NANO830/831 ® Intel AtomTM D2550/N2600 Processor Nano-ITX Board User’s Manual Disclaimers This manual has been carefully checked and believed to contain accurate information. Axiomtek Co., Ltd. assumes no responsibility for any infringements of patents or any third party’s rights, and any liability arising from such use. Axiomtek does not warrant or assume any legal liability or responsibility for the accuracy, completeness or usefulness of any information in this document. Axiomtek does not make any commitment to update the information in this manual. Axiomtek reserves the right to change or revise this document and/or product at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Axiomtek Co., Ltd. CAUTION If you replace wrong batteries, it causes the danger of explosion. It is recommended by the manufacturer that you follow the manufacturer’s instructions to only replace the same or equivalent type of battery, and dispose of used ones. Copyright 2013 Axiomtek Co., Ltd. All Rights Reserved January 2013, Version A2 Printed in Taiwan ii ESD Precautions Computer boards have integrated circuits sensitive to static electricity. To prevent chipsets from electrostatic discharge damage, please take care of the following jobs with precautions: Do not remove boards or integrated circuits from their anti-static packaging until you are ready to install them. Before holding the board or integrated circuit, touch an unpainted portion of the system unit chassis for a few seconds. It discharges static electricity from your body. Wear a wrist-grounding strap, available from most electronic component stores, when handling boards and components. Trademarks Acknowledgments Axiomtek is a trademark of Axiomtek Co., Ltd. ® Windows is a trademark of Microsoft Corporation. AMI is trademark of American Megatrend Inc. IBM, PC/AT, PS/2, VGA are trademarks of International Business Machines Corporation. ® ® Intel and Pentium are trademarks of Intel Corporation. Other brand names and trademarks are the properties and registered brands of their respective owners. iii Table of Contents Disclaimers.....................................................................................................ii ESD Precautions ...........................................................................................iii Chapter 1 Introduction............................................. 1 1.1 Features ...............................................................................................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 .......................................................................................8 2.3 Jumper Settings ................................................................................10 2.3.1 LVDS Voltage Selection (JP1)....................................................................11 2.3.2 COM1 RS-232/422/485 Mode Setting (JP2, JP3, JP4) .............................11 2.3.3 COM2 Data/Power Selection (JP5)............................................................11 2.3.4 COM1 Data/Power Selection (JP6)............................................................11 2.3.5 LVDS Brightness Control Mode Setting (JP8)........................................... 12 2.3.6 Restore BIOS Optimal Defaults (JP9)....................................................... 12 2.3.7 Auto Power On (JP10) .............................................................................. 12 2.4 Connectors ........................................................................................13 2.4.1 Digital I/O Port (CN1) ................................................................................ 14 2.4.2 COM2 Connector (CN2 or CN19) ............................................................. 14 2.4.3 COM1 Connector (CN3)............................................................................ 15 2.4.4 LVDS Connector (CN4) ............................................................................. 15 2.4.5 Inverter Connector (CN5).......................................................................... 17 2.4.6 Front Panel Connector (CN6) ................................................................... 17 2.4.7 PCI-Express Mini Card Connector (CN7) ................................................. 18 2.4.8 Power Output Connector (CN8) ................................................................ 19 2.4.9 CPU Fan Connector (CN9) ....................................................................... 19 2.4.10 SMBus Connector (CN10) ........................................................................ 19 2.4.11 USB Connector (CN11) ............................................................................. 19 2.4.12 Ethernet and USB Port Stacks (CN12 and CN13) .................................... 20 2.4.13 VGA Connector (CN14)............................................................................. 20 2.4.14 Audio Jack (CN16) .................................................................................... 21 2.4.15 DC Jack Power Connector (CN17) ........................................................... 21 2.4.16 DisplayPort Connector (CN18).................................................................. 21 2.4.17 Serial ATA Connector (SATA1) .................................................................. 