters related to serial port 1~2. AMI BIOS Setup Utility 49 PICO841/843 Pico-ITX Board Serial Port 1 Configuration Serial Port Enable or disable serial port 1. The optimal setting for base I/O address is 3F8h and for interrupt request address is IRQ4. COM Port Type Use this option to set RS-232/422/485 communication mode. 50 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board Serial Port 2 Configuration Serial Port Enable or disable serial port 2. The optimal setting for base I/O address is 2F8h and for interrupt request address is IRQ3. COM Port Type Use this option to set RS-232/422/485 communication mode. AMI BIOS Setup Utility 51 PICO841/843 Pico-ITX Board F81803 HW Monitor This screen monitors hardware health status. This screen displays the temperature of system and CPU, system voltages (VCORE and +5V). 52 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board CPU Configuration This screen shows the CPU Configuration, and you can change the value of the selected option. Socket 0 CPU Information This item is for CPU information. Intel Virtualization Technology Enable or disable Intel Virtualization Technology. When enabled, a VMM (Virtual Machine Mode) can utilize the additional hardware capabilities. It allows a platform to run multiple operating systems and applications independently, hence enabling a computer system to work as several virtual systems. AMI BIOS Setup Utility 53 PICO841/843 Pico-ITX Board 54 Socket 0 CPU Information This screen shows CPU Information. AMI BIOS Setup Utility PICO841/843 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. Serial-ATA (SATA) Enable or disable the SATA Controller feature. The default is Enabled. SATA Mode Determine how SATA controller(s) operate. Operation mode options are IDE Mode and AHCI (Advanced Host Controller Interface) Mode. The default is AHCI Mode. AMI BIOS Setup Utility 55 PICO841/843 Pico-ITX Board Serial-ATA Port 0~1 Enable or disable the onboard SATA port 0~1. MiniCard Switch This option appears only after SATA Port 1 is enabled. The default is mSATA. If the PCI-Express Mini Card via PCI-Express interface is needed to insert to SCN1 (see section 2.5.14), please change setting to PCIE. 56 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board Miscellaneous Configuration OS Selection ® ® Use this item to select Windows 8.x or Windows 7 operating system. The default is ® Windows 8.x. AMI BIOS Setup Utility 57 PICO841/843 Pico-ITX Board Trusted Computing This screen provides function for specifying the TPM settings. Security Device Support Enable or disable BIOS support for security device. The default setting is Disabled. TPM State Once the Security Device Support is Enabled, TPM can be used by the operating system. Current Status Information Display current TPM status information. 58 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board USB Configuration USB Devices Display all detected USB devices. Legacy USB Support Use this item to enable or disable support for USB device on legacy operating system. The default setting is Enabled. Auto option disables legacy support if no USB devices are connected. Disable option will keep USB devices available only for EFI applications. AMI BIOS Setup Utility 59 PICO841/843 Pico-ITX Board Utility Configuration BIOS Flash Utility BIOS flash utility configuration. For more detailed information, please refer to Appendix C. 60 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board 6.5 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: ► North Bridge ► South Bridge For items marked with “”, please press <Enter> for more options. AMI BIOS Setup Utility 61 PICO841/843 Pico-ITX Board North Bridge This screen allows users to configure parameters of North Bridge chipset. Memory Information Show the information related to system memory. LVDS Panel Type Select LVDS panel resolution; see the selection options in image above. 62 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board South Bridge This screen allows users to configure parameters of South Bridge chipset. USB Configuration This item is for USB configuration settings. Audio Controller Control detection of the audio device. AMI BIOS Setup Utility 63 PICO841/843 Pico-ITX Board South Bridge – USB Configuration XHCI Mode ® When Advanced\Miscellaneous Configuration\OS Selection is set to Windows 8.x, XHCI mode is Enabled. Meanwhile, when Advanced\Miscellaneous Configuration\OS Selection is set to Windows 7, XHCI mode is Smart Auto. 64 ® AMI BIOS Setup Utility PICO841/843 Pico-ITX Board 6.6 Security Menu The Security menu allows users to change the security settings for the system. Administrator Password Set administrator password. User Password Set user password. AMI