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ETX-945 User Manual
High-Performance ETX 3.0 Compliant Computer-on-Modules
Revision Date Comment
1.00 Initial Release
Copyright 2009
FOR TECHNICAL SUPPORT Diamond Systems Corporation
PLEASE CONTACT: 1255 Terra Bella Ave.
Mountain View, CA 94043 USA
support@diamondsystems.com Tel 1-650-810-2500
Fax 1-650-810-2525
www.diamondsystems.com
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CONTENTS IMPORTANT SAFE-HANDLING INFORMATION ......................................................................................................3 1. INTRODUCTION .................................................................................................................................................4 1.1 Features .........................................................................................................................................................4 1.2 ETX-945 Mo
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IMPORTANT SAFE-HANDLING INFORMATION WARNING: ESD-Sensitive Electronic Equipment! Observe ESD-safe handling procedures when working with this product. Always use this product in a properly grounded work area and wear appropriate ESD-preventive clothing and/or accessories. Always store this product in ESD-protective packaging when not in use. Safe Handling Precautions The ETX-945 contains numerous I/O connectors that connect to sensitive electronic components. This creates many oppo
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1. INTRODUCTION The ETX-945 is a highly integrated computer-on-module (COM) available with a range of high performance Intel® TM TM Core 2 Duo, Core Duo, and Celeron M processors. The module provides an SO-DIMM socket for up to 2GB of DDR2 DRAM, and provides interface controllers for high-resolution CRT and LVDS-interfaced displays, 10/100Mbps Ethernet, SATA and IDE storage devices, USB 2.0, audio, serial, parallel, and PS/2 ports. Additionally, the ETX-945 provides a high degree of syste
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Keyboard/mouse: Standard PS/2 keyboard/mouse ports USB keyboard/mouse supported USB: 4 USB 2.0 ports Other: 2 SMbus, I C, IrDA serial interfaces PC speaker interface Watchdog timer; supports 255-level reset Dual system expansion buses: 16-bit ISA bus 32-bit PCI bus; supports 4 PCI masters Size: ETX 3.0 compliant form-factor (physical and electrical) * 4.5 x 3.7 inches (95mm x 114mm) Input voltage: System power: +5V DC +/-5% Real-time clock backup: +2.0 to 3
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2. FUNCTIONAL OVERVIEW 2.1 Block Diagram Figure 1 shows the ETX-945 COM’s functional blocks, ETX bus, and peripheral interface signals. Figure 1: Functional Block Diagram ETX-945 User Manual 1.00 www.diamondsystems.com Page 6
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2.2 Board Dimensions, Mounting Holes, and Connectors The two diagrams below show the mechanical dimensions of the ETX-945’s board outline and five mounting holes, as well as the position of all connectors on both the top and bottom sides of the board. Figure 2: Board Layout – Top ETX-945 User Manual 1.00 www.diamondsystems.com Page 7
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Figure 3: Board Layout – Bottom ETX-945 User Manual 1.00 www.diamondsystems.com Page 8
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2.3 Bus and Interface Connector Summary The ETX-945 has six interface connectors, as listed in the tables below. These connectors are defined in accordance with the ETX 3.0 Computer-on-Module (COM) Specification. Signal functions relating to each of the ETX-945’s interface connectors are discussed in greater detail in Section 4 of this document. 2.4 ETX Bus Connectors Connector Location Pins Function ETX1 Bottom 100 PCI bus, USB ports, audio interface, serial IRQ ETX2 Bottom 100 I
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3. GETTING STARTED This section of the ETX-945 User Manual covers basic hardware setup, power connection, system boot-up, and initial software configuration. First-time ETX-945 users normally receive the product as part of one of Diamond’s Development Kits, which provide everything needed to ensure rapid application development. Important Safe-Handling Information WARNING: ESD-Sensitive Electronic Equipment! Observe ESD-safe handling procedures when working with this produc
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3.1 ETX Development Kits To facilitate evaluation and development, the ETX-945 is normally supplied pre-integrated into one of Diamond’s ETX development kits (pictured below). This approach increases project efficiency and reduces risks by providing a known good environment for rapid application development. Diamond’s ETX development kits feature baseboards with I/O connectors for quick and easy access to nearly all system interfaces, a CompactFlash socket, and modular PC/104-Plus expan