22 2.4.18 CFast™ Socket (SSCFAST1) ................................................................... 22 iv Chapter 3 Hardware Description ........................... 24 3.1 Microprocessors ...............................................................................24 3.2 BIOS ...................................................................................................24 3.3 System Memory.................................................................................24 3.4 I/O Port Address Map........................................................................25 3.5 Interrupt Controller (IRQ) Map .........................................................27 3.6 Memory Map ......................................................................................30 Chapter 4 AMI BIOS Setup Utility .......................... 32 4.1 Starting...............................................................................................32 4.2 Navigation Keys ................................................................................32 4.3 Main Menu..........................................................................................33 4.4 Advanced Menu.................................................................................34 4.5 Chipset Menu.....................................................................................40 4.6 Boot Menu..........................................................................................44 4.7 Security Menu....................................................................................45 4.8 Save & Exit Menu ..............................................................................46 Chapter 5 Drivers Installation................................ 48 5.1 Installing Chipset Driver ...................................................................48 5.2 Installing Graphics Media Accelerator Driver .................................51 5.3 Installing Ethernet Driver..................................................................55 5.4 Installing Audio Driver ......................................................................57 Appendix A Watchdog Timer................................... 60 About Watchdog Timer................................................................................60 How to Use Watchdog Timer.......................................................................60 Sample Program ..........................................................................................61 Appendix B Digital I/O ............................................. 64 About Digital I/O ...........................................................................................64 Digital I/O Programming ..............................................................................64 v This page is intentionally left blank. vi NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Chapter 1 Introduction NANO830 NANO831 The NANO830/831, a Nano-ITX board, supports Intel® AtomTM D2550/N2600 processors. The board integrates the Intel® NM10 chipset and delivers outstanding system performance through high-bandwidth interfaces, multiple I/O functions for interactive applications and various embedded computing solutions. There is one 204-pin unbuffered SO-DIMM socket for single channel DDR3-800/1066MHz memory, maximum memory capacity up to 4GB (N2600 supports DDR3-800 up to 2GB only). It also features two Gigabit/Fast Ethernet ports, one serial ATA channels for total one Serial ATA hard drive at maximum transfer rate up to 300MB/sec, six USB 2.0 high speed compliant, and built-in HD audio codec that can achieve the best stability and reliability for industrial applications. Additionally, it provides you with unique embedded features, such as two serial ports and Nano-ITX form factor that applies an extensive array of PC peripherals. Introduction 1 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 1.1 Features Intel® AtomTM dual core D2550 (1.86GHz) and N2600 (1.6GHz) Intel® NM10 chipset 1 DDR3 SO-DIMM supports up to 4GB memory capacity 6 USB 2.0 ports 2 COM ports Supports CFastTM 1.2 Specifications CPU Intel® AtomTM dual core D2550 1.86GHz. Intel® AtomTM dual core N2600 1.6GHz Thermal Solution With AtomTM dual core D2550 1.86GHz as fan solution. With AtomTM dual core N2600 1.6GHz as fanless solution System Chipset Intel® NM10 chipset. BIOS American Megatrends Inc. UEFI (Unified Extensible Firmware Interface) BIOS. 16Mbit SPI Flash, DMI, Plug and Play. RPL/PXE Ethernet Boot ROM. System Memory One 204-pin unbuffered DDR3 SO-DIMM socket. Maximum up to 4GB DDR3 1066MHz memory for D2550. Maximum up to 2GB DDR3 800MHz memory for N2600. Onboard Multi I/O Controller: Nuvoton NCT6627UD. Serial Ports: One port for RS-232/422/485 and one port for RS-232. Serial ATA One SATA-300 connector. CFast™ Socket One CFast™ socket. USB Interface Six USB ports with fuse protection and complies with USB Spec. Rev. 2.0. Display A high rise 15-pin D-Sub connector as VGA connector. One 40-pin connector for 18/24-bit single/dual channel LVDS and one 8-pin inverter connector. For N2600, LVDS resolution is up to 1600x1200 in 24-bit dual channel. For D2550, LVDS resolution is up to 1920x1200 in 24-bit dual channel. One DisplayPort (NANO830 only). 