BIOS Setup Utility 65 PICO841/843 Pico-ITX Board 6.7 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. Bootup NumLock State Use this item to select the power-on state for the keyboard NumLock. Quiet Boot Select to display either POST output messages or a splash screen during boot-up. Legacy PXE OpROM Enable or disable the Preboot eXecution Environment (PXE) boot ROM function of the onboard LAN chip during system boots up. Boot Option Priorities [Boot Option #1, #2…] These are settings for boot priority. Specify the boot device priority sequence from the available devices. Hard Drive BBS Priorities Set the boot order of the specific devices in this group. This option appears only if at least one device of this group is detected. 66 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board 6.8 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 67 PICO841/843 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. Launch EFI Shell from filesystem device Attempt to launch EFI Shell application (Shellx64.efi) from one of the available filesystem devices. 68 AMI BIOS Setup Utility PICO841/843 Pico-ITX Board Appendix A Watchdog Timer A.1 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. A.2 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 Next Enable and Initialize Watchdog Timer Next Program “A” Next Disable Watchdog Timer Next Watchdog Timer Begin Next Enable and Initialize Watchdog Timer Next Program “A” Next Reset Watchdog Timer Next 69 PICO841/843 Pico-ITX Board A.3 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,07h dx,al ;Enable mov mov out mov mov out WDT base address: dx,2Eh al,30h dx,al dx,2Fh al,01h dx,al ;Un-lock super I/O ;Activate WDT: mov dx,2Eh mov al,0F0h out dx,al mov dx,2Fh mov al,80h out dx,al ;Set base timer : mov dx,2Eh mov al,0F6h out dx,al mov dx,2Fh mov al,Mh out dx,al ;M=00h,01h,...FFh (hex),Value=0 to 255 ;(see below Note) ;Set Second or Minute : mov dx,2Eh mov al,0F5h out dx,al mov dx,2Fh mov al,Nh ;N=71h or 79h(see below out dx,al Note) Note: If N=71h, 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 70 Watchdog Timer PICO841/843 Pico-ITX Board If N=79h, 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 71 PICO841/843 Pico-ITX Board This page is intentionally left blank. 72 Watchdog Timer PICO841/843 Pico-ITX Board Appendix B Window® 7 Installation Guide ® Before you install Windows 7, please follow the instructions below: 1. Enter BIOS setup utility, and ensure that Advanced\Miscellaneous Configuration\OS ® Selection option is set to Windows 7 (see section 6.4). 2. After that, go to Chipset\South Bridge to verify that XHCI Mode is Smart Auto. ® Windows 7 Installation Guide 73 PICO841/843 Pico-ITX Board 3. Save changes and exit BIOS utility. 4. Reboot and you may begin to install Windows 7 on your computer. But please note that during installation, only the two USB ports (pin 13~16) at CN2 and USB1 at AX93283 can be used. 5. After Windows 7 installation is complete, install XHCI driver (Intel_USB_3.0_xHC_Driver_3.0.4.65_MR4_PV) from the product information CD. After installing driver, all of the four USB ports can work properly. 74 Windows 7 Installation Guide ® ® ® PICO841/843 Pico-ITX Board Appendix C BIOS Flash Utility The BIOS Flash utility is a new helpful function in BIOS setup program. With this function you can easily update system BIOS without having to enter operating system. In this appendix you may learn how to do it in just a few steps. Please read and follow the instructions below carefully. 1. In your USB flash drive, create a new folder and name it “Axiomtek”, see figure below. 2. Copy BIOS ROM file (e.g. PICO843X.008) to “Axiomtek” folder. PICO843X.008 3. Insert the USB flash drive to your system. 4. Enter BIOS setup menu and go to Advanced\Utility Configuration. Select BIOS Flash Utility and press <Enter>. BIOS Flash Utility 75 PICO841/843 Pico-ITX Board 5. BIOS automatically detect all USB drive(s) attached to the system. In this example only one USB drive is attached to the system. That’s why, you can see only one device is displayed in figure below. 6. Select the USB drive containing BIOS ROM file you want to update using the <> or <> key. Then press <Enter> to get into “Axiomtek” folder. 7. Now you can see the BIOS ROM file on the screen, press <Enter> to select. PICO843X.008 8. 76 Select Start to flash system BIOS option to begin updating procedure. BIOS Flash Utility PICO841/843 Pico-ITX Board 9. Please wait while BIOS completes the entire flash update process: erase data, write new data and verify data. 10. When you see the following figure, press <Enter> to finish the update process. After that the system will shut down and restart immediately. BIOS Flash Utility 77