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Using the four long screws provided with the heat-spreader (or heatsink), secure the heat-spreader (or heatsink) to the corresponding standoffs located in the four corners of the top of the ETX-945 module. If the ETX module is to being installed in an enclosure, align the heat-spreader’s (or heatsink’s) corner mounting holes with corresponding hole-pattern on the enclosure before inserting and tightening the four mounting screws. Depending on the thickness of the enclosure or chassis mate
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3.4.3 Advanced Chipset Features From this setup page you can configure the size of the video controller’s on-chip frame buffer, set up the controller’s DVMT (Dynamic Video Memory Technology) mode and memory size, and specify what type of display will be used as the system’s boot-up console output device. DVMT is an advanced video controller function that dynamically allocates system memory to be used as video memory in order to efficiently use of available resources to maximize grap
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3.4.6 PnP/PCI Configuration This section of Setup provides options for configuration of devices connected to the ETX-945’s PCI bus, including the choice between automatic “plug-and-play” (PnP) configuration of IRQ and DMA channel settings. If PnP is disabled, you can specific desired IRQ and DMA channels for PCI devices here. 3.4.7 Other Settings and Utilities A few additional status and control functions are available from Setup’s main menu. These include: CPU temperature status
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4. INTERFACE CONNECTOR DETAILS This section describes the functions available on all of the ETX-945’s bus and I/O interface connectors. The ETX 3.0 specification, which provides more detail regarding the signals present on the ETX1, ETX2, ETX3, and ETX4 connectors, is available from the ETX Industrial Group’s website (http://www.etx-ig.de/specs/specs.php). Also available from that site is the latest ETX Design Guide, which provides further details on the ETX connector signal functions
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4.1 ETX1 Connector The 100-pin, high-density ETX1 connector implements the board’s PCI bus, USB, and audio signals, as indicated in the table below. Further information regarding each of these signal groups follows the table. (Note: Pins designated “RESERVED” should be left unconnected.) GND 1 2 GND VCC 51 52 VCC PCICLK3 3 4 PCICLK4 PAR 53 54 SERR# GND 5 6 GND GPERR# 55 56 RESERVED PCICLK1 7 8 PCICLK2 PME# 57 58 USB2- REQ3# 9 10 GNT3# LOCK# 59 60 DEVSEL# GNT2# 11 12 3V TRDY#
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4.1.1 PCI bus signals This set of pins implements the module’s PCI expansion bus. For further information regarding the functions of the PCI bus signals, refer to the PCI Bus Specification, available from the PCI Special Interest Group (http://www.pcisig.com/specifications). Signal Name Signal function Direction PCICLK1-4 PCI clock outputs for external PCI devices Out REQ0-3# Bus Request signals of PCI Masters In GNT0-3# Grant signals to PCI Masters Out AD0-31 PCI address and data b
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4.1.2 USB signals These pins provide connections to the board’s four USB channels. For further information regarding the functions of the USB signals listed above, refer to the USB 2.0 Specification, available from the USB Implementers Forum (http://www.usb.org). Signal Name Signal Function Direction USB0+ USB Port 0 data + In/Out USB0- USB Port 0 data - In/Out USB1+ USB Port 1 data + In/Out USB1- USB Port 1 data - In/Out USB2+ USB Port 2 data + In/Out USB2- USB Port 2 data - In
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4.1.4 Miscellaneous functions These pins carry power and ground signals and an interrupt request as indicated. Signal Name Signal Function Direction VCC +5V ±5% DC power input In GND Power ground n/a 3V +3.3V ± 5% supply generated on the ETX module, for Out powering external devices (500mA max. external load) RESERVED Do not connect n/a SERIRQ Serial interrupt request In Caution: Do not connect the 3V pins (pins 12 and 16) of EXT1 to an external power source! ETX-945 User Manu
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4.2 ETX2 Connector The 100-pin, high-density ETX2 connector implements the board’s ISA bus signals, as indicated in the table below. For further information on the module’s ISA bus signals, refer to the ETX 3.0 Specification. GND 1 2 GND VCC 51 52 VCC SD14 3 4 SD15 SA6 53 54 IRQ5 SD13 5 6 MASTER# SA7 55 56 IRQ6 SD12 7 8 DREQ7 SA8 57 58 IRQ7 SD11 9 10 DACK7# SA9 59 60 SYSCLK SD10 11 12 DREQ6 SA10 61 62 REFSH# SD9 13 14 DACK6# SA11 63 64 DREQ1 SD8 15 16 DREQ5 SA12 65 66 DA