2 Introduction NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Trusted Platform Module (TPM) Controller: Infineon SLB9635 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 Two ports with Intel® 82583V for Gigabit/Fast Ethernet. Audio HD audio compliant with Realtek ALC662. Line-out and MIC-in audio jack. Expansion Interface One PCI-Express Mini Card socket which complies with PCI-Express Mini Card Spec. V1.2. Power Input DC power jack connector co-layout with 2x2 pin connector and 1x2 pin right angle connector +12V DC-in only AT auto power on function supported Power Management ACPI (Advanced Configuration and Power Interface). Form Factor Nano-ITX form factor. Note: All specifications and images are subject to change without notice. 1.3 Utilities Supported Chipset and graphics driver Ethernet driver (82583V) Audio driver TPM utility Unify API for hardware monitor, digital I/O and watchdog timer Introduction 3 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board This page is intentionally left blank. 4 Introduction NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Chapter 2 Board and Pin Assignments 2.1 Board Dimensions and Fixing Holes Top View Board and Pin Assignments 5 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Bottom View 6 Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board NANO830 NANO831 Side View Board and Pin Assignments 7 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.2 Board Layout Top View 8 Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Bottom View NANO830 – Side View Board and Pin Assignments NANO831 – Side View 9 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.3 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 NANO830/831 to meet your application purpose. Below you can find a summary table of all jumpers and onboard default settings. Note: Once the default jumper setting needs to be changed, please do it under power-off condition. Jumper Description Setting JP1 LVDS Voltage Selection Default: +3.3V level 1-2 Close JP2 JP3 JP4 JP5 JP6 JP8 JP9 JP10 10 3-5, 4-6 Close COM1 RS-232/422/485 Mode Setting Default: RS-232 COM2 Data/Power Selection (NANO830 only) Default: RS-232 Data COM2 Data/Power Selection (NANO831 only) Default: RS-232 Data COM1 Data/Power Selection Default: RS-232 Data LVDS Brightness Control Mode Setting Default: PWM Mode Restore BIOS Optimal Defaults Default: Normal Operation Auto Power On Default: Disable 3-5, 4-6 Close 1-2 Close CN2 Pin 1: DCD CN2 Pin 8: RI CN19 Pin 1: DCD CN19 Pin 9: RI CN3 Pin 1: DCD 3-5 Close 4-6 Close 3-5 Close 4-6 Close 3-5 Close CN3 Pin 8: RI 4-6 Close 1-2 Close 1-2 Close Close Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.3.1 LVDS Voltage Selection (JP1) The board supports voltage selection for flat panel displays. Use JP1 to set LVDS connector (CN4) pin 1~6 VCCM to +3.3V or +5V voltage level. Function Setting +3.3V level (Default) +5V level 1-2 close 2-3 close 2.3.2 COM1 RS-232/422/485 Mode Setting (JP2, JP3, JP4) Use these jumpers to set COM1 port to operate as RS-232, RS-422 or RS-485 communication mode. When these jumpers are set to operate as RS-422 or RS485, please make sure COM1 is on data mode (see section 2.3.4) Function Setting RS-232 mode (Default) RS-422 mode RS-485 mode 2.3.3 JP2 3-5, 4-6 close JP3 3-5, 4-6 close JP4 1-2 close JP2 1-3, 2-4 close JP3 1-3, 2-4 close JP4 3-4 close JP2 1-3, 2-4 close JP3 1-3, 2-4 close JP4 5-6 close COM2 Data/Power Selection (JP5) The COM2 port has +5V level power capability on DCD and +12V level on RI by setting this jumper. Function Setting Power: Set CN2 pin 1/CN19 pin 1 to +5V level Data: Set CN2 pin 1/CN19 pin 1 to DCD (Default) Power: Set CN2 pin 8/CN19 pin 9 to +12V level Data: Set CN2 pin 8/ CN19 pin 9 to RI (Default) 1-3 close 3-5 close 2-4 close 4-6 close Note: 2.3.4 The CN2 is a connector on NANO830 while CN19 is a connector on NANO831. COM1 Data/Power Selection (JP6) The COM1 port has +5V level power capability on DCD and +12V level on RI by setting this jumper. When this port is set to +5V or +12V level, please make sure its communication mode is RS-232 (see section 2.3.2). Function Setting Power: Set CN3 pin 1 to +5V level Data: Set CN3 pin 1 to DCD (Default) Power: Set CN3 pin 8 to +12V level Data: Set CN3 pin 8 to RI (Default) 1-3 close 3-5 close 2-4 close 4-6 close Board and Pin Assignments 11 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.3.5 LVDS Brightness Control Mode Setting (JP8) The JP8 enables you to select PWM or voltage control mode for inverter connector (CN5). 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 2.3.6 Restore BIOS Optimal Defaults (JP9) 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 2.3.7 Auto Power On (JP10) If JP10 is enabled for AC power input, the system will be automatically power on without pressing soft power button. If JP10 is disabled for AC power input, it is necessary to manually press soft power button to power on the system. 12 Function Setting Disable auto power on (Default) Enable auto power on Close Open Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.4 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 Digital I/O Port CN2 COM2 Connector (NANO830 only) CN3 COM1 Connector CN4 LVDS Connector CN5 Inverter Connector CN6 Front Panel Connector CN7 PCI-Express Mini Card Connector CN8 Power Output Connector CN9 CPU Fan Connector CN10 SMBus Connector CN11 USB Port 4 and 5 Connector CN12 Ethernet Port 1, USB Port 0 and 1 Stack CN13 Ethernet Port 2, USB Port 2 and 3 Stack CN14 VGA Connector CN16 Audio Jack CN17 DC Jack Power Connector CN18 DisplayPort Connector (NANO830 only) CN19 COM2 Connector (NANO831 only) SATA1 Serial ATA Connector SSCFAST1 CFastTM Socket SDIMM1 DDR3 SO-DIMM Connector Board and Pin Assignments 13 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.4.1 Digital I/O Port (CN1) The board is equipped with an 8-channel (3 inputs and 5 outputs) digital I/O connector that meets requirements for a system customary automation control. The digital I/O can be configured to control cash drawers and sense warning signals from an Uninterrupted Power System (UPS), or perform store security control. You may use software programming to control these digital signals. The software application method is provided in Appendix B. Pin Signal Pin Signal 1 3 5 7 9 DI0 DI1 DI2 GND GND 2 4 6 8 10 DO0 DO1 DO2 DO3 DO4 2.4.2 COM2 Connector (CN2 or CN19) The CN2 is a 2x5-pin box header (NANO830 only). This COM2 port has +5V level power capability on DCD and +12V level on RI by setting JP5 (see section 2.3.3). The pin assignments of RS-232 are listed in table below. Pin Signal Pin Signal 1 3 5 7 9 DCD RXD TXD DTR GND 2 4 6 8 10 DSR RTS CTS RI N.C. CN2 (NANO830 only) The CN19 is a standard 9-pin D-Sub connector on the rear IO (NANO831 only). This connector is equipped with +5V level power capability on DCD and +12V level on RI by setting JP5 (see section 2.3.3). The pin assignments of RS-232 are listed in table below. 14 Pin Signal 1 2 3 4 5 6 7 8 9 DCD RXD TXD DTR GND DSR RTS CTS RI CN19 (NANO831 only) Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.4.3 COM1 Connector (CN3) The CN3 is a 2x5-pin box header. This COM1 port has +5V level power capability on DCD and +12V level on RI by setting JP6 (see section 2.3.4). The pin assignments of RS-232/RS-422/RS-485 are listed in table below. If you need COM1 port to support RS-422 or RS-485, please refer to section 2.3.2. Pin RS-232 RS-422 RS-485 1 2 3 4 5 6 7 8 9 10 DCD DSR RXD RTS TXD CTS DTR RI GND No use TXNo use TX+ No use RX+ No use RXNo use No use No use DataNo use Data+ No use No use No use No use No use No use No use 2.4.4 LVDS Connector (CN4) This board has a 40-pin connector for LVDS LCD interface. It is strongly recommended to use the matching JST SHDR-40VS-B 40-pin connector for LVDS interface. Pin 1~6 VCCM can be set to +3.3V level or +5V level by setting JP1 (see section 2.3.1). 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 15 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 18-bit dual channel 24-bit single channel Pin Signal Pin Signal Pin Signal Pin Signal 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 VCCM VCCM VCCM N.C. GND N.C. N.C. GND N.C. N.C. GND Channel A D0Channel A D0+ GND Channel A D1Channel A D1+ GND Channel A D2Channel A D2+ GND VCCM VCCM VCCM N.C. GND N.C. N.C. GND N.C. N.C. GND N.C. N.C. GND Channel A D3Channel A D3+ GND Channel A CLKChannel A CLK+ GND VCCM VCCM VCCM N.C. GND N.C. N.C. GND Channel B CLKChannel B CLK+ GND Channel A D0Channel A D0+ GND Channel A D1Channel A D1+ GND Channel A D2Channel A D2+ GND VCCM VCCM VCCM N.C. GND Channel B D0Channel B D0+ GND Channel B D1Channel B D1+ GND Channel B D2Channel B D2+ GND N.C. N.C. GND Channel A CLKChannel A CLK+ GND 24-bit dual channel Pin Signal Pin Signal 1 VCCM 2 VCCM 3 VCCM 4 VCCM 5 VCCM 6 VCCM 7 N.C. 8 N.C. 9 GND 10 GND 11 Channel B D3- 12 Channel B D0- 13 Channel B D3+ 14 Channel B D0+ 15 GND 16 GND 17 Channel B CLK- 18 Channel B D1- 19 Channel B CLK+ 20 Channel B D1+ 21 GND 22 GND 23 Channel A D0- 24 Channel B D2- 25 Channel A D0+ 26 Channel B D2+ 27 GND 28 GND 29 Channel A D1- 30 Channel A D3- 31 Channel A D1+ 32 Channel A D3+ 33 GND 34 GND 35 Channel A D2- 36 Channel A CLK- 37 Channel A D2+ 38 Channel A CLK+ 39 GND 40 GND 16 Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.4.5 Inverter Connector (CN5) The CN5 is an 8-pin connector for inverter. We strongly recommend you to use the matching DF13-8S-1.25C connector to avoid malfunction. If the LVDS brightness control is set to voltage control mode (see section 2.3.5), the valid voltage range on pin 8 is 0~5V. 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 2.4.6 Front Panel Connector (CN6) Pin Signal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PWRLED+ EXT SPKN.C. Buzzer PWRLEDN.C. N.C. EXT SPK+ PWRSWPWRSW+ HW RSTHW RST+ HDDLEDHDDLED+ Power LED Pin 1 connects anode(+) of LED and pin 5 connects cathode(-) of LED. The power LED lights up when the system is powered on. External Speaker and Internal Buzzer Pin 2, 4, 6 and 8 connect the case-mounted speaker unit or internal buzzer. While connecting the CPU board to an internal buzzer, please set pin 2 and 4 closed; while connecting to an external speaker, you need to set pins 2 and 4 opened and connect the speaker cable to pin 8(+) and pin 2(-). Power On/Off Button Pin 9 and 10 connect the power button on front panel to the CPU board, which allows users to turn on or off power supply. Board and Pin Assignments 17 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board System Reset Switch Pin 11 and 12 connect the case-mounted reset switch that reboots your computer without turning off the power switch. It is a better way to reboot your system for a longer life of system power supply. 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 is assigned as cathode(-) and pin 14 is assigned as anode(+). 2.4.7 PCI-Express Mini Card Connector (CN7) This is a PCI-Express Mini Card connector that supports PCI-Express x1 link and USB 2.0 link. A PCI-Express Mini Card can be applied to either PCI-Express or USB 2.0. It complies with PCI-Express Mini Card Spec. V1.2. 18 Pin Signal Pin Signal 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 WAKE# No use No use CLKREQ# GND REFCLKREFCLK+ GND No use No use GND PE_RXN3 PE_RXP3 GND GND PE_TXN3 PE_TXP3 GND GND +3.3VSB +3.3VSB 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 +3.3VSB GND +1.5V No use No use No use No use No use GND W_DISABLE# PERST# +3.3VSB GND +1.5V SMB_CLK SMB_DATA GND USB_D6USB_D6+ GND No use No use No use +1.5V GND +3.3VSB Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.4.8 Power Output Connector (CN8) The CN8 is for interfacing to SATA 2.5" HDD power supply. Pin Signal 1 2 3 4 +12V level GND GND +5V level 2.4.9 CPU Fan Connector (CN9) A CPU fan interface is available through this connector. You can find fan speed on BIOS Setup Utility if CPU fan is installed. For further information, see BIOS Setup Utility: Advanced\H/W Monitor\PC Health Status (see section 4.4). Pin Signal 1 2 3 GND +12V level Fan speed feedback 2.4.10 SMBus Connector (CN10) 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 CLK DATA GND 2.4.11 USB Connector (CN11) This 2x5-pin wafer is a Universal Serial Bus (USB) connector which carries USB port 4 and USB port 5. It is for installing versatile USB interface peripherals. The CN11 is designed with +5V level standby power which can provide power when system is in suspend mode. Pin 1 3 5 7 9 Signal USB VCC (+5V level standby power) USB #4_DUSB #4_D+ GND GND Board and Pin Assignments Pin 2 4 6 8 10 Signal USB VCC (+5V level standby power) USB #5_DUSB #5_D+ GND GND 19 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.4.12 Ethernet and USB Port Stacks (CN12 and CN13) The board has two RJ-45 connectors. Ethernet 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. The lower Universal Serial Bus (compliant with USB 2.0 (480Mbps)) connector on the rear I/O are for installing USB peripherals such as keyboard, mouse, scanner, etc. Note that the CN12 carries ethernet port 1, USB port 0 and USB port 1, while the CN13 carries ethernet port 2, USB port 2 and USB port 3. Pin LAN Signal L1 L2 L3 L4 A B MDI0+ L5 MDI2MDI0L6 MDI1MDI1+ L7 MDI3+ MDI2+ L8 MDI3100 LAN LED (Green) / 1000 LAN LED (Orange) Active LED (Yellow) Pin USB Port 0 Pin USB Port 1 1 2 3 4 USB VCC (+5V level) USB #0_DUSB #0_D+ GND 5 6 7 8 USB VCC (+5V level) USB #1_DUSB #1_D+ GND Pin USB Port 2 Pin USB Port 3 1 2 3 4 USB VCC (+5V level) USB #2_DUSB #2_D+ GND 5 6 7 8 USB VCC (+5V level) USB #3_DUSB #3_D+ GND 2.4.13 Pin LAN Signal LAN USB VGA Connector (CN14) The CN14 is a high rise 15-pin D-Sub connector which is commonly used for CRT VGA monitor. This VGA interface configuration can be configured via software utility. 20 Pin Signal Pin Signal 1 3 5 7 9 11 13 15 Red Blue GND GND VCC N.C. Horizontal Sync DDC CLK 2 4 6 8 10 12 14 Green N.C. DETECT GND GND DDC DATA Vertical Sync Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.4.14 Audio Jack (CN16) Install onboard audio driver, then connect speaker to line-out jack and microphone to MIC-in jack. Pin Color Signal Green Pink Line_OUT Mic_IN 2.4.15 DC Jack Power Connector (CN17) The CN17 is a DC power jack with lock. Firmly insert at least 60W adapter into this connector. Loose connection may cause system instability and make sure all components/devices are properly installed before connecting this power jack. 2.4.16 DisplayPort Connector (CN18) The DisplayPort interface is available through connector CN18 (NANO830 only) which is also co-layout with a standard 9-pin D-Sub connector (CN19). Pin Signal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DPB_LANE0 GND DPB_LANE0# DPB_LANE1 GND DPB_LANE1# DPB_LANE2 GND DPB_LANE2# DPB_LANE3 GND DPB_LANE3# Detect Pin GND DPB_AUX GND DPB_AUX# DPB_HPDE GND +3.3V Board and Pin Assignments 1 20 21 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2.4.17 Serial ATA Connector (SATA1) This Serial Advanced Technology Attachment (Serial ATA or SATA) connector is for high-speed SATA interface port. It is a computer bus interface for connecting to device such as hard disk drive. Pin Signal 1 2 3 4 5 6 7 GND SATA_TX+ SATA_TXGND SATA_RXSATA_RX+ GND 2.4.18 CFast™ Socket (SSCFAST1) The board is equipped with a CFastTM socket on the bottom side to support a CFastTM card which is based on the Serial ATA bus. The socket is specially designed to avoid incorrect installation of the CFastTM card. When installing or removing the CFastTM card, please make sure the system power is off. The CFastTM card by default identifies itself as C: or D: drive in your PC system. 22 Pin Signal Pin Signal 1 2 3 4 5 6 7 8 9 10 11 12 GND SATA_TX+ SATA_TXGND SATA_RXSATA_RX+ GND N.C GND N.C N.C N.C 13 14 15 16 17 18 19 20 21 22 23 24 N.C GND N.C N.C N.C N.C N.C +3.3V Level +3.3V Level GND GND N.C Board and Pin Assignments NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board This page is intentionally left blank. Board and Pin Assignments 23 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Chapter 3 Hardware Description 3.1 Microprocessors The NANO830/831 supports Intel® AtomTM D2550/N2600 processors, which enable your system to operate under Windows® 7 environments. The system performance depends on the microprocessor. Make sure all correct settings are arranged for your installed microprocessor to prevent the CPU from damages. 3.2 BIOS The NANO830/831 uses AMI Plug and Play BIOS with a single 16Mbit SPI Flash. 3.3 System Memory The NANO830/831 supports one 204-pin DDR3 SO-DIMM socket for a maximum memory of 4GB DDR3 SDRAMs. The memory module comes in sizes of 1GB, 2GB and 4GB. 24 Hardware Description NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 3.4 I/O Port Address Map The Intel® AtomTM D2550/N2600 processors communicate via I/O ports. Total 1KB port addresses are available for assigning to other devices via I/O expansion cards. Hardware Description 25 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 26 Hardware Description NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 3.5 Interrupt Controller (IRQ) Map The interrupt controller (IRQ) mapping list is shown as follows: Hardware Description 27 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 28 Hardware Description NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Hardware Description 29 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 3.6 Memory Map The memory mapping list is shown as follows: 30 Hardware Description NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board This page is intentionally left blank. Hardware Description 31 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Chapter 4 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. 4.1 Starting To enter the setup screens, follow the steps below: 1. 2. Turn on the computer and press the <Del> key immediately. After you press the <Del> key, the main BIOS setup menu displays. You can access the other setup screens from the main BIOS setup menu, such as the Advanced and Chipset menus. Note: If your computer can not boot after making and saving system changes with Setup, you can restore BIOS optimal defaults by setting JP9 (see section 2.3.6). 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. 4.2 Navigation Keys The BIOS setup/utility uses a key-based navigation system called hot keys. Most of the BIOS setup utility hot keys can be used at any time during the setup navigation process. These keys include <F1>, <F2>, <Enter>, <ESC>, <Arrow> keys, and so on. Note: Some of the navigation keys differ from one screen to another. 32 AMI BIOS Setup Utility NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-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. 4.3 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. AMI BIOS Setup Utility 33 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board BIOS Information Display the auto-detected BIOS information. 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. 4.4 Advanced Menu Launch PXE OpROM Use this item to enable or disable the boot ROM function of the onboard LAN chip when the system boots up. Launch Storage OpROM Enable or disable boot option for legacy mass storage devices with option ROM. 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 Trusted Computing CPU Configuration IDE Configuration NCT6627UD Super IO Configuration NCT6627UD HW Monitor For items marked with “”, please press <Enter> for more options. 34 AMI BIOS Setup Utility NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board ACPI Settings ACPI Sleep State When the sleep button is pressed, the system will be in the ACPI sleep state. The default is S1 (CPU Stop Clock). AMI BIOS Setup Utility 35 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Trusted Computing This screen provides function for specifying the TPM settings. TPM Support Enable or disable BIOS support for security device. “Disable” is the default. Current Status Information Display current TPM status information. 36 CPU Configuration This screen shows the CPU Configuration. AMI BIOS Setup Utility NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board IDE Configuration In the IDE Configuration menu, you can see the currently installed hardware in the SATA ports. During system boot up, the BIOS automatically detects the presence of SATA devices. Configure SATA as Determine how SATA controller(s) operate. Operation mode options are IDE Mode and AHCI (Advanced Host Controller Interface) Mode. AMI BIOS Setup Utility 37 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board NCT6627UD 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 Use these items to enable or disable the serial port 1~2. 38 AMI BIOS Setup Utility NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board NCT6627UD HW Monitor This screen monitors hardware health status. This screen displays the temperature of system and CPU, CPU fan speed in RPM and system voltages (VCORE, +1.05V, +3.3V and +12V). AMI BIOS Setup Utility 39 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 4.5 Chipset Menu The Chipset menu allows users to change the advanced chipset settings. You can select any of the items in the left frame of the screen to go to the sub menus: ► Host Bridge For items marked with “”, please press <Enter> for more options. 40 AMI BIOS Setup Utility NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Host Bridge This screen allows users to configure parameters of Host Bridge chipset. Memory Frequency and Timing Use this item to refer to the information related to memory frequency. Intel IGD Configuration Use this item to configure internal graphics controller. AMI BIOS Setup Utility 41 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Intel IGD Configuration For NANO830: For NANO831: IGFX – Boot Type Select the video device which will be activated during POST (Power-On Self Test). This has no effect if external graphics present. 42 AMI BIOS Setup Utility NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board DP-LVDS Panel Type Select LVDS panel resolution. Brightness Use this item to select the brightness percentage of LVDS panel. Its range is from 30% to 100%. The default is 70%. AMI BIOS Setup Utility 43 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 4.6 Boot Menu The Boot menu allows users to change boot options of the system. Setup Prompt Timeout Number of seconds to wait for setup activation key. 65535(0xFFFF) means indefinite waiting. Bootup NumLock State Use this item to select the power-on state for the NumLock. Boot Option Priorities These are settings for boot priority. Specify the boot device priority sequence from the available devices. 44 AMI BIOS Setup Utility NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 4.7 Security Menu The Security menu allows users to change the security settings for the system. Administrator Password This item indicates whether an administrator password has been set (installed or uninstalled). User Password This item indicates whether an user password has been set (installed or uninstalled). AMI BIOS Setup Utility 45 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 4.8 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. 46 AMI BIOS Setup Utility NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-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. AMI BIOS Setup Utility 47 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Chapter 5 Drivers Installation The device drivers are located on the product information CD that comes with the NANO830/831 Series package. The auto-run function of drivers will guide you to install the utilities and device drivers under Windows system. You can follow the onscreen instructions to install these devices: Chipset Graphics Ethernet Audio 5.1 Installing Chipset Driver 1. Run the infinst_autol.exe program from the driver directory in product information CD. Click “Next” to next step. 48 Drivers Installation NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2. A Readme File Information screen appears to show you the system requirements and installation information. Click “Next” to next step. 3. Please wait while setup processes the following operations. Drivers Installation 49 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 4. You are suggested to select “Yes, I want to restart this computer now”. Click “Finish” to complete the setup process and reboot. 50 Drivers Installation NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 5.2 1. Installing Graphics Media Accelerator Driver Run the setup.exe program from the driver directory in product information CD. Click “Next” to next step. Drivers Installation 51 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2. When Intel® License Agreement screen appears, please click “Yes” to next step. 3. A Readme File Information screen appears to show you the system requirements and installation information. Click “Next” to next step. 52 Drivers Installation NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 4. Please wait while setup processes the following operations. 5. When the following screen appears, please click “Next”. Drivers Installation 53 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 6. You are suggested to select “Yes, I want to restart this computer now”. Click “Finish” to complete the setup process and reboot. Note: After the computer reboots, the display is in extended mode. Please click hot key <Ctrl+Alt+F1> to switch display back to single mode. 54 Drivers Installation NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 5.3 1. Installing Ethernet Driver Unzip PROWin32 for ethernet driver from the driver directory in product information CD. Click “Next” to start the installation. Drivers Installation 55 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2. When the following screen appears, please select the program features you want to install. Click “Next” to continue. 3. Click “Finish” to complete the installation. 56 Drivers Installation NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 5.4 1. Installing Audio Driver Run the setup.exe for audio from the driver directory in product information CD. Click “Next” to continue. Drivers Installation 57 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board 2. You are suggested to select “Yes, I want to restart my computer now”. Click “Finish” to complete the setup process and reboot. 58 Drivers Installation NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board This page is intentionally left blank. Drivers Installation 59 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Appendix A Watchdog Timer About Watchdog Timer Software stability is major issue in most application. Some embedded systems are not watched by human for 24 hours. It is usually too slow to wait for someone to reboot when computer hangs. The systems need to be able to reset automatically when things go wrong. The watchdog timer gives us solution. The watchdog timer is a counter that triggers a system reset when it counts down to zero from a preset value. The software starts counter with an initial value and must reset it periodically. If the counter ever reaches zero which means the software has crashed, the system will reboot. How to Use Watchdog Timer The I/O port base addresses of watchdog timer are 2E (hex) and 2F (hex). The 2E (hex) and 2F (hex) are address and data port respectively. Assume that program A is put in a loop that must execute at least once every 10ms. Initialize watchdog timer with a value bigger than 10ms. If the software has no problems; watchdog timer will never expire because software will always restart the counter before it reaches zero. Begin Begin Next Enable and Initialize Watchdog Timer Next Enable and Initialize Watchdog Timer Next Program A Next Disable Watchdog Timer Next 60 Next Program A Next Reset Watchdog Timer Next Watchdog Timer NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Sample Program Assembly sample code : ;Enable mov mov out out WDT: dx,2Eh al,87 dx,al dx,al ;Select mov mov out mov mov out Logic device: dx,2Eh al,07h dx,al dx,2Fh al,08h dx,al ;Un-lock super I/O ;Activate WDT: mov dx,2Eh mov al,30h out dx,al mov dx,2Fh mov al,01h out dx,al ;Set Second or Minute : mov dx,2Eh mov al,0F5h out dx,al mov dx,2Fh mov out al,Nh dx,al ;N=00h or 08h(see below Note) ;Set base timer : mov dx,2Eh mov al,0F6h out dx,al mov dx,2Fh mov al,Mh ;M=00h,01h,...FFh (hex),Value=0 to 255 out ;(see below dx,al ;Disable WDT: mov dx,2Eh mov al,30h out dx,al mov dx,2Fh mov al,00h out dx,al Note) ;Can be disabled at any time Note: If N=00h, the time base is set to second. M = time value 00: Time-out Disable 01: Time-out occurs after 1 second 02: Time-out occurs after 2 seconds 03: Time-out occurs after 3 seconds . . FFh: Time-out occurs after 255 seconds Watchdog Timer 61 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board If N=08h, the time base is set to minute. M = time value 00: Time-out Disable 01: Time-out occurs after 1 minute 02: Time-out occurs after 2 minutes 03: Time-out occurs after 3 minutes . . FFh: Time-out occurs after 255 minutes 62 Watchdog Timer NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board This page is intentionally left blank. Watchdog Timer 63 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Appendix B Digital I/O About Digital I/O The onboard digital I/O has 8 bits (DI0~2 and DO0~4). Each bit can be set to function as input or output by software programming. In default, all pins are pulled high with +5V level (according to main power). CN1 Pin Signal Pin Signal 1 3 5 7 9 DI0 DI1 DI2 GND GND 2 4 6 8 10 DO0 DO1 DO2 DO3 DO4 Digital I/O Programming Assembly sample code : Set functionality: ;Start set DIO program: mov mov out out dx,2Eh al,87h dx,al dx,al ;Un-lock super I/O mov mov out mov mov out dx,2Eh al,07h dx,al dx,2Fh al,08h dx,al ;Switch to DIO logic device mov mov out mov dx,2Eh al,30h dx,al dx,2Fh ;Enable DI and DO port 64 Digital I/O NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board mov out al,06h dx,al ;Programming DI port as input. mov dx,2Eh mov al,0E0h out dx,al mov dx,2Fh mov al,Nh ;If N=E0h, DI is programmed as 3 inputs out dx,al ;(see below Note1) ;Read digital input data. mov dx,2Eh mov al,0E1h out dx,al mov dx,2Fh in dx,al ;bit5~7 are onboard digital I/O connector pin ;0~2 state (1 High, 0 Low) (see below Note2) ;Programming DO port as output. mov dx,2Eh mov al,0E4h out dx,al mov dx,2Fh ;If X=00h, DO is programmed as 5 outputs mov al,Xh out dx,al ;(see below Note3) ; Set digital output pins value. mov dx,2Eh mov al,0E5h out dx,al mov dx,2Fh ;set output value Y mov al,Yh out dx,al ;bit0~4 are onboard digital I/O connector pin ;0~4 state (1 High, 0 Low) ;(see below Note4) Note1: The N has 8 bits. Only bits 5,6,7 are programmable. " 1" means that the bit is programmed to input. " 0" means that the bit is programmed to output. Ex: N=E0h=11100000b Bit7 Bit6 DI2 DI1 as input as input Bit5 DI0 as input Bit4 Bit3 Bit2 Bit1 Bit0 No use No use No use No use No use When DI0~2 are connected to external device, the device sets DI0~2 to high Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 DI2 = 1 DI1 = 1 DI0 = 1 No use No use No use No use Bit0 No use Note2: 1. 2. When DI0~2 are connected to external device, the device sets DI0 to low and DI1~2 to high Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 DI2 = 1 DI1 = 1 DI0 = 0 No use No use No use No use No use Digital I/O 65 NANO830/831 Intel® AtomTM D2550/N2600 Processor Nano-ITX Board Note3: The X has 8 bits. Only bits 0,1,2,3,4 are programmable. " 1" means that the bit is programmed to input. " 0" means that the bit is programmed to output. Ex: X=00h=00000000b Bit7 Bit6 No use Bit5 Bit4 DO4 as output Bit3 DO3 as output Bit2 DO2 as output Bit1 DO1 as output Bit0 DO0 as output No use No use When Y=15h Bit7 Bit6 No use No use Bit5 No use Bit4 1 Bit3 0 Bit2 1 Bit1 0 Bit0 1 When Y=07h Bit7 Bit6 No use No use Bit5 No use Bit4 0 Bit3 0 Bit2 1 Bit1 1 Bit0 1 Note4: 1. 2. 66 Digital I/O